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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: *
1.1.1.2 ! root 33: * from: @(#)installboot.c 7.2 (Berkeley) 12/16/90
! 34: * installboot.c,v 1.2 1993/05/22 07:59:00 cgd Exp
1.1 root 35: */
36:
37: #ifndef lint
38: char copyright[] =
1.1.1.2 ! root 39: "Copyright (c) 1980, 1986, 1990 The Regents of the University of California.\n\
1.1 root 40: All rights reserved.\n";
41: #endif /* not lint */
42:
43: #ifndef lint
1.1.1.2 ! root 44: /* from: static char sccsid[] = "@(#)installboot.c 7.2 (Berkeley) 12/16/90"; */
! 45: static char rcsid[] = "installboot.c,v 1.2 1993/05/22 07:59:00 cgd Exp";
1.1 root 46: #endif /* not lint */
47:
48: #include "sys/param.h"
49: #include "ufs/fs.h"
50:
51: char block[1024];
52: int maxbootsize = 16 * 7 * 512; /* XXX */
53:
54: /*
55: * HPs are a kludge.
56: * The boot program won't fit in the boot area of a file system so we
57: * have to place it outside the file systems. By convention, this means
58: * that if the 'a' partition is being used for '/', it is offset one
59: * cylinder into the disk and the boot program goes into that one cylinder.
60: * Also by convention, the 'c' partition is defined to be the entire disk
61: * including this boot cylinder. If these conventions are not adhered to,
62: * the potential for disaster is enormous.
63: */
64: main(argc, argv)
65: int argc;
66: char *argv[];
67: {
68: int ifd, ofd, len;
69: char *dev, *standalonecode;
70: int bsize = 1024;
71:
72: if (argc != 3)
73: usage();
74: dev = argv[2];
75: len = strlen(dev);
76: if (dev[len-1] != 'c')
77: usage();
78: standalonecode = argv[1];
79: ifd = open(standalonecode, 0);
80: if (ifd < 0) {
81: perror(standalonecode);
82: exit(1);
83: }
84: ofd = open(dev, 1);
85: if (ofd < 0) {
86: perror(dev);
87: exit(1);
88: }
89: while ((len = read(ifd, block, bsize)) > 0) {
90: if ((maxbootsize -= bsize) < 0) {
91: printf("%s: too big\n", standalonecode);
92: exit(2);
93: }
94: if (len < bsize)
95: bzero(&block[len], bsize-len);
96: if (write(ofd, block, bsize) != bsize) {
97: perror(dev);
98: exit(2);
99: }
100: }
101: if (len < 0) {
102: perror(standalonecode);
103: exit(2);
104: }
105: exit(0);
106: }
107:
108: usage()
109: {
110: printf("Usage: installboot bootprog device\n");
111: printf("where:\n");
112: printf("\t\"bootprog\" is a LIF format file < %d bytes long\n",
113: maxbootsize);
114: printf("\t\"device\" must be the 'c' partition of a bootable disk\n");
115: printf("WARNING!! If the 'c' partition contains a file system, %s\n",
116: "DON'T RUN THIS!!");
117: exit(1);
118: }
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