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1.1 root 1: /*
2: * Copyright (c) 1980, 1986, 1990 The Regents of the University of California.
3: * All rights reserved.
4: *
5: * Redistribution and use in source and binary forms, with or without
6: * modification, are permitted provided that the following conditions
7: * are met:
8: * 1. Redistributions of source code must retain the above copyright
9: * notice, this list of conditions and the following disclaimer.
10: * 2. Redistributions in binary form must reproduce the above copyright
11: * notice, this list of conditions and the following disclaimer in the
12: * documentation and/or other materials provided with the distribution.
13: * 3. All advertising materials mentioning features or use of this software
14: * must display the following acknowledgement:
15: * This product includes software developed by the University of
16: * California, Berkeley and its contributors.
17: * 4. Neither the name of the University nor the names of its contributors
18: * may be used to endorse or promote products derived from this software
19: * without specific prior written permission.
20: *
21: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31: * SUCH DAMAGE.
32: *
33: * @(#)installboot.c 7.2 (Berkeley) 12/16/90
34: */
35:
36: #ifndef lint
37: char copyright[] =
38: "@(#) Copyright (c) 1980, 1986, 1990 The Regents of the University of California.\n\
39: All rights reserved.\n";
40: #endif /* not lint */
41:
42: #ifndef lint
43: static char sccsid[] = "@(#)installboot.c 7.2 (Berkeley) 12/16/90";
44: #endif /* not lint */
45:
46: #include "sys/param.h"
47: #include "ufs/fs.h"
48:
49: char block[1024];
50: int maxbootsize = 16 * 7 * 512; /* XXX */
51:
52: /*
53: * HPs are a kludge.
54: * The boot program won't fit in the boot area of a file system so we
55: * have to place it outside the file systems. By convention, this means
56: * that if the 'a' partition is being used for '/', it is offset one
57: * cylinder into the disk and the boot program goes into that one cylinder.
58: * Also by convention, the 'c' partition is defined to be the entire disk
59: * including this boot cylinder. If these conventions are not adhered to,
60: * the potential for disaster is enormous.
61: */
62: main(argc, argv)
63: int argc;
64: char *argv[];
65: {
66: int ifd, ofd, len;
67: char *dev, *standalonecode;
68: int bsize = 1024;
69:
70: if (argc != 3)
71: usage();
72: dev = argv[2];
73: len = strlen(dev);
74: if (dev[len-1] != 'c')
75: usage();
76: standalonecode = argv[1];
77: ifd = open(standalonecode, 0);
78: if (ifd < 0) {
79: perror(standalonecode);
80: exit(1);
81: }
82: ofd = open(dev, 1);
83: if (ofd < 0) {
84: perror(dev);
85: exit(1);
86: }
87: while ((len = read(ifd, block, bsize)) > 0) {
88: if ((maxbootsize -= bsize) < 0) {
89: printf("%s: too big\n", standalonecode);
90: exit(2);
91: }
92: if (len < bsize)
93: bzero(&block[len], bsize-len);
94: if (write(ofd, block, bsize) != bsize) {
95: perror(dev);
96: exit(2);
97: }
98: }
99: if (len < 0) {
100: perror(standalonecode);
101: exit(2);
102: }
103: exit(0);
104: }
105:
106: usage()
107: {
108: printf("Usage: installboot bootprog device\n");
109: printf("where:\n");
110: printf("\t\"bootprog\" is a LIF format file < %d bytes long\n",
111: maxbootsize);
112: printf("\t\"device\" must be the 'c' partition of a bootable disk\n");
113: printf("WARNING!! If the 'c' partition contains a file system, %s\n",
114: "DON'T RUN THIS!!");
115: exit(1);
116: }
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