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Commit | Line | Data |
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3839e657 TT |
1 | /* |
2 | * chattr.c - Change file attributes on an ext2 file system | |
3 | * | |
4 | * Copyright (C) 1993, 1994 Remy Card <card@masi.ibp.fr> | |
5 | * Laboratoire MASI, Institut Blaise Pascal | |
6 | * Universite Pierre et Marie Curie (Paris VI) | |
7 | * | |
8 | * This file can be redistributed under the terms of the GNU General | |
9 | * Public License | |
10 | */ | |
11 | ||
12 | /* | |
13 | * History: | |
14 | * 93/10/30 - Creation | |
15 | * 93/11/13 - Replace stat() calls by lstat() to avoid loops | |
16 | * 94/02/27 - Integrated in Ted's distribution | |
a88fa0c0 TT |
17 | * 98/12/29 - Ignore symlinks when working recursively (G M Sipe) |
18 | * 98/12/29 - Display version info only when -V specified (G M Sipe) | |
3839e657 TT |
19 | */ |
20 | ||
fff18b4e | 21 | #define _LARGEFILE64_SOURCE |
fff18b4e | 22 | |
d1154eb4 | 23 | #include "config.h" |
a418d3ad | 24 | #include <sys/types.h> |
3839e657 TT |
25 | #include <dirent.h> |
26 | #include <fcntl.h> | |
3839e657 TT |
27 | #include <stdio.h> |
28 | #include <stdlib.h> | |
29 | #include <unistd.h> | |
19c78dc0 | 30 | #include <string.h> |
a418d3ad TT |
31 | #ifdef HAVE_ERRNO_H |
32 | #include <errno.h> | |
33 | #endif | |
3839e657 TT |
34 | #include <sys/param.h> |
35 | #include <sys/stat.h> | |
54c637d4 | 36 | #include "ext2fs/ext2_fs.h" |
3839e657 | 37 | |
54434927 TT |
38 | #ifdef __GNUC__ |
39 | #define EXT2FS_ATTR(x) __attribute__(x) | |
40 | #else | |
41 | #define EXT2FS_ATTR(x) | |
42 | #endif | |
43 | ||
36caf25f TT |
44 | #ifndef S_ISLNK /* So we can compile even with gcc-warn */ |
45 | # ifdef __S_IFLNK | |
46 | # define S_ISLNK(mode) __S_ISTYPE((mode), __S_IFLNK) | |
47 | # else | |
48 | # define S_ISLNK(mode) 0 | |
49 | # endif | |
50 | #endif | |
51 | ||
3839e657 TT |
52 | #include "et/com_err.h" |
53 | #include "e2p/e2p.h" | |
99ceb8ec | 54 | #include "support/nls-enable.h" |
3839e657 TT |
55 | |
56 | #include "../version.h" | |
57 | ||
e1a0a3e3 | 58 | static const char * program_name = "chattr"; |
3839e657 | 59 | |
9a718849 TT |
60 | static int add; |
61 | static int rem; | |
62 | static int set; | |
63 | static int set_version; | |
3839e657 | 64 | |
e1a0a3e3 | 65 | static unsigned long version; |
3839e657 | 66 | |
3627e838 LX |
67 | static int set_project; |
68 | static unsigned long project; | |
69 | ||
9a718849 TT |
70 | static int recursive; |
71 | static int verbose; | |
e68594d2 | 72 | static int silent; |
3839e657 | 73 | |
e1a0a3e3 TT |
74 | static unsigned long af; |
75 | static unsigned long rf; | |
76 | static unsigned long sf; | |
3839e657 | 77 | |
b705640a TT |
78 | #ifdef _LFS64_LARGEFILE |
79 | #define LSTAT lstat64 | |
80 | #define STRUCT_STAT struct stat64 | |
81 | #else | |
82 | #define LSTAT lstat | |
83 | #define STRUCT_STAT struct stat | |
84 | #endif | |
85 | ||
642935c0 | 86 | static void usage(void) |
3839e657 | 87 | { |
e68594d2 | 88 | fprintf(stderr, |
3627e838 | 89 | _("Usage: %s [-pRVf] [-+=aAcCdDeijPsStTu] [-v version] files...\n"), |
642935c0 TT |
90 | program_name); |
91 | exit(1); | |
3839e657 TT |
92 | } |
93 | ||
9a718849 TT |
94 | struct flags_char { |
95 | unsigned long flag; | |
96 | char optchar; | |
97 | }; | |
98 | ||
99 | static const struct flags_char flags_array[] = { | |
100 | { EXT2_NOATIME_FL, 'A' }, | |
101 | { EXT2_SYNC_FL, 'S' }, | |
88372d5c | 102 | { EXT2_DIRSYNC_FL, 'D' }, |
9a718849 TT |
103 | { EXT2_APPEND_FL, 'a' }, |
104 | { EXT2_COMPR_FL, 'c' }, | |
105 | { EXT2_NODUMP_FL, 'd' }, | |
7c8da6e3 | 106 | { EXT4_EXTENTS_FL, 'e'}, |
9a718849 TT |
107 | { EXT2_IMMUTABLE_FL, 'i' }, |
108 | { EXT3_JOURNAL_DATA_FL, 'j' }, | |
e1cec446 | 109 | { EXT4_PROJINHERIT_FL, 'P' }, |
9a718849 TT |
110 | { EXT2_SECRM_FL, 's' }, |
111 | { EXT2_UNRM_FL, 'u' }, | |
b3f5b4c2 | 112 | { EXT2_NOTAIL_FL, 't' }, |
15f9011a | 113 | { EXT2_TOPDIR_FL, 'T' }, |
0796e660 | 114 | { FS_NOCOW_FL, 'C' }, |
9a718849 TT |
115 | { 0, 0 } |
116 | }; | |
117 | ||
118 | static unsigned long get_flag(char c) | |
119 | { | |
120 | const struct flags_char *fp; | |
efc6f628 | 121 | |
9a718849 TT |
122 | for (fp = flags_array; fp->flag != 0; fp++) { |
123 | if (fp->optchar == c) | |
124 | return fp->flag; | |
125 | } | |
126 | return 0; | |
127 | } | |
128 | ||
129 | ||
3839e657 TT |
130 | static int decode_arg (int * i, int argc, char ** argv) |
131 | { | |
132 | char * p; | |
133 | char * tmp; | |
9a718849 | 134 | unsigned long fl; |
3839e657 TT |
135 | |
136 | switch (argv[*i][0]) | |
137 | { | |
138 | case '-': | |
9a718849 TT |
139 | for (p = &argv[*i][1]; *p; p++) { |
140 | if (*p == 'R') { | |
3839e657 | 141 | recursive = 1; |
9a718849 TT |
142 | continue; |
143 | } | |
144 | if (*p == 'V') { | |
3839e657 | 145 | verbose = 1; |
9a718849 TT |
146 | continue; |
147 | } | |
e68594d2 TT |
148 | if (*p == 'f') { |
149 | silent = 1; | |
150 | continue; | |
151 | } | |
3627e838 LX |
152 | if (*p == 'p') { |
153 | (*i)++; | |
154 | if (*i >= argc) | |
155 | usage (); | |
156 | project = strtol (argv[*i], &tmp, 0); | |
157 | if (*tmp) { | |
158 | com_err (program_name, 0, | |
159 | _("bad project - %s\n"), | |
160 | argv[*i]); | |
161 | usage (); | |
162 | } | |
163 | set_project = 1; | |
164 | continue; | |
165 | } | |
9a718849 | 166 | if (*p == 'v') { |
1e3472c5 | 167 | (*i)++; |
3839e657 TT |
168 | if (*i >= argc) |
169 | usage (); | |
3839e657 | 170 | version = strtol (argv[*i], &tmp, 0); |
9a718849 | 171 | if (*tmp) { |
3839e657 | 172 | com_err (program_name, 0, |
e68594d2 | 173 | _("bad version - %s\n"), |
9a718849 | 174 | argv[*i]); |
3839e657 TT |
175 | usage (); |
176 | } | |
177 | set_version = 1; | |
9a718849 | 178 | continue; |
3839e657 | 179 | } |
9a718849 TT |
180 | if ((fl = get_flag(*p)) == 0) |
181 | usage(); | |
182 | rf |= fl; | |
183 | rem = 1; | |
184 | } | |
3839e657 TT |
185 | break; |
186 | case '+': | |
187 | add = 1; | |
9a718849 TT |
188 | for (p = &argv[*i][1]; *p; p++) { |
189 | if ((fl = get_flag(*p)) == 0) | |
190 | usage(); | |
191 | af |= fl; | |
192 | } | |
3839e657 TT |
193 | break; |
194 | case '=': | |
195 | set = 1; | |
9a718849 TT |
196 | for (p = &argv[*i][1]; *p; p++) { |
197 | if ((fl = get_flag(*p)) == 0) | |
198 | usage(); | |
199 | sf |= fl; | |
200 | } | |
3839e657 TT |
201 | break; |
202 | default: | |
203 | return EOF; | |
204 | break; | |
205 | } | |
206 | return 1; | |
207 | } | |
208 | ||
2d328bb7 | 209 | static int chattr_dir_proc(const char *, struct dirent *, void *); |
3839e657 | 210 | |
2d328bb7 | 211 | static int change_attributes(const char * name) |
3839e657 TT |
212 | { |
213 | unsigned long flags; | |
b705640a | 214 | STRUCT_STAT st; |
3839e657 | 215 | |
b705640a | 216 | if (LSTAT (name, &st) == -1) { |
e68594d2 TT |
217 | if (!silent) |
218 | com_err (program_name, errno, | |
219 | _("while trying to stat %s"), name); | |
220 | return -1; | |
3839e657 | 221 | } |
e1a0a3e3 | 222 | |
7c8da6e3 AK |
223 | if (fgetflags(name, &flags) == -1) { |
224 | if (!silent) | |
225 | com_err(program_name, errno, | |
226 | _("while reading flags on %s"), name); | |
227 | return -1; | |
228 | } | |
e1a0a3e3 TT |
229 | if (set) { |
230 | if (verbose) { | |
d9c56d3c | 231 | printf (_("Flags of %s set as "), name); |
f3db3566 | 232 | print_flags (stdout, sf, 0); |
3839e657 TT |
233 | printf ("\n"); |
234 | } | |
235 | if (fsetflags (name, sf) == -1) | |
236 | perror (name); | |
e1a0a3e3 | 237 | } else { |
7c8da6e3 AK |
238 | if (rem) |
239 | flags &= ~rf; | |
240 | if (add) | |
241 | flags |= af; | |
7c8da6e3 AK |
242 | if (verbose) { |
243 | printf(_("Flags of %s set as "), name); | |
244 | print_flags(stdout, flags, 0); | |
245 | printf("\n"); | |
246 | } | |
247 | if (!S_ISDIR(st.st_mode)) | |
248 | flags &= ~EXT2_DIRSYNC_FL; | |
249 | if (fsetflags(name, flags) == -1) { | |
250 | if (!silent) { | |
251 | com_err(program_name, errno, | |
e68594d2 TT |
252 | _("while setting flags on %s"), |
253 | name); | |
e68594d2 | 254 | } |
7c8da6e3 | 255 | return -1; |
3839e657 TT |
256 | } |
257 | } | |
e1a0a3e3 | 258 | if (set_version) { |
3839e657 | 259 | if (verbose) |
d9c56d3c | 260 | printf (_("Version of %s set as %lu\n"), name, version); |
e68594d2 TT |
261 | if (fsetversion (name, version) == -1) { |
262 | if (!silent) | |
263 | com_err (program_name, errno, | |
264 | _("while setting version on %s"), | |
265 | name); | |
266 | return -1; | |
267 | } | |
3839e657 | 268 | } |
3627e838 LX |
269 | if (set_project) { |
270 | if (verbose) | |
25040c04 | 271 | printf (_("Project of %s set as %lu\n"), name, project); |
3627e838 LX |
272 | if (fsetproject (name, project) == -1) { |
273 | if (!silent) | |
274 | com_err (program_name, errno, | |
275 | _("while setting project on %s"), | |
276 | name); | |
277 | return -1; | |
278 | } | |
279 | ||
280 | } | |
3839e657 | 281 | if (S_ISDIR(st.st_mode) && recursive) |
e68594d2 TT |
282 | return iterate_on_dir (name, chattr_dir_proc, NULL); |
283 | return 0; | |
3839e657 TT |
284 | } |
285 | ||
e1a0a3e3 | 286 | static int chattr_dir_proc (const char * dir_name, struct dirent * de, |
54434927 | 287 | void * private EXT2FS_ATTR((unused))) |
3839e657 | 288 | { |
e68594d2 TT |
289 | int ret = 0; |
290 | ||
e1a0a3e3 | 291 | if (strcmp (de->d_name, ".") && strcmp (de->d_name, "..")) { |
a418d3ad TT |
292 | char *path; |
293 | ||
294 | path = malloc(strlen (dir_name) + 1 + strlen (de->d_name) + 1); | |
642935c0 | 295 | if (!path) { |
45ff69ff AD |
296 | fprintf(stderr, "%s", |
297 | _("Couldn't allocate path variable " | |
298 | "in chattr_dir_proc")); | |
e68594d2 | 299 | return -1; |
642935c0 | 300 | } |
e68594d2 | 301 | sprintf(path, "%s/%s", dir_name, de->d_name); |
2d328bb7 | 302 | ret = change_attributes(path); |
a418d3ad | 303 | free(path); |
3839e657 | 304 | } |
e68594d2 | 305 | return ret; |
3839e657 TT |
306 | } |
307 | ||
00e5433e | 308 | int main (int argc, char ** argv) |
3839e657 TT |
309 | { |
310 | int i, j; | |
311 | int end_arg = 0; | |
e68594d2 | 312 | int err, retval = 0; |
3839e657 | 313 | |
d9c56d3c TT |
314 | #ifdef ENABLE_NLS |
315 | setlocale(LC_MESSAGES, ""); | |
14308a53 | 316 | setlocale(LC_CTYPE, ""); |
d9c56d3c TT |
317 | bindtextdomain(NLS_CAT_NAME, LOCALEDIR); |
318 | textdomain(NLS_CAT_NAME); | |
9d4507c5 | 319 | set_com_err_gettext(gettext); |
d9c56d3c | 320 | #endif |
3839e657 TT |
321 | if (argc && *argv) |
322 | program_name = *argv; | |
323 | i = 1; | |
e1a0a3e3 | 324 | while (i < argc && !end_arg) { |
2293a4d5 TT |
325 | /* '--' arg should end option processing */ |
326 | if (strcmp(argv[i], "--") == 0) { | |
327 | i++; | |
328 | end_arg = 1; | |
329 | } else if (decode_arg (&i, argc, argv) == EOF) | |
3839e657 TT |
330 | end_arg = 1; |
331 | else | |
332 | i++; | |
333 | } | |
334 | if (i >= argc) | |
335 | usage (); | |
e1a0a3e3 | 336 | if (set && (add || rem)) { |
54434927 | 337 | fputs(_("= is incompatible with - and +\n"), stderr); |
3839e657 TT |
338 | exit (1); |
339 | } | |
e1a0a3e3 | 340 | if ((rf & af) != 0) { |
54434927 | 341 | fputs("Can't both set and unset same flag.\n", stderr); |
e1a0a3e3 TT |
342 | exit (1); |
343 | } | |
3627e838 | 344 | if (!(add || rem || set || set_version || set_project )) { |
54434927 | 345 | fputs(_("Must use '-v', =, - or +\n"), stderr); |
3839e657 TT |
346 | exit (1); |
347 | } | |
a88fa0c0 | 348 | if (verbose) |
0f8973fb TT |
349 | fprintf (stderr, "chattr %s (%s)\n", |
350 | E2FSPROGS_VERSION, E2FSPROGS_DATE); | |
e68594d2 | 351 | for (j = i; j < argc; j++) { |
2d328bb7 | 352 | err = change_attributes (argv[j]); |
e68594d2 TT |
353 | if (err) |
354 | retval = 1; | |
355 | } | |
356 | exit(retval); | |
3839e657 | 357 | } |