source: MondoRescue/trunk/mindi-busybox/e2fsprogs/lsattr.c@ 904

/*
 * 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"

#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)
        goto read_err;
    if (flags & OPT_GENERATION) {
        if (fgetversion(name, &generation) == -1)
            goto read_err;
        printf("%5lu ", generation);
    }

    if (flags & OPT_PF_LONG) {
        printf("%-28s ", name);
        print_flags(stdout, fsflags, PFOPT_LONG);
        printf("\n");
    } else {
        print_flags(stdout, fsflags, 0);
        printf(" %s\n", name);
    }

    return;
read_err:
    bb_perror_msg("reading %s", 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("stating %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)
{
    STRUCT_STAT st;
    char *path;

    path = concat_path_file(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) &&
               (de->d_name[0] != '.' && (de->d_name[1] != '\0' ||
               (de->d_name[1] != '.' && de->d_name[2] != '\0')))) {
                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;
}