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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 * | |
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 * | |
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 | |
103 | fudge_closedir(struct SFTP_OPENDIR *od) | |
104 | { | |
105 | free_sftp_dirents(od->dir); | |
106 | xfree(od); | |
107 | } | |
108 | ||
109 | static int | |
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 | |
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 | |
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 | } |