2 * Copyright (c) 1998 Michael Smith <msmith@freebsd.org>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
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
26 * $FreeBSD: src/sys/boot/common/misc.c,v 1.6.2.1 2000/07/06 00:34:02 ps Exp $
31 #include <bootstrap.h>
34 * Concatenate the (argc) elements of (argv) into a single string, and return
38 unargv(int argc, char *argv[])
44 for (hlong = 0, i = 0, hlong = 0; i < argc; i++)
45 hlong += strlen(argv[i]) + 2;
52 for (i = 0; i < argc; i++) {
62 * Get the length of a string in kernel space
65 strlenout(vm_offset_t src)
70 for (len = 0; ; len++) {
71 archsw.arch_copyout(src++, &c, 1);
79 * Make a duplicate copy of a string in kernel space
82 strdupout(vm_offset_t str)
86 result = malloc(strlenout(str) + 1);
87 for (cp = result; ;cp++) {
88 archsw.arch_copyout(str++, cp, 1);
96 * Display a region in traditional hexdump format.
99 hexdump(caddr_t region, size_t len)
104 #define emit(fmt, args...) {sprintf(lbuf, fmt , ## args); pager_output(lbuf);}
107 for (line = region; line < (region + len); line += 16) {
108 emit("%08lx ", (long) line);
110 for (x = 0; x < 16; x++) {
111 if ((line + x) < (region + len)) {
112 emit("%02x ", *(u_int8_t *)(line + x));
120 for (x = 0; x < 16; x++) {
121 if ((line + x) < (region + len)) {
122 c = *(u_int8_t *)(line + x);
123 if ((c < ' ') || (c > '~')) /* !isprint(c) */
140 /* Call cleanup routines */
141 for (i = 0; devsw[i] != NULL; ++i)
142 if (devsw[i]->dv_cleanup != NULL)
143 (devsw[i]->dv_cleanup)();