test_send.cxx

RTP协议

/* ====================================================================
 * 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 [e-mail].
 *
 * 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,
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 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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 * 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;
}