| 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; |
| 26 | extern int read_only; |
| 27 | |
| 28 | #define CHECK_RO if (read_only) {errno = EROFS; return -1;} |
| 29 | |
| 30 | int do_unlink(char *fname) |
| 31 | { |
| 32 | if (dry_run) return 0; |
| 33 | CHECK_RO |
| 34 | return unlink(fname); |
| 35 | } |
| 36 | |
| 37 | int do_symlink(char *fname1, char *fname2) |
| 38 | { |
| 39 | if (dry_run) return 0; |
| 40 | CHECK_RO |
| 41 | return symlink(fname1, fname2); |
| 42 | } |
| 43 | |
| 44 | #if HAVE_LINK |
| 45 | int do_link(char *fname1, char *fname2) |
| 46 | { |
| 47 | if (dry_run) return 0; |
| 48 | CHECK_RO |
| 49 | return link(fname1, fname2); |
| 50 | } |
| 51 | #endif |
| 52 | |
| 53 | int do_lchown(const char *path, uid_t owner, gid_t group) |
| 54 | { |
| 55 | if (dry_run) return 0; |
| 56 | CHECK_RO |
| 57 | return lchown(path, owner, group); |
| 58 | } |
| 59 | |
| 60 | #if HAVE_MKNOD |
| 61 | int do_mknod(char *pathname, mode_t mode, dev_t dev) |
| 62 | { |
| 63 | if (dry_run) return 0; |
| 64 | CHECK_RO |
| 65 | return mknod(pathname, mode, dev); |
| 66 | } |
| 67 | #endif |
| 68 | |
| 69 | int do_rmdir(char *pathname) |
| 70 | { |
| 71 | if (dry_run) return 0; |
| 72 | CHECK_RO |
| 73 | return rmdir(pathname); |
| 74 | } |
| 75 | |
| 76 | int do_open(char *pathname, int flags, mode_t mode) |
| 77 | { |
| 78 | if (dry_run) return -1; |
| 79 | CHECK_RO |
| 80 | return open(pathname, flags, mode); |
| 81 | } |
| 82 | |
| 83 | #if HAVE_CHMOD |
| 84 | int do_chmod(const char *path, mode_t mode) |
| 85 | { |
| 86 | if (dry_run) return 0; |
| 87 | CHECK_RO |
| 88 | return chmod(path, mode); |
| 89 | } |
| 90 | #endif |
| 91 | |
| 92 | int do_rename(char *fname1, char *fname2) |
| 93 | { |
| 94 | if (dry_run) return 0; |
| 95 | CHECK_RO |
| 96 | return rename(fname1, fname2); |
| 97 | } |
| 98 | |
| 99 | int do_mkdir(char *fname, mode_t mode) |
| 100 | { |
| 101 | if (dry_run) return 0; |
| 102 | CHECK_RO |
| 103 | return mkdir(fname, mode); |
| 104 | } |
| 105 | |
| 106 | char *do_mktemp(char *template) |
| 107 | { |
| 108 | if (dry_run) return NULL; |
| 109 | if (read_only) {errno = EROFS; return NULL;} |
| 110 | return mktemp(template); |
| 111 | } |
| 112 | |
| 113 | int do_stat(const char *fname, STRUCT_STAT *st) |
| 114 | { |
| 115 | #if HAVE_OFF64_T |
| 116 | return stat64(fname, st); |
| 117 | #else |
| 118 | return stat(fname, st); |
| 119 | #endif |
| 120 | } |
| 121 | |
| 122 | #if SUPPORT_LINKS |
| 123 | int do_lstat(const char *fname, STRUCT_STAT *st) |
| 124 | { |
| 125 | #if HAVE_OFF64_T |
| 126 | return lstat64(fname, st); |
| 127 | #else |
| 128 | return lstat(fname, st); |
| 129 | #endif |
| 130 | } |
| 131 | #endif |
| 132 | |
| 133 | int do_fstat(int fd, STRUCT_STAT *st) |
| 134 | { |
| 135 | #if HAVE_OFF64_T |
| 136 | return fstat64(fd, st); |
| 137 | #else |
| 138 | return fstat(fd, st); |
| 139 | #endif |
| 140 | } |
| 141 | |
| 142 | OFF_T do_lseek(int fd, OFF_T offset, int whence) |
| 143 | { |
| 144 | #if HAVE_OFF64_T |
| 145 | off64_t lseek64(); |
| 146 | return lseek64(fd, offset, whence); |
| 147 | #else |
| 148 | return lseek(fd, offset, whence); |
| 149 | #endif |
| 150 | } |
| 151 | |
| 152 | #if HAVE_MMAP |
| 153 | void *do_mmap(void *start, int len, int prot, int flags, int fd, OFF_T offset) |
| 154 | { |
| 155 | #if HAVE_OFF64_T |
| 156 | return mmap64(start, len, prot, flags, fd, offset); |
| 157 | #else |
| 158 | return mmap(start, len, prot, flags, fd, offset); |
| 159 | #endif |
| 160 | } |
| 161 | #endif |
| 162 | |
| 163 | char *d_name(struct dirent *di) |
| 164 | { |
| 165 | #if HAVE_BROKEN_READDIR |
| 166 | return (di->d_name - 2); |
| 167 | #else |
| 168 | return di->d_name; |
| 169 | #endif |
| 170 | } |