extensions.c File Reference

#include "precomp.h"
#include <winsock2.h>
#include <mswsock.h>

Include dependency graph for extensions.c:

Go to the source code of this file.

Functions
BOOL WINAPI	TransmitFile (SOCKET Socket, HANDLE File, DWORD NumberOfBytesToWrite, DWORD NumberOfBytesPerSend, LPOVERLAPPED Overlapped, LPTRANSMIT_FILE_BUFFERS TransmitBuffers, DWORD Flags)
BOOL WINAPI	AcceptEx (SOCKET ListenSocket, SOCKET AcceptSocket, PVOID OutputBuffer, DWORD ReceiveDataLength, DWORD LocalAddressLength, DWORD RemoteAddressLength, LPDWORD BytesReceived, LPOVERLAPPED Overlapped)
VOID WINAPI	GetAcceptExSockaddrs (PVOID OutputBuffer, DWORD ReceiveDataLength, DWORD LocalAddressLength, DWORD RemoteAddressLength, LPSOCKADDR *LocalSockaddr, LPINT LocalSockaddrLength, LPSOCKADDR *RemoteSockaddr, LPINT RemoteSockaddrLength)

Variables
LPFN_TRANSMITFILE	pfnTransmitFile = NULL
LPFN_GETACCEPTEXSOCKADDRS	pfnGetAcceptExSockaddrs = NULL
LPFN_ACCEPTEX	pfnAcceptEx = NULL

Function Documentation

AcceptEx()

BOOL WINAPI AcceptEx	(	SOCKET	ListenSocket,
		SOCKET	AcceptSocket,
		PVOID	OutputBuffer,
		DWORD	ReceiveDataLength,
		DWORD	LocalAddressLength,
		DWORD	RemoteAddressLength,
		LPDWORD	BytesReceived,
		LPOVERLAPPED	Overlapped
	)

Definition at line 61 of file extensions.c.

{
    GUID AcceptExGUID = WSAID_ACCEPTEX;
    GUID GetAcceptExSockaddrsGUID = WSAID_GETACCEPTEXSOCKADDRS;
    DWORD cbBytesReturned;
 
    if (WSAIoctl(ListenSocket,
                 SIO_GET_EXTENSION_FUNCTION_POINTER,
                 &AcceptExGUID,
                 sizeof(AcceptExGUID),
                 &pfnAcceptEx,
                 sizeof(pfnAcceptEx),
                 &cbBytesReturned,
                 NULL,
                 NULL) == SOCKET_ERROR)
    {
        return FALSE;
    }
 
    if (WSAIoctl(ListenSocket,
                 SIO_GET_EXTENSION_FUNCTION_POINTER,
                 &GetAcceptExSockaddrsGUID,
                 sizeof(GetAcceptExSockaddrsGUID),
                 &pfnGetAcceptExSockaddrs,
                 sizeof(pfnGetAcceptExSockaddrs),
                 &cbBytesReturned,
                 NULL,
                 NULL) == SOCKET_ERROR)
    {
        pfnAcceptEx = NULL;
        return FALSE;
    }
 
    return pfnAcceptEx(ListenSocket,
                       AcceptSocket,
                       OutputBuffer,
                       ReceiveDataLength,
                       LocalAddressLength,
                       RemoteAddressLength,
                       BytesReceived,
                       Overlapped);
}

GetAcceptExSockaddrs()

VOID WINAPI GetAcceptExSockaddrs	(	PVOID	OutputBuffer,
		DWORD	ReceiveDataLength,
		DWORD	LocalAddressLength,
		DWORD	RemoteAddressLength,
		LPSOCKADDR *	LocalSockaddr,
		LPINT	LocalSockaddrLength,
		LPSOCKADDR *	RemoteSockaddr,
		LPINT	RemoteSockaddrLength
	)

Definition at line 117 of file extensions.c.

{
    if (pfnGetAcceptExSockaddrs)
    {
        pfnGetAcceptExSockaddrs(OutputBuffer,
                                ReceiveDataLength,
                                LocalAddressLength,
                                RemoteAddressLength,
                                LocalSockaddr,
                                LocalSockaddrLength,
                                RemoteSockaddr,
                                RemoteSockaddrLength);
    }
}

TransmitFile()

BOOL WINAPI TransmitFile	(	SOCKET	Socket,
		HANDLE	File,
		DWORD	NumberOfBytesToWrite,
		DWORD	NumberOfBytesPerSend,
		LPOVERLAPPED	Overlapped,
		LPTRANSMIT_FILE_BUFFERS	TransmitBuffers,
		DWORD	Flags
	)

Definition at line 23 of file extensions.c.

{
    GUID TransmitFileGUID = WSAID_TRANSMITFILE;
    DWORD cbBytesReturned;
 
    if (WSAIoctl(Socket,
                 SIO_GET_EXTENSION_FUNCTION_POINTER,
                 &TransmitFileGUID,
                 sizeof(TransmitFileGUID),
                 &pfnTransmitFile,
                 sizeof(pfnTransmitFile),
                 &cbBytesReturned,
                 NULL,
                 NULL) == SOCKET_ERROR)
    {
        return FALSE;
    }
 
    return pfnTransmitFile(Socket,
                           File,
                           NumberOfBytesToWrite,
                           NumberOfBytesPerSend,
                           Overlapped,
                           TransmitBuffers,
                           Flags);
}

Variable Documentation

pfnAcceptEx

LPFN_ACCEPTEX pfnAcceptEx = NULL

Definition at line 17 of file extensions.c.

Referenced by AcceptEx().

pfnGetAcceptExSockaddrs

LPFN_GETACCEPTEXSOCKADDRS pfnGetAcceptExSockaddrs = NULL

Definition at line 16 of file extensions.c.

Referenced by AcceptEx(), and GetAcceptExSockaddrs().

pfnTransmitFile

LPFN_TRANSMITFILE pfnTransmitFile = NULL

Definition at line 15 of file extensions.c.

Referenced by TransmitFile().