LXR busybox/e2fsprogs/old_e2fsprogs/lsattr.c

   1/* vi: set sw=4 ts=4: */
   2/*
   3 * lsattr.c             - List file attributes on an ext2 file system
   4 *
   5 * Copyright (C) 1993, 1994  Remy Card <card@masi.ibp.fr>
   6 *                           Laboratoire MASI, Institut Blaise Pascal
   7 *                           Universite Pierre et Marie Curie (Paris VI)
   8 *
   9 * This file can be redistributed under the terms of the GNU General
  10 * Public License
  11 */
  12
  13/*
  14 * History:
  15 * 93/10/30     - Creation
  16 * 93/11/13     - Replace stat() calls by lstat() to avoid loops
  17 * 94/02/27     - Integrated in Ted's distribution
  18 * 98/12/29     - Display version info only when -V specified (G M Sipe)
  19 */
  20
  21#include <sys/types.h>
  22#include <dirent.h>
  23#include <errno.h>
  24#include <fcntl.h>
  25#include <getopt.h>
  26#include <stdio.h>
  27#include <unistd.h>
  28#include <stdlib.h>
  29#include <string.h>
  30#include <sys/param.h>
  31#include <sys/stat.h>
  32
  33#include "ext2fs/ext2_fs.h"
  34#include "e2fsbb.h"
  35#include "e2p/e2p.h"
  36
  37#define OPT_RECUR 1
  38#define OPT_ALL 2
  39#define OPT_DIRS_OPT 4
  40#define OPT_PF_LONG 8
  41#define OPT_GENERATION 16
  42static int flags;
  43
  44static void list_attributes(const char *name)
  45{
  46        unsigned long fsflags;
  47        unsigned long generation;
  48
  49        if (fgetflags(name, &fsflags) == -1)
  50                goto read_err;
  51        if (flags & OPT_GENERATION) {
  52                if (fgetversion(name, &generation) == -1)
  53                        goto read_err;
  54                printf("%5lu ", generation);
  55        }
  56
  57        if (flags & OPT_PF_LONG) {
  58                printf("%-28s ", name);
  59                print_e2flags(stdout, fsflags, PFOPT_LONG);
  60                bb_putchar('\n');
  61        } else {
  62                print_e2flags(stdout, fsflags, 0);
  63                printf(" %s\n", name);
  64        }
  65
  66        return;
  67read_err:
  68        bb_perror_msg("reading %s", name);
  69}
  70
  71static int lsattr_dir_proc(const char *, struct dirent *, void *);
  72
  73static void lsattr_args(const char *name)
  74{
  75        struct stat st;
  76
  77        if (lstat(name, &st) == -1) {
  78                bb_perror_msg("stating %s", name);
  79        } else {
  80                if (S_ISDIR(st.st_mode) && !(flags & OPT_DIRS_OPT))
  81                        iterate_on_dir(name, lsattr_dir_proc, NULL);
  82                else
  83                        list_attributes(name);
  84        }
  85}
  86
  87static int lsattr_dir_proc(const char *dir_name, struct dirent *de,
  88                           void *private)
  89{
  90        struct stat st;
  91        char *path;
  92
  93        path = concat_path_file(dir_name, de->d_name);
  94
  95        if (lstat(path, &st) == -1)
  96                bb_perror_msg(path);
  97        else {
  98                if (de->d_name[0] != '.' || (flags & OPT_ALL)) {
  99                        list_attributes(path);
 100                        if (S_ISDIR(st.st_mode) && (flags & OPT_RECUR) &&
 101                           (de->d_name[0] != '.' && (de->d_name[1] != '\0' ||
 102                           (de->d_name[1] != '.' && de->d_name[2] != '\0')))) {
 103                                printf("\n%s:\n", path);
 104                                iterate_on_dir(path, lsattr_dir_proc, NULL);
 105                                bb_putchar('\n');
 106                        }
 107                }
 108        }
 109
 110        free(path);
 111
 112        return 0;
 113}
 114
 115int lsattr_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
 116int lsattr_main(int argc, char **argv)
 117{
 118        int i;
 119
 120        flags = getopt32(argv, "Radlv");
 121
 122        if (optind > argc - 1)
 123                lsattr_args(".");
 124        else
 125                for (i = optind; i < argc; i++)
 126                        lsattr_args(argv[i]);
 127
 128        return EXIT_SUCCESS;
 129}
 130