1 /*- 2 * SPDX-License-Identifier: BSD-4-Clause 3 * 4 * Copyright (c) 1996 5 * Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by Bill Paul. 18 * 4. Neither the name of the author nor the names of any co-contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 */ 34 35 #include <sys/cdefs.h> 36 #include <rpc/rpc.h> 37 #include <rpc/svc_dg.h> 38 #include "yp_extern.h" 39 40 #define su_data(xprt) ((struct svc_dg_data *)((xprt)->xp_p2)) 41 42 /* 43 * We need to be able to manually set the transaction ID in the 44 * UDP transport handle, but the standard library offers us no way 45 * to do that. Hence we need this garbage. 46 */ 47 48 unsigned long 49 svcudp_get_xid(SVCXPRT *xprt) 50 { 51 struct svc_dg_data *su; 52 53 if (xprt == NULL) 54 return(0); 55 su = su_data(xprt); 56 return(su->su_xid); 57 } 58 59 unsigned long 60 svcudp_set_xid(SVCXPRT *xprt, unsigned long xid) 61 { 62 struct svc_dg_data *su; 63 unsigned long old_xid; 64 65 if (xprt == NULL) 66 return(0); 67 su = su_data(xprt); 68 old_xid = su->su_xid; 69 su->su_xid = xid; 70 return(old_xid); 71 } 72