Update zlib to 1.2.5.
This change applies upstream patches from 1.2.3 to 1.2.5.
BUG=30704,39219
TEST=build and run Chrome without any valgrind errors.
Review URL: http://codereview.chromium.org/8806004
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: f159d38cb10c746d54e1f380c94878dbeb935b01
diff --git a/README.chromium b/README.chromium
index d174a4c..9eb1961 100644
--- a/README.chromium
+++ b/README.chromium
@@ -1,6 +1,7 @@
Name: zlib
URL: http://zlib.net/
-Version: 1.2.3
+Version: 1.2.5
+Security Critical: yes
Description:
General purpose compression library
diff --git a/adler32.c b/adler32.c
index 3c2e944..65ad6a5 100644
--- a/adler32.c
+++ b/adler32.c
@@ -1,12 +1,15 @@
/* adler32.c -- compute the Adler-32 checksum of a data stream
- * Copyright (C) 1995-2004 Mark Adler
+ * Copyright (C) 1995-2007 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/
-/* @(#) $Id: adler32.c,v 3.6 2005/08/04 19:14:14 tor%cs.brown.edu Exp $ */
+/* @(#) $Id$ */
-#define ZLIB_INTERNAL
-#include "zlib.h"
+#include "zutil.h"
+
+#define local static
+
+local uLong adler32_combine_(uLong adler1, uLong adler2, z_off64_t len2);
#define BASE 65521UL /* largest prime smaller than 65536 */
#define NMAX 5552
@@ -125,10 +128,10 @@
}
/* ========================================================================= */
-uLong ZEXPORT adler32_combine(adler1, adler2, len2)
+local uLong adler32_combine_(adler1, adler2, len2)
uLong adler1;
uLong adler2;
- z_off_t len2;
+ z_off64_t len2;
{
unsigned long sum1;
unsigned long sum2;
@@ -141,9 +144,26 @@
MOD(sum2);
sum1 += (adler2 & 0xffff) + BASE - 1;
sum2 += ((adler1 >> 16) & 0xffff) + ((adler2 >> 16) & 0xffff) + BASE - rem;
- if (sum1 > BASE) sum1 -= BASE;
- if (sum1 > BASE) sum1 -= BASE;
- if (sum2 > (BASE << 1)) sum2 -= (BASE << 1);
- if (sum2 > BASE) sum2 -= BASE;
+ if (sum1 >= BASE) sum1 -= BASE;
+ if (sum1 >= BASE) sum1 -= BASE;
+ if (sum2 >= (BASE << 1)) sum2 -= (BASE << 1);
+ if (sum2 >= BASE) sum2 -= BASE;
return sum1 | (sum2 << 16);
}
+
+/* ========================================================================= */
+uLong ZEXPORT adler32_combine(adler1, adler2, len2)
+ uLong adler1;
+ uLong adler2;
+ z_off_t len2;
+{
+ return adler32_combine_(adler1, adler2, len2);
+}
+
+uLong ZEXPORT adler32_combine64(adler1, adler2, len2)
+ uLong adler1;
+ uLong adler2;
+ z_off64_t len2;
+{
+ return adler32_combine_(adler1, adler2, len2);
+}
diff --git a/compress.c b/compress.c
index 825cbbc..ea4dfbe 100644
--- a/compress.c
+++ b/compress.c
@@ -1,9 +1,9 @@
/* compress.c -- compress a memory buffer
- * Copyright (C) 1995-2003 Jean-loup Gailly.
+ * Copyright (C) 1995-2005 Jean-loup Gailly.
* For conditions of distribution and use, see copyright notice in zlib.h
*/
-/* @(#) $Id: compress.c,v 3.6 2005/08/04 19:14:14 tor%cs.brown.edu Exp $ */
+/* @(#) $Id$ */
#define ZLIB_INTERNAL
#include "zlib.h"
@@ -75,5 +75,6 @@
uLong ZEXPORT compressBound (sourceLen)
uLong sourceLen;
{
- return sourceLen + (sourceLen >> 12) + (sourceLen >> 14) + 11;
+ return sourceLen + (sourceLen >> 12) + (sourceLen >> 14) +
+ (sourceLen >> 25) + 13;
}
diff --git a/contrib/minizip/crypt.h b/contrib/minizip/crypt.h
index 622f4bc..a01d08d 100644
--- a/contrib/minizip/crypt.h
+++ b/contrib/minizip/crypt.h
@@ -87,13 +87,12 @@
# define ZCR_SEED2 3141592654UL /* use PI as default pattern */
# endif
-static int crypthead(passwd, buf, bufSize, pkeys, pcrc_32_tab, crcForCrypting)
- const char *passwd; /* password string */
- unsigned char *buf; /* where to write header */
- int bufSize;
- unsigned long* pkeys;
- const unsigned long* pcrc_32_tab;
- unsigned long crcForCrypting;
+static int crypthead(const char* passwd, /* password string */
+ unsigned char* buf, /* where to write header */
+ int bufSize,
+ unsigned long* pkeys,
+ const unsigned long* pcrc_32_tab,
+ unsigned long crcForCrypting)
{
int n; /* index in random header */
int t; /* temporary */
@@ -124,8 +123,8 @@
{
buf[n] = (unsigned char)zencode(pkeys, pcrc_32_tab, header[n], t);
}
- buf[n++] = zencode(pkeys, pcrc_32_tab, (int)(crcForCrypting >> 16) & 0xff, t);
- buf[n++] = zencode(pkeys, pcrc_32_tab, (int)(crcForCrypting >> 24) & 0xff, t);
+ buf[n++] = (unsigned char)zencode(pkeys, pcrc_32_tab, (int)(crcForCrypting >> 16) & 0xff, t);
+ buf[n++] = (unsigned char)zencode(pkeys, pcrc_32_tab, (int)(crcForCrypting >> 24) & 0xff, t);
return n;
}
diff --git a/contrib/minizip/ioapi.c b/contrib/minizip/ioapi.c
index 3aad38a..49958f6 100644
--- a/contrib/minizip/ioapi.c
+++ b/contrib/minizip/ioapi.c
@@ -1,77 +1,86 @@
-/* ioapi.c -- IO base function header for compress/uncompress .zip
- files using zlib + zip or unzip API
+/* ioapi.h -- IO base function header for compress/uncompress .zip
+ part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html )
- Version 1.01e, February 12th, 2005
+ Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html )
- Copyright (C) 1998-2005 Gilles Vollant
+ Modifications for Zip64 support
+ Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com )
+
+ For more info read MiniZip_info.txt
+
*/
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#if defined(USE_SYSTEM_ZLIB)
-#include <zlib.h>
-#else
-#include "third_party/zlib/zlib.h"
+#if (defined(_WIN32))
+ #define _CRT_SECURE_NO_WARNINGS
#endif
#include "ioapi.h"
-/* I've found an old Unix (a SunOS 4.1.3_U1) without all SEEK_* defined.... */
+voidpf call_zopen64 (const zlib_filefunc64_32_def* pfilefunc,const void*filename,int mode)
+{
+ if (pfilefunc->zfile_func64.zopen64_file != NULL)
+ return (*(pfilefunc->zfile_func64.zopen64_file)) (pfilefunc->zfile_func64.opaque,filename,mode);
+ else
+ {
+ return (*(pfilefunc->zopen32_file))(pfilefunc->zfile_func64.opaque,(const char*)filename,mode);
+ }
+}
-#ifndef SEEK_CUR
-#define SEEK_CUR 1
-#endif
+long call_zseek64 (const zlib_filefunc64_32_def* pfilefunc,voidpf filestream, ZPOS64_T offset, int origin)
+{
+ if (pfilefunc->zfile_func64.zseek64_file != NULL)
+ return (*(pfilefunc->zfile_func64.zseek64_file)) (pfilefunc->zfile_func64.opaque,filestream,offset,origin);
+ else
+ {
+ uLong offsetTruncated = (uLong)offset;
+ if (offsetTruncated != offset)
+ return -1;
+ else
+ return (*(pfilefunc->zseek32_file))(pfilefunc->zfile_func64.opaque,filestream,offsetTruncated,origin);
+ }
+}
-#ifndef SEEK_END
-#define SEEK_END 2
-#endif
+ZPOS64_T call_ztell64 (const zlib_filefunc64_32_def* pfilefunc,voidpf filestream)
+{
+ if (pfilefunc->zfile_func64.zseek64_file != NULL)
+ return (*(pfilefunc->zfile_func64.ztell64_file)) (pfilefunc->zfile_func64.opaque,filestream);
+ else
+ {
+ uLong tell_uLong = (*(pfilefunc->ztell32_file))(pfilefunc->zfile_func64.opaque,filestream);
+ if ((tell_uLong) == ((uLong)-1))
+ return (ZPOS64_T)-1;
+ else
+ return tell_uLong;
+ }
+}
-#ifndef SEEK_SET
-#define SEEK_SET 0
-#endif
-
-voidpf ZCALLBACK fopen_file_func OF((
- voidpf opaque,
- const char* filename,
- int mode));
-
-uLong ZCALLBACK fread_file_func OF((
- voidpf opaque,
- voidpf stream,
- void* buf,
- uLong size));
-
-uLong ZCALLBACK fwrite_file_func OF((
- voidpf opaque,
- voidpf stream,
- const void* buf,
- uLong size));
-
-long ZCALLBACK ftell_file_func OF((
- voidpf opaque,
- voidpf stream));
-
-long ZCALLBACK fseek_file_func OF((
- voidpf opaque,
- voidpf stream,
- uLong offset,
- int origin));
-
-int ZCALLBACK fclose_file_func OF((
- voidpf opaque,
- voidpf stream));
-
-int ZCALLBACK ferror_file_func OF((
- voidpf opaque,
- voidpf stream));
+void fill_zlib_filefunc64_32_def_from_filefunc32(zlib_filefunc64_32_def* p_filefunc64_32,const zlib_filefunc_def* p_filefunc32)
+{
+ p_filefunc64_32->zfile_func64.zopen64_file = NULL;
+ p_filefunc64_32->zopen32_file = p_filefunc32->zopen_file;
+ p_filefunc64_32->zfile_func64.zerror_file = p_filefunc32->zerror_file;
+ p_filefunc64_32->zfile_func64.zread_file = p_filefunc32->zread_file;
+ p_filefunc64_32->zfile_func64.zwrite_file = p_filefunc32->zwrite_file;
+ p_filefunc64_32->zfile_func64.ztell64_file = NULL;
+ p_filefunc64_32->zfile_func64.zseek64_file = NULL;
+ p_filefunc64_32->zfile_func64.zclose_file = p_filefunc32->zclose_file;
+ p_filefunc64_32->zfile_func64.zerror_file = p_filefunc32->zerror_file;
+ p_filefunc64_32->zfile_func64.opaque = p_filefunc32->opaque;
+ p_filefunc64_32->zseek32_file = p_filefunc32->zseek_file;
+ p_filefunc64_32->ztell32_file = p_filefunc32->ztell_file;
+}
-voidpf ZCALLBACK fopen_file_func (opaque, filename, mode)
- voidpf opaque;
- const char* filename;
- int mode;
+
+static voidpf ZCALLBACK fopen_file_func OF((voidpf opaque, const char* filename, int mode));
+static uLong ZCALLBACK fread_file_func OF((voidpf opaque, voidpf stream, void* buf, uLong size));
+static uLong ZCALLBACK fwrite_file_func OF((voidpf opaque, voidpf stream, const void* buf,uLong size));
+static ZPOS64_T ZCALLBACK ftell64_file_func OF((voidpf opaque, voidpf stream));
+static long ZCALLBACK fseek64_file_func OF((voidpf opaque, voidpf stream, ZPOS64_T offset, int origin));
+static int ZCALLBACK fclose_file_func OF((voidpf opaque, voidpf stream));
+static int ZCALLBACK ferror_file_func OF((voidpf opaque, voidpf stream));
+
+static voidpf ZCALLBACK fopen_file_func (voidpf opaque, const char* filename, int mode)
{
FILE* file = NULL;
const char* mode_fopen = NULL;
@@ -89,44 +98,55 @@
return file;
}
+static voidpf ZCALLBACK fopen64_file_func (voidpf opaque, const void* filename, int mode)
+{
+ FILE* file = NULL;
+ const char* mode_fopen = NULL;
+ if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER)==ZLIB_FILEFUNC_MODE_READ)
+ mode_fopen = "rb";
+ else
+ if (mode & ZLIB_FILEFUNC_MODE_EXISTING)
+ mode_fopen = "r+b";
+ else
+ if (mode & ZLIB_FILEFUNC_MODE_CREATE)
+ mode_fopen = "wb";
-uLong ZCALLBACK fread_file_func (opaque, stream, buf, size)
- voidpf opaque;
- voidpf stream;
- void* buf;
- uLong size;
+ if ((filename!=NULL) && (mode_fopen != NULL))
+ file = fopen64((const char*)filename, mode_fopen);
+ return file;
+}
+
+
+static uLong ZCALLBACK fread_file_func (voidpf opaque, voidpf stream, void* buf, uLong size)
{
uLong ret;
ret = (uLong)fread(buf, 1, (size_t)size, (FILE *)stream);
return ret;
}
-
-uLong ZCALLBACK fwrite_file_func (opaque, stream, buf, size)
- voidpf opaque;
- voidpf stream;
- const void* buf;
- uLong size;
+static uLong ZCALLBACK fwrite_file_func (voidpf opaque, voidpf stream, const void* buf, uLong size)
{
uLong ret;
ret = (uLong)fwrite(buf, 1, (size_t)size, (FILE *)stream);
return ret;
}
-long ZCALLBACK ftell_file_func (opaque, stream)
- voidpf opaque;
- voidpf stream;
+static long ZCALLBACK ftell_file_func (voidpf opaque, voidpf stream)
{
long ret;
ret = ftell((FILE *)stream);
return ret;
}
-long ZCALLBACK fseek_file_func (opaque, stream, offset, origin)
- voidpf opaque;
- voidpf stream;
- uLong offset;
- int origin;
+
+static ZPOS64_T ZCALLBACK ftell64_file_func (voidpf opaque, voidpf stream)
+{
+ ZPOS64_T ret;
+ ret = ftello64((FILE *)stream);
+ return ret;
+}
+
+static long ZCALLBACK fseek_file_func (voidpf opaque, voidpf stream, uLong offset, int origin)
{
int fseek_origin=0;
long ret;
@@ -144,22 +164,45 @@
default: return -1;
}
ret = 0;
- fseek((FILE *)stream, offset, fseek_origin);
+ if (fseek((FILE *)stream, offset, fseek_origin) != 0)
+ ret = -1;
return ret;
}
-int ZCALLBACK fclose_file_func (opaque, stream)
- voidpf opaque;
- voidpf stream;
+static long ZCALLBACK fseek64_file_func (voidpf opaque, voidpf stream, ZPOS64_T offset, int origin)
+{
+ int fseek_origin=0;
+ long ret;
+ switch (origin)
+ {
+ case ZLIB_FILEFUNC_SEEK_CUR :
+ fseek_origin = SEEK_CUR;
+ break;
+ case ZLIB_FILEFUNC_SEEK_END :
+ fseek_origin = SEEK_END;
+ break;
+ case ZLIB_FILEFUNC_SEEK_SET :
+ fseek_origin = SEEK_SET;
+ break;
+ default: return -1;
+ }
+ ret = 0;
+
+ if(fseeko64((FILE *)stream, offset, fseek_origin) != 0)
+ ret = -1;
+
+ return ret;
+}
+
+
+static int ZCALLBACK fclose_file_func (voidpf opaque, voidpf stream)
{
int ret;
ret = fclose((FILE *)stream);
return ret;
}
-int ZCALLBACK ferror_file_func (opaque, stream)
- voidpf opaque;
- voidpf stream;
+static int ZCALLBACK ferror_file_func (voidpf opaque, voidpf stream)
{
int ret;
ret = ferror((FILE *)stream);
@@ -178,3 +221,15 @@
pzlib_filefunc_def->zerror_file = ferror_file_func;
pzlib_filefunc_def->opaque = NULL;
}
+
+void fill_fopen64_filefunc (zlib_filefunc64_def* pzlib_filefunc_def)
+{
+ pzlib_filefunc_def->zopen64_file = fopen64_file_func;
+ pzlib_filefunc_def->zread_file = fread_file_func;
+ pzlib_filefunc_def->zwrite_file = fwrite_file_func;
+ pzlib_filefunc_def->ztell64_file = ftell64_file_func;
+ pzlib_filefunc_def->zseek64_file = fseek64_file_func;
+ pzlib_filefunc_def->zclose_file = fclose_file_func;
+ pzlib_filefunc_def->zerror_file = ferror_file_func;
+ pzlib_filefunc_def->opaque = NULL;
+}
diff --git a/contrib/minizip/ioapi.h b/contrib/minizip/ioapi.h
index 7d457ba..c466e97 100644
--- a/contrib/minizip/ioapi.h
+++ b/contrib/minizip/ioapi.h
@@ -1,13 +1,108 @@
/* ioapi.h -- IO base function header for compress/uncompress .zip
- files using zlib + zip or unzip API
+ part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html )
- Version 1.01e, February 12th, 2005
+ Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html )
- Copyright (C) 1998-2005 Gilles Vollant
+ Modifications for Zip64 support
+ Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com )
+
+ For more info read MiniZip_info.txt
+
+ Changes
+
+ Oct-2009 - Defined ZPOS64_T to fpos_t on windows and u_int64_t on linux. (might need to find a better why for this)
+ Oct-2009 - Change to fseeko64, ftello64 and fopen64 so large files would work on linux.
+ More if/def section may be needed to support other platforms
+ Oct-2009 - Defined fxxxx64 calls to normal fopen/ftell/fseek so they would compile on windows.
+ (but you should use iowin32.c for windows instead)
+
*/
-#ifndef _ZLIBIOAPI_H
-#define _ZLIBIOAPI_H
+#ifndef _ZLIBIOAPI64_H
+#define _ZLIBIOAPI64_H
+
+#if (!defined(_WIN32)) && (!defined(WIN32))
+
+ // Linux needs this to support file operation on files larger then 4+GB
+ // But might need better if/def to select just the platforms that needs them.
+
+ #ifndef __USE_FILE_OFFSET64
+ #define __USE_FILE_OFFSET64
+ #endif
+ #ifndef __USE_LARGEFILE64
+ #define __USE_LARGEFILE64
+ #endif
+ #ifndef _LARGEFILE64_SOURCE
+ #define _LARGEFILE64_SOURCE
+ #endif
+ #ifndef _FILE_OFFSET_BIT
+ #define _FILE_OFFSET_BIT 64
+ #endif
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#if defined(USE_SYSTEM_ZLIB)
+#include <zlib.h>
+#else
+#include "third_party/zlib/zlib.h"
+#endif
+
+#if defined(USE_FILE32API)
+#define fopen64 fopen
+#define ftello64 ftell
+#define fseeko64 fseek
+#else
+#ifdef _MSC_VER
+ #define fopen64 fopen
+ #if (_MSC_VER >= 1400) && (!(defined(NO_MSCVER_FILE64_FUNC)))
+ #define ftello64 _ftelli64
+ #define fseeko64 _fseeki64
+ #else // old MSC
+ #define ftello64 ftell
+ #define fseeko64 fseek
+ #endif
+#endif
+#endif
+
+/*
+#ifndef ZPOS64_T
+ #ifdef _WIN32
+ #define ZPOS64_T fpos_t
+ #else
+ #include <stdint.h>
+ #define ZPOS64_T uint64_t
+ #endif
+#endif
+*/
+
+#ifdef HAVE_MINIZIP64_CONF_H
+#include "mz64conf.h"
+#endif
+
+/* a type choosen by DEFINE */
+#ifdef HAVE_64BIT_INT_CUSTOM
+typedef 64BIT_INT_CUSTOM_TYPE ZPOS64_T;
+#else
+#ifdef HAS_STDINT_H
+#include "stdint.h"
+typedef uint64_t ZPOS64_T;
+#else
+
+
+#if defined(_MSC_VER) || defined(__BORLANDC__)
+typedef unsigned __int64 ZPOS64_T;
+#else
+typedef unsigned long long int ZPOS64_T;
+#endif
+#endif
+#endif
+
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
#define ZLIB_FILEFUNC_SEEK_CUR (1)
@@ -23,26 +118,27 @@
#ifndef ZCALLBACK
-
-#if (defined(WIN32) || defined (WINDOWS) || defined (_WINDOWS)) && defined(CALLBACK) && defined (USEWINDOWS_CALLBACK)
-#define ZCALLBACK CALLBACK
-#else
-#define ZCALLBACK
-#endif
+ #if (defined(WIN32) || defined(_WIN32) || defined (WINDOWS) || defined (_WINDOWS)) && defined(CALLBACK) && defined (USEWINDOWS_CALLBACK)
+ #define ZCALLBACK CALLBACK
+ #else
+ #define ZCALLBACK
+ #endif
#endif
-#ifdef __cplusplus
-extern "C" {
-#endif
-typedef voidpf (ZCALLBACK *open_file_func) OF((voidpf opaque, const char* filename, int mode));
-typedef uLong (ZCALLBACK *read_file_func) OF((voidpf opaque, voidpf stream, void* buf, uLong size));
-typedef uLong (ZCALLBACK *write_file_func) OF((voidpf opaque, voidpf stream, const void* buf, uLong size));
-typedef long (ZCALLBACK *tell_file_func) OF((voidpf opaque, voidpf stream));
-typedef long (ZCALLBACK *seek_file_func) OF((voidpf opaque, voidpf stream, uLong offset, int origin));
-typedef int (ZCALLBACK *close_file_func) OF((voidpf opaque, voidpf stream));
-typedef int (ZCALLBACK *testerror_file_func) OF((voidpf opaque, voidpf stream));
+
+typedef voidpf (ZCALLBACK *open_file_func) OF((voidpf opaque, const char* filename, int mode));
+typedef uLong (ZCALLBACK *read_file_func) OF((voidpf opaque, voidpf stream, void* buf, uLong size));
+typedef uLong (ZCALLBACK *write_file_func) OF((voidpf opaque, voidpf stream, const void* buf, uLong size));
+typedef int (ZCALLBACK *close_file_func) OF((voidpf opaque, voidpf stream));
+typedef int (ZCALLBACK *testerror_file_func) OF((voidpf opaque, voidpf stream));
+
+typedef long (ZCALLBACK *tell_file_func) OF((voidpf opaque, voidpf stream));
+typedef long (ZCALLBACK *seek_file_func) OF((voidpf opaque, voidpf stream, uLong offset, int origin));
+
+
+/* here is the "old" 32 bits structure structure */
typedef struct zlib_filefunc_def_s
{
open_file_func zopen_file;
@@ -55,21 +151,54 @@
voidpf opaque;
} zlib_filefunc_def;
+typedef ZPOS64_T (ZCALLBACK *tell64_file_func) OF((voidpf opaque, voidpf stream));
+typedef long (ZCALLBACK *seek64_file_func) OF((voidpf opaque, voidpf stream, ZPOS64_T offset, int origin));
+typedef voidpf (ZCALLBACK *open64_file_func) OF((voidpf opaque, const void* filename, int mode));
+typedef struct zlib_filefunc64_def_s
+{
+ open64_file_func zopen64_file;
+ read_file_func zread_file;
+ write_file_func zwrite_file;
+ tell64_file_func ztell64_file;
+ seek64_file_func zseek64_file;
+ close_file_func zclose_file;
+ testerror_file_func zerror_file;
+ voidpf opaque;
+} zlib_filefunc64_def;
+void fill_fopen64_filefunc OF((zlib_filefunc64_def* pzlib_filefunc_def));
void fill_fopen_filefunc OF((zlib_filefunc_def* pzlib_filefunc_def));
-#define ZREAD(filefunc,filestream,buf,size) ((*((filefunc).zread_file))((filefunc).opaque,filestream,buf,size))
-#define ZWRITE(filefunc,filestream,buf,size) ((*((filefunc).zwrite_file))((filefunc).opaque,filestream,buf,size))
-#define ZTELL(filefunc,filestream) ((*((filefunc).ztell_file))((filefunc).opaque,filestream))
-#define ZSEEK(filefunc,filestream,pos,mode) ((*((filefunc).zseek_file))((filefunc).opaque,filestream,pos,mode))
-#define ZCLOSE(filefunc,filestream) ((*((filefunc).zclose_file))((filefunc).opaque,filestream))
-#define ZERROR(filefunc,filestream) ((*((filefunc).zerror_file))((filefunc).opaque,filestream))
+/* now internal definition, only for zip.c and unzip.h */
+typedef struct zlib_filefunc64_32_def_s
+{
+ zlib_filefunc64_def zfile_func64;
+ open_file_func zopen32_file;
+ tell_file_func ztell32_file;
+ seek_file_func zseek32_file;
+} zlib_filefunc64_32_def;
+#define ZREAD64(filefunc,filestream,buf,size) ((*((filefunc).zfile_func64.zread_file)) ((filefunc).zfile_func64.opaque,filestream,buf,size))
+#define ZWRITE64(filefunc,filestream,buf,size) ((*((filefunc).zfile_func64.zwrite_file)) ((filefunc).zfile_func64.opaque,filestream,buf,size))
+//#define ZTELL64(filefunc,filestream) ((*((filefunc).ztell64_file)) ((filefunc).opaque,filestream))
+//#define ZSEEK64(filefunc,filestream,pos,mode) ((*((filefunc).zseek64_file)) ((filefunc).opaque,filestream,pos,mode))
+#define ZCLOSE64(filefunc,filestream) ((*((filefunc).zfile_func64.zclose_file)) ((filefunc).zfile_func64.opaque,filestream))
+#define ZERROR64(filefunc,filestream) ((*((filefunc).zfile_func64.zerror_file)) ((filefunc).zfile_func64.opaque,filestream))
+
+voidpf call_zopen64 OF((const zlib_filefunc64_32_def* pfilefunc,const void*filename,int mode));
+long call_zseek64 OF((const zlib_filefunc64_32_def* pfilefunc,voidpf filestream, ZPOS64_T offset, int origin));
+ZPOS64_T call_ztell64 OF((const zlib_filefunc64_32_def* pfilefunc,voidpf filestream));
+
+void fill_zlib_filefunc64_32_def_from_filefunc32(zlib_filefunc64_32_def* p_filefunc64_32,const zlib_filefunc_def* p_filefunc32);
+
+#define ZOPEN64(filefunc,filename,mode) (call_zopen64((&(filefunc)),(filename),(mode)))
+#define ZTELL64(filefunc,filestream) (call_ztell64((&(filefunc)),(filestream)))
+#define ZSEEK64(filefunc,filestream,pos,mode) (call_zseek64((&(filefunc)),(filestream),(pos),(mode)))
+
#ifdef __cplusplus
}
#endif
#endif
-
diff --git a/contrib/minizip/iowin32.c b/contrib/minizip/iowin32.c
index a9b5f78..6a2a883 100644
--- a/contrib/minizip/iowin32.c
+++ b/contrib/minizip/iowin32.c
@@ -1,10 +1,14 @@
/* iowin32.c -- IO base function header for compress/uncompress .zip
- files using zlib + zip or unzip API
- This IO API version uses the Win32 API (for Microsoft Windows)
+ Version 1.1, February 14h, 2010
+ part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html )
- Version 1.01e, February 12th, 2005
+ Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html )
- Copyright (C) 1998-2005 Gilles Vollant
+ Modifications for Zip64 support
+ Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com )
+
+ For more info read MiniZip_info.txt
+
*/
#include <stdlib.h>
@@ -21,40 +25,13 @@
#define INVALID_SET_FILE_POINTER ((DWORD)-1)
#endif
-voidpf ZCALLBACK win32_open_file_func OF((
- voidpf opaque,
- const char* filename,
- int mode));
-
-uLong ZCALLBACK win32_read_file_func OF((
- voidpf opaque,
- voidpf stream,
- void* buf,
- uLong size));
-
-uLong ZCALLBACK win32_write_file_func OF((
- voidpf opaque,
- voidpf stream,
- const void* buf,
- uLong size));
-
-long ZCALLBACK win32_tell_file_func OF((
- voidpf opaque,
- voidpf stream));
-
-long ZCALLBACK win32_seek_file_func OF((
- voidpf opaque,
- voidpf stream,
- uLong offset,
- int origin));
-
-int ZCALLBACK win32_close_file_func OF((
- voidpf opaque,
- voidpf stream));
-
-int ZCALLBACK win32_error_file_func OF((
- voidpf opaque,
- voidpf stream));
+voidpf ZCALLBACK win32_open_file_func OF((voidpf opaque, const char* filename, int mode));
+uLong ZCALLBACK win32_read_file_func OF((voidpf opaque, voidpf stream, void* buf, uLong size));
+uLong ZCALLBACK win32_write_file_func OF((voidpf opaque, voidpf stream, const void* buf, uLong size));
+ZPOS64_T ZCALLBACK win32_tell64_file_func OF((voidpf opaque, voidpf stream));
+long ZCALLBACK win32_seek64_file_func OF((voidpf opaque, voidpf stream, ZPOS64_T offset, int origin));
+int ZCALLBACK win32_close_file_func OF((voidpf opaque, voidpf stream));
+int ZCALLBACK win32_error_file_func OF((voidpf opaque, voidpf stream));
typedef struct
{
@@ -62,69 +39,121 @@
int error;
} WIN32FILE_IOWIN;
-voidpf ZCALLBACK win32_open_file_func (opaque, filename, mode)
- voidpf opaque;
- const char* filename;
- int mode;
-{
- const char* mode_fopen = NULL;
- DWORD dwDesiredAccess,dwCreationDisposition,dwShareMode,dwFlagsAndAttributes ;
- HANDLE hFile = 0;
- voidpf ret=NULL;
- dwDesiredAccess = dwShareMode = dwFlagsAndAttributes = 0;
+static void win32_translate_open_mode(int mode,
+ DWORD* lpdwDesiredAccess,
+ DWORD* lpdwCreationDisposition,
+ DWORD* lpdwShareMode,
+ DWORD* lpdwFlagsAndAttributes)
+{
+ *lpdwDesiredAccess = *lpdwShareMode = *lpdwFlagsAndAttributes = *lpdwCreationDisposition = 0;
if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER)==ZLIB_FILEFUNC_MODE_READ)
{
- dwDesiredAccess = GENERIC_READ;
- dwCreationDisposition = OPEN_EXISTING;
- dwShareMode = FILE_SHARE_READ;
+ *lpdwDesiredAccess = GENERIC_READ;
+ *lpdwCreationDisposition = OPEN_EXISTING;
+ *lpdwShareMode = FILE_SHARE_READ;
}
- else
- if (mode & ZLIB_FILEFUNC_MODE_EXISTING)
+ else if (mode & ZLIB_FILEFUNC_MODE_EXISTING)
{
- dwDesiredAccess = GENERIC_WRITE | GENERIC_READ;
- dwCreationDisposition = OPEN_EXISTING;
+ *lpdwDesiredAccess = GENERIC_WRITE | GENERIC_READ;
+ *lpdwCreationDisposition = OPEN_EXISTING;
}
- else
- if (mode & ZLIB_FILEFUNC_MODE_CREATE)
+ else if (mode & ZLIB_FILEFUNC_MODE_CREATE)
{
- dwDesiredAccess = GENERIC_WRITE | GENERIC_READ;
- dwCreationDisposition = CREATE_ALWAYS;
+ *lpdwDesiredAccess = GENERIC_WRITE | GENERIC_READ;
+ *lpdwCreationDisposition = CREATE_ALWAYS;
}
+}
- if ((filename!=NULL) && (dwDesiredAccess != 0))
- hFile = CreateFile((LPCTSTR)filename, dwDesiredAccess, dwShareMode, NULL,
- dwCreationDisposition, dwFlagsAndAttributes, NULL);
+static voidpf win32_build_iowin(HANDLE hFile)
+{
+ voidpf ret=NULL;
- if (hFile == INVALID_HANDLE_VALUE)
- hFile = NULL;
-
- if (hFile != NULL)
+ if ((hFile != NULL) && (hFile != INVALID_HANDLE_VALUE))
{
WIN32FILE_IOWIN w32fiow;
w32fiow.hf = hFile;
w32fiow.error = 0;
ret = malloc(sizeof(WIN32FILE_IOWIN));
+
if (ret==NULL)
CloseHandle(hFile);
- else *((WIN32FILE_IOWIN*)ret) = w32fiow;
+ else
+ *((WIN32FILE_IOWIN*)ret) = w32fiow;
}
return ret;
}
+voidpf ZCALLBACK win32_open64_file_func (voidpf opaque,const void* filename,int mode)
+{
+ const char* mode_fopen = NULL;
+ DWORD dwDesiredAccess,dwCreationDisposition,dwShareMode,dwFlagsAndAttributes ;
+ HANDLE hFile = NULL;
-uLong ZCALLBACK win32_read_file_func (opaque, stream, buf, size)
- voidpf opaque;
- voidpf stream;
- void* buf;
- uLong size;
+ win32_translate_open_mode(mode,&dwDesiredAccess,&dwCreationDisposition,&dwShareMode,&dwFlagsAndAttributes);
+
+ if ((filename!=NULL) && (dwDesiredAccess != 0))
+ hFile = CreateFile((LPCTSTR)filename, dwDesiredAccess, dwShareMode, NULL, dwCreationDisposition, dwFlagsAndAttributes, NULL);
+
+ return win32_build_iowin(hFile);
+}
+
+
+voidpf ZCALLBACK win32_open64_file_funcA (voidpf opaque,const void* filename,int mode)
+{
+ const char* mode_fopen = NULL;
+ DWORD dwDesiredAccess,dwCreationDisposition,dwShareMode,dwFlagsAndAttributes ;
+ HANDLE hFile = NULL;
+
+ win32_translate_open_mode(mode,&dwDesiredAccess,&dwCreationDisposition,&dwShareMode,&dwFlagsAndAttributes);
+
+ if ((filename!=NULL) && (dwDesiredAccess != 0))
+ hFile = CreateFileA((LPCSTR)filename, dwDesiredAccess, dwShareMode, NULL, dwCreationDisposition, dwFlagsAndAttributes, NULL);
+
+ return win32_build_iowin(hFile);
+}
+
+
+voidpf ZCALLBACK win32_open64_file_funcW (voidpf opaque,const void* filename,int mode)
+{
+ const char* mode_fopen = NULL;
+ DWORD dwDesiredAccess,dwCreationDisposition,dwShareMode,dwFlagsAndAttributes ;
+ HANDLE hFile = NULL;
+
+ win32_translate_open_mode(mode,&dwDesiredAccess,&dwCreationDisposition,&dwShareMode,&dwFlagsAndAttributes);
+
+ if ((filename!=NULL) && (dwDesiredAccess != 0))
+ hFile = CreateFileW((LPCWSTR)filename, dwDesiredAccess, dwShareMode, NULL, dwCreationDisposition, dwFlagsAndAttributes, NULL);
+
+ return win32_build_iowin(hFile);
+}
+
+
+voidpf ZCALLBACK win32_open_file_func (voidpf opaque,const char* filename,int mode)
+{
+ const char* mode_fopen = NULL;
+ DWORD dwDesiredAccess,dwCreationDisposition,dwShareMode,dwFlagsAndAttributes ;
+ HANDLE hFile = NULL;
+
+ win32_translate_open_mode(mode,&dwDesiredAccess,&dwCreationDisposition,&dwShareMode,&dwFlagsAndAttributes);
+
+ if ((filename!=NULL) && (dwDesiredAccess != 0))
+ hFile = CreateFile((LPCTSTR)filename, dwDesiredAccess, dwShareMode, NULL, dwCreationDisposition, dwFlagsAndAttributes, NULL);
+
+ return win32_build_iowin(hFile);
+}
+
+
+uLong ZCALLBACK win32_read_file_func (voidpf opaque, voidpf stream, void* buf,uLong size)
{
uLong ret=0;
HANDLE hFile = NULL;
if (stream!=NULL)
hFile = ((WIN32FILE_IOWIN*)stream) -> hf;
+
if (hFile != NULL)
+ {
if (!ReadFile(hFile, buf, size, &ret, NULL))
{
DWORD dwErr = GetLastError();
@@ -132,23 +161,21 @@
dwErr = 0;
((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr;
}
+ }
return ret;
}
-uLong ZCALLBACK win32_write_file_func (opaque, stream, buf, size)
- voidpf opaque;
- voidpf stream;
- const void* buf;
- uLong size;
+uLong ZCALLBACK win32_write_file_func (voidpf opaque,voidpf stream,const void* buf,uLong size)
{
uLong ret=0;
HANDLE hFile = NULL;
if (stream!=NULL)
hFile = ((WIN32FILE_IOWIN*)stream) -> hf;
- if (hFile !=NULL)
+ if (hFile != NULL)
+ {
if (!WriteFile(hFile, buf, size, &ret, NULL))
{
DWORD dwErr = GetLastError();
@@ -156,13 +183,12 @@
dwErr = 0;
((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr;
}
+ }
return ret;
}
-long ZCALLBACK win32_tell_file_func (opaque, stream)
- voidpf opaque;
- voidpf stream;
+long ZCALLBACK win32_tell_file_func (voidpf opaque,voidpf stream)
{
long ret=-1;
HANDLE hFile = NULL;
@@ -183,11 +209,32 @@
return ret;
}
-long ZCALLBACK win32_seek_file_func (opaque, stream, offset, origin)
- voidpf opaque;
- voidpf stream;
- uLong offset;
- int origin;
+ZPOS64_T ZCALLBACK win32_tell64_file_func (voidpf opaque, voidpf stream)
+{
+ ZPOS64_T ret= (ZPOS64_T)-1;
+ HANDLE hFile = NULL;
+ if (stream!=NULL)
+ hFile = ((WIN32FILE_IOWIN*)stream)->hf;
+
+ if (hFile)
+ {
+ LARGE_INTEGER li;
+ li.QuadPart = 0;
+ li.u.LowPart = SetFilePointer(hFile, li.u.LowPart, &li.u.HighPart, FILE_CURRENT);
+ if ( (li.LowPart == 0xFFFFFFFF) && (GetLastError() != NO_ERROR))
+ {
+ DWORD dwErr = GetLastError();
+ ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr;
+ ret = (ZPOS64_T)-1;
+ }
+ else
+ ret=li.QuadPart;
+ }
+ return ret;
+}
+
+
+long ZCALLBACK win32_seek_file_func (voidpf opaque,voidpf stream,uLong offset,int origin)
{
DWORD dwMoveMethod=0xFFFFFFFF;
HANDLE hFile = NULL;
@@ -224,9 +271,46 @@
return ret;
}
-int ZCALLBACK win32_close_file_func (opaque, stream)
- voidpf opaque;
- voidpf stream;
+long ZCALLBACK win32_seek64_file_func (voidpf opaque, voidpf stream,ZPOS64_T offset,int origin)
+{
+ DWORD dwMoveMethod=0xFFFFFFFF;
+ HANDLE hFile = NULL;
+ long ret=-1;
+
+ if (stream!=NULL)
+ hFile = ((WIN32FILE_IOWIN*)stream)->hf;
+
+ switch (origin)
+ {
+ case ZLIB_FILEFUNC_SEEK_CUR :
+ dwMoveMethod = FILE_CURRENT;
+ break;
+ case ZLIB_FILEFUNC_SEEK_END :
+ dwMoveMethod = FILE_END;
+ break;
+ case ZLIB_FILEFUNC_SEEK_SET :
+ dwMoveMethod = FILE_BEGIN;
+ break;
+ default: return -1;
+ }
+
+ if (hFile)
+ {
+ LARGE_INTEGER* li = (LARGE_INTEGER*)&offset;
+ DWORD dwSet = SetFilePointer(hFile, li->u.LowPart, &li->u.HighPart, dwMoveMethod);
+ if (dwSet == INVALID_SET_FILE_POINTER)
+ {
+ DWORD dwErr = GetLastError();
+ ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr;
+ ret = -1;
+ }
+ else
+ ret=0;
+ }
+ return ret;
+}
+
+int ZCALLBACK win32_close_file_func (voidpf opaque, voidpf stream)
{
int ret=-1;
@@ -244,9 +328,7 @@
return ret;
}
-int ZCALLBACK win32_error_file_func (opaque, stream)
- voidpf opaque;
- voidpf stream;
+int ZCALLBACK win32_error_file_func (voidpf opaque,voidpf stream)
{
int ret=-1;
if (stream!=NULL)
@@ -256,8 +338,7 @@
return ret;
}
-void fill_win32_filefunc (pzlib_filefunc_def)
- zlib_filefunc_def* pzlib_filefunc_def;
+void fill_win32_filefunc (zlib_filefunc_def* pzlib_filefunc_def)
{
pzlib_filefunc_def->zopen_file = win32_open_file_func;
pzlib_filefunc_def->zread_file = win32_read_file_func;
@@ -266,5 +347,43 @@
pzlib_filefunc_def->zseek_file = win32_seek_file_func;
pzlib_filefunc_def->zclose_file = win32_close_file_func;
pzlib_filefunc_def->zerror_file = win32_error_file_func;
- pzlib_filefunc_def->opaque=NULL;
+ pzlib_filefunc_def->opaque = NULL;
+}
+
+void fill_win32_filefunc64(zlib_filefunc64_def* pzlib_filefunc_def)
+{
+ pzlib_filefunc_def->zopen64_file = win32_open64_file_func;
+ pzlib_filefunc_def->zread_file = win32_read_file_func;
+ pzlib_filefunc_def->zwrite_file = win32_write_file_func;
+ pzlib_filefunc_def->ztell64_file = win32_tell64_file_func;
+ pzlib_filefunc_def->zseek64_file = win32_seek64_file_func;
+ pzlib_filefunc_def->zclose_file = win32_close_file_func;
+ pzlib_filefunc_def->zerror_file = win32_error_file_func;
+ pzlib_filefunc_def->opaque = NULL;
+}
+
+
+void fill_win32_filefunc64A(zlib_filefunc64_def* pzlib_filefunc_def)
+{
+ pzlib_filefunc_def->zopen64_file = win32_open64_file_funcA;
+ pzlib_filefunc_def->zread_file = win32_read_file_func;
+ pzlib_filefunc_def->zwrite_file = win32_write_file_func;
+ pzlib_filefunc_def->ztell64_file = win32_tell64_file_func;
+ pzlib_filefunc_def->zseek64_file = win32_seek64_file_func;
+ pzlib_filefunc_def->zclose_file = win32_close_file_func;
+ pzlib_filefunc_def->zerror_file = win32_error_file_func;
+ pzlib_filefunc_def->opaque = NULL;
+}
+
+
+void fill_win32_filefunc64W(zlib_filefunc64_def* pzlib_filefunc_def)
+{
+ pzlib_filefunc_def->zopen64_file = win32_open64_file_funcW;
+ pzlib_filefunc_def->zread_file = win32_read_file_func;
+ pzlib_filefunc_def->zwrite_file = win32_write_file_func;
+ pzlib_filefunc_def->ztell64_file = win32_tell64_file_func;
+ pzlib_filefunc_def->zseek64_file = win32_seek64_file_func;
+ pzlib_filefunc_def->zclose_file = win32_close_file_func;
+ pzlib_filefunc_def->zerror_file = win32_error_file_func;
+ pzlib_filefunc_def->opaque = NULL;
}
diff --git a/contrib/minizip/iowin32.h b/contrib/minizip/iowin32.h
index a3a437a..0ca0969 100644
--- a/contrib/minizip/iowin32.h
+++ b/contrib/minizip/iowin32.h
@@ -1,10 +1,14 @@
/* iowin32.h -- IO base function header for compress/uncompress .zip
- files using zlib + zip or unzip API
- This IO API version uses the Win32 API (for Microsoft Windows)
+ Version 1.1, February 14h, 2010
+ part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html )
- Version 1.01e, February 12th, 2005
+ Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html )
- Copyright (C) 1998-2005 Gilles Vollant
+ Modifications for Zip64 support
+ Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com )
+
+ For more info read MiniZip_info.txt
+
*/
#include <windows.h>
@@ -15,6 +19,9 @@
#endif
void fill_win32_filefunc OF((zlib_filefunc_def* pzlib_filefunc_def));
+void fill_win32_filefunc64 OF((zlib_filefunc64_def* pzlib_filefunc_def));
+void fill_win32_filefunc64A OF((zlib_filefunc64_def* pzlib_filefunc_def));
+void fill_win32_filefunc64W OF((zlib_filefunc64_def* pzlib_filefunc_def));
#ifdef __cplusplus
}
diff --git a/contrib/minizip/miniunz.c b/contrib/minizip/miniunz.c
index f599938..9ed009f 100644
--- a/contrib/minizip/miniunz.c
+++ b/contrib/minizip/miniunz.c
@@ -1,10 +1,31 @@
/*
miniunz.c
- Version 1.01e, February 12th, 2005
+ Version 1.1, February 14h, 2010
+ sample part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html )
- Copyright (C) 1998-2005 Gilles Vollant
+ Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html )
+
+ Modifications of Unzip for Zip64
+ Copyright (C) 2007-2008 Even Rouault
+
+ Modifications for Zip64 support on both zip and unzip
+ Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com )
*/
+#ifndef _WIN32
+ #ifndef __USE_FILE_OFFSET64
+ #define __USE_FILE_OFFSET64
+ #endif
+ #ifndef __USE_LARGEFILE64
+ #define __USE_LARGEFILE64
+ #endif
+ #ifndef _LARGEFILE64_SOURCE
+ #define _LARGEFILE64_SOURCE
+ #endif
+ #ifndef _FILE_OFFSET_BIT
+ #define _FILE_OFFSET_BIT 64
+ #endif
+#endif
#include <stdio.h>
#include <stdlib.h>
@@ -27,7 +48,7 @@
#define WRITEBUFFERSIZE (8192)
#define MAXFILENAME (256)
-#ifdef WIN32
+#ifdef _WIN32
#define USEWIN32IOAPI
#include "iowin32.h"
#endif
@@ -51,11 +72,11 @@
uLong dosdate;
tm_unz tmu_date;
{
-#ifdef WIN32
+#ifdef _WIN32
HANDLE hFile;
FILETIME ftm,ftLocal,ftCreate,ftLastAcc,ftLastWrite;
- hFile = CreateFile(filename,GENERIC_READ | GENERIC_WRITE,
+ hFile = CreateFileA(filename,GENERIC_READ | GENERIC_WRITE,
0,NULL,OPEN_EXISTING,0,NULL);
GetFileTime(hFile,&ftCreate,&ftLastAcc,&ftLastWrite);
DosDateTimeToFileTime((WORD)(dosdate>>16),(WORD)dosdate,&ftLocal);
@@ -91,8 +112,8 @@
const char* dirname;
{
int ret=0;
-#ifdef WIN32
- ret = mkdir(dirname);
+#ifdef _WIN32
+ ret = _mkdir(dirname);
#else
#ifdef unix
ret = mkdir (dirname,0775);
@@ -112,6 +133,11 @@
return 0;
buffer = (char*)malloc(len+1);
+ if (buffer==NULL)
+ {
+ printf("Error allocating memory\n");
+ return UNZ_INTERNALERROR;
+ }
strcpy(buffer,newdir);
if (buffer[len-1] == '/') {
@@ -164,34 +190,61 @@
" -p extract crypted file using password\n\n");
}
+void Display64BitsSize(ZPOS64_T n, int size_char)
+{
+ /* to avoid compatibility problem , we do here the conversion */
+ char number[21];
+ int offset=19;
+ int pos_string = 19;
+ number[20]=0;
+ for (;;) {
+ number[offset]=(char)((n%10)+'0');
+ if (number[offset] != '0')
+ pos_string=offset;
+ n/=10;
+ if (offset==0)
+ break;
+ offset--;
+ }
+ {
+ int size_display_string = 19-pos_string;
+ while (size_char > size_display_string)
+ {
+ size_char--;
+ printf(" ");
+ }
+ }
+
+ printf("%s",&number[pos_string]);
+}
int do_list(uf)
unzFile uf;
{
uLong i;
- unz_global_info gi;
+ unz_global_info64 gi;
int err;
- err = unzGetGlobalInfo (uf,&gi);
+ err = unzGetGlobalInfo64(uf,&gi);
if (err!=UNZ_OK)
printf("error %d with zipfile in unzGetGlobalInfo \n",err);
- printf(" Length Method Size Ratio Date Time CRC-32 Name\n");
- printf(" ------ ------ ---- ----- ---- ---- ------ ----\n");
+ printf(" Length Method Size Ratio Date Time CRC-32 Name\n");
+ printf(" ------ ------ ---- ----- ---- ---- ------ ----\n");
for (i=0;i<gi.number_entry;i++)
{
char filename_inzip[256];
- unz_file_info file_info;
+ unz_file_info64 file_info;
uLong ratio=0;
const char *string_method;
char charCrypt=' ';
- err = unzGetCurrentFileInfo(uf,&file_info,filename_inzip,sizeof(filename_inzip),NULL,0,NULL,0);
+ err = unzGetCurrentFileInfo64(uf,&file_info,filename_inzip,sizeof(filename_inzip),NULL,0,NULL,0);
if (err!=UNZ_OK)
{
printf("error %d with zipfile in unzGetCurrentFileInfo\n",err);
break;
}
if (file_info.uncompressed_size>0)
- ratio = (file_info.compressed_size*100)/file_info.uncompressed_size;
+ ratio = (uLong)((file_info.compressed_size*100)/file_info.uncompressed_size);
/* display a '*' if the file is crypted */
if ((file_info.flag & 1) != 0)
@@ -211,12 +264,17 @@
string_method="Defl:F"; /* 2:fast , 3 : extra fast*/
}
else
+ if (file_info.compression_method==Z_BZIP2ED)
+ {
+ string_method="BZip2 ";
+ }
+ else
string_method="Unkn. ";
- printf("%7lu %6s%c%7lu %3lu%% %2.2lu-%2.2lu-%2.2lu %2.2lu:%2.2lu %8.8lx %s\n",
- file_info.uncompressed_size,string_method,
- charCrypt,
- file_info.compressed_size,
+ Display64BitsSize(file_info.uncompressed_size,7);
+ printf(" %6s%c",string_method,charCrypt);
+ Display64BitsSize(file_info.compressed_size,7);
+ printf(" %3lu%% %2.2lu-%2.2lu-%2.2lu %2.2lu:%2.2lu %8.8lx %s\n",
ratio,
(uLong)file_info.tmu_date.tm_mon + 1,
(uLong)file_info.tmu_date.tm_mday,
@@ -252,9 +310,9 @@
void* buf;
uInt size_buf;
- unz_file_info file_info;
+ unz_file_info64 file_info;
uLong ratio=0;
- err = unzGetCurrentFileInfo(uf,&file_info,filename_inzip,sizeof(filename_inzip),NULL,0,NULL,0);
+ err = unzGetCurrentFileInfo64(uf,&file_info,filename_inzip,sizeof(filename_inzip),NULL,0,NULL,0);
if (err!=UNZ_OK)
{
@@ -306,7 +364,7 @@
{
char rep=0;
FILE* ftestexist;
- ftestexist = fopen(write_filename,"rb");
+ ftestexist = fopen64(write_filename,"rb");
if (ftestexist!=NULL)
{
fclose(ftestexist);
@@ -317,7 +375,7 @@
printf("The file %s exists. Overwrite ? [y]es, [n]o, [A]ll: ",write_filename);
ret = scanf("%1s",answer);
- if (ret != 1)
+ if (ret != 1)
{
exit(EXIT_FAILURE);
}
@@ -337,7 +395,7 @@
if ((skip==0) && (err==UNZ_OK))
{
- fout=fopen(write_filename,"wb");
+ fout=fopen64(write_filename,"wb");
/* some zipfile don't contain directory alone before file */
if ((fout==NULL) && ((*popt_extract_without_path)==0) &&
@@ -347,7 +405,7 @@
*(filename_withoutpath-1)='\0';
makedir(write_filename);
*(filename_withoutpath-1)=c;
- fout=fopen(write_filename,"wb");
+ fout=fopen64(write_filename,"wb");
}
if (fout==NULL)
@@ -409,11 +467,11 @@
const char* password;
{
uLong i;
- unz_global_info gi;
+ unz_global_info64 gi;
int err;
FILE* fout=NULL;
- err = unzGetGlobalInfo (uf,&gi);
+ err = unzGetGlobalInfo64(uf,&gi);
if (err!=UNZ_OK)
printf("error %d with zipfile in unzGetGlobalInfo \n",err);
@@ -470,6 +528,7 @@
const char *password=NULL;
char filename_try[MAXFILENAME+16] = "";
int i;
+ int ret_value=0;
int opt_do_list=0;
int opt_do_extract=1;
int opt_do_extract_withoutpath=0;
@@ -532,7 +591,7 @@
{
# ifdef USEWIN32IOAPI
- zlib_filefunc_def ffunc;
+ zlib_filefunc64_def ffunc;
# endif
strncpy(filename_try, zipfilename,MAXFILENAME-1);
@@ -540,18 +599,18 @@
filename_try[ MAXFILENAME ] = '\0';
# ifdef USEWIN32IOAPI
- fill_win32_filefunc(&ffunc);
- uf = unzOpen2(zipfilename,&ffunc);
+ fill_win32_filefunc64A(&ffunc);
+ uf = unzOpen2_64(zipfilename,&ffunc);
# else
- uf = unzOpen(zipfilename);
+ uf = unzOpen64(zipfilename);
# endif
if (uf==NULL)
{
strcat(filename_try,".zip");
# ifdef USEWIN32IOAPI
- uf = unzOpen2(filename_try,&ffunc);
+ uf = unzOpen2_64(filename_try,&ffunc);
# else
- uf = unzOpen(filename_try);
+ uf = unzOpen64(filename_try);
# endif
}
}
@@ -564,22 +623,26 @@
printf("%s opened\n",filename_try);
if (opt_do_list==1)
- return do_list(uf);
+ ret_value = do_list(uf);
else if (opt_do_extract==1)
{
- if (opt_extractdir && chdir(dirname))
+#ifdef _WIN32
+ if (opt_extractdir && _chdir(dirname))
+#else
+ if (opt_extractdir && chdir(dirname))
+#endif
{
printf("Error changing into %s, aborting\n", dirname);
exit(-1);
}
if (filename_to_extract == NULL)
- return do_extract(uf,opt_do_extract_withoutpath,opt_overwrite,password);
+ ret_value = do_extract(uf, opt_do_extract_withoutpath, opt_overwrite, password);
else
- return do_extract_onefile(uf,filename_to_extract,
- opt_do_extract_withoutpath,opt_overwrite,password);
+ ret_value = do_extract_onefile(uf, filename_to_extract, opt_do_extract_withoutpath, opt_overwrite, password);
}
- unzCloseCurrentFile(uf);
- return 0;
+ unzClose(uf);
+
+ return ret_value;
}
diff --git a/contrib/minizip/minizip.c b/contrib/minizip/minizip.c
index f2dfecd..7a4fa5a 100644
--- a/contrib/minizip/minizip.c
+++ b/contrib/minizip/minizip.c
@@ -1,10 +1,33 @@
/*
minizip.c
- Version 1.01e, February 12th, 2005
+ Version 1.1, February 14h, 2010
+ sample part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html )
- Copyright (C) 1998-2005 Gilles Vollant
+ Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html )
+
+ Modifications of Unzip for Zip64
+ Copyright (C) 2007-2008 Even Rouault
+
+ Modifications for Zip64 support on both zip and unzip
+ Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com )
*/
+
+#ifndef _WIN32
+ #ifndef __USE_FILE_OFFSET64
+ #define __USE_FILE_OFFSET64
+ #endif
+ #ifndef __USE_LARGEFILE64
+ #define __USE_LARGEFILE64
+ #endif
+ #ifndef _LARGEFILE64_SOURCE
+ #define _LARGEFILE64_SOURCE
+ #endif
+ #ifndef _FILE_OFFSET_BIT
+ #define _FILE_OFFSET_BIT 64
+ #endif
+#endif
+
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
@@ -24,9 +47,9 @@
#include "zip.h"
-#ifdef WIN32
-#define USEWIN32IOAPI
-#include "iowin32.h"
+#ifdef _WIN32
+ #define USEWIN32IOAPI
+ #include "iowin32.h"
#endif
@@ -34,7 +57,7 @@
#define WRITEBUFFERSIZE (16384)
#define MAXFILENAME (256)
-#ifdef WIN32
+#ifdef _WIN32
uLong filetime(f, tmzip, dt)
char *f; /* name of file to get info on */
tm_zip *tmzip; /* return value: access, modific. and creation times */
@@ -44,9 +67,9 @@
{
FILETIME ftLocal;
HANDLE hFind;
- WIN32_FIND_DATA ff32;
+ WIN32_FIND_DATAA ff32;
- hFind = FindFirstFile(f,&ff32);
+ hFind = FindFirstFileA(f,&ff32);
if (hFind != INVALID_HANDLE_VALUE)
{
FileTimeToLocalFileTime(&(ff32.ftLastWriteTime),&ftLocal);
@@ -119,7 +142,7 @@
{
FILE* ftestexist;
int ret = 1;
- ftestexist = fopen(filename,"rb");
+ ftestexist = fopen64(filename,"rb");
if (ftestexist==NULL)
ret = 0;
else
@@ -129,18 +152,19 @@
void do_banner()
{
- printf("MiniZip 1.01b, demo of zLib + Zip package written by Gilles Vollant\n");
- printf("more info at http://www.winimage.com/zLibDll/unzip.html\n\n");
+ printf("MiniZip 1.1, demo of zLib + MiniZip64 package, written by Gilles Vollant\n");
+ printf("more info on MiniZip at http://www.winimage.com/zLibDll/minizip.html\n\n");
}
void do_help()
{
- printf("Usage : minizip [-o] [-a] [-0 to -9] [-p password] file.zip [files_to_add]\n\n" \
+ printf("Usage : minizip [-o] [-a] [-0 to -9] [-p password] [-j] file.zip [files_to_add]\n\n" \
" -o Overwrite existing file.zip\n" \
" -a Append to existing file.zip\n" \
" -0 Store only\n" \
" -1 Compress faster\n" \
- " -9 Compress better\n\n");
+ " -9 Compress better\n\n" \
+ " -j exclude path. store only the file name.\n\n");
}
/* calculate the CRC32 of a file,
@@ -149,7 +173,7 @@
{
unsigned long calculate_crc=0;
int err=ZIP_OK;
- FILE * fin = fopen(filenameinzip,"rb");
+ FILE * fin = fopen64(filenameinzip,"rb");
unsigned long size_read = 0;
unsigned long total_read = 0;
if (fin==NULL)
@@ -179,10 +203,33 @@
fclose(fin);
*result_crc=calculate_crc;
- printf("file %s crc %x\n",filenameinzip,calculate_crc);
+ printf("file %s crc %lx\n", filenameinzip, calculate_crc);
return err;
}
+int isLargeFile(const char* filename)
+{
+ int largeFile = 0;
+ ZPOS64_T pos = 0;
+ FILE* pFile = fopen64(filename, "rb");
+
+ if(pFile != NULL)
+ {
+ int n = fseeko64(pFile, 0, SEEK_END);
+
+ pos = ftello64(pFile);
+
+ printf("File : %s is %lld bytes\n", filename, pos);
+
+ if(pos >= 0xffffffff)
+ largeFile = 1;
+
+ fclose(pFile);
+ }
+
+ return largeFile;
+}
+
int main(argc,argv)
int argc;
char *argv[];
@@ -190,6 +237,7 @@
int i;
int opt_overwrite=0;
int opt_compress_level=Z_DEFAULT_COMPRESSION;
+ int opt_exclude_path=0;
int zipfilenamearg = 0;
char filename_try[MAXFILENAME+16];
int zipok;
@@ -222,6 +270,8 @@
opt_overwrite = 2;
if ((c>='0') && (c<='9'))
opt_compress_level = c-'0';
+ if ((c=='j') || (c=='J'))
+ opt_exclude_path = 1;
if (((c=='p') || (c=='P')) && (i+1<argc))
{
@@ -231,8 +281,12 @@
}
}
else
+ {
if (zipfilenamearg == 0)
+ {
zipfilenamearg = i ;
+ }
+ }
}
}
@@ -245,7 +299,9 @@
}
if (zipfilenamearg==0)
+ {
zipok=0;
+ }
else
{
int i,len;
@@ -302,11 +358,11 @@
zipFile zf;
int errclose;
# ifdef USEWIN32IOAPI
- zlib_filefunc_def ffunc;
- fill_win32_filefunc(&ffunc);
- zf = zipOpen2(filename_try,(opt_overwrite==2) ? 2 : 0,NULL,&ffunc);
+ zlib_filefunc64_def ffunc;
+ fill_win32_filefunc64A(&ffunc);
+ zf = zipOpen2_64(filename_try,(opt_overwrite==2) ? 2 : 0,NULL,&ffunc);
# else
- zf = zipOpen(filename_try,(opt_overwrite==2) ? 2 : 0);
+ zf = zipOpen64(filename_try,(opt_overwrite==2) ? 2 : 0);
# endif
if (zf == NULL)
@@ -329,8 +385,10 @@
FILE * fin;
int size_read;
const char* filenameinzip = argv[i];
+ const char *savefilenameinzip;
zip_fileinfo zi;
unsigned long crcFile=0;
+ int zip64 = 0;
zi.tmz_date.tm_sec = zi.tmz_date.tm_min = zi.tmz_date.tm_hour =
zi.tmz_date.tm_mday = zi.tmz_date.tm_mon = zi.tmz_date.tm_year = 0;
@@ -348,19 +406,48 @@
if ((password != NULL) && (err==ZIP_OK))
err = getFileCrc(filenameinzip,buf,size_buf,&crcFile);
- err = zipOpenNewFileInZip3(zf,filenameinzip,&zi,
+ zip64 = isLargeFile(filenameinzip);
+
+ /* The path name saved, should not include a leading slash. */
+ /*if it did, windows/xp and dynazip couldn't read the zip file. */
+ savefilenameinzip = filenameinzip;
+ while( savefilenameinzip[0] == '\\' || savefilenameinzip[0] == '/' )
+ {
+ savefilenameinzip++;
+ }
+
+ /*should the zip file contain any path at all?*/
+ if( opt_exclude_path )
+ {
+ const char *tmpptr;
+ const char *lastslash = 0;
+ for( tmpptr = savefilenameinzip; *tmpptr; tmpptr++)
+ {
+ if( *tmpptr == '\\' || *tmpptr == '/')
+ {
+ lastslash = tmpptr;
+ }
+ }
+ if( lastslash != NULL )
+ {
+ savefilenameinzip = lastslash+1; // base filename follows last slash.
+ }
+ }
+
+ /**/
+ err = zipOpenNewFileInZip3_64(zf,savefilenameinzip,&zi,
NULL,0,NULL,0,NULL /* comment*/,
(opt_compress_level != 0) ? Z_DEFLATED : 0,
opt_compress_level,0,
/* -MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY, */
-MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY,
- password,crcFile);
+ password,crcFile, zip64);
if (err != ZIP_OK)
printf("error in opening %s in zipfile\n",filenameinzip);
else
{
- fin = fopen(filenameinzip,"rb");
+ fin = fopen64(filenameinzip,"rb");
if (fin==NULL)
{
err=ZIP_ERRNO;
diff --git a/contrib/minizip/mztools.c b/contrib/minizip/mztools.c
index bc19436..d5b8859 100644
--- a/contrib/minizip/mztools.c
+++ b/contrib/minizip/mztools.c
@@ -8,7 +8,6 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
-
#if defined(USE_SYSTEM_ZLIB)
#include <zlib.h>
#else
@@ -67,7 +66,7 @@
unsigned int fnsize = READ_16(header + 26); /* file name length */
unsigned int extsize = READ_16(header + 28); /* extra field length */
filename[0] = extra[0] = '\0';
-
+
/* Header */
if (fwrite(header, 1, 30, fpOut) == 30) {
offset += 30;
@@ -75,7 +74,7 @@
err = Z_ERRNO;
break;
}
-
+
/* Filename */
if (fnsize > 0) {
if (fread(filename, 1, fnsize, fpZip) == fnsize) {
@@ -108,7 +107,7 @@
break;
}
}
-
+
/* Data */
{
int dataSize = cpsize;
@@ -138,7 +137,7 @@
}
}
}
-
+
/* Central directory entry */
{
char header[46];
@@ -164,7 +163,7 @@
/* Header */
if (fwrite(header, 1, 46, fpOutCD) == 46) {
offsetCD += 46;
-
+
/* Filename */
if (fnsize > 0) {
if (fwrite(filename, 1, fnsize, fpOutCD) == fnsize) {
@@ -177,7 +176,7 @@
err = Z_STREAM_ERROR;
break;
}
-
+
/* Extra field */
if (extsize > 0) {
if (fwrite(extra, 1, extsize, fpOutCD) == extsize) {
@@ -187,7 +186,7 @@
break;
}
}
-
+
/* Comment field */
if (comsize > 0) {
if ((int)fwrite(comment, 1, comsize, fpOutCD) == comsize) {
@@ -197,8 +196,8 @@
break;
}
}
-
-
+
+
} else {
err = Z_ERRNO;
break;
@@ -230,17 +229,17 @@
WRITE_32(header + 12, offsetCD); /* size of CD */
WRITE_32(header + 16, offset); /* offset to CD */
WRITE_16(header + 20, comsize); /* comment */
-
+
/* Header */
if (fwrite(header, 1, 22, fpOutCD) == 22) {
-
+
/* Comment field */
if (comsize > 0) {
if ((int)fwrite(comment, 1, comsize, fpOutCD) != comsize) {
err = Z_ERRNO;
}
}
-
+
} else {
err = Z_ERRNO;
}
@@ -262,14 +261,14 @@
fclose(fpOutCD);
}
}
-
+
/* Close */
fclose(fpZip);
fclose(fpOut);
-
+
/* Wipe temporary file */
(void)remove(fileOutTmp);
-
+
/* Number of recovered entries */
if (err == Z_OK) {
if (nRecovered != NULL) {
diff --git a/contrib/minizip/mztools.h b/contrib/minizip/mztools.h
index 4af7a46..9731f19 100644
--- a/contrib/minizip/mztools.h
+++ b/contrib/minizip/mztools.h
@@ -11,22 +11,24 @@
extern "C" {
#endif
+#ifndef _ZLIB_H
#if defined(USE_SYSTEM_ZLIB)
#include <zlib.h>
#else
#include "third_party/zlib/zlib.h"
#endif
+#endif
#include "unzip.h"
-/* Repair a ZIP file (missing central directory)
+/* Repair a ZIP file (missing central directory)
file: file to recover
fileOut: output file after recovery
fileOutTmp: temporary file name used for recovery
*/
-extern int ZEXPORT unzRepair(const char* file,
- const char* fileOut,
- const char* fileOutTmp,
+extern int ZEXPORT unzRepair(const char* file,
+ const char* fileOut,
+ const char* fileOutTmp,
uLong* nRecovered,
uLong* bytesRecovered);
diff --git a/contrib/minizip/unzip.c b/contrib/minizip/unzip.c
index 6f95973..4289207 100644
--- a/contrib/minizip/unzip.c
+++ b/contrib/minizip/unzip.c
@@ -1,43 +1,77 @@
/* unzip.c -- IO for uncompress .zip files using zlib
- Version 1.01e, February 12th, 2005
+ Version 1.1, February 14h, 2010
+ part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html )
- Copyright (C) 1998-2005 Gilles Vollant
+ Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html )
- Read unzip.h for more info
-*/
+ Modifications of Unzip for Zip64
+ Copyright (C) 2007-2008 Even Rouault
-/* Decryption code comes from crypt.c by Info-ZIP but has been greatly reduced in terms of
-compatibility with older software. The following is from the original crypt.c. Code
-woven in by Terry Thorsen 1/2003.
-*/
-/*
+ Modifications for Zip64 support on both zip and unzip
+ Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com )
+
+ For more info read MiniZip_info.txt
+
+
+ ------------------------------------------------------------------------------------
+ Decryption code comes from crypt.c by Info-ZIP but has been greatly reduced in terms of
+ compatibility with older software. The following is from the original crypt.c.
+ Code woven in by Terry Thorsen 1/2003.
+
Copyright (c) 1990-2000 Info-ZIP. All rights reserved.
See the accompanying file LICENSE, version 2000-Apr-09 or later
(the contents of which are also included in zip.h) for terms of use.
If, for some reason, all these files are missing, the Info-ZIP license
also may be found at: ftp://ftp.info-zip.org/pub/infozip/license.html
-*/
-/*
- crypt.c (full version) by Info-ZIP. Last revised: [see crypt.h]
+
+ crypt.c (full version) by Info-ZIP. Last revised: [see crypt.h]
The encryption/decryption parts of this source code (as opposed to the
non-echoing password parts) were originally written in Europe. The
whole source package can be freely distributed, including from the USA.
(Prior to January 2000, re-export from the US was a violation of US law.)
- */
-/*
- This encryption code is a direct transcription of the algorithm from
+ This encryption code is a direct transcription of the algorithm from
Roger Schlafly, described by Phil Katz in the file appnote.txt. This
file (appnote.txt) is distributed with the PKZIP program (even in the
version without encryption capabilities).
- */
+
+ ------------------------------------------------------------------------------------
+
+ Changes in unzip.c
+
+ 2007-2008 - Even Rouault - Addition of cpl_unzGetCurrentFileZStreamPos
+ 2007-2008 - Even Rouault - Decoration of symbol names unz* -> cpl_unz*
+ 2007-2008 - Even Rouault - Remove old C style function prototypes
+ 2007-2008 - Even Rouault - Add unzip support for ZIP64
+
+ Copyright (C) 2007-2008 Even Rouault
+
+
+ Oct-2009 - Mathias Svensson - Removed cpl_* from symbol names (Even Rouault added them but since this is now moved to a new project (minizip64) I renamed them again).
+ Oct-2009 - Mathias Svensson - Fixed problem if uncompressed size was > 4G and compressed size was <4G
+ should only read the compressed/uncompressed size from the Zip64 format if
+ the size from normal header was 0xFFFFFFFF
+ Oct-2009 - Mathias Svensson - Applied some bug fixes from paches recived from Gilles Vollant
+ Oct-2009 - Mathias Svensson - Applied support to unzip files with compression mathod BZIP2 (bzip2 lib is required)
+ Patch created by Daniel Borca
+
+ Jan-2010 - back to unzip and minizip 1.0 name scheme, with compatibility layer
+
+ Copyright (C) 1998 - 2010 Gilles Vollant, Even Rouault, Mathias Svensson
+
+*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
+
+#ifndef NOUNCRYPT
+ #define NOUNCRYPT
+#endif
+
#if defined(USE_SYSTEM_ZLIB)
#include <zlib.h>
#else
@@ -89,16 +123,14 @@
#define SIZEZIPLOCALHEADER (0x1e)
-
-
const char unz_copyright[] =
" unzip 1.01 Copyright 1998-2004 Gilles Vollant - http://www.winimage.com/zLibDll";
/* unz_file_info_interntal contain internal info about a file in zipfile*/
-typedef struct unz_file_info_internal_s
+typedef struct unz_file_info64_internal_s
{
- uLong offset_curfile;/* relative offset of local header 4 bytes */
-} unz_file_info_internal;
+ ZPOS64_T offset_curfile;/* relative offset of local header 8 bytes */
+} unz_file_info64_internal;
/* file_in_zip_read_info_s contain internal information about a file in zipfile,
@@ -108,52 +140,61 @@
char *read_buffer; /* internal buffer for compressed data */
z_stream stream; /* zLib stream structure for inflate */
- uLong pos_in_zipfile; /* position in byte on the zipfile, for fseek*/
+#ifdef HAVE_BZIP2
+ bz_stream bstream; /* bzLib stream structure for bziped */
+#endif
+
+ ZPOS64_T pos_in_zipfile; /* position in byte on the zipfile, for fseek*/
uLong stream_initialised; /* flag set if stream structure is initialised*/
- uLong offset_local_extrafield;/* offset of the local extra field */
+ ZPOS64_T offset_local_extrafield;/* offset of the local extra field */
uInt size_local_extrafield;/* size of the local extra field */
- uLong pos_local_extrafield; /* position in the local extra field in read*/
+ ZPOS64_T pos_local_extrafield; /* position in the local extra field in read*/
+ ZPOS64_T total_out_64;
uLong crc32; /* crc32 of all data uncompressed */
uLong crc32_wait; /* crc32 we must obtain after decompress all */
- uLong rest_read_compressed; /* number of byte to be decompressed */
- uLong rest_read_uncompressed;/*number of byte to be obtained after decomp*/
- zlib_filefunc_def z_filefunc;
+ ZPOS64_T rest_read_compressed; /* number of byte to be decompressed */
+ ZPOS64_T rest_read_uncompressed;/*number of byte to be obtained after decomp*/
+ zlib_filefunc64_32_def z_filefunc;
voidpf filestream; /* io structore of the zipfile */
uLong compression_method; /* compression method (0==store) */
- uLong byte_before_the_zipfile;/* byte before the zipfile, (>0 for sfx)*/
+ ZPOS64_T byte_before_the_zipfile;/* byte before the zipfile, (>0 for sfx)*/
int raw;
-} file_in_zip_read_info_s;
+} file_in_zip64_read_info_s;
-/* unz_s contain internal information about the zipfile
+/* unz64_s contain internal information about the zipfile
*/
typedef struct
{
- zlib_filefunc_def z_filefunc;
+ zlib_filefunc64_32_def z_filefunc;
+ int is64bitOpenFunction;
voidpf filestream; /* io structore of the zipfile */
- unz_global_info gi; /* public global information */
- uLong byte_before_the_zipfile;/* byte before the zipfile, (>0 for sfx)*/
- uLong num_file; /* number of the current file in the zipfile*/
- uLong pos_in_central_dir; /* pos of the current file in the central dir*/
- uLong current_file_ok; /* flag about the usability of the current file*/
- uLong central_pos; /* position of the beginning of the central dir*/
+ unz_global_info64 gi; /* public global information */
+ ZPOS64_T byte_before_the_zipfile;/* byte before the zipfile, (>0 for sfx)*/
+ ZPOS64_T num_file; /* number of the current file in the zipfile*/
+ ZPOS64_T pos_in_central_dir; /* pos of the current file in the central dir*/
+ ZPOS64_T current_file_ok; /* flag about the usability of the current file*/
+ ZPOS64_T central_pos; /* position of the beginning of the central dir*/
- uLong size_central_dir; /* size of the central directory */
- uLong offset_central_dir; /* offset of start of central directory with
+ ZPOS64_T size_central_dir; /* size of the central directory */
+ ZPOS64_T offset_central_dir; /* offset of start of central directory with
respect to the starting disk number */
- unz_file_info cur_file_info; /* public info about the current file in zip*/
- unz_file_info_internal cur_file_info_internal; /* private info about it*/
- file_in_zip_read_info_s* pfile_in_zip_read; /* structure about the current
+ unz_file_info64 cur_file_info; /* public info about the current file in zip*/
+ unz_file_info64_internal cur_file_info_internal; /* private info about it*/
+ file_in_zip64_read_info_s* pfile_in_zip_read; /* structure about the current
file if we are decompressing it */
int encrypted;
+
+ int isZip64;
+
# ifndef NOUNCRYPT
unsigned long keys[3]; /* keys defining the pseudo-random sequence */
const unsigned long* pcrc_32_tab;
# endif
-} unz_s;
+} unz64_s;
#ifndef NOUNCRYPT
@@ -167,18 +208,15 @@
*/
-local int unzlocal_getByte OF((
- const zlib_filefunc_def* pzlib_filefunc_def,
+local int unz64local_getByte OF((
+ const zlib_filefunc64_32_def* pzlib_filefunc_def,
voidpf filestream,
int *pi));
-local int unzlocal_getByte(pzlib_filefunc_def,filestream,pi)
- const zlib_filefunc_def* pzlib_filefunc_def;
- voidpf filestream;
- int *pi;
+local int unz64local_getByte(const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, int *pi)
{
unsigned char c;
- int err = (int)ZREAD(*pzlib_filefunc_def,filestream,&c,1);
+ int err = (int)ZREAD64(*pzlib_filefunc_def,filestream,&c,1);
if (err==1)
{
*pi = (int)c;
@@ -186,7 +224,7 @@
}
else
{
- if (ZERROR(*pzlib_filefunc_def,filestream))
+ if (ZERROR64(*pzlib_filefunc_def,filestream))
return UNZ_ERRNO;
else
return UNZ_EOF;
@@ -197,26 +235,25 @@
/* ===========================================================================
Reads a long in LSB order from the given gz_stream. Sets
*/
-local int unzlocal_getShort OF((
- const zlib_filefunc_def* pzlib_filefunc_def,
+local int unz64local_getShort OF((
+ const zlib_filefunc64_32_def* pzlib_filefunc_def,
voidpf filestream,
uLong *pX));
-local int unzlocal_getShort (pzlib_filefunc_def,filestream,pX)
- const zlib_filefunc_def* pzlib_filefunc_def;
- voidpf filestream;
- uLong *pX;
+local int unz64local_getShort (const zlib_filefunc64_32_def* pzlib_filefunc_def,
+ voidpf filestream,
+ uLong *pX)
{
uLong x ;
- int i;
+ int i = 0;
int err;
- err = unzlocal_getByte(pzlib_filefunc_def,filestream,&i);
+ err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
x = (uLong)i;
if (err==UNZ_OK)
- err = unzlocal_getByte(pzlib_filefunc_def,filestream,&i);
- x += ((uLong)i)<<8;
+ err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
+ x |= ((uLong)i)<<8;
if (err==UNZ_OK)
*pX = x;
@@ -225,33 +262,32 @@
return err;
}
-local int unzlocal_getLong OF((
- const zlib_filefunc_def* pzlib_filefunc_def,
+local int unz64local_getLong OF((
+ const zlib_filefunc64_32_def* pzlib_filefunc_def,
voidpf filestream,
uLong *pX));
-local int unzlocal_getLong (pzlib_filefunc_def,filestream,pX)
- const zlib_filefunc_def* pzlib_filefunc_def;
- voidpf filestream;
- uLong *pX;
+local int unz64local_getLong (const zlib_filefunc64_32_def* pzlib_filefunc_def,
+ voidpf filestream,
+ uLong *pX)
{
uLong x ;
- int i;
+ int i = 0;
int err;
- err = unzlocal_getByte(pzlib_filefunc_def,filestream,&i);
+ err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
x = (uLong)i;
if (err==UNZ_OK)
- err = unzlocal_getByte(pzlib_filefunc_def,filestream,&i);
- x += ((uLong)i)<<8;
+ err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
+ x |= ((uLong)i)<<8;
if (err==UNZ_OK)
- err = unzlocal_getByte(pzlib_filefunc_def,filestream,&i);
- x += ((uLong)i)<<16;
+ err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
+ x |= ((uLong)i)<<16;
if (err==UNZ_OK)
- err = unzlocal_getByte(pzlib_filefunc_def,filestream,&i);
+ err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
x += ((uLong)i)<<24;
if (err==UNZ_OK)
@@ -261,11 +297,60 @@
return err;
}
+local int unz64local_getLong64 OF((
+ const zlib_filefunc64_32_def* pzlib_filefunc_def,
+ voidpf filestream,
+ ZPOS64_T *pX));
+
+
+local int unz64local_getLong64 (const zlib_filefunc64_32_def* pzlib_filefunc_def,
+ voidpf filestream,
+ ZPOS64_T *pX)
+{
+ ZPOS64_T x ;
+ int i = 0;
+ int err;
+
+ err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
+ x = (ZPOS64_T)i;
+
+ if (err==UNZ_OK)
+ err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
+ x |= ((ZPOS64_T)i)<<8;
+
+ if (err==UNZ_OK)
+ err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
+ x |= ((ZPOS64_T)i)<<16;
+
+ if (err==UNZ_OK)
+ err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
+ x |= ((ZPOS64_T)i)<<24;
+
+ if (err==UNZ_OK)
+ err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
+ x |= ((ZPOS64_T)i)<<32;
+
+ if (err==UNZ_OK)
+ err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
+ x |= ((ZPOS64_T)i)<<40;
+
+ if (err==UNZ_OK)
+ err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
+ x |= ((ZPOS64_T)i)<<48;
+
+ if (err==UNZ_OK)
+ err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
+ x |= ((ZPOS64_T)i)<<56;
+
+ if (err==UNZ_OK)
+ *pX = x;
+ else
+ *pX = 0;
+ return err;
+}
/* My own strcmpi / strcasecmp */
-local int strcmpcasenosensitive_internal (fileName1,fileName2)
- const char* fileName1;
- const char* fileName2;
+local int strcmpcasenosensitive_internal (const char* fileName1, const char* fileName2)
{
for (;;)
{
@@ -306,10 +391,10 @@
(like 1 on Unix, 2 on Windows)
*/
-extern int ZEXPORT unzStringFileNameCompare (fileName1,fileName2,iCaseSensitivity)
- const char* fileName1;
- const char* fileName2;
- int iCaseSensitivity;
+extern int ZEXPORT unzStringFileNameCompare (const char* fileName1,
+ const char* fileName2,
+ int iCaseSensitivity)
+
{
if (iCaseSensitivity==0)
iCaseSensitivity=CASESENSITIVITYDEFAULTVALUE;
@@ -328,25 +413,20 @@
Locate the Central directory of a zipfile (at the end, just before
the global comment)
*/
-local uLong unzlocal_SearchCentralDir OF((
- const zlib_filefunc_def* pzlib_filefunc_def,
- voidpf filestream));
-
-local uLong unzlocal_SearchCentralDir(pzlib_filefunc_def,filestream)
- const zlib_filefunc_def* pzlib_filefunc_def;
- voidpf filestream;
+local ZPOS64_T unz64local_SearchCentralDir OF((const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream));
+local ZPOS64_T unz64local_SearchCentralDir(const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream)
{
unsigned char* buf;
- uLong uSizeFile;
- uLong uBackRead;
- uLong uMaxBack=0xffff; /* maximum size of global comment */
- uLong uPosFound=0;
+ ZPOS64_T uSizeFile;
+ ZPOS64_T uBackRead;
+ ZPOS64_T uMaxBack=0xffff; /* maximum size of global comment */
+ ZPOS64_T uPosFound=0;
- if (ZSEEK(*pzlib_filefunc_def,filestream,0,ZLIB_FILEFUNC_SEEK_END) != 0)
+ if (ZSEEK64(*pzlib_filefunc_def,filestream,0,ZLIB_FILEFUNC_SEEK_END) != 0)
return 0;
- uSizeFile = ZTELL(*pzlib_filefunc_def,filestream);
+ uSizeFile = ZTELL64(*pzlib_filefunc_def,filestream);
if (uMaxBack>uSizeFile)
uMaxBack = uSizeFile;
@@ -358,7 +438,8 @@
uBackRead = 4;
while (uBackRead<uMaxBack)
{
- uLong uReadSize,uReadPos ;
+ uLong uReadSize;
+ ZPOS64_T uReadPos ;
int i;
if (uBackRead+BUFREADCOMMENT>uMaxBack)
uBackRead = uMaxBack;
@@ -367,11 +448,11 @@
uReadPos = uSizeFile-uBackRead ;
uReadSize = ((BUFREADCOMMENT+4) < (uSizeFile-uReadPos)) ?
- (BUFREADCOMMENT+4) : (uSizeFile-uReadPos);
- if (ZSEEK(*pzlib_filefunc_def,filestream,uReadPos,ZLIB_FILEFUNC_SEEK_SET)!=0)
+ (BUFREADCOMMENT+4) : (uLong)(uSizeFile-uReadPos);
+ if (ZSEEK64(*pzlib_filefunc_def,filestream,uReadPos,ZLIB_FILEFUNC_SEEK_SET)!=0)
break;
- if (ZREAD(*pzlib_filefunc_def,filestream,buf,uReadSize)!=uReadSize)
+ if (ZREAD64(*pzlib_filefunc_def,filestream,buf,uReadSize)!=uReadSize)
break;
for (i=(int)uReadSize-3; (i--)>0;)
@@ -389,6 +470,112 @@
return uPosFound;
}
+
+/*
+ Locate the Central directory 64 of a zipfile (at the end, just before
+ the global comment)
+*/
+local ZPOS64_T unz64local_SearchCentralDir64 OF((
+ const zlib_filefunc64_32_def* pzlib_filefunc_def,
+ voidpf filestream));
+
+local ZPOS64_T unz64local_SearchCentralDir64(const zlib_filefunc64_32_def* pzlib_filefunc_def,
+ voidpf filestream)
+{
+ unsigned char* buf;
+ ZPOS64_T uSizeFile;
+ ZPOS64_T uBackRead;
+ ZPOS64_T uMaxBack=0xffff; /* maximum size of global comment */
+ ZPOS64_T uPosFound=0;
+ uLong uL;
+ ZPOS64_T relativeOffset;
+
+ if (ZSEEK64(*pzlib_filefunc_def,filestream,0,ZLIB_FILEFUNC_SEEK_END) != 0)
+ return 0;
+
+
+ uSizeFile = ZTELL64(*pzlib_filefunc_def,filestream);
+
+ if (uMaxBack>uSizeFile)
+ uMaxBack = uSizeFile;
+
+ buf = (unsigned char*)ALLOC(BUFREADCOMMENT+4);
+ if (buf==NULL)
+ return 0;
+
+ uBackRead = 4;
+ while (uBackRead<uMaxBack)
+ {
+ uLong uReadSize;
+ ZPOS64_T uReadPos;
+ int i;
+ if (uBackRead+BUFREADCOMMENT>uMaxBack)
+ uBackRead = uMaxBack;
+ else
+ uBackRead+=BUFREADCOMMENT;
+ uReadPos = uSizeFile-uBackRead ;
+
+ uReadSize = ((BUFREADCOMMENT+4) < (uSizeFile-uReadPos)) ?
+ (BUFREADCOMMENT+4) : (uLong)(uSizeFile-uReadPos);
+ if (ZSEEK64(*pzlib_filefunc_def,filestream,uReadPos,ZLIB_FILEFUNC_SEEK_SET)!=0)
+ break;
+
+ if (ZREAD64(*pzlib_filefunc_def,filestream,buf,uReadSize)!=uReadSize)
+ break;
+
+ for (i=(int)uReadSize-3; (i--)>0;)
+ if (((*(buf+i))==0x50) && ((*(buf+i+1))==0x4b) &&
+ ((*(buf+i+2))==0x06) && ((*(buf+i+3))==0x07))
+ {
+ uPosFound = uReadPos+i;
+ break;
+ }
+
+ if (uPosFound!=0)
+ break;
+ }
+ TRYFREE(buf);
+ if (uPosFound == 0)
+ return 0;
+
+ /* Zip64 end of central directory locator */
+ if (ZSEEK64(*pzlib_filefunc_def,filestream, uPosFound,ZLIB_FILEFUNC_SEEK_SET)!=0)
+ return 0;
+
+ /* the signature, already checked */
+ if (unz64local_getLong(pzlib_filefunc_def,filestream,&uL)!=UNZ_OK)
+ return 0;
+
+ /* number of the disk with the start of the zip64 end of central directory */
+ if (unz64local_getLong(pzlib_filefunc_def,filestream,&uL)!=UNZ_OK)
+ return 0;
+ if (uL != 0)
+ return 0;
+
+ /* relative offset of the zip64 end of central directory record */
+ if (unz64local_getLong64(pzlib_filefunc_def,filestream,&relativeOffset)!=UNZ_OK)
+ return 0;
+
+ /* total number of disks */
+ if (unz64local_getLong(pzlib_filefunc_def,filestream,&uL)!=UNZ_OK)
+ return 0;
+ if (uL != 1)
+ return 0;
+
+ /* Goto end of central directory record */
+ if (ZSEEK64(*pzlib_filefunc_def,filestream, relativeOffset,ZLIB_FILEFUNC_SEEK_SET)!=0)
+ return 0;
+
+ /* the signature */
+ if (unz64local_getLong(pzlib_filefunc_def,filestream,&uL)!=UNZ_OK)
+ return 0;
+
+ if (uL != 0x06064b50)
+ return 0;
+
+ return relativeOffset;
+}
+
/*
Open a Zip file. path contain the full pathname (by example,
on a Windows NT computer "c:\\test\\zlib114.zip" or on an Unix computer
@@ -398,19 +585,20 @@
Else, the return value is a unzFile Handle, usable with other function
of this unzip package.
*/
-extern unzFile ZEXPORT unzOpen2 (path, pzlib_filefunc_def)
- const char *path;
- zlib_filefunc_def* pzlib_filefunc_def;
+local unzFile unzOpenInternal (const void *path,
+ zlib_filefunc64_32_def* pzlib_filefunc64_32_def,
+ int is64bitOpenFunction)
{
- unz_s us;
- unz_s *s;
- uLong central_pos,uL;
+ unz64_s us;
+ unz64_s *s;
+ ZPOS64_T central_pos;
+ uLong uL;
uLong number_disk; /* number of the current dist, used for
spaning ZIP, unsupported, always 0*/
uLong number_disk_with_CD; /* number the the disk with central dir, used
for spaning ZIP, unsupported, always 0*/
- uLong number_entry_CD; /* total number of entries in
+ ZPOS64_T number_entry_CD; /* total number of entries in
the central dir
(same than number_entry on nospan) */
@@ -419,63 +607,137 @@
if (unz_copyright[0]!=' ')
return NULL;
- if (pzlib_filefunc_def==NULL)
- fill_fopen_filefunc(&us.z_filefunc);
+ us.z_filefunc.zseek32_file = NULL;
+ us.z_filefunc.ztell32_file = NULL;
+ if (pzlib_filefunc64_32_def==NULL)
+ fill_fopen64_filefunc(&us.z_filefunc.zfile_func64);
else
- us.z_filefunc = *pzlib_filefunc_def;
+ us.z_filefunc = *pzlib_filefunc64_32_def;
+ us.is64bitOpenFunction = is64bitOpenFunction;
- us.filestream= (*(us.z_filefunc.zopen_file))(us.z_filefunc.opaque,
+
+
+ us.filestream = ZOPEN64(us.z_filefunc,
path,
ZLIB_FILEFUNC_MODE_READ |
ZLIB_FILEFUNC_MODE_EXISTING);
if (us.filestream==NULL)
return NULL;
- central_pos = unzlocal_SearchCentralDir(&us.z_filefunc,us.filestream);
- if (central_pos==0)
- err=UNZ_ERRNO;
+ central_pos = unz64local_SearchCentralDir64(&us.z_filefunc,us.filestream);
+ if (central_pos)
+ {
+ uLong uS;
+ ZPOS64_T uL64;
- if (ZSEEK(us.z_filefunc, us.filestream,
+ us.isZip64 = 1;
+
+ if (ZSEEK64(us.z_filefunc, us.filestream,
central_pos,ZLIB_FILEFUNC_SEEK_SET)!=0)
err=UNZ_ERRNO;
- /* the signature, already checked */
- if (unzlocal_getLong(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK)
- err=UNZ_ERRNO;
+ /* the signature, already checked */
+ if (unz64local_getLong(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK)
+ err=UNZ_ERRNO;
- /* number of this disk */
- if (unzlocal_getShort(&us.z_filefunc, us.filestream,&number_disk)!=UNZ_OK)
- err=UNZ_ERRNO;
+ /* size of zip64 end of central directory record */
+ if (unz64local_getLong64(&us.z_filefunc, us.filestream,&uL64)!=UNZ_OK)
+ err=UNZ_ERRNO;
- /* number of the disk with the start of the central directory */
- if (unzlocal_getShort(&us.z_filefunc, us.filestream,&number_disk_with_CD)!=UNZ_OK)
- err=UNZ_ERRNO;
+ /* version made by */
+ if (unz64local_getShort(&us.z_filefunc, us.filestream,&uS)!=UNZ_OK)
+ err=UNZ_ERRNO;
- /* total number of entries in the central dir on this disk */
- if (unzlocal_getShort(&us.z_filefunc, us.filestream,&us.gi.number_entry)!=UNZ_OK)
- err=UNZ_ERRNO;
+ /* version needed to extract */
+ if (unz64local_getShort(&us.z_filefunc, us.filestream,&uS)!=UNZ_OK)
+ err=UNZ_ERRNO;
- /* total number of entries in the central dir */
- if (unzlocal_getShort(&us.z_filefunc, us.filestream,&number_entry_CD)!=UNZ_OK)
- err=UNZ_ERRNO;
+ /* number of this disk */
+ if (unz64local_getLong(&us.z_filefunc, us.filestream,&number_disk)!=UNZ_OK)
+ err=UNZ_ERRNO;
- if ((number_entry_CD!=us.gi.number_entry) ||
- (number_disk_with_CD!=0) ||
- (number_disk!=0))
- err=UNZ_BADZIPFILE;
+ /* number of the disk with the start of the central directory */
+ if (unz64local_getLong(&us.z_filefunc, us.filestream,&number_disk_with_CD)!=UNZ_OK)
+ err=UNZ_ERRNO;
- /* size of the central directory */
- if (unzlocal_getLong(&us.z_filefunc, us.filestream,&us.size_central_dir)!=UNZ_OK)
- err=UNZ_ERRNO;
+ /* total number of entries in the central directory on this disk */
+ if (unz64local_getLong64(&us.z_filefunc, us.filestream,&us.gi.number_entry)!=UNZ_OK)
+ err=UNZ_ERRNO;
- /* offset of start of central directory with respect to the
+ /* total number of entries in the central directory */
+ if (unz64local_getLong64(&us.z_filefunc, us.filestream,&number_entry_CD)!=UNZ_OK)
+ err=UNZ_ERRNO;
+
+ if ((number_entry_CD!=us.gi.number_entry) ||
+ (number_disk_with_CD!=0) ||
+ (number_disk!=0))
+ err=UNZ_BADZIPFILE;
+
+ /* size of the central directory */
+ if (unz64local_getLong64(&us.z_filefunc, us.filestream,&us.size_central_dir)!=UNZ_OK)
+ err=UNZ_ERRNO;
+
+ /* offset of start of central directory with respect to the
starting disk number */
- if (unzlocal_getLong(&us.z_filefunc, us.filestream,&us.offset_central_dir)!=UNZ_OK)
- err=UNZ_ERRNO;
+ if (unz64local_getLong64(&us.z_filefunc, us.filestream,&us.offset_central_dir)!=UNZ_OK)
+ err=UNZ_ERRNO;
- /* zipfile comment length */
- if (unzlocal_getShort(&us.z_filefunc, us.filestream,&us.gi.size_comment)!=UNZ_OK)
- err=UNZ_ERRNO;
+ us.gi.size_comment = 0;
+ }
+ else
+ {
+ central_pos = unz64local_SearchCentralDir(&us.z_filefunc,us.filestream);
+ if (central_pos==0)
+ err=UNZ_ERRNO;
+
+ us.isZip64 = 0;
+
+ if (ZSEEK64(us.z_filefunc, us.filestream,
+ central_pos,ZLIB_FILEFUNC_SEEK_SET)!=0)
+ err=UNZ_ERRNO;
+
+ /* the signature, already checked */
+ if (unz64local_getLong(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK)
+ err=UNZ_ERRNO;
+
+ /* number of this disk */
+ if (unz64local_getShort(&us.z_filefunc, us.filestream,&number_disk)!=UNZ_OK)
+ err=UNZ_ERRNO;
+
+ /* number of the disk with the start of the central directory */
+ if (unz64local_getShort(&us.z_filefunc, us.filestream,&number_disk_with_CD)!=UNZ_OK)
+ err=UNZ_ERRNO;
+
+ /* total number of entries in the central dir on this disk */
+ if (unz64local_getShort(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK)
+ err=UNZ_ERRNO;
+ us.gi.number_entry = uL;
+
+ /* total number of entries in the central dir */
+ if (unz64local_getShort(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK)
+ err=UNZ_ERRNO;
+ number_entry_CD = uL;
+
+ if ((number_entry_CD!=us.gi.number_entry) ||
+ (number_disk_with_CD!=0) ||
+ (number_disk!=0))
+ err=UNZ_BADZIPFILE;
+
+ /* size of the central directory */
+ if (unz64local_getLong(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK)
+ err=UNZ_ERRNO;
+ us.size_central_dir = uL;
+
+ /* offset of start of central directory with respect to the
+ starting disk number */
+ if (unz64local_getLong(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK)
+ err=UNZ_ERRNO;
+ us.offset_central_dir = uL;
+
+ /* zipfile comment length */
+ if (unz64local_getShort(&us.z_filefunc, us.filestream,&us.gi.size_comment)!=UNZ_OK)
+ err=UNZ_ERRNO;
+ }
if ((central_pos<us.offset_central_dir+us.size_central_dir) &&
(err==UNZ_OK))
@@ -483,7 +745,7 @@
if (err!=UNZ_OK)
{
- ZCLOSE(us.z_filefunc, us.filestream);
+ ZCLOSE64(us.z_filefunc, us.filestream);
return NULL;
}
@@ -494,17 +756,52 @@
us.encrypted = 0;
- s=(unz_s*)ALLOC(sizeof(unz_s));
- *s=us;
- unzGoToFirstFile((unzFile)s);
+ s=(unz64_s*)ALLOC(sizeof(unz64_s));
+ if( s != NULL)
+ {
+ *s=us;
+ unzGoToFirstFile((unzFile)s);
+ }
return (unzFile)s;
}
-extern unzFile ZEXPORT unzOpen (path)
- const char *path;
+extern unzFile ZEXPORT unzOpen2 (const char *path,
+ zlib_filefunc_def* pzlib_filefunc32_def)
{
- return unzOpen2(path, NULL);
+ if (pzlib_filefunc32_def != NULL)
+ {
+ zlib_filefunc64_32_def zlib_filefunc64_32_def_fill;
+ fill_zlib_filefunc64_32_def_from_filefunc32(&zlib_filefunc64_32_def_fill,pzlib_filefunc32_def);
+ return unzOpenInternal(path, &zlib_filefunc64_32_def_fill, 0);
+ }
+ else
+ return unzOpenInternal(path, NULL, 0);
+}
+
+extern unzFile ZEXPORT unzOpen2_64 (const void *path,
+ zlib_filefunc64_def* pzlib_filefunc_def)
+{
+ if (pzlib_filefunc_def != NULL)
+ {
+ zlib_filefunc64_32_def zlib_filefunc64_32_def_fill;
+ zlib_filefunc64_32_def_fill.zfile_func64 = *pzlib_filefunc_def;
+ zlib_filefunc64_32_def_fill.ztell32_file = NULL;
+ zlib_filefunc64_32_def_fill.zseek32_file = NULL;
+ return unzOpenInternal(path, &zlib_filefunc64_32_def_fill, 1);
+ }
+ else
+ return unzOpenInternal(path, NULL, 1);
+}
+
+extern unzFile ZEXPORT unzOpen (const char *path)
+{
+ return unzOpenInternal(path, NULL, 0);
+}
+
+extern unzFile ZEXPORT unzOpen64 (const void *path)
+{
+ return unzOpenInternal(path, NULL, 1);
}
/*
@@ -512,18 +809,17 @@
If there is files inside the .Zip opened with unzipOpenCurrentFile (see later),
these files MUST be closed with unzipCloseCurrentFile before call unzipClose.
return UNZ_OK if there is no problem. */
-extern int ZEXPORT unzClose (file)
- unzFile file;
+extern int ZEXPORT unzClose (unzFile file)
{
- unz_s* s;
+ unz64_s* s;
if (file==NULL)
return UNZ_PARAMERROR;
- s=(unz_s*)file;
+ s=(unz64_s*)file;
if (s->pfile_in_zip_read!=NULL)
unzCloseCurrentFile(file);
- ZCLOSE(s->z_filefunc, s->filestream);
+ ZCLOSE64(s->z_filefunc, s->filestream);
TRYFREE(s);
return UNZ_OK;
}
@@ -533,28 +829,34 @@
Write info about the ZipFile in the *pglobal_info structure.
No preparation of the structure is needed
return UNZ_OK if there is no problem. */
-extern int ZEXPORT unzGetGlobalInfo (file,pglobal_info)
- unzFile file;
- unz_global_info *pglobal_info;
+extern int ZEXPORT unzGetGlobalInfo64 (unzFile file, unz_global_info64* pglobal_info)
{
- unz_s* s;
+ unz64_s* s;
if (file==NULL)
return UNZ_PARAMERROR;
- s=(unz_s*)file;
+ s=(unz64_s*)file;
*pglobal_info=s->gi;
return UNZ_OK;
}
-
+extern int ZEXPORT unzGetGlobalInfo (unzFile file, unz_global_info* pglobal_info32)
+{
+ unz64_s* s;
+ if (file==NULL)
+ return UNZ_PARAMERROR;
+ s=(unz64_s*)file;
+ /* to do : check if number_entry is not truncated */
+ pglobal_info32->number_entry = (uLong)s->gi.number_entry;
+ pglobal_info32->size_comment = s->gi.size_comment;
+ return UNZ_OK;
+}
/*
Translate date/time from Dos format to tm_unz (readable more easilty)
*/
-local void unzlocal_DosDateToTmuDate (ulDosDate, ptm)
- uLong ulDosDate;
- tm_unz* ptm;
+local void unz64local_DosDateToTmuDate (ZPOS64_T ulDosDate, tm_unz* ptm)
{
- uLong uDate;
- uDate = (uLong)(ulDosDate>>16);
+ ZPOS64_T uDate;
+ uDate = (ZPOS64_T)(ulDosDate>>16);
ptm->tm_mday = (uInt)(uDate&0x1f) ;
ptm->tm_mon = (uInt)((((uDate)&0x1E0)/0x20)-1) ;
ptm->tm_year = (uInt)(((uDate&0x0FE00)/0x0200)+1980) ;
@@ -567,9 +869,9 @@
/*
Get Info about the current file in the zipfile, with internal only info
*/
-local int unzlocal_GetCurrentFileInfoInternal OF((unzFile file,
- unz_file_info *pfile_info,
- unz_file_info_internal
+local int unz64local_GetCurrentFileInfoInternal OF((unzFile file,
+ unz_file_info64 *pfile_info,
+ unz_file_info64_internal
*pfile_info_internal,
char *szFileName,
uLong fileNameBufferSize,
@@ -578,92 +880,93 @@
char *szComment,
uLong commentBufferSize));
-local int unzlocal_GetCurrentFileInfoInternal (file,
- pfile_info,
- pfile_info_internal,
- szFileName, fileNameBufferSize,
- extraField, extraFieldBufferSize,
- szComment, commentBufferSize)
- unzFile file;
- unz_file_info *pfile_info;
- unz_file_info_internal *pfile_info_internal;
- char *szFileName;
- uLong fileNameBufferSize;
- void *extraField;
- uLong extraFieldBufferSize;
- char *szComment;
- uLong commentBufferSize;
+local int unz64local_GetCurrentFileInfoInternal (unzFile file,
+ unz_file_info64 *pfile_info,
+ unz_file_info64_internal
+ *pfile_info_internal,
+ char *szFileName,
+ uLong fileNameBufferSize,
+ void *extraField,
+ uLong extraFieldBufferSize,
+ char *szComment,
+ uLong commentBufferSize)
{
- unz_s* s;
- unz_file_info file_info;
- unz_file_info_internal file_info_internal;
+ unz64_s* s;
+ unz_file_info64 file_info;
+ unz_file_info64_internal file_info_internal;
int err=UNZ_OK;
uLong uMagic;
long lSeek=0;
+ uLong uL;
if (file==NULL)
return UNZ_PARAMERROR;
- s=(unz_s*)file;
- if (ZSEEK(s->z_filefunc, s->filestream,
+ s=(unz64_s*)file;
+ if (ZSEEK64(s->z_filefunc, s->filestream,
s->pos_in_central_dir+s->byte_before_the_zipfile,
ZLIB_FILEFUNC_SEEK_SET)!=0)
err=UNZ_ERRNO;
/* we check the magic */
- if (err==UNZ_OK) {
- if (unzlocal_getLong(&s->z_filefunc, s->filestream,&uMagic) != UNZ_OK)
+ if (err==UNZ_OK)
+ {
+ if (unz64local_getLong(&s->z_filefunc, s->filestream,&uMagic) != UNZ_OK)
err=UNZ_ERRNO;
else if (uMagic!=0x02014b50)
err=UNZ_BADZIPFILE;
}
- if (unzlocal_getShort(&s->z_filefunc, s->filestream,&file_info.version) != UNZ_OK)
+ if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.version) != UNZ_OK)
err=UNZ_ERRNO;
- if (unzlocal_getShort(&s->z_filefunc, s->filestream,&file_info.version_needed) != UNZ_OK)
+ if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.version_needed) != UNZ_OK)
err=UNZ_ERRNO;
- if (unzlocal_getShort(&s->z_filefunc, s->filestream,&file_info.flag) != UNZ_OK)
+ if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.flag) != UNZ_OK)
err=UNZ_ERRNO;
- if (unzlocal_getShort(&s->z_filefunc, s->filestream,&file_info.compression_method) != UNZ_OK)
+ if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.compression_method) != UNZ_OK)
err=UNZ_ERRNO;
- if (unzlocal_getLong(&s->z_filefunc, s->filestream,&file_info.dosDate) != UNZ_OK)
+ if (unz64local_getLong(&s->z_filefunc, s->filestream,&file_info.dosDate) != UNZ_OK)
err=UNZ_ERRNO;
- unzlocal_DosDateToTmuDate(file_info.dosDate,&file_info.tmu_date);
+ unz64local_DosDateToTmuDate(file_info.dosDate,&file_info.tmu_date);
- if (unzlocal_getLong(&s->z_filefunc, s->filestream,&file_info.crc) != UNZ_OK)
+ if (unz64local_getLong(&s->z_filefunc, s->filestream,&file_info.crc) != UNZ_OK)
err=UNZ_ERRNO;
- if (unzlocal_getLong(&s->z_filefunc, s->filestream,&file_info.compressed_size) != UNZ_OK)
+ if (unz64local_getLong(&s->z_filefunc, s->filestream,&uL) != UNZ_OK)
+ err=UNZ_ERRNO;
+ file_info.compressed_size = uL;
+
+ if (unz64local_getLong(&s->z_filefunc, s->filestream,&uL) != UNZ_OK)
+ err=UNZ_ERRNO;
+ file_info.uncompressed_size = uL;
+
+ if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.size_filename) != UNZ_OK)
err=UNZ_ERRNO;
- if (unzlocal_getLong(&s->z_filefunc, s->filestream,&file_info.uncompressed_size) != UNZ_OK)
+ if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.size_file_extra) != UNZ_OK)
err=UNZ_ERRNO;
- if (unzlocal_getShort(&s->z_filefunc, s->filestream,&file_info.size_filename) != UNZ_OK)
+ if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.size_file_comment) != UNZ_OK)
err=UNZ_ERRNO;
- if (unzlocal_getShort(&s->z_filefunc, s->filestream,&file_info.size_file_extra) != UNZ_OK)
+ if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.disk_num_start) != UNZ_OK)
err=UNZ_ERRNO;
- if (unzlocal_getShort(&s->z_filefunc, s->filestream,&file_info.size_file_comment) != UNZ_OK)
+ if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.internal_fa) != UNZ_OK)
err=UNZ_ERRNO;
- if (unzlocal_getShort(&s->z_filefunc, s->filestream,&file_info.disk_num_start) != UNZ_OK)
+ if (unz64local_getLong(&s->z_filefunc, s->filestream,&file_info.external_fa) != UNZ_OK)
err=UNZ_ERRNO;
- if (unzlocal_getShort(&s->z_filefunc, s->filestream,&file_info.internal_fa) != UNZ_OK)
+ // relative offset of local header
+ if (unz64local_getLong(&s->z_filefunc, s->filestream,&uL) != UNZ_OK)
err=UNZ_ERRNO;
-
- if (unzlocal_getLong(&s->z_filefunc, s->filestream,&file_info.external_fa) != UNZ_OK)
- err=UNZ_ERRNO;
-
- if (unzlocal_getLong(&s->z_filefunc, s->filestream,&file_info_internal.offset_curfile) != UNZ_OK)
- err=UNZ_ERRNO;
+ file_info_internal.offset_curfile = uL;
lSeek+=file_info.size_filename;
if ((err==UNZ_OK) && (szFileName!=NULL))
@@ -678,35 +981,106 @@
uSizeRead = fileNameBufferSize;
if ((file_info.size_filename>0) && (fileNameBufferSize>0))
- if (ZREAD(s->z_filefunc, s->filestream,szFileName,uSizeRead)!=uSizeRead)
+ if (ZREAD64(s->z_filefunc, s->filestream,szFileName,uSizeRead)!=uSizeRead)
err=UNZ_ERRNO;
lSeek -= uSizeRead;
}
-
+ // Read extrafield
if ((err==UNZ_OK) && (extraField!=NULL))
{
- uLong uSizeRead ;
+ ZPOS64_T uSizeRead ;
if (file_info.size_file_extra<extraFieldBufferSize)
uSizeRead = file_info.size_file_extra;
else
uSizeRead = extraFieldBufferSize;
- if (lSeek!=0) {
- if (ZSEEK(s->z_filefunc, s->filestream,lSeek,ZLIB_FILEFUNC_SEEK_CUR)==0)
+ if (lSeek!=0)
+ {
+ if (ZSEEK64(s->z_filefunc, s->filestream,lSeek,ZLIB_FILEFUNC_SEEK_CUR)==0)
lSeek=0;
else
err=UNZ_ERRNO;
}
+
if ((file_info.size_file_extra>0) && (extraFieldBufferSize>0))
- if (ZREAD(s->z_filefunc, s->filestream,extraField,uSizeRead)!=uSizeRead)
+ if (ZREAD64(s->z_filefunc, s->filestream,extraField,(uLong)uSizeRead)!=uSizeRead)
err=UNZ_ERRNO;
- lSeek += file_info.size_file_extra - uSizeRead;
+
+ lSeek += file_info.size_file_extra - (uLong)uSizeRead;
}
else
- lSeek+=file_info.size_file_extra;
+ lSeek += file_info.size_file_extra;
+ if ((err==UNZ_OK) && (file_info.size_file_extra != 0))
+ {
+ uLong acc = 0;
+
+ // since lSeek now points to after the extra field we need to move back
+ lSeek -= file_info.size_file_extra;
+
+ if (lSeek!=0)
+ {
+ if (ZSEEK64(s->z_filefunc, s->filestream,lSeek,ZLIB_FILEFUNC_SEEK_CUR)==0)
+ lSeek=0;
+ else
+ err=UNZ_ERRNO;
+ }
+
+ while(acc < file_info.size_file_extra)
+ {
+ uLong headerId;
+ uLong dataSize;
+
+ if (unz64local_getShort(&s->z_filefunc, s->filestream,&headerId) != UNZ_OK)
+ err=UNZ_ERRNO;
+
+ if (unz64local_getShort(&s->z_filefunc, s->filestream,&dataSize) != UNZ_OK)
+ err=UNZ_ERRNO;
+
+ /* ZIP64 extra fields */
+ if (headerId == 0x0001)
+ {
+ uLong uL;
+
+ if(file_info.uncompressed_size == (ZPOS64_T)(unsigned long)-1)
+ {
+ if (unz64local_getLong64(&s->z_filefunc, s->filestream,&file_info.uncompressed_size) != UNZ_OK)
+ err=UNZ_ERRNO;
+ }
+
+ if(file_info.compressed_size == (ZPOS64_T)(unsigned long)-1)
+ {
+ if (unz64local_getLong64(&s->z_filefunc, s->filestream,&file_info.compressed_size) != UNZ_OK)
+ err=UNZ_ERRNO;
+ }
+
+ if(file_info_internal.offset_curfile == (ZPOS64_T)(unsigned long)-1)
+ {
+ /* Relative Header offset */
+ if (unz64local_getLong64(&s->z_filefunc, s->filestream,&file_info_internal.offset_curfile) != UNZ_OK)
+ err=UNZ_ERRNO;
+ }
+
+ if(file_info.disk_num_start == (unsigned long)-1)
+ {
+ /* Disk Start Number */
+ if (unz64local_getLong(&s->z_filefunc, s->filestream,&uL) != UNZ_OK)
+ err=UNZ_ERRNO;
+ }
+
+ }
+ else
+ {
+ if (ZSEEK64(s->z_filefunc, s->filestream,dataSize,ZLIB_FILEFUNC_SEEK_CUR)!=0)
+ err=UNZ_ERRNO;
+ }
+
+ acc += 2 + 2 + dataSize;
+ }
+ }
+
if ((err==UNZ_OK) && (szComment!=NULL))
{
uLong uSizeRead ;
@@ -718,20 +1092,23 @@
else
uSizeRead = commentBufferSize;
- if (lSeek!=0) {
- if (ZSEEK(s->z_filefunc, s->filestream,lSeek,ZLIB_FILEFUNC_SEEK_CUR)==0)
+ if (lSeek!=0)
+ {
+ if (ZSEEK64(s->z_filefunc, s->filestream,lSeek,ZLIB_FILEFUNC_SEEK_CUR)==0)
lSeek=0;
else
err=UNZ_ERRNO;
}
+
if ((file_info.size_file_comment>0) && (commentBufferSize>0))
- if (ZREAD(s->z_filefunc, s->filestream,szComment,uSizeRead)!=uSizeRead)
+ if (ZREAD64(s->z_filefunc, s->filestream,szComment,uSizeRead)!=uSizeRead)
err=UNZ_ERRNO;
lSeek+=file_info.size_file_comment - uSizeRead;
}
else
lSeek+=file_info.size_file_comment;
+
if ((err==UNZ_OK) && (pfile_info!=NULL))
*pfile_info=file_info;
@@ -748,41 +1125,70 @@
No preparation of the structure is needed
return UNZ_OK if there is no problem.
*/
-extern int ZEXPORT unzGetCurrentFileInfo (file,
- pfile_info,
- szFileName, fileNameBufferSize,
- extraField, extraFieldBufferSize,
- szComment, commentBufferSize)
- unzFile file;
- unz_file_info *pfile_info;
- char *szFileName;
- uLong fileNameBufferSize;
- void *extraField;
- uLong extraFieldBufferSize;
- char *szComment;
- uLong commentBufferSize;
+extern int ZEXPORT unzGetCurrentFileInfo64 (unzFile file,
+ unz_file_info64 * pfile_info,
+ char * szFileName, uLong fileNameBufferSize,
+ void *extraField, uLong extraFieldBufferSize,
+ char* szComment, uLong commentBufferSize)
{
- return unzlocal_GetCurrentFileInfoInternal(file,pfile_info,NULL,
+ return unz64local_GetCurrentFileInfoInternal(file,pfile_info,NULL,
szFileName,fileNameBufferSize,
extraField,extraFieldBufferSize,
szComment,commentBufferSize);
}
+extern int ZEXPORT unzGetCurrentFileInfo (unzFile file,
+ unz_file_info * pfile_info,
+ char * szFileName, uLong fileNameBufferSize,
+ void *extraField, uLong extraFieldBufferSize,
+ char* szComment, uLong commentBufferSize)
+{
+ int err;
+ unz_file_info64 file_info64;
+ err = unz64local_GetCurrentFileInfoInternal(file,&file_info64,NULL,
+ szFileName,fileNameBufferSize,
+ extraField,extraFieldBufferSize,
+ szComment,commentBufferSize);
+ if (err==UNZ_OK)
+ {
+ pfile_info->version = file_info64.version;
+ pfile_info->version_needed = file_info64.version_needed;
+ pfile_info->flag = file_info64.flag;
+ pfile_info->compression_method = file_info64.compression_method;
+ pfile_info->dosDate = file_info64.dosDate;
+ pfile_info->crc = file_info64.crc;
+
+ pfile_info->size_filename = file_info64.size_filename;
+ pfile_info->size_file_extra = file_info64.size_file_extra;
+ pfile_info->size_file_comment = file_info64.size_file_comment;
+
+ pfile_info->disk_num_start = file_info64.disk_num_start;
+ pfile_info->internal_fa = file_info64.internal_fa;
+ pfile_info->external_fa = file_info64.external_fa;
+
+ pfile_info->tmu_date = file_info64.tmu_date,
+
+
+ pfile_info->compressed_size = (uLong)file_info64.compressed_size;
+ pfile_info->uncompressed_size = (uLong)file_info64.uncompressed_size;
+
+ }
+ return err;
+}
/*
Set the current file of the zipfile to the first file.
return UNZ_OK if there is no problem
*/
-extern int ZEXPORT unzGoToFirstFile (file)
- unzFile file;
+extern int ZEXPORT unzGoToFirstFile (unzFile file)
{
int err=UNZ_OK;
- unz_s* s;
+ unz64_s* s;
if (file==NULL)
return UNZ_PARAMERROR;
- s=(unz_s*)file;
+ s=(unz64_s*)file;
s->pos_in_central_dir=s->offset_central_dir;
s->num_file=0;
- err=unzlocal_GetCurrentFileInfoInternal(file,&s->cur_file_info,
+ err=unz64local_GetCurrentFileInfoInternal(file,&s->cur_file_info,
&s->cur_file_info_internal,
NULL,0,NULL,0,NULL,0);
s->current_file_ok = (err == UNZ_OK);
@@ -794,15 +1200,14 @@
return UNZ_OK if there is no problem
return UNZ_END_OF_LIST_OF_FILE if the actual file was the latest.
*/
-extern int ZEXPORT unzGoToNextFile (file)
- unzFile file;
+extern int ZEXPORT unzGoToNextFile (unzFile file)
{
- unz_s* s;
+ unz64_s* s;
int err;
if (file==NULL)
return UNZ_PARAMERROR;
- s=(unz_s*)file;
+ s=(unz64_s*)file;
if (!s->current_file_ok)
return UNZ_END_OF_LIST_OF_FILE;
if (s->gi.number_entry != 0xffff) /* 2^16 files overflow hack */
@@ -812,7 +1217,7 @@
s->pos_in_central_dir += SIZECENTRALDIRITEM + s->cur_file_info.size_filename +
s->cur_file_info.size_file_extra + s->cur_file_info.size_file_comment ;
s->num_file++;
- err = unzlocal_GetCurrentFileInfoInternal(file,&s->cur_file_info,
+ err = unz64local_GetCurrentFileInfoInternal(file,&s->cur_file_info,
&s->cur_file_info_internal,
NULL,0,NULL,0,NULL,0);
s->current_file_ok = (err == UNZ_OK);
@@ -828,21 +1233,18 @@
UNZ_OK if the file is found. It becomes the current file.
UNZ_END_OF_LIST_OF_FILE if the file is not found
*/
-extern int ZEXPORT unzLocateFile (file, szFileName, iCaseSensitivity)
- unzFile file;
- const char *szFileName;
- int iCaseSensitivity;
+extern int ZEXPORT unzLocateFile (unzFile file, const char *szFileName, int iCaseSensitivity)
{
- unz_s* s;
+ unz64_s* s;
int err;
/* We remember the 'current' position in the file so that we can jump
* back there if we fail.
*/
- unz_file_info cur_file_infoSaved;
- unz_file_info_internal cur_file_info_internalSaved;
- uLong num_fileSaved;
- uLong pos_in_central_dirSaved;
+ unz_file_info64 cur_file_infoSaved;
+ unz_file_info64_internal cur_file_info_internalSaved;
+ ZPOS64_T num_fileSaved;
+ ZPOS64_T pos_in_central_dirSaved;
if (file==NULL)
@@ -851,7 +1253,7 @@
if (strlen(szFileName)>=UNZ_MAXFILENAMEINZIP)
return UNZ_PARAMERROR;
- s=(unz_s*)file;
+ s=(unz64_s*)file;
if (!s->current_file_ok)
return UNZ_END_OF_LIST_OF_FILE;
@@ -866,7 +1268,7 @@
while (err == UNZ_OK)
{
char szCurrentFileName[UNZ_MAXFILENAMEINZIP+1];
- err = unzGetCurrentFileInfo(file,NULL,
+ err = unzGetCurrentFileInfo64(file,NULL,
szCurrentFileName,sizeof(szCurrentFileName)-1,
NULL,0,NULL,0);
if (err == UNZ_OK)
@@ -902,20 +1304,18 @@
/*
typedef struct unz_file_pos_s
{
- uLong pos_in_zip_directory; // offset in file
- uLong num_of_file; // # of file
+ ZPOS64_T pos_in_zip_directory; // offset in file
+ ZPOS64_T num_of_file; // # of file
} unz_file_pos;
*/
-extern int ZEXPORT unzGetFilePos(file, file_pos)
- unzFile file;
- unz_file_pos* file_pos;
+extern int ZEXPORT unzGetFilePos64(unzFile file, unz64_file_pos* file_pos)
{
- unz_s* s;
+ unz64_s* s;
if (file==NULL || file_pos==NULL)
return UNZ_PARAMERROR;
- s=(unz_s*)file;
+ s=(unz64_s*)file;
if (!s->current_file_ok)
return UNZ_END_OF_LIST_OF_FILE;
@@ -925,23 +1325,35 @@
return UNZ_OK;
}
-extern int ZEXPORT unzGoToFilePos(file, file_pos)
- unzFile file;
- unz_file_pos* file_pos;
+extern int ZEXPORT unzGetFilePos(
+ unzFile file,
+ unz_file_pos* file_pos)
{
- unz_s* s;
+ unz64_file_pos file_pos64;
+ int err = unzGetFilePos64(file,&file_pos64);
+ if (err==UNZ_OK)
+ {
+ file_pos->pos_in_zip_directory = (uLong)file_pos64.pos_in_zip_directory;
+ file_pos->num_of_file = (uLong)file_pos64.num_of_file;
+ }
+ return err;
+}
+
+extern int ZEXPORT unzGoToFilePos64(unzFile file, const unz64_file_pos* file_pos)
+{
+ unz64_s* s;
int err;
if (file==NULL || file_pos==NULL)
return UNZ_PARAMERROR;
- s=(unz_s*)file;
+ s=(unz64_s*)file;
/* jump to the right spot */
s->pos_in_central_dir = file_pos->pos_in_zip_directory;
s->num_file = file_pos->num_of_file;
/* set the current file */
- err = unzlocal_GetCurrentFileInfoInternal(file,&s->cur_file_info,
+ err = unz64local_GetCurrentFileInfoInternal(file,&s->cur_file_info,
&s->cur_file_info_internal,
NULL,0,NULL,0,NULL,0);
/* return results */
@@ -949,6 +1361,19 @@
return err;
}
+extern int ZEXPORT unzGoToFilePos(
+ unzFile file,
+ unz_file_pos* file_pos)
+{
+ unz64_file_pos file_pos64;
+ if (file_pos == NULL)
+ return UNZ_PARAMERROR;
+
+ file_pos64.pos_in_zip_directory = file_pos->pos_in_zip_directory;
+ file_pos64.num_of_file = file_pos->num_of_file;
+ return unzGoToFilePos64(file,&file_pos64);
+}
+
/*
// Unzip Helper Functions - should be here?
///////////////////////////////////////////
@@ -961,13 +1386,9 @@
store in *piSizeVar the size of extra info in local header
(filename and size of extra field data)
*/
-local int unzlocal_CheckCurrentFileCoherencyHeader (s,piSizeVar,
- poffset_local_extrafield,
- psize_local_extrafield)
- unz_s* s;
- uInt* piSizeVar;
- uLong *poffset_local_extrafield;
- uInt *psize_local_extrafield;
+local int unz64local_CheckCurrentFileCoherencyHeader (unz64_s* s, uInt* piSizeVar,
+ ZPOS64_T * poffset_local_extrafield,
+ uInt * psize_local_extrafield)
{
uLong uMagic,uData,uFlags;
uLong size_filename;
@@ -978,66 +1399,66 @@
*poffset_local_extrafield = 0;
*psize_local_extrafield = 0;
- if (ZSEEK(s->z_filefunc, s->filestream,s->cur_file_info_internal.offset_curfile +
+ if (ZSEEK64(s->z_filefunc, s->filestream,s->cur_file_info_internal.offset_curfile +
s->byte_before_the_zipfile,ZLIB_FILEFUNC_SEEK_SET)!=0)
return UNZ_ERRNO;
- if (err==UNZ_OK) {
- if (unzlocal_getLong(&s->z_filefunc, s->filestream,&uMagic) != UNZ_OK)
+ if (err==UNZ_OK)
+ {
+ if (unz64local_getLong(&s->z_filefunc, s->filestream,&uMagic) != UNZ_OK)
err=UNZ_ERRNO;
else if (uMagic!=0x04034b50)
err=UNZ_BADZIPFILE;
}
- if (unzlocal_getShort(&s->z_filefunc, s->filestream,&uData) != UNZ_OK)
+ if (unz64local_getShort(&s->z_filefunc, s->filestream,&uData) != UNZ_OK)
err=UNZ_ERRNO;
/*
else if ((err==UNZ_OK) && (uData!=s->cur_file_info.wVersion))
err=UNZ_BADZIPFILE;
*/
- if (unzlocal_getShort(&s->z_filefunc, s->filestream,&uFlags) != UNZ_OK)
+ if (unz64local_getShort(&s->z_filefunc, s->filestream,&uFlags) != UNZ_OK)
err=UNZ_ERRNO;
- if (unzlocal_getShort(&s->z_filefunc, s->filestream,&uData) != UNZ_OK)
+ if (unz64local_getShort(&s->z_filefunc, s->filestream,&uData) != UNZ_OK)
err=UNZ_ERRNO;
else if ((err==UNZ_OK) && (uData!=s->cur_file_info.compression_method))
err=UNZ_BADZIPFILE;
if ((err==UNZ_OK) && (s->cur_file_info.compression_method!=0) &&
+/* #ifdef HAVE_BZIP2 */
+ (s->cur_file_info.compression_method!=Z_BZIP2ED) &&
+/* #endif */
(s->cur_file_info.compression_method!=Z_DEFLATED))
err=UNZ_BADZIPFILE;
- if (unzlocal_getLong(&s->z_filefunc, s->filestream,&uData) != UNZ_OK) /* date/time */
+ if (unz64local_getLong(&s->z_filefunc, s->filestream,&uData) != UNZ_OK) /* date/time */
err=UNZ_ERRNO;
- if (unzlocal_getLong(&s->z_filefunc, s->filestream,&uData) != UNZ_OK) /* crc */
+ if (unz64local_getLong(&s->z_filefunc, s->filestream,&uData) != UNZ_OK) /* crc */
err=UNZ_ERRNO;
- else if ((err==UNZ_OK) && (uData!=s->cur_file_info.crc) &&
- ((uFlags & 8)==0))
+ else if ((err==UNZ_OK) && (uData!=s->cur_file_info.crc) && ((uFlags & 8)==0))
err=UNZ_BADZIPFILE;
- if (unzlocal_getLong(&s->z_filefunc, s->filestream,&uData) != UNZ_OK) /* size compr */
+ if (unz64local_getLong(&s->z_filefunc, s->filestream,&uData) != UNZ_OK) /* size compr */
err=UNZ_ERRNO;
- else if ((err==UNZ_OK) && (uData!=s->cur_file_info.compressed_size) &&
- ((uFlags & 8)==0))
+ else if (uData != 0xFFFFFFFF && (err==UNZ_OK) && (uData!=s->cur_file_info.compressed_size) && ((uFlags & 8)==0))
err=UNZ_BADZIPFILE;
- if (unzlocal_getLong(&s->z_filefunc, s->filestream,&uData) != UNZ_OK) /* size uncompr */
+ if (unz64local_getLong(&s->z_filefunc, s->filestream,&uData) != UNZ_OK) /* size uncompr */
err=UNZ_ERRNO;
- else if ((err==UNZ_OK) && (uData!=s->cur_file_info.uncompressed_size) &&
- ((uFlags & 8)==0))
+ else if (uData != 0xFFFFFFFF && (err==UNZ_OK) && (uData!=s->cur_file_info.uncompressed_size) && ((uFlags & 8)==0))
err=UNZ_BADZIPFILE;
-
- if (unzlocal_getShort(&s->z_filefunc, s->filestream,&size_filename) != UNZ_OK)
+ if (unz64local_getShort(&s->z_filefunc, s->filestream,&size_filename) != UNZ_OK)
err=UNZ_ERRNO;
else if ((err==UNZ_OK) && (size_filename!=s->cur_file_info.size_filename))
err=UNZ_BADZIPFILE;
*piSizeVar += (uInt)size_filename;
- if (unzlocal_getShort(&s->z_filefunc, s->filestream,&size_extra_field) != UNZ_OK)
+ if (unz64local_getShort(&s->z_filefunc, s->filestream,&size_extra_field) != UNZ_OK)
err=UNZ_ERRNO;
*poffset_local_extrafield= s->cur_file_info_internal.offset_curfile +
SIZEZIPLOCALHEADER + size_filename;
@@ -1052,18 +1473,14 @@
Open for reading data the current file in the zipfile.
If there is no error and the file is opened, the return value is UNZ_OK.
*/
-extern int ZEXPORT unzOpenCurrentFile3 (file, method, level, raw, password)
- unzFile file;
- int* method;
- int* level;
- int raw;
- const char* password;
+extern int ZEXPORT unzOpenCurrentFile3 (unzFile file, int* method,
+ int* level, int raw, const char* password)
{
int err=UNZ_OK;
uInt iSizeVar;
- unz_s* s;
- file_in_zip_read_info_s* pfile_in_zip_read_info;
- uLong offset_local_extrafield; /* offset of the local extra field */
+ unz64_s* s;
+ file_in_zip64_read_info_s* pfile_in_zip_read_info;
+ ZPOS64_T offset_local_extrafield; /* offset of the local extra field */
uInt size_local_extrafield; /* size of the local extra field */
# ifndef NOUNCRYPT
char source[12];
@@ -1074,19 +1491,17 @@
if (file==NULL)
return UNZ_PARAMERROR;
- s=(unz_s*)file;
+ s=(unz64_s*)file;
if (!s->current_file_ok)
return UNZ_PARAMERROR;
if (s->pfile_in_zip_read != NULL)
unzCloseCurrentFile(file);
- if (unzlocal_CheckCurrentFileCoherencyHeader(s,&iSizeVar,
- &offset_local_extrafield,&size_local_extrafield)!=UNZ_OK)
+ if (unz64local_CheckCurrentFileCoherencyHeader(s,&iSizeVar, &offset_local_extrafield,&size_local_extrafield)!=UNZ_OK)
return UNZ_BADZIPFILE;
- pfile_in_zip_read_info = (file_in_zip_read_info_s*)
- ALLOC(sizeof(file_in_zip_read_info_s));
+ pfile_in_zip_read_info = (file_in_zip64_read_info_s*)ALLOC(sizeof(file_in_zip64_read_info_s));
if (pfile_in_zip_read_info==NULL)
return UNZ_INTERNALERROR;
@@ -1119,31 +1534,60 @@
}
if ((s->cur_file_info.compression_method!=0) &&
+/* #ifdef HAVE_BZIP2 */
+ (s->cur_file_info.compression_method!=Z_BZIP2ED) &&
+/* #endif */
(s->cur_file_info.compression_method!=Z_DEFLATED))
+
err=UNZ_BADZIPFILE;
pfile_in_zip_read_info->crc32_wait=s->cur_file_info.crc;
pfile_in_zip_read_info->crc32=0;
- pfile_in_zip_read_info->compression_method =
- s->cur_file_info.compression_method;
+ pfile_in_zip_read_info->total_out_64=0;
+ pfile_in_zip_read_info->compression_method = s->cur_file_info.compression_method;
pfile_in_zip_read_info->filestream=s->filestream;
pfile_in_zip_read_info->z_filefunc=s->z_filefunc;
pfile_in_zip_read_info->byte_before_the_zipfile=s->byte_before_the_zipfile;
pfile_in_zip_read_info->stream.total_out = 0;
- if ((s->cur_file_info.compression_method==Z_DEFLATED) &&
- (!raw))
+ if ((s->cur_file_info.compression_method==Z_BZIP2ED) && (!raw))
{
+#ifdef HAVE_BZIP2
+ pfile_in_zip_read_info->bstream.bzalloc = (void *(*) (void *, int, int))0;
+ pfile_in_zip_read_info->bstream.bzfree = (free_func)0;
+ pfile_in_zip_read_info->bstream.opaque = (voidpf)0;
+ pfile_in_zip_read_info->bstream.state = (voidpf)0;
+
pfile_in_zip_read_info->stream.zalloc = (alloc_func)0;
pfile_in_zip_read_info->stream.zfree = (free_func)0;
pfile_in_zip_read_info->stream.opaque = (voidpf)0;
pfile_in_zip_read_info->stream.next_in = (voidpf)0;
pfile_in_zip_read_info->stream.avail_in = 0;
+ err=BZ2_bzDecompressInit(&pfile_in_zip_read_info->bstream, 0, 0);
+ if (err == Z_OK)
+ pfile_in_zip_read_info->stream_initialised=Z_BZIP2ED;
+ else
+ {
+ TRYFREE(pfile_in_zip_read_info);
+ return err;
+ }
+#else
+ pfile_in_zip_read_info->raw=1;
+#endif
+ }
+ else if ((s->cur_file_info.compression_method==Z_DEFLATED) && (!raw))
+ {
+ pfile_in_zip_read_info->stream.zalloc = (alloc_func)0;
+ pfile_in_zip_read_info->stream.zfree = (free_func)0;
+ pfile_in_zip_read_info->stream.opaque = (voidpf)0;
+ pfile_in_zip_read_info->stream.next_in = 0;
+ pfile_in_zip_read_info->stream.avail_in = 0;
+
err=inflateInit2(&pfile_in_zip_read_info->stream, -MAX_WBITS);
if (err == Z_OK)
- pfile_in_zip_read_info->stream_initialised=1;
+ pfile_in_zip_read_info->stream_initialised=Z_DEFLATED;
else
{
TRYFREE(pfile_in_zip_read_info);
@@ -1170,6 +1614,7 @@
pfile_in_zip_read_info->stream.avail_in = (uInt)0;
s->pfile_in_zip_read = pfile_in_zip_read_info;
+ s->encrypted = 0;
# ifndef NOUNCRYPT
if (password != NULL)
@@ -1177,12 +1622,12 @@
int i;
s->pcrc_32_tab = get_crc_table();
init_keys(password,s->keys,s->pcrc_32_tab);
- if (ZSEEK(s->z_filefunc, s->filestream,
+ if (ZSEEK64(s->z_filefunc, s->filestream,
s->pfile_in_zip_read->pos_in_zipfile +
s->pfile_in_zip_read->byte_before_the_zipfile,
SEEK_SET)!=0)
return UNZ_INTERNALERROR;
- if(ZREAD(s->z_filefunc, s->filestream,source, 12)<12)
+ if(ZREAD64(s->z_filefunc, s->filestream,source, 12)<12)
return UNZ_INTERNALERROR;
for (i = 0; i<12; i++)
@@ -1197,28 +1642,39 @@
return UNZ_OK;
}
-extern int ZEXPORT unzOpenCurrentFile (file)
- unzFile file;
+extern int ZEXPORT unzOpenCurrentFile (unzFile file)
{
return unzOpenCurrentFile3(file, NULL, NULL, 0, NULL);
}
-extern int ZEXPORT unzOpenCurrentFilePassword (file, password)
- unzFile file;
- const char* password;
+extern int ZEXPORT unzOpenCurrentFilePassword (unzFile file, const char* password)
{
return unzOpenCurrentFile3(file, NULL, NULL, 0, password);
}
-extern int ZEXPORT unzOpenCurrentFile2 (file,method,level,raw)
- unzFile file;
- int* method;
- int* level;
- int raw;
+extern int ZEXPORT unzOpenCurrentFile2 (unzFile file, int* method, int* level, int raw)
{
return unzOpenCurrentFile3(file, method, level, raw, NULL);
}
+/** Addition for GDAL : START */
+
+extern ZPOS64_T ZEXPORT unzGetCurrentFileZStreamPos64( unzFile file)
+{
+ unz64_s* s;
+ file_in_zip64_read_info_s* pfile_in_zip_read_info;
+ s=(unz64_s*)file;
+ if (file==NULL)
+ return 0; //UNZ_PARAMERROR;
+ pfile_in_zip_read_info=s->pfile_in_zip_read;
+ if (pfile_in_zip_read_info==NULL)
+ return 0; //UNZ_PARAMERROR;
+ return pfile_in_zip_read_info->pos_in_zipfile +
+ pfile_in_zip_read_info->byte_before_the_zipfile;
+}
+
+/** Addition for GDAL : END */
+
/*
Read bytes from the current file.
buf contain buffer where data must be copied
@@ -1229,18 +1685,15 @@
return <0 with error code if there is an error
(UNZ_ERRNO for IO error, or zLib error for uncompress error)
*/
-extern int ZEXPORT unzReadCurrentFile (file, buf, len)
- unzFile file;
- voidp buf;
- unsigned len;
+extern int ZEXPORT unzReadCurrentFile (unzFile file, voidp buf, unsigned len)
{
int err=UNZ_OK;
uInt iRead = 0;
- unz_s* s;
- file_in_zip_read_info_s* pfile_in_zip_read_info;
+ unz64_s* s;
+ file_in_zip64_read_info_s* pfile_in_zip_read_info;
if (file==NULL)
return UNZ_PARAMERROR;
- s=(unz_s*)file;
+ s=(unz64_s*)file;
pfile_in_zip_read_info=s->pfile_in_zip_read;
if (pfile_in_zip_read_info==NULL)
@@ -1278,13 +1731,13 @@
uReadThis = (uInt)pfile_in_zip_read_info->rest_read_compressed;
if (uReadThis == 0)
return UNZ_EOF;
- if (ZSEEK(pfile_in_zip_read_info->z_filefunc,
+ if (ZSEEK64(pfile_in_zip_read_info->z_filefunc,
pfile_in_zip_read_info->filestream,
pfile_in_zip_read_info->pos_in_zipfile +
pfile_in_zip_read_info->byte_before_the_zipfile,
ZLIB_FILEFUNC_SEEK_SET)!=0)
return UNZ_ERRNO;
- if (ZREAD(pfile_in_zip_read_info->z_filefunc,
+ if (ZREAD64(pfile_in_zip_read_info->z_filefunc,
pfile_in_zip_read_info->filestream,
pfile_in_zip_read_info->read_buffer,
uReadThis)!=uReadThis)
@@ -1330,6 +1783,8 @@
*(pfile_in_zip_read_info->stream.next_out+i) =
*(pfile_in_zip_read_info->stream.next_in+i);
+ pfile_in_zip_read_info->total_out_64 = pfile_in_zip_read_info->total_out_64 + uDoCopy;
+
pfile_in_zip_read_info->crc32 = crc32(pfile_in_zip_read_info->crc32,
pfile_in_zip_read_info->stream.next_out,
uDoCopy);
@@ -1341,11 +1796,54 @@
pfile_in_zip_read_info->stream.total_out += uDoCopy;
iRead += uDoCopy;
}
- else
+ else if (pfile_in_zip_read_info->compression_method==Z_BZIP2ED)
{
+#ifdef HAVE_BZIP2
uLong uTotalOutBefore,uTotalOutAfter;
const Bytef *bufBefore;
uLong uOutThis;
+
+ pfile_in_zip_read_info->bstream.next_in = (char*)pfile_in_zip_read_info->stream.next_in;
+ pfile_in_zip_read_info->bstream.avail_in = pfile_in_zip_read_info->stream.avail_in;
+ pfile_in_zip_read_info->bstream.total_in_lo32 = pfile_in_zip_read_info->stream.total_in;
+ pfile_in_zip_read_info->bstream.total_in_hi32 = 0;
+ pfile_in_zip_read_info->bstream.next_out = (char*)pfile_in_zip_read_info->stream.next_out;
+ pfile_in_zip_read_info->bstream.avail_out = pfile_in_zip_read_info->stream.avail_out;
+ pfile_in_zip_read_info->bstream.total_out_lo32 = pfile_in_zip_read_info->stream.total_out;
+ pfile_in_zip_read_info->bstream.total_out_hi32 = 0;
+
+ uTotalOutBefore = pfile_in_zip_read_info->bstream.total_out_lo32;
+ bufBefore = (const Bytef *)pfile_in_zip_read_info->bstream.next_out;
+
+ err=BZ2_bzDecompress(&pfile_in_zip_read_info->bstream);
+
+ uTotalOutAfter = pfile_in_zip_read_info->bstream.total_out_lo32;
+ uOutThis = uTotalOutAfter-uTotalOutBefore;
+
+ pfile_in_zip_read_info->total_out_64 = pfile_in_zip_read_info->total_out_64 + uOutThis;
+
+ pfile_in_zip_read_info->crc32 = crc32(pfile_in_zip_read_info->crc32,bufBefore, (uInt)(uOutThis));
+ pfile_in_zip_read_info->rest_read_uncompressed -= uOutThis;
+ iRead += (uInt)(uTotalOutAfter - uTotalOutBefore);
+
+ pfile_in_zip_read_info->stream.next_in = (Bytef*)pfile_in_zip_read_info->bstream.next_in;
+ pfile_in_zip_read_info->stream.avail_in = pfile_in_zip_read_info->bstream.avail_in;
+ pfile_in_zip_read_info->stream.total_in = pfile_in_zip_read_info->bstream.total_in_lo32;
+ pfile_in_zip_read_info->stream.next_out = (Bytef*)pfile_in_zip_read_info->bstream.next_out;
+ pfile_in_zip_read_info->stream.avail_out = pfile_in_zip_read_info->bstream.avail_out;
+ pfile_in_zip_read_info->stream.total_out = pfile_in_zip_read_info->bstream.total_out_lo32;
+
+ if (err==BZ_STREAM_END)
+ return (iRead==0) ? UNZ_EOF : iRead;
+ if (err!=BZ_OK)
+ break;
+#endif
+ } // end Z_BZIP2ED
+ else
+ {
+ ZPOS64_T uTotalOutBefore,uTotalOutAfter;
+ const Bytef *bufBefore;
+ ZPOS64_T uOutThis;
int flush=Z_SYNC_FLUSH;
uTotalOutBefore = pfile_in_zip_read_info->stream.total_out;
@@ -1365,6 +1863,8 @@
uTotalOutAfter = pfile_in_zip_read_info->stream.total_out;
uOutThis = uTotalOutAfter-uTotalOutBefore;
+ pfile_in_zip_read_info->total_out_64 = pfile_in_zip_read_info->total_out_64 + uOutThis;
+
pfile_in_zip_read_info->crc32 =
crc32(pfile_in_zip_read_info->crc32,bufBefore,
(uInt)(uOutThis));
@@ -1390,14 +1890,13 @@
/*
Give the current position in uncompressed data
*/
-extern z_off_t ZEXPORT unztell (file)
- unzFile file;
+extern z_off_t ZEXPORT unztell (unzFile file)
{
- unz_s* s;
- file_in_zip_read_info_s* pfile_in_zip_read_info;
+ unz64_s* s;
+ file_in_zip64_read_info_s* pfile_in_zip_read_info;
if (file==NULL)
return UNZ_PARAMERROR;
- s=(unz_s*)file;
+ s=(unz64_s*)file;
pfile_in_zip_read_info=s->pfile_in_zip_read;
if (pfile_in_zip_read_info==NULL)
@@ -1406,18 +1905,33 @@
return (z_off_t)pfile_in_zip_read_info->stream.total_out;
}
+extern ZPOS64_T ZEXPORT unztell64 (unzFile file)
+{
+
+ unz64_s* s;
+ file_in_zip64_read_info_s* pfile_in_zip_read_info;
+ if (file==NULL)
+ return (ZPOS64_T)-1;
+ s=(unz64_s*)file;
+ pfile_in_zip_read_info=s->pfile_in_zip_read;
+
+ if (pfile_in_zip_read_info==NULL)
+ return (ZPOS64_T)-1;
+
+ return pfile_in_zip_read_info->total_out_64;
+}
+
/*
return 1 if the end of file was reached, 0 elsewhere
*/
-extern int ZEXPORT unzeof (file)
- unzFile file;
+extern int ZEXPORT unzeof (unzFile file)
{
- unz_s* s;
- file_in_zip_read_info_s* pfile_in_zip_read_info;
+ unz64_s* s;
+ file_in_zip64_read_info_s* pfile_in_zip_read_info;
if (file==NULL)
return UNZ_PARAMERROR;
- s=(unz_s*)file;
+ s=(unz64_s*)file;
pfile_in_zip_read_info=s->pfile_in_zip_read;
if (pfile_in_zip_read_info==NULL)
@@ -1432,9 +1946,9 @@
/*
- Read extra field from the current file (opened by unzOpenCurrentFile)
- This is the local-header version of the extra field (sometimes, there is
- more info in the local-header version than in the central-header)
+Read extra field from the current file (opened by unzOpenCurrentFile)
+This is the local-header version of the extra field (sometimes, there is
+more info in the local-header version than in the central-header)
if buf==NULL, it return the size of the local extra field that can be read
@@ -1443,19 +1957,16 @@
the return value is the number of bytes copied in buf, or (if <0)
the error code
*/
-extern int ZEXPORT unzGetLocalExtrafield (file,buf,len)
- unzFile file;
- voidp buf;
- unsigned len;
+extern int ZEXPORT unzGetLocalExtrafield (unzFile file, voidp buf, unsigned len)
{
- unz_s* s;
- file_in_zip_read_info_s* pfile_in_zip_read_info;
+ unz64_s* s;
+ file_in_zip64_read_info_s* pfile_in_zip_read_info;
uInt read_now;
- uLong size_to_read;
+ ZPOS64_T size_to_read;
if (file==NULL)
return UNZ_PARAMERROR;
- s=(unz_s*)file;
+ s=(unz64_s*)file;
pfile_in_zip_read_info=s->pfile_in_zip_read;
if (pfile_in_zip_read_info==NULL)
@@ -1475,14 +1986,14 @@
if (read_now==0)
return 0;
- if (ZSEEK(pfile_in_zip_read_info->z_filefunc,
+ if (ZSEEK64(pfile_in_zip_read_info->z_filefunc,
pfile_in_zip_read_info->filestream,
pfile_in_zip_read_info->offset_local_extrafield +
pfile_in_zip_read_info->pos_local_extrafield,
ZLIB_FILEFUNC_SEEK_SET)!=0)
return UNZ_ERRNO;
- if (ZREAD(pfile_in_zip_read_info->z_filefunc,
+ if (ZREAD64(pfile_in_zip_read_info->z_filefunc,
pfile_in_zip_read_info->filestream,
buf,read_now)!=read_now)
return UNZ_ERRNO;
@@ -1494,16 +2005,15 @@
Close the file in zip opened with unzipOpenCurrentFile
Return UNZ_CRCERROR if all the file was read but the CRC is not good
*/
-extern int ZEXPORT unzCloseCurrentFile (file)
- unzFile file;
+extern int ZEXPORT unzCloseCurrentFile (unzFile file)
{
int err=UNZ_OK;
- unz_s* s;
- file_in_zip_read_info_s* pfile_in_zip_read_info;
+ unz64_s* s;
+ file_in_zip64_read_info_s* pfile_in_zip_read_info;
if (file==NULL)
return UNZ_PARAMERROR;
- s=(unz_s*)file;
+ s=(unz64_s*)file;
pfile_in_zip_read_info=s->pfile_in_zip_read;
if (pfile_in_zip_read_info==NULL)
@@ -1520,8 +2030,13 @@
TRYFREE(pfile_in_zip_read_info->read_buffer);
pfile_in_zip_read_info->read_buffer = NULL;
- if (pfile_in_zip_read_info->stream_initialised)
+ if (pfile_in_zip_read_info->stream_initialised == Z_DEFLATED)
inflateEnd(&pfile_in_zip_read_info->stream);
+#ifdef HAVE_BZIP2
+ else if (pfile_in_zip_read_info->stream_initialised == Z_BZIP2ED)
+ BZ2_bzDecompressEnd(&pfile_in_zip_read_info->bstream);
+#endif
+
pfile_in_zip_read_info->stream_initialised = 0;
TRYFREE(pfile_in_zip_read_info);
@@ -1537,29 +2052,25 @@
uSizeBuf is the size of the szComment buffer.
return the number of byte copied or an error code <0
*/
-extern int ZEXPORT unzGetGlobalComment (file, szComment, uSizeBuf)
- unzFile file;
- char *szComment;
- uLong uSizeBuf;
+extern int ZEXPORT unzGetGlobalComment (unzFile file, char * szComment, uLong uSizeBuf)
{
- //int err=UNZ_OK;
- unz_s* s;
+ unz64_s* s;
uLong uReadThis ;
if (file==NULL)
- return UNZ_PARAMERROR;
- s=(unz_s*)file;
+ return (int)UNZ_PARAMERROR;
+ s=(unz64_s*)file;
uReadThis = uSizeBuf;
if (uReadThis>s->gi.size_comment)
uReadThis = s->gi.size_comment;
- if (ZSEEK(s->z_filefunc,s->filestream,s->central_pos+22,ZLIB_FILEFUNC_SEEK_SET)!=0)
+ if (ZSEEK64(s->z_filefunc,s->filestream,s->central_pos+22,ZLIB_FILEFUNC_SEEK_SET)!=0)
return UNZ_ERRNO;
if (uReadThis>0)
{
*szComment='\0';
- if (ZREAD(s->z_filefunc,s->filestream,szComment,uReadThis)!=uReadThis)
+ if (ZREAD64(s->z_filefunc,s->filestream,szComment,uReadThis)!=uReadThis)
return UNZ_ERRNO;
}
@@ -1569,14 +2080,13 @@
}
/* Additions by RX '2004 */
-extern uLong ZEXPORT unzGetOffset (file)
- unzFile file;
+extern ZPOS64_T ZEXPORT unzGetOffset64(unzFile file)
{
- unz_s* s;
+ unz64_s* s;
if (file==NULL)
- return UNZ_PARAMERROR;
- s=(unz_s*)file;
+ return 0; //UNZ_PARAMERROR;
+ s=(unz64_s*)file;
if (!s->current_file_ok)
return 0;
if (s->gi.number_entry != 0 && s->gi.number_entry != 0xffff)
@@ -1585,22 +2095,35 @@
return s->pos_in_central_dir;
}
-extern int ZEXPORT unzSetOffset (file, pos)
- unzFile file;
- uLong pos;
+extern uLong ZEXPORT unzGetOffset (unzFile file)
{
- unz_s* s;
+ ZPOS64_T offset64;
+
+ if (file==NULL)
+ return 0; //UNZ_PARAMERROR;
+ offset64 = unzGetOffset64(file);
+ return (uLong)offset64;
+}
+
+extern int ZEXPORT unzSetOffset64(unzFile file, ZPOS64_T pos)
+{
+ unz64_s* s;
int err;
if (file==NULL)
return UNZ_PARAMERROR;
- s=(unz_s*)file;
+ s=(unz64_s*)file;
s->pos_in_central_dir = pos;
s->num_file = s->gi.number_entry; /* hack */
- err = unzlocal_GetCurrentFileInfoInternal(file,&s->cur_file_info,
+ err = unz64local_GetCurrentFileInfoInternal(file,&s->cur_file_info,
&s->cur_file_info_internal,
NULL,0,NULL,0,NULL,0);
s->current_file_ok = (err == UNZ_OK);
return err;
}
+
+extern int ZEXPORT unzSetOffset (unzFile file, uLong pos)
+{
+ return unzSetOffset64(file,pos);
+}
diff --git a/contrib/minizip/unzip.h b/contrib/minizip/unzip.h
index 4e75c70..b757a22 100644
--- a/contrib/minizip/unzip.h
+++ b/contrib/minizip/unzip.h
@@ -1,20 +1,20 @@
/* unzip.h -- IO for uncompress .zip files using zlib
- Version 1.01e, February 12th, 2005
+ Version 1.1, February 14h, 2010
+ part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html )
- Copyright (C) 1998-2005 Gilles Vollant
+ Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html )
- This unzip package allow extract file from .ZIP file, compatible with PKZip 2.04g
- WinZip, InfoZip tools and compatible.
+ Modifications of Unzip for Zip64
+ Copyright (C) 2007-2008 Even Rouault
- Multi volume ZipFile (span) are not supported.
- Encryption compatible with pkzip 2.04g only supported
- Old compressions used by old PKZip 1.x are not supported
+ Modifications for Zip64 support on both zip and unzip
+ Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com )
+ For more info read MiniZip_info.txt
- I WAIT FEEDBACK at mail info@winimage.com
- Visit also http://www.winimage.com/zLibDll/unzip.htm for evolution
+ ---------------------------------------------------------------------------------
- Condition of use and distribution are the same than zlib :
+ Condition of use and distribution are the same than zlib :
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
@@ -32,33 +32,39 @@
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
+ ---------------------------------------------------------------------------------
+
+ Changes
+
+ See header of unzip64.c
*/
-/* for more info about .ZIP format, see
- http://www.info-zip.org/pub/infozip/doc/appnote-981119-iz.zip
- http://www.info-zip.org/pub/infozip/doc/
- PkWare has also a specification at :
- ftp://ftp.pkware.com/probdesc.zip
-*/
-
-#ifndef _unz_H
-#define _unz_H
+#ifndef _unz64_H
+#define _unz64_H
#ifdef __cplusplus
extern "C" {
#endif
+#ifndef _ZLIB_H
#if defined(USE_SYSTEM_ZLIB)
#include <zlib.h>
#else
#include "third_party/zlib/zlib.h"
#endif
+#endif
-#ifndef _ZLIBIOAPI_H
+#ifndef _ZLIBIOAPI_H
#include "ioapi.h"
#endif
+#ifdef HAVE_BZIP2
+#include "bzlib.h"
+#endif
+
+#define Z_BZIP2ED 12
+
#if defined(STRICTUNZIP) || defined(STRICTZIPUNZIP)
/* like the STRICT of WIN32, we define a pointer that cannot be converted
from (void*) without cast */
@@ -91,15 +97,42 @@
/* unz_global_info structure contain global data about the ZIPfile
These data comes from the end of central dir */
+typedef struct unz_global_info64_s
+{
+ ZPOS64_T number_entry; /* total number of entries in
+ the central dir on this disk */
+ uLong size_comment; /* size of the global comment of the zipfile */
+} unz_global_info64;
+
typedef struct unz_global_info_s
{
uLong number_entry; /* total number of entries in
- the central dir on this disk */
+ the central dir on this disk */
uLong size_comment; /* size of the global comment of the zipfile */
} unz_global_info;
-
/* unz_file_info contain information about a file in the zipfile */
+typedef struct unz_file_info64_s
+{
+ uLong version; /* version made by 2 bytes */
+ uLong version_needed; /* version needed to extract 2 bytes */
+ uLong flag; /* general purpose bit flag 2 bytes */
+ uLong compression_method; /* compression method 2 bytes */
+ uLong dosDate; /* last mod file date in Dos fmt 4 bytes */
+ uLong crc; /* crc-32 4 bytes */
+ ZPOS64_T compressed_size; /* compressed size 8 bytes */
+ ZPOS64_T uncompressed_size; /* uncompressed size 8 bytes */
+ uLong size_filename; /* filename length 2 bytes */
+ uLong size_file_extra; /* extra field length 2 bytes */
+ uLong size_file_comment; /* file comment length 2 bytes */
+
+ uLong disk_num_start; /* disk number start 2 bytes */
+ uLong internal_fa; /* internal file attributes 2 bytes */
+ uLong external_fa; /* external file attributes 4 bytes */
+
+ tm_unz tmu_date;
+} unz_file_info64;
+
typedef struct unz_file_info_s
{
uLong version; /* version made by 2 bytes */
@@ -135,6 +168,7 @@
extern unzFile ZEXPORT unzOpen OF((const char *path));
+extern unzFile ZEXPORT unzOpen64 OF((const void *path));
/*
Open a Zip file. path contain the full pathname (by example,
on a Windows XP computer "c:\\zlib\\zlib113.zip" or on an Unix computer
@@ -143,8 +177,14 @@
return value is NULL.
Else, the return value is a unzFile Handle, usable with other function
of this unzip package.
+ the "64" function take a const void* pointer, because the path is just the
+ value passed to the open64_file_func callback.
+ Under Windows, if UNICODE is defined, using fill_fopen64_filefunc, the path
+ is a pointer to a wide unicode string (LPCTSTR is LPCWSTR), so const char*
+ does not describe the reality
*/
+
extern unzFile ZEXPORT unzOpen2 OF((const char *path,
zlib_filefunc_def* pzlib_filefunc_def));
/*
@@ -152,6 +192,13 @@
for read/write the zip file (see ioapi.h)
*/
+extern unzFile ZEXPORT unzOpen2_64 OF((const void *path,
+ zlib_filefunc64_def* pzlib_filefunc_def));
+/*
+ Open a Zip file, like unz64Open, but provide a set of file low level API
+ for read/write the zip file (see ioapi.h)
+*/
+
extern int ZEXPORT unzClose OF((unzFile file));
/*
Close a ZipFile opened with unzipOpen.
@@ -161,6 +208,9 @@
extern int ZEXPORT unzGetGlobalInfo OF((unzFile file,
unz_global_info *pglobal_info));
+
+extern int ZEXPORT unzGetGlobalInfo64 OF((unzFile file,
+ unz_global_info64 *pglobal_info));
/*
Write info about the ZipFile in the *pglobal_info structure.
No preparation of the structure is needed
@@ -223,8 +273,31 @@
unzFile file,
unz_file_pos* file_pos);
+typedef struct unz64_file_pos_s
+{
+ ZPOS64_T pos_in_zip_directory; /* offset in zip file directory */
+ ZPOS64_T num_of_file; /* # of file */
+} unz64_file_pos;
+
+extern int ZEXPORT unzGetFilePos64(
+ unzFile file,
+ unz64_file_pos* file_pos);
+
+extern int ZEXPORT unzGoToFilePos64(
+ unzFile file,
+ const unz64_file_pos* file_pos);
+
/* ****************************************** */
+extern int ZEXPORT unzGetCurrentFileInfo64 OF((unzFile file,
+ unz_file_info64 *pfile_info,
+ char *szFileName,
+ uLong fileNameBufferSize,
+ void *extraField,
+ uLong extraFieldBufferSize,
+ char *szComment,
+ uLong commentBufferSize));
+
extern int ZEXPORT unzGetCurrentFileInfo OF((unzFile file,
unz_file_info *pfile_info,
char *szFileName,
@@ -246,6 +319,14 @@
(commentBufferSize is the size of the buffer)
*/
+
+/** Addition for GDAL : START */
+
+extern ZPOS64_T ZEXPORT unzGetCurrentFileZStreamPos64 OF((unzFile file));
+
+/** Addition for GDAL : END */
+
+
/***************************************************************************/
/* for reading the content of the current zipfile, you can open it, read data
from it, and close it (you can close it before reading all the file)
@@ -314,6 +395,8 @@
*/
extern z_off_t ZEXPORT unztell OF((unzFile file));
+
+extern ZPOS64_T ZEXPORT unztell64 OF((unzFile file));
/*
Give the current position in uncompressed data
*/
@@ -342,9 +425,11 @@
/***************************************************************************/
/* Get the current file offset */
+extern ZPOS64_T ZEXPORT unzGetOffset64 (unzFile file);
extern uLong ZEXPORT unzGetOffset (unzFile file);
/* Set the current file offset */
+extern int ZEXPORT unzSetOffset64 (unzFile file, ZPOS64_T pos);
extern int ZEXPORT unzSetOffset (unzFile file, uLong pos);
@@ -353,4 +438,4 @@
}
#endif
-#endif /* _unz_H */
+#endif /* _unz64_H */
diff --git a/contrib/minizip/zip.c b/contrib/minizip/zip.c
index 87b15b6..04c6b25 100644
--- a/contrib/minizip/zip.c
+++ b/contrib/minizip/zip.c
@@ -1,12 +1,24 @@
/* zip.c -- IO on .zip files using zlib
- Version 1.01e, February 12th, 2005
+ Version 1.1, February 14h, 2010
+ part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html )
- 27 Dec 2004 Rolf Kalbermatter
- Modification to zipOpen2 to support globalComment retrieval.
+ Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html )
- Copyright (C) 1998-2005 Gilles Vollant
+ Modifications for Zip64 support
+ Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com )
- Read zip.h for more info
+ For more info read MiniZip_info.txt
+
+ Changes
+ Oct-2009 - Mathias Svensson - Remove old C style function prototypes
+ Oct-2009 - Mathias Svensson - Added Zip64 Support when creating new file archives
+ Oct-2009 - Mathias Svensson - Did some code cleanup and refactoring to get better overview of some functions.
+ Oct-2009 - Mathias Svensson - Added zipRemoveExtraInfoBlock to strip extra field data from its ZIP64 data
+ It is used when recreting zip archive with RAW when deleting items from a zip.
+ ZIP64 data is automaticly added to items that needs it, and existing ZIP64 data need to be removed.
+ Oct-2009 - Mathias Svensson - Added support for BZIP2 as compression mode (bzip2 lib is required)
+ Jan-2010 - back to unzip and minizip 1.0 name scheme, with compatibility layer
+
*/
@@ -43,7 +55,7 @@
#endif
#ifndef Z_BUFSIZE
-#define Z_BUFSIZE (16384)
+#define Z_BUFSIZE (64*1024) //(16384)
#endif
#ifndef Z_MAXFILENAMEINZIP
@@ -64,6 +76,10 @@
/* I've found an old Unix (a SunOS 4.1.3_U1) without all SEEK_* defined.... */
+
+// NOT sure that this work on ALL platform
+#define MAKEULONG64(a, b) ((ZPOS64_T)(((unsigned long)(a)) | ((ZPOS64_T)((unsigned long)(b))) << 32))
+
#ifndef SEEK_CUR
#define SEEK_CUR 1
#endif
@@ -83,8 +99,7 @@
# define DEF_MEM_LEVEL MAX_MEM_LEVEL
#endif
#endif
-const char zip_copyright[] =
- " zip 1.01 Copyright 1998-2004 Gilles Vollant - http://www.winimage.com/zLibDll";
+const char zip_copyright[] =" zip 1.01 Copyright 1998-2004 Gilles Vollant - http://www.winimage.com/zLibDll";
#define SIZEDATA_INDATABLOCK (4096-(4*4))
@@ -92,6 +107,8 @@
#define LOCALHEADERMAGIC (0x04034b50)
#define CENTRALHEADERMAGIC (0x02014b50)
#define ENDHEADERMAGIC (0x06054b50)
+#define ZIP64ENDHEADERMAGIC (0x6064b50)
+#define ZIP64ENDLOCHEADERMAGIC (0x7064b50)
#define FLAG_LOCALHEADER_OFFSET (0x06)
#define CRC_LOCALHEADER_OFFSET (0x0e)
@@ -117,13 +134,19 @@
typedef struct
{
z_stream stream; /* zLib stream structure for inflate */
+#ifdef HAVE_BZIP2
+ bz_stream bstream; /* bzLib stream structure for bziped */
+#endif
+
int stream_initialised; /* 1 is stream is initialised */
uInt pos_in_buffered_data; /* last written byte in buffered_data */
- uLong pos_local_header; /* offset of the local header of the file
+ ZPOS64_T pos_local_header; /* offset of the local header of the file
currenty writing */
char* central_header; /* central header data for the current file */
+ uLong size_centralExtra;
uLong size_centralheader; /* size of the central header for cur file */
+ uLong size_centralExtraFree; /* Extra bytes allocated to the centralheader but that are not used */
uLong flag; /* flag of the file currently writing */
int method; /* compression method of file currenty wr.*/
@@ -132,29 +155,34 @@
uLong dosDate;
uLong crc32;
int encrypt;
+ int zip64; /* Add ZIP64 extened information in the extra field */
+ ZPOS64_T pos_zip64extrainfo;
+ ZPOS64_T totalCompressedData;
+ ZPOS64_T totalUncompressedData;
#ifndef NOCRYPT
unsigned long keys[3]; /* keys defining the pseudo-random sequence */
const unsigned long* pcrc_32_tab;
int crypt_header_size;
#endif
-} curfile_info;
+} curfile64_info;
typedef struct
{
- zlib_filefunc_def z_filefunc;
+ zlib_filefunc64_32_def z_filefunc;
voidpf filestream; /* io structore of the zipfile */
linkedlist_data central_dir;/* datablock with central dir in construction*/
int in_opened_file_inzip; /* 1 if a file in the zip is currently writ.*/
- curfile_info ci; /* info on the file curretly writing */
+ curfile64_info ci; /* info on the file curretly writing */
- uLong begin_pos; /* position of the beginning of the zipfile */
- uLong add_position_when_writting_offset;
- uLong number_entry;
+ ZPOS64_T begin_pos; /* position of the beginning of the zipfile */
+ ZPOS64_T add_position_when_writting_offset;
+ ZPOS64_T number_entry;
+
#ifndef NO_ADDFILEINEXISTINGZIP
char *globalcomment;
#endif
-} zip_internal;
+} zip64_internal;
#ifndef NOCRYPT
@@ -176,8 +204,7 @@
return ldi;
}
-local void free_datablock(ldi)
- linkedlist_datablock_internal* ldi;
+local void free_datablock(linkedlist_datablock_internal* ldi)
{
while (ldi!=NULL)
{
@@ -187,24 +214,19 @@
}
}
-local void init_linkedlist(ll)
- linkedlist_data* ll;
+local void init_linkedlist(linkedlist_data* ll)
{
ll->first_block = ll->last_block = NULL;
}
-local void free_linkedlist(ll)
- linkedlist_data* ll;
+local void free_linkedlist(linkedlist_data* ll)
{
free_datablock(ll->first_block);
ll->first_block = ll->last_block = NULL;
}
-local int add_data_in_datablock(ll,buf,len)
- linkedlist_data* ll;
- const void* buf;
- uLong len;
+local int add_data_in_datablock(linkedlist_data* ll, const void* buf, uLong len)
{
linkedlist_datablock_internal* ldi;
const unsigned char* from_copy;
@@ -262,18 +284,13 @@
#ifndef NO_ADDFILEINEXISTINGZIP
/* ===========================================================================
Inputs a long in LSB order to the given file
- nbByte == 1, 2 or 4 (byte, short or long)
+ nbByte == 1, 2 ,4 or 8 (byte, short or long, ZPOS64_T)
*/
-local int ziplocal_putValue OF((const zlib_filefunc_def* pzlib_filefunc_def,
- voidpf filestream, uLong x, int nbByte));
-local int ziplocal_putValue (pzlib_filefunc_def, filestream, x, nbByte)
- const zlib_filefunc_def* pzlib_filefunc_def;
- voidpf filestream;
- uLong x;
- int nbByte;
+local int zip64local_putValue OF((const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, ZPOS64_T x, int nbByte));
+local int zip64local_putValue (const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, ZPOS64_T x, int nbByte)
{
- unsigned char buf[4];
+ unsigned char buf[8];
int n;
for (n = 0; n < nbByte; n++)
{
@@ -288,17 +305,14 @@
}
}
- if (ZWRITE(*pzlib_filefunc_def,filestream,buf,nbByte)!=(uLong)nbByte)
+ if (ZWRITE64(*pzlib_filefunc_def,filestream,buf,nbByte)!=(uLong)nbByte)
return ZIP_ERRNO;
else
return ZIP_OK;
}
-local void ziplocal_putValue_inmemory OF((void* dest, uLong x, int nbByte));
-local void ziplocal_putValue_inmemory (dest, x, nbByte)
- void* dest;
- uLong x;
- int nbByte;
+local void zip64local_putValue_inmemory OF((void* dest, ZPOS64_T x, int nbByte));
+local void zip64local_putValue_inmemory (void* dest, ZPOS64_T x, int nbByte)
{
unsigned char* buf=(unsigned char*)dest;
int n;
@@ -319,14 +333,12 @@
/****************************************************************************/
-local uLong ziplocal_TmzDateToDosDate(ptm,dosDate)
- const tm_zip* ptm;
- uLong dosDate;
+local uLong zip64local_TmzDateToDosDate(const tm_zip* ptm)
{
uLong year = (uLong)ptm->tm_year;
- if (year>1980)
+ if (year>=1980)
year-=1980;
- else if (year>80)
+ else if (year>=80)
year-=80;
return
(uLong) (((ptm->tm_mday) + (32 * (ptm->tm_mon+1)) + (512 * year)) << 16) |
@@ -336,18 +348,12 @@
/****************************************************************************/
-local int ziplocal_getByte OF((
- const zlib_filefunc_def* pzlib_filefunc_def,
- voidpf filestream,
- int *pi));
+local int zip64local_getByte OF((const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, int *pi));
-local int ziplocal_getByte(pzlib_filefunc_def,filestream,pi)
- const zlib_filefunc_def* pzlib_filefunc_def;
- voidpf filestream;
- int *pi;
+local int zip64local_getByte(const zlib_filefunc64_32_def* pzlib_filefunc_def,voidpf filestream,int* pi)
{
unsigned char c;
- int err = (int)ZREAD(*pzlib_filefunc_def,filestream,&c,1);
+ int err = (int)ZREAD64(*pzlib_filefunc_def,filestream,&c,1);
if (err==1)
{
*pi = (int)c;
@@ -355,7 +361,7 @@
}
else
{
- if (ZERROR(*pzlib_filefunc_def,filestream))
+ if (ZERROR64(*pzlib_filefunc_def,filestream))
return ZIP_ERRNO;
else
return ZIP_EOF;
@@ -366,25 +372,19 @@
/* ===========================================================================
Reads a long in LSB order from the given gz_stream. Sets
*/
-local int ziplocal_getShort OF((
- const zlib_filefunc_def* pzlib_filefunc_def,
- voidpf filestream,
- uLong *pX));
+local int zip64local_getShort OF((const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, uLong *pX));
-local int ziplocal_getShort (pzlib_filefunc_def,filestream,pX)
- const zlib_filefunc_def* pzlib_filefunc_def;
- voidpf filestream;
- uLong *pX;
+local int zip64local_getShort (const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, uLong* pX)
{
uLong x ;
- int i;
+ int i = 0;
int err;
- err = ziplocal_getByte(pzlib_filefunc_def,filestream,&i);
+ err = zip64local_getByte(pzlib_filefunc_def,filestream,&i);
x = (uLong)i;
if (err==ZIP_OK)
- err = ziplocal_getByte(pzlib_filefunc_def,filestream,&i);
+ err = zip64local_getByte(pzlib_filefunc_def,filestream,&i);
x += ((uLong)i)<<8;
if (err==ZIP_OK)
@@ -394,33 +394,27 @@
return err;
}
-local int ziplocal_getLong OF((
- const zlib_filefunc_def* pzlib_filefunc_def,
- voidpf filestream,
- uLong *pX));
+local int zip64local_getLong OF((const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, uLong *pX));
-local int ziplocal_getLong (pzlib_filefunc_def,filestream,pX)
- const zlib_filefunc_def* pzlib_filefunc_def;
- voidpf filestream;
- uLong *pX;
+local int zip64local_getLong (const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, uLong* pX)
{
uLong x ;
- int i;
+ int i = 0;
int err;
- err = ziplocal_getByte(pzlib_filefunc_def,filestream,&i);
+ err = zip64local_getByte(pzlib_filefunc_def,filestream,&i);
x = (uLong)i;
if (err==ZIP_OK)
- err = ziplocal_getByte(pzlib_filefunc_def,filestream,&i);
+ err = zip64local_getByte(pzlib_filefunc_def,filestream,&i);
x += ((uLong)i)<<8;
if (err==ZIP_OK)
- err = ziplocal_getByte(pzlib_filefunc_def,filestream,&i);
+ err = zip64local_getByte(pzlib_filefunc_def,filestream,&i);
x += ((uLong)i)<<16;
if (err==ZIP_OK)
- err = ziplocal_getByte(pzlib_filefunc_def,filestream,&i);
+ err = zip64local_getByte(pzlib_filefunc_def,filestream,&i);
x += ((uLong)i)<<24;
if (err==ZIP_OK)
@@ -430,6 +424,54 @@
return err;
}
+local int zip64local_getLong64 OF((const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, ZPOS64_T *pX));
+
+
+local int zip64local_getLong64 (const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, ZPOS64_T *pX)
+{
+ ZPOS64_T x;
+ int i = 0;
+ int err;
+
+ err = zip64local_getByte(pzlib_filefunc_def,filestream,&i);
+ x = (ZPOS64_T)i;
+
+ if (err==ZIP_OK)
+ err = zip64local_getByte(pzlib_filefunc_def,filestream,&i);
+ x += ((ZPOS64_T)i)<<8;
+
+ if (err==ZIP_OK)
+ err = zip64local_getByte(pzlib_filefunc_def,filestream,&i);
+ x += ((ZPOS64_T)i)<<16;
+
+ if (err==ZIP_OK)
+ err = zip64local_getByte(pzlib_filefunc_def,filestream,&i);
+ x += ((ZPOS64_T)i)<<24;
+
+ if (err==ZIP_OK)
+ err = zip64local_getByte(pzlib_filefunc_def,filestream,&i);
+ x += ((ZPOS64_T)i)<<32;
+
+ if (err==ZIP_OK)
+ err = zip64local_getByte(pzlib_filefunc_def,filestream,&i);
+ x += ((ZPOS64_T)i)<<40;
+
+ if (err==ZIP_OK)
+ err = zip64local_getByte(pzlib_filefunc_def,filestream,&i);
+ x += ((ZPOS64_T)i)<<48;
+
+ if (err==ZIP_OK)
+ err = zip64local_getByte(pzlib_filefunc_def,filestream,&i);
+ x += ((ZPOS64_T)i)<<56;
+
+ if (err==ZIP_OK)
+ *pX = x;
+ else
+ *pX = 0;
+
+ return err;
+}
+
#ifndef BUFREADCOMMENT
#define BUFREADCOMMENT (0x400)
#endif
@@ -437,87 +479,391 @@
Locate the Central directory of a zipfile (at the end, just before
the global comment)
*/
-local uLong ziplocal_SearchCentralDir OF((
- const zlib_filefunc_def* pzlib_filefunc_def,
- voidpf filestream));
+local ZPOS64_T zip64local_SearchCentralDir OF((const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream));
-local uLong ziplocal_SearchCentralDir(pzlib_filefunc_def,filestream)
- const zlib_filefunc_def* pzlib_filefunc_def;
- voidpf filestream;
+local ZPOS64_T zip64local_SearchCentralDir(const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream)
{
- unsigned char* buf;
- uLong uSizeFile;
- uLong uBackRead;
- uLong uMaxBack=0xffff; /* maximum size of global comment */
- uLong uPosFound=0;
+ unsigned char* buf;
+ ZPOS64_T uSizeFile;
+ ZPOS64_T uBackRead;
+ ZPOS64_T uMaxBack=0xffff; /* maximum size of global comment */
+ ZPOS64_T uPosFound=0;
- if (ZSEEK(*pzlib_filefunc_def,filestream,0,ZLIB_FILEFUNC_SEEK_END) != 0)
- return 0;
+ if (ZSEEK64(*pzlib_filefunc_def,filestream,0,ZLIB_FILEFUNC_SEEK_END) != 0)
+ return 0;
- uSizeFile = ZTELL(*pzlib_filefunc_def,filestream);
+ uSizeFile = ZTELL64(*pzlib_filefunc_def,filestream);
- if (uMaxBack>uSizeFile)
- uMaxBack = uSizeFile;
+ if (uMaxBack>uSizeFile)
+ uMaxBack = uSizeFile;
- buf = (unsigned char*)ALLOC(BUFREADCOMMENT+4);
- if (buf==NULL)
- return 0;
+ buf = (unsigned char*)ALLOC(BUFREADCOMMENT+4);
+ if (buf==NULL)
+ return 0;
- uBackRead = 4;
- while (uBackRead<uMaxBack)
- {
- uLong uReadSize,uReadPos ;
- int i;
- if (uBackRead+BUFREADCOMMENT>uMaxBack)
- uBackRead = uMaxBack;
- else
- uBackRead+=BUFREADCOMMENT;
- uReadPos = uSizeFile-uBackRead ;
+ uBackRead = 4;
+ while (uBackRead<uMaxBack)
+ {
+ uLong uReadSize;
+ ZPOS64_T uReadPos ;
+ int i;
+ if (uBackRead+BUFREADCOMMENT>uMaxBack)
+ uBackRead = uMaxBack;
+ else
+ uBackRead+=BUFREADCOMMENT;
+ uReadPos = uSizeFile-uBackRead ;
- uReadSize = ((BUFREADCOMMENT+4) < (uSizeFile-uReadPos)) ?
- (BUFREADCOMMENT+4) : (uSizeFile-uReadPos);
- if (ZSEEK(*pzlib_filefunc_def,filestream,uReadPos,ZLIB_FILEFUNC_SEEK_SET)!=0)
- break;
+ uReadSize = ((BUFREADCOMMENT+4) < (uSizeFile-uReadPos)) ?
+ (BUFREADCOMMENT+4) : (uLong)(uSizeFile-uReadPos);
+ if (ZSEEK64(*pzlib_filefunc_def,filestream,uReadPos,ZLIB_FILEFUNC_SEEK_SET)!=0)
+ break;
- if (ZREAD(*pzlib_filefunc_def,filestream,buf,uReadSize)!=uReadSize)
- break;
+ if (ZREAD64(*pzlib_filefunc_def,filestream,buf,uReadSize)!=uReadSize)
+ break;
- for (i=(int)uReadSize-3; (i--)>0;)
- if (((*(buf+i))==0x50) && ((*(buf+i+1))==0x4b) &&
- ((*(buf+i+2))==0x05) && ((*(buf+i+3))==0x06))
- {
- uPosFound = uReadPos+i;
- break;
- }
+ for (i=(int)uReadSize-3; (i--)>0;)
+ if (((*(buf+i))==0x50) && ((*(buf+i+1))==0x4b) &&
+ ((*(buf+i+2))==0x05) && ((*(buf+i+3))==0x06))
+ {
+ uPosFound = uReadPos+i;
+ break;
+ }
- if (uPosFound!=0)
- break;
- }
- TRYFREE(buf);
- return uPosFound;
+ if (uPosFound!=0)
+ break;
+ }
+ TRYFREE(buf);
+ return uPosFound;
}
+
+/*
+Locate the End of Zip64 Central directory locator and from there find the CD of a zipfile (at the end, just before
+the global comment)
+*/
+local ZPOS64_T zip64local_SearchCentralDir64 OF((const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream));
+
+local ZPOS64_T zip64local_SearchCentralDir64(const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream)
+{
+ unsigned char* buf;
+ ZPOS64_T uSizeFile;
+ ZPOS64_T uBackRead;
+ ZPOS64_T uMaxBack=0xffff; /* maximum size of global comment */
+ ZPOS64_T uPosFound=0;
+ uLong uL;
+ ZPOS64_T relativeOffset;
+
+ if (ZSEEK64(*pzlib_filefunc_def,filestream,0,ZLIB_FILEFUNC_SEEK_END) != 0)
+ return 0;
+
+ uSizeFile = ZTELL64(*pzlib_filefunc_def,filestream);
+
+ if (uMaxBack>uSizeFile)
+ uMaxBack = uSizeFile;
+
+ buf = (unsigned char*)ALLOC(BUFREADCOMMENT+4);
+ if (buf==NULL)
+ return 0;
+
+ uBackRead = 4;
+ while (uBackRead<uMaxBack)
+ {
+ uLong uReadSize;
+ ZPOS64_T uReadPos;
+ int i;
+ if (uBackRead+BUFREADCOMMENT>uMaxBack)
+ uBackRead = uMaxBack;
+ else
+ uBackRead+=BUFREADCOMMENT;
+ uReadPos = uSizeFile-uBackRead ;
+
+ uReadSize = ((BUFREADCOMMENT+4) < (uSizeFile-uReadPos)) ?
+ (BUFREADCOMMENT+4) : (uLong)(uSizeFile-uReadPos);
+ if (ZSEEK64(*pzlib_filefunc_def,filestream,uReadPos,ZLIB_FILEFUNC_SEEK_SET)!=0)
+ break;
+
+ if (ZREAD64(*pzlib_filefunc_def,filestream,buf,uReadSize)!=uReadSize)
+ break;
+
+ for (i=(int)uReadSize-3; (i--)>0;)
+ {
+ // Signature "0x07064b50" Zip64 end of central directory locater
+ if (((*(buf+i))==0x50) && ((*(buf+i+1))==0x4b) && ((*(buf+i+2))==0x06) && ((*(buf+i+3))==0x07))
+ {
+ uPosFound = uReadPos+i;
+ break;
+ }
+ }
+
+ if (uPosFound!=0)
+ break;
+ }
+
+ TRYFREE(buf);
+ if (uPosFound == 0)
+ return 0;
+
+ /* Zip64 end of central directory locator */
+ if (ZSEEK64(*pzlib_filefunc_def,filestream, uPosFound,ZLIB_FILEFUNC_SEEK_SET)!=0)
+ return 0;
+
+ /* the signature, already checked */
+ if (zip64local_getLong(pzlib_filefunc_def,filestream,&uL)!=ZIP_OK)
+ return 0;
+
+ /* number of the disk with the start of the zip64 end of central directory */
+ if (zip64local_getLong(pzlib_filefunc_def,filestream,&uL)!=ZIP_OK)
+ return 0;
+ if (uL != 0)
+ return 0;
+
+ /* relative offset of the zip64 end of central directory record */
+ if (zip64local_getLong64(pzlib_filefunc_def,filestream,&relativeOffset)!=ZIP_OK)
+ return 0;
+
+ /* total number of disks */
+ if (zip64local_getLong(pzlib_filefunc_def,filestream,&uL)!=ZIP_OK)
+ return 0;
+ if (uL != 1)
+ return 0;
+
+ /* Goto Zip64 end of central directory record */
+ if (ZSEEK64(*pzlib_filefunc_def,filestream, relativeOffset,ZLIB_FILEFUNC_SEEK_SET)!=0)
+ return 0;
+
+ /* the signature */
+ if (zip64local_getLong(pzlib_filefunc_def,filestream,&uL)!=ZIP_OK)
+ return 0;
+
+ if (uL != 0x06064b50) // signature of 'Zip64 end of central directory'
+ return 0;
+
+ return relativeOffset;
+}
+
+int LoadCentralDirectoryRecord(zip64_internal* pziinit)
+{
+ int err=ZIP_OK;
+ ZPOS64_T byte_before_the_zipfile;/* byte before the zipfile, (>0 for sfx)*/
+
+ ZPOS64_T size_central_dir; /* size of the central directory */
+ ZPOS64_T offset_central_dir; /* offset of start of central directory */
+ ZPOS64_T central_pos;
+ uLong uL;
+
+ uLong number_disk; /* number of the current dist, used for
+ spaning ZIP, unsupported, always 0*/
+ uLong number_disk_with_CD; /* number the the disk with central dir, used
+ for spaning ZIP, unsupported, always 0*/
+ ZPOS64_T number_entry;
+ ZPOS64_T number_entry_CD; /* total number of entries in
+ the central dir
+ (same than number_entry on nospan) */
+ uLong VersionMadeBy;
+ uLong VersionNeeded;
+ uLong size_comment;
+
+ int hasZIP64Record = 0;
+
+ // check first if we find a ZIP64 record
+ central_pos = zip64local_SearchCentralDir64(&pziinit->z_filefunc,pziinit->filestream);
+ if(central_pos > 0)
+ {
+ hasZIP64Record = 1;
+ }
+ else if(central_pos == 0)
+ {
+ central_pos = zip64local_SearchCentralDir(&pziinit->z_filefunc,pziinit->filestream);
+ }
+
+/* disable to allow appending to empty ZIP archive
+ if (central_pos==0)
+ err=ZIP_ERRNO;
+*/
+
+ if(hasZIP64Record)
+ {
+ ZPOS64_T sizeEndOfCentralDirectory;
+ if (ZSEEK64(pziinit->z_filefunc, pziinit->filestream, central_pos, ZLIB_FILEFUNC_SEEK_SET) != 0)
+ err=ZIP_ERRNO;
+
+ /* the signature, already checked */
+ if (zip64local_getLong(&pziinit->z_filefunc, pziinit->filestream,&uL)!=ZIP_OK)
+ err=ZIP_ERRNO;
+
+ /* size of zip64 end of central directory record */
+ if (zip64local_getLong64(&pziinit->z_filefunc, pziinit->filestream, &sizeEndOfCentralDirectory)!=ZIP_OK)
+ err=ZIP_ERRNO;
+
+ /* version made by */
+ if (zip64local_getShort(&pziinit->z_filefunc, pziinit->filestream, &VersionMadeBy)!=ZIP_OK)
+ err=ZIP_ERRNO;
+
+ /* version needed to extract */
+ if (zip64local_getShort(&pziinit->z_filefunc, pziinit->filestream, &VersionNeeded)!=ZIP_OK)
+ err=ZIP_ERRNO;
+
+ /* number of this disk */
+ if (zip64local_getLong(&pziinit->z_filefunc, pziinit->filestream,&number_disk)!=ZIP_OK)
+ err=ZIP_ERRNO;
+
+ /* number of the disk with the start of the central directory */
+ if (zip64local_getLong(&pziinit->z_filefunc, pziinit->filestream,&number_disk_with_CD)!=ZIP_OK)
+ err=ZIP_ERRNO;
+
+ /* total number of entries in the central directory on this disk */
+ if (zip64local_getLong64(&pziinit->z_filefunc, pziinit->filestream, &number_entry)!=ZIP_OK)
+ err=ZIP_ERRNO;
+
+ /* total number of entries in the central directory */
+ if (zip64local_getLong64(&pziinit->z_filefunc, pziinit->filestream,&number_entry_CD)!=ZIP_OK)
+ err=ZIP_ERRNO;
+
+ if ((number_entry_CD!=number_entry) || (number_disk_with_CD!=0) || (number_disk!=0))
+ err=ZIP_BADZIPFILE;
+
+ /* size of the central directory */
+ if (zip64local_getLong64(&pziinit->z_filefunc, pziinit->filestream,&size_central_dir)!=ZIP_OK)
+ err=ZIP_ERRNO;
+
+ /* offset of start of central directory with respect to the
+ starting disk number */
+ if (zip64local_getLong64(&pziinit->z_filefunc, pziinit->filestream,&offset_central_dir)!=ZIP_OK)
+ err=ZIP_ERRNO;
+
+ // TODO..
+ // read the comment from the standard central header.
+ size_comment = 0;
+ }
+ else
+ {
+ // Read End of central Directory info
+ if (ZSEEK64(pziinit->z_filefunc, pziinit->filestream, central_pos,ZLIB_FILEFUNC_SEEK_SET)!=0)
+ err=ZIP_ERRNO;
+
+ /* the signature, already checked */
+ if (zip64local_getLong(&pziinit->z_filefunc, pziinit->filestream,&uL)!=ZIP_OK)
+ err=ZIP_ERRNO;
+
+ /* number of this disk */
+ if (zip64local_getShort(&pziinit->z_filefunc, pziinit->filestream,&number_disk)!=ZIP_OK)
+ err=ZIP_ERRNO;
+
+ /* number of the disk with the start of the central directory */
+ if (zip64local_getShort(&pziinit->z_filefunc, pziinit->filestream,&number_disk_with_CD)!=ZIP_OK)
+ err=ZIP_ERRNO;
+
+ /* total number of entries in the central dir on this disk */
+ number_entry = 0;
+ if (zip64local_getShort(&pziinit->z_filefunc, pziinit->filestream, &uL)!=ZIP_OK)
+ err=ZIP_ERRNO;
+ else
+ number_entry = uL;
+
+ /* total number of entries in the central dir */
+ number_entry_CD = 0;
+ if (zip64local_getShort(&pziinit->z_filefunc, pziinit->filestream, &uL)!=ZIP_OK)
+ err=ZIP_ERRNO;
+ else
+ number_entry_CD = uL;
+
+ if ((number_entry_CD!=number_entry) || (number_disk_with_CD!=0) || (number_disk!=0))
+ err=ZIP_BADZIPFILE;
+
+ /* size of the central directory */
+ size_central_dir = 0;
+ if (zip64local_getLong(&pziinit->z_filefunc, pziinit->filestream, &uL)!=ZIP_OK)
+ err=ZIP_ERRNO;
+ else
+ size_central_dir = uL;
+
+ /* offset of start of central directory with respect to the starting disk number */
+ offset_central_dir = 0;
+ if (zip64local_getLong(&pziinit->z_filefunc, pziinit->filestream, &uL)!=ZIP_OK)
+ err=ZIP_ERRNO;
+ else
+ offset_central_dir = uL;
+
+
+ /* zipfile global comment length */
+ if (zip64local_getShort(&pziinit->z_filefunc, pziinit->filestream, &size_comment)!=ZIP_OK)
+ err=ZIP_ERRNO;
+ }
+
+ if ((central_pos<offset_central_dir+size_central_dir) &&
+ (err==ZIP_OK))
+ err=ZIP_BADZIPFILE;
+
+ if (err!=ZIP_OK)
+ {
+ ZCLOSE64(pziinit->z_filefunc, pziinit->filestream);
+ return ZIP_ERRNO;
+ }
+
+ if (size_comment>0)
+ {
+ pziinit->globalcomment = (char*)ALLOC(size_comment+1);
+ if (pziinit->globalcomment)
+ {
+ size_comment = ZREAD64(pziinit->z_filefunc, pziinit->filestream, pziinit->globalcomment,size_comment);
+ pziinit->globalcomment[size_comment]=0;
+ }
+ }
+
+ byte_before_the_zipfile = central_pos - (offset_central_dir+size_central_dir);
+ pziinit->add_position_when_writting_offset = byte_before_the_zipfile;
+
+ {
+ ZPOS64_T size_central_dir_to_read = size_central_dir;
+ size_t buf_size = SIZEDATA_INDATABLOCK;
+ void* buf_read = (void*)ALLOC(buf_size);
+ if (ZSEEK64(pziinit->z_filefunc, pziinit->filestream, offset_central_dir + byte_before_the_zipfile, ZLIB_FILEFUNC_SEEK_SET) != 0)
+ err=ZIP_ERRNO;
+
+ while ((size_central_dir_to_read>0) && (err==ZIP_OK))
+ {
+ ZPOS64_T read_this = SIZEDATA_INDATABLOCK;
+ if (read_this > size_central_dir_to_read)
+ read_this = size_central_dir_to_read;
+
+ if (ZREAD64(pziinit->z_filefunc, pziinit->filestream,buf_read,(uLong)read_this) != read_this)
+ err=ZIP_ERRNO;
+
+ if (err==ZIP_OK)
+ err = add_data_in_datablock(&pziinit->central_dir,buf_read, (uLong)read_this);
+
+ size_central_dir_to_read-=read_this;
+ }
+ TRYFREE(buf_read);
+ }
+ pziinit->begin_pos = byte_before_the_zipfile;
+ pziinit->number_entry = number_entry_CD;
+
+ if (ZSEEK64(pziinit->z_filefunc, pziinit->filestream, offset_central_dir+byte_before_the_zipfile,ZLIB_FILEFUNC_SEEK_SET) != 0)
+ err=ZIP_ERRNO;
+
+ return err;
+}
+
+
#endif /* !NO_ADDFILEINEXISTINGZIP*/
+
/************************************************************/
-extern zipFile ZEXPORT zipOpen2 (pathname, append, globalcomment, pzlib_filefunc_def)
- const char *pathname;
- int append;
- zipcharpc* globalcomment;
- zlib_filefunc_def* pzlib_filefunc_def;
+extern zipFile ZEXPORT zipOpen3 (const void *pathname, int append, zipcharpc* globalcomment, zlib_filefunc64_32_def* pzlib_filefunc64_32_def)
{
- zip_internal ziinit;
- zip_internal* zi;
+ zip64_internal ziinit;
+ zip64_internal* zi;
int err=ZIP_OK;
-
- if (pzlib_filefunc_def==NULL)
- fill_fopen_filefunc(&ziinit.z_filefunc);
+ ziinit.z_filefunc.zseek32_file = NULL;
+ ziinit.z_filefunc.ztell32_file = NULL;
+ if (pzlib_filefunc64_32_def==NULL)
+ fill_fopen64_filefunc(&ziinit.z_filefunc.zfile_func64);
else
- ziinit.z_filefunc = *pzlib_filefunc_def;
+ ziinit.z_filefunc = *pzlib_filefunc64_32_def;
- ziinit.filestream = (*(ziinit.z_filefunc.zopen_file))
- (ziinit.z_filefunc.opaque,
+ ziinit.filestream = ZOPEN64(ziinit.z_filefunc,
pathname,
(append == APPEND_STATUS_CREATE) ?
(ZLIB_FILEFUNC_MODE_READ | ZLIB_FILEFUNC_MODE_WRITE | ZLIB_FILEFUNC_MODE_CREATE) :
@@ -525,7 +871,11 @@
if (ziinit.filestream == NULL)
return NULL;
- ziinit.begin_pos = ZTELL(ziinit.z_filefunc,ziinit.filestream);
+
+ if (append == APPEND_STATUS_CREATEAFTER)
+ ZSEEK64(ziinit.z_filefunc,ziinit.filestream,0,SEEK_END);
+
+ ziinit.begin_pos = ZTELL64(ziinit.z_filefunc,ziinit.filestream);
ziinit.in_opened_file_inzip = 0;
ziinit.ci.stream_initialised = 0;
ziinit.number_entry = 0;
@@ -533,10 +883,11 @@
init_linkedlist(&(ziinit.central_dir));
- zi = (zip_internal*)ALLOC(sizeof(zip_internal));
+
+ zi = (zip64_internal*)ALLOC(sizeof(zip64_internal));
if (zi==NULL)
{
- ZCLOSE(ziinit.z_filefunc,ziinit.filestream);
+ ZCLOSE64(ziinit.z_filefunc,ziinit.filestream);
return NULL;
}
@@ -545,122 +896,8 @@
ziinit.globalcomment = NULL;
if (append == APPEND_STATUS_ADDINZIP)
{
- uLong byte_before_the_zipfile;/* byte before the zipfile, (>0 for sfx)*/
-
- uLong size_central_dir; /* size of the central directory */
- uLong offset_central_dir; /* offset of start of central directory */
- uLong central_pos,uL;
-
- uLong number_disk; /* number of the current dist, used for
- spaning ZIP, unsupported, always 0*/
- uLong number_disk_with_CD; /* number the the disk with central dir, used
- for spaning ZIP, unsupported, always 0*/
- uLong number_entry;
- uLong number_entry_CD; /* total number of entries in
- the central dir
- (same than number_entry on nospan) */
- uLong size_comment;
-
- central_pos = ziplocal_SearchCentralDir(&ziinit.z_filefunc,ziinit.filestream);
- if (central_pos==0)
- err=ZIP_ERRNO;
-
- if (ZSEEK(ziinit.z_filefunc, ziinit.filestream,
- central_pos,ZLIB_FILEFUNC_SEEK_SET)!=0)
- err=ZIP_ERRNO;
-
- /* the signature, already checked */
- if (ziplocal_getLong(&ziinit.z_filefunc, ziinit.filestream,&uL)!=ZIP_OK)
- err=ZIP_ERRNO;
-
- /* number of this disk */
- if (ziplocal_getShort(&ziinit.z_filefunc, ziinit.filestream,&number_disk)!=ZIP_OK)
- err=ZIP_ERRNO;
-
- /* number of the disk with the start of the central directory */
- if (ziplocal_getShort(&ziinit.z_filefunc, ziinit.filestream,&number_disk_with_CD)!=ZIP_OK)
- err=ZIP_ERRNO;
-
- /* total number of entries in the central dir on this disk */
- if (ziplocal_getShort(&ziinit.z_filefunc, ziinit.filestream,&number_entry)!=ZIP_OK)
- err=ZIP_ERRNO;
-
- /* total number of entries in the central dir */
- if (ziplocal_getShort(&ziinit.z_filefunc, ziinit.filestream,&number_entry_CD)!=ZIP_OK)
- err=ZIP_ERRNO;
-
- if ((number_entry_CD!=number_entry) ||
- (number_disk_with_CD!=0) ||
- (number_disk!=0))
- err=ZIP_BADZIPFILE;
-
- /* size of the central directory */
- if (ziplocal_getLong(&ziinit.z_filefunc, ziinit.filestream,&size_central_dir)!=ZIP_OK)
- err=ZIP_ERRNO;
-
- /* offset of start of central directory with respect to the
- starting disk number */
- if (ziplocal_getLong(&ziinit.z_filefunc, ziinit.filestream,&offset_central_dir)!=ZIP_OK)
- err=ZIP_ERRNO;
-
- /* zipfile global comment length */
- if (ziplocal_getShort(&ziinit.z_filefunc, ziinit.filestream,&size_comment)!=ZIP_OK)
- err=ZIP_ERRNO;
-
- if ((central_pos<offset_central_dir+size_central_dir) &&
- (err==ZIP_OK))
- err=ZIP_BADZIPFILE;
-
- if (err!=ZIP_OK)
- {
- ZCLOSE(ziinit.z_filefunc, ziinit.filestream);
- return NULL;
- }
-
- if (size_comment>0)
- {
- ziinit.globalcomment = ALLOC(size_comment+1);
- if (ziinit.globalcomment)
- {
- size_comment = ZREAD(ziinit.z_filefunc, ziinit.filestream,ziinit.globalcomment,size_comment);
- ziinit.globalcomment[size_comment]=0;
- }
- }
-
- byte_before_the_zipfile = central_pos -
- (offset_central_dir+size_central_dir);
- ziinit.add_position_when_writting_offset = byte_before_the_zipfile;
-
- {
- uLong size_central_dir_to_read = size_central_dir;
- size_t buf_size = SIZEDATA_INDATABLOCK;
- void* buf_read = (void*)ALLOC(buf_size);
- if (ZSEEK(ziinit.z_filefunc, ziinit.filestream,
- offset_central_dir + byte_before_the_zipfile,
- ZLIB_FILEFUNC_SEEK_SET) != 0)
- err=ZIP_ERRNO;
-
- while ((size_central_dir_to_read>0) && (err==ZIP_OK))
- {
- uLong read_this = SIZEDATA_INDATABLOCK;
- if (read_this > size_central_dir_to_read)
- read_this = size_central_dir_to_read;
- if (ZREAD(ziinit.z_filefunc, ziinit.filestream,buf_read,read_this) != read_this)
- err=ZIP_ERRNO;
-
- if (err==ZIP_OK)
- err = add_data_in_datablock(&ziinit.central_dir,buf_read,
- (uLong)read_this);
- size_central_dir_to_read-=read_this;
- }
- TRYFREE(buf_read);
- }
- ziinit.begin_pos = byte_before_the_zipfile;
- ziinit.number_entry = number_entry_CD;
-
- if (ZSEEK(ziinit.z_filefunc, ziinit.filestream,
- offset_central_dir+byte_before_the_zipfile,ZLIB_FILEFUNC_SEEK_SET)!=0)
- err=ZIP_ERRNO;
+ // Read and Cache Central Directory Records
+ err = LoadCentralDirectoryRecord(&ziinit);
}
if (globalcomment)
@@ -684,37 +921,150 @@
}
}
-extern zipFile ZEXPORT zipOpen (pathname, append)
- const char *pathname;
- int append;
+extern zipFile ZEXPORT zipOpen2 (const char *pathname, int append, zipcharpc* globalcomment, zlib_filefunc_def* pzlib_filefunc32_def)
{
- return zipOpen2(pathname,append,NULL,NULL);
+ if (pzlib_filefunc32_def != NULL)
+ {
+ zlib_filefunc64_32_def zlib_filefunc64_32_def_fill;
+ fill_zlib_filefunc64_32_def_from_filefunc32(&zlib_filefunc64_32_def_fill,pzlib_filefunc32_def);
+ return zipOpen3(pathname, append, globalcomment, &zlib_filefunc64_32_def_fill);
+ }
+ else
+ return zipOpen3(pathname, append, globalcomment, NULL);
}
-extern int ZEXPORT zipOpenNewFileInZip3 (file, filename, zipfi,
- extrafield_local, size_extrafield_local,
- extrafield_global, size_extrafield_global,
- comment, method, level, raw,
- windowBits, memLevel, strategy,
- password, crcForCrypting)
- zipFile file;
- const char* filename;
- const zip_fileinfo* zipfi;
- const void* extrafield_local;
- uInt size_extrafield_local;
- const void* extrafield_global;
- uInt size_extrafield_global;
- const char* comment;
- int method;
- int level;
- int raw;
- int windowBits;
- int memLevel;
- int strategy;
- const char* password;
- uLong crcForCrypting;
+extern zipFile ZEXPORT zipOpen2_64 (const void *pathname, int append, zipcharpc* globalcomment, zlib_filefunc64_def* pzlib_filefunc_def)
{
- zip_internal* zi;
+ if (pzlib_filefunc_def != NULL)
+ {
+ zlib_filefunc64_32_def zlib_filefunc64_32_def_fill;
+ zlib_filefunc64_32_def_fill.zfile_func64 = *pzlib_filefunc_def;
+ zlib_filefunc64_32_def_fill.ztell32_file = NULL;
+ zlib_filefunc64_32_def_fill.zseek32_file = NULL;
+ return zipOpen3(pathname, append, globalcomment, &zlib_filefunc64_32_def_fill);
+ }
+ else
+ return zipOpen3(pathname, append, globalcomment, NULL);
+}
+
+
+
+extern zipFile ZEXPORT zipOpen (const char* pathname, int append)
+{
+ return zipOpen3((const void*)pathname,append,NULL,NULL);
+}
+
+extern zipFile ZEXPORT zipOpen64 (const void* pathname, int append)
+{
+ return zipOpen3(pathname,append,NULL,NULL);
+}
+
+int Write_LocalFileHeader(zip64_internal* zi, const char* filename, uInt size_extrafield_local, const void* extrafield_local)
+{
+ /* write the local header */
+ int err;
+ uInt size_filename = (uInt)strlen(filename);
+ uInt size_extrafield = size_extrafield_local;
+
+ err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)LOCALHEADERMAGIC, 4);
+
+ if (err==ZIP_OK)
+ {
+ if(zi->ci.zip64)
+ err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)45,2);/* version needed to extract */
+ else
+ err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)20,2);/* version needed to extract */
+ }
+
+ if (err==ZIP_OK)
+ err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->ci.flag,2);
+
+ if (err==ZIP_OK)
+ err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->ci.method,2);
+
+ if (err==ZIP_OK)
+ err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->ci.dosDate,4);
+
+ // CRC / Compressed size / Uncompressed size will be filled in later and rewritten later
+ if (err==ZIP_OK)
+ err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,4); /* crc 32, unknown */
+ if (err==ZIP_OK)
+ {
+ if(zi->ci.zip64)
+ err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0xFFFFFFFF,4); /* compressed size, unknown */
+ else
+ err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,4); /* compressed size, unknown */
+ }
+ if (err==ZIP_OK)
+ {
+ if(zi->ci.zip64)
+ err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0xFFFFFFFF,4); /* uncompressed size, unknown */
+ else
+ err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,4); /* uncompressed size, unknown */
+ }
+
+ if (err==ZIP_OK)
+ err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)size_filename,2);
+
+ if(zi->ci.zip64)
+ {
+ size_extrafield += 20;
+ }
+
+ if (err==ZIP_OK)
+ err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)size_extrafield,2);
+
+ if ((err==ZIP_OK) && (size_filename > 0))
+ {
+ if (ZWRITE64(zi->z_filefunc,zi->filestream,filename,size_filename)!=size_filename)
+ err = ZIP_ERRNO;
+ }
+
+ if ((err==ZIP_OK) && (size_extrafield_local > 0))
+ {
+ if (ZWRITE64(zi->z_filefunc, zi->filestream, extrafield_local, size_extrafield_local) != size_extrafield_local)
+ err = ZIP_ERRNO;
+ }
+
+
+ if ((err==ZIP_OK) && (zi->ci.zip64))
+ {
+ // write the Zip64 extended info
+ short HeaderID = 1;
+ short DataSize = 16;
+ ZPOS64_T CompressedSize = 0;
+ ZPOS64_T UncompressedSize = 0;
+
+ // Remember position of Zip64 extended info for the local file header. (needed when we update size after done with file)
+ zi->ci.pos_zip64extrainfo = ZTELL64(zi->z_filefunc,zi->filestream);
+
+ err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (short)HeaderID,2);
+ err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (short)DataSize,2);
+
+ err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (ZPOS64_T)UncompressedSize,8);
+ err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (ZPOS64_T)CompressedSize,8);
+ }
+
+ return err;
+}
+
+/*
+ NOTE.
+ When writing RAW the ZIP64 extended information in extrafield_local and extrafield_global needs to be stripped
+ before calling this function it can be done with zipRemoveExtraInfoBlock
+
+ It is not done here because then we need to realloc a new buffer since parameters are 'const' and I want to minimize
+ unnecessary allocations.
+ */
+extern int ZEXPORT zipOpenNewFileInZip4_64 (zipFile file, const char* filename, const zip_fileinfo* zipfi,
+ const void* extrafield_local, uInt size_extrafield_local,
+ const void* extrafield_global, uInt size_extrafield_global,
+ const char* comment, int method, int level, int raw,
+ int windowBits,int memLevel, int strategy,
+ const char* password, uLong crcForCrypting,
+ uLong versionMadeBy, uLong flagBase, int zip64)
+{
+ zip64_internal* zi;
uInt size_filename;
uInt size_comment;
uInt i;
@@ -727,10 +1077,16 @@
if (file == NULL)
return ZIP_PARAMERROR;
- if ((method!=0) && (method!=Z_DEFLATED))
- return ZIP_PARAMERROR;
- zi = (zip_internal*)file;
+#ifdef HAVE_BZIP2
+ if ((method!=0) && (method!=Z_DEFLATED) && (method!=Z_BZIP2ED))
+ return ZIP_PARAMERROR;
+#else
+ if ((method!=0) && (method!=Z_DEFLATED))
+ return ZIP_PARAMERROR;
+#endif
+
+ zi = (zip64_internal*)file;
if (zi->in_opened_file_inzip == 1)
{
@@ -739,7 +1095,6 @@
return err;
}
-
if (filename==NULL)
filename="-";
@@ -756,10 +1111,11 @@
{
if (zipfi->dosDate != 0)
zi->ci.dosDate = zipfi->dosDate;
- else zi->ci.dosDate = ziplocal_TmzDateToDosDate(&zipfi->tmz_date,zipfi->dosDate);
+ else
+ zi->ci.dosDate = zip64local_TmzDateToDosDate(&zipfi->tmz_date);
}
- zi->ci.flag = 0;
+ zi->ci.flag = flagBase;
if ((level==8) || (level==9))
zi->ci.flag |= 2;
if ((level==2))
@@ -775,37 +1131,43 @@
zi->ci.stream_initialised = 0;
zi->ci.pos_in_buffered_data = 0;
zi->ci.raw = raw;
- zi->ci.pos_local_header = ZTELL(zi->z_filefunc,zi->filestream) ;
- zi->ci.size_centralheader = SIZECENTRALHEADER + size_filename +
- size_extrafield_global + size_comment;
- zi->ci.central_header = (char*)ALLOC((uInt)zi->ci.size_centralheader);
+ zi->ci.pos_local_header = ZTELL64(zi->z_filefunc,zi->filestream);
- ziplocal_putValue_inmemory(zi->ci.central_header,(uLong)CENTRALHEADERMAGIC,4);
+ zi->ci.size_centralheader = SIZECENTRALHEADER + size_filename + size_extrafield_global + size_comment;
+ zi->ci.size_centralExtraFree = 32; // Extra space we have reserved in case we need to add ZIP64 extra info data
+
+ zi->ci.central_header = (char*)ALLOC((uInt)zi->ci.size_centralheader + zi->ci.size_centralExtraFree);
+
+ zi->ci.size_centralExtra = size_extrafield_global;
+ zip64local_putValue_inmemory(zi->ci.central_header,(uLong)CENTRALHEADERMAGIC,4);
/* version info */
- ziplocal_putValue_inmemory(zi->ci.central_header+4,(uLong)VERSIONMADEBY,2);
- ziplocal_putValue_inmemory(zi->ci.central_header+6,(uLong)20,2);
- ziplocal_putValue_inmemory(zi->ci.central_header+8,(uLong)zi->ci.flag,2);
- ziplocal_putValue_inmemory(zi->ci.central_header+10,(uLong)zi->ci.method,2);
- ziplocal_putValue_inmemory(zi->ci.central_header+12,(uLong)zi->ci.dosDate,4);
- ziplocal_putValue_inmemory(zi->ci.central_header+16,(uLong)0,4); /*crc*/
- ziplocal_putValue_inmemory(zi->ci.central_header+20,(uLong)0,4); /*compr size*/
- ziplocal_putValue_inmemory(zi->ci.central_header+24,(uLong)0,4); /*uncompr size*/
- ziplocal_putValue_inmemory(zi->ci.central_header+28,(uLong)size_filename,2);
- ziplocal_putValue_inmemory(zi->ci.central_header+30,(uLong)size_extrafield_global,2);
- ziplocal_putValue_inmemory(zi->ci.central_header+32,(uLong)size_comment,2);
- ziplocal_putValue_inmemory(zi->ci.central_header+34,(uLong)0,2); /*disk nm start*/
+ zip64local_putValue_inmemory(zi->ci.central_header+4,(uLong)versionMadeBy,2);
+ zip64local_putValue_inmemory(zi->ci.central_header+6,(uLong)20,2);
+ zip64local_putValue_inmemory(zi->ci.central_header+8,(uLong)zi->ci.flag,2);
+ zip64local_putValue_inmemory(zi->ci.central_header+10,(uLong)zi->ci.method,2);
+ zip64local_putValue_inmemory(zi->ci.central_header+12,(uLong)zi->ci.dosDate,4);
+ zip64local_putValue_inmemory(zi->ci.central_header+16,(uLong)0,4); /*crc*/
+ zip64local_putValue_inmemory(zi->ci.central_header+20,(uLong)0,4); /*compr size*/
+ zip64local_putValue_inmemory(zi->ci.central_header+24,(uLong)0,4); /*uncompr size*/
+ zip64local_putValue_inmemory(zi->ci.central_header+28,(uLong)size_filename,2);
+ zip64local_putValue_inmemory(zi->ci.central_header+30,(uLong)size_extrafield_global,2);
+ zip64local_putValue_inmemory(zi->ci.central_header+32,(uLong)size_comment,2);
+ zip64local_putValue_inmemory(zi->ci.central_header+34,(uLong)0,2); /*disk nm start*/
if (zipfi==NULL)
- ziplocal_putValue_inmemory(zi->ci.central_header+36,(uLong)0,2);
+ zip64local_putValue_inmemory(zi->ci.central_header+36,(uLong)0,2);
else
- ziplocal_putValue_inmemory(zi->ci.central_header+36,(uLong)zipfi->internal_fa,2);
+ zip64local_putValue_inmemory(zi->ci.central_header+36,(uLong)zipfi->internal_fa,2);
if (zipfi==NULL)
- ziplocal_putValue_inmemory(zi->ci.central_header+38,(uLong)0,4);
+ zip64local_putValue_inmemory(zi->ci.central_header+38,(uLong)0,4);
else
- ziplocal_putValue_inmemory(zi->ci.central_header+38,(uLong)zipfi->external_fa,4);
+ zip64local_putValue_inmemory(zi->ci.central_header+38,(uLong)zipfi->external_fa,4);
- ziplocal_putValue_inmemory(zi->ci.central_header+42,(uLong)zi->ci.pos_local_header- zi->add_position_when_writting_offset,4);
+ if(zi->ci.pos_local_header >= 0xffffffff)
+ zip64local_putValue_inmemory(zi->ci.central_header+42,(uLong)0xffffffff,4);
+ else
+ zip64local_putValue_inmemory(zi->ci.central_header+42,(uLong)zi->ci.pos_local_header - zi->add_position_when_writting_offset,4);
for (i=0;i<size_filename;i++)
*(zi->ci.central_header+SIZECENTRALHEADER+i) = *(filename+i);
@@ -820,63 +1182,66 @@
if (zi->ci.central_header == NULL)
return ZIP_INTERNALERROR;
- /* write the local header */
- err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)LOCALHEADERMAGIC,4);
+ zi->ci.zip64 = zip64;
+ zi->ci.totalCompressedData = 0;
+ zi->ci.totalUncompressedData = 0;
+ zi->ci.pos_zip64extrainfo = 0;
- if (err==ZIP_OK)
- err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)20,2);/* version needed to extract */
- if (err==ZIP_OK)
- err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->ci.flag,2);
+ err = Write_LocalFileHeader(zi, filename, size_extrafield_local, extrafield_local);
- if (err==ZIP_OK)
- err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->ci.method,2);
-
- if (err==ZIP_OK)
- err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->ci.dosDate,4);
-
- if (err==ZIP_OK)
- err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,4); /* crc 32, unknown */
- if (err==ZIP_OK)
- err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,4); /* compressed size, unknown */
- if (err==ZIP_OK)
- err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,4); /* uncompressed size, unknown */
-
- if (err==ZIP_OK)
- err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)size_filename,2);
-
- if (err==ZIP_OK)
- err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)size_extrafield_local,2);
-
- if ((err==ZIP_OK) && (size_filename>0))
- if (ZWRITE(zi->z_filefunc,zi->filestream,filename,size_filename)!=size_filename)
- err = ZIP_ERRNO;
-
- if ((err==ZIP_OK) && (size_extrafield_local>0))
- if (ZWRITE(zi->z_filefunc,zi->filestream,extrafield_local,size_extrafield_local)
- !=size_extrafield_local)
- err = ZIP_ERRNO;
+#ifdef HAVE_BZIP2
+ zi->ci.bstream.avail_in = (uInt)0;
+ zi->ci.bstream.avail_out = (uInt)Z_BUFSIZE;
+ zi->ci.bstream.next_out = (char*)zi->ci.buffered_data;
+ zi->ci.bstream.total_in_hi32 = 0;
+ zi->ci.bstream.total_in_lo32 = 0;
+ zi->ci.bstream.total_out_hi32 = 0;
+ zi->ci.bstream.total_out_lo32 = 0;
+#endif
zi->ci.stream.avail_in = (uInt)0;
zi->ci.stream.avail_out = (uInt)Z_BUFSIZE;
zi->ci.stream.next_out = zi->ci.buffered_data;
zi->ci.stream.total_in = 0;
zi->ci.stream.total_out = 0;
+ zi->ci.stream.data_type = Z_BINARY;
+#ifdef HAVE_BZIP2
+ if ((err==ZIP_OK) && (zi->ci.method == Z_DEFLATED || zi->ci.method == Z_BZIP2ED) && (!zi->ci.raw))
+#else
if ((err==ZIP_OK) && (zi->ci.method == Z_DEFLATED) && (!zi->ci.raw))
+#endif
{
- zi->ci.stream.zalloc = (alloc_func)0;
- zi->ci.stream.zfree = (free_func)0;
- zi->ci.stream.opaque = (voidpf)0;
+ if(zi->ci.method == Z_DEFLATED)
+ {
+ zi->ci.stream.zalloc = (alloc_func)0;
+ zi->ci.stream.zfree = (free_func)0;
+ zi->ci.stream.opaque = (voidpf)0;
- if (windowBits>0)
- windowBits = -windowBits;
+ if (windowBits>0)
+ windowBits = -windowBits;
- err = deflateInit2(&zi->ci.stream, level,
- Z_DEFLATED, windowBits, memLevel, strategy);
+ err = deflateInit2(&zi->ci.stream, level, Z_DEFLATED, windowBits, memLevel, strategy);
- if (err==Z_OK)
- zi->ci.stream_initialised = 1;
+ if (err==Z_OK)
+ zi->ci.stream_initialised = Z_DEFLATED;
+ }
+ else if(zi->ci.method == Z_BZIP2ED)
+ {
+#ifdef HAVE_BZIP2
+ // Init BZip stuff here
+ zi->ci.bstream.bzalloc = 0;
+ zi->ci.bstream.bzfree = 0;
+ zi->ci.bstream.opaque = (voidpf)0;
+
+ err = BZ2_bzCompressInit(&zi->ci.bstream, level, 0,35);
+ if(err == BZ_OK)
+ zi->ci.stream_initialised = Z_BZIP2ED;
+#endif
+ }
+
}
+
# ifndef NOCRYPT
zi->ci.crypt_header_size = 0;
if ((err==Z_OK) && (password != NULL))
@@ -890,7 +1255,7 @@
sizeHead=crypthead(password,bufHead,RAND_HEAD_LEN,zi->ci.keys,zi->ci.pcrc_32_tab,crcForCrypting);
zi->ci.crypt_header_size = sizeHead;
- if (ZWRITE(zi->z_filefunc,zi->filestream,bufHead,sizeHead) != sizeHead)
+ if (ZWRITE64(zi->z_filefunc,zi->filestream,bufHead,sizeHead) != sizeHead)
err = ZIP_ERRNO;
}
# endif
@@ -900,53 +1265,105 @@
return err;
}
-extern int ZEXPORT zipOpenNewFileInZip2(file, filename, zipfi,
- extrafield_local, size_extrafield_local,
- extrafield_global, size_extrafield_global,
- comment, method, level, raw)
- zipFile file;
- const char* filename;
- const zip_fileinfo* zipfi;
- const void* extrafield_local;
- uInt size_extrafield_local;
- const void* extrafield_global;
- uInt size_extrafield_global;
- const char* comment;
- int method;
- int level;
- int raw;
+extern int ZEXPORT zipOpenNewFileInZip4 (zipFile file, const char* filename, const zip_fileinfo* zipfi,
+ const void* extrafield_local, uInt size_extrafield_local,
+ const void* extrafield_global, uInt size_extrafield_global,
+ const char* comment, int method, int level, int raw,
+ int windowBits,int memLevel, int strategy,
+ const char* password, uLong crcForCrypting,
+ uLong versionMadeBy, uLong flagBase)
{
- return zipOpenNewFileInZip3 (file, filename, zipfi,
+ return zipOpenNewFileInZip4_64 (file, filename, zipfi,
+ extrafield_local, size_extrafield_local,
+ extrafield_global, size_extrafield_global,
+ comment, method, level, raw,
+ windowBits, memLevel, strategy,
+ password, crcForCrypting, versionMadeBy, flagBase, 0);
+}
+
+extern int ZEXPORT zipOpenNewFileInZip3 (zipFile file, const char* filename, const zip_fileinfo* zipfi,
+ const void* extrafield_local, uInt size_extrafield_local,
+ const void* extrafield_global, uInt size_extrafield_global,
+ const char* comment, int method, int level, int raw,
+ int windowBits,int memLevel, int strategy,
+ const char* password, uLong crcForCrypting)
+{
+ return zipOpenNewFileInZip4_64 (file, filename, zipfi,
+ extrafield_local, size_extrafield_local,
+ extrafield_global, size_extrafield_global,
+ comment, method, level, raw,
+ windowBits, memLevel, strategy,
+ password, crcForCrypting, VERSIONMADEBY, 0, 0);
+}
+
+extern int ZEXPORT zipOpenNewFileInZip3_64(zipFile file, const char* filename, const zip_fileinfo* zipfi,
+ const void* extrafield_local, uInt size_extrafield_local,
+ const void* extrafield_global, uInt size_extrafield_global,
+ const char* comment, int method, int level, int raw,
+ int windowBits,int memLevel, int strategy,
+ const char* password, uLong crcForCrypting, int zip64)
+{
+ return zipOpenNewFileInZip4_64 (file, filename, zipfi,
+ extrafield_local, size_extrafield_local,
+ extrafield_global, size_extrafield_global,
+ comment, method, level, raw,
+ windowBits, memLevel, strategy,
+ password, crcForCrypting, VERSIONMADEBY, 0, zip64);
+}
+
+extern int ZEXPORT zipOpenNewFileInZip2(zipFile file, const char* filename, const zip_fileinfo* zipfi,
+ const void* extrafield_local, uInt size_extrafield_local,
+ const void* extrafield_global, uInt size_extrafield_global,
+ const char* comment, int method, int level, int raw)
+{
+ return zipOpenNewFileInZip4_64 (file, filename, zipfi,
extrafield_local, size_extrafield_local,
extrafield_global, size_extrafield_global,
comment, method, level, raw,
-MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY,
- NULL, 0);
+ NULL, 0, VERSIONMADEBY, 0, 0);
}
-extern int ZEXPORT zipOpenNewFileInZip (file, filename, zipfi,
- extrafield_local, size_extrafield_local,
- extrafield_global, size_extrafield_global,
- comment, method, level)
- zipFile file;
- const char* filename;
- const zip_fileinfo* zipfi;
- const void* extrafield_local;
- uInt size_extrafield_local;
- const void* extrafield_global;
- uInt size_extrafield_global;
- const char* comment;
- int method;
- int level;
+extern int ZEXPORT zipOpenNewFileInZip2_64(zipFile file, const char* filename, const zip_fileinfo* zipfi,
+ const void* extrafield_local, uInt size_extrafield_local,
+ const void* extrafield_global, uInt size_extrafield_global,
+ const char* comment, int method, int level, int raw, int zip64)
{
- return zipOpenNewFileInZip2 (file, filename, zipfi,
+ return zipOpenNewFileInZip4_64 (file, filename, zipfi,
extrafield_local, size_extrafield_local,
extrafield_global, size_extrafield_global,
- comment, method, level, 0);
+ comment, method, level, raw,
+ -MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY,
+ NULL, 0, VERSIONMADEBY, 0, zip64);
}
-local int zipFlushWriteBuffer(zi)
- zip_internal* zi;
+extern int ZEXPORT zipOpenNewFileInZip64 (zipFile file, const char* filename, const zip_fileinfo* zipfi,
+ const void* extrafield_local, uInt size_extrafield_local,
+ const void*extrafield_global, uInt size_extrafield_global,
+ const char* comment, int method, int level, int zip64)
+{
+ return zipOpenNewFileInZip4_64 (file, filename, zipfi,
+ extrafield_local, size_extrafield_local,
+ extrafield_global, size_extrafield_global,
+ comment, method, level, 0,
+ -MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY,
+ NULL, 0, VERSIONMADEBY, 0, zip64);
+}
+
+extern int ZEXPORT zipOpenNewFileInZip (zipFile file, const char* filename, const zip_fileinfo* zipfi,
+ const void* extrafield_local, uInt size_extrafield_local,
+ const void*extrafield_global, uInt size_extrafield_global,
+ const char* comment, int method, int level)
+{
+ return zipOpenNewFileInZip4_64 (file, filename, zipfi,
+ extrafield_local, size_extrafield_local,
+ extrafield_global, size_extrafield_global,
+ comment, method, level, 0,
+ -MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY,
+ NULL, 0, VERSIONMADEBY, 0, 0);
+}
+
+local int zip64FlushWriteBuffer(zip64_internal* zi)
{
int err=ZIP_OK;
@@ -956,169 +1373,372 @@
uInt i;
int t;
for (i=0;i<zi->ci.pos_in_buffered_data;i++)
- zi->ci.buffered_data[i] = zencode(zi->ci.keys, zi->ci.pcrc_32_tab,
- zi->ci.buffered_data[i],t);
+ zi->ci.buffered_data[i] = zencode(zi->ci.keys, zi->ci.pcrc_32_tab, zi->ci.buffered_data[i],t);
#endif
}
- if (ZWRITE(zi->z_filefunc,zi->filestream,zi->ci.buffered_data,zi->ci.pos_in_buffered_data)
- !=zi->ci.pos_in_buffered_data)
+
+ if (ZWRITE64(zi->z_filefunc,zi->filestream,zi->ci.buffered_data,zi->ci.pos_in_buffered_data) != zi->ci.pos_in_buffered_data)
err = ZIP_ERRNO;
+
+ zi->ci.totalCompressedData += zi->ci.pos_in_buffered_data;
+
+#ifdef HAVE_BZIP2
+ if(zi->ci.method == Z_BZIP2ED)
+ {
+ zi->ci.totalUncompressedData += zi->ci.bstream.total_in_lo32;
+ zi->ci.bstream.total_in_lo32 = 0;
+ zi->ci.bstream.total_in_hi32 = 0;
+ }
+ else
+#endif
+ {
+ zi->ci.totalUncompressedData += zi->ci.stream.total_in;
+ zi->ci.stream.total_in = 0;
+ }
+
+
zi->ci.pos_in_buffered_data = 0;
+
return err;
}
-extern int ZEXPORT zipWriteInFileInZip (file, buf, len)
- zipFile file;
- const void* buf;
- unsigned len;
+extern int ZEXPORT zipWriteInFileInZip (zipFile file,const void* buf,unsigned int len)
{
- zip_internal* zi;
+ zip64_internal* zi;
int err=ZIP_OK;
if (file == NULL)
return ZIP_PARAMERROR;
- zi = (zip_internal*)file;
+ zi = (zip64_internal*)file;
if (zi->in_opened_file_inzip == 0)
return ZIP_PARAMERROR;
- zi->ci.stream.next_in = (void*)buf;
- zi->ci.stream.avail_in = len;
- zi->ci.crc32 = crc32(zi->ci.crc32,buf,len);
+ zi->ci.crc32 = crc32(zi->ci.crc32,buf,(uInt)len);
- while ((err==ZIP_OK) && (zi->ci.stream.avail_in>0))
+#ifdef HAVE_BZIP2
+ if(zi->ci.method == Z_BZIP2ED && (!zi->ci.raw))
{
- if (zi->ci.stream.avail_out == 0)
+ zi->ci.bstream.next_in = (void*)buf;
+ zi->ci.bstream.avail_in = len;
+ err = BZ_RUN_OK;
+
+ while ((err==BZ_RUN_OK) && (zi->ci.bstream.avail_in>0))
+ {
+ if (zi->ci.bstream.avail_out == 0)
{
- if (zipFlushWriteBuffer(zi) == ZIP_ERRNO)
- err = ZIP_ERRNO;
- zi->ci.stream.avail_out = (uInt)Z_BUFSIZE;
- zi->ci.stream.next_out = zi->ci.buffered_data;
+ if (zip64FlushWriteBuffer(zi) == ZIP_ERRNO)
+ err = ZIP_ERRNO;
+ zi->ci.bstream.avail_out = (uInt)Z_BUFSIZE;
+ zi->ci.bstream.next_out = (char*)zi->ci.buffered_data;
}
- if(err != ZIP_OK)
- break;
+ if(err != BZ_RUN_OK)
+ break;
- if ((zi->ci.method == Z_DEFLATED) && (!zi->ci.raw))
+ if ((zi->ci.method == Z_BZIP2ED) && (!zi->ci.raw))
{
- uLong uTotalOutBefore = zi->ci.stream.total_out;
- err=deflate(&zi->ci.stream, Z_NO_FLUSH);
- zi->ci.pos_in_buffered_data += (uInt)(zi->ci.stream.total_out - uTotalOutBefore) ;
+ uLong uTotalOutBefore_lo = zi->ci.bstream.total_out_lo32;
+// uLong uTotalOutBefore_hi = zi->ci.bstream.total_out_hi32;
+ err=BZ2_bzCompress(&zi->ci.bstream, BZ_RUN);
+ zi->ci.pos_in_buffered_data += (uInt)(zi->ci.bstream.total_out_lo32 - uTotalOutBefore_lo) ;
}
- else
- {
- uInt copy_this,i;
- if (zi->ci.stream.avail_in < zi->ci.stream.avail_out)
- copy_this = zi->ci.stream.avail_in;
- else
- copy_this = zi->ci.stream.avail_out;
- for (i=0;i<copy_this;i++)
- *(((char*)zi->ci.stream.next_out)+i) =
- *(((const char*)zi->ci.stream.next_in)+i);
- {
- zi->ci.stream.avail_in -= copy_this;
- zi->ci.stream.avail_out-= copy_this;
- zi->ci.stream.next_in+= copy_this;
- zi->ci.stream.next_out+= copy_this;
- zi->ci.stream.total_in+= copy_this;
- zi->ci.stream.total_out+= copy_this;
- zi->ci.pos_in_buffered_data += copy_this;
- }
- }
+ }
+
+ if(err == BZ_RUN_OK)
+ err = ZIP_OK;
+ }
+ else
+#endif
+ {
+ zi->ci.stream.next_in = (Bytef*)buf;
+ zi->ci.stream.avail_in = len;
+
+ while ((err==ZIP_OK) && (zi->ci.stream.avail_in>0))
+ {
+ if (zi->ci.stream.avail_out == 0)
+ {
+ if (zip64FlushWriteBuffer(zi) == ZIP_ERRNO)
+ err = ZIP_ERRNO;
+ zi->ci.stream.avail_out = (uInt)Z_BUFSIZE;
+ zi->ci.stream.next_out = zi->ci.buffered_data;
+ }
+
+
+ if(err != ZIP_OK)
+ break;
+
+ if ((zi->ci.method == Z_DEFLATED) && (!zi->ci.raw))
+ {
+ uLong uTotalOutBefore = zi->ci.stream.total_out;
+ err=deflate(&zi->ci.stream, Z_NO_FLUSH);
+ if(uTotalOutBefore > zi->ci.stream.total_out)
+ {
+ int bBreak = 0;
+ bBreak++;
+ }
+
+ zi->ci.pos_in_buffered_data += (uInt)(zi->ci.stream.total_out - uTotalOutBefore) ;
+ }
+ else
+ {
+ uInt copy_this,i;
+ if (zi->ci.stream.avail_in < zi->ci.stream.avail_out)
+ copy_this = zi->ci.stream.avail_in;
+ else
+ copy_this = zi->ci.stream.avail_out;
+
+ for (i = 0; i < copy_this; i++)
+ *(((char*)zi->ci.stream.next_out)+i) =
+ *(((const char*)zi->ci.stream.next_in)+i);
+ {
+ zi->ci.stream.avail_in -= copy_this;
+ zi->ci.stream.avail_out-= copy_this;
+ zi->ci.stream.next_in+= copy_this;
+ zi->ci.stream.next_out+= copy_this;
+ zi->ci.stream.total_in+= copy_this;
+ zi->ci.stream.total_out+= copy_this;
+ zi->ci.pos_in_buffered_data += copy_this;
+ }
+ }
+ }// while(...)
}
return err;
}
-extern int ZEXPORT zipCloseFileInZipRaw (file, uncompressed_size, crc32)
- zipFile file;
- uLong uncompressed_size;
- uLong crc32;
+extern int ZEXPORT zipCloseFileInZipRaw (zipFile file, uLong uncompressed_size, uLong crc32)
{
- zip_internal* zi;
- uLong compressed_size;
+ return zipCloseFileInZipRaw64 (file, uncompressed_size, crc32);
+}
+
+extern int ZEXPORT zipCloseFileInZipRaw64 (zipFile file, ZPOS64_T uncompressed_size, uLong crc32)
+{
+ zip64_internal* zi;
+ ZPOS64_T compressed_size;
+ uLong invalidValue = 0xffffffff;
+ short datasize = 0;
int err=ZIP_OK;
if (file == NULL)
return ZIP_PARAMERROR;
- zi = (zip_internal*)file;
+ zi = (zip64_internal*)file;
if (zi->in_opened_file_inzip == 0)
return ZIP_PARAMERROR;
zi->ci.stream.avail_in = 0;
if ((zi->ci.method == Z_DEFLATED) && (!zi->ci.raw))
- while (err==ZIP_OK)
+ {
+ while (err==ZIP_OK)
+ {
+ uLong uTotalOutBefore;
+ if (zi->ci.stream.avail_out == 0)
+ {
+ if (zip64FlushWriteBuffer(zi) == ZIP_ERRNO)
+ err = ZIP_ERRNO;
+ zi->ci.stream.avail_out = (uInt)Z_BUFSIZE;
+ zi->ci.stream.next_out = zi->ci.buffered_data;
+ }
+ uTotalOutBefore = zi->ci.stream.total_out;
+ err=deflate(&zi->ci.stream, Z_FINISH);
+ zi->ci.pos_in_buffered_data += (uInt)(zi->ci.stream.total_out - uTotalOutBefore) ;
+ }
+ }
+ else if ((zi->ci.method == Z_BZIP2ED) && (!zi->ci.raw))
{
+#ifdef HAVE_BZIP2
+ err = BZ_FINISH_OK;
+ while (err==BZ_FINISH_OK)
+ {
uLong uTotalOutBefore;
- if (zi->ci.stream.avail_out == 0)
+ if (zi->ci.bstream.avail_out == 0)
{
- if (zipFlushWriteBuffer(zi) == ZIP_ERRNO)
- err = ZIP_ERRNO;
- zi->ci.stream.avail_out = (uInt)Z_BUFSIZE;
- zi->ci.stream.next_out = zi->ci.buffered_data;
+ if (zip64FlushWriteBuffer(zi) == ZIP_ERRNO)
+ err = ZIP_ERRNO;
+ zi->ci.bstream.avail_out = (uInt)Z_BUFSIZE;
+ zi->ci.bstream.next_out = (char*)zi->ci.buffered_data;
}
- uTotalOutBefore = zi->ci.stream.total_out;
- err=deflate(&zi->ci.stream, Z_FINISH);
- zi->ci.pos_in_buffered_data += (uInt)(zi->ci.stream.total_out - uTotalOutBefore) ;
+ uTotalOutBefore = zi->ci.bstream.total_out_lo32;
+ err=BZ2_bzCompress(&zi->ci.bstream, BZ_FINISH);
+ if(err == BZ_STREAM_END)
+ err = Z_STREAM_END;
+
+ zi->ci.pos_in_buffered_data += (uInt)(zi->ci.bstream.total_out_lo32 - uTotalOutBefore);
+ }
+
+ if(err == BZ_FINISH_OK)
+ err = ZIP_OK;
+#endif
}
if (err==Z_STREAM_END)
err=ZIP_OK; /* this is normal */
if ((zi->ci.pos_in_buffered_data>0) && (err==ZIP_OK))
- if (zipFlushWriteBuffer(zi)==ZIP_ERRNO)
+ {
+ if (zip64FlushWriteBuffer(zi)==ZIP_ERRNO)
err = ZIP_ERRNO;
+ }
if ((zi->ci.method == Z_DEFLATED) && (!zi->ci.raw))
{
- err=deflateEnd(&zi->ci.stream);
+ int tmp_err = deflateEnd(&zi->ci.stream);
+ if (err == ZIP_OK)
+ err = tmp_err;
zi->ci.stream_initialised = 0;
}
+#ifdef HAVE_BZIP2
+ else if((zi->ci.method == Z_BZIP2ED) && (!zi->ci.raw))
+ {
+ int tmperr = BZ2_bzCompressEnd(&zi->ci.bstream);
+ if (err==ZIP_OK)
+ err = tmperr;
+ zi->ci.stream_initialised = 0;
+ }
+#endif
if (!zi->ci.raw)
{
crc32 = (uLong)zi->ci.crc32;
- uncompressed_size = (uLong)zi->ci.stream.total_in;
+ uncompressed_size = zi->ci.totalUncompressedData;
}
- compressed_size = (uLong)zi->ci.stream.total_out;
+ compressed_size = zi->ci.totalCompressedData;
+
# ifndef NOCRYPT
compressed_size += zi->ci.crypt_header_size;
# endif
- ziplocal_putValue_inmemory(zi->ci.central_header+16,crc32,4); /*crc*/
- ziplocal_putValue_inmemory(zi->ci.central_header+20,
- compressed_size,4); /*compr size*/
+ // update Current Item crc and sizes,
+ if(compressed_size >= 0xffffffff || uncompressed_size >= 0xffffffff || zi->ci.pos_local_header >= 0xffffffff)
+ {
+ /*version Made by*/
+ zip64local_putValue_inmemory(zi->ci.central_header+4,(uLong)45,2);
+ /*version needed*/
+ zip64local_putValue_inmemory(zi->ci.central_header+6,(uLong)45,2);
+
+ }
+
+ zip64local_putValue_inmemory(zi->ci.central_header+16,crc32,4); /*crc*/
+
+
+ if(compressed_size >= 0xffffffff)
+ zip64local_putValue_inmemory(zi->ci.central_header+20, invalidValue,4); /*compr size*/
+ else
+ zip64local_putValue_inmemory(zi->ci.central_header+20, compressed_size,4); /*compr size*/
+
+ /// set internal file attributes field
if (zi->ci.stream.data_type == Z_ASCII)
- ziplocal_putValue_inmemory(zi->ci.central_header+36,(uLong)Z_ASCII,2);
- ziplocal_putValue_inmemory(zi->ci.central_header+24,
- uncompressed_size,4); /*uncompr size*/
+ zip64local_putValue_inmemory(zi->ci.central_header+36,(uLong)Z_ASCII,2);
+
+ if(uncompressed_size >= 0xffffffff)
+ zip64local_putValue_inmemory(zi->ci.central_header+24, invalidValue,4); /*uncompr size*/
+ else
+ zip64local_putValue_inmemory(zi->ci.central_header+24, uncompressed_size,4); /*uncompr size*/
+
+ // Add ZIP64 extra info field for uncompressed size
+ if(uncompressed_size >= 0xffffffff)
+ datasize += 8;
+
+ // Add ZIP64 extra info field for compressed size
+ if(compressed_size >= 0xffffffff)
+ datasize += 8;
+
+ // Add ZIP64 extra info field for relative offset to local file header of current file
+ if(zi->ci.pos_local_header >= 0xffffffff)
+ datasize += 8;
+
+ if(datasize > 0)
+ {
+ char* p = NULL;
+
+ if((uLong)(datasize + 4) > zi->ci.size_centralExtraFree)
+ {
+ // we can not write more data to the buffer that we have room for.
+ return ZIP_BADZIPFILE;
+ }
+
+ p = zi->ci.central_header + zi->ci.size_centralheader;
+
+ // Add Extra Information Header for 'ZIP64 information'
+ zip64local_putValue_inmemory(p, 0x0001, 2); // HeaderID
+ p += 2;
+ zip64local_putValue_inmemory(p, datasize, 2); // DataSize
+ p += 2;
+
+ if(uncompressed_size >= 0xffffffff)
+ {
+ zip64local_putValue_inmemory(p, uncompressed_size, 8);
+ p += 8;
+ }
+
+ if(compressed_size >= 0xffffffff)
+ {
+ zip64local_putValue_inmemory(p, compressed_size, 8);
+ p += 8;
+ }
+
+ if(zi->ci.pos_local_header >= 0xffffffff)
+ {
+ zip64local_putValue_inmemory(p, zi->ci.pos_local_header, 8);
+ p += 8;
+ }
+
+ // Update how much extra free space we got in the memory buffer
+ // and increase the centralheader size so the new ZIP64 fields are included
+ // ( 4 below is the size of HeaderID and DataSize field )
+ zi->ci.size_centralExtraFree -= datasize + 4;
+ zi->ci.size_centralheader += datasize + 4;
+
+ // Update the extra info size field
+ zi->ci.size_centralExtra += datasize + 4;
+ zip64local_putValue_inmemory(zi->ci.central_header+30,(uLong)zi->ci.size_centralExtra,2);
+ }
if (err==ZIP_OK)
- err = add_data_in_datablock(&zi->central_dir,zi->ci.central_header,
- (uLong)zi->ci.size_centralheader);
+ err = add_data_in_datablock(&zi->central_dir, zi->ci.central_header, (uLong)zi->ci.size_centralheader);
+
free(zi->ci.central_header);
if (err==ZIP_OK)
{
- long cur_pos_inzip = ZTELL(zi->z_filefunc,zi->filestream);
- if (ZSEEK(zi->z_filefunc,zi->filestream,
- zi->ci.pos_local_header + 14,ZLIB_FILEFUNC_SEEK_SET)!=0)
+ // Update the LocalFileHeader with the new values.
+
+ ZPOS64_T cur_pos_inzip = ZTELL64(zi->z_filefunc,zi->filestream);
+
+ if (ZSEEK64(zi->z_filefunc,zi->filestream, zi->ci.pos_local_header + 14,ZLIB_FILEFUNC_SEEK_SET)!=0)
err = ZIP_ERRNO;
if (err==ZIP_OK)
- err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,crc32,4); /* crc 32, unknown */
+ err = zip64local_putValue(&zi->z_filefunc,zi->filestream,crc32,4); /* crc 32, unknown */
- if (err==ZIP_OK) /* compressed size, unknown */
- err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,compressed_size,4);
+ if(uncompressed_size >= 0xffffffff)
+ {
+ if(zi->ci.pos_zip64extrainfo > 0)
+ {
+ // Update the size in the ZIP64 extended field.
+ if (ZSEEK64(zi->z_filefunc,zi->filestream, zi->ci.pos_zip64extrainfo + 4,ZLIB_FILEFUNC_SEEK_SET)!=0)
+ err = ZIP_ERRNO;
- if (err==ZIP_OK) /* uncompressed size, unknown */
- err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,uncompressed_size,4);
+ if (err==ZIP_OK) /* compressed size, unknown */
+ err = zip64local_putValue(&zi->z_filefunc, zi->filestream, uncompressed_size, 8);
- if (ZSEEK(zi->z_filefunc,zi->filestream,
- cur_pos_inzip,ZLIB_FILEFUNC_SEEK_SET)!=0)
+ if (err==ZIP_OK) /* uncompressed size, unknown */
+ err = zip64local_putValue(&zi->z_filefunc, zi->filestream, compressed_size, 8);
+ }
+ }
+ else
+ {
+ if (err==ZIP_OK) /* compressed size, unknown */
+ err = zip64local_putValue(&zi->z_filefunc,zi->filestream,compressed_size,4);
+
+ if (err==ZIP_OK) /* uncompressed size, unknown */
+ err = zip64local_putValue(&zi->z_filefunc,zi->filestream,uncompressed_size,4);
+ }
+
+ if (ZSEEK64(zi->z_filefunc,zi->filestream, cur_pos_inzip,ZLIB_FILEFUNC_SEEK_SET)!=0)
err = ZIP_ERRNO;
}
@@ -1128,24 +1748,150 @@
return err;
}
-extern int ZEXPORT zipCloseFileInZip (file)
- zipFile file;
+extern int ZEXPORT zipCloseFileInZip (zipFile file)
{
return zipCloseFileInZipRaw (file,0,0);
}
-extern int ZEXPORT zipClose (file, global_comment)
- zipFile file;
- const char* global_comment;
+int Write_Zip64EndOfCentralDirectoryLocator(zip64_internal* zi, ZPOS64_T zip64eocd_pos_inzip)
{
- zip_internal* zi;
+ int err = ZIP_OK;
+ ZPOS64_T pos = zip64eocd_pos_inzip - zi->add_position_when_writting_offset;
+
+ err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)ZIP64ENDLOCHEADERMAGIC,4);
+
+ /*num disks*/
+ if (err==ZIP_OK) /* number of the disk with the start of the central directory */
+ err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,4);
+
+ /*relative offset*/
+ if (err==ZIP_OK) /* Relative offset to the Zip64EndOfCentralDirectory */
+ err = zip64local_putValue(&zi->z_filefunc,zi->filestream, pos,8);
+
+ /*total disks*/ /* Do not support spawning of disk so always say 1 here*/
+ if (err==ZIP_OK) /* number of the disk with the start of the central directory */
+ err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)1,4);
+
+ return err;
+}
+
+int Write_Zip64EndOfCentralDirectoryRecord(zip64_internal* zi, uLong size_centraldir, ZPOS64_T centraldir_pos_inzip)
+{
+ int err = ZIP_OK;
+
+ uLong Zip64DataSize = 44;
+
+ err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)ZIP64ENDHEADERMAGIC,4);
+
+ if (err==ZIP_OK) /* size of this 'zip64 end of central directory' */
+ err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(ZPOS64_T)Zip64DataSize,8); // why ZPOS64_T of this ?
+
+ if (err==ZIP_OK) /* version made by */
+ err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)45,2);
+
+ if (err==ZIP_OK) /* version needed */
+ err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)45,2);
+
+ if (err==ZIP_OK) /* number of this disk */
+ err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,4);
+
+ if (err==ZIP_OK) /* number of the disk with the start of the central directory */
+ err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,4);
+
+ if (err==ZIP_OK) /* total number of entries in the central dir on this disk */
+ err = zip64local_putValue(&zi->z_filefunc, zi->filestream, zi->number_entry, 8);
+
+ if (err==ZIP_OK) /* total number of entries in the central dir */
+ err = zip64local_putValue(&zi->z_filefunc, zi->filestream, zi->number_entry, 8);
+
+ if (err==ZIP_OK) /* size of the central directory */
+ err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(ZPOS64_T)size_centraldir,8);
+
+ if (err==ZIP_OK) /* offset of start of central directory with respect to the starting disk number */
+ {
+ ZPOS64_T pos = centraldir_pos_inzip - zi->add_position_when_writting_offset;
+ err = zip64local_putValue(&zi->z_filefunc,zi->filestream, (ZPOS64_T)pos,8);
+ }
+ return err;
+}
+int Write_EndOfCentralDirectoryRecord(zip64_internal* zi, uLong size_centraldir, ZPOS64_T centraldir_pos_inzip)
+{
+ int err = ZIP_OK;
+
+ /*signature*/
+ err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)ENDHEADERMAGIC,4);
+
+ if (err==ZIP_OK) /* number of this disk */
+ err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,2);
+
+ if (err==ZIP_OK) /* number of the disk with the start of the central directory */
+ err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,2);
+
+ if (err==ZIP_OK) /* total number of entries in the central dir on this disk */
+ {
+ {
+ if(zi->number_entry >= 0xFFFF)
+ err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0xffff,2); // use value in ZIP64 record
+ else
+ err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->number_entry,2);
+ }
+ }
+
+ if (err==ZIP_OK) /* total number of entries in the central dir */
+ {
+ if(zi->number_entry >= 0xFFFF)
+ err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0xffff,2); // use value in ZIP64 record
+ else
+ err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->number_entry,2);
+ }
+
+ if (err==ZIP_OK) /* size of the central directory */
+ err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)size_centraldir,4);
+
+ if (err==ZIP_OK) /* offset of start of central directory with respect to the starting disk number */
+ {
+ ZPOS64_T pos = centraldir_pos_inzip - zi->add_position_when_writting_offset;
+ if(pos >= 0xffffffff)
+ {
+ err = zip64local_putValue(&zi->z_filefunc,zi->filestream, (uLong)0xffffffff,4);
+ }
+ else
+ err = zip64local_putValue(&zi->z_filefunc,zi->filestream, (uLong)(centraldir_pos_inzip - zi->add_position_when_writting_offset),4);
+ }
+
+ return err;
+}
+
+int Write_GlobalComment(zip64_internal* zi, const char* global_comment)
+{
+ int err = ZIP_OK;
+ uInt size_global_comment = 0;
+
+ if(global_comment != NULL)
+ size_global_comment = (uInt)strlen(global_comment);
+
+ err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)size_global_comment,2);
+
+ if (err == ZIP_OK && size_global_comment > 0)
+ {
+ if (ZWRITE64(zi->z_filefunc,zi->filestream, global_comment, size_global_comment) != size_global_comment)
+ err = ZIP_ERRNO;
+ }
+ return err;
+}
+
+extern int ZEXPORT zipClose (zipFile file, const char* global_comment)
+{
+ zip64_internal* zi;
int err = 0;
uLong size_centraldir = 0;
- uLong centraldir_pos_inzip;
- uInt size_global_comment;
+ ZPOS64_T centraldir_pos_inzip;
+ ZPOS64_T pos;
+
if (file == NULL)
return ZIP_PARAMERROR;
- zi = (zip_internal*)file;
+
+ zi = (zip64_internal*)file;
if (zi->in_opened_file_inzip == 1)
{
@@ -1156,61 +1902,42 @@
if (global_comment==NULL)
global_comment = zi->globalcomment;
#endif
- if (global_comment==NULL)
- size_global_comment = 0;
- else
- size_global_comment = (uInt)strlen(global_comment);
- centraldir_pos_inzip = ZTELL(zi->z_filefunc,zi->filestream);
+ centraldir_pos_inzip = ZTELL64(zi->z_filefunc,zi->filestream);
+
if (err==ZIP_OK)
{
- linkedlist_datablock_internal* ldi = zi->central_dir.first_block ;
+ linkedlist_datablock_internal* ldi = zi->central_dir.first_block;
while (ldi!=NULL)
{
if ((err==ZIP_OK) && (ldi->filled_in_this_block>0))
- if (ZWRITE(zi->z_filefunc,zi->filestream,
- ldi->data,ldi->filled_in_this_block)
- !=ldi->filled_in_this_block )
+ {
+ if (ZWRITE64(zi->z_filefunc,zi->filestream, ldi->data, ldi->filled_in_this_block) != ldi->filled_in_this_block)
err = ZIP_ERRNO;
+ }
size_centraldir += ldi->filled_in_this_block;
ldi = ldi->next_datablock;
}
}
- free_datablock(zi->central_dir.first_block);
+ free_linkedlist(&(zi->central_dir));
- if (err==ZIP_OK) /* Magic End */
- err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)ENDHEADERMAGIC,4);
+ pos = centraldir_pos_inzip - zi->add_position_when_writting_offset;
+ if(pos >= 0xffffffff)
+ {
+ ZPOS64_T Zip64EOCDpos = ZTELL64(zi->z_filefunc,zi->filestream);
+ Write_Zip64EndOfCentralDirectoryRecord(zi, size_centraldir, centraldir_pos_inzip);
- if (err==ZIP_OK) /* number of this disk */
- err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,2);
+ Write_Zip64EndOfCentralDirectoryLocator(zi, Zip64EOCDpos);
+ }
- if (err==ZIP_OK) /* number of the disk with the start of the central directory */
- err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,2);
+ if (err==ZIP_OK)
+ err = Write_EndOfCentralDirectoryRecord(zi, size_centraldir, centraldir_pos_inzip);
- if (err==ZIP_OK) /* total number of entries in the central dir on this disk */
- err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->number_entry,2);
+ if(err == ZIP_OK)
+ err = Write_GlobalComment(zi, global_comment);
- if (err==ZIP_OK) /* total number of entries in the central dir */
- err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->number_entry,2);
-
- if (err==ZIP_OK) /* size of the central directory */
- err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)size_centraldir,4);
-
- if (err==ZIP_OK) /* offset of start of central directory with respect to the
- starting disk number */
- err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,
- (uLong)(centraldir_pos_inzip - zi->add_position_when_writting_offset),4);
-
- if (err==ZIP_OK) /* zipfile comment length */
- err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)size_global_comment,2);
-
- if ((err==ZIP_OK) && (size_global_comment>0))
- if (ZWRITE(zi->z_filefunc,zi->filestream,
- global_comment,size_global_comment) != size_global_comment)
- err = ZIP_ERRNO;
-
- if (ZCLOSE(zi->z_filefunc,zi->filestream) != 0)
+ if (ZCLOSE64(zi->z_filefunc,zi->filestream) != 0)
if (err == ZIP_OK)
err = ZIP_ERRNO;
@@ -1221,3 +1948,61 @@
return err;
}
+
+extern int ZEXPORT zipRemoveExtraInfoBlock (char* pData, int* dataLen, short sHeader)
+{
+ char* p = pData;
+ int size = 0;
+ char* pNewHeader;
+ char* pTmp;
+ short header;
+ short dataSize;
+
+ int retVal = ZIP_OK;
+
+ if(pData == NULL || *dataLen < 4)
+ return ZIP_PARAMERROR;
+
+ pNewHeader = (char*)ALLOC(*dataLen);
+ pTmp = pNewHeader;
+
+ while(p < (pData + *dataLen))
+ {
+ header = *(short*)p;
+ dataSize = *(((short*)p)+1);
+
+ if( header == sHeader ) // Header found.
+ {
+ p += dataSize + 4; // skip it. do not copy to temp buffer
+ }
+ else
+ {
+ // Extra Info block should not be removed, So copy it to the temp buffer.
+ memcpy(pTmp, p, dataSize + 4);
+ p += dataSize + 4;
+ size += dataSize + 4;
+ }
+
+ }
+
+ if(size < *dataLen)
+ {
+ // clean old extra info block.
+ memset(pData,0, *dataLen);
+
+ // copy the new extra info block over the old
+ if(size > 0)
+ memcpy(pData, pNewHeader, size);
+
+ // set the new extra info size
+ *dataLen = size;
+
+ retVal = ZIP_OK;
+ }
+ else
+ retVal = ZIP_ERRNO;
+
+ TRYFREE(pNewHeader);
+
+ return retVal;
+}
diff --git a/contrib/minizip/zip.h b/contrib/minizip/zip.h
index 77a2374..8788c02 100644
--- a/contrib/minizip/zip.h
+++ b/contrib/minizip/zip.h
@@ -1,19 +1,15 @@
-/* zip.h -- IO for compress .zip files using zlib
- Version 1.01e, February 12th, 2005
+/* zip.h -- IO on .zip files using zlib
+ Version 1.1, February 14h, 2010
+ part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html )
- Copyright (C) 1998-2005 Gilles Vollant
+ Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html )
- This unzip package allow creates .ZIP file, compatible with PKZip 2.04g
- WinZip, InfoZip tools and compatible.
- Multi volume ZipFile (span) are not supported.
- Encryption compatible with pkzip 2.04g only supported
- Old compressions used by old PKZip 1.x are not supported
+ Modifications for Zip64 support
+ Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com )
- For uncompress .zip file, look at unzip.h
+ For more info read MiniZip_info.txt
-
- I WAIT FEEDBACK at mail info@winimage.com
- Visit also http://www.winimage.com/zLibDll/unzip.html for evolution
+ ---------------------------------------------------------------------------
Condition of use and distribution are the same than zlib :
@@ -33,33 +29,41 @@
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
+ ---------------------------------------------------------------------------
+
+ Changes
+
+ See header of zip.h
*/
-/* for more info about .ZIP format, see
- http://www.info-zip.org/pub/infozip/doc/appnote-981119-iz.zip
- http://www.info-zip.org/pub/infozip/doc/
- PkWare has also a specification at :
- ftp://ftp.pkware.com/probdesc.zip
-*/
-
-#ifndef _zip_H
-#define _zip_H
+#ifndef _zip12_H
+#define _zip12_H
#ifdef __cplusplus
extern "C" {
#endif
+//#define HAVE_BZIP2
+
+#ifndef _ZLIB_H
#if defined(USE_SYSTEM_ZLIB)
#include <zlib.h>
#else
#include "third_party/zlib/zlib.h"
#endif
+#endif
#ifndef _ZLIBIOAPI_H
#include "ioapi.h"
#endif
+#ifdef HAVE_BZIP2
+#include "bzlib.h"
+#endif
+
+#define Z_BZIP2ED 12
+
#if defined(STRICTZIP) || defined(STRICTZIPUNZIP)
/* like the STRICT of WIN32, we define a pointer that cannot be converted
from (void*) without cast */
@@ -114,6 +118,7 @@
#define APPEND_STATUS_ADDINZIP (2)
extern zipFile ZEXPORT zipOpen OF((const char *pathname, int append));
+extern zipFile ZEXPORT zipOpen64 OF((const void *pathname, int append));
/*
Create a zipfile.
pathname contain on Windows XP a filename like "c:\\zlib\\zlib113.zip" or on
@@ -138,6 +143,11 @@
zipcharpc* globalcomment,
zlib_filefunc_def* pzlib_filefunc_def));
+extern zipFile ZEXPORT zipOpen2_64 OF((const void *pathname,
+ int append,
+ zipcharpc* globalcomment,
+ zlib_filefunc64_def* pzlib_filefunc_def));
+
extern int ZEXPORT zipOpenNewFileInZip OF((zipFile file,
const char* filename,
const zip_fileinfo* zipfi,
@@ -148,6 +158,19 @@
const char* comment,
int method,
int level));
+
+extern int ZEXPORT zipOpenNewFileInZip64 OF((zipFile file,
+ const char* filename,
+ const zip_fileinfo* zipfi,
+ const void* extrafield_local,
+ uInt size_extrafield_local,
+ const void* extrafield_global,
+ uInt size_extrafield_global,
+ const char* comment,
+ int method,
+ int level,
+ int zip64));
+
/*
Open a file in the ZIP for writing.
filename : the filename in zip (if NULL, '-' without quote will be used
@@ -159,6 +182,9 @@
if comment != NULL, comment contain the comment string
method contain the compression method (0 for store, Z_DEFLATED for deflate)
level contain the level of compression (can be Z_DEFAULT_COMPRESSION)
+ zip64 is set to 1 if a zip64 extended information block should be added to the local file header.
+ this MUST be '1' if the uncompressed size is >= 0xffffffff.
+
*/
@@ -174,6 +200,19 @@
int level,
int raw));
+
+extern int ZEXPORT zipOpenNewFileInZip2_64 OF((zipFile file,
+ const char* filename,
+ const zip_fileinfo* zipfi,
+ const void* extrafield_local,
+ uInt size_extrafield_local,
+ const void* extrafield_global,
+ uInt size_extrafield_global,
+ const char* comment,
+ int method,
+ int level,
+ int raw,
+ int zip64));
/*
Same than zipOpenNewFileInZip, except if raw=1, we write raw file
*/
@@ -193,13 +232,79 @@
int memLevel,
int strategy,
const char* password,
- uLong crcForCtypting));
+ uLong crcForCrypting));
+
+extern int ZEXPORT zipOpenNewFileInZip3_64 OF((zipFile file,
+ const char* filename,
+ const zip_fileinfo* zipfi,
+ const void* extrafield_local,
+ uInt size_extrafield_local,
+ const void* extrafield_global,
+ uInt size_extrafield_global,
+ const char* comment,
+ int method,
+ int level,
+ int raw,
+ int windowBits,
+ int memLevel,
+ int strategy,
+ const char* password,
+ uLong crcForCrypting,
+ int zip64
+ ));
/*
Same than zipOpenNewFileInZip2, except
windowBits,memLevel,,strategy : see parameter strategy in deflateInit2
password : crypting password (NULL for no crypting)
- crcForCtypting : crc of file to compress (needed for crypting)
+ crcForCrypting : crc of file to compress (needed for crypting)
+ */
+
+extern int ZEXPORT zipOpenNewFileInZip4 OF((zipFile file,
+ const char* filename,
+ const zip_fileinfo* zipfi,
+ const void* extrafield_local,
+ uInt size_extrafield_local,
+ const void* extrafield_global,
+ uInt size_extrafield_global,
+ const char* comment,
+ int method,
+ int level,
+ int raw,
+ int windowBits,
+ int memLevel,
+ int strategy,
+ const char* password,
+ uLong crcForCrypting,
+ uLong versionMadeBy,
+ uLong flagBase
+ ));
+
+
+extern int ZEXPORT zipOpenNewFileInZip4_64 OF((zipFile file,
+ const char* filename,
+ const zip_fileinfo* zipfi,
+ const void* extrafield_local,
+ uInt size_extrafield_local,
+ const void* extrafield_global,
+ uInt size_extrafield_global,
+ const char* comment,
+ int method,
+ int level,
+ int raw,
+ int windowBits,
+ int memLevel,
+ int strategy,
+ const char* password,
+ uLong crcForCrypting,
+ uLong versionMadeBy,
+ uLong flagBase,
+ int zip64
+ ));
+/*
+ Same than zipOpenNewFileInZip4, except
+ versionMadeBy : value for Version made by field
+ flag : value for flag field (compression level info will be added)
*/
@@ -218,8 +323,13 @@
extern int ZEXPORT zipCloseFileInZipRaw OF((zipFile file,
uLong uncompressed_size,
uLong crc32));
+
+extern int ZEXPORT zipCloseFileInZipRaw64 OF((zipFile file,
+ ZPOS64_T uncompressed_size,
+ uLong crc32));
+
/*
- Close the current file in the zipfile, for fiel opened with
+ Close the current file in the zipfile, for file opened with
parameter raw=1 in zipOpenNewFileInZip2
uncompressed_size and crc32 are value for the uncompressed size
*/
@@ -230,8 +340,27 @@
Close the zipfile
*/
+
+extern int ZEXPORT zipRemoveExtraInfoBlock OF((char* pData, int* dataLen, short sHeader));
+/*
+ zipRemoveExtraInfoBlock - Added by Mathias Svensson
+
+ Remove extra information block from a extra information data for the local file header or central directory header
+
+ It is needed to remove ZIP64 extra information blocks when before data is written if using RAW mode.
+
+ 0x0001 is the signature header for the ZIP64 extra information blocks
+
+ usage.
+ Remove ZIP64 Extra information from a central director extra field data
+ zipRemoveExtraInfoBlock(pCenDirExtraFieldData, &nCenDirExtraFieldDataLen, 0x0001);
+
+ Remove ZIP64 Extra information from a Local File Header extra field data
+ zipRemoveExtraInfoBlock(pLocalHeaderExtraFieldData, &nLocalHeaderExtraFieldDataLen, 0x0001);
+*/
+
#ifdef __cplusplus
}
#endif
-#endif /* _zip_H */
+#endif /* _zip64_H */
diff --git a/crc32.c b/crc32.c
index 495863b..91be372 100644
--- a/crc32.c
+++ b/crc32.c
@@ -1,5 +1,5 @@
/* crc32.c -- compute the CRC-32 of a data stream
- * Copyright (C) 1995-2005 Mark Adler
+ * Copyright (C) 1995-2006, 2010 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*
* Thanks to Rodney Brown <rbrown64@csc.com.au> for his contribution of faster
@@ -9,7 +9,7 @@
* factor of two increase in speed on a Power PC G4 (PPC7455) using gcc -O3.
*/
-/* @(#) $Id: crc32.c,v 3.6 2005/08/04 19:14:14 tor%cs.brown.edu Exp $ */
+/* @(#) $Id$ */
/*
Note on the use of DYNAMIC_CRC_TABLE: there is no mutex or semaphore
@@ -53,7 +53,7 @@
/* Definitions for doing the crc four data bytes at a time. */
#ifdef BYFOUR
-# define REV(w) (((w)>>24)+(((w)>>8)&0xff00)+ \
+# define REV(w) ((((w)>>24)&0xff)+(((w)>>8)&0xff00)+ \
(((w)&0xff00)<<8)+(((w)&0xff)<<24))
local unsigned long crc32_little OF((unsigned long,
const unsigned char FAR *, unsigned));
@@ -68,6 +68,8 @@
local unsigned long gf2_matrix_times OF((unsigned long *mat,
unsigned long vec));
local void gf2_matrix_square OF((unsigned long *square, unsigned long *mat));
+local uLong crc32_combine_(uLong crc1, uLong crc2, z_off64_t len2);
+
#ifdef DYNAMIC_CRC_TABLE
@@ -219,7 +221,7 @@
unsigned long ZEXPORT crc32(crc, buf, len)
unsigned long crc;
const unsigned char FAR *buf;
- unsigned len;
+ uInt len;
{
if (buf == Z_NULL) return 0UL;
@@ -367,22 +369,22 @@
}
/* ========================================================================= */
-uLong ZEXPORT crc32_combine(crc1, crc2, len2)
+local uLong crc32_combine_(crc1, crc2, len2)
uLong crc1;
uLong crc2;
- z_off_t len2;
+ z_off64_t len2;
{
int n;
unsigned long row;
unsigned long even[GF2_DIM]; /* even-power-of-two zeros operator */
unsigned long odd[GF2_DIM]; /* odd-power-of-two zeros operator */
- /* degenerate case */
- if (len2 == 0)
+ /* degenerate case (also disallow negative lengths) */
+ if (len2 <= 0)
return crc1;
/* put operator for one zero bit in odd */
- odd[0] = 0xedb88320L; /* CRC-32 polynomial */
+ odd[0] = 0xedb88320UL; /* CRC-32 polynomial */
row = 1;
for (n = 1; n < GF2_DIM; n++) {
odd[n] = row;
@@ -421,3 +423,20 @@
crc1 ^= crc2;
return crc1;
}
+
+/* ========================================================================= */
+uLong ZEXPORT crc32_combine(crc1, crc2, len2)
+ uLong crc1;
+ uLong crc2;
+ z_off_t len2;
+{
+ return crc32_combine_(crc1, crc2, len2);
+}
+
+uLong ZEXPORT crc32_combine64(crc1, crc2, len2)
+ uLong crc1;
+ uLong crc2;
+ z_off64_t len2;
+{
+ return crc32_combine_(crc1, crc2, len2);
+}
diff --git a/deflate.c b/deflate.c
index 46a51fe..5c4022f 100644
--- a/deflate.c
+++ b/deflate.c
@@ -1,5 +1,5 @@
/* deflate.c -- compress data using the deflation algorithm
- * Copyright (C) 1995-2005 Jean-loup Gailly.
+ * Copyright (C) 1995-2010 Jean-loup Gailly and Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@@ -47,12 +47,12 @@
*
*/
-/* @(#) $Id: deflate.c,v 3.6 2005/08/04 19:14:14 tor%cs.brown.edu Exp $ */
+/* @(#) $Id$ */
#include "deflate.h"
const char deflate_copyright[] =
- " deflate 1.2.3 Copyright 1995-2005 Jean-loup Gailly ";
+ " deflate 1.2.5 Copyright 1995-2010 Jean-loup Gailly and Mark Adler ";
/*
If you use the zlib library in a product, an acknowledgment is welcome
in the documentation of your product. If for some reason you cannot
@@ -79,19 +79,18 @@
#ifndef FASTEST
local block_state deflate_slow OF((deflate_state *s, int flush));
#endif
+local block_state deflate_rle OF((deflate_state *s, int flush));
+local block_state deflate_huff OF((deflate_state *s, int flush));
local void lm_init OF((deflate_state *s));
local void putShortMSB OF((deflate_state *s, uInt b));
local void flush_pending OF((z_streamp strm));
local int read_buf OF((z_streamp strm, Bytef *buf, unsigned size));
-#ifndef FASTEST
#ifdef ASMV
void match_init OF((void)); /* asm code initialization */
uInt longest_match OF((deflate_state *s, IPos cur_match));
#else
local uInt longest_match OF((deflate_state *s, IPos cur_match));
#endif
-#endif
-local uInt longest_match_fast OF((deflate_state *s, IPos cur_match));
#ifdef DEBUG
local void check_match OF((deflate_state *s, IPos start, IPos match,
@@ -110,11 +109,6 @@
#endif
/* Matches of length 3 are discarded if their distance exceeds TOO_FAR */
-#define MIN_LOOKAHEAD (MAX_MATCH+MIN_MATCH+1)
-/* Minimum amount of lookahead, except at the end of the input file.
- * See deflate.c for comments about the MIN_MATCH+1.
- */
-
/* Values for max_lazy_match, good_match and max_chain_length, depending on
* the desired pack level (0..9). The values given below have been tuned to
* exclude worst case performance for pathological files. Better values may be
@@ -288,6 +282,8 @@
s->prev = (Posf *) ZALLOC(strm, s->w_size, sizeof(Pos));
s->head = (Posf *) ZALLOC(strm, s->hash_size, sizeof(Pos));
+ s->high_water = 0; /* nothing written to s->window yet */
+
s->lit_bufsize = 1 << (memLevel + 6); /* 16K elements by default */
overlay = (ushf *) ZALLOC(strm, s->lit_bufsize, sizeof(ush)+2);
@@ -332,8 +328,8 @@
strm->adler = adler32(strm->adler, dictionary, dictLength);
if (length < MIN_MATCH) return Z_OK;
- if (length > MAX_DIST(s)) {
- length = MAX_DIST(s);
+ if (length > s->w_size) {
+ length = s->w_size;
dictionary += dictLength - length; /* use the tail of the dictionary */
}
zmemcpy(s->window, dictionary, length);
@@ -435,9 +431,10 @@
}
func = configuration_table[s->level].func;
- if (func != configuration_table[level].func && strm->total_in != 0) {
+ if ((strategy != s->strategy || func != configuration_table[level].func) &&
+ strm->total_in != 0) {
/* Flush the last buffer: */
- err = deflate(strm, Z_PARTIAL_FLUSH);
+ err = deflate(strm, Z_BLOCK);
}
if (s->level != level) {
s->level = level;
@@ -481,33 +478,66 @@
* resulting from using fixed blocks instead of stored blocks, which deflate
* can emit on compressed data for some combinations of the parameters.
*
- * This function could be more sophisticated to provide closer upper bounds
- * for every combination of windowBits and memLevel, as well as wrap.
- * But even the conservative upper bound of about 14% expansion does not
- * seem onerous for output buffer allocation.
+ * This function could be more sophisticated to provide closer upper bounds for
+ * every combination of windowBits and memLevel. But even the conservative
+ * upper bound of about 14% expansion does not seem onerous for output buffer
+ * allocation.
*/
uLong ZEXPORT deflateBound(strm, sourceLen)
z_streamp strm;
uLong sourceLen;
{
deflate_state *s;
- uLong destLen;
+ uLong complen, wraplen;
+ Bytef *str;
- /* conservative upper bound */
- destLen = sourceLen +
- ((sourceLen + 7) >> 3) + ((sourceLen + 63) >> 6) + 11;
+ /* conservative upper bound for compressed data */
+ complen = sourceLen +
+ ((sourceLen + 7) >> 3) + ((sourceLen + 63) >> 6) + 5;
- /* if can't get parameters, return conservative bound */
+ /* if can't get parameters, return conservative bound plus zlib wrapper */
if (strm == Z_NULL || strm->state == Z_NULL)
- return destLen;
+ return complen + 6;
+
+ /* compute wrapper length */
+ s = strm->state;
+ switch (s->wrap) {
+ case 0: /* raw deflate */
+ wraplen = 0;
+ break;
+ case 1: /* zlib wrapper */
+ wraplen = 6 + (s->strstart ? 4 : 0);
+ break;
+ case 2: /* gzip wrapper */
+ wraplen = 18;
+ if (s->gzhead != Z_NULL) { /* user-supplied gzip header */
+ if (s->gzhead->extra != Z_NULL)
+ wraplen += 2 + s->gzhead->extra_len;
+ str = s->gzhead->name;
+ if (str != Z_NULL)
+ do {
+ wraplen++;
+ } while (*str++);
+ str = s->gzhead->comment;
+ if (str != Z_NULL)
+ do {
+ wraplen++;
+ } while (*str++);
+ if (s->gzhead->hcrc)
+ wraplen += 2;
+ }
+ break;
+ default: /* for compiler happiness */
+ wraplen = 6;
+ }
/* if not default parameters, return conservative bound */
- s = strm->state;
if (s->w_bits != 15 || s->hash_bits != 8 + 7)
- return destLen;
+ return complen + wraplen;
/* default settings: return tight bound for that case */
- return compressBound(sourceLen);
+ return sourceLen + (sourceLen >> 12) + (sourceLen >> 14) +
+ (sourceLen >> 25) + 13 - 6 + wraplen;
}
/* =========================================================================
@@ -557,7 +587,7 @@
deflate_state *s;
if (strm == Z_NULL || strm->state == Z_NULL ||
- flush > Z_FINISH || flush < 0) {
+ flush > Z_BLOCK || flush < 0) {
return Z_STREAM_ERROR;
}
s = strm->state;
@@ -581,7 +611,7 @@
put_byte(s, 31);
put_byte(s, 139);
put_byte(s, 8);
- if (s->gzhead == NULL) {
+ if (s->gzhead == Z_NULL) {
put_byte(s, 0);
put_byte(s, 0);
put_byte(s, 0);
@@ -608,7 +638,7 @@
(s->strategy >= Z_HUFFMAN_ONLY || s->level < 2 ?
4 : 0));
put_byte(s, s->gzhead->os & 0xff);
- if (s->gzhead->extra != NULL) {
+ if (s->gzhead->extra != Z_NULL) {
put_byte(s, s->gzhead->extra_len & 0xff);
put_byte(s, (s->gzhead->extra_len >> 8) & 0xff);
}
@@ -650,7 +680,7 @@
}
#ifdef GZIP
if (s->status == EXTRA_STATE) {
- if (s->gzhead->extra != NULL) {
+ if (s->gzhead->extra != Z_NULL) {
uInt beg = s->pending; /* start of bytes to update crc */
while (s->gzindex < (s->gzhead->extra_len & 0xffff)) {
@@ -678,7 +708,7 @@
s->status = NAME_STATE;
}
if (s->status == NAME_STATE) {
- if (s->gzhead->name != NULL) {
+ if (s->gzhead->name != Z_NULL) {
uInt beg = s->pending; /* start of bytes to update crc */
int val;
@@ -709,7 +739,7 @@
s->status = COMMENT_STATE;
}
if (s->status == COMMENT_STATE) {
- if (s->gzhead->comment != NULL) {
+ if (s->gzhead->comment != Z_NULL) {
uInt beg = s->pending; /* start of bytes to update crc */
int val;
@@ -787,7 +817,9 @@
(flush != Z_NO_FLUSH && s->status != FINISH_STATE)) {
block_state bstate;
- bstate = (*(configuration_table[s->level].func))(s, flush);
+ bstate = s->strategy == Z_HUFFMAN_ONLY ? deflate_huff(s, flush) :
+ (s->strategy == Z_RLE ? deflate_rle(s, flush) :
+ (*(configuration_table[s->level].func))(s, flush));
if (bstate == finish_started || bstate == finish_done) {
s->status = FINISH_STATE;
@@ -808,13 +840,17 @@
if (bstate == block_done) {
if (flush == Z_PARTIAL_FLUSH) {
_tr_align(s);
- } else { /* FULL_FLUSH or SYNC_FLUSH */
+ } else if (flush != Z_BLOCK) { /* FULL_FLUSH or SYNC_FLUSH */
_tr_stored_block(s, (char*)0, 0L, 0);
/* For a full flush, this empty block will be recognized
* as a special marker by inflate_sync().
*/
if (flush == Z_FULL_FLUSH) {
CLEAR_HASH(s); /* forget history */
+ if (s->lookahead == 0) {
+ s->strstart = 0;
+ s->block_start = 0L;
+ }
}
}
flush_pending(strm);
@@ -1167,12 +1203,13 @@
return s->lookahead;
}
#endif /* ASMV */
-#endif /* FASTEST */
+
+#else /* FASTEST */
/* ---------------------------------------------------------------------------
- * Optimized version for level == 1 or strategy == Z_RLE only
+ * Optimized version for FASTEST only
*/
-local uInt longest_match_fast(s, cur_match)
+local uInt longest_match(s, cur_match)
deflate_state *s;
IPos cur_match; /* current match */
{
@@ -1225,6 +1262,8 @@
return (uInt)len <= s->lookahead ? (uInt)len : s->lookahead;
}
+#endif /* FASTEST */
+
#ifdef DEBUG
/* ===========================================================================
* Check that the match at match_start is indeed a match.
@@ -1303,7 +1342,6 @@
later. (Using level 0 permanently is not an optimal usage of
zlib, so we don't care about this pathological case.)
*/
- /* %%% avoid this when Z_RLE */
n = s->hash_size;
p = &s->head[n];
do {
@@ -1355,27 +1393,61 @@
*/
} while (s->lookahead < MIN_LOOKAHEAD && s->strm->avail_in != 0);
+
+ /* If the WIN_INIT bytes after the end of the current data have never been
+ * written, then zero those bytes in order to avoid memory check reports of
+ * the use of uninitialized (or uninitialised as Julian writes) bytes by
+ * the longest match routines. Update the high water mark for the next
+ * time through here. WIN_INIT is set to MAX_MATCH since the longest match
+ * routines allow scanning to strstart + MAX_MATCH, ignoring lookahead.
+ */
+ if (s->high_water < s->window_size) {
+ ulg curr = s->strstart + (ulg)(s->lookahead);
+ ulg init;
+
+ if (s->high_water < curr) {
+ /* Previous high water mark below current data -- zero WIN_INIT
+ * bytes or up to end of window, whichever is less.
+ */
+ init = s->window_size - curr;
+ if (init > WIN_INIT)
+ init = WIN_INIT;
+ zmemzero(s->window + curr, (unsigned)init);
+ s->high_water = curr + init;
+ }
+ else if (s->high_water < (ulg)curr + WIN_INIT) {
+ /* High water mark at or above current data, but below current data
+ * plus WIN_INIT -- zero out to current data plus WIN_INIT, or up
+ * to end of window, whichever is less.
+ */
+ init = (ulg)curr + WIN_INIT - s->high_water;
+ if (init > s->window_size - s->high_water)
+ init = s->window_size - s->high_water;
+ zmemzero(s->window + s->high_water, (unsigned)init);
+ s->high_water += init;
+ }
+ }
}
/* ===========================================================================
* Flush the current block, with given end-of-file flag.
* IN assertion: strstart is set to the end of the current match.
*/
-#define FLUSH_BLOCK_ONLY(s, eof) { \
+#define FLUSH_BLOCK_ONLY(s, last) { \
_tr_flush_block(s, (s->block_start >= 0L ? \
(charf *)&s->window[(unsigned)s->block_start] : \
(charf *)Z_NULL), \
(ulg)((long)s->strstart - s->block_start), \
- (eof)); \
+ (last)); \
s->block_start = s->strstart; \
flush_pending(s->strm); \
Tracev((stderr,"[FLUSH]")); \
}
/* Same but force premature exit if necessary. */
-#define FLUSH_BLOCK(s, eof) { \
- FLUSH_BLOCK_ONLY(s, eof); \
- if (s->strm->avail_out == 0) return (eof) ? finish_started : need_more; \
+#define FLUSH_BLOCK(s, last) { \
+ FLUSH_BLOCK_ONLY(s, last); \
+ if (s->strm->avail_out == 0) return (last) ? finish_started : need_more; \
}
/* ===========================================================================
@@ -1449,7 +1521,7 @@
deflate_state *s;
int flush;
{
- IPos hash_head = NIL; /* head of the hash chain */
+ IPos hash_head; /* head of the hash chain */
int bflush; /* set if current block must be flushed */
for (;;) {
@@ -1469,6 +1541,7 @@
/* Insert the string window[strstart .. strstart+2] in the
* dictionary, and set hash_head to the head of the hash chain:
*/
+ hash_head = NIL;
if (s->lookahead >= MIN_MATCH) {
INSERT_STRING(s, s->strstart, hash_head);
}
@@ -1481,19 +1554,8 @@
* of window index 0 (in particular we have to avoid a match
* of the string with itself at the start of the input file).
*/
-#ifdef FASTEST
- if ((s->strategy != Z_HUFFMAN_ONLY && s->strategy != Z_RLE) ||
- (s->strategy == Z_RLE && s->strstart - hash_head == 1)) {
- s->match_length = longest_match_fast (s, hash_head);
- }
-#else
- if (s->strategy != Z_HUFFMAN_ONLY && s->strategy != Z_RLE) {
- s->match_length = longest_match (s, hash_head);
- } else if (s->strategy == Z_RLE && s->strstart - hash_head == 1) {
- s->match_length = longest_match_fast (s, hash_head);
- }
-#endif
- /* longest_match() or longest_match_fast() sets match_start */
+ s->match_length = longest_match (s, hash_head);
+ /* longest_match() sets match_start */
}
if (s->match_length >= MIN_MATCH) {
check_match(s, s->strstart, s->match_start, s->match_length);
@@ -1555,7 +1617,7 @@
deflate_state *s;
int flush;
{
- IPos hash_head = NIL; /* head of hash chain */
+ IPos hash_head; /* head of hash chain */
int bflush; /* set if current block must be flushed */
/* Process the input block. */
@@ -1576,6 +1638,7 @@
/* Insert the string window[strstart .. strstart+2] in the
* dictionary, and set hash_head to the head of the hash chain:
*/
+ hash_head = NIL;
if (s->lookahead >= MIN_MATCH) {
INSERT_STRING(s, s->strstart, hash_head);
}
@@ -1591,12 +1654,8 @@
* of window index 0 (in particular we have to avoid a match
* of the string with itself at the start of the input file).
*/
- if (s->strategy != Z_HUFFMAN_ONLY && s->strategy != Z_RLE) {
- s->match_length = longest_match (s, hash_head);
- } else if (s->strategy == Z_RLE && s->strstart - hash_head == 1) {
- s->match_length = longest_match_fast (s, hash_head);
- }
- /* longest_match() or longest_match_fast() sets match_start */
+ s->match_length = longest_match (s, hash_head);
+ /* longest_match() sets match_start */
if (s->match_length <= 5 && (s->strategy == Z_FILTERED
#if TOO_FAR <= 32767
@@ -1674,7 +1733,6 @@
}
#endif /* FASTEST */
-#if 0
/* ===========================================================================
* For Z_RLE, simply look for runs of bytes, generate matches only of distance
* one. Do not maintain a hash table. (It will be regenerated if this run of
@@ -1684,11 +1742,9 @@
deflate_state *s;
int flush;
{
- int bflush; /* set if current block must be flushed */
- uInt run; /* length of run */
- uInt max; /* maximum length of run */
- uInt prev; /* byte at distance one to match */
- Bytef *scan; /* scan for end of run */
+ int bflush; /* set if current block must be flushed */
+ uInt prev; /* byte at distance one to match */
+ Bytef *scan, *strend; /* scan goes up to strend for length of run */
for (;;) {
/* Make sure that we always have enough lookahead, except
@@ -1704,23 +1760,33 @@
}
/* See how many times the previous byte repeats */
- run = 0;
- if (s->strstart > 0) { /* if there is a previous byte, that is */
- max = s->lookahead < MAX_MATCH ? s->lookahead : MAX_MATCH;
+ s->match_length = 0;
+ if (s->lookahead >= MIN_MATCH && s->strstart > 0) {
scan = s->window + s->strstart - 1;
- prev = *scan++;
- do {
- if (*scan++ != prev)
- break;
- } while (++run < max);
+ prev = *scan;
+ if (prev == *++scan && prev == *++scan && prev == *++scan) {
+ strend = s->window + s->strstart + MAX_MATCH;
+ do {
+ } while (prev == *++scan && prev == *++scan &&
+ prev == *++scan && prev == *++scan &&
+ prev == *++scan && prev == *++scan &&
+ prev == *++scan && prev == *++scan &&
+ scan < strend);
+ s->match_length = MAX_MATCH - (int)(strend - scan);
+ if (s->match_length > s->lookahead)
+ s->match_length = s->lookahead;
+ }
}
/* Emit match if have run of MIN_MATCH or longer, else emit literal */
- if (run >= MIN_MATCH) {
- check_match(s, s->strstart, s->strstart - 1, run);
- _tr_tally_dist(s, 1, run - MIN_MATCH, bflush);
- s->lookahead -= run;
- s->strstart += run;
+ if (s->match_length >= MIN_MATCH) {
+ check_match(s, s->strstart, s->strstart - 1, s->match_length);
+
+ _tr_tally_dist(s, 1, s->match_length - MIN_MATCH, bflush);
+
+ s->lookahead -= s->match_length;
+ s->strstart += s->match_length;
+ s->match_length = 0;
} else {
/* No match, output a literal byte */
Tracevv((stderr,"%c", s->window[s->strstart]));
@@ -1733,4 +1799,36 @@
FLUSH_BLOCK(s, flush == Z_FINISH);
return flush == Z_FINISH ? finish_done : block_done;
}
-#endif
+
+/* ===========================================================================
+ * For Z_HUFFMAN_ONLY, do not look for matches. Do not maintain a hash table.
+ * (It will be regenerated if this run of deflate switches away from Huffman.)
+ */
+local block_state deflate_huff(s, flush)
+ deflate_state *s;
+ int flush;
+{
+ int bflush; /* set if current block must be flushed */
+
+ for (;;) {
+ /* Make sure that we have a literal to write. */
+ if (s->lookahead == 0) {
+ fill_window(s);
+ if (s->lookahead == 0) {
+ if (flush == Z_NO_FLUSH)
+ return need_more;
+ break; /* flush the current block */
+ }
+ }
+
+ /* Output a literal byte */
+ s->match_length = 0;
+ Tracevv((stderr,"%c", s->window[s->strstart]));
+ _tr_tally_lit (s, s->window[s->strstart], bflush);
+ s->lookahead--;
+ s->strstart++;
+ if (bflush) FLUSH_BLOCK(s, 0);
+ }
+ FLUSH_BLOCK(s, flush == Z_FINISH);
+ return flush == Z_FINISH ? finish_done : block_done;
+}
diff --git a/deflate.h b/deflate.h
index 942fe26..cbf0d1e 100644
--- a/deflate.h
+++ b/deflate.h
@@ -1,5 +1,5 @@
/* deflate.h -- internal compression state
- * Copyright (C) 1995-2004 Jean-loup Gailly
+ * Copyright (C) 1995-2010 Jean-loup Gailly
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@@ -8,7 +8,7 @@
subject to change. Applications should only use zlib.h.
*/
-/* @(#) $Id: deflate.h,v 3.6 2005/08/04 19:14:14 tor%cs.brown.edu Exp $ */
+/* @(#) $Id$ */
#ifndef DEFLATE_H
#define DEFLATE_H
@@ -260,6 +260,13 @@
* are always zero.
*/
+ ulg high_water;
+ /* High water mark offset in window for initialized bytes -- bytes above
+ * this are set to zero in order to avoid memory check warnings when
+ * longest match routines access bytes past the input. This is then
+ * updated to the new high water mark.
+ */
+
} FAR deflate_state;
/* Output a byte on the stream.
@@ -278,14 +285,18 @@
* distances are limited to MAX_DIST instead of WSIZE.
*/
+#define WIN_INIT MAX_MATCH
+/* Number of bytes after end of data in window to initialize in order to avoid
+ memory checker errors from longest match routines */
+
/* in trees.c */
-void _tr_init OF((deflate_state *s));
-int _tr_tally OF((deflate_state *s, unsigned dist, unsigned lc));
-void _tr_flush_block OF((deflate_state *s, charf *buf, ulg stored_len,
- int eof));
-void _tr_align OF((deflate_state *s));
-void _tr_stored_block OF((deflate_state *s, charf *buf, ulg stored_len,
- int eof));
+void ZLIB_INTERNAL _tr_init OF((deflate_state *s));
+int ZLIB_INTERNAL _tr_tally OF((deflate_state *s, unsigned dist, unsigned lc));
+void ZLIB_INTERNAL _tr_flush_block OF((deflate_state *s, charf *buf,
+ ulg stored_len, int last));
+void ZLIB_INTERNAL _tr_align OF((deflate_state *s));
+void ZLIB_INTERNAL _tr_stored_block OF((deflate_state *s, charf *buf,
+ ulg stored_len, int last));
#define d_code(dist) \
((dist) < 256 ? _dist_code[dist] : _dist_code[256+((dist)>>7)])
@@ -298,11 +309,11 @@
/* Inline versions of _tr_tally for speed: */
#if defined(GEN_TREES_H) || !defined(STDC)
- extern uch _length_code[];
- extern uch _dist_code[];
+ extern uch ZLIB_INTERNAL _length_code[];
+ extern uch ZLIB_INTERNAL _dist_code[];
#else
- extern const uch _length_code[];
- extern const uch _dist_code[];
+ extern const uch ZLIB_INTERNAL _length_code[];
+ extern const uch ZLIB_INTERNAL _dist_code[];
#endif
# define _tr_tally_lit(s, c, flush) \
diff --git a/infback.c b/infback.c
index 455dbc9..af3a8c9 100644
--- a/infback.c
+++ b/infback.c
@@ -1,5 +1,5 @@
/* infback.c -- inflate using a call-back interface
- * Copyright (C) 1995-2005 Mark Adler
+ * Copyright (C) 1995-2009 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@@ -55,7 +55,7 @@
state->wbits = windowBits;
state->wsize = 1U << windowBits;
state->window = window;
- state->write = 0;
+ state->wnext = 0;
state->whave = 0;
return Z_OK;
}
@@ -253,7 +253,7 @@
unsigned bits; /* bits in bit buffer */
unsigned copy; /* number of stored or match bytes to copy */
unsigned char FAR *from; /* where to copy match bytes from */
- code this; /* current decoding table entry */
+ code here; /* current decoding table entry */
code last; /* parent table entry */
unsigned len; /* length to copy for repeats, bits to drop */
int ret; /* return code */
@@ -389,19 +389,19 @@
state->have = 0;
while (state->have < state->nlen + state->ndist) {
for (;;) {
- this = state->lencode[BITS(state->lenbits)];
- if ((unsigned)(this.bits) <= bits) break;
+ here = state->lencode[BITS(state->lenbits)];
+ if ((unsigned)(here.bits) <= bits) break;
PULLBYTE();
}
- if (this.val < 16) {
- NEEDBITS(this.bits);
- DROPBITS(this.bits);
- state->lens[state->have++] = this.val;
+ if (here.val < 16) {
+ NEEDBITS(here.bits);
+ DROPBITS(here.bits);
+ state->lens[state->have++] = here.val;
}
else {
- if (this.val == 16) {
- NEEDBITS(this.bits + 2);
- DROPBITS(this.bits);
+ if (here.val == 16) {
+ NEEDBITS(here.bits + 2);
+ DROPBITS(here.bits);
if (state->have == 0) {
strm->msg = (char *)"invalid bit length repeat";
state->mode = BAD;
@@ -411,16 +411,16 @@
copy = 3 + BITS(2);
DROPBITS(2);
}
- else if (this.val == 17) {
- NEEDBITS(this.bits + 3);
- DROPBITS(this.bits);
+ else if (here.val == 17) {
+ NEEDBITS(here.bits + 3);
+ DROPBITS(here.bits);
len = 0;
copy = 3 + BITS(3);
DROPBITS(3);
}
else {
- NEEDBITS(this.bits + 7);
- DROPBITS(this.bits);
+ NEEDBITS(here.bits + 7);
+ DROPBITS(here.bits);
len = 0;
copy = 11 + BITS(7);
DROPBITS(7);
@@ -438,7 +438,16 @@
/* handle error breaks in while */
if (state->mode == BAD) break;
- /* build code tables */
+ /* check for end-of-block code (better have one) */
+ if (state->lens[256] == 0) {
+ strm->msg = (char *)"invalid code -- missing end-of-block";
+ state->mode = BAD;
+ break;
+ }
+
+ /* build code tables -- note: do not change the lenbits or distbits
+ values here (9 and 6) without reading the comments in inftrees.h
+ concerning the ENOUGH constants, which depend on those values */
state->next = state->codes;
state->lencode = (code const FAR *)(state->next);
state->lenbits = 9;
@@ -474,28 +483,28 @@
/* get a literal, length, or end-of-block code */
for (;;) {
- this = state->lencode[BITS(state->lenbits)];
- if ((unsigned)(this.bits) <= bits) break;
+ here = state->lencode[BITS(state->lenbits)];
+ if ((unsigned)(here.bits) <= bits) break;
PULLBYTE();
}
- if (this.op && (this.op & 0xf0) == 0) {
- last = this;
+ if (here.op && (here.op & 0xf0) == 0) {
+ last = here;
for (;;) {
- this = state->lencode[last.val +
+ here = state->lencode[last.val +
(BITS(last.bits + last.op) >> last.bits)];
- if ((unsigned)(last.bits + this.bits) <= bits) break;
+ if ((unsigned)(last.bits + here.bits) <= bits) break;
PULLBYTE();
}
DROPBITS(last.bits);
}
- DROPBITS(this.bits);
- state->length = (unsigned)this.val;
+ DROPBITS(here.bits);
+ state->length = (unsigned)here.val;
/* process literal */
- if (this.op == 0) {
- Tracevv((stderr, this.val >= 0x20 && this.val < 0x7f ?
+ if (here.op == 0) {
+ Tracevv((stderr, here.val >= 0x20 && here.val < 0x7f ?
"inflate: literal '%c'\n" :
- "inflate: literal 0x%02x\n", this.val));
+ "inflate: literal 0x%02x\n", here.val));
ROOM();
*put++ = (unsigned char)(state->length);
left--;
@@ -504,21 +513,21 @@
}
/* process end of block */
- if (this.op & 32) {
+ if (here.op & 32) {
Tracevv((stderr, "inflate: end of block\n"));
state->mode = TYPE;
break;
}
/* invalid code */
- if (this.op & 64) {
+ if (here.op & 64) {
strm->msg = (char *)"invalid literal/length code";
state->mode = BAD;
break;
}
/* length code -- get extra bits, if any */
- state->extra = (unsigned)(this.op) & 15;
+ state->extra = (unsigned)(here.op) & 15;
if (state->extra != 0) {
NEEDBITS(state->extra);
state->length += BITS(state->extra);
@@ -528,30 +537,30 @@
/* get distance code */
for (;;) {
- this = state->distcode[BITS(state->distbits)];
- if ((unsigned)(this.bits) <= bits) break;
+ here = state->distcode[BITS(state->distbits)];
+ if ((unsigned)(here.bits) <= bits) break;
PULLBYTE();
}
- if ((this.op & 0xf0) == 0) {
- last = this;
+ if ((here.op & 0xf0) == 0) {
+ last = here;
for (;;) {
- this = state->distcode[last.val +
+ here = state->distcode[last.val +
(BITS(last.bits + last.op) >> last.bits)];
- if ((unsigned)(last.bits + this.bits) <= bits) break;
+ if ((unsigned)(last.bits + here.bits) <= bits) break;
PULLBYTE();
}
DROPBITS(last.bits);
}
- DROPBITS(this.bits);
- if (this.op & 64) {
+ DROPBITS(here.bits);
+ if (here.op & 64) {
strm->msg = (char *)"invalid distance code";
state->mode = BAD;
break;
}
- state->offset = (unsigned)this.val;
+ state->offset = (unsigned)here.val;
/* get distance extra bits, if any */
- state->extra = (unsigned)(this.op) & 15;
+ state->extra = (unsigned)(here.op) & 15;
if (state->extra != 0) {
NEEDBITS(state->extra);
state->offset += BITS(state->extra);
diff --git a/inffast.c b/inffast.c
index bbee92e..2f1d60b 100644
--- a/inffast.c
+++ b/inffast.c
@@ -1,5 +1,5 @@
/* inffast.c -- fast decoding
- * Copyright (C) 1995-2004 Mark Adler
+ * Copyright (C) 1995-2008, 2010 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@@ -64,7 +64,7 @@
requires strm->avail_out >= 258 for each loop to avoid checking for
output space.
*/
-void inflate_fast(strm, start)
+void ZLIB_INTERNAL inflate_fast(strm, start)
z_streamp strm;
unsigned start; /* inflate()'s starting value for strm->avail_out */
{
@@ -79,7 +79,7 @@
#endif
unsigned wsize; /* window size or zero if not using window */
unsigned whave; /* valid bytes in the window */
- unsigned write; /* window write index */
+ unsigned wnext; /* window write index */
unsigned char FAR *window; /* allocated sliding window, if wsize != 0 */
unsigned long hold; /* local strm->hold */
unsigned bits; /* local strm->bits */
@@ -87,7 +87,7 @@
code const FAR *dcode; /* local strm->distcode */
unsigned lmask; /* mask for first level of length codes */
unsigned dmask; /* mask for first level of distance codes */
- code this; /* retrieved table entry */
+ code here; /* retrieved table entry */
unsigned op; /* code bits, operation, extra bits, or */
/* window position, window bytes to copy */
unsigned len; /* match length, unused bytes */
@@ -106,7 +106,7 @@
#endif
wsize = state->wsize;
whave = state->whave;
- write = state->write;
+ wnext = state->wnext;
window = state->window;
hold = state->hold;
bits = state->bits;
@@ -124,20 +124,20 @@
hold += (unsigned long)(PUP(in)) << bits;
bits += 8;
}
- this = lcode[hold & lmask];
+ here = lcode[hold & lmask];
dolen:
- op = (unsigned)(this.bits);
+ op = (unsigned)(here.bits);
hold >>= op;
bits -= op;
- op = (unsigned)(this.op);
+ op = (unsigned)(here.op);
if (op == 0) { /* literal */
- Tracevv((stderr, this.val >= 0x20 && this.val < 0x7f ?
+ Tracevv((stderr, here.val >= 0x20 && here.val < 0x7f ?
"inflate: literal '%c'\n" :
- "inflate: literal 0x%02x\n", this.val));
- PUP(out) = (unsigned char)(this.val);
+ "inflate: literal 0x%02x\n", here.val));
+ PUP(out) = (unsigned char)(here.val);
}
else if (op & 16) { /* length base */
- len = (unsigned)(this.val);
+ len = (unsigned)(here.val);
op &= 15; /* number of extra bits */
if (op) {
if (bits < op) {
@@ -155,14 +155,14 @@
hold += (unsigned long)(PUP(in)) << bits;
bits += 8;
}
- this = dcode[hold & dmask];
+ here = dcode[hold & dmask];
dodist:
- op = (unsigned)(this.bits);
+ op = (unsigned)(here.bits);
hold >>= op;
bits -= op;
- op = (unsigned)(this.op);
+ op = (unsigned)(here.op);
if (op & 16) { /* distance base */
- dist = (unsigned)(this.val);
+ dist = (unsigned)(here.val);
op &= 15; /* number of extra bits */
if (bits < op) {
hold += (unsigned long)(PUP(in)) << bits;
@@ -187,12 +187,34 @@
if (dist > op) { /* see if copy from window */
op = dist - op; /* distance back in window */
if (op > whave) {
- strm->msg = (char *)"invalid distance too far back";
- state->mode = BAD;
- break;
+ if (state->sane) {
+ strm->msg =
+ (char *)"invalid distance too far back";
+ state->mode = BAD;
+ break;
+ }
+#ifdef INFLATE_ALLOW_INVALID_DISTANCE_TOOFAR_ARRR
+ if (len <= op - whave) {
+ do {
+ PUP(out) = 0;
+ } while (--len);
+ continue;
+ }
+ len -= op - whave;
+ do {
+ PUP(out) = 0;
+ } while (--op > whave);
+ if (op == 0) {
+ from = out - dist;
+ do {
+ PUP(out) = PUP(from);
+ } while (--len);
+ continue;
+ }
+#endif
}
from = window - OFF;
- if (write == 0) { /* very common case */
+ if (wnext == 0) { /* very common case */
from += wsize - op;
if (op < len) { /* some from window */
len -= op;
@@ -202,17 +224,17 @@
from = out - dist; /* rest from output */
}
}
- else if (write < op) { /* wrap around window */
- from += wsize + write - op;
- op -= write;
+ else if (wnext < op) { /* wrap around window */
+ from += wsize + wnext - op;
+ op -= wnext;
if (op < len) { /* some from end of window */
len -= op;
do {
PUP(out) = PUP(from);
} while (--op);
from = window - OFF;
- if (write < len) { /* some from start of window */
- op = write;
+ if (wnext < len) { /* some from start of window */
+ op = wnext;
len -= op;
do {
PUP(out) = PUP(from);
@@ -222,7 +244,7 @@
}
}
else { /* contiguous in window */
- from += write - op;
+ from += wnext - op;
if (op < len) { /* some from window */
len -= op;
do {
@@ -259,7 +281,7 @@
}
}
else if ((op & 64) == 0) { /* 2nd level distance code */
- this = dcode[this.val + (hold & ((1U << op) - 1))];
+ here = dcode[here.val + (hold & ((1U << op) - 1))];
goto dodist;
}
else {
@@ -269,7 +291,7 @@
}
}
else if ((op & 64) == 0) { /* 2nd level length code */
- this = lcode[this.val + (hold & ((1U << op) - 1))];
+ here = lcode[here.val + (hold & ((1U << op) - 1))];
goto dolen;
}
else if (op & 32) { /* end-of-block */
@@ -305,7 +327,7 @@
inflate_fast() speedups that turned out slower (on a PowerPC G3 750CXe):
- Using bit fields for code structure
- Different op definition to avoid & for extra bits (do & for table bits)
- - Three separate decoding do-loops for direct, window, and write == 0
+ - Three separate decoding do-loops for direct, window, and wnext == 0
- Special case for distance > 1 copies to do overlapped load and store copy
- Explicit branch predictions (based on measured branch probabilities)
- Deferring match copy and interspersed it with decoding subsequent codes
diff --git a/inffast.h b/inffast.h
index 1e88d2d..e5c1aa4 100644
--- a/inffast.h
+++ b/inffast.h
@@ -1,5 +1,5 @@
/* inffast.h -- header to use inffast.c
- * Copyright (C) 1995-2003 Mark Adler
+ * Copyright (C) 1995-2003, 2010 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@@ -8,4 +8,4 @@
subject to change. Applications should only use zlib.h.
*/
-void inflate_fast OF((z_streamp strm, unsigned start));
+void ZLIB_INTERNAL inflate_fast OF((z_streamp strm, unsigned start));
diff --git a/inflate.c b/inflate.c
index 792fdee..a8431ab 100644
--- a/inflate.c
+++ b/inflate.c
@@ -1,5 +1,5 @@
/* inflate.c -- zlib decompression
- * Copyright (C) 1995-2005 Mark Adler
+ * Copyright (C) 1995-2010 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@@ -45,7 +45,7 @@
* - Rearrange window copies in inflate_fast() for speed and simplification
* - Unroll last copy for window match in inflate_fast()
* - Use local copies of window variables in inflate_fast() for speed
- * - Pull out common write == 0 case for speed in inflate_fast()
+ * - Pull out common wnext == 0 case for speed in inflate_fast()
* - Make op and len in inflate_fast() unsigned for consistency
* - Add FAR to lcode and dcode declarations in inflate_fast()
* - Simplified bad distance check in inflate_fast()
@@ -117,28 +117,52 @@
state->head = Z_NULL;
state->wsize = 0;
state->whave = 0;
- state->write = 0;
+ state->wnext = 0;
state->hold = 0;
state->bits = 0;
state->lencode = state->distcode = state->next = state->codes;
+ state->sane = 1;
+ state->back = -1;
Tracev((stderr, "inflate: reset\n"));
return Z_OK;
}
-int ZEXPORT inflatePrime(strm, bits, value)
+int ZEXPORT inflateReset2(strm, windowBits)
z_streamp strm;
-int bits;
-int value;
+int windowBits;
{
+ int wrap;
struct inflate_state FAR *state;
+ /* get the state */
if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR;
state = (struct inflate_state FAR *)strm->state;
- if (bits > 16 || state->bits + bits > 32) return Z_STREAM_ERROR;
- value &= (1L << bits) - 1;
- state->hold += value << state->bits;
- state->bits += bits;
- return Z_OK;
+
+ /* extract wrap request from windowBits parameter */
+ if (windowBits < 0) {
+ wrap = 0;
+ windowBits = -windowBits;
+ }
+ else {
+ wrap = (windowBits >> 4) + 1;
+#ifdef GUNZIP
+ if (windowBits < 48)
+ windowBits &= 15;
+#endif
+ }
+
+ /* set number of window bits, free window if different */
+ if (windowBits && (windowBits < 8 || windowBits > 15))
+ return Z_STREAM_ERROR;
+ if (state->window != Z_NULL && state->wbits != (unsigned)windowBits) {
+ ZFREE(strm, state->window);
+ state->window = Z_NULL;
+ }
+
+ /* update state and reset the rest of it */
+ state->wrap = wrap;
+ state->wbits = (unsigned)windowBits;
+ return inflateReset(strm);
}
int ZEXPORT inflateInit2_(strm, windowBits, version, stream_size)
@@ -147,6 +171,7 @@
const char *version;
int stream_size;
{
+ int ret;
struct inflate_state FAR *state;
if (version == Z_NULL || version[0] != ZLIB_VERSION[0] ||
@@ -164,24 +189,13 @@
if (state == Z_NULL) return Z_MEM_ERROR;
Tracev((stderr, "inflate: allocated\n"));
strm->state = (struct internal_state FAR *)state;
- if (windowBits < 0) {
- state->wrap = 0;
- windowBits = -windowBits;
- }
- else {
- state->wrap = (windowBits >> 4) + 1;
-#ifdef GUNZIP
- if (windowBits < 48) windowBits &= 15;
-#endif
- }
- if (windowBits < 8 || windowBits > 15) {
+ state->window = Z_NULL;
+ ret = inflateReset2(strm, windowBits);
+ if (ret != Z_OK) {
ZFREE(strm, state);
strm->state = Z_NULL;
- return Z_STREAM_ERROR;
}
- state->wbits = (unsigned)windowBits;
- state->window = Z_NULL;
- return inflateReset(strm);
+ return ret;
}
int ZEXPORT inflateInit_(strm, version, stream_size)
@@ -192,6 +206,27 @@
return inflateInit2_(strm, DEF_WBITS, version, stream_size);
}
+int ZEXPORT inflatePrime(strm, bits, value)
+z_streamp strm;
+int bits;
+int value;
+{
+ struct inflate_state FAR *state;
+
+ if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR;
+ state = (struct inflate_state FAR *)strm->state;
+ if (bits < 0) {
+ state->hold = 0;
+ state->bits = 0;
+ return Z_OK;
+ }
+ if (bits > 16 || state->bits + bits > 32) return Z_STREAM_ERROR;
+ value &= (1L << bits) - 1;
+ state->hold += value << state->bits;
+ state->bits += bits;
+ return Z_OK;
+}
+
/*
Return state with length and distance decoding tables and index sizes set to
fixed code decoding. Normally this returns fixed tables from inffixed.h.
@@ -340,7 +375,7 @@
/* if window not in use yet, initialize */
if (state->wsize == 0) {
state->wsize = 1U << state->wbits;
- state->write = 0;
+ state->wnext = 0;
state->whave = 0;
}
@@ -348,22 +383,22 @@
copy = out - strm->avail_out;
if (copy >= state->wsize) {
zmemcpy(state->window, strm->next_out - state->wsize, state->wsize);
- state->write = 0;
+ state->wnext = 0;
state->whave = state->wsize;
}
else {
- dist = state->wsize - state->write;
+ dist = state->wsize - state->wnext;
if (dist > copy) dist = copy;
- zmemcpy(state->window + state->write, strm->next_out - copy, dist);
+ zmemcpy(state->window + state->wnext, strm->next_out - copy, dist);
copy -= dist;
if (copy) {
zmemcpy(state->window, strm->next_out - copy, copy);
- state->write = copy;
+ state->wnext = copy;
state->whave = state->wsize;
}
else {
- state->write += dist;
- if (state->write == state->wsize) state->write = 0;
+ state->wnext += dist;
+ if (state->wnext == state->wsize) state->wnext = 0;
if (state->whave < state->wsize) state->whave += dist;
}
}
@@ -564,7 +599,7 @@
unsigned in, out; /* save starting available input and output */
unsigned copy; /* number of stored or match bytes to copy */
unsigned char FAR *from; /* where to copy match bytes from */
- code this; /* current decoding table entry */
+ code here; /* current decoding table entry */
code last; /* parent table entry */
unsigned len; /* length to copy for repeats, bits to drop */
int ret; /* return code */
@@ -619,7 +654,9 @@
}
DROPBITS(4);
len = BITS(4) + 8;
- if (len > state->wbits) {
+ if (state->wbits == 0)
+ state->wbits = len;
+ else if (len > state->wbits) {
strm->msg = (char *)"invalid window size";
state->mode = BAD;
break;
@@ -771,7 +808,7 @@
strm->adler = state->check = adler32(0L, Z_NULL, 0);
state->mode = TYPE;
case TYPE:
- if (flush == Z_BLOCK) goto inf_leave;
+ if (flush == Z_BLOCK || flush == Z_TREES) goto inf_leave;
case TYPEDO:
if (state->last) {
BYTEBITS();
@@ -791,7 +828,11 @@
fixedtables(state);
Tracev((stderr, "inflate: fixed codes block%s\n",
state->last ? " (last)" : ""));
- state->mode = LEN; /* decode codes */
+ state->mode = LEN_; /* decode codes */
+ if (flush == Z_TREES) {
+ DROPBITS(2);
+ goto inf_leave;
+ }
break;
case 2: /* dynamic block */
Tracev((stderr, "inflate: dynamic codes block%s\n",
@@ -816,6 +857,9 @@
Tracev((stderr, "inflate: stored length %u\n",
state->length));
INITBITS();
+ state->mode = COPY_;
+ if (flush == Z_TREES) goto inf_leave;
+ case COPY_:
state->mode = COPY;
case COPY:
copy = state->length;
@@ -876,19 +920,19 @@
case CODELENS:
while (state->have < state->nlen + state->ndist) {
for (;;) {
- this = state->lencode[BITS(state->lenbits)];
- if ((unsigned)(this.bits) <= bits) break;
+ here = state->lencode[BITS(state->lenbits)];
+ if ((unsigned)(here.bits) <= bits) break;
PULLBYTE();
}
- if (this.val < 16) {
- NEEDBITS(this.bits);
- DROPBITS(this.bits);
- state->lens[state->have++] = this.val;
+ if (here.val < 16) {
+ NEEDBITS(here.bits);
+ DROPBITS(here.bits);
+ state->lens[state->have++] = here.val;
}
else {
- if (this.val == 16) {
- NEEDBITS(this.bits + 2);
- DROPBITS(this.bits);
+ if (here.val == 16) {
+ NEEDBITS(here.bits + 2);
+ DROPBITS(here.bits);
if (state->have == 0) {
strm->msg = (char *)"invalid bit length repeat";
state->mode = BAD;
@@ -898,16 +942,16 @@
copy = 3 + BITS(2);
DROPBITS(2);
}
- else if (this.val == 17) {
- NEEDBITS(this.bits + 3);
- DROPBITS(this.bits);
+ else if (here.val == 17) {
+ NEEDBITS(here.bits + 3);
+ DROPBITS(here.bits);
len = 0;
copy = 3 + BITS(3);
DROPBITS(3);
}
else {
- NEEDBITS(this.bits + 7);
- DROPBITS(this.bits);
+ NEEDBITS(here.bits + 7);
+ DROPBITS(here.bits);
len = 0;
copy = 11 + BITS(7);
DROPBITS(7);
@@ -925,7 +969,16 @@
/* handle error breaks in while */
if (state->mode == BAD) break;
- /* build code tables */
+ /* check for end-of-block code (better have one) */
+ if (state->lens[256] == 0) {
+ strm->msg = (char *)"invalid code -- missing end-of-block";
+ state->mode = BAD;
+ break;
+ }
+
+ /* build code tables -- note: do not change the lenbits or distbits
+ values here (9 and 6) without reading the comments in inftrees.h
+ concerning the ENOUGH constants, which depend on those values */
state->next = state->codes;
state->lencode = (code const FAR *)(state->next);
state->lenbits = 9;
@@ -946,88 +999,102 @@
break;
}
Tracev((stderr, "inflate: codes ok\n"));
+ state->mode = LEN_;
+ if (flush == Z_TREES) goto inf_leave;
+ case LEN_:
state->mode = LEN;
case LEN:
if (have >= 6 && left >= 258) {
RESTORE();
inflate_fast(strm, out);
LOAD();
+ if (state->mode == TYPE)
+ state->back = -1;
break;
}
+ state->back = 0;
for (;;) {
- this = state->lencode[BITS(state->lenbits)];
- if ((unsigned)(this.bits) <= bits) break;
+ here = state->lencode[BITS(state->lenbits)];
+ if ((unsigned)(here.bits) <= bits) break;
PULLBYTE();
}
- if (this.op && (this.op & 0xf0) == 0) {
- last = this;
+ if (here.op && (here.op & 0xf0) == 0) {
+ last = here;
for (;;) {
- this = state->lencode[last.val +
+ here = state->lencode[last.val +
(BITS(last.bits + last.op) >> last.bits)];
- if ((unsigned)(last.bits + this.bits) <= bits) break;
+ if ((unsigned)(last.bits + here.bits) <= bits) break;
PULLBYTE();
}
DROPBITS(last.bits);
+ state->back += last.bits;
}
- DROPBITS(this.bits);
- state->length = (unsigned)this.val;
- if ((int)(this.op) == 0) {
- Tracevv((stderr, this.val >= 0x20 && this.val < 0x7f ?
+ DROPBITS(here.bits);
+ state->back += here.bits;
+ state->length = (unsigned)here.val;
+ if ((int)(here.op) == 0) {
+ Tracevv((stderr, here.val >= 0x20 && here.val < 0x7f ?
"inflate: literal '%c'\n" :
- "inflate: literal 0x%02x\n", this.val));
+ "inflate: literal 0x%02x\n", here.val));
state->mode = LIT;
break;
}
- if (this.op & 32) {
+ if (here.op & 32) {
Tracevv((stderr, "inflate: end of block\n"));
+ state->back = -1;
state->mode = TYPE;
break;
}
- if (this.op & 64) {
+ if (here.op & 64) {
strm->msg = (char *)"invalid literal/length code";
state->mode = BAD;
break;
}
- state->extra = (unsigned)(this.op) & 15;
+ state->extra = (unsigned)(here.op) & 15;
state->mode = LENEXT;
case LENEXT:
if (state->extra) {
NEEDBITS(state->extra);
state->length += BITS(state->extra);
DROPBITS(state->extra);
+ state->back += state->extra;
}
Tracevv((stderr, "inflate: length %u\n", state->length));
+ state->was = state->length;
state->mode = DIST;
case DIST:
for (;;) {
- this = state->distcode[BITS(state->distbits)];
- if ((unsigned)(this.bits) <= bits) break;
+ here = state->distcode[BITS(state->distbits)];
+ if ((unsigned)(here.bits) <= bits) break;
PULLBYTE();
}
- if ((this.op & 0xf0) == 0) {
- last = this;
+ if ((here.op & 0xf0) == 0) {
+ last = here;
for (;;) {
- this = state->distcode[last.val +
+ here = state->distcode[last.val +
(BITS(last.bits + last.op) >> last.bits)];
- if ((unsigned)(last.bits + this.bits) <= bits) break;
+ if ((unsigned)(last.bits + here.bits) <= bits) break;
PULLBYTE();
}
DROPBITS(last.bits);
+ state->back += last.bits;
}
- DROPBITS(this.bits);
- if (this.op & 64) {
+ DROPBITS(here.bits);
+ state->back += here.bits;
+ if (here.op & 64) {
strm->msg = (char *)"invalid distance code";
state->mode = BAD;
break;
}
- state->offset = (unsigned)this.val;
- state->extra = (unsigned)(this.op) & 15;
+ state->offset = (unsigned)here.val;
+ state->extra = (unsigned)(here.op) & 15;
state->mode = DISTEXT;
case DISTEXT:
if (state->extra) {
NEEDBITS(state->extra);
state->offset += BITS(state->extra);
DROPBITS(state->extra);
+ state->back += state->extra;
}
#ifdef INFLATE_STRICT
if (state->offset > state->dmax) {
@@ -1036,11 +1103,6 @@
break;
}
#endif
- if (state->offset > state->whave + out - left) {
- strm->msg = (char *)"invalid distance too far back";
- state->mode = BAD;
- break;
- }
Tracevv((stderr, "inflate: distance %u\n", state->offset));
state->mode = MATCH;
case MATCH:
@@ -1048,12 +1110,32 @@
copy = out - left;
if (state->offset > copy) { /* copy from window */
copy = state->offset - copy;
- if (copy > state->write) {
- copy -= state->write;
+ if (copy > state->whave) {
+ if (state->sane) {
+ strm->msg = (char *)"invalid distance too far back";
+ state->mode = BAD;
+ break;
+ }
+#ifdef INFLATE_ALLOW_INVALID_DISTANCE_TOOFAR_ARRR
+ Trace((stderr, "inflate.c too far\n"));
+ copy -= state->whave;
+ if (copy > state->length) copy = state->length;
+ if (copy > left) copy = left;
+ left -= copy;
+ state->length -= copy;
+ do {
+ *put++ = 0;
+ } while (--copy);
+ if (state->length == 0) state->mode = LEN;
+ break;
+#endif
+ }
+ if (copy > state->wnext) {
+ copy -= state->wnext;
from = state->window + (state->wsize - copy);
}
else
- from = state->window + (state->write - copy);
+ from = state->window + (state->wnext - copy);
if (copy > state->length) copy = state->length;
}
else { /* copy from output */
@@ -1146,7 +1228,8 @@
strm->adler = state->check =
UPDATE(state->check, strm->next_out - out, out);
strm->data_type = state->bits + (state->last ? 64 : 0) +
- (state->mode == TYPE ? 128 : 0);
+ (state->mode == TYPE ? 128 : 0) +
+ (state->mode == LEN_ || state->mode == COPY_ ? 256 : 0);
if (((in == 0 && out == 0) || flush == Z_FINISH) && ret == Z_OK)
ret = Z_BUF_ERROR;
return ret;
@@ -1366,3 +1449,32 @@
dest->state = (struct internal_state FAR *)copy;
return Z_OK;
}
+
+int ZEXPORT inflateUndermine(strm, subvert)
+z_streamp strm;
+int subvert;
+{
+ struct inflate_state FAR *state;
+
+ if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR;
+ state = (struct inflate_state FAR *)strm->state;
+ state->sane = !subvert;
+#ifdef INFLATE_ALLOW_INVALID_DISTANCE_TOOFAR_ARRR
+ return Z_OK;
+#else
+ state->sane = 1;
+ return Z_DATA_ERROR;
+#endif
+}
+
+long ZEXPORT inflateMark(strm)
+z_streamp strm;
+{
+ struct inflate_state FAR *state;
+
+ if (strm == Z_NULL || strm->state == Z_NULL) return -1L << 16;
+ state = (struct inflate_state FAR *)strm->state;
+ return ((long)(state->back) << 16) +
+ (state->mode == COPY ? state->length :
+ (state->mode == MATCH ? state->was - state->length : 0));
+}
diff --git a/inflate.h b/inflate.h
index 07bd3e7..95f4986 100644
--- a/inflate.h
+++ b/inflate.h
@@ -1,5 +1,5 @@
/* inflate.h -- internal inflate state definition
- * Copyright (C) 1995-2004 Mark Adler
+ * Copyright (C) 1995-2009 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@@ -32,11 +32,13 @@
TYPE, /* i: waiting for type bits, including last-flag bit */
TYPEDO, /* i: same, but skip check to exit inflate on new block */
STORED, /* i: waiting for stored size (length and complement) */
+ COPY_, /* i/o: same as COPY below, but only first time in */
COPY, /* i/o: waiting for input or output to copy stored block */
TABLE, /* i: waiting for dynamic block table lengths */
LENLENS, /* i: waiting for code length code lengths */
CODELENS, /* i: waiting for length/lit and distance code lengths */
- LEN, /* i: waiting for length/lit code */
+ LEN_, /* i: same as LEN below, but only first time in */
+ LEN, /* i: waiting for length/lit/eob code */
LENEXT, /* i: waiting for length extra bits */
DIST, /* i: waiting for distance code */
DISTEXT, /* i: waiting for distance extra bits */
@@ -53,19 +55,21 @@
/*
State transitions between above modes -
- (most modes can go to the BAD or MEM mode -- not shown for clarity)
+ (most modes can go to BAD or MEM on error -- not shown for clarity)
Process header:
- HEAD -> (gzip) or (zlib)
- (gzip) -> FLAGS -> TIME -> OS -> EXLEN -> EXTRA -> NAME
- NAME -> COMMENT -> HCRC -> TYPE
+ HEAD -> (gzip) or (zlib) or (raw)
+ (gzip) -> FLAGS -> TIME -> OS -> EXLEN -> EXTRA -> NAME -> COMMENT ->
+ HCRC -> TYPE
(zlib) -> DICTID or TYPE
DICTID -> DICT -> TYPE
+ (raw) -> TYPEDO
Read deflate blocks:
- TYPE -> STORED or TABLE or LEN or CHECK
- STORED -> COPY -> TYPE
- TABLE -> LENLENS -> CODELENS -> LEN
- Read deflate codes:
+ TYPE -> TYPEDO -> STORED or TABLE or LEN_ or CHECK
+ STORED -> COPY_ -> COPY -> TYPE
+ TABLE -> LENLENS -> CODELENS -> LEN_
+ LEN_ -> LEN
+ Read deflate codes in fixed or dynamic block:
LEN -> LENEXT or LIT or TYPE
LENEXT -> DIST -> DISTEXT -> MATCH -> LEN
LIT -> LEN
@@ -73,7 +77,7 @@
CHECK -> LENGTH -> DONE
*/
-/* state maintained between inflate() calls. Approximately 7K bytes. */
+/* state maintained between inflate() calls. Approximately 10K bytes. */
struct inflate_state {
inflate_mode mode; /* current inflate mode */
int last; /* true if processing last block */
@@ -88,7 +92,7 @@
unsigned wbits; /* log base 2 of requested window size */
unsigned wsize; /* window size or zero if not using window */
unsigned whave; /* valid bytes in the window */
- unsigned write; /* window write index */
+ unsigned wnext; /* window write index */
unsigned char FAR *window; /* allocated sliding window, if needed */
/* bit accumulator */
unsigned long hold; /* input bit accumulator */
@@ -112,4 +116,7 @@
unsigned short lens[320]; /* temporary storage for code lengths */
unsigned short work[288]; /* work area for code table building */
code codes[ENOUGH]; /* space for code tables */
+ int sane; /* if false, allow invalid distance too far */
+ int back; /* bits back of last unprocessed length/lit */
+ unsigned was; /* initial length of match */
};
diff --git a/inftrees.c b/inftrees.c
index 8a9c13f..11e9c52 100644
--- a/inftrees.c
+++ b/inftrees.c
@@ -1,5 +1,5 @@
/* inftrees.c -- generate Huffman trees for efficient decoding
- * Copyright (C) 1995-2005 Mark Adler
+ * Copyright (C) 1995-2010 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@@ -9,7 +9,7 @@
#define MAXBITS 15
const char inflate_copyright[] =
- " inflate 1.2.3 Copyright 1995-2005 Mark Adler ";
+ " inflate 1.2.5 Copyright 1995-2010 Mark Adler ";
/*
If you use the zlib library in a product, an acknowledgment is welcome
in the documentation of your product. If for some reason you cannot
@@ -29,7 +29,7 @@
table index bits. It will differ if the request is greater than the
longest code or if it is less than the shortest code.
*/
-int inflate_table(type, lens, codes, table, bits, work)
+int ZLIB_INTERNAL inflate_table(type, lens, codes, table, bits, work)
codetype type;
unsigned short FAR *lens;
unsigned codes;
@@ -50,7 +50,7 @@
unsigned fill; /* index for replicating entries */
unsigned low; /* low bits for current root entry */
unsigned mask; /* mask for low root bits */
- code this; /* table entry for duplication */
+ code here; /* table entry for duplication */
code FAR *next; /* next available space in table */
const unsigned short FAR *base; /* base value table to use */
const unsigned short FAR *extra; /* extra bits table to use */
@@ -62,7 +62,7 @@
35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258, 0, 0};
static const unsigned short lext[31] = { /* Length codes 257..285 extra */
16, 16, 16, 16, 16, 16, 16, 16, 17, 17, 17, 17, 18, 18, 18, 18,
- 19, 19, 19, 19, 20, 20, 20, 20, 21, 21, 21, 21, 16, 201, 196};
+ 19, 19, 19, 19, 20, 20, 20, 20, 21, 21, 21, 21, 16, 73, 195};
static const unsigned short dbase[32] = { /* Distance codes 0..29 base */
1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193,
257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145,
@@ -115,15 +115,15 @@
if (count[max] != 0) break;
if (root > max) root = max;
if (max == 0) { /* no symbols to code at all */
- this.op = (unsigned char)64; /* invalid code marker */
- this.bits = (unsigned char)1;
- this.val = (unsigned short)0;
- *(*table)++ = this; /* make a table to force an error */
- *(*table)++ = this;
+ here.op = (unsigned char)64; /* invalid code marker */
+ here.bits = (unsigned char)1;
+ here.val = (unsigned short)0;
+ *(*table)++ = here; /* make a table to force an error */
+ *(*table)++ = here;
*bits = 1;
return 0; /* no symbols, but wait for decoding to report error */
}
- for (min = 1; min <= MAXBITS; min++)
+ for (min = 1; min < max; min++)
if (count[min] != 0) break;
if (root < min) root = min;
@@ -166,11 +166,10 @@
entered in the tables.
used keeps track of how many table entries have been allocated from the
- provided *table space. It is checked when a LENS table is being made
- against the space in *table, ENOUGH, minus the maximum space needed by
- the worst case distance code, MAXD. This should never happen, but the
- sufficiency of ENOUGH has not been proven exhaustively, hence the check.
- This assumes that when type == LENS, bits == 9.
+ provided *table space. It is checked for LENS and DIST tables against
+ the constants ENOUGH_LENS and ENOUGH_DISTS to guard against changes in
+ the initial root table size constants. See the comments in inftrees.h
+ for more information.
sym increments through all symbols, and the loop terminates when
all codes of length max, i.e. all codes, have been processed. This
@@ -209,24 +208,25 @@
mask = used - 1; /* mask for comparing low */
/* check available table space */
- if (type == LENS && used >= ENOUGH - MAXD)
+ if ((type == LENS && used >= ENOUGH_LENS) ||
+ (type == DISTS && used >= ENOUGH_DISTS))
return 1;
/* process all codes and make table entries */
for (;;) {
/* create table entry */
- this.bits = (unsigned char)(len - drop);
+ here.bits = (unsigned char)(len - drop);
if ((int)(work[sym]) < end) {
- this.op = (unsigned char)0;
- this.val = work[sym];
+ here.op = (unsigned char)0;
+ here.val = work[sym];
}
else if ((int)(work[sym]) > end) {
- this.op = (unsigned char)(extra[work[sym]]);
- this.val = base[work[sym]];
+ here.op = (unsigned char)(extra[work[sym]]);
+ here.val = base[work[sym]];
}
else {
- this.op = (unsigned char)(32 + 64); /* end of block */
- this.val = 0;
+ here.op = (unsigned char)(32 + 64); /* end of block */
+ here.val = 0;
}
/* replicate for those indices with low len bits equal to huff */
@@ -235,7 +235,7 @@
min = fill; /* save offset to next table */
do {
fill -= incr;
- next[(huff >> drop) + fill] = this;
+ next[(huff >> drop) + fill] = here;
} while (fill != 0);
/* backwards increment the len-bit code huff */
@@ -277,7 +277,8 @@
/* check for enough space */
used += 1U << curr;
- if (type == LENS && used >= ENOUGH - MAXD)
+ if ((type == LENS && used >= ENOUGH_LENS) ||
+ (type == DISTS && used >= ENOUGH_DISTS))
return 1;
/* point entry in root table to sub-table */
@@ -295,20 +296,20 @@
through high index bits. When the current sub-table is filled, the loop
drops back to the root table to fill in any remaining entries there.
*/
- this.op = (unsigned char)64; /* invalid code marker */
- this.bits = (unsigned char)(len - drop);
- this.val = (unsigned short)0;
+ here.op = (unsigned char)64; /* invalid code marker */
+ here.bits = (unsigned char)(len - drop);
+ here.val = (unsigned short)0;
while (huff != 0) {
/* when done with sub-table, drop back to root table */
if (drop != 0 && (huff & mask) != low) {
drop = 0;
len = root;
next = *table;
- this.bits = (unsigned char)len;
+ here.bits = (unsigned char)len;
}
/* put invalid code marker in table */
- next[huff >> drop] = this;
+ next[huff >> drop] = here;
/* backwards increment the len-bit code huff */
incr = 1U << (len - 1);
diff --git a/inftrees.h b/inftrees.h
index b1104c8..baa53a0 100644
--- a/inftrees.h
+++ b/inftrees.h
@@ -1,5 +1,5 @@
/* inftrees.h -- header to use inftrees.c
- * Copyright (C) 1995-2005 Mark Adler
+ * Copyright (C) 1995-2005, 2010 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@@ -35,21 +35,28 @@
01000000 - invalid code
*/
-/* Maximum size of dynamic tree. The maximum found in a long but non-
- exhaustive search was 1444 code structures (852 for length/literals
- and 592 for distances, the latter actually the result of an
- exhaustive search). The true maximum is not known, but the value
- below is more than safe. */
-#define ENOUGH 2048
-#define MAXD 592
+/* Maximum size of the dynamic table. The maximum number of code structures is
+ 1444, which is the sum of 852 for literal/length codes and 592 for distance
+ codes. These values were found by exhaustive searches using the program
+ examples/enough.c found in the zlib distribtution. The arguments to that
+ program are the number of symbols, the initial root table size, and the
+ maximum bit length of a code. "enough 286 9 15" for literal/length codes
+ returns returns 852, and "enough 30 6 15" for distance codes returns 592.
+ The initial root table size (9 or 6) is found in the fifth argument of the
+ inflate_table() calls in inflate.c and infback.c. If the root table size is
+ changed, then these maximum sizes would be need to be recalculated and
+ updated. */
+#define ENOUGH_LENS 852
+#define ENOUGH_DISTS 592
+#define ENOUGH (ENOUGH_LENS+ENOUGH_DISTS)
-/* Type of code to build for inftable() */
+/* Type of code to build for inflate_table() */
typedef enum {
CODES,
LENS,
DISTS
} codetype;
-extern int inflate_table OF((codetype type, unsigned short FAR *lens,
+int ZLIB_INTERNAL inflate_table OF((codetype type, unsigned short FAR *lens,
unsigned codes, code FAR * FAR *table,
unsigned FAR *bits, unsigned short FAR *work));
diff --git a/trees.c b/trees.c
index 0cbfae2..56e9bb1 100644
--- a/trees.c
+++ b/trees.c
@@ -1,5 +1,6 @@
/* trees.c -- output deflated data using Huffman coding
- * Copyright (C) 1995-2005 Jean-loup Gailly
+ * Copyright (C) 1995-2010 Jean-loup Gailly
+ * detect_data_type() function provided freely by Cosmin Truta, 2006
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@@ -29,7 +30,7 @@
* Addison-Wesley, 1983. ISBN 0-201-06672-6.
*/
-/* @(#) $Id: trees.c,v 3.6 2005/08/04 19:14:14 tor%cs.brown.edu Exp $ */
+/* @(#) $Id$ */
/* #define GEN_TREES_H */
@@ -152,7 +153,7 @@
int blcodes));
local void compress_block OF((deflate_state *s, ct_data *ltree,
ct_data *dtree));
-local void set_data_type OF((deflate_state *s));
+local int detect_data_type OF((deflate_state *s));
local unsigned bi_reverse OF((unsigned value, int length));
local void bi_windup OF((deflate_state *s));
local void bi_flush OF((deflate_state *s));
@@ -203,12 +204,12 @@
* unused bits in value.
*/
if (s->bi_valid > (int)Buf_size - length) {
- s->bi_buf |= (value << s->bi_valid);
+ s->bi_buf |= (ush)value << s->bi_valid;
put_short(s, s->bi_buf);
s->bi_buf = (ush)value >> (Buf_size - s->bi_valid);
s->bi_valid += length - Buf_size;
} else {
- s->bi_buf |= value << s->bi_valid;
+ s->bi_buf |= (ush)value << s->bi_valid;
s->bi_valid += length;
}
}
@@ -218,12 +219,12 @@
{ int len = length;\
if (s->bi_valid > (int)Buf_size - len) {\
int val = value;\
- s->bi_buf |= (val << s->bi_valid);\
+ s->bi_buf |= (ush)val << s->bi_valid;\
put_short(s, s->bi_buf);\
s->bi_buf = (ush)val >> (Buf_size - s->bi_valid);\
s->bi_valid += len - Buf_size;\
} else {\
- s->bi_buf |= (value) << s->bi_valid;\
+ s->bi_buf |= (ush)(value) << s->bi_valid;\
s->bi_valid += len;\
}\
}
@@ -250,11 +251,13 @@
if (static_init_done) return;
/* For some embedded targets, global variables are not initialized: */
+#ifdef NO_INIT_GLOBAL_POINTERS
static_l_desc.static_tree = static_ltree;
static_l_desc.extra_bits = extra_lbits;
static_d_desc.static_tree = static_dtree;
static_d_desc.extra_bits = extra_dbits;
static_bl_desc.extra_bits = extra_blbits;
+#endif
/* Initialize the mapping length (0..255) -> length code (0..28) */
length = 0;
@@ -348,13 +351,14 @@
static_dtree[i].Len, SEPARATOR(i, D_CODES-1, 5));
}
- fprintf(header, "const uch _dist_code[DIST_CODE_LEN] = {\n");
+ fprintf(header, "const uch ZLIB_INTERNAL _dist_code[DIST_CODE_LEN] = {\n");
for (i = 0; i < DIST_CODE_LEN; i++) {
fprintf(header, "%2u%s", _dist_code[i],
SEPARATOR(i, DIST_CODE_LEN-1, 20));
}
- fprintf(header, "const uch _length_code[MAX_MATCH-MIN_MATCH+1]= {\n");
+ fprintf(header,
+ "const uch ZLIB_INTERNAL _length_code[MAX_MATCH-MIN_MATCH+1]= {\n");
for (i = 0; i < MAX_MATCH-MIN_MATCH+1; i++) {
fprintf(header, "%2u%s", _length_code[i],
SEPARATOR(i, MAX_MATCH-MIN_MATCH, 20));
@@ -379,7 +383,7 @@
/* ===========================================================================
* Initialize the tree data structures for a new zlib stream.
*/
-void _tr_init(s)
+void ZLIB_INTERNAL _tr_init(s)
deflate_state *s;
{
tr_static_init();
@@ -864,13 +868,13 @@
/* ===========================================================================
* Send a stored block
*/
-void _tr_stored_block(s, buf, stored_len, eof)
+void ZLIB_INTERNAL _tr_stored_block(s, buf, stored_len, last)
deflate_state *s;
charf *buf; /* input block */
ulg stored_len; /* length of input block */
- int eof; /* true if this is the last block for a file */
+ int last; /* one if this is the last block for a file */
{
- send_bits(s, (STORED_BLOCK<<1)+eof, 3); /* send block type */
+ send_bits(s, (STORED_BLOCK<<1)+last, 3); /* send block type */
#ifdef DEBUG
s->compressed_len = (s->compressed_len + 3 + 7) & (ulg)~7L;
s->compressed_len += (stored_len + 4) << 3;
@@ -889,7 +893,7 @@
* To simplify the code, we assume the worst case of last real code encoded
* on one bit only.
*/
-void _tr_align(s)
+void ZLIB_INTERNAL _tr_align(s)
deflate_state *s;
{
send_bits(s, STATIC_TREES<<1, 3);
@@ -918,11 +922,11 @@
* Determine the best encoding for the current block: dynamic trees, static
* trees or store, and output the encoded block to the zip file.
*/
-void _tr_flush_block(s, buf, stored_len, eof)
+void ZLIB_INTERNAL _tr_flush_block(s, buf, stored_len, last)
deflate_state *s;
charf *buf; /* input block, or NULL if too old */
ulg stored_len; /* length of input block */
- int eof; /* true if this is the last block for a file */
+ int last; /* one if this is the last block for a file */
{
ulg opt_lenb, static_lenb; /* opt_len and static_len in bytes */
int max_blindex = 0; /* index of last bit length code of non zero freq */
@@ -931,8 +935,8 @@
if (s->level > 0) {
/* Check if the file is binary or text */
- if (stored_len > 0 && s->strm->data_type == Z_UNKNOWN)
- set_data_type(s);
+ if (s->strm->data_type == Z_UNKNOWN)
+ s->strm->data_type = detect_data_type(s);
/* Construct the literal and distance trees */
build_tree(s, (tree_desc *)(&(s->l_desc)));
@@ -978,20 +982,20 @@
* successful. If LIT_BUFSIZE <= WSIZE, it is never too late to
* transform a block into a stored block.
*/
- _tr_stored_block(s, buf, stored_len, eof);
+ _tr_stored_block(s, buf, stored_len, last);
#ifdef FORCE_STATIC
} else if (static_lenb >= 0) { /* force static trees */
#else
} else if (s->strategy == Z_FIXED || static_lenb == opt_lenb) {
#endif
- send_bits(s, (STATIC_TREES<<1)+eof, 3);
+ send_bits(s, (STATIC_TREES<<1)+last, 3);
compress_block(s, (ct_data *)static_ltree, (ct_data *)static_dtree);
#ifdef DEBUG
s->compressed_len += 3 + s->static_len;
#endif
} else {
- send_bits(s, (DYN_TREES<<1)+eof, 3);
+ send_bits(s, (DYN_TREES<<1)+last, 3);
send_all_trees(s, s->l_desc.max_code+1, s->d_desc.max_code+1,
max_blindex+1);
compress_block(s, (ct_data *)s->dyn_ltree, (ct_data *)s->dyn_dtree);
@@ -1005,21 +1009,21 @@
*/
init_block(s);
- if (eof) {
+ if (last) {
bi_windup(s);
#ifdef DEBUG
s->compressed_len += 7; /* align on byte boundary */
#endif
}
Tracev((stderr,"\ncomprlen %lu(%lu) ", s->compressed_len>>3,
- s->compressed_len-7*eof));
+ s->compressed_len-7*last));
}
/* ===========================================================================
* Save the match info and tally the frequency counts. Return true if
* the current block must be flushed.
*/
-int _tr_tally (s, dist, lc)
+int ZLIB_INTERNAL _tr_tally (s, dist, lc)
deflate_state *s;
unsigned dist; /* distance of matched string */
unsigned lc; /* match length-MIN_MATCH or unmatched char (if dist==0) */
@@ -1118,24 +1122,45 @@
}
/* ===========================================================================
- * Set the data type to BINARY or TEXT, using a crude approximation:
- * set it to Z_TEXT if all symbols are either printable characters (33 to 255)
- * or white spaces (9 to 13, or 32); or set it to Z_BINARY otherwise.
+ * Check if the data type is TEXT or BINARY, using the following algorithm:
+ * - TEXT if the two conditions below are satisfied:
+ * a) There are no non-portable control characters belonging to the
+ * "black list" (0..6, 14..25, 28..31).
+ * b) There is at least one printable character belonging to the
+ * "white list" (9 {TAB}, 10 {LF}, 13 {CR}, 32..255).
+ * - BINARY otherwise.
+ * - The following partially-portable control characters form a
+ * "gray list" that is ignored in this detection algorithm:
+ * (7 {BEL}, 8 {BS}, 11 {VT}, 12 {FF}, 26 {SUB}, 27 {ESC}).
* IN assertion: the fields Freq of dyn_ltree are set.
*/
-local void set_data_type(s)
+local int detect_data_type(s)
deflate_state *s;
{
+ /* black_mask is the bit mask of black-listed bytes
+ * set bits 0..6, 14..25, and 28..31
+ * 0xf3ffc07f = binary 11110011111111111100000001111111
+ */
+ unsigned long black_mask = 0xf3ffc07fUL;
int n;
- for (n = 0; n < 9; n++)
+ /* Check for non-textual ("black-listed") bytes. */
+ for (n = 0; n <= 31; n++, black_mask >>= 1)
+ if ((black_mask & 1) && (s->dyn_ltree[n].Freq != 0))
+ return Z_BINARY;
+
+ /* Check for textual ("white-listed") bytes. */
+ if (s->dyn_ltree[9].Freq != 0 || s->dyn_ltree[10].Freq != 0
+ || s->dyn_ltree[13].Freq != 0)
+ return Z_TEXT;
+ for (n = 32; n < LITERALS; n++)
if (s->dyn_ltree[n].Freq != 0)
- break;
- if (n == 9)
- for (n = 14; n < 32; n++)
- if (s->dyn_ltree[n].Freq != 0)
- break;
- s->strm->data_type = (n == 32) ? Z_TEXT : Z_BINARY;
+ return Z_TEXT;
+
+ /* There are no "black-listed" or "white-listed" bytes:
+ * this stream either is empty or has tolerated ("gray-listed") bytes only.
+ */
+ return Z_BINARY;
}
/* ===========================================================================
diff --git a/trees.h b/trees.h
index 72facf9..d35639d 100644
--- a/trees.h
+++ b/trees.h
@@ -70,7 +70,7 @@
{{19},{ 5}}, {{11},{ 5}}, {{27},{ 5}}, {{ 7},{ 5}}, {{23},{ 5}}
};
-const uch _dist_code[DIST_CODE_LEN] = {
+const uch ZLIB_INTERNAL _dist_code[DIST_CODE_LEN] = {
0, 1, 2, 3, 4, 4, 5, 5, 6, 6, 6, 6, 7, 7, 7, 7, 8, 8, 8, 8,
8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 9, 9, 10, 10, 10, 10, 10, 10, 10, 10,
10, 10, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11,
@@ -99,7 +99,7 @@
29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29
};
-const uch _length_code[MAX_MATCH-MIN_MATCH+1]= {
+const uch ZLIB_INTERNAL _length_code[MAX_MATCH-MIN_MATCH+1]= {
0, 1, 2, 3, 4, 5, 6, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 12, 12,
13, 13, 13, 13, 14, 14, 14, 14, 15, 15, 15, 15, 16, 16, 16, 16, 16, 16, 16, 16,
17, 17, 17, 17, 17, 17, 17, 17, 18, 18, 18, 18, 18, 18, 18, 18, 19, 19, 19, 19,
diff --git a/uncompr.c b/uncompr.c
index c3d7716..ad98be3 100644
--- a/uncompr.c
+++ b/uncompr.c
@@ -1,9 +1,9 @@
/* uncompr.c -- decompress a memory buffer
- * Copyright (C) 1995-2003 Jean-loup Gailly.
+ * Copyright (C) 1995-2003, 2010 Jean-loup Gailly.
* For conditions of distribution and use, see copyright notice in zlib.h
*/
-/* @(#) $Id: uncompr.c,v 3.6 2005/08/04 19:14:14 tor%cs.brown.edu Exp $ */
+/* @(#) $Id$ */
#define ZLIB_INTERNAL
#include "zlib.h"
@@ -16,8 +16,6 @@
been saved previously by the compressor and transmitted to the decompressor
by some mechanism outside the scope of this compression library.)
Upon exit, destLen is the actual size of the compressed buffer.
- This function can be used to decompress a whole file at once if the
- input file is mmap'ed.
uncompress returns Z_OK if success, Z_MEM_ERROR if there was not
enough memory, Z_BUF_ERROR if there was not enough room in the output
diff --git a/zconf.h b/zconf.h
index b0e17bb..02ce56c 100644
--- a/zconf.h
+++ b/zconf.h
@@ -1,65 +1,134 @@
/* zconf.h -- configuration of the zlib compression library
- * Copyright (C) 1995-2005 Jean-loup Gailly.
+ * Copyright (C) 1995-2010 Jean-loup Gailly.
* For conditions of distribution and use, see copyright notice in zlib.h
*/
-/* @(#) $Id: zconf.h,v 3.9 2005/08/04 19:14:14 tor%cs.brown.edu Exp $ */
+/* @(#) $Id$ */
#ifndef ZCONF_H
#define ZCONF_H
-/* This include does prefixing as below, but with an updated set of names */
-#include "mozzconf.h"
-
/*
* If you *really* need a unique prefix for all types and library functions,
* compile with -DZ_PREFIX. The "standard" zlib should be compiled without it.
+ * Even better than compiling with -DZ_PREFIX would be to use configure to set
+ * this permanently in zconf.h using "./configure --zprefix".
*/
-#ifdef Z_PREFIX
-# define deflateInit_ z_deflateInit_
-# define deflate z_deflate
-# define deflateEnd z_deflateEnd
-# define inflateInit_ z_inflateInit_
-# define inflate z_inflate
-# define inflateEnd z_inflateEnd
-# define deflateInit2_ z_deflateInit2_
-# define deflateSetDictionary z_deflateSetDictionary
-# define deflateCopy z_deflateCopy
-# define deflateReset z_deflateReset
-# define deflateParams z_deflateParams
-# define deflateBound z_deflateBound
-# define deflatePrime z_deflatePrime
-# define inflateInit2_ z_inflateInit2_
-# define inflateSetDictionary z_inflateSetDictionary
-# define inflateSync z_inflateSync
-# define inflateSyncPoint z_inflateSyncPoint
-# define inflateCopy z_inflateCopy
-# define inflateReset z_inflateReset
-# define inflateBack z_inflateBack
-# define inflateBackEnd z_inflateBackEnd
+#ifdef Z_PREFIX /* may be set to #if 1 by ./configure */
+
+/* all linked symbols */
+# define _dist_code z__dist_code
+# define _length_code z__length_code
+# define _tr_align z__tr_align
+# define _tr_flush_block z__tr_flush_block
+# define _tr_init z__tr_init
+# define _tr_stored_block z__tr_stored_block
+# define _tr_tally z__tr_tally
+# define adler32 z_adler32
+# define adler32_combine z_adler32_combine
+# define adler32_combine64 z_adler32_combine64
# define compress z_compress
# define compress2 z_compress2
# define compressBound z_compressBound
-# define uncompress z_uncompress
-# define adler32 z_adler32
# define crc32 z_crc32
+# define crc32_combine z_crc32_combine
+# define crc32_combine64 z_crc32_combine64
+# define deflate z_deflate
+# define deflateBound z_deflateBound
+# define deflateCopy z_deflateCopy
+# define deflateEnd z_deflateEnd
+# define deflateInit2_ z_deflateInit2_
+# define deflateInit_ z_deflateInit_
+# define deflateParams z_deflateParams
+# define deflatePrime z_deflatePrime
+# define deflateReset z_deflateReset
+# define deflateSetDictionary z_deflateSetDictionary
+# define deflateSetHeader z_deflateSetHeader
+# define deflateTune z_deflateTune
+# define deflate_copyright z_deflate_copyright
# define get_crc_table z_get_crc_table
+# define gz_error z_gz_error
+# define gz_intmax z_gz_intmax
+# define gz_strwinerror z_gz_strwinerror
+# define gzbuffer z_gzbuffer
+# define gzclearerr z_gzclearerr
+# define gzclose z_gzclose
+# define gzclose_r z_gzclose_r
+# define gzclose_w z_gzclose_w
+# define gzdirect z_gzdirect
+# define gzdopen z_gzdopen
+# define gzeof z_gzeof
+# define gzerror z_gzerror
+# define gzflush z_gzflush
+# define gzgetc z_gzgetc
+# define gzgets z_gzgets
+# define gzoffset z_gzoffset
+# define gzoffset64 z_gzoffset64
+# define gzopen z_gzopen
+# define gzopen64 z_gzopen64
+# define gzprintf z_gzprintf
+# define gzputc z_gzputc
+# define gzputs z_gzputs
+# define gzread z_gzread
+# define gzrewind z_gzrewind
+# define gzseek z_gzseek
+# define gzseek64 z_gzseek64
+# define gzsetparams z_gzsetparams
+# define gztell z_gztell
+# define gztell64 z_gztell64
+# define gzungetc z_gzungetc
+# define gzwrite z_gzwrite
+# define inflate z_inflate
+# define inflateBack z_inflateBack
+# define inflateBackEnd z_inflateBackEnd
+# define inflateBackInit_ z_inflateBackInit_
+# define inflateCopy z_inflateCopy
+# define inflateEnd z_inflateEnd
+# define inflateGetHeader z_inflateGetHeader
+# define inflateInit2_ z_inflateInit2_
+# define inflateInit_ z_inflateInit_
+# define inflateMark z_inflateMark
+# define inflatePrime z_inflatePrime
+# define inflateReset z_inflateReset
+# define inflateReset2 z_inflateReset2
+# define inflateSetDictionary z_inflateSetDictionary
+# define inflateSync z_inflateSync
+# define inflateSyncPoint z_inflateSyncPoint
+# define inflateUndermine z_inflateUndermine
+# define inflate_copyright z_inflate_copyright
+# define inflate_fast z_inflate_fast
+# define inflate_table z_inflate_table
+# define uncompress z_uncompress
# define zError z_zError
+# define zcalloc z_zcalloc
+# define zcfree z_zcfree
+# define zlibCompileFlags z_zlibCompileFlags
+# define zlibVersion z_zlibVersion
-# define alloc_func z_alloc_func
-# define free_func z_free_func
-# define in_func z_in_func
-# define out_func z_out_func
+/* all zlib typedefs in zlib.h and zconf.h */
# define Byte z_Byte
-# define uInt z_uInt
-# define uLong z_uLong
# define Bytef z_Bytef
+# define alloc_func z_alloc_func
# define charf z_charf
+# define free_func z_free_func
+# define gzFile z_gzFile
+# define gz_header z_gz_header
+# define gz_headerp z_gz_headerp
+# define in_func z_in_func
# define intf z_intf
+# define out_func z_out_func
+# define uInt z_uInt
# define uIntf z_uIntf
+# define uLong z_uLong
# define uLongf z_uLongf
-# define voidpf z_voidpf
# define voidp z_voidp
+# define voidpc z_voidpc
+# define voidpf z_voidpf
+
+/* all zlib structs in zlib.h and zconf.h */
+# define gz_header_s z_gz_header_s
+# define internal_state z_internal_state
+
#endif
#if defined(__MSDOS__) && !defined(MSDOS)
@@ -287,49 +356,73 @@
typedef Byte *voidp;
#endif
-#if 0 /* HAVE_UNISTD_H -- this line is updated by ./configure */
-# include <sys/types.h> /* for off_t */
-# include <unistd.h> /* for SEEK_* and off_t */
-# ifdef VMS
-# include <unixio.h> /* for off_t */
-# endif
-# define z_off_t off_t
+#ifdef HAVE_UNISTD_H /* may be set to #if 1 by ./configure */
+# define Z_HAVE_UNISTD_H
#endif
+
+#ifdef STDC
+# include <sys/types.h> /* for off_t */
+#endif
+
+/* a little trick to accommodate both "#define _LARGEFILE64_SOURCE" and
+ * "#define _LARGEFILE64_SOURCE 1" as requesting 64-bit operations, (even
+ * though the former does not conform to the LFS document), but considering
+ * both "#undef _LARGEFILE64_SOURCE" and "#define _LARGEFILE64_SOURCE 0" as
+ * equivalently requesting no 64-bit operations
+ */
+#if -_LARGEFILE64_SOURCE - -1 == 1
+# undef _LARGEFILE64_SOURCE
+#endif
+
+#if defined(Z_HAVE_UNISTD_H) || defined(_LARGEFILE64_SOURCE)
+# include <unistd.h> /* for SEEK_* and off_t */
+# ifdef VMS
+# include <unixio.h> /* for off_t */
+# endif
+# ifndef z_off_t
+# define z_off_t off_t
+# endif
+#endif
+
#ifndef SEEK_SET
# define SEEK_SET 0 /* Seek from beginning of file. */
# define SEEK_CUR 1 /* Seek from current position. */
# define SEEK_END 2 /* Set file pointer to EOF plus "offset" */
#endif
+
#ifndef z_off_t
# define z_off_t long
#endif
+#if defined(_LARGEFILE64_SOURCE) && _LFS64_LARGEFILE-0
+# define z_off64_t off64_t
+#else
+# define z_off64_t z_off_t
+#endif
+
#if defined(__OS400__)
# define NO_vsnprintf
#endif
#if defined(__MVS__)
# define NO_vsnprintf
-# ifdef FAR
-# undef FAR
-# endif
#endif
/* MVS linker does not support external names larger than 8 bytes */
#if defined(__MVS__)
-# pragma map(deflateInit_,"DEIN")
-# pragma map(deflateInit2_,"DEIN2")
-# pragma map(deflateEnd,"DEEND")
-# pragma map(deflateBound,"DEBND")
-# pragma map(inflateInit_,"ININ")
-# pragma map(inflateInit2_,"ININ2")
-# pragma map(inflateEnd,"INEND")
-# pragma map(inflateSync,"INSY")
-# pragma map(inflateSetDictionary,"INSEDI")
-# pragma map(compressBound,"CMBND")
-# pragma map(inflate_table,"INTABL")
-# pragma map(inflate_fast,"INFA")
-# pragma map(inflate_copyright,"INCOPY")
+ #pragma map(deflateInit_,"DEIN")
+ #pragma map(deflateInit2_,"DEIN2")
+ #pragma map(deflateEnd,"DEEND")
+ #pragma map(deflateBound,"DEBND")
+ #pragma map(inflateInit_,"ININ")
+ #pragma map(inflateInit2_,"ININ2")
+ #pragma map(inflateEnd,"INEND")
+ #pragma map(inflateSync,"INSY")
+ #pragma map(inflateSetDictionary,"INSEDI")
+ #pragma map(compressBound,"CMBND")
+ #pragma map(inflate_table,"INTABL")
+ #pragma map(inflate_fast,"INFA")
+ #pragma map(inflate_copyright,"INCOPY")
#endif
#endif /* ZCONF_H */
diff --git a/zlib.gyp b/zlib.gyp
index d4ed3eb..87fe006 100644
--- a/zlib.gyp
+++ b/zlib.gyp
@@ -71,6 +71,13 @@
'contrib/minizip/iowin32.c'
],
}],
+ ['OS=="mac"', {
+ # Mac does not have fopen64, ftello64, or fseeko64. We use fopen,
+ # ftell, and fseek instead on Mac.
+ 'defines': [
+ 'USE_FILE32API'
+ ],
+ }],
],
},
],
diff --git a/zlib.h b/zlib.h
index 0228179..bfbba83 100644
--- a/zlib.h
+++ b/zlib.h
@@ -1,7 +1,7 @@
/* zlib.h -- interface of the 'zlib' general purpose compression library
- version 1.2.3, July 18th, 2005
+ version 1.2.5, April 19th, 2010
- Copyright (C) 1995-2005 Jean-loup Gailly and Mark Adler
+ Copyright (C) 1995-2010 Jean-loup Gailly and Mark Adler
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
@@ -37,41 +37,44 @@
extern "C" {
#endif
-#define ZLIB_VERSION "1.2.3"
-#define ZLIB_VERNUM 0x1230
+#define ZLIB_VERSION "1.2.5"
+#define ZLIB_VERNUM 0x1250
+#define ZLIB_VER_MAJOR 1
+#define ZLIB_VER_MINOR 2
+#define ZLIB_VER_REVISION 5
+#define ZLIB_VER_SUBREVISION 0
/*
- The 'zlib' compression library provides in-memory compression and
- decompression functions, including integrity checks of the uncompressed
- data. This version of the library supports only one compression method
- (deflation) but other algorithms will be added later and will have the same
- stream interface.
+ The 'zlib' compression library provides in-memory compression and
+ decompression functions, including integrity checks of the uncompressed data.
+ This version of the library supports only one compression method (deflation)
+ but other algorithms will be added later and will have the same stream
+ interface.
- Compression can be done in a single step if the buffers are large
- enough (for example if an input file is mmap'ed), or can be done by
- repeated calls of the compression function. In the latter case, the
- application must provide more input and/or consume the output
+ Compression can be done in a single step if the buffers are large enough,
+ or can be done by repeated calls of the compression function. In the latter
+ case, the application must provide more input and/or consume the output
(providing more output space) before each call.
- The compressed data format used by default by the in-memory functions is
+ The compressed data format used by default by the in-memory functions is
the zlib format, which is a zlib wrapper documented in RFC 1950, wrapped
around a deflate stream, which is itself documented in RFC 1951.
- The library also supports reading and writing files in gzip (.gz) format
+ The library also supports reading and writing files in gzip (.gz) format
with an interface similar to that of stdio using the functions that start
with "gz". The gzip format is different from the zlib format. gzip is a
gzip wrapper, documented in RFC 1952, wrapped around a deflate stream.
- This library can optionally read and write gzip streams in memory as well.
+ This library can optionally read and write gzip streams in memory as well.
- The zlib format was designed to be compact and fast for use in memory
+ The zlib format was designed to be compact and fast for use in memory
and on communications channels. The gzip format was designed for single-
file compression on file systems, has a larger header than zlib to maintain
directory information, and uses a different, slower check method than zlib.
- The library does not install any signal handler. The decoder checks
- the consistency of the compressed data, so the library should never
- crash even in case of corrupted input.
+ The library does not install any signal handler. The decoder checks
+ the consistency of the compressed data, so the library should never crash
+ even in case of corrupted input.
*/
typedef voidpf (*alloc_func) OF((voidpf opaque, uInt items, uInt size));
@@ -126,45 +129,45 @@
typedef gz_header FAR *gz_headerp;
/*
- The application must update next_in and avail_in when avail_in has
- dropped to zero. It must update next_out and avail_out when avail_out
- has dropped to zero. The application must initialize zalloc, zfree and
- opaque before calling the init function. All other fields are set by the
- compression library and must not be updated by the application.
+ The application must update next_in and avail_in when avail_in has dropped
+ to zero. It must update next_out and avail_out when avail_out has dropped
+ to zero. The application must initialize zalloc, zfree and opaque before
+ calling the init function. All other fields are set by the compression
+ library and must not be updated by the application.
- The opaque value provided by the application will be passed as the first
- parameter for calls of zalloc and zfree. This can be useful for custom
- memory management. The compression library attaches no meaning to the
+ The opaque value provided by the application will be passed as the first
+ parameter for calls of zalloc and zfree. This can be useful for custom
+ memory management. The compression library attaches no meaning to the
opaque value.
- zalloc must return Z_NULL if there is not enough memory for the object.
+ zalloc must return Z_NULL if there is not enough memory for the object.
If zlib is used in a multi-threaded application, zalloc and zfree must be
thread safe.
- On 16-bit systems, the functions zalloc and zfree must be able to allocate
- exactly 65536 bytes, but will not be required to allocate more than this
- if the symbol MAXSEG_64K is defined (see zconf.h). WARNING: On MSDOS,
- pointers returned by zalloc for objects of exactly 65536 bytes *must*
- have their offset normalized to zero. The default allocation function
- provided by this library ensures this (see zutil.c). To reduce memory
- requirements and avoid any allocation of 64K objects, at the expense of
- compression ratio, compile the library with -DMAX_WBITS=14 (see zconf.h).
+ On 16-bit systems, the functions zalloc and zfree must be able to allocate
+ exactly 65536 bytes, but will not be required to allocate more than this if
+ the symbol MAXSEG_64K is defined (see zconf.h). WARNING: On MSDOS, pointers
+ returned by zalloc for objects of exactly 65536 bytes *must* have their
+ offset normalized to zero. The default allocation function provided by this
+ library ensures this (see zutil.c). To reduce memory requirements and avoid
+ any allocation of 64K objects, at the expense of compression ratio, compile
+ the library with -DMAX_WBITS=14 (see zconf.h).
- The fields total_in and total_out can be used for statistics or
- progress reports. After compression, total_in holds the total size of
- the uncompressed data and may be saved for use in the decompressor
- (particularly if the decompressor wants to decompress everything in
- a single step).
+ The fields total_in and total_out can be used for statistics or progress
+ reports. After compression, total_in holds the total size of the
+ uncompressed data and may be saved for use in the decompressor (particularly
+ if the decompressor wants to decompress everything in a single step).
*/
/* constants */
#define Z_NO_FLUSH 0
-#define Z_PARTIAL_FLUSH 1 /* will be removed, use Z_SYNC_FLUSH instead */
+#define Z_PARTIAL_FLUSH 1
#define Z_SYNC_FLUSH 2
#define Z_FULL_FLUSH 3
#define Z_FINISH 4
#define Z_BLOCK 5
+#define Z_TREES 6
/* Allowed flush values; see deflate() and inflate() below for details */
#define Z_OK 0
@@ -176,8 +179,8 @@
#define Z_MEM_ERROR (-4)
#define Z_BUF_ERROR (-5)
#define Z_VERSION_ERROR (-6)
-/* Return codes for the compression/decompression functions. Negative
- * values are errors, positive values are used for special but normal events.
+/* Return codes for the compression/decompression functions. Negative values
+ * are errors, positive values are used for special but normal events.
*/
#define Z_NO_COMPRESSION 0
@@ -207,119 +210,140 @@
#define zlib_version zlibVersion()
/* for compatibility with versions < 1.0.2 */
+
/* basic functions */
ZEXTERN const char * ZEXPORT zlibVersion OF((void));
/* The application can compare zlibVersion and ZLIB_VERSION for consistency.
- If the first character differs, the library code actually used is
- not compatible with the zlib.h header file used by the application.
- This check is automatically made by deflateInit and inflateInit.
+ If the first character differs, the library code actually used is not
+ compatible with the zlib.h header file used by the application. This check
+ is automatically made by deflateInit and inflateInit.
*/
/*
ZEXTERN int ZEXPORT deflateInit OF((z_streamp strm, int level));
- Initializes the internal stream state for compression. The fields
- zalloc, zfree and opaque must be initialized before by the caller.
- If zalloc and zfree are set to Z_NULL, deflateInit updates them to
- use default allocation functions.
+ Initializes the internal stream state for compression. The fields
+ zalloc, zfree and opaque must be initialized before by the caller. If
+ zalloc and zfree are set to Z_NULL, deflateInit updates them to use default
+ allocation functions.
The compression level must be Z_DEFAULT_COMPRESSION, or between 0 and 9:
- 1 gives best speed, 9 gives best compression, 0 gives no compression at
- all (the input data is simply copied a block at a time).
- Z_DEFAULT_COMPRESSION requests a default compromise between speed and
- compression (currently equivalent to level 6).
+ 1 gives best speed, 9 gives best compression, 0 gives no compression at all
+ (the input data is simply copied a block at a time). Z_DEFAULT_COMPRESSION
+ requests a default compromise between speed and compression (currently
+ equivalent to level 6).
- deflateInit returns Z_OK if success, Z_MEM_ERROR if there was not
- enough memory, Z_STREAM_ERROR if level is not a valid compression level,
+ deflateInit returns Z_OK if success, Z_MEM_ERROR if there was not enough
+ memory, Z_STREAM_ERROR if level is not a valid compression level, or
Z_VERSION_ERROR if the zlib library version (zlib_version) is incompatible
- with the version assumed by the caller (ZLIB_VERSION).
- msg is set to null if there is no error message. deflateInit does not
- perform any compression: this will be done by deflate().
+ with the version assumed by the caller (ZLIB_VERSION). msg is set to null
+ if there is no error message. deflateInit does not perform any compression:
+ this will be done by deflate().
*/
ZEXTERN int ZEXPORT deflate OF((z_streamp strm, int flush));
/*
deflate compresses as much data as possible, and stops when the input
- buffer becomes empty or the output buffer becomes full. It may introduce some
- output latency (reading input without producing any output) except when
+ buffer becomes empty or the output buffer becomes full. It may introduce
+ some output latency (reading input without producing any output) except when
forced to flush.
- The detailed semantics are as follows. deflate performs one or both of the
+ The detailed semantics are as follows. deflate performs one or both of the
following actions:
- Compress more input starting at next_in and update next_in and avail_in
- accordingly. If not all input can be processed (because there is not
+ accordingly. If not all input can be processed (because there is not
enough room in the output buffer), next_in and avail_in are updated and
processing will resume at this point for the next call of deflate().
- Provide more output starting at next_out and update next_out and avail_out
- accordingly. This action is forced if the parameter flush is non zero.
+ accordingly. This action is forced if the parameter flush is non zero.
Forcing flush frequently degrades the compression ratio, so this parameter
- should be set only when necessary (in interactive applications).
- Some output may be provided even if flush is not set.
+ should be set only when necessary (in interactive applications). Some
+ output may be provided even if flush is not set.
- Before the call of deflate(), the application should ensure that at least
- one of the actions is possible, by providing more input and/or consuming
- more output, and updating avail_in or avail_out accordingly; avail_out
- should never be zero before the call. The application can consume the
- compressed output when it wants, for example when the output buffer is full
- (avail_out == 0), or after each call of deflate(). If deflate returns Z_OK
- and with zero avail_out, it must be called again after making room in the
- output buffer because there might be more output pending.
+ Before the call of deflate(), the application should ensure that at least
+ one of the actions is possible, by providing more input and/or consuming more
+ output, and updating avail_in or avail_out accordingly; avail_out should
+ never be zero before the call. The application can consume the compressed
+ output when it wants, for example when the output buffer is full (avail_out
+ == 0), or after each call of deflate(). If deflate returns Z_OK and with
+ zero avail_out, it must be called again after making room in the output
+ buffer because there might be more output pending.
Normally the parameter flush is set to Z_NO_FLUSH, which allows deflate to
- decide how much data to accumualte before producing output, in order to
+ decide how much data to accumulate before producing output, in order to
maximize compression.
If the parameter flush is set to Z_SYNC_FLUSH, all pending output is
flushed to the output buffer and the output is aligned on a byte boundary, so
- that the decompressor can get all input data available so far. (In particular
- avail_in is zero after the call if enough output space has been provided
- before the call.) Flushing may degrade compression for some compression
- algorithms and so it should be used only when necessary.
+ that the decompressor can get all input data available so far. (In
+ particular avail_in is zero after the call if enough output space has been
+ provided before the call.) Flushing may degrade compression for some
+ compression algorithms and so it should be used only when necessary. This
+ completes the current deflate block and follows it with an empty stored block
+ that is three bits plus filler bits to the next byte, followed by four bytes
+ (00 00 ff ff).
+
+ If flush is set to Z_PARTIAL_FLUSH, all pending output is flushed to the
+ output buffer, but the output is not aligned to a byte boundary. All of the
+ input data so far will be available to the decompressor, as for Z_SYNC_FLUSH.
+ This completes the current deflate block and follows it with an empty fixed
+ codes block that is 10 bits long. This assures that enough bytes are output
+ in order for the decompressor to finish the block before the empty fixed code
+ block.
+
+ If flush is set to Z_BLOCK, a deflate block is completed and emitted, as
+ for Z_SYNC_FLUSH, but the output is not aligned on a byte boundary, and up to
+ seven bits of the current block are held to be written as the next byte after
+ the next deflate block is completed. In this case, the decompressor may not
+ be provided enough bits at this point in order to complete decompression of
+ the data provided so far to the compressor. It may need to wait for the next
+ block to be emitted. This is for advanced applications that need to control
+ the emission of deflate blocks.
If flush is set to Z_FULL_FLUSH, all output is flushed as with
Z_SYNC_FLUSH, and the compression state is reset so that decompression can
restart from this point if previous compressed data has been damaged or if
- random access is desired. Using Z_FULL_FLUSH too often can seriously degrade
+ random access is desired. Using Z_FULL_FLUSH too often can seriously degrade
compression.
If deflate returns with avail_out == 0, this function must be called again
with the same value of the flush parameter and more output space (updated
avail_out), until the flush is complete (deflate returns with non-zero
- avail_out). In the case of a Z_FULL_FLUSH or Z_SYNC_FLUSH, make sure that
+ avail_out). In the case of a Z_FULL_FLUSH or Z_SYNC_FLUSH, make sure that
avail_out is greater than six to avoid repeated flush markers due to
avail_out == 0 on return.
If the parameter flush is set to Z_FINISH, pending input is processed,
- pending output is flushed and deflate returns with Z_STREAM_END if there
- was enough output space; if deflate returns with Z_OK, this function must be
+ pending output is flushed and deflate returns with Z_STREAM_END if there was
+ enough output space; if deflate returns with Z_OK, this function must be
called again with Z_FINISH and more output space (updated avail_out) but no
- more input data, until it returns with Z_STREAM_END or an error. After
- deflate has returned Z_STREAM_END, the only possible operations on the
- stream are deflateReset or deflateEnd.
+ more input data, until it returns with Z_STREAM_END or an error. After
+ deflate has returned Z_STREAM_END, the only possible operations on the stream
+ are deflateReset or deflateEnd.
Z_FINISH can be used immediately after deflateInit if all the compression
- is to be done in a single step. In this case, avail_out must be at least
- the value returned by deflateBound (see below). If deflate does not return
+ is to be done in a single step. In this case, avail_out must be at least the
+ value returned by deflateBound (see below). If deflate does not return
Z_STREAM_END, then it must be called again as described above.
deflate() sets strm->adler to the adler32 checksum of all input read
so far (that is, total_in bytes).
deflate() may update strm->data_type if it can make a good guess about
- the input data type (Z_BINARY or Z_TEXT). In doubt, the data is considered
- binary. This field is only for information purposes and does not affect
- the compression algorithm in any manner.
+ the input data type (Z_BINARY or Z_TEXT). In doubt, the data is considered
+ binary. This field is only for information purposes and does not affect the
+ compression algorithm in any manner.
deflate() returns Z_OK if some progress has been made (more input
processed or more output produced), Z_STREAM_END if all input has been
consumed and all output has been produced (only when flush is set to
Z_FINISH), Z_STREAM_ERROR if the stream state was inconsistent (for example
- if next_in or next_out was NULL), Z_BUF_ERROR if no progress is possible
- (for example avail_in or avail_out was zero). Note that Z_BUF_ERROR is not
+ if next_in or next_out was Z_NULL), Z_BUF_ERROR if no progress is possible
+ (for example avail_in or avail_out was zero). Note that Z_BUF_ERROR is not
fatal, and deflate() can be called again with more input and more output
space to continue compressing.
*/
@@ -328,13 +352,13 @@
ZEXTERN int ZEXPORT deflateEnd OF((z_streamp strm));
/*
All dynamically allocated data structures for this stream are freed.
- This function discards any unprocessed input and does not flush any
- pending output.
+ This function discards any unprocessed input and does not flush any pending
+ output.
deflateEnd returns Z_OK if success, Z_STREAM_ERROR if the
stream state was inconsistent, Z_DATA_ERROR if the stream was freed
- prematurely (some input or output was discarded). In the error case,
- msg may be set but then points to a static string (which must not be
+ prematurely (some input or output was discarded). In the error case, msg
+ may be set but then points to a static string (which must not be
deallocated).
*/
@@ -342,10 +366,10 @@
/*
ZEXTERN int ZEXPORT inflateInit OF((z_streamp strm));
- Initializes the internal stream state for decompression. The fields
+ Initializes the internal stream state for decompression. The fields
next_in, avail_in, zalloc, zfree and opaque must be initialized before by
- the caller. If next_in is not Z_NULL and avail_in is large enough (the exact
- value depends on the compression method), inflateInit determines the
+ the caller. If next_in is not Z_NULL and avail_in is large enough (the
+ exact value depends on the compression method), inflateInit determines the
compression method from the zlib header and allocates all data structures
accordingly; otherwise the allocation will be deferred to the first call of
inflate. If zalloc and zfree are set to Z_NULL, inflateInit updates them to
@@ -353,95 +377,108 @@
inflateInit returns Z_OK if success, Z_MEM_ERROR if there was not enough
memory, Z_VERSION_ERROR if the zlib library version is incompatible with the
- version assumed by the caller. msg is set to null if there is no error
- message. inflateInit does not perform any decompression apart from reading
- the zlib header if present: this will be done by inflate(). (So next_in and
- avail_in may be modified, but next_out and avail_out are unchanged.)
+ version assumed by the caller, or Z_STREAM_ERROR if the parameters are
+ invalid, such as a null pointer to the structure. msg is set to null if
+ there is no error message. inflateInit does not perform any decompression
+ apart from possibly reading the zlib header if present: actual decompression
+ will be done by inflate(). (So next_in and avail_in may be modified, but
+ next_out and avail_out are unused and unchanged.) The current implementation
+ of inflateInit() does not process any header information -- that is deferred
+ until inflate() is called.
*/
ZEXTERN int ZEXPORT inflate OF((z_streamp strm, int flush));
/*
inflate decompresses as much data as possible, and stops when the input
- buffer becomes empty or the output buffer becomes full. It may introduce
+ buffer becomes empty or the output buffer becomes full. It may introduce
some output latency (reading input without producing any output) except when
forced to flush.
- The detailed semantics are as follows. inflate performs one or both of the
+ The detailed semantics are as follows. inflate performs one or both of the
following actions:
- Decompress more input starting at next_in and update next_in and avail_in
- accordingly. If not all input can be processed (because there is not
- enough room in the output buffer), next_in is updated and processing
- will resume at this point for the next call of inflate().
+ accordingly. If not all input can be processed (because there is not
+ enough room in the output buffer), next_in is updated and processing will
+ resume at this point for the next call of inflate().
- Provide more output starting at next_out and update next_out and avail_out
- accordingly. inflate() provides as much output as possible, until there
- is no more input data or no more space in the output buffer (see below
- about the flush parameter).
+ accordingly. inflate() provides as much output as possible, until there is
+ no more input data or no more space in the output buffer (see below about
+ the flush parameter).
- Before the call of inflate(), the application should ensure that at least
- one of the actions is possible, by providing more input and/or consuming
- more output, and updating the next_* and avail_* values accordingly.
- The application can consume the uncompressed output when it wants, for
- example when the output buffer is full (avail_out == 0), or after each
- call of inflate(). If inflate returns Z_OK and with zero avail_out, it
- must be called again after making room in the output buffer because there
- might be more output pending.
+ Before the call of inflate(), the application should ensure that at least
+ one of the actions is possible, by providing more input and/or consuming more
+ output, and updating the next_* and avail_* values accordingly. The
+ application can consume the uncompressed output when it wants, for example
+ when the output buffer is full (avail_out == 0), or after each call of
+ inflate(). If inflate returns Z_OK and with zero avail_out, it must be
+ called again after making room in the output buffer because there might be
+ more output pending.
- The flush parameter of inflate() can be Z_NO_FLUSH, Z_SYNC_FLUSH,
- Z_FINISH, or Z_BLOCK. Z_SYNC_FLUSH requests that inflate() flush as much
- output as possible to the output buffer. Z_BLOCK requests that inflate() stop
- if and when it gets to the next deflate block boundary. When decoding the
- zlib or gzip format, this will cause inflate() to return immediately after
- the header and before the first block. When doing a raw inflate, inflate()
- will go ahead and process the first block, and will return when it gets to
- the end of that block, or when it runs out of data.
+ The flush parameter of inflate() can be Z_NO_FLUSH, Z_SYNC_FLUSH, Z_FINISH,
+ Z_BLOCK, or Z_TREES. Z_SYNC_FLUSH requests that inflate() flush as much
+ output as possible to the output buffer. Z_BLOCK requests that inflate()
+ stop if and when it gets to the next deflate block boundary. When decoding
+ the zlib or gzip format, this will cause inflate() to return immediately
+ after the header and before the first block. When doing a raw inflate,
+ inflate() will go ahead and process the first block, and will return when it
+ gets to the end of that block, or when it runs out of data.
The Z_BLOCK option assists in appending to or combining deflate streams.
Also to assist in this, on return inflate() will set strm->data_type to the
- number of unused bits in the last byte taken from strm->next_in, plus 64
- if inflate() is currently decoding the last block in the deflate stream,
- plus 128 if inflate() returned immediately after decoding an end-of-block
- code or decoding the complete header up to just before the first byte of the
- deflate stream. The end-of-block will not be indicated until all of the
- uncompressed data from that block has been written to strm->next_out. The
- number of unused bits may in general be greater than seven, except when
- bit 7 of data_type is set, in which case the number of unused bits will be
- less than eight.
+ number of unused bits in the last byte taken from strm->next_in, plus 64 if
+ inflate() is currently decoding the last block in the deflate stream, plus
+ 128 if inflate() returned immediately after decoding an end-of-block code or
+ decoding the complete header up to just before the first byte of the deflate
+ stream. The end-of-block will not be indicated until all of the uncompressed
+ data from that block has been written to strm->next_out. The number of
+ unused bits may in general be greater than seven, except when bit 7 of
+ data_type is set, in which case the number of unused bits will be less than
+ eight. data_type is set as noted here every time inflate() returns for all
+ flush options, and so can be used to determine the amount of currently
+ consumed input in bits.
+
+ The Z_TREES option behaves as Z_BLOCK does, but it also returns when the
+ end of each deflate block header is reached, before any actual data in that
+ block is decoded. This allows the caller to determine the length of the
+ deflate block header for later use in random access within a deflate block.
+ 256 is added to the value of strm->data_type when inflate() returns
+ immediately after reaching the end of the deflate block header.
inflate() should normally be called until it returns Z_STREAM_END or an
- error. However if all decompression is to be performed in a single step
- (a single call of inflate), the parameter flush should be set to
- Z_FINISH. In this case all pending input is processed and all pending
- output is flushed; avail_out must be large enough to hold all the
- uncompressed data. (The size of the uncompressed data may have been saved
- by the compressor for this purpose.) The next operation on this stream must
- be inflateEnd to deallocate the decompression state. The use of Z_FINISH
- is never required, but can be used to inform inflate that a faster approach
- may be used for the single inflate() call.
+ error. However if all decompression is to be performed in a single step (a
+ single call of inflate), the parameter flush should be set to Z_FINISH. In
+ this case all pending input is processed and all pending output is flushed;
+ avail_out must be large enough to hold all the uncompressed data. (The size
+ of the uncompressed data may have been saved by the compressor for this
+ purpose.) The next operation on this stream must be inflateEnd to deallocate
+ the decompression state. The use of Z_FINISH is never required, but can be
+ used to inform inflate that a faster approach may be used for the single
+ inflate() call.
In this implementation, inflate() always flushes as much output as
possible to the output buffer, and always uses the faster approach on the
- first call. So the only effect of the flush parameter in this implementation
+ first call. So the only effect of the flush parameter in this implementation
is on the return value of inflate(), as noted below, or when it returns early
- because Z_BLOCK is used.
+ because Z_BLOCK or Z_TREES is used.
If a preset dictionary is needed after this call (see inflateSetDictionary
below), inflate sets strm->adler to the adler32 checksum of the dictionary
chosen by the compressor and returns Z_NEED_DICT; otherwise it sets
strm->adler to the adler32 checksum of all output produced so far (that is,
total_out bytes) and returns Z_OK, Z_STREAM_END or an error code as described
- below. At the end of the stream, inflate() checks that its computed adler32
+ below. At the end of the stream, inflate() checks that its computed adler32
checksum is equal to that saved by the compressor and returns Z_STREAM_END
only if the checksum is correct.
- inflate() will decompress and check either zlib-wrapped or gzip-wrapped
- deflate data. The header type is detected automatically. Any information
- contained in the gzip header is not retained, so applications that need that
- information should instead use raw inflate, see inflateInit2() below, or
- inflateBack() and perform their own processing of the gzip header and
- trailer.
+ inflate() can decompress and check either zlib-wrapped or gzip-wrapped
+ deflate data. The header type is detected automatically, if requested when
+ initializing with inflateInit2(). Any information contained in the gzip
+ header is not retained, so applications that need that information should
+ instead use raw inflate, see inflateInit2() below, or inflateBack() and
+ perform their own processing of the gzip header and trailer.
inflate() returns Z_OK if some progress has been made (more input processed
or more output produced), Z_STREAM_END if the end of the compressed data has
@@ -449,27 +486,28 @@
preset dictionary is needed at this point, Z_DATA_ERROR if the input data was
corrupted (input stream not conforming to the zlib format or incorrect check
value), Z_STREAM_ERROR if the stream structure was inconsistent (for example
- if next_in or next_out was NULL), Z_MEM_ERROR if there was not enough memory,
+ next_in or next_out was Z_NULL), Z_MEM_ERROR if there was not enough memory,
Z_BUF_ERROR if no progress is possible or if there was not enough room in the
- output buffer when Z_FINISH is used. Note that Z_BUF_ERROR is not fatal, and
+ output buffer when Z_FINISH is used. Note that Z_BUF_ERROR is not fatal, and
inflate() can be called again with more input and more output space to
- continue decompressing. If Z_DATA_ERROR is returned, the application may then
- call inflateSync() to look for a good compression block if a partial recovery
- of the data is desired.
+ continue decompressing. If Z_DATA_ERROR is returned, the application may
+ then call inflateSync() to look for a good compression block if a partial
+ recovery of the data is desired.
*/
ZEXTERN int ZEXPORT inflateEnd OF((z_streamp strm));
/*
All dynamically allocated data structures for this stream are freed.
- This function discards any unprocessed input and does not flush any
- pending output.
+ This function discards any unprocessed input and does not flush any pending
+ output.
inflateEnd returns Z_OK if success, Z_STREAM_ERROR if the stream state
- was inconsistent. In the error case, msg may be set but then points to a
+ was inconsistent. In the error case, msg may be set but then points to a
static string (which must not be deallocated).
*/
+
/* Advanced functions */
/*
@@ -484,55 +522,57 @@
int memLevel,
int strategy));
- This is another version of deflateInit with more compression options. The
- fields next_in, zalloc, zfree and opaque must be initialized before by
- the caller.
+ This is another version of deflateInit with more compression options. The
+ fields next_in, zalloc, zfree and opaque must be initialized before by the
+ caller.
- The method parameter is the compression method. It must be Z_DEFLATED in
+ The method parameter is the compression method. It must be Z_DEFLATED in
this version of the library.
The windowBits parameter is the base two logarithm of the window size
- (the size of the history buffer). It should be in the range 8..15 for this
- version of the library. Larger values of this parameter result in better
- compression at the expense of memory usage. The default value is 15 if
+ (the size of the history buffer). It should be in the range 8..15 for this
+ version of the library. Larger values of this parameter result in better
+ compression at the expense of memory usage. The default value is 15 if
deflateInit is used instead.
- windowBits can also be -8..-15 for raw deflate. In this case, -windowBits
- determines the window size. deflate() will then generate raw deflate data
+ windowBits can also be -8..-15 for raw deflate. In this case, -windowBits
+ determines the window size. deflate() will then generate raw deflate data
with no zlib header or trailer, and will not compute an adler32 check value.
- windowBits can also be greater than 15 for optional gzip encoding. Add
+ windowBits can also be greater than 15 for optional gzip encoding. Add
16 to windowBits to write a simple gzip header and trailer around the
- compressed data instead of a zlib wrapper. The gzip header will have no
- file name, no extra data, no comment, no modification time (set to zero),
- no header crc, and the operating system will be set to 255 (unknown). If a
+ compressed data instead of a zlib wrapper. The gzip header will have no
+ file name, no extra data, no comment, no modification time (set to zero), no
+ header crc, and the operating system will be set to 255 (unknown). If a
gzip stream is being written, strm->adler is a crc32 instead of an adler32.
The memLevel parameter specifies how much memory should be allocated
- for the internal compression state. memLevel=1 uses minimum memory but
- is slow and reduces compression ratio; memLevel=9 uses maximum memory
- for optimal speed. The default value is 8. See zconf.h for total memory
- usage as a function of windowBits and memLevel.
+ for the internal compression state. memLevel=1 uses minimum memory but is
+ slow and reduces compression ratio; memLevel=9 uses maximum memory for
+ optimal speed. The default value is 8. See zconf.h for total memory usage
+ as a function of windowBits and memLevel.
- The strategy parameter is used to tune the compression algorithm. Use the
+ The strategy parameter is used to tune the compression algorithm. Use the
value Z_DEFAULT_STRATEGY for normal data, Z_FILTERED for data produced by a
filter (or predictor), Z_HUFFMAN_ONLY to force Huffman encoding only (no
string match), or Z_RLE to limit match distances to one (run-length
- encoding). Filtered data consists mostly of small values with a somewhat
- random distribution. In this case, the compression algorithm is tuned to
- compress them better. The effect of Z_FILTERED is to force more Huffman
+ encoding). Filtered data consists mostly of small values with a somewhat
+ random distribution. In this case, the compression algorithm is tuned to
+ compress them better. The effect of Z_FILTERED is to force more Huffman
coding and less string matching; it is somewhat intermediate between
- Z_DEFAULT and Z_HUFFMAN_ONLY. Z_RLE is designed to be almost as fast as
- Z_HUFFMAN_ONLY, but give better compression for PNG image data. The strategy
- parameter only affects the compression ratio but not the correctness of the
- compressed output even if it is not set appropriately. Z_FIXED prevents the
- use of dynamic Huffman codes, allowing for a simpler decoder for special
- applications.
+ Z_DEFAULT_STRATEGY and Z_HUFFMAN_ONLY. Z_RLE is designed to be almost as
+ fast as Z_HUFFMAN_ONLY, but give better compression for PNG image data. The
+ strategy parameter only affects the compression ratio but not the
+ correctness of the compressed output even if it is not set appropriately.
+ Z_FIXED prevents the use of dynamic Huffman codes, allowing for a simpler
+ decoder for special applications.
- deflateInit2 returns Z_OK if success, Z_MEM_ERROR if there was not enough
- memory, Z_STREAM_ERROR if a parameter is invalid (such as an invalid
- method). msg is set to null if there is no error message. deflateInit2 does
- not perform any compression: this will be done by deflate().
+ deflateInit2 returns Z_OK if success, Z_MEM_ERROR if there was not enough
+ memory, Z_STREAM_ERROR if any parameter is invalid (such as an invalid
+ method), or Z_VERSION_ERROR if the zlib library version (zlib_version) is
+ incompatible with the version assumed by the caller (ZLIB_VERSION). msg is
+ set to null if there is no error message. deflateInit2 does not perform any
+ compression: this will be done by deflate().
*/
ZEXTERN int ZEXPORT deflateSetDictionary OF((z_streamp strm,
@@ -540,37 +580,37 @@
uInt dictLength));
/*
Initializes the compression dictionary from the given byte sequence
- without producing any compressed output. This function must be called
- immediately after deflateInit, deflateInit2 or deflateReset, before any
- call of deflate. The compressor and decompressor must use exactly the same
+ without producing any compressed output. This function must be called
+ immediately after deflateInit, deflateInit2 or deflateReset, before any call
+ of deflate. The compressor and decompressor must use exactly the same
dictionary (see inflateSetDictionary).
The dictionary should consist of strings (byte sequences) that are likely
to be encountered later in the data to be compressed, with the most commonly
- used strings preferably put towards the end of the dictionary. Using a
+ used strings preferably put towards the end of the dictionary. Using a
dictionary is most useful when the data to be compressed is short and can be
predicted with good accuracy; the data can then be compressed better than
with the default empty dictionary.
Depending on the size of the compression data structures selected by
deflateInit or deflateInit2, a part of the dictionary may in effect be
- discarded, for example if the dictionary is larger than the window size in
- deflate or deflate2. Thus the strings most likely to be useful should be
- put at the end of the dictionary, not at the front. In addition, the
- current implementation of deflate will use at most the window size minus
- 262 bytes of the provided dictionary.
+ discarded, for example if the dictionary is larger than the window size
+ provided in deflateInit or deflateInit2. Thus the strings most likely to be
+ useful should be put at the end of the dictionary, not at the front. In
+ addition, the current implementation of deflate will use at most the window
+ size minus 262 bytes of the provided dictionary.
Upon return of this function, strm->adler is set to the adler32 value
of the dictionary; the decompressor may later use this value to determine
- which dictionary has been used by the compressor. (The adler32 value
+ which dictionary has been used by the compressor. (The adler32 value
applies to the whole dictionary even if only a subset of the dictionary is
actually used by the compressor.) If a raw deflate was requested, then the
adler32 value is not computed and strm->adler is not set.
deflateSetDictionary returns Z_OK if success, or Z_STREAM_ERROR if a
- parameter is invalid (such as NULL dictionary) or the stream state is
+ parameter is invalid (e.g. dictionary being Z_NULL) or the stream state is
inconsistent (for example if deflate has already been called for this stream
- or if the compression method is bsort). deflateSetDictionary does not
+ or if the compression method is bsort). deflateSetDictionary does not
perform any compression: this will be done by deflate().
*/
@@ -581,26 +621,26 @@
This function can be useful when several compression strategies will be
tried, for example when there are several ways of pre-processing the input
- data with a filter. The streams that will be discarded should then be freed
+ data with a filter. The streams that will be discarded should then be freed
by calling deflateEnd. Note that deflateCopy duplicates the internal
- compression state which can be quite large, so this strategy is slow and
- can consume lots of memory.
+ compression state which can be quite large, so this strategy is slow and can
+ consume lots of memory.
deflateCopy returns Z_OK if success, Z_MEM_ERROR if there was not
enough memory, Z_STREAM_ERROR if the source stream state was inconsistent
- (such as zalloc being NULL). msg is left unchanged in both source and
+ (such as zalloc being Z_NULL). msg is left unchanged in both source and
destination.
*/
ZEXTERN int ZEXPORT deflateReset OF((z_streamp strm));
/*
This function is equivalent to deflateEnd followed by deflateInit,
- but does not free and reallocate all the internal compression state.
- The stream will keep the same compression level and any other attributes
- that may have been set by deflateInit2.
+ but does not free and reallocate all the internal compression state. The
+ stream will keep the same compression level and any other attributes that
+ may have been set by deflateInit2.
- deflateReset returns Z_OK if success, or Z_STREAM_ERROR if the source
- stream state was inconsistent (such as zalloc or state being NULL).
+ deflateReset returns Z_OK if success, or Z_STREAM_ERROR if the source
+ stream state was inconsistent (such as zalloc or state being Z_NULL).
*/
ZEXTERN int ZEXPORT deflateParams OF((z_streamp strm,
@@ -610,18 +650,18 @@
Dynamically update the compression level and compression strategy. The
interpretation of level and strategy is as in deflateInit2. This can be
used to switch between compression and straight copy of the input data, or
- to switch to a different kind of input data requiring a different
- strategy. If the compression level is changed, the input available so far
- is compressed with the old level (and may be flushed); the new level will
- take effect only at the next call of deflate().
+ to switch to a different kind of input data requiring a different strategy.
+ If the compression level is changed, the input available so far is
+ compressed with the old level (and may be flushed); the new level will take
+ effect only at the next call of deflate().
Before the call of deflateParams, the stream state must be set as for
- a call of deflate(), since the currently available input may have to
- be compressed and flushed. In particular, strm->avail_out must be non-zero.
+ a call of deflate(), since the currently available input may have to be
+ compressed and flushed. In particular, strm->avail_out must be non-zero.
deflateParams returns Z_OK if success, Z_STREAM_ERROR if the source
- stream state was inconsistent or if a parameter was invalid, Z_BUF_ERROR
- if strm->avail_out was zero.
+ stream state was inconsistent or if a parameter was invalid, Z_BUF_ERROR if
+ strm->avail_out was zero.
*/
ZEXTERN int ZEXPORT deflateTune OF((z_streamp strm,
@@ -645,9 +685,10 @@
uLong sourceLen));
/*
deflateBound() returns an upper bound on the compressed size after
- deflation of sourceLen bytes. It must be called after deflateInit()
- or deflateInit2(). This would be used to allocate an output buffer
- for deflation in a single pass, and so would be called before deflate().
+ deflation of sourceLen bytes. It must be called after deflateInit() or
+ deflateInit2(), and after deflateSetHeader(), if used. This would be used
+ to allocate an output buffer for deflation in a single pass, and so would be
+ called before deflate().
*/
ZEXTERN int ZEXPORT deflatePrime OF((z_streamp strm,
@@ -655,21 +696,21 @@
int value));
/*
deflatePrime() inserts bits in the deflate output stream. The intent
- is that this function is used to start off the deflate output with the
- bits leftover from a previous deflate stream when appending to it. As such,
- this function can only be used for raw deflate, and must be used before the
- first deflate() call after a deflateInit2() or deflateReset(). bits must be
- less than or equal to 16, and that many of the least significant bits of
- value will be inserted in the output.
+ is that this function is used to start off the deflate output with the bits
+ leftover from a previous deflate stream when appending to it. As such, this
+ function can only be used for raw deflate, and must be used before the first
+ deflate() call after a deflateInit2() or deflateReset(). bits must be less
+ than or equal to 16, and that many of the least significant bits of value
+ will be inserted in the output.
- deflatePrime returns Z_OK if success, or Z_STREAM_ERROR if the source
+ deflatePrime returns Z_OK if success, or Z_STREAM_ERROR if the source
stream state was inconsistent.
*/
ZEXTERN int ZEXPORT deflateSetHeader OF((z_streamp strm,
gz_headerp head));
/*
- deflateSetHeader() provides gzip header information for when a gzip
+ deflateSetHeader() provides gzip header information for when a gzip
stream is requested by deflateInit2(). deflateSetHeader() may be called
after deflateInit2() or deflateReset() and before the first call of
deflate(). The text, time, os, extra field, name, and comment information
@@ -682,11 +723,11 @@
1.3.x) do not support header crc's, and will report that it is a "multi-part
gzip file" and give up.
- If deflateSetHeader is not used, the default gzip header has text false,
+ If deflateSetHeader is not used, the default gzip header has text false,
the time set to zero, and os set to 255, with no extra, name, or comment
fields. The gzip header is returned to the default state by deflateReset().
- deflateSetHeader returns Z_OK if success, or Z_STREAM_ERROR if the source
+ deflateSetHeader returns Z_OK if success, or Z_STREAM_ERROR if the source
stream state was inconsistent.
*/
@@ -694,43 +735,50 @@
ZEXTERN int ZEXPORT inflateInit2 OF((z_streamp strm,
int windowBits));
- This is another version of inflateInit with an extra parameter. The
+ This is another version of inflateInit with an extra parameter. The
fields next_in, avail_in, zalloc, zfree and opaque must be initialized
before by the caller.
The windowBits parameter is the base two logarithm of the maximum window
size (the size of the history buffer). It should be in the range 8..15 for
- this version of the library. The default value is 15 if inflateInit is used
- instead. windowBits must be greater than or equal to the windowBits value
+ this version of the library. The default value is 15 if inflateInit is used
+ instead. windowBits must be greater than or equal to the windowBits value
provided to deflateInit2() while compressing, or it must be equal to 15 if
- deflateInit2() was not used. If a compressed stream with a larger window
+ deflateInit2() was not used. If a compressed stream with a larger window
size is given as input, inflate() will return with the error code
Z_DATA_ERROR instead of trying to allocate a larger window.
- windowBits can also be -8..-15 for raw inflate. In this case, -windowBits
- determines the window size. inflate() will then process raw deflate data,
+ windowBits can also be zero to request that inflate use the window size in
+ the zlib header of the compressed stream.
+
+ windowBits can also be -8..-15 for raw inflate. In this case, -windowBits
+ determines the window size. inflate() will then process raw deflate data,
not looking for a zlib or gzip header, not generating a check value, and not
- looking for any check values for comparison at the end of the stream. This
+ looking for any check values for comparison at the end of the stream. This
is for use with other formats that use the deflate compressed data format
- such as zip. Those formats provide their own check values. If a custom
+ such as zip. Those formats provide their own check values. If a custom
format is developed using the raw deflate format for compressed data, it is
recommended that a check value such as an adler32 or a crc32 be applied to
the uncompressed data as is done in the zlib, gzip, and zip formats. For
- most applications, the zlib format should be used as is. Note that comments
+ most applications, the zlib format should be used as is. Note that comments
above on the use in deflateInit2() applies to the magnitude of windowBits.
- windowBits can also be greater than 15 for optional gzip decoding. Add
+ windowBits can also be greater than 15 for optional gzip decoding. Add
32 to windowBits to enable zlib and gzip decoding with automatic header
detection, or add 16 to decode only the gzip format (the zlib format will
- return a Z_DATA_ERROR). If a gzip stream is being decoded, strm->adler is
- a crc32 instead of an adler32.
+ return a Z_DATA_ERROR). If a gzip stream is being decoded, strm->adler is a
+ crc32 instead of an adler32.
inflateInit2 returns Z_OK if success, Z_MEM_ERROR if there was not enough
- memory, Z_STREAM_ERROR if a parameter is invalid (such as a null strm). msg
- is set to null if there is no error message. inflateInit2 does not perform
- any decompression apart from reading the zlib header if present: this will
- be done by inflate(). (So next_in and avail_in may be modified, but next_out
- and avail_out are unchanged.)
+ memory, Z_VERSION_ERROR if the zlib library version is incompatible with the
+ version assumed by the caller, or Z_STREAM_ERROR if the parameters are
+ invalid, such as a null pointer to the structure. msg is set to null if
+ there is no error message. inflateInit2 does not perform any decompression
+ apart from possibly reading the zlib header if present: actual decompression
+ will be done by inflate(). (So next_in and avail_in may be modified, but
+ next_out and avail_out are unused and unchanged.) The current implementation
+ of inflateInit2() does not process any header information -- that is
+ deferred until inflate() is called.
*/
ZEXTERN int ZEXPORT inflateSetDictionary OF((z_streamp strm,
@@ -738,8 +786,8 @@
uInt dictLength));
/*
Initializes the decompression dictionary from the given uncompressed byte
- sequence. This function must be called immediately after a call of inflate,
- if that call returned Z_NEED_DICT. The dictionary chosen by the compressor
+ sequence. This function must be called immediately after a call of inflate,
+ if that call returned Z_NEED_DICT. The dictionary chosen by the compressor
can be determined from the adler32 value returned by that call of inflate.
The compressor and decompressor must use exactly the same dictionary (see
deflateSetDictionary). For raw inflate, this function can be called
@@ -748,26 +796,26 @@
dictionary that was used for compression is provided.
inflateSetDictionary returns Z_OK if success, Z_STREAM_ERROR if a
- parameter is invalid (such as NULL dictionary) or the stream state is
+ parameter is invalid (e.g. dictionary being Z_NULL) or the stream state is
inconsistent, Z_DATA_ERROR if the given dictionary doesn't match the
- expected one (incorrect adler32 value). inflateSetDictionary does not
+ expected one (incorrect adler32 value). inflateSetDictionary does not
perform any decompression: this will be done by subsequent calls of
inflate().
*/
ZEXTERN int ZEXPORT inflateSync OF((z_streamp strm));
/*
- Skips invalid compressed data until a full flush point (see above the
- description of deflate with Z_FULL_FLUSH) can be found, or until all
- available input is skipped. No output is provided.
+ Skips invalid compressed data until a full flush point (see above the
+ description of deflate with Z_FULL_FLUSH) can be found, or until all
+ available input is skipped. No output is provided.
- inflateSync returns Z_OK if a full flush point has been found, Z_BUF_ERROR
- if no more input was provided, Z_DATA_ERROR if no flush point has been found,
- or Z_STREAM_ERROR if the stream structure was inconsistent. In the success
- case, the application may save the current current value of total_in which
- indicates where valid compressed data was found. In the error case, the
- application may repeatedly call inflateSync, providing more input each time,
- until success or end of the input data.
+ inflateSync returns Z_OK if a full flush point has been found, Z_BUF_ERROR
+ if no more input was provided, Z_DATA_ERROR if no flush point has been
+ found, or Z_STREAM_ERROR if the stream structure was inconsistent. In the
+ success case, the application may save the current current value of total_in
+ which indicates where valid compressed data was found. In the error case,
+ the application may repeatedly call inflateSync, providing more input each
+ time, until success or end of the input data.
*/
ZEXTERN int ZEXPORT inflateCopy OF((z_streamp dest,
@@ -782,18 +830,30 @@
inflateCopy returns Z_OK if success, Z_MEM_ERROR if there was not
enough memory, Z_STREAM_ERROR if the source stream state was inconsistent
- (such as zalloc being NULL). msg is left unchanged in both source and
+ (such as zalloc being Z_NULL). msg is left unchanged in both source and
destination.
*/
ZEXTERN int ZEXPORT inflateReset OF((z_streamp strm));
/*
This function is equivalent to inflateEnd followed by inflateInit,
- but does not free and reallocate all the internal decompression state.
- The stream will keep attributes that may have been set by inflateInit2.
+ but does not free and reallocate all the internal decompression state. The
+ stream will keep attributes that may have been set by inflateInit2.
- inflateReset returns Z_OK if success, or Z_STREAM_ERROR if the source
- stream state was inconsistent (such as zalloc or state being NULL).
+ inflateReset returns Z_OK if success, or Z_STREAM_ERROR if the source
+ stream state was inconsistent (such as zalloc or state being Z_NULL).
+*/
+
+ZEXTERN int ZEXPORT inflateReset2 OF((z_streamp strm,
+ int windowBits));
+/*
+ This function is the same as inflateReset, but it also permits changing
+ the wrap and window size requests. The windowBits parameter is interpreted
+ the same as it is for inflateInit2.
+
+ inflateReset2 returns Z_OK if success, or Z_STREAM_ERROR if the source
+ stream state was inconsistent (such as zalloc or state being Z_NULL), or if
+ the windowBits parameter is invalid.
*/
ZEXTERN int ZEXPORT inflatePrime OF((z_streamp strm,
@@ -801,54 +861,87 @@
int value));
/*
This function inserts bits in the inflate input stream. The intent is
- that this function is used to start inflating at a bit position in the
- middle of a byte. The provided bits will be used before any bytes are used
- from next_in. This function should only be used with raw inflate, and
- should be used before the first inflate() call after inflateInit2() or
- inflateReset(). bits must be less than or equal to 16, and that many of the
- least significant bits of value will be inserted in the input.
+ that this function is used to start inflating at a bit position in the
+ middle of a byte. The provided bits will be used before any bytes are used
+ from next_in. This function should only be used with raw inflate, and
+ should be used before the first inflate() call after inflateInit2() or
+ inflateReset(). bits must be less than or equal to 16, and that many of the
+ least significant bits of value will be inserted in the input.
- inflatePrime returns Z_OK if success, or Z_STREAM_ERROR if the source
+ If bits is negative, then the input stream bit buffer is emptied. Then
+ inflatePrime() can be called again to put bits in the buffer. This is used
+ to clear out bits leftover after feeding inflate a block description prior
+ to feeding inflate codes.
+
+ inflatePrime returns Z_OK if success, or Z_STREAM_ERROR if the source
stream state was inconsistent.
*/
+ZEXTERN long ZEXPORT inflateMark OF((z_streamp strm));
+/*
+ This function returns two values, one in the lower 16 bits of the return
+ value, and the other in the remaining upper bits, obtained by shifting the
+ return value down 16 bits. If the upper value is -1 and the lower value is
+ zero, then inflate() is currently decoding information outside of a block.
+ If the upper value is -1 and the lower value is non-zero, then inflate is in
+ the middle of a stored block, with the lower value equaling the number of
+ bytes from the input remaining to copy. If the upper value is not -1, then
+ it is the number of bits back from the current bit position in the input of
+ the code (literal or length/distance pair) currently being processed. In
+ that case the lower value is the number of bytes already emitted for that
+ code.
+
+ A code is being processed if inflate is waiting for more input to complete
+ decoding of the code, or if it has completed decoding but is waiting for
+ more output space to write the literal or match data.
+
+ inflateMark() is used to mark locations in the input data for random
+ access, which may be at bit positions, and to note those cases where the
+ output of a code may span boundaries of random access blocks. The current
+ location in the input stream can be determined from avail_in and data_type
+ as noted in the description for the Z_BLOCK flush parameter for inflate.
+
+ inflateMark returns the value noted above or -1 << 16 if the provided
+ source stream state was inconsistent.
+*/
+
ZEXTERN int ZEXPORT inflateGetHeader OF((z_streamp strm,
gz_headerp head));
/*
- inflateGetHeader() requests that gzip header information be stored in the
+ inflateGetHeader() requests that gzip header information be stored in the
provided gz_header structure. inflateGetHeader() may be called after
inflateInit2() or inflateReset(), and before the first call of inflate().
As inflate() processes the gzip stream, head->done is zero until the header
is completed, at which time head->done is set to one. If a zlib stream is
being decoded, then head->done is set to -1 to indicate that there will be
- no gzip header information forthcoming. Note that Z_BLOCK can be used to
- force inflate() to return immediately after header processing is complete
- and before any actual data is decompressed.
+ no gzip header information forthcoming. Note that Z_BLOCK or Z_TREES can be
+ used to force inflate() to return immediately after header processing is
+ complete and before any actual data is decompressed.
- The text, time, xflags, and os fields are filled in with the gzip header
+ The text, time, xflags, and os fields are filled in with the gzip header
contents. hcrc is set to true if there is a header CRC. (The header CRC
- was valid if done is set to one.) If extra is not Z_NULL, then extra_max
+ was valid if done is set to one.) If extra is not Z_NULL, then extra_max
contains the maximum number of bytes to write to extra. Once done is true,
extra_len contains the actual extra field length, and extra contains the
extra field, or that field truncated if extra_max is less than extra_len.
If name is not Z_NULL, then up to name_max characters are written there,
terminated with a zero unless the length is greater than name_max. If
comment is not Z_NULL, then up to comm_max characters are written there,
- terminated with a zero unless the length is greater than comm_max. When
- any of extra, name, or comment are not Z_NULL and the respective field is
- not present in the header, then that field is set to Z_NULL to signal its
+ terminated with a zero unless the length is greater than comm_max. When any
+ of extra, name, or comment are not Z_NULL and the respective field is not
+ present in the header, then that field is set to Z_NULL to signal its
absence. This allows the use of deflateSetHeader() with the returned
structure to duplicate the header. However if those fields are set to
allocated memory, then the application will need to save those pointers
elsewhere so that they can be eventually freed.
- If inflateGetHeader is not used, then the header information is simply
+ If inflateGetHeader is not used, then the header information is simply
discarded. The header is always checked for validity, including the header
CRC if present. inflateReset() will reset the process to discard the header
information. The application would need to call inflateGetHeader() again to
retrieve the header from the next gzip stream.
- inflateGetHeader returns Z_OK if success, or Z_STREAM_ERROR if the source
+ inflateGetHeader returns Z_OK if success, or Z_STREAM_ERROR if the source
stream state was inconsistent.
*/
@@ -869,9 +962,9 @@
See inflateBack() for the usage of these routines.
inflateBackInit will return Z_OK on success, Z_STREAM_ERROR if any of
- the paramaters are invalid, Z_MEM_ERROR if the internal state could not
- be allocated, or Z_VERSION_ERROR if the version of the library does not
- match the version of the header file.
+ the paramaters are invalid, Z_MEM_ERROR if the internal state could not be
+ allocated, or Z_VERSION_ERROR if the version of the library does not match
+ the version of the header file.
*/
typedef unsigned (*in_func) OF((void FAR *, unsigned char FAR * FAR *));
@@ -891,15 +984,15 @@
inflateBackInit() must be called first to allocate the internal state
and to initialize the state with the user-provided window buffer.
inflateBack() may then be used multiple times to inflate a complete, raw
- deflate stream with each call. inflateBackEnd() is then called to free
- the allocated state.
+ deflate stream with each call. inflateBackEnd() is then called to free the
+ allocated state.
A raw deflate stream is one with no zlib or gzip header or trailer.
This routine would normally be used in a utility that reads zip or gzip
files and writes out uncompressed files. The utility would decode the
- header and process the trailer on its own, hence this routine expects
- only the raw deflate stream to decompress. This is different from the
- normal behavior of inflate(), which expects either a zlib or gzip header and
+ header and process the trailer on its own, hence this routine expects only
+ the raw deflate stream to decompress. This is different from the normal
+ behavior of inflate(), which expects either a zlib or gzip header and
trailer around the deflate stream.
inflateBack() uses two subroutines supplied by the caller that are then
@@ -925,7 +1018,7 @@
calling inflateBack(). If strm->next_in is Z_NULL, then in() will be called
immediately for input. If strm->next_in is not Z_NULL, then strm->avail_in
must also be initialized, and then if strm->avail_in is not zero, input will
- initially be taken from strm->next_in[0 .. strm->avail_in - 1].
+ initially be taken from strm->next_in[0 .. strm->avail_in - 1].
The in_desc and out_desc parameters of inflateBack() is passed as the
first parameter of in() and out() respectively when they are called. These
@@ -935,15 +1028,15 @@
On return, inflateBack() will set strm->next_in and strm->avail_in to
pass back any unused input that was provided by the last in() call. The
return values of inflateBack() can be Z_STREAM_END on success, Z_BUF_ERROR
- if in() or out() returned an error, Z_DATA_ERROR if there was a format
- error in the deflate stream (in which case strm->msg is set to indicate the
- nature of the error), or Z_STREAM_ERROR if the stream was not properly
- initialized. In the case of Z_BUF_ERROR, an input or output error can be
- distinguished using strm->next_in which will be Z_NULL only if in() returned
- an error. If strm->next is not Z_NULL, then the Z_BUF_ERROR was due to
- out() returning non-zero. (in() will always be called before out(), so
- strm->next_in is assured to be defined if out() returns non-zero.) Note
- that inflateBack() cannot return Z_OK.
+ if in() or out() returned an error, Z_DATA_ERROR if there was a format error
+ in the deflate stream (in which case strm->msg is set to indicate the nature
+ of the error), or Z_STREAM_ERROR if the stream was not properly initialized.
+ In the case of Z_BUF_ERROR, an input or output error can be distinguished
+ using strm->next_in which will be Z_NULL only if in() returned an error. If
+ strm->next_in is not Z_NULL, then the Z_BUF_ERROR was due to out() returning
+ non-zero. (in() will always be called before out(), so strm->next_in is
+ assured to be defined if out() returns non-zero.) Note that inflateBack()
+ cannot return Z_OK.
*/
ZEXTERN int ZEXPORT inflateBackEnd OF((z_streamp strm));
@@ -999,23 +1092,22 @@
/* utility functions */
/*
- The following utility functions are implemented on top of the
- basic stream-oriented functions. To simplify the interface, some
- default options are assumed (compression level and memory usage,
- standard memory allocation functions). The source code of these
- utility functions can easily be modified if you need special options.
+ The following utility functions are implemented on top of the basic
+ stream-oriented functions. To simplify the interface, some default options
+ are assumed (compression level and memory usage, standard memory allocation
+ functions). The source code of these utility functions can be modified if
+ you need special options.
*/
ZEXTERN int ZEXPORT compress OF((Bytef *dest, uLongf *destLen,
const Bytef *source, uLong sourceLen));
/*
Compresses the source buffer into the destination buffer. sourceLen is
- the byte length of the source buffer. Upon entry, destLen is the total
- size of the destination buffer, which must be at least the value returned
- by compressBound(sourceLen). Upon exit, destLen is the actual size of the
+ the byte length of the source buffer. Upon entry, destLen is the total size
+ of the destination buffer, which must be at least the value returned by
+ compressBound(sourceLen). Upon exit, destLen is the actual size of the
compressed buffer.
- This function can be used to compress a whole file at once if the
- input file is mmap'ed.
+
compress returns Z_OK if success, Z_MEM_ERROR if there was not
enough memory, Z_BUF_ERROR if there was not enough room in the output
buffer.
@@ -1025,11 +1117,11 @@
const Bytef *source, uLong sourceLen,
int level));
/*
- Compresses the source buffer into the destination buffer. The level
+ Compresses the source buffer into the destination buffer. The level
parameter has the same meaning as in deflateInit. sourceLen is the byte
- length of the source buffer. Upon entry, destLen is the total size of the
+ length of the source buffer. Upon entry, destLen is the total size of the
destination buffer, which must be at least the value returned by
- compressBound(sourceLen). Upon exit, destLen is the actual size of the
+ compressBound(sourceLen). Upon exit, destLen is the actual size of the
compressed buffer.
compress2 returns Z_OK if success, Z_MEM_ERROR if there was not enough
@@ -1040,22 +1132,20 @@
ZEXTERN uLong ZEXPORT compressBound OF((uLong sourceLen));
/*
compressBound() returns an upper bound on the compressed size after
- compress() or compress2() on sourceLen bytes. It would be used before
- a compress() or compress2() call to allocate the destination buffer.
+ compress() or compress2() on sourceLen bytes. It would be used before a
+ compress() or compress2() call to allocate the destination buffer.
*/
ZEXTERN int ZEXPORT uncompress OF((Bytef *dest, uLongf *destLen,
const Bytef *source, uLong sourceLen));
/*
Decompresses the source buffer into the destination buffer. sourceLen is
- the byte length of the source buffer. Upon entry, destLen is the total
- size of the destination buffer, which must be large enough to hold the
- entire uncompressed data. (The size of the uncompressed data must have
- been saved previously by the compressor and transmitted to the decompressor
- by some mechanism outside the scope of this compression library.)
- Upon exit, destLen is the actual size of the compressed buffer.
- This function can be used to decompress a whole file at once if the
- input file is mmap'ed.
+ the byte length of the source buffer. Upon entry, destLen is the total size
+ of the destination buffer, which must be large enough to hold the entire
+ uncompressed data. (The size of the uncompressed data must have been saved
+ previously by the compressor and transmitted to the decompressor by some
+ mechanism outside the scope of this compression library.) Upon exit, destLen
+ is the actual size of the uncompressed buffer.
uncompress returns Z_OK if success, Z_MEM_ERROR if there was not
enough memory, Z_BUF_ERROR if there was not enough room in the output
@@ -1063,136 +1153,199 @@
*/
-typedef voidp gzFile;
+ /* gzip file access functions */
-ZEXTERN gzFile ZEXPORT gzopen OF((const char *path, const char *mode));
/*
- Opens a gzip (.gz) file for reading or writing. The mode parameter
- is as in fopen ("rb" or "wb") but can also include a compression level
- ("wb9") or a strategy: 'f' for filtered data as in "wb6f", 'h' for
- Huffman only compression as in "wb1h", or 'R' for run-length encoding
- as in "wb1R". (See the description of deflateInit2 for more information
- about the strategy parameter.)
+ This library supports reading and writing files in gzip (.gz) format with
+ an interface similar to that of stdio, using the functions that start with
+ "gz". The gzip format is different from the zlib format. gzip is a gzip
+ wrapper, documented in RFC 1952, wrapped around a deflate stream.
+*/
+
+typedef voidp gzFile; /* opaque gzip file descriptor */
+
+/*
+ZEXTERN gzFile ZEXPORT gzopen OF((const char *path, const char *mode));
+
+ Opens a gzip (.gz) file for reading or writing. The mode parameter is as
+ in fopen ("rb" or "wb") but can also include a compression level ("wb9") or
+ a strategy: 'f' for filtered data as in "wb6f", 'h' for Huffman-only
+ compression as in "wb1h", 'R' for run-length encoding as in "wb1R", or 'F'
+ for fixed code compression as in "wb9F". (See the description of
+ deflateInit2 for more information about the strategy parameter.) Also "a"
+ can be used instead of "w" to request that the gzip stream that will be
+ written be appended to the file. "+" will result in an error, since reading
+ and writing to the same gzip file is not supported.
gzopen can be used to read a file which is not in gzip format; in this
case gzread will directly read from the file without decompression.
- gzopen returns NULL if the file could not be opened or if there was
- insufficient memory to allocate the (de)compression state; errno
- can be checked to distinguish the two cases (if errno is zero, the
- zlib error is Z_MEM_ERROR). */
+ gzopen returns NULL if the file could not be opened, if there was
+ insufficient memory to allocate the gzFile state, or if an invalid mode was
+ specified (an 'r', 'w', or 'a' was not provided, or '+' was provided).
+ errno can be checked to determine if the reason gzopen failed was that the
+ file could not be opened.
+*/
-ZEXTERN gzFile ZEXPORT gzdopen OF((int fd, const char *mode));
+ZEXTERN gzFile ZEXPORT gzdopen OF((int fd, const char *mode));
/*
- gzdopen() associates a gzFile with the file descriptor fd. File
- descriptors are obtained from calls like open, dup, creat, pipe or
- fileno (in the file has been previously opened with fopen).
- The mode parameter is as in gzopen.
- The next call of gzclose on the returned gzFile will also close the
- file descriptor fd, just like fclose(fdopen(fd), mode) closes the file
- descriptor fd. If you want to keep fd open, use gzdopen(dup(fd), mode).
- gzdopen returns NULL if there was insufficient memory to allocate
- the (de)compression state.
+ gzdopen associates a gzFile with the file descriptor fd. File descriptors
+ are obtained from calls like open, dup, creat, pipe or fileno (if the file
+ has been previously opened with fopen). The mode parameter is as in gzopen.
+
+ The next call of gzclose on the returned gzFile will also close the file
+ descriptor fd, just like fclose(fdopen(fd, mode)) closes the file descriptor
+ fd. If you want to keep fd open, use fd = dup(fd_keep); gz = gzdopen(fd,
+ mode);. The duplicated descriptor should be saved to avoid a leak, since
+ gzdopen does not close fd if it fails.
+
+ gzdopen returns NULL if there was insufficient memory to allocate the
+ gzFile state, if an invalid mode was specified (an 'r', 'w', or 'a' was not
+ provided, or '+' was provided), or if fd is -1. The file descriptor is not
+ used until the next gz* read, write, seek, or close operation, so gzdopen
+ will not detect if fd is invalid (unless fd is -1).
+*/
+
+ZEXTERN int ZEXPORT gzbuffer OF((gzFile file, unsigned size));
+/*
+ Set the internal buffer size used by this library's functions. The
+ default buffer size is 8192 bytes. This function must be called after
+ gzopen() or gzdopen(), and before any other calls that read or write the
+ file. The buffer memory allocation is always deferred to the first read or
+ write. Two buffers are allocated, either both of the specified size when
+ writing, or one of the specified size and the other twice that size when
+ reading. A larger buffer size of, for example, 64K or 128K bytes will
+ noticeably increase the speed of decompression (reading).
+
+ The new buffer size also affects the maximum length for gzprintf().
+
+ gzbuffer() returns 0 on success, or -1 on failure, such as being called
+ too late.
*/
ZEXTERN int ZEXPORT gzsetparams OF((gzFile file, int level, int strategy));
/*
- Dynamically update the compression level or strategy. See the description
+ Dynamically update the compression level or strategy. See the description
of deflateInit2 for the meaning of these parameters.
+
gzsetparams returns Z_OK if success, or Z_STREAM_ERROR if the file was not
opened for writing.
*/
-ZEXTERN int ZEXPORT gzread OF((gzFile file, voidp buf, unsigned len));
+ZEXTERN int ZEXPORT gzread OF((gzFile file, voidp buf, unsigned len));
/*
- Reads the given number of uncompressed bytes from the compressed file.
- If the input file was not in gzip format, gzread copies the given number
- of bytes into the buffer.
- gzread returns the number of uncompressed bytes actually read (0 for
- end of file, -1 for error). */
+ Reads the given number of uncompressed bytes from the compressed file. If
+ the input file was not in gzip format, gzread copies the given number of
+ bytes into the buffer.
-ZEXTERN int ZEXPORT gzwrite OF((gzFile file,
- voidpc buf, unsigned len));
-/*
- Writes the given number of uncompressed bytes into the compressed file.
- gzwrite returns the number of uncompressed bytes actually written
- (0 in case of error).
+ After reaching the end of a gzip stream in the input, gzread will continue
+ to read, looking for another gzip stream, or failing that, reading the rest
+ of the input file directly without decompression. The entire input file
+ will be read if gzread is called until it returns less than the requested
+ len.
+
+ gzread returns the number of uncompressed bytes actually read, less than
+ len for end of file, or -1 for error.
*/
-ZEXTERN int ZEXPORTVA gzprintf OF((gzFile file, const char *format, ...));
+ZEXTERN int ZEXPORT gzwrite OF((gzFile file,
+ voidpc buf, unsigned len));
/*
- Converts, formats, and writes the args to the compressed file under
- control of the format string, as in fprintf. gzprintf returns the number of
- uncompressed bytes actually written (0 in case of error). The number of
- uncompressed bytes written is limited to 4095. The caller should assure that
- this limit is not exceeded. If it is exceeded, then gzprintf() will return
- return an error (0) with nothing written. In this case, there may also be a
- buffer overflow with unpredictable consequences, which is possible only if
- zlib was compiled with the insecure functions sprintf() or vsprintf()
- because the secure snprintf() or vsnprintf() functions were not available.
+ Writes the given number of uncompressed bytes into the compressed file.
+ gzwrite returns the number of uncompressed bytes written or 0 in case of
+ error.
+*/
+
+ZEXTERN int ZEXPORTVA gzprintf OF((gzFile file, const char *format, ...));
+/*
+ Converts, formats, and writes the arguments to the compressed file under
+ control of the format string, as in fprintf. gzprintf returns the number of
+ uncompressed bytes actually written, or 0 in case of error. The number of
+ uncompressed bytes written is limited to 8191, or one less than the buffer
+ size given to gzbuffer(). The caller should assure that this limit is not
+ exceeded. If it is exceeded, then gzprintf() will return an error (0) with
+ nothing written. In this case, there may also be a buffer overflow with
+ unpredictable consequences, which is possible only if zlib was compiled with
+ the insecure functions sprintf() or vsprintf() because the secure snprintf()
+ or vsnprintf() functions were not available. This can be determined using
+ zlibCompileFlags().
*/
ZEXTERN int ZEXPORT gzputs OF((gzFile file, const char *s));
/*
- Writes the given null-terminated string to the compressed file, excluding
+ Writes the given null-terminated string to the compressed file, excluding
the terminating null character.
- gzputs returns the number of characters written, or -1 in case of error.
+
+ gzputs returns the number of characters written, or -1 in case of error.
*/
ZEXTERN char * ZEXPORT gzgets OF((gzFile file, char *buf, int len));
/*
- Reads bytes from the compressed file until len-1 characters are read, or
- a newline character is read and transferred to buf, or an end-of-file
- condition is encountered. The string is then terminated with a null
- character.
- gzgets returns buf, or Z_NULL in case of error.
+ Reads bytes from the compressed file until len-1 characters are read, or a
+ newline character is read and transferred to buf, or an end-of-file
+ condition is encountered. If any characters are read or if len == 1, the
+ string is terminated with a null character. If no characters are read due
+ to an end-of-file or len < 1, then the buffer is left untouched.
+
+ gzgets returns buf which is a null-terminated string, or it returns NULL
+ for end-of-file or in case of error. If there was an error, the contents at
+ buf are indeterminate.
*/
-ZEXTERN int ZEXPORT gzputc OF((gzFile file, int c));
+ZEXTERN int ZEXPORT gzputc OF((gzFile file, int c));
/*
- Writes c, converted to an unsigned char, into the compressed file.
- gzputc returns the value that was written, or -1 in case of error.
+ Writes c, converted to an unsigned char, into the compressed file. gzputc
+ returns the value that was written, or -1 in case of error.
*/
-ZEXTERN int ZEXPORT gzgetc OF((gzFile file));
+ZEXTERN int ZEXPORT gzgetc OF((gzFile file));
/*
- Reads one byte from the compressed file. gzgetc returns this byte
- or -1 in case of end of file or error.
+ Reads one byte from the compressed file. gzgetc returns this byte or -1
+ in case of end of file or error.
*/
-ZEXTERN int ZEXPORT gzungetc OF((int c, gzFile file));
+ZEXTERN int ZEXPORT gzungetc OF((int c, gzFile file));
/*
- Push one character back onto the stream to be read again later.
- Only one character of push-back is allowed. gzungetc() returns the
- character pushed, or -1 on failure. gzungetc() will fail if a
- character has been pushed but not read yet, or if c is -1. The pushed
- character will be discarded if the stream is repositioned with gzseek()
- or gzrewind().
+ Push one character back onto the stream to be read as the first character
+ on the next read. At least one character of push-back is allowed.
+ gzungetc() returns the character pushed, or -1 on failure. gzungetc() will
+ fail if c is -1, and may fail if a character has been pushed but not read
+ yet. If gzungetc is used immediately after gzopen or gzdopen, at least the
+ output buffer size of pushed characters is allowed. (See gzbuffer above.)
+ The pushed character will be discarded if the stream is repositioned with
+ gzseek() or gzrewind().
*/
-ZEXTERN int ZEXPORT gzflush OF((gzFile file, int flush));
+ZEXTERN int ZEXPORT gzflush OF((gzFile file, int flush));
/*
- Flushes all pending output into the compressed file. The parameter
- flush is as in the deflate() function. The return value is the zlib
- error number (see function gzerror below). gzflush returns Z_OK if
- the flush parameter is Z_FINISH and all output could be flushed.
- gzflush should be called only when strictly necessary because it can
- degrade compression.
+ Flushes all pending output into the compressed file. The parameter flush
+ is as in the deflate() function. The return value is the zlib error number
+ (see function gzerror below). gzflush is only permitted when writing.
+
+ If the flush parameter is Z_FINISH, the remaining data is written and the
+ gzip stream is completed in the output. If gzwrite() is called again, a new
+ gzip stream will be started in the output. gzread() is able to read such
+ concatented gzip streams.
+
+ gzflush should be called only when strictly necessary because it will
+ degrade compression if called too often.
*/
-ZEXTERN z_off_t ZEXPORT gzseek OF((gzFile file,
- z_off_t offset, int whence));
/*
- Sets the starting position for the next gzread or gzwrite on the
- given compressed file. The offset represents a number of bytes in the
- uncompressed data stream. The whence parameter is defined as in lseek(2);
+ZEXTERN z_off_t ZEXPORT gzseek OF((gzFile file,
+ z_off_t offset, int whence));
+
+ Sets the starting position for the next gzread or gzwrite on the given
+ compressed file. The offset represents a number of bytes in the
+ uncompressed data stream. The whence parameter is defined as in lseek(2);
the value SEEK_END is not supported.
+
If the file is opened for reading, this function is emulated but can be
- extremely slow. If the file is opened for writing, only forward seeks are
+ extremely slow. If the file is opened for writing, only forward seeks are
supported; gzseek then compresses a sequence of zeroes up to the new
starting position.
- gzseek returns the resulting offset location as measured in bytes from
+ gzseek returns the resulting offset location as measured in bytes from
the beginning of the uncompressed stream, or -1 in case of error, in
particular if the file is opened for writing and the new starting position
would be before the current position.
@@ -1202,68 +1355,127 @@
/*
Rewinds the given file. This function is supported only for reading.
- gzrewind(file) is equivalent to (int)gzseek(file, 0L, SEEK_SET)
+ gzrewind(file) is equivalent to (int)gzseek(file, 0L, SEEK_SET)
*/
-ZEXTERN z_off_t ZEXPORT gztell OF((gzFile file));
/*
- Returns the starting position for the next gzread or gzwrite on the
- given compressed file. This position represents a number of bytes in the
- uncompressed data stream.
+ZEXTERN z_off_t ZEXPORT gztell OF((gzFile file));
- gztell(file) is equivalent to gzseek(file, 0L, SEEK_CUR)
+ Returns the starting position for the next gzread or gzwrite on the given
+ compressed file. This position represents a number of bytes in the
+ uncompressed data stream, and is zero when starting, even if appending or
+ reading a gzip stream from the middle of a file using gzdopen().
+
+ gztell(file) is equivalent to gzseek(file, 0L, SEEK_CUR)
+*/
+
+/*
+ZEXTERN z_off_t ZEXPORT gzoffset OF((gzFile file));
+
+ Returns the current offset in the file being read or written. This offset
+ includes the count of bytes that precede the gzip stream, for example when
+ appending or when using gzdopen() for reading. When reading, the offset
+ does not include as yet unused buffered input. This information can be used
+ for a progress indicator. On error, gzoffset() returns -1.
*/
ZEXTERN int ZEXPORT gzeof OF((gzFile file));
/*
- Returns 1 when EOF has previously been detected reading the given
- input stream, otherwise zero.
+ Returns true (1) if the end-of-file indicator has been set while reading,
+ false (0) otherwise. Note that the end-of-file indicator is set only if the
+ read tried to go past the end of the input, but came up short. Therefore,
+ just like feof(), gzeof() may return false even if there is no more data to
+ read, in the event that the last read request was for the exact number of
+ bytes remaining in the input file. This will happen if the input file size
+ is an exact multiple of the buffer size.
+
+ If gzeof() returns true, then the read functions will return no more data,
+ unless the end-of-file indicator is reset by gzclearerr() and the input file
+ has grown since the previous end of file was detected.
*/
ZEXTERN int ZEXPORT gzdirect OF((gzFile file));
/*
- Returns 1 if file is being read directly without decompression, otherwise
- zero.
+ Returns true (1) if file is being copied directly while reading, or false
+ (0) if file is a gzip stream being decompressed. This state can change from
+ false to true while reading the input file if the end of a gzip stream is
+ reached, but is followed by data that is not another gzip stream.
+
+ If the input file is empty, gzdirect() will return true, since the input
+ does not contain a gzip stream.
+
+ If gzdirect() is used immediately after gzopen() or gzdopen() it will
+ cause buffers to be allocated to allow reading the file to determine if it
+ is a gzip file. Therefore if gzbuffer() is used, it should be called before
+ gzdirect().
*/
ZEXTERN int ZEXPORT gzclose OF((gzFile file));
/*
- Flushes all pending output if necessary, closes the compressed file
- and deallocates all the (de)compression state. The return value is the zlib
- error number (see function gzerror below).
+ Flushes all pending output if necessary, closes the compressed file and
+ deallocates the (de)compression state. Note that once file is closed, you
+ cannot call gzerror with file, since its structures have been deallocated.
+ gzclose must not be called more than once on the same file, just as free
+ must not be called more than once on the same allocation.
+
+ gzclose will return Z_STREAM_ERROR if file is not valid, Z_ERRNO on a
+ file operation error, or Z_OK on success.
+*/
+
+ZEXTERN int ZEXPORT gzclose_r OF((gzFile file));
+ZEXTERN int ZEXPORT gzclose_w OF((gzFile file));
+/*
+ Same as gzclose(), but gzclose_r() is only for use when reading, and
+ gzclose_w() is only for use when writing or appending. The advantage to
+ using these instead of gzclose() is that they avoid linking in zlib
+ compression or decompression code that is not used when only reading or only
+ writing respectively. If gzclose() is used, then both compression and
+ decompression code will be included the application when linking to a static
+ zlib library.
*/
ZEXTERN const char * ZEXPORT gzerror OF((gzFile file, int *errnum));
/*
- Returns the error message for the last error which occurred on the
- given compressed file. errnum is set to zlib error number. If an
- error occurred in the file system and not in the compression library,
- errnum is set to Z_ERRNO and the application may consult errno
- to get the exact error code.
+ Returns the error message for the last error which occurred on the given
+ compressed file. errnum is set to zlib error number. If an error occurred
+ in the file system and not in the compression library, errnum is set to
+ Z_ERRNO and the application may consult errno to get the exact error code.
+
+ The application must not modify the returned string. Future calls to
+ this function may invalidate the previously returned string. If file is
+ closed, then the string previously returned by gzerror will no longer be
+ available.
+
+ gzerror() should be used to distinguish errors from end-of-file for those
+ functions above that do not distinguish those cases in their return values.
*/
ZEXTERN void ZEXPORT gzclearerr OF((gzFile file));
/*
- Clears the error and end-of-file flags for file. This is analogous to the
- clearerr() function in stdio. This is useful for continuing to read a gzip
+ Clears the error and end-of-file flags for file. This is analogous to the
+ clearerr() function in stdio. This is useful for continuing to read a gzip
file that is being written concurrently.
*/
+
/* checksum functions */
/*
These functions are not related to compression but are exported
- anyway because they might be useful in applications using the
- compression library.
+ anyway because they might be useful in applications using the compression
+ library.
*/
ZEXTERN uLong ZEXPORT adler32 OF((uLong adler, const Bytef *buf, uInt len));
/*
Update a running Adler-32 checksum with the bytes buf[0..len-1] and
- return the updated checksum. If buf is NULL, this function returns
- the required initial value for the checksum.
- An Adler-32 checksum is almost as reliable as a CRC32 but can be computed
- much faster. Usage example:
+ return the updated checksum. If buf is Z_NULL, this function returns the
+ required initial value for the checksum.
+
+ An Adler-32 checksum is almost as reliable as a CRC32 but can be computed
+ much faster.
+
+ Usage example:
uLong adler = adler32(0L, Z_NULL, 0);
@@ -1273,9 +1485,10 @@
if (adler != original_adler) error();
*/
+/*
ZEXTERN uLong ZEXPORT adler32_combine OF((uLong adler1, uLong adler2,
z_off_t len2));
-/*
+
Combine two Adler-32 checksums into one. For two sequences of bytes, seq1
and seq2 with lengths len1 and len2, Adler-32 checksums were calculated for
each, adler1 and adler2. adler32_combine() returns the Adler-32 checksum of
@@ -1285,9 +1498,11 @@
ZEXTERN uLong ZEXPORT crc32 OF((uLong crc, const Bytef *buf, uInt len));
/*
Update a running CRC-32 with the bytes buf[0..len-1] and return the
- updated CRC-32. If buf is NULL, this function returns the required initial
- value for the for the crc. Pre- and post-conditioning (one's complement) is
- performed within this function so it shouldn't be done by the application.
+ updated CRC-32. If buf is Z_NULL, this function returns the required
+ initial value for the for the crc. Pre- and post-conditioning (one's
+ complement) is performed within this function so it shouldn't be done by the
+ application.
+
Usage example:
uLong crc = crc32(0L, Z_NULL, 0);
@@ -1298,9 +1513,9 @@
if (crc != original_crc) error();
*/
+/*
ZEXTERN uLong ZEXPORT crc32_combine OF((uLong crc1, uLong crc2, z_off_t len2));
-/*
Combine two CRC-32 check values into one. For two sequences of bytes,
seq1 and seq2 with lengths len1 and len2, CRC-32 check values were
calculated for each, crc1 and crc2. crc32_combine() returns the CRC-32
@@ -1339,16 +1554,57 @@
inflateInit2_((strm), (windowBits), ZLIB_VERSION, sizeof(z_stream))
#define inflateBackInit(strm, windowBits, window) \
inflateBackInit_((strm), (windowBits), (window), \
- ZLIB_VERSION, sizeof(z_stream))
+ ZLIB_VERSION, sizeof(z_stream))
-
-#if !defined(ZUTIL_H) && !defined(NO_DUMMY_DECL)
- struct internal_state {int dummy;}; /* hack for buggy compilers */
+/* provide 64-bit offset functions if _LARGEFILE64_SOURCE defined, and/or
+ * change the regular functions to 64 bits if _FILE_OFFSET_BITS is 64 (if
+ * both are true, the application gets the *64 functions, and the regular
+ * functions are changed to 64 bits) -- in case these are set on systems
+ * without large file support, _LFS64_LARGEFILE must also be true
+ */
+#if defined(_LARGEFILE64_SOURCE) && _LFS64_LARGEFILE-0
+ ZEXTERN gzFile ZEXPORT gzopen64 OF((const char *, const char *));
+ ZEXTERN z_off64_t ZEXPORT gzseek64 OF((gzFile, z_off64_t, int));
+ ZEXTERN z_off64_t ZEXPORT gztell64 OF((gzFile));
+ ZEXTERN z_off64_t ZEXPORT gzoffset64 OF((gzFile));
+ ZEXTERN uLong ZEXPORT adler32_combine64 OF((uLong, uLong, z_off64_t));
+ ZEXTERN uLong ZEXPORT crc32_combine64 OF((uLong, uLong, z_off64_t));
#endif
+#if !defined(ZLIB_INTERNAL) && _FILE_OFFSET_BITS-0 == 64 && _LFS64_LARGEFILE-0
+# define gzopen gzopen64
+# define gzseek gzseek64
+# define gztell gztell64
+# define gzoffset gzoffset64
+# define adler32_combine adler32_combine64
+# define crc32_combine crc32_combine64
+# ifdef _LARGEFILE64_SOURCE
+ ZEXTERN gzFile ZEXPORT gzopen64 OF((const char *, const char *));
+ ZEXTERN z_off_t ZEXPORT gzseek64 OF((gzFile, z_off_t, int));
+ ZEXTERN z_off_t ZEXPORT gztell64 OF((gzFile));
+ ZEXTERN z_off_t ZEXPORT gzoffset64 OF((gzFile));
+ ZEXTERN uLong ZEXPORT adler32_combine64 OF((uLong, uLong, z_off_t));
+ ZEXTERN uLong ZEXPORT crc32_combine64 OF((uLong, uLong, z_off_t));
+# endif
+#else
+ ZEXTERN gzFile ZEXPORT gzopen OF((const char *, const char *));
+ ZEXTERN z_off_t ZEXPORT gzseek OF((gzFile, z_off_t, int));
+ ZEXTERN z_off_t ZEXPORT gztell OF((gzFile));
+ ZEXTERN z_off_t ZEXPORT gzoffset OF((gzFile));
+ ZEXTERN uLong ZEXPORT adler32_combine OF((uLong, uLong, z_off_t));
+ ZEXTERN uLong ZEXPORT crc32_combine OF((uLong, uLong, z_off_t));
+#endif
+
+/* hack for buggy compilers */
+#if !defined(ZUTIL_H) && !defined(NO_DUMMY_DECL)
+ struct internal_state {int dummy;};
+#endif
+
+/* undocumented functions */
ZEXTERN const char * ZEXPORT zError OF((int));
-ZEXTERN int ZEXPORT inflateSyncPoint OF((z_streamp z));
+ZEXTERN int ZEXPORT inflateSyncPoint OF((z_streamp));
ZEXTERN const uLongf * ZEXPORT get_crc_table OF((void));
+ZEXTERN int ZEXPORT inflateUndermine OF((z_streamp, int));
#ifdef __cplusplus
}
diff --git a/zutil.c b/zutil.c
index ca08ea6..898ed34 100644
--- a/zutil.c
+++ b/zutil.c
@@ -1,9 +1,9 @@
/* zutil.c -- target dependent utility functions for the compression library
- * Copyright (C) 1995-2005 Jean-loup Gailly.
+ * Copyright (C) 1995-2005, 2010 Jean-loup Gailly.
* For conditions of distribution and use, see copyright notice in zlib.h
*/
-/* @(#) $Id: zutil.c,v 3.11 2005/08/04 19:14:14 tor%cs.brown.edu Exp $ */
+/* @(#) $Id$ */
#include "zutil.h"
@@ -34,25 +34,25 @@
uLong flags;
flags = 0;
- switch (sizeof(uInt)) {
+ switch ((int)(sizeof(uInt))) {
case 2: break;
case 4: flags += 1; break;
case 8: flags += 2; break;
default: flags += 3;
}
- switch (sizeof(uLong)) {
+ switch ((int)(sizeof(uLong))) {
case 2: break;
case 4: flags += 1 << 2; break;
case 8: flags += 2 << 2; break;
default: flags += 3 << 2;
}
- switch (sizeof(voidpf)) {
+ switch ((int)(sizeof(voidpf))) {
case 2: break;
case 4: flags += 1 << 4; break;
case 8: flags += 2 << 4; break;
default: flags += 3 << 4;
}
- switch (sizeof(z_off_t)) {
+ switch ((int)(sizeof(z_off_t))) {
case 2: break;
case 4: flags += 1 << 6; break;
case 8: flags += 2 << 6; break;
@@ -117,9 +117,9 @@
# ifndef verbose
# define verbose 0
# endif
-int z_verbose = verbose;
+int ZLIB_INTERNAL z_verbose = verbose;
-void z_error (m)
+void ZLIB_INTERNAL z_error (m)
char *m;
{
fprintf(stderr, "%s\n", m);
@@ -141,14 +141,12 @@
* errno. We define it as a global variable to simplify porting.
* Its value is always 0 and should not be used.
*/
- // Google Gears modification: zutil.h defines errno as z_errno for WinCE.
- //int errno = 0;
- int z_errno = 0;
+ int errno = 0;
#endif
#ifndef HAVE_MEMCPY
-void zmemcpy(dest, source, len)
+void ZLIB_INTERNAL zmemcpy(dest, source, len)
Bytef* dest;
const Bytef* source;
uInt len;
@@ -159,7 +157,7 @@
} while (--len != 0);
}
-int zmemcmp(s1, s2, len)
+int ZLIB_INTERNAL zmemcmp(s1, s2, len)
const Bytef* s1;
const Bytef* s2;
uInt len;
@@ -172,7 +170,7 @@
return 0;
}
-void zmemzero(dest, len)
+void ZLIB_INTERNAL zmemzero(dest, len)
Bytef* dest;
uInt len;
{
@@ -215,7 +213,7 @@
* a protected system like OS/2. Use Microsoft C instead.
*/
-voidpf zcalloc (voidpf opaque, unsigned items, unsigned size)
+voidpf ZLIB_INTERNAL zcalloc (voidpf opaque, unsigned items, unsigned size)
{
voidpf buf = opaque; /* just to make some compilers happy */
ulg bsize = (ulg)items*size;
@@ -239,7 +237,7 @@
return buf;
}
-void zcfree (voidpf opaque, voidpf ptr)
+void ZLIB_INTERNAL zcfree (voidpf opaque, voidpf ptr)
{
int n;
if (*(ush*)&ptr != 0) { /* object < 64K */
@@ -274,13 +272,13 @@
# define _hfree hfree
#endif
-voidpf zcalloc (voidpf opaque, unsigned items, unsigned size)
+voidpf ZLIB_INTERNAL zcalloc (voidpf opaque, uInt items, uInt size)
{
if (opaque) opaque = 0; /* to make compiler happy */
return _halloc((long)items, size);
}
-void zcfree (voidpf opaque, voidpf ptr)
+void ZLIB_INTERNAL zcfree (voidpf opaque, voidpf ptr)
{
if (opaque) opaque = 0; /* to make compiler happy */
_hfree(ptr);
@@ -299,7 +297,7 @@
extern void free OF((voidpf ptr));
#endif
-voidpf zcalloc (opaque, items, size)
+voidpf ZLIB_INTERNAL zcalloc (opaque, items, size)
voidpf opaque;
unsigned items;
unsigned size;
@@ -309,7 +307,7 @@
(voidpf)calloc(items, size);
}
-void zcfree (opaque, ptr)
+void ZLIB_INTERNAL zcfree (opaque, ptr)
voidpf opaque;
voidpf ptr;
{
diff --git a/zutil.h b/zutil.h
index 8b26cef..39cf373 100644
--- a/zutil.h
+++ b/zutil.h
@@ -1,5 +1,5 @@
/* zutil.h -- internal interface and configuration of the compression library
- * Copyright (C) 1995-2005 Jean-loup Gailly.
+ * Copyright (C) 1995-2010 Jean-loup Gailly.
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@@ -8,16 +8,21 @@
subject to change. Applications should only use zlib.h.
*/
-/* @(#) $Id: zutil.h,v 3.10 2005/08/04 19:14:14 tor%cs.brown.edu Exp $ */
+/* @(#) $Id$ */
#ifndef ZUTIL_H
#define ZUTIL_H
-#define ZLIB_INTERNAL
+#if ((__GNUC__-0) * 10 + __GNUC_MINOR__-0 >= 33) && !defined(NO_VIZ)
+# define ZLIB_INTERNAL __attribute__((visibility ("hidden")))
+#else
+# define ZLIB_INTERNAL
+#endif
+
#include "zlib.h"
#ifdef STDC
-# ifndef _WIN32_WCE
+# if !(defined(_WIN32_WCE) && defined(_MSC_VER))
# include <stddef.h>
# endif
# include <string.h>
@@ -89,7 +94,7 @@
#if defined(MSDOS) || (defined(WINDOWS) && !defined(WIN32))
# define OS_CODE 0x00
# if defined(__TURBOC__) || defined(__BORLANDC__)
-# if(__STDC__ == 1) && (defined(__LARGE__) || defined(__COMPACT__))
+# if (__STDC__ == 1) && (defined(__LARGE__) || defined(__COMPACT__))
/* Allow compilation with ANSI keywords only enabled */
void _Cdecl farfree( void *block );
void *_Cdecl farmalloc( unsigned long nbytes );
@@ -118,7 +123,7 @@
#ifdef OS2
# define OS_CODE 0x06
# ifdef M_I86
- #include <malloc.h>
+# include <malloc.h>
# endif
#endif
@@ -151,7 +156,7 @@
# define fdopen(fd,mode) NULL /* No fdopen() */
#endif
-#if (defined(_MSC_VER) && (_MSC_VER > 600))
+#if (defined(_MSC_VER) && (_MSC_VER > 600)) && !defined __INTERIX
# if defined(_WIN32_WCE)
# define fdopen(fd,mode) NULL /* No fdopen() */
# ifndef _PTRDIFF_T_DEFINED
@@ -163,6 +168,18 @@
# endif
#endif
+#if defined(__BORLANDC__)
+ #pragma warn -8004
+ #pragma warn -8008
+ #pragma warn -8066
+#endif
+
+/* provide prototypes for these when building zlib without LFS */
+#if !defined(_LARGEFILE64_SOURCE) || _LFS64_LARGEFILE-0 == 0
+ ZEXTERN uLong ZEXPORT adler32_combine64 OF((uLong, uLong, z_off_t));
+ ZEXTERN uLong ZEXPORT crc32_combine64 OF((uLong, uLong, z_off_t));
+#endif
+
/* common defaults */
#ifndef OS_CODE
@@ -197,7 +214,9 @@
# ifdef WIN32
/* In Win32, vsnprintf is available as the "non-ANSI" _vsnprintf. */
# if !defined(vsnprintf) && !defined(NO_vsnprintf)
-# define vsnprintf _vsnprintf
+# if !defined(_MSC_VER) || ( defined(_MSC_VER) && _MSC_VER < 1500 )
+# define vsnprintf _vsnprintf
+# endif
# endif
# endif
# ifdef __SASC
@@ -232,16 +251,16 @@
# define zmemzero(dest, len) memset(dest, 0, len)
# endif
#else
- extern void zmemcpy OF((Bytef* dest, const Bytef* source, uInt len));
- extern int zmemcmp OF((const Bytef* s1, const Bytef* s2, uInt len));
- extern void zmemzero OF((Bytef* dest, uInt len));
+ void ZLIB_INTERNAL zmemcpy OF((Bytef* dest, const Bytef* source, uInt len));
+ int ZLIB_INTERNAL zmemcmp OF((const Bytef* s1, const Bytef* s2, uInt len));
+ void ZLIB_INTERNAL zmemzero OF((Bytef* dest, uInt len));
#endif
/* Diagnostic functions */
#ifdef DEBUG
# include <stdio.h>
- extern int z_verbose;
- extern void z_error OF((char *m));
+ extern int ZLIB_INTERNAL z_verbose;
+ extern void ZLIB_INTERNAL z_error OF((char *m));
# define Assert(cond,msg) {if(!(cond)) z_error(msg);}
# define Trace(x) {if (z_verbose>=0) fprintf x ;}
# define Tracev(x) {if (z_verbose>0) fprintf x ;}
@@ -258,8 +277,9 @@
#endif
-voidpf zcalloc OF((voidpf opaque, unsigned items, unsigned size));
-void zcfree OF((voidpf opaque, voidpf ptr));
+voidpf ZLIB_INTERNAL zcalloc OF((voidpf opaque, unsigned items,
+ unsigned size));
+void ZLIB_INTERNAL zcfree OF((voidpf opaque, voidpf ptr));
#define ZALLOC(strm, items, size) \
(*((strm)->zalloc))((strm)->opaque, (items), (size))