import lsattr and chattr from e2fsprogs
This commit is contained in:
Mike Frysinger
307
util-linux/chattr.c
Normal file
307
util-linux/chattr.c
Normal file
@ -0,0 +1,307 @@
|
||||
/*
|
||||
* 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 "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"
|
||||
|
||||
#define main chattr_main
|
||||
|
||||
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 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);
|
||||
}
|
||||
Reference in New Issue
Block a user