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/*
* ----------------------------------------------------------------------------
* "THE BEER-WARE LICENSE" (Revision 42):
* <phk@FreeBSD.org> wrote this file. As long as you retain this notice you
* can do whatever you want with this stuff. If we meet some day, and you think
* this stuff is worth it, you can buy me a beer in return. Poul-Henning Kamp
* ----------------------------------------------------------------------------
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <err.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/ioctl.h>
#include <sys/sun_disklabel.h>
#include <paths.h>
#include <errno.h>
#include "libdisk.h"
int
Write_Disk(const struct disk *d1)
{
struct sun_disklabel *sl;
struct chunk *c, *c1, *c2;
int i;
char *p;
u_long secpercyl;
u_short *sp1, *sp2, cksum;
char device[64];
int fd;
sl = calloc(sizeof *sl, 1);
c = d1->chunks;
c2 = c->part;
secpercyl = d1->bios_sect * d1->bios_hd;
sl->sl_pcylinders = c->size / secpercyl;
sl->sl_ncylinders = c2->size / secpercyl;
sl->sl_acylinders = sl->sl_pcylinders - sl->sl_ncylinders;
sl->sl_magic = SUN_DKMAGIC;
sl->sl_nsectors = d1->bios_sect;
sl->sl_ntracks = d1->bios_hd;
if (c->size > 4999 * 1024 * 2) {
sprintf(sl->sl_text, "FreeBSD%luG cyl %u alt %u hd %u sec %u",
(c->size + 1024 * 1024) / (2 * 1024 * 1024),
sl->sl_ncylinders, sl->sl_acylinders,
sl->sl_ntracks, sl->sl_nsectors);
} else {
sprintf(sl->sl_text, "FreeBSD%luM cyl %u alt %u hd %u sec %u",
(c->size + 1024) / (2 * 1024),
sl->sl_ncylinders, sl->sl_acylinders,
sl->sl_ntracks, sl->sl_nsectors);
}
sl->sl_interleave = 1;
sl->sl_sparespercyl = 0;
sl->sl_rpm = 3600;
for (c1 = c2->part; c1 != NULL; c1 = c1->next) {
p = c1->name;
p += strlen(p);
p--;
if (*p < 'a' || *p > 'h')
continue;
i = *p - 'a';
sl->sl_part[i].sdkp_cyloffset = c1->offset / secpercyl;
sl->sl_part[i].sdkp_nsectors = c1->size;
}
sp1 = (u_short *)sl;
sp2 = (u_short *)(sl + 1);
sl->sl_cksum = cksum = 0;
while (sp1 < sp2)
cksum ^= *sp1++;
sl->sl_cksum = cksum;
strcpy(device,_PATH_DEV);
strcat(device,d1->name);
fd = open(device,O_RDWR);
if (fd < 0) {
warn("open(%s) failed", device);
return (1);
}
write_block(fd, 0, sl, sizeof *sl);
close(fd);
return 0;
}
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