/******************************************************************************
 *                                                                            *
 *   Klasse Socket                                                            *
 *                                                                            *
 *   Klasse zur Datenübertragung über die Socket Schnittstelle,               *
 *                                                                            *
 *   (c) 2006 Michael Zimmer, HTS                                             *
 *                                                                            *
 *   Borland C++Builder 4.0                                                   *
 *                                                                            *
 ****V1.0**********************************************************************/

//---------------------------------------------------------------------------
#include "Socket.h"
//---------------------------------------------------------------------------

Socket::Socket(string host, int port)
{
  this->port = port;
  this->host = host;
  // WinSock-DLL einbinden
  WSADATA m_wsa;
  WSAStartup(MAKEWORD(2,0), &m_wsa);
  // Socket erzeugen
  this->socket = ::socket(AF_INET, SOCK_STREAM, 0);
}

Socket::Socket(SOCKET socket)
{
   this->socket = socket;
}

bool Socket::connect()
{
  SOCKADDR_IN addr;
  memset( &addr, 0, sizeof( SOCKADDR_IN ));

  addr.sin_family = AF_INET;
  addr.sin_port = htons((short)this->port);
  addr.sin_addr.s_addr = inet_addr(this->host.c_str());

  // Verbindung herstellen
  int rc = ::connect(socket, (SOCKADDR*) &addr, sizeof( SOCKADDR ));

  return rc != SOCKET_ERROR;
}

int Socket::dataAvailable()
{
  const int len = 1024;
  char b[len];
  return recv(socket, b, len, MSG_PEEK);
}

void Socket::write(int b)
{
  char tmp[1];
  tmp[0] = (char)b;
  send(socket, tmp, 1, 0);
}

void Socket::write(const char*b, int len)
{
  send(socket, b, len, 0);
}

void Socket::write(string s)
{
  send(socket, s.c_str(), (int)s.length(), 0);
}

int Socket::read()
{
  char tmp[1];
  recv(socket, tmp, 1, 0);
  return tmp[0];
}

int Socket::read(char* b, int len)
{
  return recv(socket, b, len, 0);
}

string Socket::readLine()
{
  char buffIn[256];
  int pos = -1;
  do {
    pos++;
    recv(socket, buffIn+pos, 1, 0);
  } while (buffIn[pos] != '\n');
  buffIn[pos] = '\0';  // echo-String ist mit '\n' abgechlossen
  return string(buffIn);
}

void Socket::close()
{
  closesocket(socket);
}