2 Copyright (C) Andrew Tridgell 1998
3 Copyright (C) 2002 by Martin Pool
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23 * Syscall wrappers to ensure that nothing gets done in dry_run mode
24 * and to handle system peculiarities.
33 #define CHECK_RO if (read_only || list_only) {errno = EROFS; return -1;}
35 int do_unlink(char *fname)
37 if (dry_run) return 0;
42 int do_symlink(char *fname1, char *fname2)
44 if (dry_run) return 0;
46 return symlink(fname1, fname2);
50 int do_link(char *fname1, char *fname2)
52 if (dry_run) return 0;
54 return link(fname1, fname2);
58 int do_lchown(const char *path, uid_t owner, gid_t group)
60 if (dry_run) return 0;
62 return lchown(path, owner, group);
66 int do_mknod(char *pathname, mode_t mode, dev_t dev)
68 if (dry_run) return 0;
70 return mknod(pathname, mode, dev);
74 int do_rmdir(char *pathname)
76 if (dry_run) return 0;
78 return rmdir(pathname);
81 int do_open(char *pathname, int flags, mode_t mode)
83 if (flags != O_RDONLY) {
84 if (dry_run) return -1;
91 /* some systems can't handle a double / */
92 if (pathname[0] == '/' && pathname[1] == '/') pathname++;
94 return open(pathname, flags, mode);
98 int do_chmod(const char *path, mode_t mode)
100 if (dry_run) return 0;
102 return chmod(path, mode);
106 int do_rename(char *fname1, char *fname2)
108 if (dry_run) return 0;
110 return rename(fname1, fname2);
114 int do_mkdir(char *fname, mode_t mode)
121 /* Some BSD systems cannot make a directory if the name
122 * contains a trailing slash.
123 * <http://www.opensource.apple.com/bugs/X/BSD%20Kernel/2734739.html> */
124 if ((l = strlen(fname)) && (fname[l-1] == '/'))
127 return mkdir(fname, mode);
131 /* like mkstemp but forces permissions */
132 int do_mkstemp(char *template, mode_t perms)
134 if (dry_run) return -1;
135 if (read_only) {errno = EROFS; return -1;}
137 #if defined(HAVE_SECURE_MKSTEMP) && defined(HAVE_FCHMOD)
139 int fd = mkstemp(template);
140 if (fd == -1) return -1;
141 if (fchmod(fd, perms) != 0) {
149 if (!mktemp(template)) return -1;
150 return do_open(template, O_RDWR|O_EXCL|O_CREAT, perms);
154 int do_stat(const char *fname, STRUCT_STAT *st)
157 return stat64(fname, st);
159 return stat(fname, st);
164 int do_lstat(const char *fname, STRUCT_STAT *st)
167 return lstat64(fname, st);
169 return lstat(fname, st);
174 int do_fstat(int fd, STRUCT_STAT *st)
177 return fstat64(fd, st);
179 return fstat(fd, st);
183 OFF_T do_lseek(int fd, OFF_T offset, int whence)
187 return lseek64(fd, offset, whence);
189 return lseek(fd, offset, whence);
194 void *do_mmap(void *start, int len, int prot, int flags, int fd, OFF_T offset)
197 return mmap64(start, len, prot, flags, fd, offset);
199 return mmap(start, len, prot, flags, fd, offset);
204 char *d_name(struct dirent *di)
206 #if HAVE_BROKEN_READDIR
207 return (di->d_name - 2);