1 /* 2 * Copyright (c) 1996 3 * Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by Bill Paul. 16 * 4. Neither the name of the author nor the names of any co-contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 * $FreeBSD: src/usr.sbin/ypserv/yp_svc_udp.c,v 1.8 2003/05/03 21:06:42 obrien Exp $ 33 */ 34 35 #include <rpc/rpc.h> 36 #include <rpc/svc_dg.h> 37 #include "yp_extern.h" 38 39 #define su_data(xprt) ((struct svc_dg_data *)(xprt->xp_p2)) 40 41 /* 42 * We need to be able to manually set the transaction ID in the 43 * UDP transport handle, but the standard library offers us no way 44 * to do that. Hence we need this garbage. 45 */ 46 47 unsigned long 48 svcudp_get_xid(SVCXPRT *xprt) 49 { 50 struct svc_dg_data *su; 51 52 if (xprt == NULL) 53 return(0); 54 su = su_data(xprt); 55 return(su->su_xid); 56 } 57 58 unsigned long 59 svcudp_set_xid(SVCXPRT *xprt, unsigned long xid) 60 { 61 struct svc_dg_data *su; 62 unsigned long old_xid; 63 64 if (xprt == NULL) 65 return(0); 66 su = su_data(xprt); 67 old_xid = su->su_xid; 68 su->su_xid = xid; 69 return(old_xid); 70 } 71