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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 <err.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/ioctl.h>
#include <sys/disklabel.h>
#include <sys/diskpc98.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 chunk *c1)
{
struct disklabel *dl;
int i;
void *p;
u_char buf[BBSIZE];
for (i = 0; i < BBSIZE / 512; i++) {
if (!(p = read_block(fd, i + c1->offset, 512)))
return (1);
memcpy(buf + 512 * i, p, 512);
free(p);
}
if (new->boot1)
memcpy(buf, new->boot1, 512);
if (new->boot2)
memcpy(buf + 512, new->boot2, BBSIZE - 512);
dl = (struct disklabel *)(buf + 512 * LABELSECTOR + LABELOFFSET);
Fill_Disklabel(dl, new, c1);
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, i, j;
struct chunk *c1;
int ret = 0;
char device[64];
u_char *mbrblk;
struct pc98_partition *dp, work[NDOSPART];
int s[7];
int PC98_EntireDisk = 0;
strcpy(device, _PATH_DEV);
strcat(device, d1->name);
/* XXX - for entire FreeBSD(98) */
for (c1 = d1->chunks->part; c1; c1 = c1->next) {
if ((c1->type == freebsd) || (c1->offset == 0))
device[9] = 0;
}
fd = open(device, O_RDWR);
if (fd < 0) {
#ifdef DEBUG
warn("open(%s) failed", device);
#endif
return 1;
}
memset(s, 0, sizeof s);
if (!(mbrblk = read_block(fd, 1, d1->sector_size))) {
close (fd);
return (1);
}
dp = (struct pc98_partition *)(mbrblk + DOSPARTOFF);
memcpy(work, dp, sizeof work);
dp = work;
free(mbrblk);
for (c1 = d1->chunks->part; c1; c1 = c1->next) {
if (c1->type == unused)
continue;
if (!strcmp(c1->name, "X"))
continue;
j = c1->name[strlen(d1->name) + 1] - '1';
if (j < 0 || j > 7)
continue;
s[j]++;
if (c1->type == freebsd)
ret += Write_FreeBSD(fd, d1, c1);
i = c1->offset;
dp[j].dp_ssect = dp[j].dp_ipl_sct = i % d1->bios_sect;
i -= dp[j].dp_ssect;
i /= d1->bios_sect;
dp[j].dp_shd = dp[j].dp_ipl_head = i % d1->bios_hd;
i -= dp[j].dp_shd;
i /= d1->bios_hd;
dp[j].dp_scyl = dp[j].dp_ipl_cyl = i;
#ifdef DEBUG
printf("S:%lu = (%x/%x/%x)", c1->offset,
dp[j].dp_scyl, dp[j].dp_shd, dp[j].dp_ssect);
#endif
i = c1->end;
#if 1
dp[j].dp_esect = dp[j].dp_ehd = 0;
dp[j].dp_ecyl = i / (d1->bios_sect * d1->bios_hd);
#else
dp[j].dp_esect = i % d1->bios_sect;
i -= dp[j].dp_esect;
i /= d1->bios_sect;
dp[j].dp_ehd = i % d1->bios_hd;
i -= dp[j].dp_ehd;
i /= d1->bios_hd;
dp[j].dp_ecyl = i;
#endif
#ifdef DEBUG
printf(" E:%lu = (%x/%x/%x)\n", c1->end,
dp[j].dp_ecyl, dp[j].dp_ehd, dp[j].dp_esect);
#endif
dp[j].dp_mid = c1->subtype & 0xff;
dp[j].dp_sid = c1->subtype >> 8;
if (c1->flags & CHUNK_ACTIVE)
dp[j].dp_mid |= 0x80;
strncpy(dp[j].dp_name, c1->sname, 16);
}
j = 0;
for (i = 0; i < NDOSPART; i++) {
if (!s[i])
memset(dp + i, 0, sizeof *dp);
}
if (d1->bootipl)
write_block(fd, 0, d1->bootipl, d1->sector_size);
if (!(mbrblk = read_block(fd, 1, d1->sector_size))) {
close (fd);
return (1);
}
memcpy(mbrblk + DOSPARTOFF, dp, sizeof *dp * NDOSPART);
/* XXX - for entire FreeBSD(98) */
for (c1 = d1->chunks->part; c1; c1 = c1->next)
if (((c1->type == freebsd) || (c1->type == fat))
&& (c1->offset == 0))
PC98_EntireDisk = 1;
if (PC98_EntireDisk == 0)
write_block(fd, 1, mbrblk, d1->sector_size);
if (d1->bootmenu)
for (i = 0; i * d1->sector_size < d1->bootmenu_size; i++)
write_block(fd, 2 + i,
&d1->bootmenu[i * d1->sector_size],
d1->sector_size);
close(fd);
return 0;
}
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