Function sctp_alloc_key

freebsd/netinet/sctp_auth.c:243–256

* allocate structure space for a key of length keylen */

 * allocate structure space for a key of length keylen
 */
sctp_key_t *
sctp_alloc_key(uint32_t keylen)
{
	sctp_key_t *new_key;

	SCTP_MALLOC(new_key, sctp_key_t *, sizeof(*new_key) + keylen,
	    SCTP_M_AUTH_KY);
	if (new_key == NULL) {
		/* out of memory */
		return (NULL);
	}
	new_key->keylen = keylen;
	return (new_key);
}

void
sctp_free_key(sctp_key_t *key)