]>
git.proxmox.com Git - mirror_edk2.git/blob - StdLib/BsdSocketLib/getservent.c
2 * Copyright (c) 1983, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 #if defined(LIBC_SCCS) && !defined(lint)
35 static char sccsid
[] = "@(#)getservent.c 8.1 (Berkeley) 6/4/93";
36 #endif /* LIBC_SCCS and not lint */
38 #include <sys/types.h>
39 #include <sys/socket.h>
46 #include <rpcsvc/yp_prot.h>
47 #include <rpcsvc/ypclnt.h>
48 static int serv_stepping_yp
= 0;
49 extern int _yp_check
__P(( char ** ));
55 static FILE *servf
= NULL
;
56 static char line
[BUFSIZ
+1];
57 static struct servent serv
;
58 static char *serv_aliases
[MAXALIASES
];
62 char *___getservbyname_yp
= NULL
;
63 char *___getservbyproto_yp
= NULL
;
64 int ___getservbyport_yp
= 0;
65 static char *yp_domain
= NULL
;
68 _getservbyport_yp(line
)
73 char buf
[YPMAXRECORD
+ 2];
76 snprintf(buf
, sizeof(buf
), "%d/%s", ntohs(___getservbyport_yp
),
77 ___getservbyproto_yp
);
79 ___getservbyport_yp
= 0;
80 ___getservbyproto_yp
= NULL
;
83 if(yp_get_default_domain(&yp_domain
))
88 * We have to be a little flexible here. Ideally you're supposed
89 * to have both a services.byname and a services.byport map, but
90 * some systems have only services.byname. FreeBSD cheats a little
91 * by putting the services.byport information in the same map as
92 * services.byname so that either case will work. We allow for both
93 * possibilities here: if there is no services.byport map, we try
94 * services.byname instead.
96 if ((rv
= yp_match(yp_domain
, "services.byport", buf
, strlen(buf
),
97 &result
, &resultlen
))) {
98 if (rv
== YPERR_MAP
) {
99 if (yp_match(yp_domain
, "services.byname", buf
,
100 strlen(buf
), &result
, &resultlen
))
106 /* getservent() expects lines terminated with \n -- make it happy */
107 snprintf(line
, BUFSIZ
, "%.*s\n", resultlen
, result
);
114 _getservbyname_yp(line
)
119 char buf
[YPMAXRECORD
+ 2];
122 if(yp_get_default_domain(&yp_domain
))
126 snprintf(buf
, sizeof(buf
), "%s/%s", ___getservbyname_yp
,
127 ___getservbyproto_yp
);
129 ___getservbyname_yp
= 0;
130 ___getservbyproto_yp
= NULL
;
132 if (yp_match(yp_domain
, "services.byname", buf
, strlen(buf
),
133 &result
, &resultlen
)) {
137 /* getservent() expects lines terminated with \n -- make it happy */
138 snprintf(line
, BUFSIZ
, "%.*s\n", resultlen
, result
);
148 static char *key
= NULL
;
150 char *lastkey
, *result
;
155 if(yp_get_default_domain(&yp_domain
))
159 if (!serv_stepping_yp
) {
162 if ((rv
= yp_first(yp_domain
, "services.byname", &key
, &keylen
,
163 &result
, &resultlen
))) {
164 serv_stepping_yp
= 0;
167 serv_stepping_yp
= 1;
170 rv
= yp_next(yp_domain
, "services.byname", key
, keylen
, &key
,
171 &keylen
, &result
, &resultlen
);
174 serv_stepping_yp
= 0;
179 /* getservent() expects lines terminated with \n -- make it happy */
180 snprintf(line
, BUFSIZ
, "%.*s\n", resultlen
, result
);
192 servf
= fopen(_PATH_SERVICES
, "r" );
212 register char *cp
, **q
;
215 if (serv_stepping_yp
&& _getservent_yp(line
)) {
221 if (servf
== NULL
&& (servf
= fopen(_PATH_SERVICES
, "r" )) == NULL
)
224 if ((p
= fgets(line
, BUFSIZ
, servf
)) == NULL
)
227 if (*p
== '+' && _yp_check(NULL
)) {
228 if (___getservbyname_yp
!= NULL
) {
229 if (!_getservbyname_yp(line
))
232 else if (___getservbyport_yp
!= 0) {
233 if (!_getservbyport_yp(line
))
236 else if (!_getservent_yp(line
))
243 cp
= strpbrk(p
, "#\n");
248 p
= strpbrk(p
, " \t");
252 while (*p
== ' ' || *p
== '\t')
254 cp
= strpbrk(p
, ",/");
258 serv
.s_port
= htons((u_short
)atoi(p
));
260 q
= serv
.s_aliases
= serv_aliases
;
261 cp
= strpbrk(cp
, " \t");
265 if (*cp
== ' ' || *cp
== '\t') {
269 if (q
< &serv_aliases
[MAXALIASES
- 1])
271 cp
= strpbrk(cp
, " \t");