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/* $OpenBSD: fdisk.c,v 1.24 1997/10/14 21:21:33 pefo Exp $ */
/*
* Copyright (c) 1997 Tobias Weingartner
* 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 acknowledgement:
* This product includes software developed by Tobias Weingartner.
* 4. The name of the author 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 <err.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <paths.h>
#include <sys/types.h>
#include <sys/fcntl.h>
#include <sys/disklabel.h>
#include "disk.h"
#include "user.h"
#define _PATH_MBR _PATH_BOOTDIR "mbr"
void
usage()
{
extern char * __progname;
fprintf(stderr, "usage: %s "
"[-ie] [-f mbrboot] [-c cyl] [-h head] [-s sect] disk\n"
"\t-i: initialize disk with virgin MBR\n"
"\t-e: edit MBRs on disk interactively\n"
"\t-f: specify non-standard MBR template\n"
"\t-chs: specify disk geometry\n"
"`disk' may be of the forms: sd0 or /dev/rsd0c.\n",
__progname);
exit(1);
}
int
main(argc, argv)
int argc;
char **argv;
{
int ch, fd;
int i_flag = 0, m_flag = 0;
int c_arg = 0, h_arg = 0, s_arg = 0;
disk_t disk;
char *mbrfile = _PATH_MBR;
mbr_t mbr;
char mbr_buf[DEV_BSIZE];
while((ch = getopt(argc, argv, "ief:c:h:s:")) != -1){
switch(ch){
case 'i':
i_flag = 1;
break;
case 'e':
m_flag = 1;
break;
case 'f':
mbrfile = optarg;
break;
case 'c':
c_arg = atoi(optarg);
break;
case 'h':
h_arg = atoi(optarg);
break;
case 's':
s_arg = atoi(optarg);
break;
default:
usage();
}
}
argc -= optind;
argv += optind;
/* Argument checking */
if(argc != 1)
usage();
else
disk.name = argv[0];
/* Get the geometry */
if(DISK_getmetrics(&disk) && !(c_arg | h_arg | s_arg))
errx(1, "Can't get disk geometry, please use [-c|h|s] to specify.");
/* Put in supplied geometry if there */
if(c_arg | h_arg | s_arg){
if(disk.bios != NULL){
if(c_arg) disk.bios->cylinders = c_arg;
if(h_arg) disk.bios->heads = h_arg;
if(s_arg) disk.bios->sectors = s_arg;
}else{
disk.bios = malloc(sizeof(DISK_metrics));
if(!c_arg) warn("Unknown number of cylinders per disk.");
if(!h_arg) warn("Unknown number of heads per cylinder.");
if(!s_arg) warn("Unknown number of sectors per track.");
disk.bios->cylinders = c_arg;
disk.bios->heads = h_arg;
disk.bios->sectors = s_arg;
}
}
/* Parse mbr template, to pass on later */
if((fd = open(mbrfile, O_RDONLY)) < 0)
err(1, "open mbr file");
MBR_read(fd, 0, mbr_buf);
close(fd);
MBR_parse(mbr_buf, &mbr);
/* Print out current MBRs on disk */
if((i_flag + m_flag) == 0)
exit(USER_print_disk(&disk));
/* Punt if no i or m */
if((i_flag + m_flag) != 1)
usage();
/* Now do what we are supposed to */
if(i_flag)
USER_init(&disk, &mbr);
if(m_flag)
USER_modify(&disk, &mbr, 0);
return(0);
}
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