NetBSD/sys/arch/i386/stand/netboot/main.c

165 lines
4.0 KiB
C

/* $NetBSD: main.c,v 1.5 1997/09/17 18:52:41 drochner Exp $ */
/*
* Copyright (c) 1996
* Matthias Drochner. All rights reserved.
* Copyright (c) 1996
* Perry E. Metzger. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgements:
* This product includes software developed for the NetBSD Project
* by Matthias Drochner.
* This product includes software developed for the NetBSD Project
* by Perry E. Metzger.
* 4. The names of the authors may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#include <lib/libkern/libkern.h>
#include <lib/libsa/stand.h>
#include <libi386.h>
int errno;
extern char bootprog_name[], bootprog_rev[], bootprog_date[],
bootprog_maker[];
#define TIMEOUT 5
void command_help __P((char *));
void command_quit __P((char *));
void command_boot __P((char *));
struct bootblk_command commands[] = {
{ "help", command_help },
{ "?", command_help },
{ "quit", command_quit },
{ "boot", command_boot },
{ NULL, NULL },
};
#ifdef COMPAT_OLDBOOT
int
parsebootfile(fname, fsname, devname, unit, partition, file)
const char *fname;
char **fsname; /* out */
char **devname;/* out */
unsigned int *unit, *partition; /* out */
const char **file; /* out */
{
return (EINVAL);
}
int
biosdisk_gettype(f)
struct open_file *f;
{
return (0);
}
#endif
int
bootit(filename, howto)
const char *filename;
int howto;
{
if (exec_netbsd(filename, 0, howto) < 0)
printf("boot: %s\n", strerror(errno));
else
printf("boot returned\n");
return (-1);
}
static void
print_banner(void)
{
printf("\n"
">> %s, Revision %s\n"
">> (%s, %s)\n"
">> Memory: %d/%d k\n"
"Press return to boot now, any other key for boot menu\n"
"starting in ",
bootprog_name, bootprog_rev,
bootprog_maker, bootprog_date,
getbasemem(), getextmem());
}
int
main()
{
char c;
initio(CONSDEV_AUTO);
gateA20();
print_banner();
c = awaitkey(TIMEOUT, 1);
if ((c != '\r') && (c != '\n') && (c != '\0')) {
printf("type \"?\" or \"help\" for help.\n");
bootmenu(); /* does not return */
}
bootit("netbsd", 0);
/* if that fails, let BIOS look for boot device */
return (1);
}
/* ARGSUSED */
void
command_help(arg)
char *arg;
{
printf("commands are:\n"
"boot [filename] [-adrs]\n"
" (ex. \"netbsd.old -s\"\n"
"help|?\n"
"quit\n");
}
/* ARGSUSED */
void
command_quit(arg)
char *arg;
{
printf("Exiting... goodbye...\n");
exit(0);
}
void
command_boot(arg)
char *arg;
{
char *filename;
int howto;
if (parseboot(arg, &filename, &howto))
bootit(filename, howto);
}