void
resize_map(unsigned long new_size, partition_map_header *map)
{
partition_map * entry;
partition_map * next;
unsigned int incr;
// find map entry
entry = find_entry_by_type(kMapType, map);
if (entry == NULL) {
printf("Couldn't find entry for map!\n");
return;
}
next = entry->next_by_base;
// same size
if (new_size == entry->data->dpme_pblocks) {
// do nothing
return;
}
// make it smaller
if (new_size < entry->data->dpme_pblocks) {
if (next == NULL
|| istrncmp(next->data->dpme_type, kFreeType, DPISTRLEN) != 0) {
incr = 1;
} else {
incr = 0;
}
if (new_size < map->blocks_in_map + incr) {
printf("New size would be too small\n");
return;
}
goto doit;
}
// make it larger
if (next == NULL
|| istrncmp(next->data->dpme_type, kFreeType, DPISTRLEN) != 0) {
printf("No free space to expand into\n");
return;
}
if (entry->data->dpme_pblock_start + entry->data->dpme_pblocks
!= next->data->dpme_pblock_start) {
printf("No contiguous free space to expand into\n");
return;
}
if (new_size > entry->data->dpme_pblocks + next->data->dpme_pblocks) {
printf("No enough free space\n");
return;
}
doit:
entry->data->dpme_type[0] = 0;
delete_partition_from_map(entry);
add_partition_to_map("Apple", kMapType, 1, new_size, map);
map->maximum_in_map = new_size;
}
partition_map_header *
init_partition_map(char *name, partition_map_header* oldmap)
{
partition_map_header *map;
if (oldmap != NULL) {
printf("map already exists\n");
if (get_okay("do you want to reinit? [n/y]: ", 0) != 1) {
return oldmap;
}
}
map = create_partition_map(name, oldmap);
if (map == NULL) {
return oldmap;
}
close_partition_map(oldmap);
add_partition_to_map("Apple", kMapType,
1, (map->media_size <= 128? 2: 63), map);
return map;
}
void
do_create_partition(partition_map_header *map, int get_type)
{
long base;
long length;
char *name = 0;
char *type_name = 0;
if (map == NULL) {
bad_input("No partition map exists");
return;
}
if (!rflag && map->writable == 0) {
printf("The map is not writable.\n");
}
// XXX add help feature (i.e. '?' in any argument routine prints help string)
if (get_base_argument(&base, map) == 0) {
return;
}
if (get_size_argument(&length, map) == 0) {
return;
}
if (get_string_argument("Name of partition: ", &name, 1) == 0) {
bad_input("Bad name");
return;
}
if (get_type == 0) {
add_partition_to_map(name, kUnixType, base, length, map);
#if 0 /* this check is not found in linux fdisk-0.1 */
if (map->blocks_in_map > MAX_LINUX_MAP) {
error(-1, "Map contains more than %d blocks - Linux may have trouble", MAX_LINUX_MAP);
}
goto xit1;
#endif
} else if (get_string_argument("Type of partition: ", &type_name, 1) == 0) {
bad_input("Bad type");
goto xit1;
} else {
if (istrncmp(type_name, kFreeType, DPISTRLEN) == 0) {
bad_input("Can't create a partition with the Free type");
goto xit2;
}
if (istrncmp(type_name, kMapType, DPISTRLEN) == 0) {
bad_input("Can't create a partition with the Map type");
goto xit2;
}
add_partition_to_map(name, type_name, base, length, map);
#if 0 /* this check is not found in linux fdisk-0.1 */
if (map->blocks_in_map > MAX_LINUX_MAP) {
error(-1, "Map contains more than %d blocks - Linux may have trouble", MAX_LINUX_MAP);
}
#endif
}
do_update_dpme(find_entry_by_base(base,map));
xit2:
if (type_name)
free(type_name);
xit1:
if (name)
free(name);
return;
}
