Issue #18527: Upgrade internal copy of zlib to 1.2.8
diff --git a/Modules/zlib/example.c b/Modules/zlib/example.c
index 604736f..138a699 100644
--- a/Modules/zlib/example.c
+++ b/Modules/zlib/example.c
@@ -1,5 +1,5 @@
/* example.c -- usage example of the zlib compression library
- * Copyright (C) 1995-2006 Jean-loup Gailly.
+ * Copyright (C) 1995-2006, 2011 Jean-loup Gailly.
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@@ -26,7 +26,7 @@
} \
}
-const char hello[] = "hello, hello!";
+z_const char hello[] = "hello, hello!";
/* "hello world" would be more standard, but the repeated "hello"
* stresses the compression code better, sorry...
*/
@@ -34,10 +34,6 @@
const char dictionary[] = "hello";
uLong dictId; /* Adler32 value of the dictionary */
-void test_compress OF((Byte *compr, uLong comprLen,
- Byte *uncompr, uLong uncomprLen));
-void test_gzio OF((const char *fname,
- Byte *uncompr, uLong uncomprLen));
void test_deflate OF((Byte *compr, uLong comprLen));
void test_inflate OF((Byte *compr, uLong comprLen,
Byte *uncompr, uLong uncomprLen));
@@ -53,6 +49,39 @@
Byte *uncompr, uLong uncomprLen));
int main OF((int argc, char *argv[]));
+
+#ifdef Z_SOLO
+
+void *myalloc OF((void *, unsigned, unsigned));
+void myfree OF((void *, void *));
+
+void *myalloc(q, n, m)
+ void *q;
+ unsigned n, m;
+{
+ q = Z_NULL;
+ return calloc(n, m);
+}
+
+void myfree(void *q, void *p)
+{
+ q = Z_NULL;
+ free(p);
+}
+
+static alloc_func zalloc = myalloc;
+static free_func zfree = myfree;
+
+#else /* !Z_SOLO */
+
+static alloc_func zalloc = (alloc_func)0;
+static free_func zfree = (free_func)0;
+
+void test_compress OF((Byte *compr, uLong comprLen,
+ Byte *uncompr, uLong uncomprLen));
+void test_gzio OF((const char *fname,
+ Byte *uncompr, uLong uncomprLen));
+
/* ===========================================================================
* Test compress() and uncompress()
*/
@@ -163,6 +192,8 @@
#endif
}
+#endif /* Z_SOLO */
+
/* ===========================================================================
* Test deflate() with small buffers
*/
@@ -174,14 +205,14 @@
int err;
uLong len = (uLong)strlen(hello)+1;
- c_stream.zalloc = (alloc_func)0;
- c_stream.zfree = (free_func)0;
+ c_stream.zalloc = zalloc;
+ c_stream.zfree = zfree;
c_stream.opaque = (voidpf)0;
err = deflateInit(&c_stream, Z_DEFAULT_COMPRESSION);
CHECK_ERR(err, "deflateInit");
- c_stream.next_in = (Bytef*)hello;
+ c_stream.next_in = (z_const unsigned char *)hello;
c_stream.next_out = compr;
while (c_stream.total_in != len && c_stream.total_out < comprLen) {
@@ -213,8 +244,8 @@
strcpy((char*)uncompr, "garbage");
- d_stream.zalloc = (alloc_func)0;
- d_stream.zfree = (free_func)0;
+ d_stream.zalloc = zalloc;
+ d_stream.zfree = zfree;
d_stream.opaque = (voidpf)0;
d_stream.next_in = compr;
@@ -252,8 +283,8 @@
z_stream c_stream; /* compression stream */
int err;
- c_stream.zalloc = (alloc_func)0;
- c_stream.zfree = (free_func)0;
+ c_stream.zalloc = zalloc;
+ c_stream.zfree = zfree;
c_stream.opaque = (voidpf)0;
err = deflateInit(&c_stream, Z_BEST_SPEED);
@@ -309,8 +340,8 @@
strcpy((char*)uncompr, "garbage");
- d_stream.zalloc = (alloc_func)0;
- d_stream.zfree = (free_func)0;
+ d_stream.zalloc = zalloc;
+ d_stream.zfree = zfree;
d_stream.opaque = (voidpf)0;
d_stream.next_in = compr;
@@ -349,14 +380,14 @@
int err;
uInt len = (uInt)strlen(hello)+1;
- c_stream.zalloc = (alloc_func)0;
- c_stream.zfree = (free_func)0;
+ c_stream.zalloc = zalloc;
+ c_stream.zfree = zfree;
c_stream.opaque = (voidpf)0;
err = deflateInit(&c_stream, Z_DEFAULT_COMPRESSION);
CHECK_ERR(err, "deflateInit");
- c_stream.next_in = (Bytef*)hello;
+ c_stream.next_in = (z_const unsigned char *)hello;
c_stream.next_out = compr;
c_stream.avail_in = 3;
c_stream.avail_out = (uInt)*comprLen;
@@ -388,8 +419,8 @@
strcpy((char*)uncompr, "garbage");
- d_stream.zalloc = (alloc_func)0;
- d_stream.zfree = (free_func)0;
+ d_stream.zalloc = zalloc;
+ d_stream.zfree = zfree;
d_stream.opaque = (voidpf)0;
d_stream.next_in = compr;
@@ -430,22 +461,22 @@
z_stream c_stream; /* compression stream */
int err;
- c_stream.zalloc = (alloc_func)0;
- c_stream.zfree = (free_func)0;
+ c_stream.zalloc = zalloc;
+ c_stream.zfree = zfree;
c_stream.opaque = (voidpf)0;
err = deflateInit(&c_stream, Z_BEST_COMPRESSION);
CHECK_ERR(err, "deflateInit");
err = deflateSetDictionary(&c_stream,
- (const Bytef*)dictionary, sizeof(dictionary));
+ (const Bytef*)dictionary, (int)sizeof(dictionary));
CHECK_ERR(err, "deflateSetDictionary");
dictId = c_stream.adler;
c_stream.next_out = compr;
c_stream.avail_out = (uInt)comprLen;
- c_stream.next_in = (Bytef*)hello;
+ c_stream.next_in = (z_const unsigned char *)hello;
c_stream.avail_in = (uInt)strlen(hello)+1;
err = deflate(&c_stream, Z_FINISH);
@@ -469,8 +500,8 @@
strcpy((char*)uncompr, "garbage");
- d_stream.zalloc = (alloc_func)0;
- d_stream.zfree = (free_func)0;
+ d_stream.zalloc = zalloc;
+ d_stream.zfree = zfree;
d_stream.opaque = (voidpf)0;
d_stream.next_in = compr;
@@ -491,7 +522,7 @@
exit(1);
}
err = inflateSetDictionary(&d_stream, (const Bytef*)dictionary,
- sizeof(dictionary));
+ (int)sizeof(dictionary));
}
CHECK_ERR(err, "inflate with dict");
}
@@ -540,10 +571,15 @@
printf("out of memory\n");
exit(1);
}
+
+#ifdef Z_SOLO
+ argc = strlen(argv[0]);
+#else
test_compress(compr, comprLen, uncompr, uncomprLen);
test_gzio((argc > 1 ? argv[1] : TESTFILE),
uncompr, uncomprLen);
+#endif
test_deflate(compr, comprLen);
test_inflate(compr, comprLen, uncompr, uncomprLen);