You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
359 lines
7.1 KiB
359 lines
7.1 KiB
/*
|
|
* 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)
|
|
*/
|
|
|
|
#define _LARGEFILE64_SOURCE
|
|
|
|
#include "config.h"
|
|
#include <sys/types.h>
|
|
#include <dirent.h>
|
|
#include <fcntl.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
#include <string.h>
|
|
#ifdef HAVE_ERRNO_H
|
|
#include <errno.h>
|
|
#endif
|
|
#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 "et/com_err.h"
|
|
#include "e2p/e2p.h"
|
|
#include "support/nls-enable.h"
|
|
|
|
#include "../version.h"
|
|
|
|
static const char * program_name = "chattr";
|
|
|
|
static int add;
|
|
static int rem;
|
|
static int set;
|
|
static int set_version;
|
|
|
|
static unsigned long version;
|
|
|
|
static int set_project;
|
|
static unsigned long project;
|
|
|
|
static int recursive;
|
|
static int verbose;
|
|
static int silent;
|
|
|
|
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
|
|
|
|
static void usage(void)
|
|
{
|
|
fprintf(stderr,
|
|
_("Usage: %s [-pRVf] [-+=aAcCdDeijPsStTuF] [-v version] files...\n"),
|
|
program_name);
|
|
exit(1);
|
|
}
|
|
|
|
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' },
|
|
{ EXT4_EXTENTS_FL, 'e'},
|
|
{ EXT2_IMMUTABLE_FL, 'i' },
|
|
{ EXT3_JOURNAL_DATA_FL, 'j' },
|
|
{ EXT4_PROJINHERIT_FL, 'P' },
|
|
{ EXT2_SECRM_FL, 's' },
|
|
{ EXT2_UNRM_FL, 'u' },
|
|
{ EXT2_NOTAIL_FL, 't' },
|
|
{ EXT2_TOPDIR_FL, 'T' },
|
|
{ FS_NOCOW_FL, 'C' },
|
|
{ EXT4_CASEFOLD_FL, 'F' },
|
|
{ 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 == 'f') {
|
|
silent = 1;
|
|
continue;
|
|
}
|
|
if (*p == 'p') {
|
|
(*i)++;
|
|
if (*i >= argc)
|
|
usage ();
|
|
project = strtol (argv[*i], &tmp, 0);
|
|
if (*tmp) {
|
|
com_err (program_name, 0,
|
|
_("bad project - %s\n"),
|
|
argv[*i]);
|
|
usage ();
|
|
}
|
|
set_project = 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 int change_attributes(const char * name)
|
|
{
|
|
unsigned long flags;
|
|
STRUCT_STAT st;
|
|
|
|
if (LSTAT (name, &st) == -1) {
|
|
if (!silent)
|
|
com_err (program_name, errno,
|
|
_("while trying to stat %s"), name);
|
|
return -1;
|
|
}
|
|
|
|
if (fgetflags(name, &flags) == -1) {
|
|
if (!silent)
|
|
com_err(program_name, errno,
|
|
_("while reading flags on %s"), name);
|
|
return -1;
|
|
}
|
|
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 (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) {
|
|
if (!silent) {
|
|
com_err(program_name, errno,
|
|
_("while setting flags on %s"),
|
|
name);
|
|
}
|
|
return -1;
|
|
}
|
|
}
|
|
if (set_version) {
|
|
if (verbose)
|
|
printf (_("Version of %s set as %lu\n"), name, version);
|
|
if (fsetversion (name, version) == -1) {
|
|
if (!silent)
|
|
com_err (program_name, errno,
|
|
_("while setting version on %s"),
|
|
name);
|
|
return -1;
|
|
}
|
|
}
|
|
if (set_project) {
|
|
if (verbose)
|
|
printf (_("Project of %s set as %lu\n"), name, project);
|
|
if (fsetproject (name, project) == -1) {
|
|
if (!silent)
|
|
com_err (program_name, errno,
|
|
_("while setting project on %s"),
|
|
name);
|
|
return -1;
|
|
}
|
|
|
|
}
|
|
if (S_ISDIR(st.st_mode) && recursive)
|
|
return iterate_on_dir (name, chattr_dir_proc, NULL);
|
|
return 0;
|
|
}
|
|
|
|
static int chattr_dir_proc (const char * dir_name, struct dirent * de,
|
|
void * private EXT2FS_ATTR((unused)))
|
|
{
|
|
int ret = 0;
|
|
|
|
if (strcmp (de->d_name, ".") && strcmp (de->d_name, "..")) {
|
|
char *path;
|
|
|
|
path = malloc(strlen (dir_name) + 1 + strlen (de->d_name) + 1);
|
|
if (!path) {
|
|
fprintf(stderr, "%s",
|
|
_("Couldn't allocate path variable "
|
|
"in chattr_dir_proc"));
|
|
return -1;
|
|
}
|
|
sprintf(path, "%s/%s", dir_name, de->d_name);
|
|
ret = change_attributes(path);
|
|
free(path);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
int main (int argc, char ** argv)
|
|
{
|
|
int i, j;
|
|
int end_arg = 0;
|
|
int err, retval = 0;
|
|
|
|
#ifdef ENABLE_NLS
|
|
setlocale(LC_MESSAGES, "");
|
|
setlocale(LC_CTYPE, "");
|
|
bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
|
|
textdomain(NLS_CAT_NAME);
|
|
set_com_err_gettext(gettext);
|
|
#endif
|
|
if (argc && *argv)
|
|
program_name = *argv;
|
|
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 || set_project )) {
|
|
fputs(_("Must use '-v', =, - or +\n"), stderr);
|
|
exit (1);
|
|
}
|
|
if (verbose)
|
|
fprintf (stderr, "chattr %s (%s)\n",
|
|
E2FSPROGS_VERSION, E2FSPROGS_DATE);
|
|
for (j = i; j < argc; j++) {
|
|
err = change_attributes (argv[j]);
|
|
if (err)
|
|
retval = 1;
|
|
}
|
|
exit(retval);
|
|
}
|