1/* Obtain the RPC port number for an RPC service on a host.
2 Copyright (C) 2016-2023 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public License as
7 published by the Free Software Foundation; either version 2.1 of the
8 License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; see the file COPYING.LIB. If
17 not, see <https://www.gnu.org/licenses/>. */
18
19/*
20 * Copyright (c) 2010, Oracle America, Inc.
21 *
22 * Redistribution and use in source and binary forms, with or without
23 * modification, are permitted provided that the following conditions are
24 * met:
25 *
26 * * Redistributions of source code must retain the above copyright
27 * notice, this list of conditions and the following disclaimer.
28 * * Redistributions in binary form must reproduce the above
29 * copyright notice, this list of conditions and the following
30 * disclaimer in the documentation and/or other materials
31 * provided with the distribution.
32 * * Neither the name of the "Oracle America, Inc." nor the names of its
33 * contributors may be used to endorse or promote products derived
34 * from this software without specific prior written permission.
35 *
36 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
37 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
38 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
39 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
40 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
41 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
42 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
43 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
44 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
45 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
46 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
47 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
48 */
49
50#include <alloca.h>
51#include <errno.h>
52#include <stdio.h>
53#include <netdb.h>
54#include <string.h>
55#include <rpc/rpc.h>
56#include <rpc/clnt.h>
57#include <rpc/pmap_clnt.h>
58#include <sys/socket.h>
59
60int
61getrpcport (const char *host, u_long prognum, u_long versnum, u_int proto)
62{
63 struct sockaddr_in addr;
64
65 if (__libc_rpc_gethostbyname (host, &addr) != 0)
66 return 0;
67 return pmap_getport (&addr, prognum, versnum, proto);
68}
69#ifdef SHARED
70# ifndef EXPORT_RPC_SYMBOLS
71compat_symbol (libc, getrpcport, getrpcport, GLIBC_2_0);
72# endif
73#endif
74