parse_uuid
error = parse_uuid(type + 1, &tmp);
error = parse_uuid(type + 1, &tmp);
error = parse_uuid(buf + LDM_PH_DISKGUID_OFF, &hdr->disk_guid);
error = parse_uuid(buf + LDM_PH_DGGUID_OFF, &hdr->dg_guid);
error = parse_uuid(buf + LDM_DB_DGGUID_OFF, &dg_guid);
error = parse_uuid(vstr, &blk->u.disk.guid);
error = parse_uuid(name, &blk->u.disk_group.guid);
int parse_uuid(const char *, struct uuid *);