LInet::ServerInit

#include "ltwrappr.h"

virtual L_INT LInet::ServerInit(nPort)

L_INT nPort;

/* port on which to listen */

Sets up a port to act as a server to which other computers can connect.

Parameter	Description
nPort	Port number on which to listen for incoming connections. Some commonly used values include:
	Value	Meaning
	0x015	FTP
	0x050	Web server
	0x077	News
	0x019	Mail
	0x017	Telnet

Returns

SUCCESS	The function was successful.
< 1	An error occurred. Refer to Return Codes.

Comments

You must initialize the LEADTOOLS Internet DLL using LInet::StartUp before calling this function.

Required DLLs and Libraries

LTNET

For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application.

See Also

Functions:

LInet::Connect, LInet::Close, LInet::AcceptConnect, LInet::ServerShutdown, LInet::StartUp, LInet::ShutDown, Class Members

Example

// The user should derive a class from LInet to support the OnConnectRequest callback function
// suppose it was named as LUserInet
class LUserInetSI : public LInet
{
protected:
   virtual  L_INT OnConnectRequest(LInet *plConnection, L_INT nError);
};
L_INT LInet__ServerInitExample()
{
   L_INT       nRet;
   LUserInetSI UserInet;
   nRet = UserInet.StartUp();
   if(nRet != SUCCESS)
      return nRet;
   nRet = UserInet.ServerInit(1000);
   if(nRet != SUCCESS)
      return nRet;
   // other operations
   nRet = UserInet.ServerShutdown();
   if(nRet != SUCCESS)
      return nRet;
   nRet = UserInet.ShutDown();
   if(nRet != SUCCESS)
      return nRet;
   return SUCCESS;
}
L_INT LUserInetSI::OnConnectRequest(LInet *plConnection, L_INT nError)
{
   L_CHAR *pName;
   L_TCHAR szString[150] = TEXT("\0");
   L_INT nRet = SUCCESS;
   if (nError != SUCCESS)
      return nError;
   // retrieve the remote computer name
   if ((pName = plConnection->GetHostName(HOST_NAME_IP)) == NULL)
      return FAILURE;
   wsprintf(szString, TEXT("Some one requires connecting to you, his TCP/IP:  %s, accept him ?"), pName);
   if (IDYES == MessageBox(NULL, szString, TEXT(""), MB_YESNO))
   {
       if ((nRet = AcceptConnect(plConnection)) != SUCCESS)
           return nRet;
    
       MessageBox(NULL, TEXT("Remote computer accepted."), TEXT(""), MB_OK);
   }
   // other operations
   // close the connection
   Close(plConnection);
   
   return nRet;
}