xref: /illumos-gate/usr/src/lib/libnsl/yp/yp_order.c (revision e8031f0a)
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
yp_order(char * domain,char * map,unsigned long * order)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
doorder(char * domain,char * map,struct dom_binding * pdomb,struct timeval timeout,unsigned long * order)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