1 /*
2 * Copyright (c) 2001-2004 Damien Miller <djm@openbsd.org>
3 *
4 * Permission to use, copy, modify, and distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 */
16
17 /* $OpenBSD: sftp-glob.c,v 1.22 2006/08/03 03:34:42 deraadt Exp $ */
18
19 #pragma ident "%Z%%M% %I% %E% SMI"
20
21 #include "includes.h"
22
23 #include <sys/types.h>
24 #ifdef HAVE_SYS_STAT_H
25 # include <sys/stat.h>
26 #endif
27
28 #include <dirent.h>
29 #include <string.h>
30
31 #include "xmalloc.h"
32 #include "sftp.h"
33 #include "buffer.h"
34 #include "sftp-common.h"
35 #include "sftp-client.h"
36
37 int remote_glob(struct sftp_conn *, const char *, int,
38 int (*)(const char *, int), glob_t *);
39
40 struct SFTP_OPENDIR {
41 SFTP_DIRENT **dir;
42 int offset;
43 };
44
45 static struct {
46 struct sftp_conn *conn;
47 } cur;
48
49 static void *
fudge_opendir(const char * path)50 fudge_opendir(const char *path)
51 {
52 struct SFTP_OPENDIR *r;
53
54 r = xmalloc(sizeof(*r));
55
56 if (do_readdir(cur.conn, (char *)path, &r->dir)) {
57 xfree(r);
58 return(NULL);
59 }
60
61 r->offset = 0;
62
63 return((void *)r);
64 }
65
66 static struct dirent *
fudge_readdir(struct SFTP_OPENDIR * od)67 fudge_readdir(struct SFTP_OPENDIR *od)
68 {
69 /* Solaris needs sizeof(dirent) + path length (see below) */
70 static union {
71 char buf_chars[sizeof (struct dirent) + MAXPATHLEN];
72 struct dirent buf_dirent;
73 } buf;
74 struct dirent *ret = &buf.buf_dirent;
75 #ifdef __GNU_LIBRARY__
76 static int inum = 1;
77 #endif /* __GNU_LIBRARY__ */
78
79 if (od->dir[od->offset] == NULL)
80 return(NULL);
81
82 memset(buf.buf_chars, 0, sizeof (buf.buf_chars));
83
84 /*
85 * Solaris defines dirent->d_name as a one byte array and expects
86 * you to hack around it.
87 */
88 #ifdef BROKEN_ONE_BYTE_DIRENT_D_NAME
89 strlcpy(ret->d_name, od->dir[od->offset++]->filename, MAXPATHLEN);
90 #else
91 strlcpy(ret->d_name, od->dir[od->offset++]->filename,
92 sizeof(ret->d_name));
93 #endif
94 #ifdef __GNU_LIBRARY__
95 /*
96 * Idiot glibc uses extensions to struct dirent for readdir with
97 * ALTDIRFUNCs. Not that this is documented anywhere but the
98 * source... Fake an inode number to appease it.
99 */
100 ret->d_ino = inum++;
101 if (!inum)
102 inum = 1;
103 #endif /* __GNU_LIBRARY__ */
104
105 return(ret);
106 }
107
108 static void
fudge_closedir(struct SFTP_OPENDIR * od)109 fudge_closedir(struct SFTP_OPENDIR *od)
110 {
111 free_sftp_dirents(od->dir);
112 xfree(od);
113 }
114
115 static int
fudge_lstat(const char * path,struct stat * st)116 fudge_lstat(const char *path, struct stat *st)
117 {
118 Attrib *a;
119
120 if (!(a = do_lstat(cur.conn, (char *)path, 0)))
121 return(-1);
122
123 attrib_to_stat(a, st);
124
125 return(0);
126 }
127
128 static int
fudge_stat(const char * path,struct stat * st)129 fudge_stat(const char *path, struct stat *st)
130 {
131 Attrib *a;
132
133 if (!(a = do_stat(cur.conn, (char *)path, 0)))
134 return(-1);
135
136 attrib_to_stat(a, st);
137
138 return(0);
139 }
140
141 int
remote_glob(struct sftp_conn * conn,const char * pattern,int flags,int (* errfunc)(const char *,int),glob_t * pglob)142 remote_glob(struct sftp_conn *conn, const char *pattern, int flags,
143 int (*errfunc)(const char *, int), glob_t *pglob)
144 {
145 pglob->gl_opendir = fudge_opendir;
146 pglob->gl_readdir = (struct dirent *(*)(void *))fudge_readdir;
147 pglob->gl_closedir = (void (*)(void *))fudge_closedir;
148 pglob->gl_lstat = fudge_lstat;
149 pglob->gl_stat = fudge_stat;
150
151 memset(&cur, 0, sizeof(cur));
152 cur.conn = conn;
153
154 return(glob(pattern, flags | GLOB_ALTDIRFUNC, errfunc, pglob));
155 }
156