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 #include <sys/types.h>
  21 #include <dirent.h>
  22 #ifdef HAVE_ERRNO_H
  23 #include <errno.h>
  24 #endif
  25 #include <fcntl.h>
  26 #ifdef HAVE_GETOPT_H
  27 #include <getopt.h>
  28 #else
  29 extern int optind;
  30 extern char *optarg;
  31 #endif
  32 #include <stdio.h>
  33 #include <unistd.h>
  34 #include <stdlib.h>
  35 #include <string.h>
  36 #include <sys/param.h>
  37 #include <sys/stat.h>
  38 #include <linux/ext2_fs.h>
  39
  40 #include "et/com_err.h"
  41 #include "e2p/e2p.h"
  42
  43 #include "../version.h"
  44 #include "nls-enable.h"
  45
  46 static const char * program_name = "lsattr";
  47
  48 static int all = 0;
  49 static int dirs_opt = 0;
  50 static unsigned pf_options = 0;
  51 static int recursive = 0;
  52 static int verbose = 0;
  53 static int generation_opt = 0;
  54
  55 static void usage(void)
  56 {
  57         fprintf(stderr, _("Usage: %s [-RVadlv] [files...]\n"), program_name);
  58         exit(1);
  59 }
  60
  61 static void list_attributes (const char * name)
  62 {
  63         unsigned long flags;
  64         unsigned long generation;
  65
  66         if (fgetflags (name, &flags) == -1)
  67                 com_err (program_name, errno, _("While reading flags on %s"),
  68                          name);
  69         else if (fgetversion (name, &generation) == -1)
  70                 com_err (program_name, errno, _("While reading version on %s"),
  71                          name);
  72         else
  73         {
  74                 if (generation_opt)
  75                         printf ("%5lu ", generation);
  76                 if (pf_options & PFOPT_LONG) {
  77                         printf("%-28s ", name);
  78                         print_flags(stdout, flags, pf_options);
  79                         fputc('\n', stdout);
  80                 } else {
  81                         print_flags(stdout, flags, pf_options);
  82                         printf(" %s\n", name);
  83                 }
  84         }
  85 }
  86
  87 static int lsattr_dir_proc (const char *, struct dirent *, void *);
  88
  89 static void lsattr_args (const char * name)
  90 {
  91         struct stat st;
  92
  93         if (lstat (name, &st) == -1)
  94                 com_err (program_name, errno, _("while trying to stat %s"),
  95                          name);
  96         else {
  97                 if (S_ISDIR(st.st_mode) && !dirs_opt)
  98                         iterate_on_dir (name, lsattr_dir_proc, NULL);
  99                 else
 100                         list_attributes (name);
 101         }
 102 }
 103
 104 static int lsattr_dir_proc (const char * dir_name, struct dirent * de, void * private)
 105 {
 106         struct stat st;
 107         char *path;
 108
 109         path = malloc(strlen (dir_name) + 1 + strlen (de->d_name) + 1);
 110
 111         sprintf (path, "%s/%s", dir_name, de->d_name);
 112         if (lstat (path, &st) == -1)
 113                 perror (path);
 114         else {
 115                 if (de->d_name[0] != '.' || all) {
 116                         list_attributes (path);
 117                         if (S_ISDIR(st.st_mode) && recursive &&
 118                             strcmp(de->d_name, ".") &&
 119                             strcmp(de->d_name, "..")) {
 120                                 printf ("\n%s:\n", path);
 121                                 iterate_on_dir (path, lsattr_dir_proc, NULL);
 122                                 printf ("\n");
 123                         }
 124                 }
 125         }
 126         free(path);
 127         return 0;
 128 }
 129
 130 int main (int argc, char ** argv)
 131 {
 132         int c;
 133         int i;
 134
 135 #ifdef ENABLE_NLS
 136         setlocale(LC_MESSAGES, "");
 137         bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
 138         textdomain(NLS_CAT_NAME);
 139 #endif
 140         if (argc && *argv)
 141                 program_name = *argv;
 142         while ((c = getopt (argc, argv, "RVadlv")) != EOF)
 143                 switch (c)
 144                 {
 145                         case 'R':
 146                                 recursive = 1;
 147                                 break;
 148                         case 'V':
 149                                 verbose = 1;
 150                                 break;
 151                         case 'a':
 152                                 all = 1;
 153                                 break;
 154                         case 'd':
 155                                 dirs_opt = 1;
 156                                 break;
 157                         case 'l':
 158                                 pf_options = PFOPT_LONG;
 159                                 break;
 160                         case 'v':
 161                                 generation_opt = 1;
 162                                 break;
 163                         default:
 164                                 usage();
 165                 }
 166
 167         if (verbose)
 168                 fprintf (stderr, _("lsattr %s, %s for EXT2 FS %s, %s\n"),
 169                          E2FSPROGS_VERSION, E2FSPROGS_DATE,
 170                          EXT2FS_VERSION, EXT2FS_DATE);
 171         if (optind > argc - 1)
 172                 lsattr_args (".");
 173         else
 174                 for (i = optind; i < argc; i++)
 175                         lsattr_args (argv[i]);
 176         exit(0);
 177 }