mirror of
https://github.com/vivier/EMILE.git
synced 2024-09-10 01:54:31 +00:00
863 lines
18 KiB
C
863 lines
18 KiB
C
/*
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*
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* (c) 2004-2007 Laurent Vivier <Laurent@lvivier.info>
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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 <libgen.h>
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#include <libconfig.h>
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#include "libemile.h"
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#include "emile_config.h"
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int verbose = 0;
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extern void scanbus(void);
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static 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_TEST = 0x00000010,
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ACTION_CONFIG = 0x00000020,
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} action = ACTION_NONE;
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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_VERBOSE ='v',
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ARG_TEST = 't',
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ARG_HELP = 'h',
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ARG_CONFIG = 'c',
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};
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static struct option long_options[] =
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{
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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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{"verbose", 0, NULL, ARG_VERBOSE },
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{"help", 0, NULL, ARG_HELP },
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{"test", 0, NULL, ARG_TEST },
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{"config", 1, NULL, ARG_CONFIG },
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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," --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," -c, --config FILE use config file FILE\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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int 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 -2;
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emile_get_dev_name(disk_name, driver, disk, 0);
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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 < 0)
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return ret;
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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 < 0)
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return ret;
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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 < 0)
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return ret;
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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 < 0)
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return ret;
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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 < 0)
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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 < 0)
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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 < 0)
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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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static char *get_map_name(char *filename)
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{
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char *a, *b;
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char *base, *dir;
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char *map_name;
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a = strdup(filename);
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base = basename(a);
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b = strdup(filename);
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dir = dirname(b);
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map_name = (char*)malloc(strlen(filename) + 6);
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if (map_name == NULL)
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return NULL;
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sprintf(map_name, "%s/.%s.map", dir, base);
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free(a);
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free(b);
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return map_name;
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}
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static int add_file(char *configuration,
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char *index, char *property, char *path, char *map_path)
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{
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struct emile_container *container;
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unsigned short unit_id;
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char map_info[64];
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if (emile_is_url(path))
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{
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if (verbose)
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printf(" %s %s\n", property, path);
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config_set_indexed_property(configuration,
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"title", index,
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property, path);
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return 0;
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}
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if ((action & ACTION_TEST) != 0)
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{
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map_path = tempnam(NULL, "emile-map_path-");
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}
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else if (map_path == NULL)
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{
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map_path = get_map_name(path);
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if (map_path == NULL)
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return -1;
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}
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else
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map_path = strdup(map_path);
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/* get block mapping of kernel in filesystem */
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container = emile_second_create_mapfile(&unit_id, map_path, path);
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if (container == NULL)
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{
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free(map_path);
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return -1;
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}
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sprintf(map_info,
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"container:(sd%d)0x%x,0x%x", unit_id,
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container->blocks[0].offset,
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container->blocks[0].count);
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free(container);
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if (verbose)
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printf(" kernel %s (%s = %s)\n", path, map_path, map_info);
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config_set_indexed_property(configuration,
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"title", index,
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property, map_info);
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if ((action & ACTION_TEST) != 0)
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fprintf(stderr, "WARNING: test mode, you must remove manually %s\n", map_path);
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free(map_path);
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return 0;
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}
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static char *set_config(emile_config *config, int drive)
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{
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int default_entry;
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int gestaltid;
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int timeout;
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char *kernel_path;
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char *initrd_path;
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char *kernel_map_path;
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char *initrd_map_path;
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char *append_string;
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char *title;
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char buf[16];
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int ret;
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char *configuration;
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configuration = malloc(65536);
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if (configuration == NULL)
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{
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fprintf(stderr,
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"ERROR: cannot allocate memory for configuration\n");
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return NULL;
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}
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configuration[0] = 0;
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config_set_property(configuration, "vga", "default");
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if (!emile_config_get(config, CONFIG_GESTALTID, &gestaltid))
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{
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sprintf(buf, "%d", gestaltid);
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config_set_property(configuration, "gestaltID", buf);
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}
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if (!emile_config_get(config, CONFIG_DEFAULT, &default_entry))
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{
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sprintf(buf, "%d", default_entry);
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config_set_property(configuration, "default", buf);
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}
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if (!emile_config_get(config, CONFIG_TIMEOUT, &timeout))
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{
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sprintf(buf, "%d", timeout);
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config_set_property(configuration, "timeout", buf);
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}
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emile_config_read_first_entry(config);
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do {
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if (!emile_config_get(config, CONFIG_TITLE, &title))
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config_add_property(configuration, "title", title);
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if (verbose)
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printf("title %s\n", title);
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if (!emile_config_get(config, CONFIG_KERNEL, &kernel_path))
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{
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ret = emile_config_get(config, CONFIG_KERNEL_MAP,
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&kernel_map_path);
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ret = add_file(configuration, title,
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"kernel", kernel_path,
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ret == -1 ? NULL : kernel_map_path);
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if (ret == -1)
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{
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fprintf(stderr,
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"ERROR: cannot add kernel %s\n",
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kernel_path);
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free(configuration);
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return NULL;
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}
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}
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else
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fprintf(stderr,
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"WARNING: missing kernel entry for %s\n", title);
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if (!emile_config_get(config, CONFIG_INITRD, &initrd_path))
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{
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ret = emile_config_get(config, CONFIG_INITRD_MAP, &initrd_map_path);
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ret = add_file(configuration, title, "initrd", initrd_path,
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ret == -1 ? NULL : initrd_map_path);
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if (ret == -1)
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{
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free(configuration);
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fprintf(stderr,
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"ERROR: cannot add initrd %s\n",
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initrd_path);
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fprintf(stderr,
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"ERROR: missing kernel entry for %s\n", title);
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return NULL;
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}
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}
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if (!emile_config_get(config, CONFIG_ARGS, &append_string))
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{
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config_set_indexed_property(configuration,
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"title", title,
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"parameters", append_string);
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if (verbose)
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printf(" parameters %s\n", append_string);
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}
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} while (!emile_config_read_next(config));
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if (strlen(configuration) > 1023)
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{
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int fd;
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char* bootconfig = "/boot/emile/.bootconfig";
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/* do not fit in second paramstring */
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fd = creat(bootconfig, S_IWUSR);
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if (fd == -1)
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{
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free(configuration);
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fprintf(stderr,
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"ERROR: cannot create /boot/emile/.bootconfig\n");
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return NULL;
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}
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write(fd, configuration, strlen(configuration) + 1);
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close(fd);
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free(configuration);
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configuration = malloc(1024);
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if (configuration == NULL)
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{
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fprintf(stderr,
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"ERROR: cannot allocate memory for configuration\n");
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return NULL;
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}
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ret = add_file(configuration, NULL,
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"configuration", bootconfig, NULL);
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if (ret == -1)
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{
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free(configuration);
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fprintf(stderr,
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"ERROR: cannot add %s to configuration\n", bootconfig);
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return NULL;
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}
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}
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return configuration;
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}
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int main(int argc, char **argv)
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{
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char *backup_path = PREFIX "/boot/emile/bootblock.backup";
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char *config_path = PREFIX "/boot/emile/emile.conf";
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char *first_path;
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char *second_path;
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char *partition;
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int ret;
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int c;
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int option_index = 0;
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emile_config *config;
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int drive, second, size;
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int fd;
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char *configuration;
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while(1)
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{
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c = getopt_long(argc, argv, "vhtc:", 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;
|
|
case ARG_SCANBUS:
|
|
action |= ACTION_SCANBUS;
|
|
break;
|
|
case ARG_SET_HFS:
|
|
action |= ACTION_SET_HFS;
|
|
break;
|
|
case ARG_RESTORE:
|
|
action |= ACTION_RESTORE;
|
|
if (optarg != NULL)
|
|
backup_path = optarg;
|
|
break;
|
|
case ARG_BACKUP:
|
|
action |= ACTION_BACKUP;
|
|
if (optarg != NULL)
|
|
backup_path = optarg;
|
|
break;
|
|
case ARG_TEST:
|
|
action |= ACTION_TEST;
|
|
break;
|
|
case ARG_CONFIG:
|
|
action |= ACTION_CONFIG;
|
|
config_path = optarg;
|
|
break;
|
|
default:
|
|
fprintf(stderr, "ERROR: unknown option %s (%d, %c)\n",
|
|
argv[optind], c, c);
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
if (action & ACTION_SCANBUS) {
|
|
|
|
if (action & ~ACTION_SCANBUS) {
|
|
fprintf(stderr,
|
|
"ERROR: \"--scanbus\" cannot be used with other arguments\n");
|
|
return 1;
|
|
}
|
|
|
|
scanbus();
|
|
return 0;
|
|
}
|
|
|
|
/* read config file */
|
|
|
|
config = emile_config_open(config_path);
|
|
if (config == NULL)
|
|
{
|
|
fprintf(stderr, "ERROR: cannot open config file %s\n", config_path);
|
|
return 2;
|
|
}
|
|
|
|
ret = emile_config_get(config, CONFIG_PARTITION, &partition);
|
|
if (ret == -1)
|
|
{
|
|
fprintf(stderr, "ERROR: you must specify in %s a partition to set\n"
|
|
" EMILE bootblock\n", config_path);
|
|
fprintf(stderr,
|
|
" you can have the list of available partitions with \"--scanbus\".\n");
|
|
emile_config_close(config);
|
|
return 3;
|
|
}
|
|
|
|
if (action & ACTION_RESTORE)
|
|
{
|
|
char* new_name;
|
|
|
|
if (action & ~ACTION_RESTORE)
|
|
{
|
|
fprintf(stderr,
|
|
"ERROR: \"--restore\" cannot be used with other arguments\n");
|
|
emile_config_close(config);
|
|
return 13;
|
|
}
|
|
|
|
ret = restore_bootblock(partition, backup_path);
|
|
if (ret == -1)
|
|
{
|
|
fprintf(stderr,
|
|
"ERROR: cannot restore bootblock %s from %s\n",
|
|
partition, backup_path);
|
|
emile_config_close(config);
|
|
return 14;
|
|
}
|
|
printf("Bootblock restore successfully done.\n");
|
|
|
|
/* rename backup file to .old */
|
|
|
|
new_name = (char*)malloc(strlen(backup_path) + 4 + 1);
|
|
|
|
sprintf(new_name, "%s.old", new_name);
|
|
|
|
unlink(new_name);
|
|
rename(backup_path, new_name);
|
|
|
|
free(new_name);
|
|
|
|
emile_config_close(config);
|
|
return 0;
|
|
}
|
|
|
|
ret = check_has_apple_driver(partition);
|
|
if (ret != -2)
|
|
{
|
|
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)
|
|
{
|
|
emile_config_close(config);
|
|
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)
|
|
{
|
|
emile_config_close(config);
|
|
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)
|
|
{
|
|
emile_config_close(config);
|
|
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)
|
|
{
|
|
emile_config_close(config);
|
|
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)
|
|
{
|
|
emile_config_close(config);
|
|
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)
|
|
{
|
|
emile_config_close(config);
|
|
return 9;
|
|
}
|
|
}
|
|
|
|
if (action & ACTION_BACKUP)
|
|
{
|
|
if (action & ACTION_TEST)
|
|
{
|
|
fprintf(stderr,
|
|
"ERROR: \"--backup\" cannot be used with \"--test\"\n");
|
|
emile_config_close(config);
|
|
return 13;
|
|
}
|
|
|
|
ret = backup_bootblock(partition, backup_path);
|
|
if (ret == -1)
|
|
{
|
|
fprintf(stderr,
|
|
"ERROR: cannot backup bootblock %s to %s\n",
|
|
partition, backup_path);
|
|
emile_config_close(config);
|
|
return 14;
|
|
}
|
|
printf("Bootblock backup successfully done.\n");
|
|
}
|
|
|
|
ret = emile_config_get(config, CONFIG_FIRST_LEVEL, &first_path);
|
|
if (ret == -1)
|
|
return 2;
|
|
|
|
ret = emile_config_get(config, CONFIG_SECOND_LEVEL, &second_path);
|
|
if (ret == -1)
|
|
return 2;
|
|
|
|
fd = open(first_path, O_RDONLY);
|
|
if (fd == -1)
|
|
{
|
|
fprintf(stderr,
|
|
"ERROR: cannot open \"%s\".\n", first_path);
|
|
emile_config_close(config);
|
|
return 20;
|
|
}
|
|
|
|
ret = emile_first_get_param(fd, &drive, &second, &size);
|
|
|
|
close(fd);
|
|
|
|
configuration = set_config(config, drive);
|
|
if (ret)
|
|
return ret;
|
|
|
|
if ((action & ACTION_TEST) == 0)
|
|
{
|
|
/* set configuration in second level */
|
|
|
|
fd = open(second_path, O_RDWR);
|
|
emile_second_set_configuration(fd, configuration);
|
|
close(fd);
|
|
|
|
/* set second info in first level */
|
|
|
|
fd = open(first_path, O_RDWR);
|
|
|
|
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);
|
|
emile_config_close(config);
|
|
return 21;
|
|
}
|
|
|
|
close(fd);
|
|
|
|
/* 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));
|
|
emile_config_close(config);
|
|
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);
|
|
emile_config_close(config);
|
|
return 23;
|
|
}
|
|
}
|
|
}
|
|
|
|
emile_config_close(config);
|
|
return 0;
|
|
}
|