com32/gpllib/disk/swsusp.c

   1 #include <stdlib.h>
   2 #include <string.h>
   3
   4 #include <disk/swsusp.h>
   5 #include <disk/read.h>
   6 #include <disk/geom.h>
   7
   8 /**
   9  * swsusp_check - check if a (swap) partition contains the swsusp signature
  10  * @drive_info: driveinfo struct describing the disk containing the partition
  11  * @ptab;       Partition table of the partition
  12  **/
  13 int swsusp_check(struct driveinfo *drive_info, struct part_entry *ptab)
  14 {
  15     struct swsusp_header header_p;
  16     int offset;
  17     int found;
  18
  19     /* Read first page of the swap device */
  20     offset = ptab->start_lba;
  21     if (read_sectors(drive_info, &header_p, offset, PAGE_SIZE / SECTOR) == -1) {
  22         return -1;
  23     } else {
  24         found = !memcmp(SWSUSP_SIG, header_p.sig, 10);
  25         return found;
  26     }
  27 }