misc/lsattr.c

   1 /*
   2  * lsattr.c             - List file attributes on an ext2 file system
   3  *
   4  * Copyright (C) 1993, 1994  Remy Card <card@masi.ibp.fr>
   5  *                           Laboratoire MASI, Institut Blaise Pascal
   6  *                           Universite Pierre et Marie Curie (Paris VI)
   7  *
   8  * This file can be redistributed under the terms of the GNU General
   9  * Public License
  10  */
  11
  12 /*
  13  * History:
  14  * 93/10/30     - Creation
  15  * 93/11/13     - Replace stat() calls by lstat() to avoid loops
  16  * 94/02/27     - Integrated in Ted's distribution
  17  * 98/12/29     - Display version info only when -V specified (G M Sipe)
  18  */
  19
  20 #define _LARGEFILE64_SOURCE
  21
  22 #include <sys/types.h>
  23 #include <dirent.h>
  24 #ifdef HAVE_ERRNO_H
  25 #include <errno.h>
  26 #endif
  27 #include <fcntl.h>
  28 #ifdef HAVE_GETOPT_H
  29 #include <getopt.h>
  30 #else
  31 extern int optind;
  32 extern char *optarg;
  33 #endif
  34 #include <stdio.h>
  35 #include <unistd.h>
  36 #include <stdlib.h>
  37 #include <string.h>
  38 #include <sys/param.h>
  39 #include <sys/stat.h>
  40
  41 #include "ext2fs/ext2_fs.h"
  42 #include "et/com_err.h"
  43 #include "e2p/e2p.h"
  44
  45 #include "../version.h"
  46 #include "nls-enable.h"
  47
  48 #ifdef __GNUC__
  49 #define EXT2FS_ATTR(x) __attribute__(x)
  50 #else
  51 #define EXT2FS_ATTR(x)
  52 #endif
  53
  54 static const char * program_name = "lsattr";
  55
  56 static int all;
  57 static int dirs_opt;
  58 static unsigned pf_options;
  59 static int recursive;
  60 static int verbose;
  61 static int generation_opt;
  62
  63 #ifdef _LFS64_LARGEFILE
  64 #define LSTAT           lstat64
  65 #define STRUCT_STAT     struct stat64
  66 #else
  67 #define LSTAT           lstat
  68 #define STRUCT_STAT     struct stat
  69 #endif
  70
  71 static void usage(void)
  72 {
  73         fprintf(stderr, _("Usage: %s [-RVadlv] [files...]\n"), program_name);
  74         exit(1);
  75 }
  76
  77 static int list_attributes (const char * name)
  78 {
  79         unsigned long flags;
  80         unsigned long generation;
  81
  82         if (fgetflags (name, &flags) == -1) {
  83                 com_err (program_name, errno, _("While reading flags on %s"),
  84                          name);
  85                 return -1;
  86         }
  87         if (generation_opt) {
  88                 if (fgetversion (name, &generation) == -1) {
  89                         com_err (program_name, errno,
  90                                  _("While reading version on %s"),
  91                                  name);
  92                         return -1;
  93                 }
  94                 printf ("%5lu ", generation);
  95         }
  96         if (pf_options & PFOPT_LONG) {
  97                 printf("%-28s ", name);
  98                 print_flags(stdout, flags, pf_options);
  99                 fputc('\n', stdout);
 100         } else {
 101                 print_flags(stdout, flags, pf_options);
 102                 printf(" %s\n", name);
 103         }
 104         return 0;
 105 }
 106
 107 static int lsattr_dir_proc (const char *, struct dirent *, void *);
 108
 109 static int lsattr_args (const char * name)
 110 {
 111         STRUCT_STAT     st;
 112         int retval = 0;
 113
 114         if (LSTAT (name, &st) == -1) {
 115                 com_err (program_name, errno, _("while trying to stat %s"),
 116                          name);
 117                 retval = -1;
 118         } else {
 119                 if (S_ISDIR(st.st_mode) && !dirs_opt)
 120                         retval = iterate_on_dir (name, lsattr_dir_proc, NULL);
 121                 else
 122                         retval = list_attributes (name);
 123         }
 124         return retval;
 125 }
 126
 127 static int lsattr_dir_proc (const char * dir_name, struct dirent * de,
 128                             void * private EXT2FS_ATTR((unused)))
 129 {
 130         STRUCT_STAT     st;
 131         char *path;
 132         int dir_len = strlen(dir_name);
 133
 134         path = malloc(dir_len + strlen (de->d_name) + 2);
 135
 136         if (dir_len && dir_name[dir_len-1] == '/')
 137                 sprintf (path, "%s%s", dir_name, de->d_name);
 138         else
 139                 sprintf (path, "%s/%s", dir_name, de->d_name);
 140         if (LSTAT (path, &st) == -1)
 141                 perror (path);
 142         else {
 143                 if (de->d_name[0] != '.' || all) {
 144                         list_attributes (path);
 145                         if (S_ISDIR(st.st_mode) && recursive &&
 146                             strcmp(de->d_name, ".") &&
 147                             strcmp(de->d_name, "..")) {
 148                                 printf ("\n%s:\n", path);
 149                                 iterate_on_dir (path, lsattr_dir_proc, NULL);
 150                                 printf ("\n");
 151                         }
 152                 }
 153         }
 154         free(path);
 155         return 0;
 156 }
 157
 158 int main (int argc, char ** argv)
 159 {
 160         int c;
 161         int i;
 162         int err, retval = 0;
 163
 164 #ifdef ENABLE_NLS
 165         setlocale(LC_MESSAGES, "");
 166         setlocale(LC_CTYPE, "");
 167         bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
 168         textdomain(NLS_CAT_NAME);
 169 #endif
 170         if (argc && *argv)
 171                 program_name = *argv;
 172         while ((c = getopt (argc, argv, "RVadlv")) != EOF)
 173                 switch (c)
 174                 {
 175                         case 'R':
 176                                 recursive = 1;
 177                                 break;
 178                         case 'V':
 179                                 verbose = 1;
 180                                 break;
 181                         case 'a':
 182                                 all = 1;
 183                                 break;
 184                         case 'd':
 185                                 dirs_opt = 1;
 186                                 break;
 187                         case 'l':
 188                                 pf_options = PFOPT_LONG;
 189                                 break;
 190                         case 'v':
 191                                 generation_opt = 1;
 192                                 break;
 193                         default:
 194                                 usage();
 195                 }
 196
 197         if (verbose)
 198                 fprintf (stderr, "lsattr %s (%s)\n",
 199                          E2FSPROGS_VERSION, E2FSPROGS_DATE);
 200         if (optind > argc - 1) {
 201                 if (lsattr_args (".") == -1)
 202                         retval = 1;
 203         } else {
 204                 for (i = optind; i < argc; i++) {
 205                         err = lsattr_args (argv[i]);
 206                         if (err)
 207                                 retval = 1;
 208                 }
 209         }
 210         exit(retval);
 211 }