busybox/e2fsprogs/lsattr.c

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2005-04-24 10:37:59 +05:30
/*
* lsattr.c - List 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 - Display version info only when -V specified (G M Sipe)
*/
#include <sys/types.h>
#include <dirent.h>
#include <errno.h>
#include <fcntl.h>
#include <getopt.h>
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <sys/param.h>
#include <sys/stat.h>
#include <ext2fs/ext2_fs.h>
#include "e2fsbb.h"
#include "e2p/e2p.h"
#ifdef __GNUC__
#define EXT2FS_ATTR(x) __attribute__(x)
#else
#define EXT2FS_ATTR(x)
#endif
static int all;
static int dirs_opt;
static unsigned pf_options;
static int recursive;
static int verbose;
static int generation_opt;
#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 usage(void)
{
fprintf(stderr, _("Usage: %s [-RVadlv] [files...]\n"), program_name);
exit(1);
}
#endif
static void list_attributes (const char * name)
{
unsigned long flags;
unsigned long generation;
if (fgetflags (name, &flags) == -1) {
com_err (program_name, errno, _("While reading flags on %s"),
name);
return;
}
if (generation_opt) {
if (fgetversion (name, &generation) == -1) {
com_err (program_name, errno,
_("While reading version on %s"),
name);
return;
}
printf ("%5lu ", generation);
}
if (pf_options & PFOPT_LONG) {
printf("%-28s ", name);
print_flags(stdout, flags, pf_options);
fputc('\n', stdout);
} else {
print_flags(stdout, flags, pf_options);
printf(" %s\n", name);
}
}
static int lsattr_dir_proc (const char *, struct dirent *, void *);
static void lsattr_args (const char * name)
{
STRUCT_STAT st;
if (LSTAT (name, &st) == -1)
com_err (program_name, errno, _("while trying to stat %s"),
name);
else {
if (S_ISDIR(st.st_mode) && !dirs_opt)
iterate_on_dir (name, lsattr_dir_proc, NULL);
else
list_attributes (name);
}
}
static int lsattr_dir_proc (const char * dir_name, struct dirent * de,
void * private EXT2FS_ATTR((unused)))
{
STRUCT_STAT st;
char *path;
int dir_len = strlen(dir_name);
path = malloc(dir_len + strlen (de->d_name) + 2);
if (dir_len && dir_name[dir_len-1] == '/')
sprintf (path, "%s%s", dir_name, de->d_name);
else
sprintf (path, "%s/%s", dir_name, de->d_name);
if (LSTAT (path, &st) == -1)
perror (path);
else {
if (de->d_name[0] != '.' || all) {
list_attributes (path);
if (S_ISDIR(st.st_mode) && recursive &&
strcmp(de->d_name, ".") &&
strcmp(de->d_name, "..")) {
printf ("\n%s:\n", path);
iterate_on_dir (path, lsattr_dir_proc, NULL);
printf ("\n");
}
}
}
free(path);
return 0;
}
int lsattr_main (int argc, char ** argv)
{
int c;
int i;
#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
while ((c = getopt (argc, argv, "Radlv")) != EOF)
switch (c)
{
case 'R':
recursive = 1;
break;
case 'V':
verbose = 1;
break;
case 'a':
all = 1;
break;
case 'd':
dirs_opt = 1;
break;
case 'l':
pf_options = PFOPT_LONG;
break;
case 'v':
generation_opt = 1;
break;
default:
usage();
}
#if 0
if (verbose)
fprintf (stderr, "lsattr %s (%s)\n",
E2FSPROGS_VERSION, E2FSPROGS_DATE);
#endif
if (optind > argc - 1)
lsattr_args (".");
else
for (i = optind; i < argc; i++)
lsattr_args (argv[i]);
exit(0);
}