xref: /illumos-gate/usr/src/lib/libnsl/nss/getrpcent.c (revision 1da57d551424de5a9d469760be7c4b4d4f10a755)
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 /*
29  * Ye olde non-reentrant interface (MT-unsafe, caveat utor)
30  */
31 
32 #include "mt.h"
33 #include <rpc/rpcent.h>
34 #include <nss_dbdefs.h>
35 
36 #ifdef	NSS_INCLUDE_UNSAFE
37 
38 /*
39  * Don't free this, even on an endrpcent(), because bitter experience shows
40  * that there's production code that does getXXXbyYYY(), then endXXXent(),
41  * and then continues to use the pointer it got back.
42  */
43 static nss_XbyY_buf_t *buffer;
44 #define	GETBUF()	\
45 	NSS_XbyY_ALLOC(&buffer, sizeof (struct rpcent), NSS_BUFLEN_RPC)
46 	/* === ?? set ENOMEM on failure?  */
47 
48 struct rpcent *
getrpcbyname(const char * nam)49 getrpcbyname(const char *nam)
50 {
51 	nss_XbyY_buf_t	*b;
52 
53 	if ((b = GETBUF()) == 0)
54 		return (NULL);
55 	return (getrpcbyname_r(nam, b->result, b->buffer, b->buflen));
56 }
57 
58 struct rpcent *
getrpcbynumber(const int num)59 getrpcbynumber(const int num)
60 {
61 	nss_XbyY_buf_t	*b;
62 
63 	if ((b = GETBUF()) == 0)
64 		return (NULL);
65 	return (getrpcbynumber_r(num, b->result, b->buffer, b->buflen));
66 }
67 
68 struct rpcent *
getrpcent(void)69 getrpcent(void)
70 {
71 	nss_XbyY_buf_t	*b;
72 
73 	if ((b = GETBUF()) == 0)
74 		return (NULL);
75 	return (getrpcent_r(b->result, b->buffer, b->buflen));
76 }
77 #endif	/* NSS_INCLUDE_UNSAFE */
78