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use a default size (64KiB) for driver partition, in block0 counts blocks in blocksize blocks

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This commit is contained in:
Laurent Vivier 2006-10-20 07:57:29 +00:00
parent 5fa77b2ff2
commit c6bce62661
1 changed files with 10 additions and 24 deletions
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34
tools/emile-mkisofs.c
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@ -8,6 +8,9 @@
* Apple Computer, Inc. Software License Agreements.
*
*/
#define DRIVER_SIZE (64*1024)
//-f ../first/first_scsi -s ../second/m68k-linux-scsi/second -k "/install/kernels/vmlinuz-2.2.25-mac" -r "/install/cdrom/initrd22.gz" -d Apple_Driver43 -a "root=/dev/ramdisk ramdisk_size=13000" boot.img /mnt/cdrom
#include <stdio.h>
@ -83,9 +86,7 @@ static int create_apple_driver(char *temp, char *appledriver, char *first_level)
char *buffer;
char *driver;
int ret;
int i;
struct stat st;
int blocksize;
/* read apple driver */
@ -96,10 +97,11 @@ static int create_apple_driver(char *temp, char *appledriver, char *first_level)
return -1;
}
fstat(fd_driver, &st);
driver = malloc(st.st_size);
driver = malloc(DRIVER_SIZE);
memset(driver, 0, DRIVER_SIZE);
if (driver == NULL)
{
fprintf(stderr, "Cannot malloc %ld bytes\n", st.st_size);
fprintf(stderr, "Cannot malloc %d bytes\n", DRIVER_SIZE);
return -1;
}
ret = read(fd_driver, driver, st.st_size);
@ -125,12 +127,12 @@ static int create_apple_driver(char *temp, char *appledriver, char *first_level)
write_short(&block0.DrvrCount, 1);
write_long(&block0.DrvInfo[0].Block, 0);
write_short(&block0.DrvInfo[0].Size, (st.st_size + 512 - 1) / 512);
write_short(&block0.DrvInfo[0].Size, (DRIVER_SIZE + BLOCKSIZE - 1) / BLOCKSIZE);
write_short(&block0.DrvInfo[0].Type, kDriverTypeMacSCSI);
memset(&map512, 0, sizeof(map512));
write_short(&map512.Sig, MAP_SIGNATURE);
write_long(&map512.PartBlkCnt, (st.st_size + 512 - 1) / 512);
write_long(&map512.PartBlkCnt, (DRIVER_SIZE + 512 - 1) / 512);
write_long(&map512.PyPartStart,0);
strncpy(map512.PartName, "Macintosh", 32);
strncpy(map512.PartType, APPLE_DRIVER43, 32);
@ -156,7 +158,7 @@ static int create_apple_driver(char *temp, char *appledriver, char *first_level)
write_long((u_int32_t*)map512.Pad, kSCSICDDriverSignature);
map2048 = map512;
write_long(&map2048.PartBlkCnt, (st.st_size + BLOCKSIZE - 1) / BLOCKSIZE);
write_long(&map2048.PartBlkCnt, (DRIVER_SIZE + BLOCKSIZE - 1) / BLOCKSIZE);
strcpy(temp, "/tmp/emile-mkisofs-XXXXXX");
mkstemp(temp);
@ -168,23 +170,7 @@ static int create_apple_driver(char *temp, char *appledriver, char *first_level)
memset(&map512, 0, sizeof(map512));
ret = fwrite(&map512, 1, sizeof(map512), fd);
blocksize = read_short(&block0.BlkSize);
buffer = malloc(blocksize);
for(i = 0; i < read_long(&map2048.PartBlkCnt); i++)
{
memset(buffer, 0, blocksize);
if (i * blocksize < st.st_size)
{
int remaining = st.st_size - i * blocksize;
if (remaining >= blocksize)
memcpy(buffer, driver + i * blocksize, blocksize);
else
memcpy(buffer, driver + i * blocksize, remaining);
}
fwrite(buffer, blocksize, 1, fd);
}
free(buffer);
fwrite(driver, DRIVER_SIZE, 1, fd);
free(driver);
/* read and write bootblock */