xref: /onnv-gate/usr/src/lib/libsocket/inet/getservent.c (revision 0:68f95e015346)
1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate  * CDDL HEADER START
3*0Sstevel@tonic-gate  *
4*0Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
7*0Sstevel@tonic-gate  * with the License.
8*0Sstevel@tonic-gate  *
9*0Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate  * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate  * and limitations under the License.
13*0Sstevel@tonic-gate  *
14*0Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate  *
20*0Sstevel@tonic-gate  * CDDL HEADER END
21*0Sstevel@tonic-gate  */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate  * Copyright (c) 1986-1994,2001 by Sun Microsystems, Inc.
24*0Sstevel@tonic-gate  * All rights reserved.
25*0Sstevel@tonic-gate  *
26*0Sstevel@tonic-gate  * Ye olde non-reentrant interface (MT-unsafe, caveat utor)
27*0Sstevel@tonic-gate  *
28*0Sstevel@tonic-gate  * lib/libsocket/inet/getservent.c
29*0Sstevel@tonic-gate  */
30*0Sstevel@tonic-gate 
31*0Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
32*0Sstevel@tonic-gate 
33*0Sstevel@tonic-gate #include <netdb.h>
34*0Sstevel@tonic-gate #include <nss_dbdefs.h>
35*0Sstevel@tonic-gate 
36*0Sstevel@tonic-gate #ifdef	NSS_INCLUDE_UNSAFE
37*0Sstevel@tonic-gate 
38*0Sstevel@tonic-gate /*
39*0Sstevel@tonic-gate  * Don't free this, even on an endservent(), because bitter experience shows
40*0Sstevel@tonic-gate  * that there's production code that does getXXXbyYYY(), then endXXXent(),
41*0Sstevel@tonic-gate  * and then continues to use the pointer it got back.
42*0Sstevel@tonic-gate  */
43*0Sstevel@tonic-gate static nss_XbyY_buf_t *buffer;
44*0Sstevel@tonic-gate #define	GETBUF()						\
45*0Sstevel@tonic-gate NSS_XbyY_ALLOC(&buffer, (int)sizeof (struct servent), NSS_BUFLEN_SERVICES)
46*0Sstevel@tonic-gate 	/* === ?? set ENOMEM on failure?  */
47*0Sstevel@tonic-gate 
48*0Sstevel@tonic-gate struct servent *
getservbyname(const char * nam,const char * proto)49*0Sstevel@tonic-gate getservbyname(const char *nam, const char *proto)
50*0Sstevel@tonic-gate {
51*0Sstevel@tonic-gate 	nss_XbyY_buf_t	*b;
52*0Sstevel@tonic-gate 	struct servent	*res = 0;
53*0Sstevel@tonic-gate 
54*0Sstevel@tonic-gate 	if ((b = GETBUF()) != 0) {
55*0Sstevel@tonic-gate 		res = getservbyname_r(nam, proto,
56*0Sstevel@tonic-gate 					b->result, b->buffer, b->buflen);
57*0Sstevel@tonic-gate 	}
58*0Sstevel@tonic-gate 	return (res);
59*0Sstevel@tonic-gate }
60*0Sstevel@tonic-gate 
61*0Sstevel@tonic-gate struct servent *
getservbyport(int port,const char * proto)62*0Sstevel@tonic-gate getservbyport(int port, const char *proto)
63*0Sstevel@tonic-gate {
64*0Sstevel@tonic-gate 	nss_XbyY_buf_t	*b;
65*0Sstevel@tonic-gate 	struct servent	*res = 0;
66*0Sstevel@tonic-gate 
67*0Sstevel@tonic-gate 	if ((b = GETBUF()) != 0) {
68*0Sstevel@tonic-gate 		res = getservbyport_r(port, proto,
69*0Sstevel@tonic-gate 					b->result, b->buffer, b->buflen);
70*0Sstevel@tonic-gate 	}
71*0Sstevel@tonic-gate 	return (res);
72*0Sstevel@tonic-gate }
73*0Sstevel@tonic-gate 
74*0Sstevel@tonic-gate struct servent *
getservent(void)75*0Sstevel@tonic-gate getservent(void)
76*0Sstevel@tonic-gate {
77*0Sstevel@tonic-gate 	nss_XbyY_buf_t	*b;
78*0Sstevel@tonic-gate 	struct servent	*res = 0;
79*0Sstevel@tonic-gate 
80*0Sstevel@tonic-gate 	if ((b = GETBUF()) != 0) {
81*0Sstevel@tonic-gate 		res = getservent_r(b->result, b->buffer, b->buflen);
82*0Sstevel@tonic-gate 	}
83*0Sstevel@tonic-gate 	return (res);
84*0Sstevel@tonic-gate }
85*0Sstevel@tonic-gate 
86*0Sstevel@tonic-gate #endif	/* NSS_INCLUDE_UNSAFE */
87