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 #include "includes.h"
20
21 #include <sys/types.h>
22 #ifdef HAVE_SYS_STAT_H
23 # include <sys/stat.h>
24 #endif
25
26 #include <dirent.h>
27 #include <string.h>
28
29 #include "xmalloc.h"
30 #include "sftp.h"
31 #include "buffer.h"
32 #include "sftp-common.h"
33 #include "sftp-client.h"
34
35 int remote_glob(struct sftp_conn *, const char *, int,
36 int (*)(const char *, int), glob_t *);
37
38 struct SFTP_OPENDIR {
39 SFTP_DIRENT **dir;
40 int offset;
41 };
42
43 static struct {
44 struct sftp_conn *conn;
45 } cur;
46
47 static void *
fudge_opendir(const char * path)48 fudge_opendir(const char *path)
49 {
50 struct SFTP_OPENDIR *r;
51
52 r = xmalloc(sizeof(*r));
53
54 if (do_readdir(cur.conn, (char *)path, &r->dir)) {
55 xfree(r);
56 return(NULL);
57 }
58
59 r->offset = 0;
60
61 return((void *)r);
62 }
63
64 static struct dirent *
fudge_readdir(struct SFTP_OPENDIR * od)65 fudge_readdir(struct SFTP_OPENDIR *od)
66 {
67 /* Solaris needs sizeof(dirent) + path length (see below) */
68 static union {
69 char buf_chars[sizeof (struct dirent) + MAXPATHLEN];
70 struct dirent buf_dirent;
71 } buf;
72 struct dirent *ret = &buf.buf_dirent;
73 #ifdef __GNU_LIBRARY__
74 static int inum = 1;
75 #endif /* __GNU_LIBRARY__ */
76
77 if (od->dir[od->offset] == NULL)
78 return(NULL);
79
80 memset(buf.buf_chars, 0, sizeof (buf.buf_chars));
81
82 /*
83 * Solaris defines dirent->d_name as a one byte array and expects
84 * you to hack around it.
85 */
86 #ifdef BROKEN_ONE_BYTE_DIRENT_D_NAME
87 strlcpy(ret->d_name, od->dir[od->offset++]->filename, MAXPATHLEN);
88 #else
89 strlcpy(ret->d_name, od->dir[od->offset++]->filename,
90 sizeof(ret->d_name));
91 #endif
92 #ifdef __GNU_LIBRARY__
93 /*
94 * Idiot glibc uses extensions to struct dirent for readdir with
95 * ALTDIRFUNCs. Not that this is documented anywhere but the
96 * source... Fake an inode number to appease it.
97 */
98 ret->d_ino = inum++;
99 if (!inum)
100 inum = 1;
101 #endif /* __GNU_LIBRARY__ */
102
103 return(ret);
104 }
105
106 static void
fudge_closedir(struct SFTP_OPENDIR * od)107 fudge_closedir(struct SFTP_OPENDIR *od)
108 {
109 free_sftp_dirents(od->dir);
110 xfree(od);
111 }
112
113 static int
fudge_lstat(const char * path,struct stat * st)114 fudge_lstat(const char *path, struct stat *st)
115 {
116 Attrib *a;
117
118 if (!(a = do_lstat(cur.conn, (char *)path, 0)))
119 return(-1);
120
121 attrib_to_stat(a, st);
122
123 return(0);
124 }
125
126 static int
fudge_stat(const char * path,struct stat * st)127 fudge_stat(const char *path, struct stat *st)
128 {
129 Attrib *a;
130
131 if (!(a = do_stat(cur.conn, (char *)path, 0)))
132 return(-1);
133
134 attrib_to_stat(a, st);
135
136 return(0);
137 }
138
139 int
remote_glob(struct sftp_conn * conn,const char * pattern,int flags,int (* errfunc)(const char *,int),glob_t * pglob)140 remote_glob(struct sftp_conn *conn, const char *pattern, int flags,
141 int (*errfunc)(const char *, int), glob_t *pglob)
142 {
143 pglob->gl_opendir = fudge_opendir;
144 pglob->gl_readdir = (struct dirent *(*)(void *))fudge_readdir;
145 pglob->gl_closedir = (void (*)(void *))fudge_closedir;
146 pglob->gl_lstat = fudge_lstat;
147 pglob->gl_stat = fudge_stat;
148
149 memset(&cur, 0, sizeof(cur));
150 cur.conn = conn;
151
152 return(glob(pattern, flags|GLOB_LIMIT|GLOB_ALTDIRFUNC, errfunc, pglob));
153 }
154