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__rpc_getxid.c revision 1.3 
      1 /*	$NetBSD: __rpc_getxid.c,v 1.3 2003/09/13 21:27:46 itojun Exp $	*/
      2 /*	$OpenBSD: ip_id.c,v 1.6 2002/03/15 18:19:52 millert Exp $	*/
      3 
      4 /*
      5  * Copyright (C) 2003 WIDE Project.
      6  * All rights reserved.
      7  *
      8  * Redistribution and use in source and binary forms, with or without
      9  * modification, are permitted provided that the following conditions
     10  * are met:
     11  * 1. Redistributions of source code must retain the above copyright
     12  *    notice, this list of conditions and the following disclaimer.
     13  * 2. Redistributions in binary form must reproduce the above copyright
     14  *    notice, this list of conditions and the following disclaimer in the
     15  *    documentation and/or other materials provided with the distribution.
     16  * 3. Neither the name of the project nor the names of its 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 THE PROJECT 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 THE PROJECT 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 #include <sys/cdefs.h>
     34 #if defined(LIBC_SCCS) && !defined(lint)
     35 __RCSID("$NetBSD: __rpc_getxid.c,v 1.3 2003/09/13 21:27:46 itojun Exp $");
     36 #endif
     37 
     38 #include <sys/types.h>
     39 
     40 #include "namespace.h"
     41 
     42 #include <stdlib.h>
     43 #include <randomid.h>
     44 #include <rpc/rpc.h>
     45 #include "rpc_internal.h"
     46 
     47 u_int32_t
     48 __rpc_getxid(void)
     49 {
     50 	static randomid_t ctx = NULL;
     51 
     52 	if (!ctx) {
     53 		ctx = randomid_new(32, RANDOMID_TIMEO_DEFAULT);
     54 		if (!ctx)
     55 			abort();
     56 	}
     57 
     58 	return randomid(ctx);
     59 }
     60