LXR busybox/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//usage:#define lsattr_trivial_usage
  22//usage:       "[-Radlv] [FILE]..."
  23//usage:#define lsattr_full_usage "\n\n"
  24//usage:       "List file attributes on an ext2 fs\n"
  25//usage:     "\n        -R      Recurse"
  26//usage:     "\n        -a      Don't hide entries starting with ."
  27//usage:     "\n        -d      List directory entries instead of contents"
  28//usage:     "\n        -l      List long flag names"
  29//usage:     "\n        -v      List the file's version/generation number"
  30
  31#include "libbb.h"
  32#include "e2fs_lib.h"
  33
  34enum {
  35        OPT_RECUR      = 0x1,
  36        OPT_ALL        = 0x2,
  37        OPT_DIRS_OPT   = 0x4,
  38        OPT_PF_LONG    = 0x8,
  39        OPT_GENERATION = 0x10,
  40};
  41
  42static void list_attributes(const char *name)
  43{
  44        unsigned long fsflags;
  45        unsigned long generation;
  46
  47        if (fgetflags(name, &fsflags) != 0)
  48                goto read_err;
  49
  50        if (option_mask32 & OPT_GENERATION) {
  51                if (fgetversion(name, &generation) != 0)
  52                        goto read_err;
  53                printf("%5lu ", generation);
  54        }
  55
  56        if (option_mask32 & OPT_PF_LONG) {
  57                printf("%-28s ", name);
  58                print_e2flags(stdout, fsflags, PFOPT_LONG);
  59                bb_putchar('\n');
  60        } else {
  61                print_e2flags(stdout, fsflags, 0);
  62                printf(" %s\n", name);
  63        }
  64
  65        return;
  66 read_err:
  67        bb_perror_msg("reading %s", name);
  68}
  69
  70static int FAST_FUNC lsattr_dir_proc(const char *dir_name,
  71                struct dirent *de,
  72                void *private UNUSED_PARAM)
  73{
  74        struct stat st;
  75        char *path;
  76
  77        path = concat_path_file(dir_name, de->d_name);
  78
  79        if (lstat(path, &st) != 0)
  80                bb_perror_msg("stat %s", path);
  81        else if (de->d_name[0] != '.' || (option_mask32 & OPT_ALL)) {
  82                list_attributes(path);
  83                if (S_ISDIR(st.st_mode) && (option_mask32 & OPT_RECUR)
  84                 && !DOT_OR_DOTDOT(de->d_name)
  85                ) {
  86                        printf("\n%s:\n", path);
  87                        iterate_on_dir(path, lsattr_dir_proc, NULL);
  88                        bb_putchar('\n');
  89                }
  90        }
  91
  92        free(path);
  93        return 0;
  94}
  95
  96static void lsattr_args(const char *name)
  97{
  98        struct stat st;
  99
 100        if (lstat(name, &st) == -1) {
 101                bb_perror_msg("stat %s", name);
 102        } else if (S_ISDIR(st.st_mode) && !(option_mask32 & OPT_DIRS_OPT)) {
 103                iterate_on_dir(name, lsattr_dir_proc, NULL);
 104        } else {
 105                list_attributes(name);
 106        }
 107}
 108
 109int lsattr_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
 110int lsattr_main(int argc UNUSED_PARAM, char **argv)
 111{
 112        getopt32(argv, "Radlv");
 113        argv += optind;
 114
 115        if (!*argv)
 116                *--argv = (char*)".";
 117        do lsattr_args(*argv++); while (*argv);
 118
 119        return EXIT_SUCCESS;
 120}
 121