MAX_LOCK_DESC_LEN
char name[MAX_LOCK_DESC_LEN+1];
strncpy((lock)->name, (desc), MAX_LOCK_DESC_LEN); \
(lock)->name[MAX_LOCK_DESC_LEN] = '\0'; \
ocs_vsnprintf(lock->name, MAX_LOCK_DESC_LEN, name, ap);
char name[MAX_LOCK_DESC_LEN];
ocs_strncpy(lock->name, name, MAX_LOCK_DESC_LEN);