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yp_order.c revision 1.14 
      1 /*	$NetBSD: yp_order.c,v 1.14 2012/06/25 22:32:46 abs Exp $	 */
      2 
      3 /*
      4  * Copyright (c) 1992, 1993 Theo de Raadt <deraadt (at) fsa.ca>
      5  * 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  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
     17  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     18  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
     20  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     26  * SUCH DAMAGE.
     27  */
     28 
     29 #include <sys/cdefs.h>
     30 #if defined(LIBC_SCCS) && !defined(lint)
     31 __RCSID("$NetBSD: yp_order.c,v 1.14 2012/06/25 22:32:46 abs Exp $");
     32 #endif
     33 
     34 #include "namespace.h"
     35 #include <string.h>
     36 #include <rpc/rpc.h>
     37 #include <rpcsvc/yp_prot.h>
     38 #include <rpcsvc/ypclnt.h>
     39 #include "local.h"
     40 
     41 extern struct timeval _yplib_timeout;
     42 extern int _yplib_nerrs;
     43 extern int _yplib_bindtries;
     44 
     45 #ifdef __weak_alias
     46 __weak_alias(yp_order,_yp_order)
     47 #endif
     48 
     49 int
     50 yp_order(const char *indomain, const char *inmap, int *outorder)
     51 {
     52 	struct dom_binding *ysd;
     53 	struct ypresp_order ypro;
     54 	struct ypreq_nokey yprnk;
     55 	int r, nerrs = 0;
     56 
     57 	if (_yp_invalid_domain(indomain))
     58 		return YPERR_BADARGS;
     59 	if (inmap == NULL || *inmap == '\0'
     60 	    || strlen(inmap) > YPMAXMAP)
     61 		return YPERR_BADARGS;
     62 	if (outorder == NULL)
     63 		return YPERR_BADARGS;
     64 
     65 again:
     66 	if (_yp_dobind(indomain, &ysd) != 0)
     67 		return YPERR_DOMAIN;
     68 
     69 	yprnk.domain = indomain;
     70 	yprnk.map = inmap;
     71 
     72 	(void)memset(&ypro, 0, sizeof ypro);
     73 
     74 	r = clnt_call(ysd->dom_client, (rpcproc_t)YPPROC_ORDER,
     75 		      (xdrproc_t)xdr_ypreq_nokey, &yprnk,
     76 		      (xdrproc_t)xdr_ypresp_order, &ypro,
     77 		      _yplib_timeout);
     78 	if (r != RPC_SUCCESS) {
     79 		if (_yplib_bindtries <= 0 && ++nerrs == _yplib_nerrs) {
     80 			clnt_perror(ysd->dom_client, "yp_order: clnt_call");
     81 			nerrs = 0;
     82 		} else if (_yplib_bindtries > 0 && ++nerrs == _yplib_bindtries)
     83 			return YPERR_YPSERV;
     84 	        if (r == RPC_PROCUNAVAIL) {
     85 			/* Case of NIS+ server in NIS compat mode */
     86 			r = YPERR_YPERR;
     87 			goto bail;
     88 	        }
     89 		ysd->dom_vers = -1;
     90 		goto again;
     91 	}
     92 	*outorder = ypro.ordernum;
     93 	xdr_free((xdrproc_t)xdr_ypresp_order, (char *)(void *)&ypro);
     94 	r = ypprot_err(ypro.status);
     95 bail:
     96 	__yp_unbind(ysd);
     97 	return r;
     98 }
     99