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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 | |
a418d3ad | 23 | #include <sys/types.h> |
3839e657 TT |
24 | #include <dirent.h> |
25 | #include <fcntl.h> | |
3839e657 TT |
26 | #include <stdio.h> |
27 | #include <stdlib.h> | |
28 | #include <unistd.h> | |
19c78dc0 | 29 | #include <string.h> |
a418d3ad TT |
30 | #ifdef HAVE_ERRNO_H |
31 | #include <errno.h> | |
32 | #endif | |
3839e657 TT |
33 | #include <sys/param.h> |
34 | #include <sys/stat.h> | |
54c637d4 | 35 | #include "ext2fs/ext2_fs.h" |
3839e657 | 36 | |
54434927 TT |
37 | #ifdef __GNUC__ |
38 | #define EXT2FS_ATTR(x) __attribute__(x) | |
39 | #else | |
40 | #define EXT2FS_ATTR(x) | |
41 | #endif | |
42 | ||
36caf25f TT |
43 | #ifndef S_ISLNK /* So we can compile even with gcc-warn */ |
44 | # ifdef __S_IFLNK | |
45 | # define S_ISLNK(mode) __S_ISTYPE((mode), __S_IFLNK) | |
46 | # else | |
47 | # define S_ISLNK(mode) 0 | |
48 | # endif | |
49 | #endif | |
50 | ||
3839e657 TT |
51 | #include "et/com_err.h" |
52 | #include "e2p/e2p.h" | |
53 | ||
54 | #include "../version.h" | |
d9c56d3c | 55 | #include "nls-enable.h" |
3839e657 | 56 | |
e1a0a3e3 | 57 | static const char * program_name = "chattr"; |
3839e657 | 58 | |
9a718849 TT |
59 | static int add; |
60 | static int rem; | |
61 | static int set; | |
62 | static int set_version; | |
3839e657 | 63 | |
e1a0a3e3 | 64 | static unsigned long version; |
3839e657 | 65 | |
9a718849 TT |
66 | static int recursive; |
67 | static int verbose; | |
e68594d2 | 68 | static int silent; |
3839e657 | 69 | |
e1a0a3e3 TT |
70 | static unsigned long af; |
71 | static unsigned long rf; | |
72 | static unsigned long sf; | |
3839e657 | 73 | |
b705640a TT |
74 | #ifdef _LFS64_LARGEFILE |
75 | #define LSTAT lstat64 | |
76 | #define STRUCT_STAT struct stat64 | |
77 | #else | |
78 | #define LSTAT lstat | |
79 | #define STRUCT_STAT struct stat | |
80 | #endif | |
81 | ||
642935c0 | 82 | static void usage(void) |
3839e657 | 83 | { |
e68594d2 TT |
84 | fprintf(stderr, |
85 | _("Usage: %s [-RVf] [-+=AacDdijsSu] [-v version] files...\n"), | |
642935c0 TT |
86 | program_name); |
87 | exit(1); | |
3839e657 TT |
88 | } |
89 | ||
9a718849 TT |
90 | struct flags_char { |
91 | unsigned long flag; | |
92 | char optchar; | |
93 | }; | |
94 | ||
95 | static const struct flags_char flags_array[] = { | |
96 | { EXT2_NOATIME_FL, 'A' }, | |
97 | { EXT2_SYNC_FL, 'S' }, | |
88372d5c | 98 | { EXT2_DIRSYNC_FL, 'D' }, |
9a718849 TT |
99 | { EXT2_APPEND_FL, 'a' }, |
100 | { EXT2_COMPR_FL, 'c' }, | |
101 | { EXT2_NODUMP_FL, 'd' }, | |
102 | { EXT2_IMMUTABLE_FL, 'i' }, | |
103 | { EXT3_JOURNAL_DATA_FL, 'j' }, | |
104 | { EXT2_SECRM_FL, 's' }, | |
105 | { EXT2_UNRM_FL, 'u' }, | |
b3f5b4c2 | 106 | { EXT2_NOTAIL_FL, 't' }, |
15f9011a | 107 | { EXT2_TOPDIR_FL, 'T' }, |
9a718849 TT |
108 | { 0, 0 } |
109 | }; | |
110 | ||
111 | static unsigned long get_flag(char c) | |
112 | { | |
113 | const struct flags_char *fp; | |
efc6f628 | 114 | |
9a718849 TT |
115 | for (fp = flags_array; fp->flag != 0; fp++) { |
116 | if (fp->optchar == c) | |
117 | return fp->flag; | |
118 | } | |
119 | return 0; | |
120 | } | |
121 | ||
122 | ||
3839e657 TT |
123 | static int decode_arg (int * i, int argc, char ** argv) |
124 | { | |
125 | char * p; | |
126 | char * tmp; | |
9a718849 | 127 | unsigned long fl; |
3839e657 TT |
128 | |
129 | switch (argv[*i][0]) | |
130 | { | |
131 | case '-': | |
9a718849 TT |
132 | for (p = &argv[*i][1]; *p; p++) { |
133 | if (*p == 'R') { | |
3839e657 | 134 | recursive = 1; |
9a718849 TT |
135 | continue; |
136 | } | |
137 | if (*p == 'V') { | |
3839e657 | 138 | verbose = 1; |
9a718849 TT |
139 | continue; |
140 | } | |
e68594d2 TT |
141 | if (*p == 'f') { |
142 | silent = 1; | |
143 | continue; | |
144 | } | |
9a718849 | 145 | if (*p == 'v') { |
1e3472c5 | 146 | (*i)++; |
3839e657 TT |
147 | if (*i >= argc) |
148 | usage (); | |
3839e657 | 149 | version = strtol (argv[*i], &tmp, 0); |
9a718849 | 150 | if (*tmp) { |
3839e657 | 151 | com_err (program_name, 0, |
e68594d2 | 152 | _("bad version - %s\n"), |
9a718849 | 153 | argv[*i]); |
3839e657 TT |
154 | usage (); |
155 | } | |
156 | set_version = 1; | |
9a718849 | 157 | continue; |
3839e657 | 158 | } |
9a718849 TT |
159 | if ((fl = get_flag(*p)) == 0) |
160 | usage(); | |
161 | rf |= fl; | |
162 | rem = 1; | |
163 | } | |
3839e657 TT |
164 | break; |
165 | case '+': | |
166 | add = 1; | |
9a718849 TT |
167 | for (p = &argv[*i][1]; *p; p++) { |
168 | if ((fl = get_flag(*p)) == 0) | |
169 | usage(); | |
170 | af |= fl; | |
171 | } | |
3839e657 TT |
172 | break; |
173 | case '=': | |
174 | set = 1; | |
9a718849 TT |
175 | for (p = &argv[*i][1]; *p; p++) { |
176 | if ((fl = get_flag(*p)) == 0) | |
177 | usage(); | |
178 | sf |= fl; | |
179 | } | |
3839e657 TT |
180 | break; |
181 | default: | |
182 | return EOF; | |
183 | break; | |
184 | } | |
185 | return 1; | |
186 | } | |
187 | ||
2d328bb7 | 188 | static int chattr_dir_proc(const char *, struct dirent *, void *); |
3839e657 | 189 | |
2d328bb7 | 190 | static int change_attributes(const char * name) |
3839e657 TT |
191 | { |
192 | unsigned long flags; | |
b705640a | 193 | STRUCT_STAT st; |
3839e657 | 194 | |
b705640a | 195 | if (LSTAT (name, &st) == -1) { |
e68594d2 TT |
196 | if (!silent) |
197 | com_err (program_name, errno, | |
198 | _("while trying to stat %s"), name); | |
199 | return -1; | |
3839e657 | 200 | } |
e1a0a3e3 TT |
201 | |
202 | if (set) { | |
203 | if (verbose) { | |
d9c56d3c | 204 | printf (_("Flags of %s set as "), name); |
f3db3566 | 205 | print_flags (stdout, sf, 0); |
3839e657 TT |
206 | printf ("\n"); |
207 | } | |
208 | if (fsetflags (name, sf) == -1) | |
209 | perror (name); | |
e1a0a3e3 | 210 | } else { |
e68594d2 TT |
211 | if (fgetflags (name, &flags) == -1) { |
212 | if (!silent) | |
213 | com_err (program_name, errno, | |
214 | _("while reading flags on %s"), name); | |
215 | return -1; | |
216 | } else { | |
3839e657 TT |
217 | if (rem) |
218 | flags &= ~rf; | |
219 | if (add) | |
220 | flags |= af; | |
e1a0a3e3 | 221 | if (verbose) { |
d9c56d3c | 222 | printf (_("Flags of %s set as "), name); |
f3db3566 | 223 | print_flags (stdout, flags, 0); |
3839e657 TT |
224 | printf ("\n"); |
225 | } | |
88372d5c TT |
226 | if (!S_ISDIR(st.st_mode)) |
227 | flags &= ~EXT2_DIRSYNC_FL; | |
e68594d2 TT |
228 | if (fsetflags (name, flags) == -1) { |
229 | if (!silent) | |
230 | com_err(program_name, errno, | |
231 | _("while setting flags on %s"), | |
232 | name); | |
233 | return -1; | |
234 | } | |
3839e657 TT |
235 | } |
236 | } | |
e1a0a3e3 | 237 | if (set_version) { |
3839e657 | 238 | if (verbose) |
d9c56d3c | 239 | printf (_("Version of %s set as %lu\n"), name, version); |
e68594d2 TT |
240 | if (fsetversion (name, version) == -1) { |
241 | if (!silent) | |
242 | com_err (program_name, errno, | |
243 | _("while setting version on %s"), | |
244 | name); | |
245 | return -1; | |
246 | } | |
3839e657 TT |
247 | } |
248 | if (S_ISDIR(st.st_mode) && recursive) | |
e68594d2 TT |
249 | return iterate_on_dir (name, chattr_dir_proc, NULL); |
250 | return 0; | |
3839e657 TT |
251 | } |
252 | ||
e1a0a3e3 | 253 | static int chattr_dir_proc (const char * dir_name, struct dirent * de, |
54434927 | 254 | void * private EXT2FS_ATTR((unused))) |
3839e657 | 255 | { |
e68594d2 TT |
256 | int ret = 0; |
257 | ||
e1a0a3e3 | 258 | if (strcmp (de->d_name, ".") && strcmp (de->d_name, "..")) { |
a418d3ad TT |
259 | char *path; |
260 | ||
261 | path = malloc(strlen (dir_name) + 1 + strlen (de->d_name) + 1); | |
642935c0 TT |
262 | if (!path) { |
263 | fprintf(stderr, _("Couldn't allocate path variable " | |
264 | "in chattr_dir_proc")); | |
e68594d2 | 265 | return -1; |
642935c0 | 266 | } |
e68594d2 | 267 | sprintf(path, "%s/%s", dir_name, de->d_name); |
2d328bb7 | 268 | ret = change_attributes(path); |
a418d3ad | 269 | free(path); |
3839e657 | 270 | } |
e68594d2 | 271 | return ret; |
3839e657 TT |
272 | } |
273 | ||
00e5433e | 274 | int main (int argc, char ** argv) |
3839e657 TT |
275 | { |
276 | int i, j; | |
277 | int end_arg = 0; | |
e68594d2 | 278 | int err, retval = 0; |
3839e657 | 279 | |
d9c56d3c TT |
280 | #ifdef ENABLE_NLS |
281 | setlocale(LC_MESSAGES, ""); | |
14308a53 | 282 | setlocale(LC_CTYPE, ""); |
d9c56d3c TT |
283 | bindtextdomain(NLS_CAT_NAME, LOCALEDIR); |
284 | textdomain(NLS_CAT_NAME); | |
285 | #endif | |
3839e657 TT |
286 | if (argc && *argv) |
287 | program_name = *argv; | |
288 | i = 1; | |
e1a0a3e3 | 289 | while (i < argc && !end_arg) { |
2293a4d5 TT |
290 | /* '--' arg should end option processing */ |
291 | if (strcmp(argv[i], "--") == 0) { | |
292 | i++; | |
293 | end_arg = 1; | |
294 | } else if (decode_arg (&i, argc, argv) == EOF) | |
3839e657 TT |
295 | end_arg = 1; |
296 | else | |
297 | i++; | |
298 | } | |
299 | if (i >= argc) | |
300 | usage (); | |
e1a0a3e3 | 301 | if (set && (add || rem)) { |
54434927 | 302 | fputs(_("= is incompatible with - and +\n"), stderr); |
3839e657 TT |
303 | exit (1); |
304 | } | |
e1a0a3e3 | 305 | if ((rf & af) != 0) { |
54434927 | 306 | fputs("Can't both set and unset same flag.\n", stderr); |
e1a0a3e3 TT |
307 | exit (1); |
308 | } | |
309 | if (!(add || rem || set || set_version)) { | |
54434927 | 310 | fputs(_("Must use '-v', =, - or +\n"), stderr); |
3839e657 TT |
311 | exit (1); |
312 | } | |
a88fa0c0 | 313 | if (verbose) |
0f8973fb TT |
314 | fprintf (stderr, "chattr %s (%s)\n", |
315 | E2FSPROGS_VERSION, E2FSPROGS_DATE); | |
e68594d2 | 316 | for (j = i; j < argc; j++) { |
2d328bb7 | 317 | err = change_attributes (argv[j]); |
e68594d2 TT |
318 | if (err) |
319 | retval = 1; | |
320 | } | |
321 | exit(retval); | |
3839e657 | 322 | } |