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     uint32_t ifree;
  12     SOInode inode;
  13     uint32_t inodeidx;
  14     ic_t icstat;
  15
  16     ret = nice;
  17
  18     fetch_superblock(&sb);
  19
  20     ifree = 0;
  21     inodeidx = sb->ihead;
  22     while ((inodeidx != NULL_INODE) && (ret != corrupt)) {
  23         if (inodeidx < sb->itotal) {
  24             ictable_get(inodeidx, &icstat);
  25             switch (icstat) {
  26                 case bah:
  27                     fret = soReadInode(&inode, inodeidx);
  28                     if (fret < 0) FABORT(fret, "test_infree");
  29                     ifree++;
  30                     ictable_set(inodeidx, idle);
  31                     break;
  32                 case busy:
  33                     printf("Free inode list contains used inodes.\n");
  34                     ret = corrupt;
  35                     break;
  36                 case idle:
  37                     printf("Free inode list closes over itself.\n");
  38                     ret = corrupt;
  39                     break;
  40                 default:
  41                     printf("BUM! ictable has something strange in it.\n");
  42                     return corrupt;
  43                     break;
  44             }
  45         } else {
  46             printf("Free inode list has a member pointing to %d, which is "
  47                    "outside the list.\n", inodeidx);
  48             ret = corrupt;
  49         }
  50         inodeidx = inode.next;
  51     }
  52
  53     if ((ret != corrupt) && (ifree != sb->ifree)) {
  54         printf("ifree is incorrect.\n");
  55         ret = corrupt;
  56     }
  57
  58     return ret;
  59 }