yp_svc_udp.c revision 74610
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 33#ifndef lint 34static const char rcsid[] = 35 "$FreeBSD: head/usr.sbin/ypserv/yp_svc_udp.c 74610 2001-03-21 23:47:18Z wpaul $"; 36#endif /* not lint */ 37 38#include <rpc/rpc.h> 39#include <rpc/svc_dg.h> 40#include "yp_extern.h" 41 42#define su_data(xprt) ((struct svc_dg_data *)(xprt->xp_p2)) 43 44/* 45 * We need to be able to manually set the transaction ID in the 46 * UDP transport handle, but the standard library offers us no way 47 * to do that. Hence we need this garbage. 48 */ 49 50unsigned long 51svcudp_get_xid(xprt) 52 SVCXPRT *xprt; 53{ 54 struct svc_dg_data *su; 55 56 if (xprt == NULL) 57 return(0); 58 su = su_data(xprt); 59 return(su->su_xid); 60} 61 62unsigned long 63svcudp_set_xid(xprt, xid) 64 SVCXPRT *xprt; 65 unsigned long xid; 66{ 67 struct svc_dg_data *su; 68 unsigned long old_xid; 69 70 if (xprt == NULL) 71 return(0); 72 su = su_data(xprt); 73 old_xid = su->su_xid; 74 su->su_xid = xid; 75 return(old_xid); 76} 77