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 /* 34 * Copyright (c) 1985 by Sun Microsystems, Inc. 35 */ 36 37 #include "namespace.h" 38 #include <sys/types.h> 39 #include <sys/socket.h> 40 41 #include <assert.h> 42 #include <netdb.h> 43 #include <stdio.h> 44 #include <string.h> 45 46 #include <rpc/rpc.h> 47 #include <rpc/pmap_clnt.h> 48 #include "un-namespace.h" 49 50 int 51 getrpcport(char *host, int prognum, int versnum, int proto) 52 { 53 struct sockaddr_in addr; 54 struct hostent *hp; 55 56 assert(host != NULL); 57 58 if ((hp = gethostbyname2(host, AF_INET)) == NULL) 59 return (0); 60 memset(&addr, 0, sizeof(addr)); 61 addr.sin_len = sizeof(struct sockaddr_in); 62 addr.sin_family = AF_INET; 63 addr.sin_port = 0; 64 if (hp->h_length > sizeof(addr.sin_addr.s_addr)) 65 hp->h_length = sizeof(addr.sin_addr.s_addr); 66 memcpy(&addr.sin_addr.s_addr, hp->h_addr, (size_t)hp->h_length); 67 /* Inconsistent interfaces need casts! :-( */ 68 return (pmap_getport(&addr, (u_long)prognum, (u_long)versnum, 69 (u_int)proto)); 70 } 71