git.maemo.org Git - busybox4maemo/blob - e2fsprogs/old_e2fsprogs/e2p/ls.c

   1 /* vi: set sw=4 ts=4: */
   2 /*
   3  * ls.c                 - List the contents of an ext2fs superblock
   4  *
   5  * Copyright (C) 1992, 1993, 1994  Remy Card <card@masi.ibp.fr>
   6  *                                 Laboratoire MASI, Institut Blaise Pascal
   7  *                                 Universite Pierre et Marie Curie (Paris VI)
   8  *
   9  * Copyright (C) 1995, 1996, 1997  Theodore Ts'o <tytso@mit.edu>
  10  *
  11  * This file can be redistributed under the terms of the GNU Library General
  12  * Public License
  13  */
  14
  15 #include <stdio.h>
  16 #include <stdlib.h>
  17 #include <sys/types.h>
  18 #include <string.h>
  19 #include <grp.h>
  20 #include <pwd.h>
  21 #include <time.h>
  22
  23 #include "e2p.h"
  24
  25 static void print_user(unsigned short uid, FILE *f)
  26 {
  27         struct passwd *pw = getpwuid(uid);
  28         fprintf(f, "%u (user %s)\n", uid,
  29                         (pw == NULL ? "unknown" : pw->pw_name));
  30 }
  31
  32 static void print_group(unsigned short gid, FILE *f)
  33 {
  34         struct group *gr = getgrgid(gid);
  35         fprintf(f, "%u (group %s)\n", gid,
  36                         (gr == NULL ? "unknown" : gr->gr_name));
  37 }
  38
  39 #define MONTH_INT (86400 * 30)
  40 #define WEEK_INT (86400 * 7)
  41 #define DAY_INT (86400)
  42 #define HOUR_INT (60 * 60)
  43 #define MINUTE_INT (60)
  44
  45 static const char *interval_string(unsigned int secs)
  46 {
  47         static char buf[256], tmp[80];
  48         int             hr, min, num;
  49
  50         buf[0] = 0;
  51
  52         if (secs == 0)
  53                 return "<none>";
  54
  55         if (secs >= MONTH_INT) {
  56                 num = secs / MONTH_INT;
  57                 secs -= num*MONTH_INT;
  58                 sprintf(buf, "%d month%s", num, (num>1) ? "s" : "");
  59         }
  60         if (secs >= WEEK_INT) {
  61                 num = secs / WEEK_INT;
  62                 secs -= num*WEEK_INT;
  63                 sprintf(tmp, "%s%d week%s", buf[0] ? ", " : "",
  64                         num, (num>1) ? "s" : "");
  65                 strcat(buf, tmp);
  66         }
  67         if (secs >= DAY_INT) {
  68                 num = secs / DAY_INT;
  69                 secs -= num*DAY_INT;
  70                 sprintf(tmp, "%s%d day%s", buf[0] ? ", " : "",
  71                         num, (num>1) ? "s" : "");
  72                 strcat(buf, tmp);
  73         }
  74         if (secs > 0) {
  75                 hr = secs / HOUR_INT;
  76                 secs -= hr*HOUR_INT;
  77                 min = secs / MINUTE_INT;
  78                 secs -= min*MINUTE_INT;
  79                 sprintf(tmp, "%s%d:%02d:%02d", buf[0] ? ", " : "",
  80                         hr, min, secs);
  81                 strcat(buf, tmp);
  82         }
  83         return buf;
  84 }
  85
  86 static void print_features(struct ext2_super_block * s, FILE *f)
  87 {
  88 #ifdef EXT2_DYNAMIC_REV
  89         int     i, j, printed=0;
  90         __u32   *mask = &s->s_feature_compat, m;
  91
  92         fprintf(f, "Filesystem features:     ");
  93         for (i=0; i <3; i++,mask++) {
  94                 for (j=0,m=1; j < 32; j++, m<<=1) {
  95                         if (*mask & m) {
  96                                 fprintf(f, " %s", e2p_feature2string(i, m));
  97                                 printed++;
  98                         }
  99                 }
 100         }
 101         if (printed == 0)
 102                 fprintf(f, " (none)");
 103         fprintf(f, "\n");
 104 #endif
 105 }
 106
 107 static void print_mntopts(struct ext2_super_block * s, FILE *f)
 108 {
 109 #ifdef EXT2_DYNAMIC_REV
 110         int     i, printed=0;
 111         __u32   mask = s->s_default_mount_opts, m;
 112
 113         fprintf(f, "Default mount options:   ");
 114         if (mask & EXT3_DEFM_JMODE) {
 115                 fprintf(f, " %s", e2p_mntopt2string(mask & EXT3_DEFM_JMODE));
 116                 printed++;
 117         }
 118         for (i=0,m=1; i < 32; i++, m<<=1) {
 119                 if (m & EXT3_DEFM_JMODE)
 120                         continue;
 121                 if (mask & m) {
 122                         fprintf(f, " %s", e2p_mntopt2string(m));
 123                         printed++;
 124                 }
 125         }
 126         if (printed == 0)
 127                 fprintf(f, " (none)");
 128         fprintf(f, "\n");
 129 #endif
 130 }
 131
 132
 133 #ifndef EXT2_INODE_SIZE
 134 #define EXT2_INODE_SIZE(s) sizeof(struct ext2_inode)
 135 #endif
 136
 137 #ifndef EXT2_GOOD_OLD_REV
 138 #define EXT2_GOOD_OLD_REV 0
 139 #endif
 140
 141 void list_super2(struct ext2_super_block * sb, FILE *f)
 142 {
 143         int inode_blocks_per_group;
 144         char buf[80], *str;
 145         time_t  tm;
 146
 147         inode_blocks_per_group = (((sb->s_inodes_per_group *
 148                                     EXT2_INODE_SIZE(sb)) +
 149                                    EXT2_BLOCK_SIZE(sb) - 1) /
 150                                   EXT2_BLOCK_SIZE(sb));
 151         if (sb->s_volume_name[0]) {
 152                 memset(buf, 0, sizeof(buf));
 153                 strncpy(buf, sb->s_volume_name, sizeof(sb->s_volume_name));
 154         } else
 155                 strcpy(buf, "<none>");
 156         fprintf(f, "Filesystem volume name:   %s\n", buf);
 157         if (sb->s_last_mounted[0]) {
 158                 memset(buf, 0, sizeof(buf));
 159                 strncpy(buf, sb->s_last_mounted, sizeof(sb->s_last_mounted));
 160         } else
 161                 strcpy(buf, "<not available>");
 162         fprintf(f,
 163                 "Last mounted on:          %s\n"
 164                 "Filesystem UUID:          %s\n"
 165                 "Filesystem magic number:  0x%04X\n"
 166                 "Filesystem revision #:    %d",
 167                 buf, e2p_uuid2str(sb->s_uuid), sb->s_magic, sb->s_rev_level);
 168         if (sb->s_rev_level == EXT2_GOOD_OLD_REV) {
 169                 fprintf(f, " (original)\n");
 170 #ifdef EXT2_DYNAMIC_REV
 171         } else if (sb->s_rev_level == EXT2_DYNAMIC_REV) {
 172                 fprintf(f, " (dynamic)\n");
 173 #endif
 174         } else
 175                 fprintf(f, " (unknown)\n");
 176         print_features(sb, f);
 177         print_mntopts(sb, f);
 178         fprintf(f, "Filesystem state:        ");
 179         print_fs_state (f, sb->s_state);
 180         fprintf(f, "\nErrors behavior:          ");
 181         print_fs_errors(f, sb->s_errors);
 182         str = e2p_os2string(sb->s_creator_os);
 183         fprintf(f,
 184                 "\n"
 185                 "Filesystem OS type:       %s\n"
 186                 "Inode count:              %u\n"
 187                 "Block count:              %u\n"
 188                 "Reserved block count:     %u\n"
 189                 "Free blocks:              %u\n"
 190                 "Free inodes:              %u\n"
 191                 "First block:              %u\n"
 192                 "Block size:               %u\n"
 193                 "Fragment size:            %u\n",
 194                 str, sb->s_inodes_count, sb->s_blocks_count, sb->s_r_blocks_count,
 195                 sb->s_free_blocks_count, sb->s_free_inodes_count,
 196                 sb->s_first_data_block, EXT2_BLOCK_SIZE(sb), EXT2_FRAG_SIZE(sb));
 197         free(str);
 198         if (sb->s_reserved_gdt_blocks)
 199                 fprintf(f, "Reserved GDT blocks:      %u\n",
 200                         sb->s_reserved_gdt_blocks);
 201         fprintf(f,
 202                 "Blocks per group:         %u\n"
 203                 "Fragments per group:      %u\n"
 204                 "Inodes per group:         %u\n"
 205                 "Inode blocks per group:   %u\n",
 206                 sb->s_blocks_per_group, sb->s_frags_per_group,
 207                 sb->s_inodes_per_group, inode_blocks_per_group);
 208         if (sb->s_first_meta_bg)
 209                 fprintf(f, "First meta block group:   %u\n",
 210                         sb->s_first_meta_bg);
 211         if (sb->s_mkfs_time) {
 212                 tm = sb->s_mkfs_time;
 213                 fprintf(f, "Filesystem created:       %s", ctime(&tm));
 214         }
 215         tm = sb->s_mtime;
 216         fprintf(f, "Last mount time:          %s",
 217                 sb->s_mtime ? ctime(&tm) : "n/a\n");
 218         tm = sb->s_wtime;
 219         fprintf(f,
 220                 "Last write time:          %s"
 221                 "Mount count:              %u\n"
 222                 "Maximum mount count:      %d\n",
 223                 ctime(&tm), sb->s_mnt_count, sb->s_max_mnt_count);
 224         tm = sb->s_lastcheck;
 225         fprintf(f,
 226                 "Last checked:             %s"
 227                 "Check interval:           %u (%s)\n",
 228                 ctime(&tm),
 229                 sb->s_checkinterval, interval_string(sb->s_checkinterval));
 230         if (sb->s_checkinterval)
 231         {
 232                 time_t next;
 233
 234                 next = sb->s_lastcheck + sb->s_checkinterval;
 235                 fprintf(f, "Next check after:         %s", ctime(&next));
 236         }
 237         fprintf(f, "Reserved blocks uid:      ");
 238         print_user(sb->s_def_resuid, f);
 239         fprintf(f, "Reserved blocks gid:      ");
 240         print_group(sb->s_def_resgid, f);
 241         if (sb->s_rev_level >= EXT2_DYNAMIC_REV) {
 242                 fprintf(f,
 243                         "First inode:              %d\n"
 244                         "Inode size:              %d\n",
 245                         sb->s_first_ino, sb->s_inode_size);
 246         }
 247         if (!e2p_is_null_uuid(sb->s_journal_uuid))
 248                 fprintf(f, "Journal UUID:             %s\n",
 249                         e2p_uuid2str(sb->s_journal_uuid));
 250         if (sb->s_journal_inum)
 251                 fprintf(f, "Journal inode:            %u\n",
 252                         sb->s_journal_inum);
 253         if (sb->s_journal_dev)
 254                 fprintf(f, "Journal device:               0x%04x\n",
 255                         sb->s_journal_dev);
 256         if (sb->s_last_orphan)
 257                 fprintf(f, "First orphan inode:       %u\n",
 258                         sb->s_last_orphan);
 259         if ((sb->s_feature_compat & EXT2_FEATURE_COMPAT_DIR_INDEX) ||
 260             sb->s_def_hash_version)
 261                 fprintf(f, "Default directory hash:   %s\n",
 262                         e2p_hash2string(sb->s_def_hash_version));
 263         if (!e2p_is_null_uuid(sb->s_hash_seed))
 264                 fprintf(f, "Directory Hash Seed:      %s\n",
 265                         e2p_uuid2str(sb->s_hash_seed));
 266         if (sb->s_jnl_backup_type) {
 267                 fprintf(f, "Journal backup:           ");
 268                 if (sb->s_jnl_backup_type == 1)
 269                         fprintf(f, "inode blocks\n");
 270                 else
 271                         fprintf(f, "type %u\n", sb->s_jnl_backup_type);
 272         }
 273 }