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examples/tcp/tcp6echo.cpp 3.29 KB
48b4c725   Peter M. Groen   Setting up Socket-pp
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  // tcpecho.cpp
  //
  // Simple TCP echo client
  //
  // --------------------------------------------------------------------------
  // This file is part of the "sockpp" C++ socket library.
  //
  // Copyright (c) 2014-2017 Frank Pagliughi
  // 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. Neither the name of the copyright holder nor the names of its
  // contributors may be used to endorse or promote products derived from this
  // software without specific prior written permission.
  //
  // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
  // IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
  // THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  // PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
  // CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 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.
  // --------------------------------------------------------------------------
  
  #include <iostream>
  #include <string>
  #include "sockpp/tcp6_connector.h"
  #include "sockpp/version.h"
  
  using namespace std;
  using namespace std::chrono;
  
  // --------------------------------------------------------------------------
  
  int main(int argc, char* argv[])
  {
  	cout << "Sample IPv6 TCP echo client for 'sockpp' "
  		<< sockpp::SOCKPP_VERSION << '\n' << endl;
  
  	std::string host = (argc > 1) ? argv[1] : "::1";
  	in_port_t port = (argc > 2) ? atoi(argv[2]) : 12345;
  
  	sockpp::socket_initializer sockInit;
  
  	// Implicitly creates an inet6_address from {host,port}
  	// and then tries the connection.
  
  	sockpp::tcp6_connector conn({host, port});
  	if (!conn) {
  		cerr << "Error connecting to server at "
  			<< sockpp::inet6_address(host, port)
  			<< "\n\t" << conn.last_error_str() << endl;
  		return 1;
  	}
  
  	cout << "Created a connection from " << conn.address() << endl;
  
      // Set a timeout for the responses
      if (!conn.read_timeout(seconds(5))) {
          cerr << "Error setting timeout on TCP stream: "
                  << conn.last_error_str() << endl;
      }
  
  	string s, sret;
  	while (getline(cin, s) && !s.empty()) {
  		if (conn.write(s) != ssize_t(s.length())) {
  			cerr << "Error writing to the TCP stream: "
  				<< conn.last_error_str() << endl;
  			break;
  		}
  
  		sret.resize(s.length());
  		ssize_t n = conn.read_n(&sret[0], s.length());
  
  		if (n != ssize_t(s.length())) {
  			cerr << "Error reading from TCP stream: "
  				<< conn.last_error_str() << endl;
  			break;
  		}
  
  		cout << sret << endl;
  	}
  
  	return (!conn) ? 1 : 0;
  }