1 /*- 2 * Copyright (c) 2009, Sun Microsystems, Inc. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are met: 7 * - Redistributions of source code must retain the above copyright notice, 8 * this list of conditions and the following disclaimer. 9 * - Redistributions in binary form must reproduce the above copyright notice, 10 * this list of conditions and the following disclaimer in the documentation 11 * and/or other materials provided with the distribution. 12 * - Neither the name of Sun Microsystems, Inc. nor the names of its 13 * contributors may be used to endorse or promote products derived 14 * from this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 * 28 * @(#)getrpcport.c 1.3 87/08/11 SMI 29 * @(#)getrpcport.c 2.1 88/07/29 4.0 RPCSRC 30 * $NetBSD: getrpcport.c,v 1.16 2000/01/22 22:19:18 mycroft Exp $ 31 * $FreeBSD: src/lib/libc/rpc/getrpcport.c,v 1.13 2004/10/16 06:11:34 obrien Exp $ 32 * $DragonFly: src/lib/libc/rpc/getrpcport.c,v 1.3 2005/11/13 12:27:04 swildner Exp $ 33 */ 34 35 /* 36 * Copyright (c) 1985 by Sun Microsystems, Inc. 37 */ 38 39 #include "namespace.h" 40 #include <sys/types.h> 41 #include <sys/socket.h> 42 43 #include <assert.h> 44 #include <netdb.h> 45 #include <stdio.h> 46 #include <string.h> 47 48 #include <rpc/rpc.h> 49 #include <rpc/pmap_clnt.h> 50 #include "un-namespace.h" 51 52 int 53 getrpcport(char *host, int prognum, int versnum, int proto) 54 { 55 struct sockaddr_in addr; 56 struct hostent *hp; 57 58 assert(host != NULL); 59 60 if ((hp = gethostbyname(host)) == NULL) 61 return (0); 62 memset(&addr, 0, sizeof(addr)); 63 addr.sin_len = sizeof(struct sockaddr_in); 64 addr.sin_family = AF_INET; 65 addr.sin_port = 0; 66 if (hp->h_length > addr.sin_len) 67 hp->h_length = addr.sin_len; 68 memcpy(&addr.sin_addr.s_addr, hp->h_addr, (size_t)hp->h_length); 69 /* Inconsistent interfaces need casts! :-( */ 70 return (pmap_getport(&addr, (u_long)prognum, (u_long)versnum, 71 (u_int)proto)); 72 } 73