open_source / socket-cpp

  #include <iostream>
  #include <string>

  #include "socket-cpp/unix_dgram_socket.h"

  
  using namespace std;
  
  // --------------------------------------------------------------------------
  
  int main(int argc, char* argv[])
  {

  	osdev::components::socket-cpp::socket_initializer sockInit;

  
  	string	cliAddr { "/tmp/undgramecho.sock" },
  			svrAddr { "/tmp/undgramechosvr.sock" };
  

  	osdev::components::socket-cpp::unix_dgram_socket sock;

  
  	// A Unix-domain UDP client needs to bind to its own address
  	// before it can send or receive packets
  

  	if (!sock.bind(osdev::components::socket-cpp::unix_address(cliAddr))) {

  		cerr << "Error connecting to client address at '" << cliAddr << "'"
  			<< "\n\t" << sock.last_error_str() << endl;
  		return 1;
  	}
  
  	// "Connect" to the server address. This is a convenience to set the
  	// default 'send_to' address, as there is no real connection.
  

  	if (!sock.connect(osdev::components::socket-cpp::unix_address(svrAddr))) {

  		cerr << "Error connecting to server at '" << svrAddr << "'"
  			<< "\n\t" << sock.last_error_str() << endl;
  		return 1;
  	}
  
  	cout << "Created UDP socket at: " << sock.address() << endl;
  
  	string s, sret;
  	while (getline(cin, s) && !s.empty()) {
  		if (sock.send(s) != ssize_t(s.length())) {
  			cerr << "Error writing to the UDP socket: "
  				<< sock.last_error_str() << endl;
  			break;
  		}
  
  		sret.resize(s.length());
  		ssize_t n = sock.recv(&sret[0], s.length());
  
  		if (n != ssize_t(s.length())) {
  			cerr << "Error reading from UDP socket: "
  				<< sock.last_error_str() << endl;
  			break;
  		}
  
  		cout << sret << endl;
  	}
  
  	return (!sock) ? 1 : 0;
  }