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djm@openbsd.org7d845f42015-01-14 13:54:13 +00001/* $OpenBSD: sftp-glob.c,v 1.27 2015/01/14 13:54:13 djm Exp $ */
Damien Miller4870afd2001-03-14 10:27:09 +11002/*
Damien Miller4e60ed72004-02-17 17:07:59 +11003 * Copyright (c) 2001-2004 Damien Miller <djm@openbsd.org>
Damien Miller4870afd2001-03-14 10:27:09 +11004 *
Damien Miller4e60ed72004-02-17 17:07:59 +11005 * Permission to use, copy, modify, and distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
Damien Miller4870afd2001-03-14 10:27:09 +11008 *
Damien Miller4e60ed72004-02-17 17:07:59 +11009 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
Damien Miller4870afd2001-03-14 10:27:09 +110016 */
17
18#include "includes.h"
Damien Millerf17883e2006-03-15 11:45:54 +110019
20#include <sys/types.h>
21#ifdef HAVE_SYS_STAT_H
22# include <sys/stat.h>
23#endif
Damien Millere3476ed2006-07-24 14:13:33 +100024
Damien Miller88f254b2006-03-15 11:25:13 +110025#include <dirent.h>
Damien Miller0600c702013-11-21 13:55:43 +110026#include <stdlib.h>
Damien Millere3476ed2006-07-24 14:13:33 +100027#include <string.h>
djm@openbsd.org7d845f42015-01-14 13:54:13 +000028#include <stdlib.h>
Damien Miller4870afd2001-03-14 10:27:09 +110029
Damien Miller4870afd2001-03-14 10:27:09 +110030#include "xmalloc.h"
Damien Miller4870afd2001-03-14 10:27:09 +110031#include "sftp.h"
32#include "sftp-common.h"
33#include "sftp-client.h"
Damien Millerd7d46bb2004-02-18 14:11:13 +110034
35int remote_glob(struct sftp_conn *, const char *, int,
36 int (*)(const char *, int), glob_t *);
Damien Miller4870afd2001-03-14 10:27:09 +110037
38struct SFTP_OPENDIR {
39 SFTP_DIRENT **dir;
40 int offset;
41};
42
43static struct {
Damien Miller3db5f532002-02-13 14:10:32 +110044 struct sftp_conn *conn;
Damien Miller4870afd2001-03-14 10:27:09 +110045} cur;
46
Ben Lindstrombba81212001-06-25 05:01:22 +000047static void *
48fudge_opendir(const char *path)
Damien Miller4870afd2001-03-14 10:27:09 +110049{
50 struct SFTP_OPENDIR *r;
Damien Miller9f0f5c62001-12-21 14:45:46 +110051
Damien Miller6c81fee2013-11-08 12:19:55 +110052 r = xcalloc(1, sizeof(*r));
Damien Miller9f0f5c62001-12-21 14:45:46 +110053
Ben Lindstromc51b9242002-07-07 22:10:15 +000054 if (do_readdir(cur.conn, (char *)path, &r->dir)) {
Darren Tuckera627d422013-06-02 07:31:17 +100055 free(r);
Damien Miller4870afd2001-03-14 10:27:09 +110056 return(NULL);
Ben Lindstromc51b9242002-07-07 22:10:15 +000057 }
Damien Miller4870afd2001-03-14 10:27:09 +110058
59 r->offset = 0;
60
Ben Lindstroma962c2f2002-07-04 00:14:17 +000061 return((void *)r);
Damien Miller4870afd2001-03-14 10:27:09 +110062}
63
Ben Lindstrombba81212001-06-25 05:01:22 +000064static struct dirent *
65fudge_readdir(struct SFTP_OPENDIR *od)
Damien Miller4870afd2001-03-14 10:27:09 +110066{
Damien Miller18bb4732001-03-28 14:35:30 +100067 /* Solaris needs sizeof(dirent) + path length (see below) */
68 static char buf[sizeof(struct dirent) + MAXPATHLEN];
69 struct dirent *ret = (struct dirent *)buf;
Damien Miller4870afd2001-03-14 10:27:09 +110070#ifdef __GNU_LIBRARY__
71 static int inum = 1;
72#endif /* __GNU_LIBRARY__ */
Damien Miller787b2ec2003-11-21 23:56:47 +110073
Damien Miller4870afd2001-03-14 10:27:09 +110074 if (od->dir[od->offset] == NULL)
75 return(NULL);
76
Damien Miller18bb4732001-03-28 14:35:30 +100077 memset(buf, 0, sizeof(buf));
Damien Miller4870afd2001-03-14 10:27:09 +110078
Damien Miller18bb4732001-03-28 14:35:30 +100079 /*
80 * Solaris defines dirent->d_name as a one byte array and expects
81 * you to hack around it.
82 */
83#ifdef BROKEN_ONE_BYTE_DIRENT_D_NAME
84 strlcpy(ret->d_name, od->dir[od->offset++]->filename, MAXPATHLEN);
85#else
Ben Lindstroma3700052001-04-05 23:26:32 +000086 strlcpy(ret->d_name, od->dir[od->offset++]->filename,
Damien Miller18bb4732001-03-28 14:35:30 +100087 sizeof(ret->d_name));
88#endif
Damien Miller4870afd2001-03-14 10:27:09 +110089#ifdef __GNU_LIBRARY__
90 /*
91 * Idiot glibc uses extensions to struct dirent for readdir with
Damien Millera8e06ce2003-11-21 23:48:55 +110092 * ALTDIRFUNCs. Not that this is documented anywhere but the
Damien Miller4870afd2001-03-14 10:27:09 +110093 * source... Fake an inode number to appease it.
94 */
Damien Miller18bb4732001-03-28 14:35:30 +100095 ret->d_ino = inum++;
Damien Miller4870afd2001-03-14 10:27:09 +110096 if (!inum)
97 inum = 1;
98#endif /* __GNU_LIBRARY__ */
99
Damien Miller18bb4732001-03-28 14:35:30 +1000100 return(ret);
Damien Miller4870afd2001-03-14 10:27:09 +1100101}
102
Ben Lindstrombba81212001-06-25 05:01:22 +0000103static void
104fudge_closedir(struct SFTP_OPENDIR *od)
Damien Miller4870afd2001-03-14 10:27:09 +1100105{
106 free_sftp_dirents(od->dir);
Darren Tuckera627d422013-06-02 07:31:17 +1000107 free(od);
Damien Miller4870afd2001-03-14 10:27:09 +1100108}
109
Ben Lindstrombba81212001-06-25 05:01:22 +0000110static int
111fudge_lstat(const char *path, struct stat *st)
Damien Miller4870afd2001-03-14 10:27:09 +1100112{
113 Attrib *a;
Damien Miller9f0f5c62001-12-21 14:45:46 +1100114
Damien Millerd3e69902011-10-18 16:04:57 +1100115 if (!(a = do_lstat(cur.conn, (char *)path, 1)))
Damien Miller4870afd2001-03-14 10:27:09 +1100116 return(-1);
Damien Miller9f0f5c62001-12-21 14:45:46 +1100117
Damien Miller4870afd2001-03-14 10:27:09 +1100118 attrib_to_stat(a, st);
Damien Miller9f0f5c62001-12-21 14:45:46 +1100119
Damien Miller4870afd2001-03-14 10:27:09 +1100120 return(0);
121}
122
Ben Lindstrombba81212001-06-25 05:01:22 +0000123static int
124fudge_stat(const char *path, struct stat *st)
Damien Miller4870afd2001-03-14 10:27:09 +1100125{
126 Attrib *a;
Damien Miller9f0f5c62001-12-21 14:45:46 +1100127
Damien Millerd3e69902011-10-18 16:04:57 +1100128 if (!(a = do_stat(cur.conn, (char *)path, 1)))
Damien Miller4870afd2001-03-14 10:27:09 +1100129 return(-1);
Damien Miller9f0f5c62001-12-21 14:45:46 +1100130
Damien Miller4870afd2001-03-14 10:27:09 +1100131 attrib_to_stat(a, st);
Damien Miller9f0f5c62001-12-21 14:45:46 +1100132
Damien Miller4870afd2001-03-14 10:27:09 +1100133 return(0);
134}
135
136int
Damien Miller3db5f532002-02-13 14:10:32 +1100137remote_glob(struct sftp_conn *conn, const char *pattern, int flags,
Ben Lindstrom206941f2001-04-15 14:27:16 +0000138 int (*errfunc)(const char *, int), glob_t *pglob)
Damien Miller4870afd2001-03-14 10:27:09 +1100139{
Damien Millerea12acf2001-07-14 12:14:56 +1000140 pglob->gl_opendir = fudge_opendir;
141 pglob->gl_readdir = (struct dirent *(*)(void *))fudge_readdir;
142 pglob->gl_closedir = (void (*)(void *))fudge_closedir;
Damien Miller4870afd2001-03-14 10:27:09 +1100143 pglob->gl_lstat = fudge_lstat;
144 pglob->gl_stat = fudge_stat;
Damien Miller9f0f5c62001-12-21 14:45:46 +1100145
Damien Miller4870afd2001-03-14 10:27:09 +1100146 memset(&cur, 0, sizeof(cur));
Damien Miller3db5f532002-02-13 14:10:32 +1100147 cur.conn = conn;
Damien Miller4870afd2001-03-14 10:27:09 +1100148
Damien Miller3db5f532002-02-13 14:10:32 +1100149 return(glob(pattern, flags | GLOB_ALTDIRFUNC, errfunc, pglob));
Damien Miller4870afd2001-03-14 10:27:09 +1100150}