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

int
main (int argc, char *argv[]) {
unsigned short s;
if (argc > 1) {
filename = argv[1];
if ((fp = fopen (filename, "rb"))==NULL) {
fprintf (stderr, "Can't open %s.\n", filename);
exit (1);
}

fread (&s, sizeof (unsigned short), 1, fp);
fprintf (stdout, "s = %d\n", s);
}
return (0);
}

バイナリなのでこんな感じです．