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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 <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/ioctl.h>
#include <sys/disklabel.h>
#include <sys/diskslice.h>
#include <sys/diskmbr.h>
#include <paths.h>
#include "libdisk.h"
/* XXX: A lot of hardcoded 512s probably should be foo->sector_size;
I'm not sure which, so I leave it like it worked before. --schweikh */
static int
Write_FreeBSD(int fd, const struct disk *new, const struct disk *old, const struct chunk *c1)
{
struct disklabel *dl;
int i;
void *p;
u_char buf[BBSIZE];
u_long *lp, sum;
for(i = 0; i < BBSIZE/512; i++) {
p = read_block(fd, i + c1->offset, 512);
memcpy(buf + 512 * i, p, 512);
free(p);
}
if(new->boot1)
memcpy(buf + 512, new->boot1, BBSIZE-512);
dl = (struct disklabel *)(buf + 512 * LABELSECTOR + LABELOFFSET);
Fill_Disklabel(dl, new, old, c1);
/*
* Tell SRM where the bootstrap is.
*/
lp = (u_long *)buf;
lp[60] = 15;
lp[61] = 1;
lp[62] = 0;
/*
* Generate the bootblock checksum for the SRM console.
*/
for (lp = (u_long *)buf, i = 0, sum = 0; i < 63; i++)
sum += lp[i];
lp[63] = sum;
for(i=0;i<BBSIZE/512;i++) {
write_block(fd, i + c1->offset, buf + 512 * i, 512);
}
return 0;
}
int
Write_Disk(const struct disk *d1)
{
int fd;
struct disk *old = 0;
struct chunk *c1;
int ret = 0;
char device[64];
u_char *mbr;
struct dos_partition *dp,work[NDOSPART];
int s[4];
strcpy(device,_PATH_DEV);
strcat(device,d1->name);
fd = open(device,O_RDWR);
if (fd < 0) {
#ifdef DEBUG
warn("open(%s) failed", device);
#endif
return 1;
}
memset(s,0,sizeof s);
mbr = read_block(fd, 0, d1->sector_size);
dp = (struct dos_partition*)(mbr + DOSPARTOFF);
memcpy(work, dp, sizeof work);
dp = work;
free(mbr);
for (c1 = d1->chunks->part; c1; c1 = c1->next) {
if (c1->type == unused) continue;
if (!strcmp(c1->name, "X")) continue;
if (c1->type == freebsd)
ret += Write_FreeBSD(fd, d1, old, c1);
}
close(fd);
return 0;
}
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