lib/libc/rpc/getrpcport.c

   1 /*
   2  * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
   3  * unrestricted use provided that this legend is included on all tape
   4  * media and as a part of the software program in whole or part.  Users
   5  * may copy or modify Sun RPC without charge, but are not authorized
   6  * to license or distribute it to anyone else except as part of a product or
   7  * program developed by the user.
   8  *
   9  * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
  10  * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
  11  * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
  12  *
  13  * Sun RPC is provided with no support and without any obligation on the
  14  * part of Sun Microsystems, Inc. to assist in its use, correction,
  15  * modification or enhancement.
  16  *
  17  * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
  18  * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
  19  * OR ANY PART THEREOF.
  20  *
  21  * In no event will Sun Microsystems, Inc. be liable for any lost revenue
  22  * or profits or other special, indirect and consequential damages, even if
  23  * Sun has been advised of the possibility of such damages.
  24  *
  25  * Sun Microsystems, Inc.
  26  * 2550 Garcia Avenue
  27  * Mountain View, California  94043
  28  *
  29  * @(#)getrpcport.c 1.3 87/08/11 SMI
  30  * @(#)getrpcport.c     2.1 88/07/29 4.0 RPCSRC
  31  * $FreeBSD: src/lib/libc/rpc/getrpcport.c,v 1.10 1999/08/28 00:00:40 peter 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 <stdio.h>
  40 #include <string.h>
  41 #include <rpc/rpc.h>
  42 #include <rpc/pmap_clnt.h>
  43 #include <netdb.h>
  44 #include <sys/socket.h>
  45
  46 int
  47 getrpcport(char *host, int prognum, int versnum, int proto)
  48 {
  49         struct sockaddr_in addr;
  50         struct hostent *hp;
  51
  52         if ((hp = gethostbyname(host)) == NULL)
  53                 return (0);
  54         memset(&addr, 0, sizeof(addr));
  55         addr.sin_len = sizeof(struct sockaddr_in);
  56         addr.sin_family = AF_INET;
  57         addr.sin_port =  0;
  58         memcpy((char *)&addr.sin_addr, hp->h_addr, hp->h_length);
  59         return (pmap_getport(&addr, prognum, versnum, proto));
  60 }