/*- * Copyright (c) 1993 The Regents of the University of California. * All rights reserved. * * This code is derived from software contributed to Berkeley by * Bill Jolitz. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #ifndef lint static char sccsid[] = "@(#)rcv.c 5.2 (Berkeley) 5/29/93"; #endif /* not lint */ #include "main.h" /* * Recieve a message from a customer, * put in data structures and return message request type */ int rcvrequest(sock, cp, opts, optlen, rfdp) int sock ; struct conversation *cp ; char **opts; int *optlen, *rfdp ; { int rv ; struct iovec iov[4]; int rqstfmt; struct msghdr msg ; struct connectdomain *cdp; cdp = &cp->co_cd ; msg.msg_name = ""; /* optional address */ msg.msg_namelen = 0 ; /* size of address */ iov[0].iov_base = (caddr_t) &rqstfmt ; iov[0].iov_len = sizeof (rqstfmt) ; iov[1].iov_base = (caddr_t) cdp ; iov[1].iov_len = sizeof(cp->co_optionsbuf) + sizeof (cp->co_cd) ; msg.msg_iov = iov; msg.msg_iovlen = 2; msg.msg_accrights = (caddr_t) rfdp ; msg.msg_accrightslen = 4; if ((rv = recvmsg (sock, &msg, 0)) <= 0 ) { perror("connection request message recieve") ; return (-1) ; } if (iov[1].iov_len > CDSIZE(cdp)) { *optlen = iov[1].iov_len - CDSIZE(cdp) ; *opts = iov[1].iov_base + CDSIZE(cdp); } else *optlen = 0 ; if (msg.msg_accrightslen != 4) *rfdp = -1 ; return (rqstfmt) ; }