base/applications/network/telnet/src/tnetwork.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 //Telnet Win32 : an ANSI telnet client.
   3 //Copyright (C) 1998-2000 Paul Brannan
   4 //Copyright (C) 1998 I.Ioannou
   5 //Copyright (C) 1997 Brad Johnson
   6 //
   7 //This program is free software; you can redistribute it and/or
   8 //modify it under the terms of the GNU General Public License
   9 //as published by the Free Software Foundation; either version 2
  10 //of the License, or (at your option) any later version.
  11 //
  12 //This program is distributed in the hope that it will be useful,
  13 //but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 //MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 //GNU General Public License for more details.
  16 //
  17 //You should have received a copy of the GNU General Public License
  18 //along with this program; if not, write to the Free Software
  19 //Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20 //
  21 //I.Ioannou
  22 //roryt@hol.gr
  23 //
  24 ///////////////////////////////////////////////////////////////////////////
  25
  26 ///////////////////////////////////////////////////////////////////////////////
  27 //
  28 // Module:              tnetwork.cpp
  29 //
  30 // Contents:    telnet network module
  31 //
  32 // Product:             telnet
  33 //
  34 // Revisions:   March 18, 1999          Paul Brannan (pbranna@clemson.edu)
  35 //
  36 ///////////////////////////////////////////////////////////////////////////////
  37
  38 #include "tnetwork.h"
  39
  40 void TNetwork::SetSocket(SOCKET s) {
  41         socket = s;
  42         net_type = TN_NETSOCKET;
  43         local_echo = line_mode = 1;
  44 }
  45
  46 void TNetwork::SetPipe(HANDLE pIn, HANDLE pOut) {
  47         pipeIn = pIn;
  48         pipeOut = pOut;
  49         net_type = TN_NETPIPE;
  50         local_echo = line_mode = 0;
  51 }
  52
  53 int TNetwork::WriteString(const char *str, const int length) {
  54         switch(net_type) {
  55         case TN_NETSOCKET:
  56                 return send(socket, str, length, 0);
  57         case TN_NETPIPE:
  58                 {
  59                         DWORD dwWritten;
  60                         if(!WriteFile(pipeOut, str, length, &dwWritten, (LPOVERLAPPED)NULL)) return -1;
  61                         return dwWritten;
  62                 }
  63         }
  64         return 0;
  65 }
  66
  67 int TNetwork::ReadString (char *str, const int length) {
  68         switch(net_type) {
  69         case TN_NETSOCKET:
  70                 return recv(socket, str, length, 0);
  71         case TN_NETPIPE:
  72                 {
  73                         DWORD dwRead;
  74                         if(!ReadFile(pipeIn, str, length, &dwRead, (LPOVERLAPPED)NULL)) return -1;
  75                         return dwRead;
  76                 }
  77         }
  78         return 0;
  79 }
  80
  81 void TNetwork::do_naws(int width, int height) {
  82         if(!naws_func) return;
  83         char buf[100];
  84         int len = (*naws_func)(buf, width, height);
  85         WriteString(buf, len);
  86 }
  87
  88 void TNetwork::SetLocalAddress(char *buf) {
  89         local_address = new char[strlen(buf) + 1];
  90         strcpy(local_address, buf);
  91 }
  92