disksize.c

   1 /*
   2  * disksize.c - Try to get the size of a disk.
   3  *
   4  * At present this relies on fseeko and such.  Could do something
   5  * smarter here like a binary search if this needs to be more portable.
   6  */
   7 #include <stdio.h>
   8 #include "disksize.h"
   9
  10 int get_disk_size(char *device, u64 *size)
  11 {
  12         FILE *fp = fopen(device, "r");
  13         if (!fp)
  14                 return 0;
  15
  16         fseeko(fp, 0, SEEK_END);
  17         *size = ftello(fp);
  18         return 1;
  19 }