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- Merge Write_FreeBSD() into Write_Disk().

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- Miscellaneous cleanups.
This commit is contained in:
John Baldwin 2002-11-08 13:58:00 +00:00
parent 7d96ca40e6
commit 2b39144955
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=106619
1 changed files with 33 additions and 41 deletions
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74
lib/libdisk/write_alpha_disk.c
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@ -25,68 +25,60 @@ __FBSDID("$FreeBSD$");
/* 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)
int
Write_Disk(const struct disk *d1)
{
struct disklabel *dl;
int i;
void *p;
u_char buf[BBSIZE];
u_long *lp, sum;
char device[64];
struct chunk *c1;
struct disklabel *dl;
void *p;
uint64_t *lp, sum;
int fd, i;
for(i = 0; i < BBSIZE/512; i++) {
strcpy(device, _PATH_DEV);
strcat(device, d1->name);
fd = open(device, O_RDWR);
if (fd < 0)
return (1);
c1 = d1->chunks->part;
if (!strcmp(c1->name, "X") || c1->type != freebsd) {
close (fd);
return (0);
}
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);
if(d1->boot1)
memcpy(buf + 512, d1->boot1, BBSIZE - 512);
dl = (struct disklabel *)(buf + 512 * LABELSECTOR + LABELOFFSET);
Fill_Disklabel(dl, new, old, c1);
Fill_Disklabel(dl, d1, NULL, c1);
/*
* Tell SRM where the bootstrap is.
*/
lp = (u_long *)buf;
lp[60] = 15;
lp[61] = 1;
lp[62] = 0;
lp[60] = (BBSIZE - 512) / 512; /* Length */
lp[61] = 1; /* Start */
lp[62] = 0; /* Flags */
/*
* Generate the bootblock checksum for the SRM console.
*/
for (lp = (u_long *)buf, i = 0, sum = 0; i < 63; i++)
sum = 0;
for (i = 0; i < 63; i++)
sum += lp[i];
lp[63] = sum;
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;
}
int
Write_Disk(const struct disk *d1)
{
char device[64];
struct chunk *c1;
int fd, ret;
strcpy(device, _PATH_DEV);
strcat(device, d1->name);
fd = open(device,O_RDWR);
if (fd < 0)
return (1);
c1 = d1->chunks->part;
if (!strcmp(c1->name, "X") || c1->type != freebsd)
ret = 0;
else
ret = Write_FreeBSD(fd, d1, NULL, c1);
close(fd);
return (ret);
return (0);
}