Change the kernel dev_t, representing a pointer to a specinfo structure,
[dragonfly.git] / sys / boot / common / misc.c
CommitLineData
984263bc
MD
1/*-
2 * Copyright (c) 1998 Michael Smith <msmith@freebsd.org>
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 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
5ee58eed
MD
26 * $FreeBSD: src/sys/boot/common/misc.c,v 1.8 2003/08/25 23:30:41 obrien Exp $
27 * $DragonFly: src/sys/boot/common/misc.c,v 1.3 2003/11/10 06:08:31 dillon Exp $
984263bc
MD
28 */
29
30#include <string.h>
31#include <stand.h>
32#include <bootstrap.h>
33
34/*
35 * Concatenate the (argc) elements of (argv) into a single string, and return
36 * a copy of same.
37 */
38char *
39unargv(int argc, char *argv[])
40{
41 size_t hlong;
42 int i;
43 char *cp;
44
45 for (hlong = 0, i = 0, hlong = 0; i < argc; i++)
46 hlong += strlen(argv[i]) + 2;
47
48 if(hlong == 0)
49 return(NULL);
50
51 cp = malloc(hlong);
52 cp[0] = 0;
53 for (i = 0; i < argc; i++) {
54 strcat(cp, argv[i]);
55 if (i < (argc - 1))
56 strcat(cp, " ");
57 }
58
59 return(cp);
60}
61
62/*
63 * Get the length of a string in kernel space
64 */
65size_t
66strlenout(vm_offset_t src)
67{
68 char c;
69 size_t len;
70
71 for (len = 0; ; len++) {
72 archsw.arch_copyout(src++, &c, 1);
73 if (c == 0)
74 break;
75 }
76 return(len);
77}
78
79/*
80 * Make a duplicate copy of a string in kernel space
81 */
82char *
83strdupout(vm_offset_t str)
84{
85 char *result, *cp;
86
87 result = malloc(strlenout(str) + 1);
88 for (cp = result; ;cp++) {
89 archsw.arch_copyout(str++, cp, 1);
90 if (*cp == 0)
91 break;
92 }
93 return(result);
94}
95
96/*
97 * Display a region in traditional hexdump format.
98 */
99void
100hexdump(caddr_t region, size_t len)
101{
102 caddr_t line;
103 int x, c;
104 char lbuf[80];
105#define emit(fmt, args...) {sprintf(lbuf, fmt , ## args); pager_output(lbuf);}
106
107 pager_open();
108 for (line = region; line < (region + len); line += 16) {
109 emit("%08lx ", (long) line);
110
111 for (x = 0; x < 16; x++) {
112 if ((line + x) < (region + len)) {
113 emit("%02x ", *(u_int8_t *)(line + x));
114 } else {
115 emit("-- ");
116 }
117 if (x == 7)
118 emit(" ");
119 }
120 emit(" |");
121 for (x = 0; x < 16; x++) {
122 if ((line + x) < (region + len)) {
123 c = *(u_int8_t *)(line + x);
124 if ((c < ' ') || (c > '~')) /* !isprint(c) */
125 c = '.';
126 emit("%c", c);
127 } else {
128 emit(" ");
129 }
130 }
131 emit("|\n");
132 }
133 pager_close();
134}
135
136void
137dev_cleanup(void)
138{
139 int i;
140
141 /* Call cleanup routines */
142 for (i = 0; devsw[i] != NULL; ++i)
143 if (devsw[i]->dv_cleanup != NULL)
144 (devsw[i]->dv_cleanup)();
145}