release/src/router/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 #include "libbb.h"
  22 #include "e2fs_lib.h"
  23
  24 enum {
  25         OPT_RECUR      = 0x1,
  26         OPT_ALL        = 0x2,
  27         OPT_DIRS_OPT   = 0x4,
  28         OPT_PF_LONG    = 0x8,
  29         OPT_GENERATION = 0x10,
  30 };
  31
  32 static void list_attributes(const char *name)
  33 {
  34         unsigned long fsflags;
  35         unsigned long generation;
  36
  37         if (fgetflags(name, &fsflags) != 0)
  38                 goto read_err;
  39
  40         if (option_mask32 & OPT_GENERATION) {
  41                 if (fgetversion(name, &generation) != 0)
  42                         goto read_err;
  43                 printf("%5lu ", generation);
  44         }
  45
  46         if (option_mask32 & OPT_PF_LONG) {
  47                 printf("%-28s ", name);
  48                 print_e2flags(stdout, fsflags, PFOPT_LONG);
  49                 bb_putchar('\n');
  50         } else {
  51                 print_e2flags(stdout, fsflags, 0);
  52                 printf(" %s\n", name);
  53         }
  54
  55         return;
  56  read_err:
  57         bb_perror_msg("reading %s", name);
  58 }
  59
  60 static int lsattr_dir_proc(const char *dir_name, struct dirent *de,
  61                            void *private UNUSED_PARAM)
  62 {
  63         struct stat st;
  64         char *path;
  65
  66         path = concat_path_file(dir_name, de->d_name);
  67
  68         if (lstat(path, &st) != 0)
  69                 bb_perror_msg("stat %s", path);
  70         else if (de->d_name[0] != '.' || (option_mask32 & OPT_ALL)) {
  71                 list_attributes(path);
  72                 if (S_ISDIR(st.st_mode) && (option_mask32 & OPT_RECUR)
  73                  && !DOT_OR_DOTDOT(de->d_name)
  74                 ) {
  75                         printf("\n%s:\n", path);
  76                         iterate_on_dir(path, lsattr_dir_proc, NULL);
  77                         bb_putchar('\n');
  78                 }
  79         }
  80
  81         free(path);
  82         return 0;
  83 }
  84
  85 static void lsattr_args(const char *name)
  86 {
  87         struct stat st;
  88
  89         if (lstat(name, &st) == -1) {
  90                 bb_perror_msg("stat %s", name);
  91         } else if (S_ISDIR(st.st_mode) && !(option_mask32 & OPT_DIRS_OPT)) {
  92                 iterate_on_dir(name, lsattr_dir_proc, NULL);
  93         } else {
  94                 list_attributes(name);
  95         }
  96 }
  97
  98 int lsattr_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
  99 int lsattr_main(int argc UNUSED_PARAM, char **argv)
 100 {
 101         getopt32(argv, "Radlv");
 102         argv += optind;
 103
 104         if (!*argv)
 105                 *--argv = (char*)".";
 106         do lsattr_args(*argv++); while (*argv);
 107
 108         return EXIT_SUCCESS;
 109 }