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. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * @(#)getproto.c 8.1 (Berkeley) 6/4/93
30 * $FreeBSD: src/lib/libc/net/getproto.c,v 1.7 2007/01/09 00:28:02 imp Exp $
31 * $DragonFly: src/lib/libc/net/getproto.c,v 1.5 2005/11/13 02:04:47 swildner Exp $
36 #include "netdb_private.h"
42 static const ns_src defaultsrc
[] = {
43 { NSSRC_FILES
, NS_SUCCESS
},
48 extern int __proto_id_func(char *, size_t *, va_list, void *);
49 extern int __proto_marshal_func(char *, size_t *, void *, va_list, void *);
50 extern int __proto_unmarshal_func(char *, size_t, void *, va_list, void *);
54 files_getprotobynumber(void *retval
, void *mdata
, va_list ap
)
57 struct protoent_data
*ped
;
61 struct protoent
*pptr
;
66 number
= va_arg(ap
, int);
67 pptr
= va_arg(ap
, struct protoent
*);
68 buffer
= va_arg(ap
, char *);
69 buflen
= va_arg(ap
, size_t);
70 errnop
= va_arg(ap
, int *);
72 if ((ped
= __protoent_data_init()) == NULL
) {
77 __setprotoent_p(ped
->stayopen
, ped
);
78 while ((error
= __getprotoent_p(&pe
, ped
)) == 0)
79 if (pe
.p_proto
== number
)
87 if (__copy_protoent(&pe
, pptr
, buffer
, buflen
) != 0) {
92 *((struct protoent
**)retval
) = pptr
;
97 getprotobynumber_r(int proto
, struct protoent
*pptr
, char *buffer
,
98 size_t buflen
, struct protoent
**result
)
101 static const nss_cache_info cache_info
=
102 NS_COMMON_CACHE_INFO_INITIALIZER(
103 protocols
, (void *)nss_lt_id
,
104 __proto_id_func
, __proto_marshal_func
, __proto_unmarshal_func
);
107 static const ns_dtab dtab
[] = {
108 { NSSRC_FILES
, files_getprotobynumber
, NULL
},
110 NS_CACHE_CB(&cache_info
)
118 rv
= nsdispatch(result
, dtab
, NSDB_PROTOCOLS
, "getprotobynumber_r",
119 defaultsrc
, proto
, pptr
, buffer
, buflen
, &ret_errno
);
121 if (rv
== NS_SUCCESS
)
128 getprotobynumber(int proto
)
130 struct protodata
*pd
;
131 struct protoent
*rval
;
133 if ((pd
= __protodata_init()) == NULL
)
135 if (getprotobynumber_r(proto
, &pd
->proto
, pd
->data
, sizeof(pd
->data
),