Function sbappendaddr_locked

freebsd/kern/uipc_sockbuf.c:1195–1213

* Append address and data, and optionally, control (ancillary) data to the * receive queue of a socket. If present, m0 must include a packet header * with total length. Returns 0 if no space in sockbuf or insufficient * mbufs. */

 * mbufs.
 */
int
sbappendaddr_locked(struct sockbuf *sb, const struct sockaddr *asa,
    struct mbuf *m0, struct mbuf *control)
{
	struct mbuf *ctrl_last;
	int space = asa->sa_len;

	SOCKBUF_LOCK_ASSERT(sb);

	if (m0 && (m0->m_flags & M_PKTHDR) == 0)
		panic("sbappendaddr_locked");
	if (m0)
		space += m0->m_pkthdr.len;
	space += m_length(control, &ctrl_last);

	if (space > sbspace(sb))
		return (0);
	return (sbappendaddr_locked_internal(sb, asa, m0, control, ctrl_last));
}

/*
 * Append address and data, and optionally, control (ancillary) data to the