test/ptyio.cc

   1 ///
   2 /// \file       ptyio.cc
   3 ///             Simple test program for pppob's -t pty option.
   4 ///
   5
   6 /*
   7     Copyright (C) 2012-2013, Net Direct Inc. (http://www.netdirect.ca/)
   8
   9     This program is free software; you can redistribute it and/or modify
  10     it under the terms of the GNU General Public License as published by
  11     the Free Software Foundation; either version 2 of the License, or
  12     (at your option) any later version.
  13
  14     This program is distributed in the hope that it will be useful,
  15     but WITHOUT ANY WARRANTY; without even the implied warranty of
  16     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  17
  18     See the GNU General Public License in the COPYING file at the
  19     root directory of this project for more details.
  20 */
  21
  22 #include <iostream>
  23 #include <sys/types.h>
  24 #include <sys/stat.h>
  25 #include <fcntl.h>
  26 #include <pthread.h>
  27 #include <termios.h>
  28 #include <unistd.h>
  29 #include <stdio.h>
  30
  31 using namespace std;
  32
  33 struct ioconfig
  34 {
  35         int read;
  36         int write;
  37 };
  38
  39 void* readwrite(void *arg)
  40 {
  41         struct ioconfig *io = (struct ioconfig *) arg;
  42         for (;;) {
  43                 char buffer[4096];
  44                 ssize_t count = read(io->read, buffer, sizeof(buffer));
  45                 write(1, "Got data: ", 10);
  46                 write(1, buffer, count);
  47                 write(io->write, buffer, count);
  48         }
  49         return 0;
  50 }
  51
  52 int main(int argc, char *argv[])
  53 {
  54         if( argc < 2 )
  55                 return 1;
  56
  57         int slave = open(argv[1], O_RDWR);
  58         if( slave == -1 )
  59                 return 2;
  60
  61         // set raw mode
  62         struct termios tp;
  63         tcgetattr(slave, &tp);
  64         cfmakeraw(&tp);
  65         tcsetattr(slave, TCSANOW, &tp);
  66
  67         struct ioconfig io1, io2;
  68         io1.read = 0;
  69         io1.write = slave;
  70         io2.read = slave;
  71         io2.write = 1;
  72
  73         pthread_t iot1, iot2;
  74         pthread_create(&iot1, NULL, &readwrite, &io1);
  75         pthread_create(&iot2, NULL, &readwrite, &io2);
  76
  77         pthread_join(iot1, NULL);
  78         pthread_join(iot2, NULL);
  79
  80         return 0;
  81 }
  82