irda-s.cpp

IRDA红外通信程序

#include <windows.h>
#include <af_irda.h>
#include <stdio.h>

void ErrOut()
{
  LPVOID lpMsgBuf;
  DWORD errCode=GetLastError();
  FormatMessage( 
    FORMAT_MESSAGE_ALLOCATE_BUFFER | 
    FORMAT_MESSAGE_FROM_SYSTEM | 
    FORMAT_MESSAGE_IGNORE_INSERTS,
    NULL,
    errCode,
    MAKELANGID(LANG_ENGLISH, SUBLANG_DEFAULT), // Default language
    (LPTSTR) &lpMsgBuf,
    0,
    NULL);
// Process any inserts in lpMsgBuf.
// ...
// Display the string.
//MessageBox( NULL, (LPCTSTR)lpMsgBuf, "Error", MB_OK | MB_ICONINFORMATION );
printf("%sError Code=%d\n",(LPTSTR)lpMsgBuf,errCode);

// Free the buffer.
LocalFree( lpMsgBuf );
}

int main()
{
  WSADATA wsaData;
  SOCKET ServerSock,              // IR socket bound to the server 
         ClientSock;              // IR socket bound to the client 

  SOCKADDR_IRDA address = {AF_IRDA, 0, 0, 0, 0, "IRServer"};
                                  // Specifies the server socket address
  int index = 0,                  // Integer index
      iReturn;                    // Return value of recv function
  char szServerA[100];            // ASCII string 
  
  WSAStartup(MAKEWORD(1,1),&wsaData);

  // Create a socket bound to the server.
  if ((ServerSock = socket (AF_IRDA, SOCK_STREAM, 0)) == INVALID_SOCKET) 
  {
    ErrOut();
    return FALSE;
  }

  // Associate the server socket address with the server socket.
  if (bind (ServerSock, (struct sockaddr *)&address, sizeof (address))
           == SOCKET_ERROR) 
  {
    ErrOut();
    closesocket (ServerSock);
    return FALSE;
  }

  // Establish a socket to listen for incoming connections.
  if (listen (ServerSock, 5) == SOCKET_ERROR) 
  {
    ErrOut();
    closesocket (ServerSock);
    return FALSE;
  }

  // Accept a connection on the socket.
  if ((ClientSock = accept (ServerSock, 0, 0)) == INVALID_SOCKET)
  {
    ErrOut();
    closesocket (ServerSock);
    return FALSE;
  }

  // Stop listening for connections from clients.
  closesocket (ServerSock);

  // Send a string from the server socket to the client socket.
  if (send (ClientSock, "To Client!", strlen ("To Client!") + 1, 0)
           == SOCKET_ERROR) 
  {
    ErrOut();
  }

  // Receive data from the client.
  iReturn = recv (ClientSock, szServerA, sizeof (szServerA), 0);

  // Check if there is any data received. If there is, display it.
  if (iReturn == SOCKET_ERROR)
  {
    ErrOut();
  }
  else if (iReturn == 0)
  {
    printf("Finished receiving data\n");
  }
  else
  {
    printf("Received From Client:%s\n",szServerA);
  }
 
  // Close the client and server sockets.
  closesocket (ClientSock);
  WSACleanup();

  return 0;
}