1 /* $NetBSD: getrpcport.c,v 1.16 2000/01/22 22:19:18 mycroft Exp $ */ 2 3 /*- 4 * SPDX-License-Identifier: BSD-3-Clause 5 * 6 * Copyright (c) 2009, Sun Microsystems, Inc. 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions are met: 11 * - Redistributions of source code must retain the above copyright notice, 12 * this list of conditions and the following disclaimer. 13 * - Redistributions in binary form must reproduce the above copyright notice, 14 * this list of conditions and the following disclaimer in the documentation 15 * and/or other materials provided with the distribution. 16 * - Neither the name of Sun Microsystems, 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 "AS IS" 21 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 24 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 #if defined(LIBC_SCCS) && !defined(lint) 34 static char *sccsid2 = "@(#)getrpcport.c 1.3 87/08/11 SMI"; 35 static char *sccsid = "@(#)getrpcport.c 2.1 88/07/29 4.0 RPCSRC"; 36 #endif 37 #include <sys/cdefs.h> 38 __FBSDID("$FreeBSD$"); 39 40 /* 41 * Copyright (c) 1985 by Sun Microsystems, Inc. 42 */ 43 44 #include "namespace.h" 45 #include <sys/types.h> 46 #include <sys/socket.h> 47 48 #include <assert.h> 49 #include <netdb.h> 50 #include <stdio.h> 51 #include <string.h> 52 53 #include <rpc/rpc.h> 54 #include <rpc/pmap_clnt.h> 55 #include "un-namespace.h" 56 57 int 58 getrpcport(char *host, int prognum, int versnum, int proto) 59 { 60 struct sockaddr_in addr; 61 struct hostent *hp; 62 63 assert(host != NULL); 64 65 if ((hp = gethostbyname(host)) == NULL) 66 return (0); 67 memset(&addr, 0, sizeof(addr)); 68 addr.sin_len = sizeof(struct sockaddr_in); 69 addr.sin_family = AF_INET; 70 addr.sin_port = 0; 71 if (hp->h_length > addr.sin_len) 72 hp->h_length = addr.sin_len; 73 memcpy(&addr.sin_addr.s_addr, hp->h_addr, (size_t)hp->h_length); 74 /* Inconsistent interfaces need casts! :-( */ 75 return (pmap_getport(&addr, (u_long)prognum, (u_long)versnum, 76 (u_int)proto)); 77 } 78