xref: /netbsd-src/lib/libc/yp/yp_maplist.c (revision bdc22b2e01993381dcefeff2bc9b56ca75a4235c)
1 /*	$NetBSD: yp_maplist.c,v 1.13 2012/06/25 22:32:46 abs Exp $	 */
2 
3 /*
4  * Copyright (c) 1992, 1993 Theo de Raadt <deraadt@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_maplist.c,v 1.13 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_maplist,_yp_maplist)
47 #endif
48 
49 int
50 yp_maplist( const char *indomain, struct ypmaplist **outmaplist)
51 {
52 	struct dom_binding *ysd;
53 	struct ypresp_maplist ypml;
54 	int r, nerrs = 0;
55 
56 	if (_yp_invalid_domain(indomain))
57 		return YPERR_BADARGS;
58 	if (outmaplist == NULL)
59 		return YPERR_BADARGS;
60 again:
61 	if (_yp_dobind(indomain, &ysd) != 0)
62 		return YPERR_DOMAIN;
63 
64 	memset(&ypml, 0, sizeof ypml);
65 
66 	r = clnt_call(ysd->dom_client, (rpcproc_t)YPPROC_MAPLIST,
67 		   (xdrproc_t)xdr_ypdomain_wrap_string, &indomain,
68 		   (xdrproc_t)xdr_ypresp_maplist, &ypml, _yplib_timeout);
69 	if (r != RPC_SUCCESS) {
70 		if (_yplib_bindtries <= 0 && ++nerrs == _yplib_nerrs) {
71 			clnt_perror(ysd->dom_client, "yp_maplist: clnt_call");
72 			nerrs = 0;
73 		} else if (_yplib_bindtries > 0 && ++nerrs == _yplib_bindtries)
74 			return YPERR_YPSERV;
75 		ysd->dom_vers = -1;
76 		goto again;
77 	}
78 	*outmaplist = ypml.list;
79 	/* NO: xdr_free(xdr_ypresp_maplist, &ypml); */
80 	__yp_unbind(ysd);
81 	return ypprot_err(ypml.status);
82 }
83