Commit | Line | Data |
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31e12522 AT |
1 | /* |
2 | Copyright (C) Andrew Tridgell 1998 | |
3 | ||
4 | This program is free software; you can redistribute it and/or modify | |
5 | it under the terms of the GNU General Public License as published by | |
6 | the Free Software Foundation; either version 2 of the License, or | |
7 | (at your option) any later version. | |
8 | ||
9 | This program is distributed in the hope that it will be useful, | |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | GNU General Public License for more details. | |
13 | ||
14 | You should have received a copy of the GNU General Public License | |
15 | along with this program; if not, write to the Free Software | |
16 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
17 | */ | |
18 | ||
19 | /* | |
20 | syscall wrappers to ensure that nothing gets done in dry_run mode | |
21 | */ | |
22 | ||
23 | #include "rsync.h" | |
24 | ||
25 | extern int dry_run; | |
f0fca04e | 26 | extern int read_only; |
2b086e03 | 27 | extern int list_only; |
f0fca04e | 28 | |
2b086e03 | 29 | #define CHECK_RO if (read_only || list_only) {errno = EROFS; return -1;} |
31e12522 AT |
30 | |
31 | int do_unlink(char *fname) | |
32 | { | |
33 | if (dry_run) return 0; | |
f0fca04e | 34 | CHECK_RO |
31e12522 AT |
35 | return unlink(fname); |
36 | } | |
37 | ||
38 | int do_symlink(char *fname1, char *fname2) | |
39 | { | |
40 | if (dry_run) return 0; | |
f0fca04e | 41 | CHECK_RO |
31e12522 AT |
42 | return symlink(fname1, fname2); |
43 | } | |
44 | ||
f92ef572 | 45 | #if HAVE_LINK |
31e12522 AT |
46 | int do_link(char *fname1, char *fname2) |
47 | { | |
48 | if (dry_run) return 0; | |
f0fca04e | 49 | CHECK_RO |
31e12522 AT |
50 | return link(fname1, fname2); |
51 | } | |
f92ef572 | 52 | #endif |
31e12522 | 53 | |
7308bd66 AT |
54 | int do_lchown(const char *path, uid_t owner, gid_t group) |
55 | { | |
56 | if (dry_run) return 0; | |
f0fca04e | 57 | CHECK_RO |
7308bd66 AT |
58 | return lchown(path, owner, group); |
59 | } | |
60 | ||
f92ef572 | 61 | #if HAVE_MKNOD |
31e12522 AT |
62 | int do_mknod(char *pathname, mode_t mode, dev_t dev) |
63 | { | |
64 | if (dry_run) return 0; | |
f0fca04e | 65 | CHECK_RO |
31e12522 AT |
66 | return mknod(pathname, mode, dev); |
67 | } | |
f92ef572 | 68 | #endif |
31e12522 AT |
69 | |
70 | int do_rmdir(char *pathname) | |
71 | { | |
72 | if (dry_run) return 0; | |
f0fca04e | 73 | CHECK_RO |
31e12522 AT |
74 | return rmdir(pathname); |
75 | } | |
76 | ||
77 | int do_open(char *pathname, int flags, mode_t mode) | |
78 | { | |
3420c8e6 DD |
79 | if (flags != O_RDONLY) { |
80 | if (dry_run) return -1; | |
81 | CHECK_RO | |
82 | } | |
a926daec DD |
83 | #ifdef O_BINARY |
84 | /* for Windows */ | |
85 | flags |= O_BINARY; | |
86 | #endif | |
b0f3f578 AT |
87 | /* some systems can't handle a double / */ |
88 | if (pathname[0] == '/' && pathname[1] == '/') pathname++; | |
89 | ||
31e12522 AT |
90 | return open(pathname, flags, mode); |
91 | } | |
7308bd66 | 92 | |
f92ef572 | 93 | #if HAVE_CHMOD |
7308bd66 AT |
94 | int do_chmod(const char *path, mode_t mode) |
95 | { | |
96 | if (dry_run) return 0; | |
f0fca04e | 97 | CHECK_RO |
7308bd66 AT |
98 | return chmod(path, mode); |
99 | } | |
f92ef572 | 100 | #endif |
1b2d733a AT |
101 | |
102 | int do_rename(char *fname1, char *fname2) | |
103 | { | |
104 | if (dry_run) return 0; | |
f0fca04e | 105 | CHECK_RO |
1b2d733a AT |
106 | return rename(fname1, fname2); |
107 | } | |
108 | ||
109 | int do_mkdir(char *fname, mode_t mode) | |
110 | { | |
111 | if (dry_run) return 0; | |
f0fca04e | 112 | CHECK_RO |
1b2d733a AT |
113 | return mkdir(fname, mode); |
114 | } | |
115 | ||
f62c17e3 AT |
116 | /* like mkstemp but forces permissions */ |
117 | int do_mkstemp(char *template, mode_t perms) | |
118 | { | |
119 | if (dry_run) return -1; | |
120 | if (read_only) {errno = EROFS; return -1;} | |
121 | ||
122 | #if defined(HAVE_SECURE_MKSTEMP) && defined(HAVE_FCHMOD) | |
123 | { | |
124 | int fd = mkstemp(template); | |
125 | if (fd == -1) return -1; | |
126 | if (fchmod(fd, perms) != 0) { | |
127 | close(fd); | |
128 | unlink(template); | |
129 | return -1; | |
130 | } | |
131 | return fd; | |
132 | } | |
133 | #else | |
134 | if (!mktemp(template)) return -1; | |
135 | return open(template, O_RDWR|O_EXCL|O_CREAT, perms); | |
136 | #endif | |
1b2d733a | 137 | } |
bcacc18b AT |
138 | |
139 | int do_stat(const char *fname, STRUCT_STAT *st) | |
140 | { | |
141 | #if HAVE_OFF64_T | |
142 | return stat64(fname, st); | |
143 | #else | |
144 | return stat(fname, st); | |
145 | #endif | |
146 | } | |
147 | ||
efb2f6bf | 148 | #if SUPPORT_LINKS |
bcacc18b AT |
149 | int do_lstat(const char *fname, STRUCT_STAT *st) |
150 | { | |
151 | #if HAVE_OFF64_T | |
152 | return lstat64(fname, st); | |
153 | #else | |
154 | return lstat(fname, st); | |
155 | #endif | |
156 | } | |
efb2f6bf | 157 | #endif |
bcacc18b AT |
158 | |
159 | int do_fstat(int fd, STRUCT_STAT *st) | |
160 | { | |
161 | #if HAVE_OFF64_T | |
162 | return fstat64(fd, st); | |
163 | #else | |
164 | return fstat(fd, st); | |
165 | #endif | |
166 | } | |
73233f0f AT |
167 | |
168 | OFF_T do_lseek(int fd, OFF_T offset, int whence) | |
169 | { | |
170 | #if HAVE_OFF64_T | |
f28ee65b | 171 | off64_t lseek64(); |
73233f0f AT |
172 | return lseek64(fd, offset, whence); |
173 | #else | |
174 | return lseek(fd, offset, whence); | |
175 | #endif | |
176 | } | |
d6e6ecbd | 177 | |
bb0f7089 | 178 | #ifdef USE_MMAP |
754d120c AT |
179 | void *do_mmap(void *start, int len, int prot, int flags, int fd, OFF_T offset) |
180 | { | |
181 | #if HAVE_OFF64_T | |
182 | return mmap64(start, len, prot, flags, fd, offset); | |
183 | #else | |
184 | return mmap(start, len, prot, flags, fd, offset); | |
185 | #endif | |
186 | } | |
187 | #endif | |
188 | ||
d6e6ecbd AT |
189 | char *d_name(struct dirent *di) |
190 | { | |
59503278 AT |
191 | #if HAVE_BROKEN_READDIR |
192 | return (di->d_name - 2); | |
193 | #else | |
d6e6ecbd | 194 | return di->d_name; |
59503278 | 195 | #endif |
d6e6ecbd | 196 | } |