+ return (0);
+}
+
+unp_detach(unp)
+ register struct unpcb *unp;
+{
+
+ if (unp->unp_vnode) {
+ unp->unp_vnode->v_socket = 0;
+ vrele(unp->unp_vnode);
+ unp->unp_vnode = 0;
+ }
+ if (unp->unp_conn)
+ unp_disconnect(unp);
+ while (unp->unp_refs)
+ unp_drop(unp->unp_refs, ECONNRESET);
+ soisdisconnected(unp->unp_socket);
+ unp->unp_socket->so_pcb = 0;
+ m_freem(unp->unp_addr);
+ (void) m_free(dtom(unp));
+ if (unp_rights)
+ unp_gc();
+}
+
+unp_bind(unp, nam)
+ struct unpcb *unp;
+ struct mbuf *nam;
+{
+ struct sockaddr_un *soun = mtod(nam, struct sockaddr_un *);
+ register struct vnode *vp;
+ register struct nameidata *ndp = &u.u_nd;
+ struct vattr vattr;
+ int error;
+
+ ndp->ni_dirp = soun->sun_path;
+ if (unp->unp_vnode != NULL)
+ return (EINVAL);
+ if (nam->m_len == MLEN) {
+ if (*(mtod(nam, caddr_t) + nam->m_len - 1) != 0)
+ return (EINVAL);
+ } else
+ *(mtod(nam, caddr_t) + nam->m_len) = 0;
+/* SHOULD BE ABLE TO ADOPT EXISTING AND wakeup() ALA FIFO's */
+ ndp->ni_nameiop = CREATE | FOLLOW | LOCKPARENT;
+ ndp->ni_segflg = UIO_SYSSPACE;
+ if (error = namei(ndp))
+ return (error);
+ vp = ndp->ni_vp;
+ if (vp != NULL) {
+ VOP_ABORTOP(ndp);
+ if (ndp->ni_dvp == vp)
+ vrele(ndp->ni_dvp);
+ else
+ vput(ndp->ni_dvp);
+ vrele(vp);
+ return (EADDRINUSE);
+ }
+ VATTR_NULL(&vattr);
+ vattr.va_type = VSOCK;
+ vattr.va_mode = 0777;
+ if (error = VOP_CREATE(ndp, &vattr))
+ return (error);
+ vp = ndp->ni_vp;
+ vp->v_socket = unp->unp_socket;
+ unp->unp_vnode = vp;
+ unp->unp_addr = m_copy(nam, 0, (int)M_COPYALL);
+ VOP_UNLOCK(vp);
+ return (0);
+}
+
+unp_connect(so, nam)
+ struct socket *so;
+ struct mbuf *nam;
+{
+ register struct sockaddr_un *soun = mtod(nam, struct sockaddr_un *);
+ register struct vnode *vp;
+ register struct socket *so2, *so3;
+ register struct nameidata *ndp = &u.u_nd;
+ struct unpcb *unp2, *unp3;
+ int error;
+
+ ndp->ni_dirp = soun->sun_path;
+ if (nam->m_data + nam->m_len == &nam->m_dat[MLEN]) { /* XXX */
+ if (*(mtod(nam, caddr_t) + nam->m_len - 1) != 0)
+ return (EMSGSIZE);
+ } else
+ *(mtod(nam, caddr_t) + nam->m_len) = 0;
+ ndp->ni_nameiop = LOOKUP | FOLLOW | LOCKLEAF;
+ ndp->ni_segflg = UIO_SYSSPACE;
+ if (error = namei(ndp))
+ return (error);
+ vp = ndp->ni_vp;
+ if (vp->v_type != VSOCK) {
+ error = ENOTSOCK;
+ goto bad;
+ }
+ if (error = VOP_ACCESS(vp, VWRITE, ndp->ni_cred))
+ goto bad;
+ so2 = vp->v_socket;
+ if (so2 == 0) {
+ error = ECONNREFUSED;
+ goto bad;
+ }
+ if (so->so_type != so2->so_type) {
+ error = EPROTOTYPE;
+ goto bad;
+ }
+ if (so->so_proto->pr_flags & PR_CONNREQUIRED) {
+ if ((so2->so_options & SO_ACCEPTCONN) == 0 ||
+ (so3 = sonewconn(so2, 0)) == 0) {
+ error = ECONNREFUSED;