xref: /illumos-gate/usr/src/lib/libnsl/yp/yp_order.c (revision f17620a4f72a29025a22655ba8735ccd20ae174f)
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 #include "mt.h"
38 #include <stdlib.h>
39 #include <unistd.h>
40 #include <rpc/rpc.h>
41 #include "yp_b.h"
42 #include <rpcsvc/yp_prot.h>
43 #include <rpcsvc/ypclnt.h>
44 #include <sys/types.h>
45 #include <string.h>
46 
47 static int doorder(char *, char *, struct dom_binding *, struct timeval,
48     unsigned long *);
49 
50 
51 /*
52  * This checks parameters, and implements the outer "until binding success"
53  * loop.
54  */
55 int
56 yp_order(char *domain, char *map, unsigned long *order)
57 {
58 	size_t domlen;
59 	size_t maplen;
60 	int reason;
61 	struct dom_binding *pdomb;
62 
63 	if ((map == NULL) || (domain == NULL))
64 		return (YPERR_BADARGS);
65 
66 	domlen = strlen(domain);
67 	maplen = strlen(map);
68 
69 	if ((domlen == 0) || (domlen > YPMAXDOMAIN) ||
70 	    (maplen == 0) || (maplen > YPMAXMAP) ||
71 	    (order == NULL))
72 		return (YPERR_BADARGS);
73 
74 	for (;;) {
75 
76 		if (reason = __yp_dobind(domain, &pdomb))
77 			return (reason);
78 
79 		if (pdomb->dom_binding->ypbind_hi_vers >= YPVERS) {
80 
81 			reason = doorder(domain, map, pdomb, _ypserv_timeout,
82 			    order);
83 
84 			__yp_rel_binding(pdomb);
85 			if (reason == YPERR_RPC) {
86 				yp_unbind(domain);
87 				(void) sleep(_ypsleeptime);
88 			} else {
89 				break;
90 			}
91 		} else {
92 			__yp_rel_binding(pdomb);
93 			return (YPERR_VERS);
94 		}
95 	}
96 
97 	return (reason);
98 }
99 
100 /*
101  * This talks v3 to ypserv
102  */
103 static int
104 doorder(char *domain, char *map, struct dom_binding *pdomb,
105 				struct timeval timeout, unsigned long *order)
106 {
107 	struct ypreq_nokey req;
108 	struct ypresp_order resp;
109 	unsigned int retval = 0;
110 
111 	req.domain = domain;
112 	req.map = map;
113 	(void) memset((char *)&resp, 0, sizeof (struct ypresp_order));
114 
115 	/*
116 	 * Do the get_order request.  If the rpc call failed, return with
117 	 * status from this point.
118 	 */
119 
120 	if (clnt_call(pdomb->dom_client, YPPROC_ORDER,
121 			(xdrproc_t)xdr_ypreq_nokey,
122 		    (char *)&req, (xdrproc_t)xdr_ypresp_order, (char *)&resp,
123 		    timeout) != RPC_SUCCESS)
124 		return (YPERR_RPC);
125 
126 	/* See if the request succeeded */
127 
128 	if (resp.status != YP_TRUE) {
129 		retval = ypprot_err(resp.status);
130 	}
131 
132 	*order = (unsigned long)resp.ordernum;
133 	CLNT_FREERES(pdomb->dom_client,
134 		(xdrproc_t)xdr_ypresp_order, (char *)&resp);
135 	return (retval);
136 }
137