mirror of
https://github.com/vivier/EMILE.git
synced 2024-12-23 01:29:34 +00:00
790 lines
16 KiB
C
790 lines
16 KiB
C
/*
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*
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* (c) 2004 Laurent Vivier <LaurentVivier@wanadoo.fr>
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*
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*/
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <string.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <getopt.h>
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#include "libemile.h"
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int verbose = 0;
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extern void scanbus(void);
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static char *first_path = PREFIX "/boot/emile/first_scsi";
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static char *second_path = PREFIX "/boot/emile/second_scsi";
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static char *kernel_path = PREFIX "/boot/vmlinuz";
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static char *map_path = NULL;
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static char *backup_path = NULL;
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static char *partition = NULL;
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static char *append_string = NULL;
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static int buffer_size = 0;
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enum {
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ACTION_NONE = 0x00000000,
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ACTION_SCANBUS = 0x00000001,
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ACTION_SET_HFS = 0x00000002,
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ACTION_RESTORE = 0x00000004,
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ACTION_BACKUP = 0x00000008,
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ACTION_APPEND = 0x00000010,
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ACTION_TEST = 0x00000020,
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ACTION_FIRST = 0x00000040,
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ACTION_SECOND = 0x00000080,
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ACTION_KERNEL = 0x00000100,
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ACTION_PARTITION = 0x00000200,
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ACTION_MAP = 0x00000400,
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};
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enum {
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ARG_NONE = 0,
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ARG_SCANBUS,
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ARG_SET_HFS,
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ARG_RESTORE,
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ARG_BACKUP,
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ARG_APPEND = 'a',
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ARG_VERBOSE ='v',
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ARG_TEST = 't',
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ARG_FIRST = 'f',
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ARG_SECOND = 's',
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ARG_KERNEL = 'k',
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ARG_PARTITION = 'p',
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ARG_HELP = 'h',
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ARG_MAP = 'm',
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};
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static struct option long_options[] =
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{
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{"verbose", 0, NULL, ARG_VERBOSE },
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{"first", 1, NULL, ARG_FIRST },
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{"second", 1, NULL, ARG_SECOND },
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{"kernel", 1, NULL, ARG_KERNEL },
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{"map", 1, NULL, ARG_MAP },
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{"partition", 1, NULL, ARG_PARTITION },
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{"help", 0, NULL, ARG_HELP },
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{"scanbus", 0, NULL, ARG_SCANBUS },
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{"set-hfs", 0, NULL, ARG_SET_HFS },
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{"restore", 2, NULL, ARG_RESTORE },
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{"backup", 2, NULL, ARG_BACKUP },
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{"test", 0, NULL, ARG_TEST },
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{"append", 0, NULL, ARG_APPEND },
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{NULL, 0, NULL, 0 }
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};
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static void usage(int argc, char** argv)
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{
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fprintf(stderr, "Usage: %s [OPTION]\n", argv[0]);
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fprintf(stderr, "Update and install EMILE stuff on your SCSI disk.\n");
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fprintf(stderr, "EMILE allows to boot linux directly from linux partition\n");
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fprintf(stderr," -h, --help display this text\n");
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fprintf(stderr," -v, --verbose active verbose mode\n");
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fprintf(stderr," -t, --test active test mode (don't write to disk)\n");
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fprintf(stderr," --scanbus display information about all disks and partitions\n");
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fprintf(stderr," -f, --first PATH set path of EMILE first level\n");
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fprintf(stderr," -s, --second PATH set path of EMILE second level\n");
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fprintf(stderr," -k, --kernel PATH set path of kernel\n");
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fprintf(stderr," -m, --map PATH set path to the EMILE kernel map file (generated)\n");
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fprintf(stderr," -a, --append ARG set kernel command line\n");
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fprintf(stderr," -p, --partition DEV define device where to install boot block\n");
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fprintf(stderr," --restore[=FILE] save current boot block from FILE\n");
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fprintf(stderr," --backup[=FILE] save current boot block to FILE\n");
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fprintf(stderr," --set-hfs set type of partition DEV to Apple_HFS (needed to be bootable)\n");
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fprintf(stderr, "\nUse \"--test\" to see default values\n");
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fprintf(stderr, "!!! USE WITH CAUTION AND AT YOUR OWN RISK !!!\n");
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fprintf(stderr, "\nbuild: \n%s\n", SIGNATURE);
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}
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static int open_map_of( char *dev_name, int flags,
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emile_map_t **map, int *partition)
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{
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int ret;
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int disk;
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char disk_name[16];
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char *driver;
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ret = emile_scsi_get_rdev(dev_name, &driver, &disk, partition);
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if (ret == -1)
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return -1;
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sprintf(disk_name, "%s%c", driver, 'a' + disk);
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*map = emile_map_open(disk_name, flags);
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if (*map == NULL)
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return -1;
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return 0;
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}
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static int check_has_apple_driver(char *dev_name)
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{
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emile_map_t *map;
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int partition;
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int ret;
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ret = open_map_of(dev_name, O_RDONLY, &map, &partition);
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if (ret == -1)
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return -1;
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ret = emile_map_has_apple_driver(map);
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emile_map_close(map);
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return ret;
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}
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static int check_is_hfs(char *dev_name)
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{
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emile_map_t *map;
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int ret;
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int partition;
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char *part_type;
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ret = open_map_of(dev_name, O_RDONLY, &map, &partition);
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if (ret == -1)
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return -1;
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ret = emile_map_read(map, partition - 1);
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if (ret == -1)
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return -1;
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part_type = emile_map_get_partition_type(map);
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ret = (strcmp("Apple_HFS", part_type) == 0);
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emile_map_close(map);
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return ret;
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}
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static int check_is_EMILE_bootblock(char *dev_name)
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{
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emile_map_t *map;
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int ret;
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int partition;
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char bootblock[BOOTBLOCK_SIZE];
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int bootblock_type;
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ret = open_map_of(dev_name, O_RDONLY, &map, &partition);
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if (ret == -1)
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return -1;
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ret = emile_map_read(map, partition - 1);
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if (ret == -1)
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return -1;
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ret = emile_map_bootblock_read(map, bootblock);
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if (ret == -1)
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return -1;
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bootblock_type = emile_map_bootblock_get_type(bootblock);
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emile_map_close(map);
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return EMILE_BOOTBLOCK == bootblock_type;
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}
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static int backup_bootblock(char *dev_name, char *filename)
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{
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emile_map_t *map;
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int ret;
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int partition;
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char bootblock[BOOTBLOCK_SIZE];
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int fd;
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ret = open_map_of(dev_name, O_RDONLY, &map, &partition);
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if (ret == -1)
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return -1;
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ret = emile_map_read(map, partition - 1);
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if (ret == -1)
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return -1;
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ret = emile_map_bootblock_read(map, bootblock);
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if (ret == -1)
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return -1;
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emile_map_close(map);
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/* save bootblock */
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fd = open(filename, O_CREAT | O_EXCL | O_WRONLY, S_IRUSR | S_IWUSR);
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if (fd == -1)
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{
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if (errno == EEXIST)
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{
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fprintf(stderr, "ERROR: \"%s\" already exists.\n",
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filename);
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}
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return -1;
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}
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ret = write(fd, bootblock, BOOTBLOCK_SIZE);
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if (ret != BOOTBLOCK_SIZE)
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return -1;
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close(fd);
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return 0;
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}
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static int restore_bootblock(char *dev_name, char *filename)
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{
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emile_map_t *map;
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int ret;
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int partition;
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char bootblock[BOOTBLOCK_SIZE];
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int fd;
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if (!check_is_EMILE_bootblock(dev_name))
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{
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fprintf(stderr, "ERROR: cannot restore bootblock over non-EMILE bootblock\n");
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return -1;
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}
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/* read bootblock */
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fd = open(filename, O_RDONLY);
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if (fd == -1)
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return -1;
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ret = read(fd, bootblock, BOOTBLOCK_SIZE);
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if (ret != BOOTBLOCK_SIZE)
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return -1;
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close(fd);
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/* write bootblock */
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ret = open_map_of(dev_name, O_RDWR, &map, &partition);
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if (ret == -1)
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return -1;
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ret = emile_map_read(map, partition - 1);
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if (ret == -1)
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return -1;
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ret = emile_map_bootblock_write(map, bootblock);
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if (ret == -1)
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return -1;
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emile_map_close(map);
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return 0;
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}
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static int copy_file_to_bootblock(char* first_path, char* dev_name)
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{
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emile_map_t *map;
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int ret;
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int partition;
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char bootblock[BOOTBLOCK_SIZE];
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int fd;
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/* read first level */
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fd = open(first_path, O_RDONLY);
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if (fd == -1)
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return -1;
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ret = read(fd, bootblock, BOOTBLOCK_SIZE);
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if (ret != BOOTBLOCK_SIZE)
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return -1;
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close(fd);
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/* write bootblock to partition */
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ret = open_map_of(dev_name, O_RDWR, &map, &partition);
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if (ret == -1)
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return -1;
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ret = emile_map_read(map, partition - 1);
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if (ret == -1)
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return -1;
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ret = emile_map_bootblock_write(map, bootblock);
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if (ret == -1)
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return -1;
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emile_map_close(map);
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return 0;
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}
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static int set_HFS(char *dev_name)
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{
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emile_map_t *map;
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int ret;
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int partition;
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ret = open_map_of(dev_name, O_RDWR, &map, &partition);
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if (ret == -1)
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return -1;
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ret = emile_map_read(map, partition - 1);
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if (ret == -1)
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return -1;
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ret = emile_map_set_partition_type(map, "Apple_HFS");
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if (ret == -1)
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return -1;
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ret = emile_map_partition_set_bootable(map, 1);
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if (ret == -1)
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return -1;
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ret = emile_map_write(map, partition - 1);
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if (ret == -1)
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return -1;
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emile_map_close(map);
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return 0;
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}
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int main(int argc, char **argv)
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{
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int ret;
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int c;
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int option_index = 0;
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char tmp_partition[16];
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char tmp_append[512];
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int fd;
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int action = ACTION_NONE;
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while(1)
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{
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c = getopt_long(argc, argv, "vhtf:a:s:k:b:", long_options, &option_index);
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if (c == -1)
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break;
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switch(c)
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{
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case ARG_VERBOSE:
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verbose++;
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break;
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case ARG_HELP:
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usage(argc, argv);
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return 0;
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case ARG_SCANBUS:
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action |= ACTION_SCANBUS;
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break;
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case ARG_FIRST:
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action |= ACTION_FIRST;
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first_path = optarg;
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break;
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case ARG_SECOND:
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action |= ACTION_SECOND;
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second_path = optarg;
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break;
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case ARG_KERNEL:
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action |= ACTION_KERNEL;
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kernel_path = optarg;
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break;
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case ARG_MAP:
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action |= ACTION_MAP;
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map_path = optarg;
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break;
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case ARG_PARTITION:
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action |= ACTION_PARTITION;
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partition = optarg;
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break;
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case ARG_SET_HFS:
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action |= ACTION_SET_HFS;
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break;
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case ARG_RESTORE:
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action |= ACTION_RESTORE;
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if (optarg != NULL)
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backup_path = optarg;
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else
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backup_path = PREFIX "/boot/emile/bootblock.backup";
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break;
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case ARG_BACKUP:
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action |= ACTION_BACKUP;
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if (optarg != NULL)
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backup_path = optarg;
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else
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backup_path = PREFIX "/boot/emile/bootblock.backup";
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break;
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case ARG_APPEND:
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action |= ACTION_APPEND;
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append_string = optarg;
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break;
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case ARG_TEST:
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action |= ACTION_TEST;
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break;
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default:
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fprintf(stderr, "ERROR: unknown option %s (%d, %c)\n",
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argv[optind], c, c);
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return 1;
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}
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}
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if (action & ACTION_SCANBUS) {
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if (action & ~ACTION_SCANBUS) {
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fprintf(stderr,
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"ERROR: \"--scanbus\" cannot be used with other arguments\n");
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return 1;
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}
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scanbus();
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return 0;
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}
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/* seek first HFS partition */
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if (partition == NULL)
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{
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int fd;
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char dev_name[16];
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emile_map_t* map;
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char *part_type;
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int i;
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char *driver;
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int disk;
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int partnb;
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fd = open(second_path, O_RDONLY);
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if (fd == -1)
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{
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fprintf(stderr, "ERROR: cannot open \"%s\"\n",
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second_path);
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return 2;
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}
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ret = emile_scsi_get_dev(fd, &driver, &disk, &partnb);
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if (ret == -1)
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{
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fprintf(stderr,"ERROR: cannot find device of \"%s\"\n",
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second_path);
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return 2;
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}
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close(fd);
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sprintf(dev_name, "%s%c", driver, disk + 'a');
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/* ROM boots on the first HFS partition it finds */
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map = emile_map_open(dev_name, O_RDONLY);
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if (map == NULL)
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{
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fprintf(stderr, "ERROR: cannot open partition map\n");
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return 2;
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}
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for (i = 0; i < emile_map_get_number(map); i++)
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{
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ret = emile_map_read(map, i);
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if (ret == -1)
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break;
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part_type = emile_map_get_partition_type(map);
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if (strcmp(part_type, "Apple_HFS") == 0)
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{
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sprintf(tmp_partition, "%s%d", dev_name, i + 1);
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partition = tmp_partition;
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break;
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}
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}
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emile_map_close(map);
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}
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/* if there is no HFS partition, we'll use the partition
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* where there is second_scsi (/boot or /)
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*/
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if (partition == NULL)
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{
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int fd;
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char *driver;
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int disk;
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int partnb;
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fd = open(second_path, O_RDONLY);
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if (fd == -1)
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return 2;
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ret = emile_scsi_get_dev(fd, &driver, &disk, &partnb);
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if (ret == 0)
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{
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sprintf(tmp_partition,
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"%s%c%d", driver, disk + 'a', partnb);
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partition = tmp_partition;
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}
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close(fd);
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}
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if (partition == NULL)
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{
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fprintf(stderr,
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"ERROR: you must specify a partition to set EMILE bootblock\n");
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fprintf(stderr,
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" you can have the list of available partitions with \"--scanbus\".\n");
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return 3;
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}
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if (action & ACTION_RESTORE)
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{
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if (action & ~(ACTION_RESTORE | ACTION_PARTITION))
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{
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fprintf(stderr,
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"ERROR: \"--restore\" cannot be used with other arguments\n");
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return 13;
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}
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ret = restore_bootblock(partition, backup_path);
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if (ret == -1)
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{
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fprintf(stderr,
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"ERROR: cannot restore bootblock %s from %s\n",
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partition, backup_path);
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return 14;
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}
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printf("Bootblock restore successfully done.\n");
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return 0;
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}
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if (append_string == NULL)
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{
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char *driver;
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int disk;
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int partnb;
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fd = open(second_path, O_RDONLY);
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if (fd == -1)
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{
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fprintf(stderr, "ERROR: cannot open \"%s\"\n",
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second_path);
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return 2;
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}
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|
ret = emile_scsi_get_dev(fd, &driver, &disk, &partnb);
|
|
if (ret == -1)
|
|
{
|
|
fprintf(stderr,"ERROR: cannot find device of \"%s\"\n",
|
|
second_path);
|
|
return 2;
|
|
}
|
|
close(fd);
|
|
|
|
sprintf(tmp_append, "root=%s%c%d", driver, disk + 'a', partnb);
|
|
append_string = tmp_append;
|
|
}
|
|
|
|
ret = check_has_apple_driver(partition);
|
|
if (ret == -1)
|
|
{
|
|
fprintf(stderr, "ERROR: cannot check if Apple_Driver exists\n");
|
|
fprintf(stderr, " you should try as root\n");
|
|
if ((action & ACTION_TEST) == 0)
|
|
return 4;
|
|
}
|
|
if (ret == 0)
|
|
{
|
|
fprintf(stderr,
|
|
"ERROR: to be bootable a disk must have an Apple Driver on it\n");
|
|
fprintf(stderr,
|
|
" You must partition this disk with Apple Disk utility\n");
|
|
fprintf(stderr,
|
|
" or wait a release of EMILE allowing you to add this driver\n");
|
|
if ((action & ACTION_TEST) == 0)
|
|
return 5;
|
|
}
|
|
|
|
ret = check_is_hfs(partition);
|
|
if (ret == -1)
|
|
{
|
|
fprintf(stderr,
|
|
"ERROR: cannot check if partition is Apple_HFS\n");
|
|
fprintf(stderr, " you should try as root\n");
|
|
if ((action & ACTION_TEST) == 0)
|
|
return 6;
|
|
}
|
|
if ( (ret == 0) && (action & ACTION_SET_HFS) )
|
|
{
|
|
fprintf(stderr,
|
|
"ERROR: to be bootable a partition must be of type Apple_HFS\n");
|
|
fprintf(stderr,
|
|
" you can change it to Apple_HFS using \"--set-hfs\" argument\n");
|
|
if ((action & ACTION_TEST) == 0)
|
|
return 7;
|
|
}
|
|
|
|
ret = check_is_EMILE_bootblock(partition);
|
|
if (ret == -1)
|
|
{
|
|
fprintf(stderr, "ERROR: cannot check bootblock type\n");
|
|
fprintf(stderr, " you should try as root\n");
|
|
if ((action & ACTION_TEST) == 0)
|
|
return 8;
|
|
}
|
|
if ( (ret == 0) && ((action & ACTION_BACKUP) == 0) )
|
|
{
|
|
fprintf(stderr,
|
|
"ERROR: there is already a bootblock on \"%s\"\n", partition);
|
|
fprintf(stderr,
|
|
" you must use \"--backup\" to save it\n");
|
|
if ((action & ACTION_TEST) == 0)
|
|
return 9;
|
|
}
|
|
|
|
if (action & ACTION_BACKUP)
|
|
{
|
|
if (action & ACTION_TEST)
|
|
{
|
|
fprintf(stderr,
|
|
"ERROR: \"--backup\" cannot be used with \"--test\"\n");
|
|
return 13;
|
|
}
|
|
|
|
ret = backup_bootblock(partition, backup_path);
|
|
if (ret == -1)
|
|
{
|
|
fprintf(stderr,
|
|
"ERROR: cannot backup bootblock %s to %s\n",
|
|
partition, backup_path);
|
|
return 14;
|
|
}
|
|
printf("Bootblock backup successfully done.\n");
|
|
}
|
|
|
|
if (map_path == NULL)
|
|
{
|
|
map_path = (char*)malloc(strlen(kernel_path) + 5);
|
|
if (map_path == NULL)
|
|
{
|
|
fprintf(stderr,
|
|
"ERROR: cannot allocate memory\n");
|
|
return 15;
|
|
}
|
|
sprintf(map_path, "%s.map", kernel_path);
|
|
}
|
|
|
|
printf("partition: %s\n", partition);
|
|
printf("first: %s\n", first_path);
|
|
printf("second: %s\n", second_path);
|
|
printf("kernel: %s\n", kernel_path);
|
|
printf("map file: %s\n", map_path);
|
|
printf("append: %s\n", append_string);
|
|
printf("buffer size: %d\n", buffer_size);
|
|
|
|
/* set kernel info into second level */
|
|
|
|
fd = open(second_path, O_RDWR);
|
|
if (fd == -1)
|
|
{
|
|
fprintf(stderr, "ERROR: cannot open \"%s\"\n",
|
|
second_path);
|
|
return 16;
|
|
}
|
|
|
|
if ((action & ACTION_TEST) == 0)
|
|
{
|
|
char *configuration;
|
|
struct emile_container *container;
|
|
char map_info[64];
|
|
|
|
container = emile_second_create_mapfile(map_path, kernel_path);
|
|
if (container == NULL)
|
|
{
|
|
fprintf(stderr,
|
|
"ERROR: cannot set \"%s\" information in \"%s\".\n",
|
|
kernel_path, map_path);
|
|
return 17;
|
|
}
|
|
|
|
/* set second configuration */
|
|
|
|
lseek(fd, 0, SEEK_SET);
|
|
configuration = emile_second_get_configuration(fd);
|
|
|
|
/* set kernel info */
|
|
|
|
sprintf(map_info, "container:(sd%d)0x%x,0x%x", container->unit_id,
|
|
container->blocks[0].offset, container->blocks[0].count);
|
|
emile_second_set_property(configuration, "kernel", map_info);
|
|
|
|
/* set cmdline */
|
|
|
|
emile_second_set_property(configuration, "parameters", append_string);
|
|
|
|
/* save configuration */
|
|
|
|
lseek(fd, 0, SEEK_SET);
|
|
ret = emile_second_set_configuration(fd, configuration);
|
|
if (ret != 0)
|
|
{
|
|
free(configuration);
|
|
fprintf(stderr,
|
|
"ERROR: cannot set configuration in %s\n", second_path);
|
|
return 19;
|
|
}
|
|
free(configuration);
|
|
}
|
|
|
|
close(fd);
|
|
|
|
/* set second info in first level */
|
|
|
|
fd = open(first_path, O_RDWR);
|
|
if (fd == -1)
|
|
{
|
|
fprintf(stderr,
|
|
"ERROR: cannot open \"%s\".\n", first_path);
|
|
return 20;
|
|
}
|
|
|
|
if ((action & ACTION_TEST) == 0)
|
|
{
|
|
ret = emile_first_set_param_scsi(fd, second_path);
|
|
if (ret == -1)
|
|
{
|
|
fprintf(stderr,
|
|
"ERROR: cannot set \"%s\" information into \"%s\".\n",
|
|
second_path, first_path);
|
|
return 21;
|
|
}
|
|
}
|
|
|
|
close(fd);
|
|
|
|
if ((action & ACTION_TEST) == 0)
|
|
{
|
|
/* copy first level to boot block */
|
|
|
|
ret = copy_file_to_bootblock(first_path, partition);
|
|
if (ret == -1)
|
|
{
|
|
fprintf(stderr,
|
|
"ERROR: cannot write \"%s\" to bootblock of \"%s\".\n",
|
|
first_path, partition);
|
|
fprintf(stderr,
|
|
" %s\n", strerror(errno));
|
|
return 22;
|
|
}
|
|
|
|
/* set HFS if needed */
|
|
|
|
if (action & ACTION_SET_HFS)
|
|
{
|
|
ret = set_HFS(partition);
|
|
if (ret == -1)
|
|
{
|
|
fprintf( stderr,
|
|
"ERROR: cannot set partition type of \"%s\" to Apple_HFS.\n"
|
|
, partition);
|
|
return 23;
|
|
}
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|