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1.1 nbrk 1: /* $OpenBSD: uboot.c,v 1.5 2007/05/29 00:03:09 deraadt Exp $ */
2: /* $NetBSD: uboot.c,v 1.3 1997/04/27 21:17:13 thorpej Exp $ */
3:
4: /*-
5: * Copyright (c) 1982, 1986, 1990, 1993
6: * The Regents of the University of California. All rights reserved.
7: *
8: * Redistribution and use in source and binary forms, with or without
9: * modification, are permitted provided that the following conditions
10: * are met:
11: * 1. Redistributions of source code must retain the above copyright
12: * notice, this list of conditions and the following disclaimer.
13: * 2. Redistributions in binary form must reproduce the above copyright
14: * notice, this list of conditions and the following disclaimer in the
15: * documentation and/or other materials provided with the distribution.
16: * 3. Neither the name of the University nor the names of its contributors
17: * may be used to endorse or promote products derived from this software
18: * without specific prior written permission.
19: *
20: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30: * SUCH DAMAGE.
31: *
32: * @(#)boot.c 8.1 (Berkeley) 6/10/93
33: */
34:
35: #include <sys/param.h>
36: #include <sys/reboot.h>
37: #include <machine/exec.h>
38: #include <a.out.h>
39:
40: #include <lib/libsa/stand.h>
41:
42: #include "samachdep.h"
43:
44: /*
45: * Boot program... bits in `howto' determine whether boot stops to
46: * ask for system name. Boot device is derived from ROM provided
47: * information.
48: */
49:
50: char line[100];
51:
52: extern u_int opendev;
53: extern char *lowram;
54: extern int noconsole;
55:
56: extern const char version[];
57:
58: /*
59: * XXX UFS accepts a /, NFS doesn't.
60: */
61: char *name;
62: char *names[] = {
63: "bsd"
64: };
65: #define NUMNAMES (sizeof(names) / sizeof(char *))
66:
67: static int bdev, badapt, bctlr, bunit, bpart;
68:
69: void getbootdev(int *);
70:
71: int
72: main()
73: {
74: int currname = 0;
75:
76: printf("\n>> OpenBSD [%dKB] UNIFIED BOOT %s HP 9000/%s CPU\n",
77: (__LDPGSZ / 1024), version, getmachineid());
78: printf(">> Enter \"reset\" to reset system.\n");
79:
80: bdev = B_TYPE(bootdev);
81: badapt = B_ADAPTOR(bootdev);
82: bctlr = B_CONTROLLER(bootdev);
83: bunit = B_UNIT(bootdev);
84: bpart = B_PARTITION(bootdev);
85:
86: for (;;) {
87: name = names[currname++];
88: if (currname == NUMNAMES)
89: currname = 0;
90:
91: if (!noconsole) {
92: howto = 0;
93: getbootdev(&howto);
94: } else
95: printf(": %s\n", name);
96:
97: exec(name, lowram, howto);
98: printf("boot: %s\n", strerror(errno));
99: }
100: return (0);
101: }
102:
103: void
104: getbootdev(int *howto)
105: {
106: char c, *ptr = line;
107:
108: printf("Boot: [[[%s%d%c:]%s][-acds]] :- ",
109: devsw[bdev].dv_name, bctlr + (8 * badapt), 'a' + bpart, name);
110:
111: if (tgets(line)) {
112: if (strcmp(line, "reset") == 0) {
113: call_req_reboot(); /* reset machine */
114: printf("panic: can't reboot, halting\n");
115: asm("stop #0x2700");
116: }
117: while ((c = *ptr) != '\0') {
118: while (c == ' ')
119: c = *++ptr;
120: if (!c)
121: return;
122: if (c == '-')
123: while ((c = *++ptr) && c != ' ')
124: switch (c) {
125: case 'a':
126: *howto |= RB_ASKNAME;
127: continue;
128: case 'b':
129: *howto |= RB_HALT;
130: continue;
131: case 'c':
132: *howto |= RB_CONFIG;
133: continue;
134: case 'd':
135: *howto |= RB_KDB;
136: continue;
137: case 's':
138: *howto |= RB_SINGLE;
139: continue;
140: }
141: else {
142: name = ptr;
143: while ((c = *++ptr) && c != ' ');
144: if (c)
145: *ptr++ = 0;
146: }
147: }
148: } else
149: printf("\n");
150: }