/*
 * This C module is the main for c155-analyze-boot utility.
 */

#include <sys/types.h>
#include <sys/file.h>
#include <sys/stat.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <strings.h>
#include <unistd.h>
#include "../bootmatch/bootmatch.h"

extern struct bootmatch bootmatch_c155[];

#define	LENGTH_OF_INTEREST	0x2000

static u_char image[LENGTH_OF_INTEREST];

static void
read_bin_file(filename)
	char *filename;
{
	int fd;
	struct stat st;

	fd = open(filename, O_RDONLY);
	if (fd < 0) {
		perror(filename);
		exit(1);
	}
	fstat(fd, &st);
	if (!S_ISREG(st.st_mode)) {
		fprintf(stderr, "error: %s is not a regular file\n", filename);
		exit(1);
	}
	if (st.st_size < LENGTH_OF_INTEREST) {
		fprintf(stderr, "error: %s is too short\n", filename);
		exit(1);
	}
	read(fd, image, LENGTH_OF_INTEREST);
	close(fd);
}

main(argc, argv)
	char **argv;
{
	if (argc != 2) {
		fprintf(stderr, "usage: %s flashdump.bin\n", argv[0]);
		exit(1);
	}
	read_bin_file(argv[1]);
	if (check_for_match(image, bootmatch_c155))
		puts("ok");
	else
		puts("unknown");
	exit(0);
}