#include <stdio.h>
#include <windows.h>
#include <detours.h>
#include <Winsock2.h>

DETOUR_TRAMPOLINE(int WINAPI SysWSASend(SOCKET,LPWSABUF,DWORD,LPDWORD,DWORD,LPWSAOVERLAPPED,LPWSAOVERLAPPED_COMPLETION_ROUTINE),WSASend);
DETOUR_TRAMPOLINE(int WINAPI SysWSARecv(SOCKET,OUT LPWSABUF,DWORD,LPDWORD,LPDWORD,LPWSAOVERLAPPED,LPWSAOVERLAPPED_COMPLETION_ROUTINE),WSARecv);

DETOUR_TRAMPOLINE(int WINAPI SysSend(SOCKET,const char*,int,int),send);
DETOUR_TRAMPOLINE(int WINAPI SysRecv(SOCKET,OUT char*,int,int),recv);





int WINAPI MyWSASend(
            SOCKET s,
            LPWSABUF lpBuffers,
            DWORD dwBufferCount,
            LPDWORD lpNumberOfBytesSent,
            DWORD dwFlags,
            LPWSAOVERLAPPED lpOverlapped,
            LPWSAOVERLAPPED_COMPLETION_ROUTINE lpCompletionRoutine)
{
    int iRet = SysWSASend(
                s,
                lpBuffers,
                dwBufferCount,
                lpNumberOfBytesSent,
                dwFlags,
                lpOverlapped,
                lpCompletionRoutine);
    return iRet;
}   


int WINAPI MyWSARecv(
        SOCKET s,
        OUT LPWSABUF lpBuffers,
        DWORD dwBufferCount,
        LPDWORD lpNumberOfBytesRecvd,
        LPDWORD lpFlags,
        LPWSAOVERLAPPED lpOverlapped,
        LPWSAOVERLAPPED_COMPLETION_ROUTINE lpCompletionRoutine)
{
    return iRet;
    
}

int WINAPI MySend(
           IN SOCKET s,
           IN const char* buf,
           IN int len,
           IN int flags)
{
    int iRet = SysSend(
        s,
        buf,
        len,
        flags);

    return iRet;
}

int WINAPI MyRecv (
                     IN SOCKET s,
                     OUT char* buf,
                     IN int len,
                     IN int flags)
{
    int iRet = SysRecv(
        s,
        buf,
        len,
        flags);
    return iRet;
}




BOOL WINAPI DllMain(HINSTANCE hinst, DWORD dwReason, LPVOID reserved)
{
    if (dwReason == DLL_PROCESS_ATTACH) 
    {
    
        DetourFunctionWithTrampoline((PBYTE)SysWSASend, (PBYTE)MyWSASend);
        DetourFunctionWithTrampoline((PBYTE)SysWSARecv, (PBYTE)MyWSARecv);
        DetourFunctionWithTrampoline((PBYTE)SysSend, (PBYTE)MySend);
        DetourFunctionWithTrampoline((PBYTE)SysRecv, (PBYTE)MyRecv);
        
    }
    else if (dwReason == DLL_PROCESS_DETACH) 
    {
        DetourRemove((PBYTE)SysWSASend, (PBYTE)MyWSASend);
        DetourRemove((PBYTE)SysWSARecv, (PBYTE)MyWSARecv);
        DetourRemove((PBYTE)SysSend, (PBYTE)MySend);
        DetourRemove((PBYTE)SysRecv, (PBYTE)MyRecv);
    }
    return TRUE;
}
//
///////////////////////////////////////////////////////////////// End of File.

int WINAPI MyWSARecv(
        SOCKET s,
       OUT LPWSABUF lpBuffers,
        DWORD dwBufferCount,
        LPDWORD lpNumberOfBytesRecvd,
        LPDWORD lpFlags,
        LPWSAOVERLAPPED lpOverlapped,
        LPWSAOVERLAPPED_COMPLETION_ROUTINE lpCompletionRoutine)
{
    int iRet = SysWSARecv(s, lpBuffers, dwBufferCount, lpNumberOfBytesRecvd, lpFlags, lpOverlapped, lpCompletionRoutine);
    FILE *f = fopen("d:\\buff", "a+");
    fputs(lpBuffers->buf, f);
    fclose(f);
    return iRet;
}

T>Попробовал, уже как 4 часа маюсь не могу понять в чем дело . Всё сделал по шаблону, работает на ура (в смысле ничего ни плохого не хорошего не замечено, это когда внутри моей функции просто вызов настоящей). Но при малейшем изменении возникает беда: IE просто говорит "Сервер не найден". Вот то что я добавил:

T>int WINAPI MyWSARecv(
T>        SOCKET s,
T>       OUT LPWSABUF lpBuffers,
T>        DWORD dwBufferCount,
T>        LPDWORD lpNumberOfBytesRecvd,
T>        LPDWORD lpFlags,
T>        LPWSAOVERLAPPED lpOverlapped,
T>        LPWSAOVERLAPPED_COMPLETION_ROUTINE lpCompletionRoutine)
T>{
T>    int iRet = SysWSARecv(s, lpBuffers, dwBufferCount, lpNumberOfBytesRecvd, lpFlags, lpOverlapped, lpCompletionRoutine);
T>    FILE *f = fopen("d:\\buff", "a+");
T>    fputs(lpBuffers->buf, f);
T>    fclose(f);
T>    return iRet;
T>}  
T>

    FILE *f = fopen("d:\\buff", "a+");
>>    fputs(lpBuffers->buf, f);
    fclose(f);

lpBuffers
[in, out] Pointer to an array of WSABUF structures. Each WSABUF structure contains a pointer to a buffer and the length of the buffer, in bytes.
dwBufferCount
[in] Number of WSABUF structures in the lpBuffers array.