1 /* $NetBSD: getrpcport.c,v 1.17 2012/03/20 17:14:50 matt Exp $ */ 2 3 /* 4 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for 5 * unrestricted use provided that this legend is included on all tape 6 * media and as a part of the software program in whole or part. Users 7 * may copy or modify Sun RPC without charge, but are not authorized 8 * to license or distribute it to anyone else except as part of a product or 9 * program developed by the user. 10 * 11 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE 12 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR 13 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE. 14 * 15 * Sun RPC is provided with no support and without any obligation on the 16 * part of Sun Microsystems, Inc. to assist in its use, correction, 17 * modification or enhancement. 18 * 19 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE 20 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC 21 * OR ANY PART THEREOF. 22 * 23 * In no event will Sun Microsystems, Inc. be liable for any lost revenue 24 * or profits or other special, indirect and consequential damages, even if 25 * Sun has been advised of the possibility of such damages. 26 * 27 * Sun Microsystems, Inc. 28 * 2550 Garcia Avenue 29 * Mountain View, California 94043 30 */ 31 32 #include <sys/cdefs.h> 33 #if defined(LIBC_SCCS) && !defined(lint) 34 #if 0 35 static char *sccsid = "@(#)getrpcport.c 1.3 87/08/11 SMI"; 36 static char *sccsid = "@(#)getrpcport.c 2.1 88/07/29 4.0 RPCSRC"; 37 #else 38 __RCSID("$NetBSD: getrpcport.c,v 1.17 2012/03/20 17:14:50 matt Exp $"); 39 #endif 40 #endif 41 42 /* 43 * Copyright (c) 1985 by Sun Microsystems, Inc. 44 */ 45 46 #include "namespace.h" 47 48 #include <sys/types.h> 49 #include <sys/socket.h> 50 51 #include <assert.h> 52 #include <netdb.h> 53 #include <stdio.h> 54 #include <string.h> 55 56 #include <rpc/rpc.h> 57 #include <rpc/pmap_clnt.h> 58 59 #ifdef __weak_alias 60 __weak_alias(getrpcport,_getrpcport) 61 #endif 62 63 int 64 getrpcport(char *host, int prognum, int versnum, int proto) 65 { 66 struct sockaddr_in addr; 67 struct hostent *hp; 68 69 _DIAGASSERT(host != NULL); 70 71 if ((hp = gethostbyname(host)) == NULL) 72 return (0); 73 memset(&addr, 0, sizeof(addr)); 74 addr.sin_len = sizeof(struct sockaddr_in); 75 addr.sin_family = AF_INET; 76 addr.sin_port = 0; 77 if (hp->h_length > addr.sin_len) 78 hp->h_length = addr.sin_len; 79 memcpy(&addr.sin_addr.s_addr, hp->h_addr, (size_t)hp->h_length); 80 /* Inconsistent interfaces need casts! :-( */ 81 return (pmap_getport(&addr, (u_long)prognum, (u_long)versnum, 82 (u_int)proto)); 83 } 84