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

int main(int argc, char *argv[])
{
	int offset;
	int size;
	int i;
	unsigned char byte;
	FILE *rw;
	
	if (argc < 3) {
		fprintf(stderr, "Usage: %s file address_of_header\n", argv[0]);
		exit(1);
	}
	if ((rw = fopen(argv[1], "rb")) == NULL) {
		fprintf(stderr, "Could not open file: %s\n", argv[1]);
		exit(1);
	}
	sscanf(argv[2], "%X", &offset);

	fseek(rw, offset, 0);
	fseek(rw, 4, SEEK_CUR);
	fread(&size, 4, 1, rw);
	fseek(rw, 4, SEEK_CUR);
	offset += 12;

	for (i = 0; i < size; i++) {
		if ((i % 16) == 0)
			printf("\n");
		byte = getc(rw);
		printf("%02X ", byte);
	}
	printf("\n");

	return 0;
}