+/* vi: set sw=4 ts=4: */
/*
* lsattr.c - List file attributes on an ext2 file system
*
* 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
+//config:config LSATTR
+//config: bool "lsattr"
+//config: default y
+//config: select PLATFORM_LINUX
+//config: help
+//config: lsattr lists the file attributes on a second extended file system.
+
+//applet:IF_LSATTR(APPLET(lsattr, BB_DIR_BIN, BB_SUID_DROP))
+
+//kbuild:lib-$(CONFIG_LSATTR) += lsattr.o e2fs_lib.o
+
+//usage:#define lsattr_trivial_usage
+//usage: "[-Radlv] [FILE]..."
+//usage:#define lsattr_full_usage "\n\n"
+//usage: "List ext2 file attributes\n"
+//usage: "\n -R Recurse"
+//usage: "\n -a Don't hide entries starting with ."
+//usage: "\n -d List directory entries instead of contents"
+//usage: "\n -l List long flag names"
+//usage: "\n -v List version/generation number"
+
+#include "libbb.h"
+#include "e2fs_lib.h"
+
+enum {
+ OPT_RECUR = 0x1,
+ OPT_ALL = 0x2,
+ OPT_DIRS_OPT = 0x4,
+ OPT_PF_LONG = 0x8,
+ OPT_GENERATION = 0x10,
+};
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;
- }
+ if (fgetflags(name, &fsflags) != 0)
+ goto read_err;
+
+ if (option_mask32 & OPT_GENERATION) {
+ if (fgetversion(name, &generation) != 0)
+ goto read_err;
printf("%5lu ", generation);
}
- if (flags & OPT_PF_LONG) {
+
+ if (option_mask32 & OPT_PF_LONG) {
printf("%-28s ", name);
- print_flags(stdout, fsflags, PFOPT_LONG);
- fputc('\n', stdout);
+ print_e2flags(stdout, fsflags, PFOPT_LONG);
+ bb_putchar('\n');
} else {
- print_flags(stdout, fsflags, 0);
+ print_e2flags(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);
- }
+ return;
+ read_err:
+ bb_perror_msg("reading %s", name);
}
-static int lsattr_dir_proc(const char *dir_name, struct dirent *de,
- void *private EXT2FS_ATTR((unused)))
+static int FAST_FUNC lsattr_dir_proc(const char *dir_name,
+ struct dirent *de,
+ void *private UNUSED_PARAM)
{
- STRUCT_STAT st;
+ 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)
- 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");
- }
+
+ path = concat_path_file(dir_name, de->d_name);
+
+ if (lstat(path, &st) != 0)
+ bb_perror_msg("stat %s", path);
+ else if (de->d_name[0] != '.' || (option_mask32 & OPT_ALL)) {
+ list_attributes(path);
+ if (S_ISDIR(st.st_mode) && (option_mask32 & OPT_RECUR)
+ && !DOT_OR_DOTDOT(de->d_name)
+ ) {
+ printf("\n%s:\n", path);
+ iterate_on_dir(path, lsattr_dir_proc, NULL);
+ bb_putchar('\n');
}
}
+
free(path);
return 0;
}
-int lsattr_main(int argc, char **argv)
+static void lsattr_args(const char *name)
{
- int i;
+ struct stat st;
- flags = bb_getopt_ulflags(argc, argv, "Radlv");
+ if (lstat(name, &st) == -1) {
+ bb_perror_msg("stat %s", name);
+ } else if (S_ISDIR(st.st_mode) && !(option_mask32 & OPT_DIRS_OPT)) {
+ iterate_on_dir(name, lsattr_dir_proc, NULL);
+ } else {
+ list_attributes(name);
+ }
+}
+
+int lsattr_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int lsattr_main(int argc UNUSED_PARAM, char **argv)
+{
+ getopt32(argv, "Radlv");
+ argv += optind;
- if (optind > argc - 1)
- lsattr_args(".");
- else
- for (i = optind; i < argc; i++)
- lsattr_args(argv[i]);
+ if (!*argv)
+ *--argv = (char*)".";
+ do lsattr_args(*argv++); while (*argv);
return EXIT_SUCCESS;
}