int main(int argc, char *argv[])
{
int i, nparts;
char *devname;
blkid_probe pr;
blkid_partlist ls;
blkid_parttable root_tab;
if (argc < 2) {
fprintf(stderr, "usage: %s <device|file> "
"-- prints partitions\n",
program_invocation_short_name);
return EXIT_FAILURE;
}
devname = argv[1];
pr = blkid_new_probe_from_filename(devname);
if (!pr)
err(EXIT_FAILURE, "%s: faild to create a new libblkid probe",
devname);
/* Binary interface */
ls = blkid_probe_get_partitions(pr);
if (!ls)
errx(EXIT_FAILURE, "%s: failed to read partitions\n", devname);
/*
* Print info about the primary (root) partition table
*/
root_tab = blkid_partlist_get_table(ls);
if (!root_tab)
errx(EXIT_FAILURE, "%s: does not contains any "
"known partition table\n", devname);
printf("size: %jd, sector size: %u, PT: %s, offset: %jd\n---\n",
blkid_probe_get_size(pr),
blkid_probe_get_sectorsize(pr),
blkid_parttable_get_type(root_tab),
blkid_parttable_get_offset(root_tab));
/*
* List partitions
*/
nparts = blkid_partlist_numof_partitions(ls);
if (!nparts)
goto done;
for (i = 0; i < nparts; i++) {
const char *p;
blkid_partition par = blkid_partlist_get_partition(ls, i);
blkid_parttable tab = blkid_partition_get_table(par);
printf("#%d: %10llu %10llu 0x%x",
blkid_partition_get_partno(par),
(unsigned long long) blkid_partition_get_start(par),
(unsigned long long) blkid_partition_get_size(par),
blkid_partition_get_type(par));
if (root_tab != tab)
/* subpartition (BSD, Minix, ...) */
printf(" (%s)", blkid_parttable_get_type(tab));
p = blkid_partition_get_name(par);
if (p)
printf(" name='%s'", p);
p = blkid_partition_get_uuid(par);
if (p)
printf(" uuid='%s'", p);
p = blkid_partition_get_type_string(par);
if (p)
printf(" type='%s'", p);
putc('\n', stdout);
}
done:
blkid_free_probe(pr);
return EXIT_SUCCESS;
}
static int probe_bsd_pt(blkid_probe pr, const struct blkid_idmag *mag)
{
struct bsd_disklabel *l;
struct bsd_partition *p;
const char *name = "bsd" ;
blkid_parttable tab = NULL;
blkid_partition parent;
blkid_partlist ls;
int i, nparts = BSD_MAXPARTITIONS;
unsigned char *data;
int rc = BLKID_PROBE_NONE;
if (blkid_partitions_need_typeonly(pr))
/* caller does not ask for details about partitions */
return rc;
data = blkid_probe_get_sector(pr, BLKID_MAG_SECTOR(mag));
if (!data) {
if (errno)
rc = -errno;
goto nothing;
}
l = (struct bsd_disklabel *) data + BLKID_MAG_LASTOFFSET(mag);
ls = blkid_probe_get_partlist(pr);
if (!ls)
goto nothing;
/* try to determine the real type of BSD system according to
* (parental) primary partition */
parent = blkid_partlist_get_parent(ls);
if (parent) {
switch(blkid_partition_get_type(parent)) {
case MBR_FREEBSD_PARTITION:
name = "freebsd";
break;
case MBR_NETBSD_PARTITION:
name = "netbsd";
break;
case MBR_OPENBSD_PARTITION:
name = "openbsd";
break;
default:
DBG(LOWPROBE, ul_debug(
"WARNING: BSD label detected on unknown (0x%x) "
"primary partition",
blkid_partition_get_type(parent)));
break;
}
}
tab = blkid_partlist_new_parttable(ls, name, BLKID_MAG_OFFSET(mag));
if (!tab) {
rc = -ENOMEM;
goto nothing;
}
if (le16_to_cpu(l->d_npartitions) < BSD_MAXPARTITIONS)
nparts = le16_to_cpu(l->d_npartitions);
else if (le16_to_cpu(l->d_npartitions) > BSD_MAXPARTITIONS)
DBG(LOWPROBE, ul_debug(
"WARNING: ignore %d more BSD partitions",
le16_to_cpu(l->d_npartitions) - BSD_MAXPARTITIONS));
for (i = 0, p = l->d_partitions; i < nparts; i++, p++) {
blkid_partition par;
uint32_t start, size;
/* TODO: in fdisk-mode returns all non-zero (p_size) partitions */
if (p->p_fstype == BSD_FS_UNUSED)
continue;
start = le32_to_cpu(p->p_offset);
size = le32_to_cpu(p->p_size);
if (parent && blkid_partition_get_start(parent) == start
&& blkid_partition_get_size(parent) == size) {
DBG(LOWPROBE, ul_debug(
"WARNING: BSD partition (%d) same like parent, "
"ignore", i));
continue;
}
if (parent && !blkid_is_nested_dimension(parent, start, size)) {
DBG(LOWPROBE, ul_debug(
"WARNING: BSD partition (%d) overflow "
"detected, ignore", i));
continue;
}
par = blkid_partlist_add_partition(ls, tab, start, size);
if (!par) {
rc = -ENOMEM;
goto nothing;
}
blkid_partition_set_type(par, p->p_fstype);
}
return BLKID_PROBE_OK;
nothing:
return rc;
}
