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dupfs.c (ext2fs_dup_handle): Make sure the new filesystem handle
[tools/e2fsprogs.git] / misc / dumpe2fs.c
index de68d09..73042fa 100644 (file)
@@ -37,6 +37,7 @@ extern int optind;
 #include "ext2fs/ext2fs.h"
 #include "e2p/e2p.h"
 #include "jfs_user.h"
+#include <uuid/uuid.h>
 
 #include "../version.h"
 #include "nls-enable.h"
@@ -45,7 +46,8 @@ extern int optind;
 
 const char * program_name = "dumpe2fs";
 char * device_name = NULL;
-int opt_hex = 0;
+const char *num_format = "%lu";
+char range_format[16];
 
 static void usage(void)
 {
@@ -54,6 +56,11 @@ static void usage(void)
        exit (1);
 }
 
+static void print_number (unsigned long num)
+{
+       printf(num_format, num);
+}
+
 static void print_free (unsigned long group, char * bitmap,
                        unsigned long nbytes, unsigned long offset)
 {
@@ -61,23 +68,19 @@ static void print_free (unsigned long group, char * bitmap,
        unsigned long i;
        unsigned long j;
 
+       offset += group * nbytes;
        for (i = 0; i < nbytes; i++)
                if (!in_use (bitmap, i))
                {
                        if (p)
                                printf (", ");
-                       if (i == nbytes - 1 || in_use (bitmap, i + 1))
-                               printf (opt_hex ? "0x%04x" : "%lu",
-                                       group * nbytes + i + offset);
-                       else
-                       {
-                               for (j = i; j < nbytes && !in_use (bitmap, j);
-                                    j++)
-                                       ;
-                               printf (opt_hex ? "0x%04lx-0x%04lx" :
-                                       "%lu-%lu", group * nbytes + i + offset,
-                                       group * nbytes + (j - 1) + offset);
-                               i = j - 1;
+                       print_number(i + offset);
+                       for (j = i; j < nbytes && !in_use (bitmap, j); j++)
+                               ;
+                       if (--j != i) {
+                               fputc('-', stdout);
+                               print_number(j + offset);
+                               i = j;
                        }
                        p = 1;
                }
@@ -86,126 +89,136 @@ static void print_free (unsigned long group, char * bitmap,
 static void list_desc (ext2_filsys fs)
 {
        unsigned long i;
+       long diff;
        blk_t   group_blk, next_blk;
-       char * block_bitmap = fs->block_map->bitmap;
-       char * inode_bitmap = fs->inode_map->bitmap;
-       int inode_blocks_per_group;
-       int group_desc_blocks;
+       blk_t   super_blk, old_desc_blk, new_desc_blk;
+       char *block_bitmap=NULL, *inode_bitmap=NULL;
+       int inode_blocks_per_group, old_desc_blocks, reserved_gdt;
+       int has_super;
+
+       if (fs->block_map)
+               block_bitmap = fs->block_map->bitmap;
+       if (fs->inode_map)
+               inode_bitmap = fs->inode_map->bitmap;
 
        inode_blocks_per_group = ((fs->super->s_inodes_per_group *
                                   EXT2_INODE_SIZE(fs->super)) +
                                  EXT2_BLOCK_SIZE(fs->super) - 1) /
                                 EXT2_BLOCK_SIZE(fs->super);
-       group_desc_blocks = ((fs->super->s_blocks_count -
-                             fs->super->s_first_data_block +
-                             EXT2_BLOCKS_PER_GROUP(fs->super) - 1) /
-                            EXT2_BLOCKS_PER_GROUP(fs->super) +
-                            EXT2_DESC_PER_BLOCK(fs->super) - 1) /
-                           EXT2_DESC_PER_BLOCK(fs->super);
-
-       printf ("\n");
+       reserved_gdt = fs->super->s_reserved_gdt_blocks;
+       fputc('\n', stdout);
        group_blk = fs->super->s_first_data_block;
+       if (fs->super->s_feature_incompat & EXT2_FEATURE_INCOMPAT_META_BG)
+               old_desc_blocks = fs->super->s_first_meta_bg;
+       else
+               old_desc_blocks = fs->desc_blocks;
        for (i = 0; i < fs->group_desc_count; i++) {
+               ext2fs_super_and_bgd_loc(fs, i, &super_blk, 
+                                        &old_desc_blk, &new_desc_blk, 0);
                next_blk = group_blk + fs->super->s_blocks_per_group;
                if (next_blk > fs->super->s_blocks_count)
                        next_blk = fs->super->s_blocks_count;
-               printf (opt_hex ? _("Group %lu: (Blocks 0x%04x -- 0x%04x)\n"):
-                        _("Group %lu: (Blocks %u -- %u)\n"), i,
-                       group_blk, next_blk -1 );
-               if (ext2fs_bg_has_super (fs, i))
-                       printf (opt_hex ? _("  %s Superblock at 0x%04x,"
-                               "  Group Descriptors at 0x%04x-0x%04x\n"):
-                               _("  %s Superblock at %u,"
-                               "  Group Descriptors at %u-%u\n"),
-                               i == 0 ? _("Primary") : _("Backup"),
-                               group_blk, group_blk + 1,
-                               group_blk + group_desc_blocks);
-               printf (opt_hex ? _("  Block bitmap at 0x%04x (+%d), "
-                       "Inode bitmap at 0x%04x (+%d)\n  "
-                       "Inode table at 0x%04x-0x%04x (+%d)\n"):
-                       _("  Block bitmap at %u (+%d), "
-                       "Inode bitmap at %u (+%d)\n  "
-                       "Inode table at %u-%u (+%d)\n"),
-                       fs->group_desc[i].bg_block_bitmap,
-                       fs->group_desc[i].bg_block_bitmap - group_blk,
-                       fs->group_desc[i].bg_inode_bitmap,
-                       fs->group_desc[i].bg_inode_bitmap - group_blk,
-                       fs->group_desc[i].bg_inode_table,
-                       fs->group_desc[i].bg_inode_table +
-                               inode_blocks_per_group - 1,
-                       fs->group_desc[i].bg_inode_table - group_blk);
-               printf (_("  %d free blocks, %d free inodes, %d directories\n"),
+               printf (_("Group %lu: (Blocks "), i);
+               printf(range_format, group_blk, next_blk - 1);
+               fputs(")\n", stdout);
+               has_super = ((i==0) || super_blk);
+               if (has_super) {
+                       printf (_("  %s superblock at "),
+                               i == 0 ? _("Primary") : _("Backup"));
+                       print_number(super_blk);
+               }
+               if (old_desc_blk) {
+                       printf(_(", Group descriptors at "));
+                       printf(range_format, old_desc_blk,
+                              old_desc_blk + old_desc_blocks - 1);
+                       if (reserved_gdt) {
+                               printf(_("\n  Reserved GDT blocks at "));
+                               printf(range_format, 
+                                      old_desc_blk + old_desc_blocks,
+                                      old_desc_blk + old_desc_blocks + 
+                                      reserved_gdt - 1);
+                       }
+               } else if (new_desc_blk) {
+                       fputc(has_super ? ',' : ' ', stdout);
+                       printf(_(" Group descriptor at "));
+                       print_number(new_desc_blk);
+                       has_super++;
+               }
+               if (has_super)
+                       fputc('\n', stdout);
+               fputs(_("  Block bitmap at "), stdout);
+               print_number(fs->group_desc[i].bg_block_bitmap);
+               diff = fs->group_desc[i].bg_block_bitmap - group_blk;
+               if (diff >= 0)
+                       printf(" (+%ld)", diff);
+               fputs(_(", Inode bitmap at "), stdout);
+               print_number(fs->group_desc[i].bg_inode_bitmap);
+               diff = fs->group_desc[i].bg_inode_bitmap - group_blk;
+               if (diff >= 0)
+                       printf(" (+%ld)", diff);
+               fputs(_("\n  Inode table at "), stdout);
+               printf(range_format, fs->group_desc[i].bg_inode_table,
+                      fs->group_desc[i].bg_inode_table +
+                      inode_blocks_per_group - 1);
+               diff = fs->group_desc[i].bg_inode_table - group_blk;
+               if (diff > 0)
+                       printf(" (+%ld)", diff);
+               printf (_("\n  %d free blocks, %d free inodes, "
+                         "%d directories\n"),
                        fs->group_desc[i].bg_free_blocks_count,
                        fs->group_desc[i].bg_free_inodes_count,
                        fs->group_desc[i].bg_used_dirs_count);
-               printf (_("  Free blocks: "));
-               print_free (i, block_bitmap, fs->super->s_blocks_per_group,
-                           fs->super->s_first_data_block);
-               block_bitmap += fs->super->s_blocks_per_group / 8;
-               printf ("\n");
-               printf (_("  Free inodes: "));
-               print_free (i, inode_bitmap, fs->super->s_inodes_per_group, 1);
-               inode_bitmap += fs->super->s_inodes_per_group / 8;
-               printf ("\n");
+               if (block_bitmap) {
+                       fputs(_("  Free blocks: "), stdout);
+                       print_free (i, block_bitmap,
+                                   fs->super->s_blocks_per_group,
+                                   fs->super->s_first_data_block);
+                       fputc('\n', stdout);
+                       block_bitmap += fs->super->s_blocks_per_group / 8;
+               }
+               if (inode_bitmap) {
+                       fputs(_("  Free inodes: "), stdout);
+                       print_free (i, inode_bitmap,
+                                   fs->super->s_inodes_per_group, 1);
+                       fputc('\n', stdout);
+                       inode_bitmap += fs->super->s_inodes_per_group / 8;
+               }
                group_blk = next_blk;
        }
 }
 
-static void list_bad_blocks(ext2_filsys fs)
+static void list_bad_blocks(ext2_filsys fs, int dump)
 {
        badblocks_list          bb_list = 0;
        badblocks_iterate       bb_iter;
        blk_t                   blk;
        errcode_t               retval;
+       const char              *header, *fmt;
 
        retval = ext2fs_read_bb_inode(fs, &bb_list);
        if (retval) {
                com_err("ext2fs_read_bb_inode", retval, "");
-               exit(1);
+               return;
        }
-       retval = badblocks_list_iterate_begin(bb_list, &bb_iter);
+       retval = ext2fs_badblocks_list_iterate_begin(bb_list, &bb_iter);
        if (retval) {
-               com_err("badblocks_list_iterate_begin", retval,
+               com_err("ext2fs_badblocks_list_iterate_begin", retval,
                        _("while printing bad block list"));
-               exit(1);
+               return;
        }
-       if (badblocks_list_iterate(bb_iter, &blk))
-               printf(_("Bad blocks: %d"), blk);
-       while (badblocks_list_iterate(bb_iter, &blk))
-               printf(", %d", blk);
-       badblocks_list_iterate_end(bb_iter);
-       printf("\n");
-}
-
-static void dump_bad_blocks(ext2_filsys fs)
-{
-       badblocks_list          bb_list = 0;
-       badblocks_iterate       bb_iter;
-       blk_t                   blk;
-       errcode_t               retval;
-
-       retval = ext2fs_read_bb_inode(fs, &bb_list);
-       if (retval) {
-               com_err("ext2fs_read_bb_inode", retval, "");
-               exit(1);
+       if (dump) {
+               header = fmt = "%d\n";
+       } else {
+               header =  _("Bad blocks: %d");
+               fmt = ", %d";
        }
-       retval = badblocks_list_iterate_begin(bb_list, &bb_iter);
-       if (retval) {
-               com_err("badblocks_list_iterate_begin", retval,
-                       _("while printing bad block list"));
-               exit(1);
+       while (ext2fs_badblocks_list_iterate(bb_iter, &blk)) {
+               printf(header ? header : fmt, blk);
+               header = 0;
        }
-       while (badblocks_list_iterate(bb_iter, &blk))
-               printf("%d\n", blk);
-       badblocks_list_iterate_end(bb_iter);
-}
-
-static int i386_byteorder(void)
-{
-       int one = 1;
-       char *cp = (char *) &one;
-
-       return (*cp == 1);
+       ext2fs_badblocks_list_iterate_end(bb_iter);
+       if (!dump)
+               fputc('\n', stdout);
 }
 
 static void print_journal_information(ext2_filsys fs)
@@ -213,7 +226,7 @@ static void print_journal_information(ext2_filsys fs)
        errcode_t       retval;
        char            buf[1024];
        char            str[80];
-       int             i;
+       unsigned int    i;
        journal_superblock_t    *jsb;
 
        /* Get the journal superblock */
@@ -231,20 +244,21 @@ static void print_journal_information(ext2_filsys fs)
                exit(1);
        }
 
-       fputs("\n", stdout);
-       printf("Journal block size:       %d\n", ntohl(jsb->s_blocksize));
-       printf("Journal length:           %d\n", ntohl(jsb->s_maxlen));
-       printf("Journal first block:      %d\n", ntohl(jsb->s_first));
-       printf("Journal sequence:         0x%08x\n", ntohl(jsb->s_sequence));
-       printf("Journal start:            %d\n", ntohl(jsb->s_start));
-       printf("Journal number of users:  %d\n", ntohl(jsb->s_nr_users));
+       printf(_("\nJournal block size:       %d\n"
+                "Journal length:           %d\n"
+                "Journal first block:      %d\n"
+                "Journal sequence:         0x%08x\n"
+                "Journal start:            %d\n"
+                "Journal number of users:  %d\n"),
+              ntohl(jsb->s_blocksize),  ntohl(jsb->s_maxlen),
+              ntohl(jsb->s_first), ntohl(jsb->s_sequence),
+              ntohl(jsb->s_start), ntohl(jsb->s_nr_users));
+
        for (i=0; i < ntohl(jsb->s_nr_users); i++) {
-               if (i)
-                       printf("                          ");
-               else
-                       printf("Journal users:            ");
                uuid_unparse(&jsb->s_users[i*16], str);
-               printf("%s\n", str);
+               printf(i ? "                          %s\n"
+                      : "Journal users:            %s\n",
+                      str);
        }
 }
 
@@ -264,13 +278,13 @@ int main (int argc, char ** argv)
 
 #ifdef ENABLE_NLS
        setlocale(LC_MESSAGES, "");
+       setlocale(LC_CTYPE, "");
        bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
        textdomain(NLS_CAT_NAME);
 #endif
        initialize_ext2_error_table();
-       fprintf (stderr, _("dumpe2fs %s, %s for EXT2 FS %s, %s\n"),
-                E2FSPROGS_VERSION, E2FSPROGS_DATE,
-                EXT2FS_VERSION, EXT2FS_DATE);
+       fprintf (stderr, "dumpe2fs %s (%s)\n", E2FSPROGS_VERSION,
+                E2FSPROGS_DATE);
        if (argc && *argv)
                program_name = *argv;
        
@@ -302,7 +316,7 @@ int main (int argc, char ** argv)
                                error_message(EXT2_ET_BASE));
                        exit(0);
                case 'x':
-                       opt_hex=1;
+                       num_format = "0x%04x";
                        break;
                default:
                        usage();
@@ -310,6 +324,7 @@ int main (int argc, char ** argv)
        }
        if (optind > argc - 1)
                usage();
+       sprintf(range_format, "%s-%s", num_format, num_format);
        device_name = argv[optind++];
        if (use_superblock && !use_blocksize)
                use_blocksize = 1024;
@@ -328,11 +343,12 @@ int main (int argc, char ** argv)
                exit (1);
        }
        if (print_badblocks) {
-               dump_bad_blocks(fs);
+               list_bad_blocks(fs, 1);
        } else {
                big_endian = ((fs->flags & EXT2_FLAG_SWAP_BYTES) != 0);
-               if (!i386_byteorder())
-                       big_endian = !big_endian;
+#ifdef WORDS_BIGENDIAN
+               big_endian = !big_endian;
+#endif
                if (big_endian)
                        printf(_("Note: This is a byte-swapped filesystem\n"));
                list_super (fs->super);
@@ -342,20 +358,18 @@ int main (int argc, char ** argv)
                        ext2fs_close(fs);
                        exit(0);
                }
-               list_bad_blocks (fs);
+               list_bad_blocks(fs, 0);
                if (header_only) {
                        ext2fs_close (fs);
                        exit (0);
                }
                retval = ext2fs_read_bitmaps (fs);
+               list_desc (fs);
                if (retval) {
-                       com_err (program_name, retval,
-                                _("while trying to read the bitmaps"),
-                                device_name);
-                       ext2fs_close (fs);
-                       exit (1);
+                       printf(_("\n%s: %s: error reading bitmaps: %s\n"),
+                              program_name, device_name,
+                              error_message(retval));
                }
-               list_desc (fs);
        }
        ext2fs_close (fs);
        exit (0);