rem: if (space > sbspace(sb))
add: if (space > (int) sbspace(sb))
context: int sockbuf_appendaddr(struct sockbuf *sb, struct sockaddr *asa, 		 struct mbuf *m0, struct mbuf *control){	struct mbuf *m, *n;	int space = asa->sa_len;	if (m0 && (m0->m_flags & M_PKTHDR) == 0)		return(-1);	if (m0)		space += m0->m_pkthdr.len;	for (n = control; n; n = n->m_next) {		space += n->m_len;		if (n->m_next == 0)     /* keep pointer to last control buf */			break;	}	if (space > sbspace(sb))		return (0);	if (asa->sa_len > MLEN)		return (0);	MGET(m, MT_SONAME);	if (m == NULL)		return (0);	m->m_len = asa->sa_len;	memcpy(mtod(m, caddr_t), (caddr_t)asa, asa->sa_len);	if (n)		n->m_next = m0;         /* concatenate data to control */	else		control = m0;	m->m_next = control;	for (n = m; n; n = n->m_next)		sballoc(sb, n);	if ((n = sb->sb_mb) != NULL) {		while (n->m_nextpkt)			n = n->m_nextpkt;		n->m_nextpkt = m;	} else		sb->sb_mb = m;	return (1);}