113 lines
3.2 KiB
C
113 lines
3.2 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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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <stand.h>
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#include <sys/param.h>
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#include <sys/reboot.h>
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#include <sys/boot.h>
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#include <sys/linker.h>
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#include "bootstrap.h"
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#include "libi386.h"
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#include "btxv86.h"
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int
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bi_getboothowto(char *kargs)
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{
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char *curpos, *next, *string;
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int howto;
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int vidconsole;
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howto = boot_parse_cmdline(kargs);
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howto |= boot_env_to_howto();
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/* Enable selected consoles */
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string = next = strdup(getenv("console"));
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vidconsole = 0;
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while (next != NULL) {
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curpos = strsep(&next, " ,");
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if (*curpos == '\0')
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continue;
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if (!strcmp(curpos, "vidconsole"))
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vidconsole = 1;
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else if (!strcmp(curpos, "comconsole"))
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howto |= RB_SERIAL;
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else if (!strcmp(curpos, "nullconsole"))
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howto |= RB_MUTE;
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}
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if (vidconsole && (howto & RB_SERIAL))
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howto |= RB_MULTIPLE;
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/*
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* XXX: Note that until the kernel is ready to respect multiple consoles
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* for the boot messages, the first named console is the primary console
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*/
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if (!strcmp(string, "vidconsole"))
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howto &= ~RB_SERIAL;
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free(string);
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return(howto);
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}
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void
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bi_setboothowto(int howto)
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{
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boot_howto_to_env(howto);
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}
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/*
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* Copy the environment into the load area starting at (addr).
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* Each variable is formatted as <name>=<value>, with a single nul
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* separating each variable, and a double nul terminating the environment.
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*/
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vm_offset_t
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bi_copyenv(vm_offset_t addr)
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{
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struct env_var *ep;
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/* traverse the environment */
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for (ep = environ; ep != NULL; ep = ep->ev_next) {
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i386_copyin(ep->ev_name, addr, strlen(ep->ev_name));
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addr += strlen(ep->ev_name);
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i386_copyin("=", addr, 1);
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addr++;
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if (ep->ev_value != NULL) {
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i386_copyin(ep->ev_value, addr, strlen(ep->ev_value));
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addr += strlen(ep->ev_value);
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}
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i386_copyin("", addr, 1);
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addr++;
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}
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i386_copyin("", addr, 1);
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addr++;
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return(addr);
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}
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