summaryrefslogtreecommitdiffstats
path: root/lib/libdisk/write_amd64_disk.c
diff options
context:
space:
mode:
Diffstat (limited to 'lib/libdisk/write_amd64_disk.c')
-rw-r--r--lib/libdisk/write_amd64_disk.c87
1 files changed, 45 insertions, 42 deletions
diff --git a/lib/libdisk/write_amd64_disk.c b/lib/libdisk/write_amd64_disk.c
index 15808c8..168e1a5 100644
--- a/lib/libdisk/write_amd64_disk.c
+++ b/lib/libdisk/write_amd64_disk.c
@@ -23,34 +23,35 @@ __FBSDID("$FreeBSD$");
#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 */
+/*
+ * 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)
+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];
- for(i = 0; i < BBSIZE/512; i++) {
+ 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)
+ if (new->boot1)
memcpy(buf, new->boot1, 512);
- if(new->boot2)
- memcpy(buf + 512, new->boot2, BBSIZE-512);
+ if (new->boot2)
+ memcpy(buf + 512, new->boot2, BBSIZE - 512);
dl = (struct disklabel *)(buf + 512 * LABELSECTOR + LABELOFFSET);
Fill_Disklabel(dl, new, old, c1);
-
- for(i=0;i<BBSIZE/512;i++) {
+ for (i = 0; i < BBSIZE / 512; i++)
write_block(fd, i + c1->offset, buf + 512 * i, 512);
- }
return 0;
}
@@ -58,11 +59,12 @@ Write_FreeBSD(int fd, const struct disk *new, const struct disk *old, const stru
static void
Write_Int32(u_int32_t *p, u_int32_t v)
{
- u_int8_t *bp = (u_int8_t *)p;
- bp[0] = (v >> 0) & 0xff;
- bp[1] = (v >> 8) & 0xff;
- bp[2] = (v >> 16) & 0xff;
- bp[3] = (v >> 24) & 0xff;
+ u_int8_t *bp = (u_int8_t *)p;
+
+ bp[0] = (v >> 0) & 0xff;
+ bp[1] = (v >> 8) & 0xff;
+ bp[2] = (v >> 16) & 0xff;
+ bp[3] = (v >> 24) & 0xff;
}
/*
@@ -71,19 +73,19 @@ Write_Int32(u_int32_t *p, u_int32_t v)
static void
Cfg_Boot_Mgr(u_char *mbr, int edd)
{
- if (mbr[0x1b0] == 0x66 && mbr[0x1b1] == 0xbb) {
- if (edd)
- mbr[0x1bb] |= 0x80; /* Packet mode on */
- else
- mbr[0x1bb] &= 0x7f; /* Packet mode off */
- }
+
+ if (mbr[0x1b0] == 0x66 && mbr[0x1b1] == 0xbb) {
+ if (edd)
+ mbr[0x1bb] |= 0x80; /* Packet mode on */
+ else
+ mbr[0x1bb] &= 0x7f; /* Packet mode off */
+ }
}
int
Write_Disk(const struct disk *d1)
{
- int fd,i;
- int j;
+ int fd, i, j;
struct disk *old = 0;
struct chunk *c1;
int ret = 0;
@@ -93,23 +95,24 @@ Write_Disk(const struct disk *d1)
int s[4];
int need_edd = 0; /* Need EDD (packet interface) */
- strcpy(device,_PATH_DEV);
- strcat(device,d1->name);
-
+ strcpy(device, _PATH_DEV);
+ strcat(device, d1->name);
- fd = open(device,O_RDWR);
+ fd = open(device, O_RDWR);
if (fd < 0)
return 1;
- memset(s,0,sizeof s);
+ memset(s, 0, sizeof s);
mbr = read_block(fd, 0, d1->sector_size);
- dp = (struct dos_partition*)(mbr + DOSPARTOFF);
+ 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 == unused)
+ continue;
+ if (!strcmp(c1->name, "X"))
+ continue;
j = c1->name[strlen(d1->name) + 1] - '1';
if (j < 0 || j > 3)
continue;
@@ -121,7 +124,7 @@ Write_Disk(const struct disk *d1)
Write_Int32(&dp[j].dp_size, c1->size);
i = c1->offset;
- if (i >= 1024*d1->bios_sect*d1->bios_hd) {
+ if (i >= 1024 * d1->bios_sect * d1->bios_hd) {
dp[j].dp_ssect = 0xff;
dp[j].dp_shd = 0xff;
dp[j].dp_scyl = 0xff;
@@ -137,10 +140,9 @@ Write_Disk(const struct disk *d1)
i -= dp[j].dp_scyl;
dp[j].dp_ssect |= i >> 2;
}
-
#ifdef DEBUG
- printf("S:%lu = (%x/%x/%x)",
- c1->offset, dp[j].dp_scyl, dp[j].dp_shd, dp[j].dp_ssect);
+ printf("S:%lu = (%x/%x/%x)", c1->offset,
+ dp[j].dp_scyl, dp[j].dp_shd, dp[j].dp_ssect);
#endif
i = c1->end;
@@ -150,14 +152,14 @@ Write_Disk(const struct disk *d1)
dp[j].dp_ehd = i % d1->bios_hd;
i -= dp[j].dp_ehd;
i /= d1->bios_hd;
- if (i>1023) i = 1023;
+ if (i > 1023)
+ i = 1023;
dp[j].dp_ecyl = i;
i -= dp[j].dp_ecyl;
dp[j].dp_esect |= i >> 2;
-
#ifdef DEBUG
- printf(" E:%lu = (%x/%x/%x)\n",
- c1->end, dp[j].dp_ecyl, dp[j].dp_ehd, dp[j].dp_esect);
+ 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_typ = c1->subtype;
@@ -167,7 +169,7 @@ Write_Disk(const struct disk *d1)
dp[j].dp_flag = 0;
}
j = 0;
- for(i = 0; i < NDOSPART; i++) {
+ for (i = 0; i < NDOSPART; i++) {
if (!s[i])
memset(dp + i, 0, sizeof *dp);
if (dp[i].dp_flag)
@@ -188,8 +190,9 @@ Write_Disk(const struct disk *d1)
mbr[512-1] = 0xaa;
write_block(fd, 0, mbr, d1->sector_size);
if (d1->bootmgr && d1->bootmgr_size > d1->sector_size)
- for(i = 1; i * d1->sector_size <= d1->bootmgr_size; i++)
- write_block(fd, i, &d1->bootmgr[i * d1->sector_size], d1->sector_size);
+ for (i = 1; i * d1->sector_size <= d1->bootmgr_size; i++)
+ write_block(fd, i, &d1->bootmgr[i * d1->sector_size],
+ d1->sector_size);
close(fd);
return 0;
OpenPOWER on IntegriCloud