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/*
* 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
#define OPT_RECUR 1
#define OPT_ALL 2
#define OPT_DIRS_OPT 4
#define OPT_PF_LONG 8
#define OPT_GENERATION 16
static int flags;
#ifdef CONFIG_LFS
# define LSTAT lstat64
# define STRUCT_STAT struct stat64
#else
# define LSTAT lstat
# define STRUCT_STAT struct stat
#endif
static void list_attributes(const char *name)
{
unsigned long fsflags;
unsigned long generation;
if (fgetflags(name, &fsflags) == -1) {
bb_perror_msg("While reading flags on %s", name);
return;
}
if (flags & OPT_GENERATION) {
if (fgetversion(name, &generation) == -1) {
bb_perror_msg("While reading version on %s", name);
return;
}
printf("%5lu ", generation);
}
if (flags & OPT_PF_LONG) {
printf("%-28s ", name);
print_flags(stdout, fsflags, PFOPT_LONG);
fputc('\n', stdout);
} else {
print_flags(stdout, fsflags, 0);
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)
bb_perror_msg("while trying to stat %s", name);
else {
if (S_ISDIR(st.st_mode) && !(flags & OPT_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 i = strlen(dir_name);
if (i && dir_name[i-1] == '/')
i = asprintf(&path, "%s%s", dir_name, de->d_name);
else
i = asprintf(&path, "%s/%s", dir_name, de->d_name);
if (i == -1)
bb_error_msg_and_die(bb_msg_memory_exhausted);
if (LSTAT(path, &st) == -1)
bb_perror_msg(path);
else {
if (de->d_name[0] != '.' || (flags & OPT_ALL)) {
list_attributes(path);
if (S_ISDIR(st.st_mode) && (flags & OPT_RECUR) &&
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 i;
flags = bb_getopt_ulflags(argc, argv, "Radlv");
if (optind > argc - 1)
lsattr_args(".");
else
for (i = optind; i < argc; i++)
lsattr_args(argv[i]);
return EXIT_SUCCESS;
}
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