2 * Copyright (c) 1983, 1993
3 * The Regents of the University of California. All rights reserved.
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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.
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12 * documentation and/or other materials provided with the distribution.
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14 * may be used to endorse or promote products derived from this software
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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
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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
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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 $
35 #include "netdb_private.h"
41 static const ns_src defaultsrc[] = {
42 { NSSRC_FILES, NS_SUCCESS },
47 extern int __proto_id_func(char *, size_t *, va_list, void *);
48 extern int __proto_marshal_func(char *, size_t *, void *, va_list, void *);
49 extern int __proto_unmarshal_func(char *, size_t, void *, va_list, void *);
53 files_getprotobynumber(void *retval, void *mdata __unused, va_list ap)
56 struct protoent_data *ped;
60 struct protoent *pptr;
65 number = va_arg(ap, int);
66 pptr = va_arg(ap, struct protoent *);
67 buffer = va_arg(ap, char *);
68 buflen = va_arg(ap, size_t);
69 errnop = va_arg(ap, int *);
71 if ((ped = __protoent_data_init()) == NULL) {
76 __setprotoent_p(ped->stayopen, ped);
77 while ((error = __getprotoent_p(&pe, ped)) == 0)
78 if (pe.p_proto == number)
86 if (__copy_protoent(&pe, pptr, buffer, buflen) != 0) {
91 *((struct protoent **)retval) = pptr;
96 getprotobynumber_r(int proto, struct protoent *pptr, char *buffer,
97 size_t buflen, struct protoent **result)
100 static const nss_cache_info cache_info =
101 NS_COMMON_CACHE_INFO_INITIALIZER(
102 protocols, (void *)nss_lt_id,
103 __proto_id_func, __proto_marshal_func, __proto_unmarshal_func);
106 static const ns_dtab dtab[] = {
107 { NSSRC_FILES, files_getprotobynumber, NULL },
109 NS_CACHE_CB(&cache_info)
117 rv = nsdispatch(result, dtab, NSDB_PROTOCOLS, "getprotobynumber_r",
118 defaultsrc, proto, pptr, buffer, buflen, &ret_errno);
120 if (rv == NS_SUCCESS)
127 getprotobynumber(int proto)
129 struct protodata *pd;
130 struct protoent *rval;
132 if ((pd = __protodata_init()) == NULL)
134 if (getprotobynumber_r(proto, &pd->proto, pd->data, sizeof(pd->data),