aboutsummaryrefslogtreecommitdiff
path: root/e2fsprogs/chattr.c
diff options
context:
space:
mode:
authorGravatar Mike Frysinger <vapier@gentoo.org>2005-04-24 05:07:59 +0000
committerGravatar Mike Frysinger <vapier@gentoo.org>2005-04-24 05:07:59 +0000
commitd89e629e52c3b525424be958de238ed1dc5a0361 (patch)
tree9aec1ca3d0a479bef39bd63c14f4292061d34675 /e2fsprogs/chattr.c
parent408ae211ceaf33bf758207cd5329903c39e8880c (diff)
downloadbusybox-d89e629e52c3b525424be958de238ed1dc5a0361.tar.gz
busybox-d89e629e52c3b525424be958de238ed1dc5a0361.tar.bz2
add new subdir for e2fsprogs
Diffstat (limited to 'e2fsprogs/chattr.c')
-rw-r--r--e2fsprogs/chattr.c305
1 files changed, 305 insertions, 0 deletions
diff --git a/e2fsprogs/chattr.c b/e2fsprogs/chattr.c
new file mode 100644
index 000000000..7abc83176
--- /dev/null
+++ b/e2fsprogs/chattr.c
@@ -0,0 +1,305 @@
+/*
+ * chattr.c - Change file attributes on an ext2 file system
+ *
+ * Copyright (C) 1993, 1994 Remy Card <card@masi.ibp.fr>
+ * Laboratoire MASI, Institut Blaise Pascal
+ * Universite Pierre et Marie Curie (Paris VI)
+ *
+ * This file can be redistributed under the terms of the GNU General
+ * Public License
+ */
+
+/*
+ * History:
+ * 93/10/30 - Creation
+ * 93/11/13 - Replace stat() calls by lstat() to avoid loops
+ * 94/02/27 - Integrated in Ted's distribution
+ * 98/12/29 - Ignore symlinks when working recursively (G M Sipe)
+ * 98/12/29 - Display version info only when -V specified (G M Sipe)
+ */
+
+#include <sys/types.h>
+#include <dirent.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <errno.h>
+#include <sys/param.h>
+#include <sys/stat.h>
+#include <ext2fs/ext2_fs.h>
+
+#ifdef __GNUC__
+#define EXT2FS_ATTR(x) __attribute__(x)
+#else
+#define EXT2FS_ATTR(x)
+#endif
+
+#ifndef S_ISLNK /* So we can compile even with gcc-warn */
+# ifdef __S_IFLNK
+# define S_ISLNK(mode) __S_ISTYPE((mode), __S_IFLNK)
+# else
+# define S_ISLNK(mode) 0
+# endif
+#endif
+
+#include "e2fsbb.h"
+#include "e2p/e2p.h"
+
+static int add;
+static int rem;
+static int set;
+static int set_version;
+
+static unsigned long version;
+
+static int recursive;
+static int verbose;
+
+static unsigned long af;
+static unsigned long rf;
+static unsigned long sf;
+
+#ifdef _LFS64_LARGEFILE
+#define LSTAT lstat64
+#define STRUCT_STAT struct stat64
+#else
+#define LSTAT lstat
+#define STRUCT_STAT struct stat
+#endif
+
+#if 0
+static void fatal_error(const char * fmt_string, int errcode)
+{
+ fprintf (stderr, fmt_string, program_name);
+ exit (errcode);
+}
+
+#define usage() fatal_error(_("usage: %s [-RV] [-+=AacDdijsSu] [-v version] files...\n"), \
+ 1)
+#endif
+
+struct flags_char {
+ unsigned long flag;
+ char optchar;
+};
+
+static const struct flags_char flags_array[] = {
+ { EXT2_NOATIME_FL, 'A' },
+ { EXT2_SYNC_FL, 'S' },
+ { EXT2_DIRSYNC_FL, 'D' },
+ { EXT2_APPEND_FL, 'a' },
+ { EXT2_COMPR_FL, 'c' },
+ { EXT2_NODUMP_FL, 'd' },
+ { EXT2_IMMUTABLE_FL, 'i' },
+ { EXT3_JOURNAL_DATA_FL, 'j' },
+ { EXT2_SECRM_FL, 's' },
+ { EXT2_UNRM_FL, 'u' },
+ { EXT2_NOTAIL_FL, 't' },
+ { EXT2_TOPDIR_FL, 'T' },
+ { 0, 0 }
+};
+
+static unsigned long get_flag(char c)
+{
+ const struct flags_char *fp;
+
+ for (fp = flags_array; fp->flag != 0; fp++) {
+ if (fp->optchar == c)
+ return fp->flag;
+ }
+ return 0;
+}
+
+
+static int decode_arg (int * i, int argc, char ** argv)
+{
+ char * p;
+ char * tmp;
+ unsigned long fl;
+
+ switch (argv[*i][0])
+ {
+ case '-':
+ for (p = &argv[*i][1]; *p; p++) {
+ if (*p == 'R') {
+ recursive = 1;
+ continue;
+ }
+ if (*p == 'V') {
+ verbose = 1;
+ continue;
+ }
+ if (*p == 'v') {
+ (*i)++;
+ if (*i >= argc)
+ usage ();
+ version = strtol (argv[*i], &tmp, 0);
+ if (*tmp) {
+ com_err (program_name, 0,
+ _("bad version - %s\n"),
+ argv[*i]);
+ usage ();
+ }
+ set_version = 1;
+ continue;
+ }
+ if ((fl = get_flag(*p)) == 0)
+ usage();
+ rf |= fl;
+ rem = 1;
+ }
+ break;
+ case '+':
+ add = 1;
+ for (p = &argv[*i][1]; *p; p++) {
+ if ((fl = get_flag(*p)) == 0)
+ usage();
+ af |= fl;
+ }
+ break;
+ case '=':
+ set = 1;
+ for (p = &argv[*i][1]; *p; p++) {
+ if ((fl = get_flag(*p)) == 0)
+ usage();
+ sf |= fl;
+ }
+ break;
+ default:
+ return EOF;
+ break;
+ }
+ return 1;
+}
+
+static int chattr_dir_proc (const char *, struct dirent *, void *);
+
+static void change_attributes (const char * name)
+{
+ unsigned long flags;
+ STRUCT_STAT st;
+
+ if (LSTAT (name, &st) == -1) {
+ com_err (program_name, errno, _("while trying to stat %s"),
+ name);
+ return;
+ }
+ if (S_ISLNK(st.st_mode) && recursive)
+ return;
+
+ /* Don't try to open device files, fifos etc. We probably
+ ought to display an error if the file was explicitly given
+ on the command line (whether or not recursive was
+ requested). */
+ if (!S_ISREG(st.st_mode) && !S_ISLNK(st.st_mode) &&
+ !S_ISDIR(st.st_mode))
+ return;
+
+ if (set) {
+ if (verbose) {
+ printf (_("Flags of %s set as "), name);
+ print_flags (stdout, sf, 0);
+ printf ("\n");
+ }
+ if (fsetflags (name, sf) == -1)
+ perror (name);
+ } else {
+ if (fgetflags (name, &flags) == -1)
+ com_err (program_name, errno,
+ _("while reading flags on %s"), name);
+ else {
+ if (rem)
+ flags &= ~rf;
+ if (add)
+ flags |= af;
+ if (verbose) {
+ printf (_("Flags of %s set as "), name);
+ print_flags (stdout, flags, 0);
+ printf ("\n");
+ }
+ if (!S_ISDIR(st.st_mode))
+ flags &= ~EXT2_DIRSYNC_FL;
+ if (fsetflags (name, flags) == -1)
+ com_err (program_name, errno,
+ _("while setting flags on %s"), name);
+ }
+ }
+ if (set_version) {
+ if (verbose)
+ printf (_("Version of %s set as %lu\n"), name, version);
+ if (fsetversion (name, version) == -1)
+ com_err (program_name, errno,
+ _("while setting version on %s"), name);
+ }
+ if (S_ISDIR(st.st_mode) && recursive)
+ iterate_on_dir (name, chattr_dir_proc, NULL);
+}
+
+static int chattr_dir_proc (const char * dir_name, struct dirent * de,
+ void * private EXT2FS_ATTR((unused)))
+{
+ if (strcmp (de->d_name, ".") && strcmp (de->d_name, "..")) {
+ char *path;
+
+ path = malloc(strlen (dir_name) + 1 + strlen (de->d_name) + 1);
+ if (!path)
+ fatal_error(_("Couldn't allocate path variable "
+ "in chattr_dir_proc"), 1);
+ sprintf (path, "%s/%s", dir_name, de->d_name);
+ change_attributes (path);
+ free(path);
+ }
+ return 0;
+}
+
+int chattr_main (int argc, char ** argv)
+{
+ int i, j;
+ int end_arg = 0;
+
+#ifdef ENABLE_NLS
+ setlocale(LC_MESSAGES, "");
+ setlocale(LC_CTYPE, "");
+ bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
+ textdomain(NLS_CAT_NAME);
+#endif
+#if 0
+ if (argc && *argv)
+ program_name = *argv;
+#endif
+ i = 1;
+ while (i < argc && !end_arg) {
+ /* '--' arg should end option processing */
+ if (strcmp(argv[i], "--") == 0) {
+ i++;
+ end_arg = 1;
+ } else if (decode_arg (&i, argc, argv) == EOF)
+ end_arg = 1;
+ else
+ i++;
+ }
+ if (i >= argc)
+ usage ();
+ if (set && (add || rem)) {
+ fputs(_("= is incompatible with - and +\n"), stderr);
+ exit (1);
+ }
+ if ((rf & af) != 0) {
+ fputs("Can't both set and unset same flag.\n", stderr);
+ exit (1);
+ }
+ if (!(add || rem || set || set_version)) {
+ fputs(_("Must use '-v', =, - or +\n"), stderr);
+ exit (1);
+ }
+#if 0
+ if (verbose)
+ fprintf (stderr, "chattr %s (%s)\n",
+ E2FSPROGS_VERSION, E2FSPROGS_DATE);
+#endif
+ for (j = i; j < argc; j++)
+ change_attributes (argv[j]);
+ exit(0);
+}