4.3BSD-UWisc/src/sys/mdec/installboot.c

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/*
 * Copyright (c) 1980, 1986 Regents of the University of California.
 * All rights reserved.  The Berkeley software License Agreement
 * specifies the terms and conditions for redistribution.
 */

#ifndef lint
char copyright[] =
"@(#) Copyright (c) 1980, 1986 Regents of the University of California.\n\
 All rights reserved.\n";
#endif not lint

#ifndef lint
static char sccsid[] = "@(#)installboot.c	7.1 (Berkeley) 6/5/86";
#endif not lint

#include "../h/param.h"
#include "../h/fs.h"

char bootimage[BBSIZE];

main(argc, argv)
	int argc;
	char *argv[];
{
	int fd;

	if (argc != 4) {
		printf("Usage: installboot bootblock bootprog device\n");
		exit(1);
	}
	fd = open(argv[1], 0);
	if (fd < 0) {
		perror(argv[1]);
		exit(1);
	}
	read(fd, bootimage, DEV_BSIZE);
	close(fd);
	fd = open(argv[2], 0);
	if (fd < 0) {
		perror(argv[2]);
		exit(1);
	}
	read(fd, &bootimage[DEV_BSIZE], BBSIZE - DEV_BSIZE);
	close(fd);
	fd = open(argv[3], 1);
	if (fd < 0) {
		perror(argv[3]);
		exit(1);
	}
	write(fd, bootimage, BBSIZE);
	close(fd);
}