/* ==================================================================== * The Vovida Software License, Version 1.0  *  * Copyright (c) 2000 Vovida Networks, Inc.  All rights reserved. *  * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: *  * 1. Redistributions of source code must retain the above copyright *    notice, this list of conditions and the following disclaimer. *  * 2. Redistributions in binary form must reproduce the above copyright *    notice, this list of conditions and the following disclaimer in *    the documentation and/or other materials provided with the *    distribution. *  * 3. The names "VOCAL", "Vovida Open Communication Application Library", *    and "Vovida Open Communication Application Library (VOCAL)" must *    not be used to endorse or promote products derived from this *    software without prior written permission. For written *    permission, please contact vocal@vovida.org. * * 4. Products derived from this software may not be called "VOCAL", nor *    may "VOCAL" appear in their name, without prior written *    permission of Vovida Networks, Inc. *  * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESSED OR IMPLIED * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE AND * NON-INFRINGEMENT ARE DISCLAIMED.  IN NO EVENT SHALL VOVIDA * NETWORKS, INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT DAMAGES * IN EXCESS OF $1,000, NOR FOR ANY INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH * DAMAGE. *  * ==================================================================== *  * This software consists of voluntary contributions made by Vovida * Networks, Inc. and many individuals on behalf of Vovida Networks, * Inc.  For more information on Vovida Networks, Inc., please see * <http://www.vovida.org/>. * */#include <iostream.h>#include <netinet/in.h>#include <sys/socket.h>#include <netdb.h>#include <string.h>int main (int argc, char* argv[]){    int socketFD;    struct sockaddr_in localAddr;     struct sockaddr_in remoteAddr;     int res1;    socketFD = socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP);    memset((char*) &(localAddr),0, sizeof(localAddr));    localAddr.sin_family = AF_INET;    localAddr.sin_addr.s_addr = htonl(INADDR_ANY);    localAddr.sin_port = htons(10110);    res1 = bind( socketFD, (struct sockaddr*) &(localAddr), sizeof(localAddr));    memset((char*) &(remoteAddr),0, sizeof(remoteAddr));    remoteAddr.sin_family = AF_INET;    remoteAddr.sin_addr.s_addr = htonl(INADDR_ANY);    struct hostent* host = gethostbyname (argv[1]);    memcpy((char*)&(remoteAddr).sin_addr.s_addr,           host->h_addr_list[0], // take the first entry            host->h_length);    remoteAddr.sin_port = htons(10100);    sendto( socketFD, "hello!", 7, 0,            (struct sockaddr*)&remoteAddr, sizeof(sockaddr_in));    return 0;}