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1 | /* | |
2 | * Copyright (c) 2001 Damien Miller. All rights reserved. | |
3 | * | |
4 | * Redistribution and use in source and binary forms, with or without | |
5 | * modification, are permitted provided that the following conditions | |
6 | * are met: | |
7 | * 1. Redistributions of source code must retain the above copyright | |
8 | * notice, this list of conditions and the following disclaimer. | |
9 | * 2. Redistributions in binary form must reproduce the above copyright | |
10 | * notice, this list of conditions and the following disclaimer in the | |
11 | * documentation and/or other materials provided with the distribution. | |
12 | * | |
13 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR | |
14 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES | |
15 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. | |
16 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, | |
17 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
18 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
19 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
20 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
21 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | |
22 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
23 | */ | |
24 | ||
25 | #include "includes.h" | |
26 | RCSID("$OpenBSD: sftp-glob.c,v 1.3 2001/04/03 13:56:11 stevesk Exp $"); | |
27 | ||
28 | #include "ssh.h" | |
29 | #include "buffer.h" | |
30 | #include "bufaux.h" | |
31 | #include "getput.h" | |
32 | #include "xmalloc.h" | |
33 | #include "log.h" | |
34 | #include "atomicio.h" | |
35 | #include "pathnames.h" | |
36 | ||
37 | #include "sftp.h" | |
38 | #include "sftp-common.h" | |
39 | #include "sftp-client.h" | |
40 | #include "sftp-glob.h" | |
41 | ||
42 | struct SFTP_OPENDIR { | |
43 | SFTP_DIRENT **dir; | |
44 | int offset; | |
45 | }; | |
46 | ||
47 | static struct { | |
48 | int fd_in; | |
49 | int fd_out; | |
50 | } cur; | |
51 | ||
52 | void *fudge_opendir(const char *path) | |
53 | { | |
54 | struct SFTP_OPENDIR *r; | |
55 | ||
56 | r = xmalloc(sizeof(*r)); | |
57 | ||
58 | if (do_readdir(cur.fd_in, cur.fd_out, (char*)path, &r->dir)) | |
59 | return(NULL); | |
60 | ||
61 | r->offset = 0; | |
62 | ||
63 | return((void*)r); | |
64 | } | |
65 | ||
66 | struct dirent *fudge_readdir(struct SFTP_OPENDIR *od) | |
67 | { | |
68 | /* Solaris needs sizeof(dirent) + path length (see below) */ | |
69 | static char buf[sizeof(struct dirent) + MAXPATHLEN]; | |
70 | struct dirent *ret = (struct dirent *)buf; | |
71 | #ifdef __GNU_LIBRARY__ | |
72 | static int inum = 1; | |
73 | #endif /* __GNU_LIBRARY__ */ | |
74 | ||
75 | if (od->dir[od->offset] == NULL) | |
76 | return(NULL); | |
77 | ||
78 | memset(buf, 0, sizeof(buf)); | |
79 | ||
80 | /* | |
81 | * Solaris defines dirent->d_name as a one byte array and expects | |
82 | * you to hack around it. | |
83 | */ | |
84 | #ifdef BROKEN_ONE_BYTE_DIRENT_D_NAME | |
85 | strlcpy(ret->d_name, od->dir[od->offset++]->filename, MAXPATHLEN); | |
86 | #else | |
87 | strlcpy(ret->d_name, od->dir[od->offset++]->filename, | |
88 | sizeof(ret->d_name)); | |
89 | #endif | |
90 | #ifdef __GNU_LIBRARY__ | |
91 | /* | |
92 | * Idiot glibc uses extensions to struct dirent for readdir with | |
93 | * ALTDIRFUNCs. Not that this is documented anywhere but the | |
94 | * source... Fake an inode number to appease it. | |
95 | */ | |
96 | ret->d_ino = inum++; | |
97 | if (!inum) | |
98 | inum = 1; | |
99 | #endif /* __GNU_LIBRARY__ */ | |
100 | ||
101 | return(ret); | |
102 | } | |
103 | ||
104 | void fudge_closedir(struct SFTP_OPENDIR *od) | |
105 | { | |
106 | free_sftp_dirents(od->dir); | |
107 | xfree(od); | |
108 | } | |
109 | ||
110 | void attrib_to_stat(Attrib *a, struct stat *st) | |
111 | { | |
112 | memset(st, 0, sizeof(*st)); | |
113 | ||
114 | if (a->flags & SSH2_FILEXFER_ATTR_SIZE) | |
115 | st->st_size = a->size; | |
116 | if (a->flags & SSH2_FILEXFER_ATTR_UIDGID) { | |
117 | st->st_uid = a->uid; | |
118 | st->st_gid = a->gid; | |
119 | } | |
120 | if (a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS) | |
121 | st->st_mode = a->perm; | |
122 | if (a->flags & SSH2_FILEXFER_ATTR_ACMODTIME) { | |
123 | st->st_atime = a->atime; | |
124 | st->st_mtime = a->mtime; | |
125 | } | |
126 | } | |
127 | ||
128 | int fudge_lstat(const char *path, struct stat *st) | |
129 | { | |
130 | Attrib *a; | |
131 | ||
132 | if (!(a = do_lstat(cur.fd_in, cur.fd_out, (char*)path, 0))) | |
133 | return(-1); | |
134 | ||
135 | attrib_to_stat(a, st); | |
136 | ||
137 | return(0); | |
138 | } | |
139 | ||
140 | int fudge_stat(const char *path, struct stat *st) | |
141 | { | |
142 | Attrib *a; | |
143 | ||
144 | if (!(a = do_stat(cur.fd_in, cur.fd_out, (char*)path, 0))) | |
145 | return(-1); | |
146 | ||
147 | attrib_to_stat(a, st); | |
148 | ||
149 | return(0); | |
150 | } | |
151 | ||
152 | int | |
153 | remote_glob(int fd_in, int fd_out, const char *pattern, int flags, | |
154 | const int (*errfunc)(const char *, int), glob_t *pglob) | |
155 | { | |
156 | pglob->gl_opendir = (void*)fudge_opendir; | |
157 | pglob->gl_readdir = (void*)fudge_readdir; | |
158 | pglob->gl_closedir = (void*)fudge_closedir; | |
159 | pglob->gl_lstat = fudge_lstat; | |
160 | pglob->gl_stat = fudge_stat; | |
161 | ||
162 | memset(&cur, 0, sizeof(cur)); | |
163 | cur.fd_in = fd_in; | |
164 | cur.fd_out = fd_out; | |
165 | ||
166 | return(glob(pattern, flags | GLOB_ALTDIRFUNC, (void*)errfunc, | |
167 | pglob)); | |
168 | } |