test_infree.c

   1 #include <stdio.h>
   2 #include "fsck.h"
   3 #include "fsck_helper.h"
   4 #include "sofs09.h"
   5
   6 testresult_t test_infree (void)
   7 {
   8     testresult_t ret;
   9     uint32_t fret;
  10     SOSuperBlock *sb;
  11
  12     fetch_superblock(&sb);
  13
  14     /* number of free inodes found in the free inode list */
  15     uint32_t ifree;
  16
  17     /* current inode */
  18     SOInode inode;
  19
  20     /* index of the current inode */
  21     uint32_t inodeidx;
  22
  23     /* inode status from ictable */
  24     ic_t icstat;
  25
  26     ret = nice;
  27     ifree = 0;
  28     inodeidx = sb->ihead;
  29     while ((inodeidx != NULL_INODE) && (ret != corrupt)) {
  30         if (inodeidx < sb->itotal) {
  31             ictable_get(inodeidx, &icstat);
  32             switch (icstat) {
  33                 case bah:
  34                     fret = soReadInode(&inode, inodeidx);
  35                     if (fret < 0) FABORT(fret, "test_infree");
  36                     ifree++;
  37                     ictable_set(inodeidx, idle);
  38                     break;
  39                 case busy:
  40                     printf("Free inode list contains used inodes.\n");
  41                     ret = corrupt;
  42                     break;
  43                 case idle:
  44                     printf("Free inode list closes over itself.\n");
  45                     ret = corrupt;
  46                     break;
  47                 default:
  48                     printf("BUM! ictable has something strange in it.\n");
  49                     return corrupt;
  50                     break;
  51             }
  52         } else {
  53             printf("Free inode list has a member pointing to %d, which is "
  54                    "outside the list.\n", inodeidx);
  55             ret = corrupt;
  56         }
  57         inodeidx = inode.next;
  58     }
  59
  60     if ((ret != corrupt) && (ifree != sb->ifree)) {
  61         printf("ifree is incorrect.\n");
  62         ret = corrupt;
  63     }
  64
  65     return ret;
  66 }