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 <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
  42 static int flags;
  43
  44 static 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;
  67 read_err:
  68         bb_perror_msg("reading %s", name);
  69 }
  70
  71 static int lsattr_dir_proc(const char *, struct dirent *, void *);
  72
  73 static 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
  87 static 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
 115 int lsattr_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
 116 int 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 }