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  * Copyright (c) 1986-1994,2001 by Sun Microsystems, Inc.
24  * All rights reserved.
25  *
26  * Ye olde non-reentrant interface (MT-unsafe, caveat utor)
27  *
28  * lib/libsocket/inet/getservent.c
29  */
30 
31 #pragma ident	"%Z%%M%	%I%	%E% SMI"
32 
33 #include <netdb.h>
34 #include <nss_dbdefs.h>
35 
36 #ifdef	NSS_INCLUDE_UNSAFE
37 
38 /*
39  * Don't free this, even on an endservent(), 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, (int)sizeof (struct servent), NSS_BUFLEN_SERVICES)
46 	/* === ?? set ENOMEM on failure?  */
47 
48 struct servent *
getservbyname(const char * nam,const char * proto)49 getservbyname(const char *nam, const char *proto)
50 {
51 	nss_XbyY_buf_t	*b;
52 	struct servent	*res = 0;
53 
54 	if ((b = GETBUF()) != 0) {
55 		res = getservbyname_r(nam, proto,
56 					b->result, b->buffer, b->buflen);
57 	}
58 	return (res);
59 }
60 
61 struct servent *
getservbyport(int port,const char * proto)62 getservbyport(int port, const char *proto)
63 {
64 	nss_XbyY_buf_t	*b;
65 	struct servent	*res = 0;
66 
67 	if ((b = GETBUF()) != 0) {
68 		res = getservbyport_r(port, proto,
69 					b->result, b->buffer, b->buflen);
70 	}
71 	return (res);
72 }
73 
74 struct servent *
getservent(void)75 getservent(void)
76 {
77 	nss_XbyY_buf_t	*b;
78 	struct servent	*res = 0;
79 
80 	if ((b = GETBUF()) != 0) {
81 		res = getservent_r(b->result, b->buffer, b->buflen);
82 	}
83 	return (res);
84 }
85 
86 #endif	/* NSS_INCLUDE_UNSAFE */
87