d6e2e32b6f
moment. We were cleaning up after PXE too early and the module dependancy code would not be able to load any files if it needed too.
145 lines
3.3 KiB
C
145 lines
3.3 KiB
C
/*-
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* Copyright (c) 1998 Michael Smith <msmith@freebsd.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <string.h>
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#include <stand.h>
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#include <bootstrap.h>
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/*
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* Concatenate the (argc) elements of (argv) into a single string, and return
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* a copy of same.
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*/
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char *
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unargv(int argc, char *argv[])
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{
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size_t hlong;
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int i;
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char *cp;
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for (hlong = 0, i = 0, hlong = 0; i < argc; i++)
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hlong += strlen(argv[i]) + 2;
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if(hlong == 0)
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return(NULL);
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cp = malloc(hlong);
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cp[0] = 0;
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for (i = 0; i < argc; i++) {
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strcat(cp, argv[i]);
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if (i < (argc - 1))
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strcat(cp, " ");
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}
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return(cp);
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}
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/*
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* Get the length of a string in kernel space
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*/
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size_t
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strlenout(vm_offset_t src)
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{
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char c;
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size_t len;
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for (len = 0; ; len++) {
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archsw.arch_copyout(src++, &c, 1);
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if (c == 0)
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break;
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}
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return(len);
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}
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/*
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* Make a duplicate copy of a string in kernel space
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*/
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char *
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strdupout(vm_offset_t str)
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{
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char *result, *cp;
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result = malloc(strlenout(str) + 1);
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for (cp = result; ;cp++) {
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archsw.arch_copyout(str++, cp, 1);
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if (*cp == 0)
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break;
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}
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return(result);
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}
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/*
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* Display a region in traditional hexdump format.
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*/
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void
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hexdump(caddr_t region, size_t len)
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{
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caddr_t line;
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int x, c;
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char lbuf[80];
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#define emit(fmt, args...) {sprintf(lbuf, fmt , ## args); pager_output(lbuf);}
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pager_open();
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for (line = region; line < (region + len); line += 16) {
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emit("%08lx ", (long) line);
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for (x = 0; x < 16; x++) {
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if ((line + x) < (region + len)) {
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emit("%02x ", *(u_int8_t *)(line + x));
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} else {
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emit("-- ");
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}
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if (x == 7)
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emit(" ");
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}
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emit(" |");
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for (x = 0; x < 16; x++) {
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if ((line + x) < (region + len)) {
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c = *(u_int8_t *)(line + x);
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if ((c < ' ') || (c > '~')) /* !isprint(c) */
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c = '.';
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emit("%c", c);
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} else {
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emit(" ");
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}
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}
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emit("|\n");
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}
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pager_close();
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}
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void
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dev_cleanup(void)
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{
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int i;
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/* Call cleanup routines */
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for (i = 0; devsw[i] != NULL; ++i)
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if (devsw[i]->dv_cleanup != NULL)
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(devsw[i]->dv_cleanup)();
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}
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