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      1 /*
      2  * CDDL HEADER START
      3  *
      4  * The contents of this file are subject to the terms of the
      5  * Common Development and Distribution License, Version 1.0 only
      6  * (the "License").  You may not use this file except in compliance
      7  * with the License.
      8  *
      9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
     10  * or http://www.opensolaris.org/os/licensing.
     11  * See the License for the specific language governing permissions
     12  * and limitations under the License.
     13  *
     14  * When distributing Covered Code, include this CDDL HEADER in each
     15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
     16  * If applicable, add the following below this CDDL HEADER, with the
     17  * fields enclosed by brackets "[]" replaced with your own identifying
     18  * information: Portions Copyright [yyyy] [name of copyright owner]
     19  *
     20  * CDDL HEADER END
     21  */
     22 
     23 /*
     24  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
     25  * Use is subject to license terms.
     26  */
     27 
     28 /*	Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */
     29 /*	  All Rights Reserved   */
     30 
     31 /*
     32  * Portions of this source code were derived from Berkeley
     33  * under license from the Regents of the University of
     34  * California.
     35  */
     36 
     37 #pragma ident	"%Z%%M%	%I%	%E% SMI"
     38 
     39 #include "mt.h"
     40 #include <stdlib.h>
     41 #include <unistd.h>
     42 #include <rpc/rpc.h>
     43 #include "yp_b.h"
     44 #include <rpcsvc/yp_prot.h>
     45 #include <rpcsvc/ypclnt.h>
     46 #include <sys/types.h>
     47 #include <string.h>
     48 
     49 static int doorder(char *, char *, struct dom_binding *, struct timeval,
     50     unsigned long *);
     51 
     52 
     53 /*
     54  * This checks parameters, and implements the outer "until binding success"
     55  * loop.
     56  */
     57 int
     58 yp_order(char *domain, char *map, unsigned long *order)
     59 {
     60 	size_t domlen;
     61 	size_t maplen;
     62 	int reason;
     63 	struct dom_binding *pdomb;
     64 
     65 	if ((map == NULL) || (domain == NULL))
     66 		return (YPERR_BADARGS);
     67 
     68 	domlen = strlen(domain);
     69 	maplen = strlen(map);
     70 
     71 	if ((domlen == 0) || (domlen > YPMAXDOMAIN) ||
     72 	    (maplen == 0) || (maplen > YPMAXMAP) ||
     73 	    (order == NULL))
     74 		return (YPERR_BADARGS);
     75 
     76 	for (;;) {
     77 
     78 		if (reason = __yp_dobind(domain, &pdomb))
     79 			return (reason);
     80 
     81 		if (pdomb->dom_binding->ypbind_hi_vers >= YPVERS) {
     82 
     83 			reason = doorder(domain, map, pdomb, _ypserv_timeout,
     84 			    order);
     85 
     86 			__yp_rel_binding(pdomb);
     87 			if (reason == YPERR_RPC) {
     88 				yp_unbind(domain);
     89 				(void) sleep(_ypsleeptime);
     90 			} else {
     91 				break;
     92 			}
     93 		} else {
     94 			__yp_rel_binding(pdomb);
     95 			return (YPERR_VERS);
     96 		}
     97 	}
     98 
     99 	return (reason);
    100 }
    101 
    102 /*
    103  * This talks v3 to ypserv
    104  */
    105 static int
    106 doorder(char *domain, char *map, struct dom_binding *pdomb,
    107 				struct timeval timeout, unsigned long *order)
    108 {
    109 	struct ypreq_nokey req;
    110 	struct ypresp_order resp;
    111 	unsigned int retval = 0;
    112 
    113 	req.domain = domain;
    114 	req.map = map;
    115 	(void) memset((char *)&resp, 0, sizeof (struct ypresp_order));
    116 
    117 	/*
    118 	 * Do the get_order request.  If the rpc call failed, return with
    119 	 * status from this point.
    120 	 */
    121 
    122 	if (clnt_call(pdomb->dom_client, YPPROC_ORDER,
    123 			(xdrproc_t)xdr_ypreq_nokey,
    124 		    (char *)&req, (xdrproc_t)xdr_ypresp_order, (char *)&resp,
    125 		    timeout) != RPC_SUCCESS)
    126 		return (YPERR_RPC);
    127 
    128 	/* See if the request succeeded */
    129 
    130 	if (resp.status != YP_TRUE) {
    131 		retval = ypprot_err(resp.status);
    132 	}
    133 
    134 	*order = (unsigned long)resp.ordernum;
    135 	CLNT_FREERES(pdomb->dom_client,
    136 		(xdrproc_t)xdr_ypresp_order, (char *)&resp);
    137 	return (retval);
    138 }
    139