1 /* $NetBSD: getrpcport.c,v 1.16 2000/01/22 22:19:18 mycroft Exp $ */ 2 3 /*- 4 * Copyright (c) 2009, Sun Microsystems, Inc. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions are met: 9 * - Redistributions of source code must retain the above copyright notice, 10 * this list of conditions and the following disclaimer. 11 * - Redistributions in binary form must reproduce the above copyright notice, 12 * this list of conditions and the following disclaimer in the documentation 13 * and/or other materials provided with the distribution. 14 * - Neither the name of Sun Microsystems, Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived 16 * from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 22 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28 * POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #if defined(LIBC_SCCS) && !defined(lint) 32 static char *sccsid2 = "@(#)getrpcport.c 1.3 87/08/11 SMI"; 33 static char *sccsid = "@(#)getrpcport.c 2.1 88/07/29 4.0 RPCSRC"; 34 #endif 35 #include <sys/cdefs.h> 36 __FBSDID("$FreeBSD$"); 37 38 /* 39 * Copyright (c) 1985 by Sun Microsystems, Inc. 40 */ 41 42 #include "namespace.h" 43 #include <sys/types.h> 44 #include <sys/socket.h> 45 46 #include <assert.h> 47 #include <netdb.h> 48 #include <stdio.h> 49 #include <string.h> 50 51 #include <rpc/rpc.h> 52 #include <rpc/pmap_clnt.h> 53 #include "un-namespace.h" 54 55 int 56 getrpcport(host, prognum, versnum, proto) 57 char *host; 58 int prognum, versnum, 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