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
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
31 #include <sys/param.h>
32 #include <sys/reboot.h>
33 #include <sys/linker.h>
36 #include "bootstrap.h"
37 #include "libuserboot.h"
40 bi_getboothowto(char *kargs)
43 char *curpos, *next, *string;
55 if (!active && (*cp == '-')) {
99 /* get equivalents from the environment */
100 for (i = 0; howto_names[i].ev != NULL; i++)
101 if (getenv(howto_names[i].ev) != NULL)
102 howto |= howto_names[i].mask;
104 /* Enable selected consoles */
105 string = next = strdup(getenv("console"));
107 while (next != NULL) {
108 curpos = strsep(&next, " ,");
111 if (!strcmp(curpos, "vidconsole"))
113 else if (!strcmp(curpos, "comconsole"))
115 else if (!strcmp(curpos, "nullconsole"))
119 if (vidconsole && (howto & RB_SERIAL))
120 howto |= RB_MULTIPLE;
123 * XXX: Note that until the kernel is ready to respect multiple consoles
124 * for the boot messages, the first named console is the primary console
126 if (!strcmp(string, "vidconsole"))
135 bi_setboothowto(int howto)
139 for (i = 0; howto_names[i].ev != NULL; i++)
140 if (howto & howto_names[i].mask)
141 setenv(howto_names[i].ev, "YES", 1);
145 * Copy the environment into the load area starting at (addr).
146 * Each variable is formatted as <name>=<value>, with a single nul
147 * separating each variable, and a double nul terminating the environment.
150 bi_copyenv(vm_offset_t addr)
154 /* traverse the environment */
155 for (ep = environ; ep != NULL; ep = ep->ev_next) {
156 CALLBACK(copyin, ep->ev_name, addr, strlen(ep->ev_name));
157 addr += strlen(ep->ev_name);
158 CALLBACK(copyin, "=", addr, 1);
160 if (ep->ev_value != NULL) {
161 CALLBACK(copyin, ep->ev_value, addr, strlen(ep->ev_value));
162 addr += strlen(ep->ev_value);
164 CALLBACK(copyin, "", addr, 1);
167 CALLBACK(copyin, "", addr, 1);