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/*
* Copyright (C) 2003 Tommi Maekitalo
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* As a special exception, you may use this file as part of a free
* software library without restriction. Specifically, if other files
* instantiate templates or use macros or inline functions from this
* file, or you compile this file and link it with other files to
* produce an executable, this file does not by itself cause the
* resulting executable to be covered by the GNU General Public
* License. This exception does not however invalidate any other
* reasons why the executable file might be covered by the GNU Library
* General Public License.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <cxxtools/net/udp.h>
#include <cxxtools/arg.h>
#include <cxxtools/log.h>
#include <vector>
#include <iostream>
void usage(const char* progname)
{
std::cerr << "usage: " << progname << " [-h host] [-p port] [-e] {message}\n"
" " << progname << " -l [-h host] [-p port] [-s size] [-c] [-e] [-n]\n"
"options:\n"
" -l receiver-mode\n"
" -h host hostname (default localhost in sender, any in receiver)\n"
" -p port udp-port to use\n"
" -s size size of receive-buffer in bytes (default 1024)\n"
" -c continuous-mode - don't stop after receiving message\n"
" -e echo message back or receive echo-reply\n"
" -n don't output newline\n"
" -b enable broadcast"
<< std::endl;
}
int main(int argc, char* argv[])
{
try
{
cxxtools::Arg<bool> help(argc, argv, '?');
if (help)
{
usage(argv[0]);
return 0;
}
cxxtools::Arg<bool> receive(argc, argv, 'l');
cxxtools::Arg<unsigned short> port(argc, argv, 'p', 1234);
cxxtools::Arg<bool> echo(argc, argv, 'e');
cxxtools::Arg<bool> nonewline(argc, argv, 'n');
cxxtools::Arg<int> timeout(argc, argv, 't', 0);
log_init();
if (receive)
{
cxxtools::Arg<unsigned> size(argc, argv, 's', 1024);
cxxtools::Arg<std::string> host(argc, argv, 'h');
cxxtools::Arg<bool> continuous(argc, argv, 'c');
if (argc > 1)
{
usage(argv[0]);
return -1;
}
cxxtools::net::UdpReceiver receiver(host, port);
if (timeout.isSet())
receiver.setTimeout(timeout);
std::vector<char> buffer(size);
std::cout << "waiting for messages on port " << port << std::endl;
do
{
cxxtools::net::UdpReceiver::size_type s = receiver.recv(&buffer[0], size);
std::string msg(&buffer[0], s);
std::cout << msg;
if (!nonewline)
std::cout << std::endl;
else
std::cout.flush();
if (echo)
receiver.send(msg);
} while (continuous);
}
else
{
cxxtools::Arg<std::string> host(argc, argv, 'h');
cxxtools::Arg<bool> broadcast(argc, argv, 'b');
if (argc <= 1)
{
usage(argv[0]);
return -1;
}
cxxtools::net::UdpSender sender(host, port, broadcast);
if (timeout.isSet())
sender.setTimeout(timeout);
for (int a = 1; a < argc; ++a)
{
std::string msg = argv[a];
std::cout << "send message \"" << msg << "\" to " << host << ':' << port << std::endl;
cxxtools::net::UdpSender::size_type n = sender.send(msg);
std::cout << n << " bytes sent " << msg.size() << " bytes queued" << std::endl;
if (echo)
{
std::string reply = sender.recv(msg.size());
std::cout << "reply: " << reply;
if (!nonewline)
std::cout << std::endl;
else
std::cout.flush();
}
}
}
}
catch (const std::exception& e)
{
std::cerr << e.what() << std::endl;
}
}
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