1 /* $OpenBSD: getrpcport.c,v 1.8 2010/09/01 14:43:34 millert Exp $ */
2
3 /*
4 * Copyright (c) 2010, Oracle America, Inc.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are
8 * met:
9 *
10 * * Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * * Redistributions in binary form must reproduce the above
13 * copyright notice, this list of conditions and the following
14 * disclaimer in the documentation and/or other materials
15 * provided with the distribution.
16 * * Neither the name of the "Oracle America, Inc." nor the names of its
17 * contributors may be used to endorse or promote products derived
18 * from this software without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
23 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
24 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
25 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
27 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
29 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
30 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 */
33
34 #include <stdio.h>
35 #include <string.h>
36 #include <rpc/rpc.h>
37 #include <rpc/pmap_clnt.h>
38 #include <netdb.h>
39 #include <sys/socket.h>
40
41 int
getrpcport(char * host,int prognum,int versnum,int proto)42 getrpcport(char *host, int prognum, int versnum, int proto)
43 {
44 struct sockaddr_in addr;
45 struct hostent *hp;
46
47 if ((hp = gethostbyname(host)) == NULL)
48 return (0);
49 memset(&addr, 0, sizeof(addr));
50 addr.sin_len = sizeof(struct sockaddr_in);
51 addr.sin_family = AF_INET;
52 addr.sin_port = 0;
53 memcpy((char *)&addr.sin_addr, hp->h_addr, hp->h_length);
54 return (pmap_getport(&addr, prognum, versnum, proto));
55 }
56