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- /*
- * Copyright (c) 1980, 1986, 1990 The Regents of the University of California.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * @(#)installboot.c 7.2 (Berkeley) 12/16/90
- */
-
- #ifndef lint
- char copyright[] =
- "@(#) Copyright (c) 1980, 1986, 1990 The Regents of the University of California.\n\
- All rights reserved.\n";
- #endif /* not lint */
-
- #ifndef lint
- static char sccsid[] = "@(#)installboot.c 7.2 (Berkeley) 12/16/90";
- #endif /* not lint */
-
- #include "sys/param.h"
- #include "ufs/fs.h"
-
- char block[1024];
- int maxbootsize = 16 * 7 * 512; /* XXX */
-
- /*
- * HPs are a kludge.
- * The boot program won't fit in the boot area of a file system so we
- * have to place it outside the file systems. By convention, this means
- * that if the 'a' partition is being used for '/', it is offset one
- * cylinder into the disk and the boot program goes into that one cylinder.
- * Also by convention, the 'c' partition is defined to be the entire disk
- * including this boot cylinder. If these conventions are not adhered to,
- * the potential for disaster is enormous.
- */
- main(argc, argv)
- int argc;
- char *argv[];
- {
- int ifd, ofd, len;
- char *dev, *standalonecode;
- int bsize = 1024;
-
- if (argc != 3)
- usage();
- dev = argv[2];
- len = strlen(dev);
- if (dev[len-1] != 'c')
- usage();
- standalonecode = argv[1];
- ifd = open(standalonecode, 0);
- if (ifd < 0) {
- perror(standalonecode);
- exit(1);
- }
- ofd = open(dev, 1);
- if (ofd < 0) {
- perror(dev);
- exit(1);
- }
- while ((len = read(ifd, block, bsize)) > 0) {
- if ((maxbootsize -= bsize) < 0) {
- printf("%s: too big\n", standalonecode);
- exit(2);
- }
- if (len < bsize)
- bzero(&block[len], bsize-len);
- if (write(ofd, block, bsize) != bsize) {
- perror(dev);
- exit(2);
- }
- }
- if (len < 0) {
- perror(standalonecode);
- exit(2);
- }
- exit(0);
- }
-
- usage()
- {
- printf("Usage: installboot bootprog device\n");
- printf("where:\n");
- printf("\t\"bootprog\" is a LIF format file < %d bytes long\n",
- maxbootsize);
- printf("\t\"device\" must be the 'c' partition of a bootable disk\n");
- printf("WARNING!! If the 'c' partition contains a file system, %s\n",
- "DON'T RUN THIS!!");
- exit(1);
- }
-