/*
 * Reads HDF5 file "ublock.h5" that contains a user
 * block of size 512. Type "h5dump -B" on the file to
 * see the size of the user block, or call H5Pget_userblock
 * to obtain the size in an application.
 */

#include <stdio.h>
#include <stdlib.h>


int main(void) {
   int i;
   unsigned char buffer[512];
   size_t ret;

   FILE *fp = fopen("ublock.h5", "r");
   if (!fp) {
       perror("fopen");
       return EXIT_FAILURE;
   }

   ret = fread(buffer, 1, 512, fp);

   printf ("\nContents of User Block:\n");
   for (i=0;i<512;i++)
     printf("%c", buffer[i]);

   printf("\n");

   fclose(fp);

}