2 * chattr.c - Change file attributes on an ext2 file system
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)
8 * This file can be redistributed under the terms of the GNU General
15 * 93/11/13 - Replace stat() calls by lstat() to avoid loops
16 * 94/02/27 - Integrated in Ted's distribution
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)
21 #define _LARGEFILE64_SOURCE
23 #include <sys/types.h>
33 #include <sys/param.h>
35 #include "ext2fs/ext2_fs.h"
38 #define EXT2FS_ATTR(x) __attribute__(x)
40 #define EXT2FS_ATTR(x)
43 #ifndef S_ISLNK /* So we can compile even with gcc-warn */
45 # define S_ISLNK(mode) __S_ISTYPE((mode), __S_IFLNK)
47 # define S_ISLNK(mode) 0
51 #include "et/com_err.h"
54 #include "../version.h"
55 #include "nls-enable.h"
57 static const char * program_name = "chattr";
62 static int set_version;
64 static unsigned long version;
70 static unsigned long af;
71 static unsigned long rf;
72 static unsigned long sf;
74 #ifdef _LFS64_LARGEFILE
76 #define STRUCT_STAT struct stat64
79 #define STRUCT_STAT struct stat
82 static void usage(void)
85 _("Usage: %s [-RVf] [-+=AacDdeijsSu] [-v version] files...\n"),
95 static const struct flags_char flags_array[] = {
96 { EXT2_NOATIME_FL, 'A' },
97 { EXT2_SYNC_FL, 'S' },
98 { EXT2_DIRSYNC_FL, 'D' },
99 { EXT2_APPEND_FL, 'a' },
100 { EXT2_COMPR_FL, 'c' },
101 { EXT2_NODUMP_FL, 'd' },
102 { EXT4_EXTENTS_FL, 'e'},
103 { EXT2_IMMUTABLE_FL, 'i' },
104 { EXT3_JOURNAL_DATA_FL, 'j' },
105 { EXT2_SECRM_FL, 's' },
106 { EXT2_UNRM_FL, 'u' },
107 { EXT2_NOTAIL_FL, 't' },
108 { EXT2_TOPDIR_FL, 'T' },
112 static unsigned long get_flag(char c)
114 const struct flags_char *fp;
116 for (fp = flags_array; fp->flag != 0; fp++) {
117 if (fp->optchar == c)
124 static int decode_arg (int * i, int argc, char ** argv)
133 for (p = &argv[*i][1]; *p; p++) {
150 version = strtol (argv[*i], &tmp, 0);
152 com_err (program_name, 0,
153 _("bad version - %s\n"),
160 if ((fl = get_flag(*p)) == 0)
168 for (p = &argv[*i][1]; *p; p++) {
169 if ((fl = get_flag(*p)) == 0)
176 for (p = &argv[*i][1]; *p; p++) {
177 if ((fl = get_flag(*p)) == 0)
189 static int chattr_dir_proc(const char *, struct dirent *, void *);
191 static int change_attributes(const char * name)
197 if (LSTAT (name, &st) == -1) {
199 com_err (program_name, errno,
200 _("while trying to stat %s"), name);
204 if (fgetflags(name, &flags) == -1) {
206 com_err(program_name, errno,
207 _("while reading flags on %s"), name);
210 if (flags & EXT4_EXTENTS_FL)
213 if (extent_file && !(sf & EXT4_EXTENTS_FL)) {
215 com_err(program_name, 0,
216 _("Clearing extent flag not supported on %s"),
221 printf (_("Flags of %s set as "), name);
222 print_flags (stdout, sf, 0);
225 if (fsetflags (name, sf) == -1)
232 if (extent_file && !(flags & EXT4_EXTENTS_FL)) {
234 com_err(program_name, 0,
235 _("Clearing extent flag not supported on %s"),
240 printf(_("Flags of %s set as "), name);
241 print_flags(stdout, flags, 0);
244 if (!S_ISDIR(st.st_mode))
245 flags &= ~EXT2_DIRSYNC_FL;
246 if (fsetflags(name, flags) == -1) {
248 com_err(program_name, errno,
249 _("while setting flags on %s"),
257 printf (_("Version of %s set as %lu\n"), name, version);
258 if (fsetversion (name, version) == -1) {
260 com_err (program_name, errno,
261 _("while setting version on %s"),
266 if (S_ISDIR(st.st_mode) && recursive)
267 return iterate_on_dir (name, chattr_dir_proc, NULL);
271 static int chattr_dir_proc (const char * dir_name, struct dirent * de,
272 void * private EXT2FS_ATTR((unused)))
276 if (strcmp (de->d_name, ".") && strcmp (de->d_name, "..")) {
279 path = malloc(strlen (dir_name) + 1 + strlen (de->d_name) + 1);
281 fprintf(stderr, _("Couldn't allocate path variable "
282 "in chattr_dir_proc"));
285 sprintf(path, "%s/%s", dir_name, de->d_name);
286 ret = change_attributes(path);
292 int main (int argc, char ** argv)
299 setlocale(LC_MESSAGES, "");
300 setlocale(LC_CTYPE, "");
301 bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
302 textdomain(NLS_CAT_NAME);
305 program_name = *argv;
307 while (i < argc && !end_arg) {
308 /* '--' arg should end option processing */
309 if (strcmp(argv[i], "--") == 0) {
312 } else if (decode_arg (&i, argc, argv) == EOF)
319 if (set && (add || rem)) {
320 fputs(_("= is incompatible with - and +\n"), stderr);
323 if ((rf & af) != 0) {
324 fputs("Can't both set and unset same flag.\n", stderr);
327 if (!(add || rem || set || set_version)) {
328 fputs(_("Must use '-v', =, - or +\n"), stderr);
332 fprintf (stderr, "chattr %s (%s)\n",
333 E2FSPROGS_VERSION, E2FSPROGS_DATE);
334 for (j = i; j < argc; j++) {
335 err = change_attributes (argv[j]);