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 * $Id$ 33 */ 34 35 #include <rpc/rpc.h> 36 #include "yp_extern.h" 37 38 #ifndef lint 39 static const char rcsid[] = "$Id$"; 40 #endif 41 42 /* 43 * XXX Must not diverge from what's in src/lib/libc/rpc/svc_udp.c 44 */ 45 46 /* 47 * kept in xprt->xp_p2 48 */ 49 struct svcudp_data { 50 u_int su_iosz; /* byte size of send.recv buffer */ 51 u_long su_xid; /* transaction id */ 52 XDR su_xdrs; /* XDR handle */ 53 char su_verfbody[MAX_AUTH_BYTES]; /* verifier body */ 54 char * su_cache; /* cached data, NULL if no cache */ 55 }; 56 #define su_data(xprt) ((struct svcudp_data *)(xprt->xp_p2)) 57 58 /* 59 * We need to be able to manually set the transaction ID in the 60 * UDP transport handle, but the standard library offers us no way 61 * to do that. Hence we need this garbage. 62 */ 63 64 unsigned long 65 svcudp_get_xid(xprt) 66 SVCXPRT *xprt; 67 { 68 struct svcudp_data *su; 69 70 if (xprt == NULL) 71 return(0); 72 su = su_data(xprt); 73 return(su->su_xid); 74 } 75 76 unsigned long 77 svcudp_set_xid(xprt, xid) 78 SVCXPRT *xprt; 79 unsigned long xid; 80 { 81 struct svcudp_data *su; 82 unsigned long old_xid; 83 84 if (xprt == NULL) 85 return(0); 86 su = su_data(xprt); 87 old_xid = su->su_xid; 88 su->su_xid = xid; 89 return(old_xid); 90 } 91