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/* $OpenBSD: boot.c,v 1.13 2014/02/20 20:34:27 miod Exp $ */
/* $NetBSD: boot.c,v 1.2 1995/09/23 03:42:52 gwr Exp $ */
/*-
* Copyright (c) 1982, 1986, 1990, 1993
* The Regents of the University of California. 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. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
*
* @(#)boot.c 8.1 (Berkeley) 6/10/93
*/
#include <sys/param.h>
#include <sys/reboot.h>
#include <sys/stat.h>
#define _KERNEL
#include <sys/fcntl.h>
#undef _KERNEL
#include <machine/prom.h>
#include "stand.h"
#include "libsa.h"
int loadrandom(const char *, char *, size_t);
int debug;
int errno;
extern char *version;
extern char rnddata[BOOTRANDOM_MAX];
char line[80];
int
main()
{
char *cp, *file;
int flag, ret;
int ask = 0;
int rnd_loaded = 0;
printf(">> OpenBSD MVME%x bootsd [%s]\n", bugargs.cputyp, version);
ret = parse_args(&file, &flag);
for (;;) {
if (ask) {
printf("boot: ");
gets(line);
if (line[0]) {
bugargs.arg_start = line;
cp = line;
while (cp < (line + sizeof(line) -1) && *cp)
cp++;
bugargs.arg_end = cp;
ret = parse_args(&file, &flag);
}
}
if (ret) {
printf("boot: -q returning to MVME-Bug\n");
break;
}
if (rnd_loaded == 0)
rnd_loaded = loadrandom(BOOTRANDOM, rnddata,
sizeof(rnddata));
exec_mvme(file, flag);
printf("boot: %s: %s\n", file, strerror(errno));
ask = 1;
}
return(0);
}
int
loadrandom(const char *name, char *buf, size_t buflen)
{
struct stat sb;
int fd;
int rc = 0;
fd = open(name, O_RDONLY);
if (fd == -1) {
if (errno != EPERM)
printf("cannot open %s: %s\n", name, strerror(errno));
return 0;
}
if (fstat(fd, &sb) == -1 || sb.st_uid != 0 || !S_ISREG(sb.st_mode) ||
(sb.st_mode & (S_IWOTH|S_IROTH)))
goto fail;
(void) read(fd, buf, buflen);
rc = 1;
fail:
close(fd);
return rc;
}
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