1 /* $OpenBSD: sftp-glob.c,v 1.22 2006/08/03 03:34:42 deraadt Exp $ */
2 /*
3 * Copyright (c) 2001-2004 Damien Miller <djm@openbsd.org>
4 *
5 * 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.
8 *
9 * 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.
16 */
17
18 #include "includes.h"
19
20 #include <sys/types.h>
21 #ifdef HAVE_SYS_STAT_H
22 # include <sys/stat.h>
23 #endif
24
25 #include <dirent.h>
26 #include <string.h>
27
28 #include "xmalloc.h"
29 #include "sftp.h"
30 #include "buffer.h"
31 #include "sftp-common.h"
32 #include "sftp-client.h"
33
34 int remote_glob(struct sftp_conn *, const char *, int,
35 int (*)(const char *, int), glob_t *);
36
37 struct SFTP_OPENDIR {
38 SFTP_DIRENT **dir;
39 int offset;
40 };
41
42 static struct {
43 struct sftp_conn *conn;
44 } cur;
45
46 static void *
fudge_opendir(const char * path)47 fudge_opendir(const char *path)
48 {
49 struct SFTP_OPENDIR *r;
50
51 r = xmalloc(sizeof(*r));
52
53 if (do_readdir(cur.conn, (char *)path, &r->dir)) {
54 xfree(r);
55 return(NULL);
56 }
57
58 r->offset = 0;
59
60 return((void *)r);
61 }
62
63 static struct dirent *
fudge_readdir(struct SFTP_OPENDIR * od)64 fudge_readdir(struct SFTP_OPENDIR *od)
65 {
66 /* Solaris needs sizeof(dirent) + path length (see below) */
67 static char buf[sizeof(struct dirent) + MAXPATHLEN];
68 struct dirent *ret = (struct dirent *)buf;
69 #ifdef __GNU_LIBRARY__
70 static int inum = 1;
71 #endif /* __GNU_LIBRARY__ */
72
73 if (od->dir[od->offset] == NULL)
74 return(NULL);
75
76 memset(buf, 0, sizeof(buf));
77
78 /*
79 * Solaris defines dirent->d_name as a one byte array and expects
80 * you to hack around it.
81 */
82 #ifdef BROKEN_ONE_BYTE_DIRENT_D_NAME
83 strlcpy(ret->d_name, od->dir[od->offset++]->filename, MAXPATHLEN);
84 #else
85 strlcpy(ret->d_name, od->dir[od->offset++]->filename,
86 sizeof(ret->d_name));
87 #endif
88 #ifdef __GNU_LIBRARY__
89 /*
90 * Idiot glibc uses extensions to struct dirent for readdir with
91 * ALTDIRFUNCs. Not that this is documented anywhere but the
92 * source... Fake an inode number to appease it.
93 */
94 ret->d_ino = inum++;
95 if (!inum)
96 inum = 1;
97 #endif /* __GNU_LIBRARY__ */
98
99 return(ret);
100 }
101
102 static void
fudge_closedir(struct SFTP_OPENDIR * od)103 fudge_closedir(struct SFTP_OPENDIR *od)
104 {
105 free_sftp_dirents(od->dir);
106 xfree(od);
107 }
108
109 static int
fudge_lstat(const char * path,struct stat * st)110 fudge_lstat(const char *path, struct stat *st)
111 {
112 Attrib *a;
113
114 if (!(a = do_lstat(cur.conn, (char *)path, 0)))
115 return(-1);
116
117 attrib_to_stat(a, st);
118
119 return(0);
120 }
121
122 static int
fudge_stat(const char * path,struct stat * st)123 fudge_stat(const char *path, struct stat *st)
124 {
125 Attrib *a;
126
127 if (!(a = do_stat(cur.conn, (char *)path, 0)))
128 return(-1);
129
130 attrib_to_stat(a, st);
131
132 return(0);
133 }
134
135 int
remote_glob(struct sftp_conn * conn,const char * pattern,int flags,int (* errfunc)(const char *,int),glob_t * pglob)136 remote_glob(struct sftp_conn *conn, const char *pattern, int flags,
137 int (*errfunc)(const char *, int), glob_t *pglob)
138 {
139 pglob->gl_opendir = fudge_opendir;
140 pglob->gl_readdir = (struct dirent *(*)(void *))fudge_readdir;
141 pglob->gl_closedir = (void (*)(void *))fudge_closedir;
142 pglob->gl_lstat = fudge_lstat;
143 pglob->gl_stat = fudge_stat;
144
145 memset(&cur, 0, sizeof(cur));
146 cur.conn = conn;
147
148 return(glob(pattern, flags | GLOB_ALTDIRFUNC, errfunc, pglob));
149 }
150