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 "config.h"
  23 #include <sys/types.h>
  24 #include <dirent.h>
  25 #ifdef HAVE_ERRNO_H
  26 #include <errno.h>
  27 #endif
  28 #include <fcntl.h>
  29 #ifdef HAVE_GETOPT_H
  30 #include <getopt.h>
  31 #else
  32 extern int optind;
  33 extern char *optarg;
  34 #endif
  35 #include <stdio.h>
  36 #include <unistd.h>
  37 #include <stdlib.h>
  38 #include <string.h>
  39 #include <sys/param.h>
  40 #include <sys/stat.h>
  41
  42 #include "ext2fs/ext2_fs.h"
  43 #include "et/com_err.h"
  44 #include "e2p/e2p.h"
  45
  46 #include "support/nls-enable.h"
  47 #include "../version.h"
  48
  49 #ifdef __GNUC__
  50 #define EXT2FS_ATTR(x) __attribute__(x)
  51 #else
  52 #define EXT2FS_ATTR(x)
  53 #endif
  54
  55 static const char * program_name = "lsattr";
  56
  57 static int all;
  58 static int dirs_opt;
  59 static unsigned pf_options;
  60 static int recursive;
  61 static int verbose;
  62 static int generation_opt;
  63 static int project_opt;
  64
  65 #ifdef _LFS64_LARGEFILE
  66 #define LSTAT           lstat64
  67 #define STRUCT_STAT     struct stat64
  68 #else
  69 #define LSTAT           lstat
  70 #define STRUCT_STAT     struct stat
  71 #endif
  72
  73 static void usage(void)
  74 {
  75         fprintf(stderr, _("Usage: %s [-RVadlpv] [files...]\n"), program_name);
  76         exit(1);
  77 }
  78
  79 static int list_attributes (const char * name)
  80 {
  81         unsigned long flags;
  82         unsigned long generation;
  83         unsigned long project;
  84
  85         if (fgetflags (name, &flags) == -1) {
  86                 com_err (program_name, errno, _("While reading flags on %s"),
  87                          name);
  88                 return -1;
  89         }
  90         if (project_opt) {
  91                 if (fgetproject(name, &project) == -1) {
  92                         com_err (program_name, errno,
  93                                  _("While reading project on %s"),
  94                                  name);
  95                         return -1;
  96                 }
  97                 printf ("%5lu ", project);
  98         }
  99         if (generation_opt) {
 100                 if (fgetversion (name, &generation) == -1) {
 101                         com_err (program_name, errno,
 102                                  _("While reading version on %s"),
 103                                  name);
 104                         return -1;
 105                 }
 106                 printf ("%-10lu ", generation);
 107         }
 108         if (pf_options & PFOPT_LONG) {
 109                 printf("%-28s ", name);
 110                 print_flags(stdout, flags, pf_options);
 111                 fputc('\n', stdout);
 112         } else {
 113                 print_flags(stdout, flags, pf_options);
 114                 printf(" %s\n", name);
 115         }
 116         return 0;
 117 }
 118
 119 static int lsattr_dir_proc (const char *, struct dirent *, void *);
 120
 121 static int lsattr_args (const char * name)
 122 {
 123         STRUCT_STAT     st;
 124         int retval = 0;
 125
 126         if (LSTAT (name, &st) == -1) {
 127                 com_err (program_name, errno, _("while trying to stat %s"),
 128                          name);
 129                 retval = -1;
 130         } else {
 131                 if (S_ISDIR(st.st_mode) && !dirs_opt)
 132                         retval = iterate_on_dir (name, lsattr_dir_proc, NULL);
 133                 else
 134                         retval = list_attributes (name);
 135         }
 136         return retval;
 137 }
 138
 139 static int lsattr_dir_proc (const char * dir_name, struct dirent * de,
 140                             void * private EXT2FS_ATTR((unused)))
 141 {
 142         STRUCT_STAT     st;
 143         char *path;
 144         int dir_len = strlen(dir_name);
 145
 146         path = malloc(dir_len + strlen (de->d_name) + 2);
 147         if (!path) {
 148                 fputs(_("Couldn't allocate path variable in lsattr_dir_proc\n"),
 149                         stderr);
 150                 return -1;
 151         }
 152
 153         if (dir_len && dir_name[dir_len-1] == '/')
 154                 sprintf (path, "%s%s", dir_name, de->d_name);
 155         else
 156                 sprintf (path, "%s/%s", dir_name, de->d_name);
 157         if (LSTAT (path, &st) == -1)
 158                 perror (path);
 159         else {
 160                 if (de->d_name[0] != '.' || all) {
 161                         list_attributes (path);
 162                         if (S_ISDIR(st.st_mode) && recursive &&
 163                             strcmp(de->d_name, ".") &&
 164                             strcmp(de->d_name, "..")) {
 165                                 printf ("\n%s:\n", path);
 166                                 iterate_on_dir (path, lsattr_dir_proc, NULL);
 167                                 printf ("\n");
 168                         }
 169                 }
 170         }
 171         free(path);
 172         return 0;
 173 }
 174
 175 int main (int argc, char ** argv)
 176 {
 177         int c;
 178         int i;
 179         int err, retval = 0;
 180
 181 #ifdef ENABLE_NLS
 182         setlocale(LC_MESSAGES, "");
 183         setlocale(LC_CTYPE, "");
 184         bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
 185         textdomain(NLS_CAT_NAME);
 186         set_com_err_gettext(gettext);
 187 #endif
 188         if (argc && *argv)
 189                 program_name = *argv;
 190         else
 191                 usage();
 192         while ((c = getopt (argc, argv, "RVadlvp")) != EOF)
 193                 switch (c)
 194                 {
 195                         case 'R':
 196                                 recursive = 1;
 197                                 break;
 198                         case 'V':
 199                                 verbose = 1;
 200                                 break;
 201                         case 'a':
 202                                 all = 1;
 203                                 break;
 204                         case 'd':
 205                                 dirs_opt = 1;
 206                                 break;
 207                         case 'l':
 208                                 pf_options = PFOPT_LONG;
 209                                 break;
 210                         case 'v':
 211                                 generation_opt = 1;
 212                                 break;
 213                         case 'p':
 214                                 project_opt = 1;
 215                                 break;
 216                         default:
 217                                 usage();
 218                 }
 219
 220         if (verbose)
 221                 fprintf (stderr, "lsattr %s (%s)\n",
 222                          E2FSPROGS_VERSION, E2FSPROGS_DATE);
 223         if (optind > argc - 1) {
 224                 if (lsattr_args (".") == -1)
 225                         retval = 1;
 226         } else {
 227                 for (i = optind; i < argc; i++) {
 228                         err = lsattr_args (argv[i]);
 229                         if (err)
 230                                 retval = 1;
 231                 }
 232         }
 233         exit(retval);
 234 }