source: MondoRescue/branches/3.2/mindi-busybox/e2fsprogs/lsattr.c@ 3232

/* vi: set sw=4 ts=4: */
/*
 * 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)
 */

//usage:#define lsattr_trivial_usage
//usage:       "[-Radlv] [FILE]..."
//usage:#define lsattr_full_usage "\n\n"
//usage:       "List file attributes on an ext2 fs\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 the file's 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) != 0)
        goto read_err;

    if (option_mask32 & OPT_GENERATION) {
        if (fgetversion(name, &generation) != 0)
            goto read_err;
        printf("%5lu ", generation);
    }

    if (option_mask32 & OPT_PF_LONG) {
        printf("%-28s ", name);
        print_e2flags(stdout, fsflags, PFOPT_LONG);
        bb_putchar('\n');
    } else {
        print_e2flags(stdout, fsflags, 0);
        printf(" %s\n", name);
    }

    return;
 read_err:
    bb_perror_msg("reading %s", name);
}

static int FAST_FUNC lsattr_dir_proc(const char *dir_name,
        struct dirent *de,
        void *private UNUSED_PARAM)
{
    struct stat st;
    char *path;

    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;
}

static void lsattr_args(const char *name)
{
    struct stat st;

    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 (!*argv)
        *--argv = (char*)".";
    do lsattr_args(*argv++); while (*argv);

    return EXIT_SUCCESS;
}