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Diffstat (limited to 'genisoimage/apple_driver.c')
| -rw-r--r-- | genisoimage/apple_driver.c | 190 |
1 files changed, 190 insertions, 0 deletions
diff --git a/genisoimage/apple_driver.c b/genisoimage/apple_driver.c new file mode 100644 index 0000000..24f8544 --- /dev/null +++ b/genisoimage/apple_driver.c @@ -0,0 +1,190 @@ +/* + * This file has been modified for the cdrkit suite. + * + * The behaviour and appearence of the program code below can differ to a major + * extent from the version distributed by the original author(s). + * + * For details, see Changelog file distributed with the cdrkit package. If you + * received this file from another source then ask the distributing person for + * a log of modifications. + * + */ + +/* @(#)apple_driver.c 1.6 04/03/04 joerg */ +/* + * apple_driver.c: extract Mac partition label, maps and boot driver + * + * Based on Apple_Driver.pl, part of "genisoimage 1.05 PLUS" by Andy Polyakov + * <appro@fy.chalmers.se> (I don't know Perl, so I rewrote it C ...) + * (see http://fy.chalmers.se/~appro/genisoimage_plus.html for details) + * + * usage: apple_driver CDROM_device > HFS_driver_file + * + * The format of the HFS driver file: + * + * HFS CD Label Block 512 bytes + * Driver Partition Map (for 2048 byte blocks) 512 bytes + * Driver Partition Map (for 512 byte blocks) 512 bytes + * Empty 512 bytes + * Driver Partition N x 2048 bytes + * HFS Partition Boot Block 1024 bytes + * + * By extracting a driver from an Apple CD, you become liable to obey + * Apple Computer, Inc. Software License Agreements. + * + * James Pearson 17/5/98 + */ + +#include <mconfig.h> +#include "genisoimage.h" +#include <mac_label.h> +#include <schily.h> + +int get_732(char *p); +int get_722(char *p); + +int +get_732(char *p) +{ + return ((p[3] & 0xff) + | ((p[2] & 0xff) << 8) + | ((p[1] & 0xff) << 16) + | ((p[0] & 0xff) << 24)); +} + +int +get_722(char *p) +{ + return ((p[1] & 0xff) + | ((p[0] & 0xff) << 8)); +} + +#if 0 +EXPORT int +main(argc, argv) + int argc; + char **argv; +{ + FILE *fp; + MacLabel *mac_label; + MacPart *mac_part; + unsigned char Block0[HFS_BLOCKSZ]; + unsigned char block[SECTOR_SIZE]; + unsigned char bootb[2*HFS_BLOCKSZ]; + unsigned char pmBlock512[HFS_BLOCKSZ]; + unsigned int sbBlkSize; + unsigned int pmPyPartStart; + unsigned int pmPartStatus; + unsigned int pmMapBlkCnt; + int have_boot = 0, have_hfs = 0; + int hfs_start; + int i, j; + + + save_args(argc, argv); + + if (argc != 2) + comerrno(EX_BAD, "Usage: %s device-path", argv[0]); + + if ((fp = fopen(argv[1], "rb")) == NULL) + comerr("Can't open '%s'.", argv[1]); + + if (fread(Block0, 1, HFS_BLOCKSZ, fp) != HFS_BLOCKSZ) + comerr("Can't read '%s'.", argv[1]); + + mac_label = (MacLabel *)Block0; + mac_part = (MacPart *)block; + + sbBlkSize = get_722((char *)mac_label->sbBlkSize); + + if (! IS_MAC_LABEL(mac_label) || sbBlkSize != SECTOR_SIZE) + comerrno(EX_BAD, "%s is not a bootable Mac disk", argv[1]); + + i = 1; + do { + if (fseek(fp, i * HFS_BLOCKSZ, SEEK_SET) != 0) + comerr("Ccan't seek %s", argv[1]); + + if (fread(block, 1, HFS_BLOCKSZ, fp) != HFS_BLOCKSZ) + comerr("Can't read '%s'.", argv[1]); + + pmMapBlkCnt = get_732((char *)mac_part->pmMapBlkCnt); + + if (!have_boot && strncmp((char *)mac_part->pmPartType, pmPartType_2, 12) == 0) { + hfs_start = get_732((char *)mac_part->pmPyPartStart); + + fprintf(stderr, "%s: found 512 driver partition (at block %d)\n", argv[0], hfs_start); + memcpy(pmBlock512, block, HFS_BLOCKSZ); + have_boot = 1; + } + + if (!have_hfs && strncmp((char *)mac_part->pmPartType, pmPartType_4, 9) == 0) { + + hfs_start = get_732((char *)mac_part->pmPyPartStart); + + if (fseek(fp, hfs_start*HFS_BLOCKSZ, SEEK_SET) != 0) + comerr("Can't seek '%s'.", argv[1]); + + if (fread(bootb, 2, HFS_BLOCKSZ, fp) != HFS_BLOCKSZ) + comerr("Can't read '%s'.", argv[1]); + + if (get_722((char *)bootb) == 0x4c4b) { + + fprintf(stderr, "%s: found HFS partition (at blk %d)\n", argv[0], hfs_start); + have_hfs = 1; + } + } + } while (i++ < pmMapBlkCnt); + + if (!have_hfs || !have_boot) + comerrno(EX_BAD, "%s is not a bootable Mac disk", argv[1]); + + i = 1; + + do { + if (fseek(fp, i*sbBlkSize, SEEK_SET) != 0) + comerr("Can't seek '%s'.", argv[1]); + + if (fread(block, 1, HFS_BLOCKSZ, fp) != HFS_BLOCKSZ) + comerr("Can't read '%s'.", argv[1]); + + pmMapBlkCnt = get_732((char *)mac_part->pmMapBlkCnt); + + if (strncmp((char *)mac_part->pmPartType, pmPartType_2, 12) == 0) { + + int start, num; + + fprintf(stderr, "%s: extracting %s ", argv[0], mac_part->pmPartType); + start = get_732((char *)mac_part->pmPyPartStart); + num = get_732((char *)mac_part->pmPartBlkCnt); + fwrite(Block0, 1, HFS_BLOCKSZ, stdout); + fwrite(block, 1, HFS_BLOCKSZ, stdout); + fwrite(pmBlock512, 1, HFS_BLOCKSZ, stdout); + memset(block, 0, HFS_BLOCKSZ); + fwrite(block, 1, HFS_BLOCKSZ, stdout); + + if (fseek(fp, start*sbBlkSize, SEEK_SET) != 0) + comerr("Can't seek '%s'.", argv[1]); + + for (j = 0; j < num; j++) { + if (fread(block, 1, sbBlkSize, fp) != sbBlkSize) + comerr("Can't read '%s'.", argv[1]); + + fwrite(block, 1, sbBlkSize, stdout); + fprintf(stderr, "."); + } + fprintf(stderr, "\n"); + + fwrite(bootb, 2, HFS_BLOCKSZ, stdout); + fclose(fp); + exit(0); + } + + if (!IS_MAC_PART(mac_part)) + comerrno(EX_BAD, "Unable to find boot partition"); + + } while (i++ < pmMapBlkCnt); + + return (0); +} +#endif |