How to properly use DetourRemove?

Question

I'm trying to hook the recv() function and that works perfectly. It's not shown here, but the hooked function prints what it recieves into the console.

Now, I'm trying to unhook the function on a keypress, but it obviously doesn't work since new recieved packets still get printed to the console so the function is probably still hooked. I've tried switching and changing stuff to make DetourRemove work but it just doesn't if anyone can help, I'd be thankful. The basic code is down below.

int(__stdcall *recv_orig)(SOCKET s, char *buf, int len, int flags);
int __stdcall recv_hook(SOCKET s, char *buf, int len, int flags)
{
    return recv_orig(s, buf, len, flags);
}

///DETOUR

recv_orig = (int(__stdcall *)(SOCKET s, char *buf, int len, int flags))DetourFunction(reinterpret_cast<BYTE*>(GetProcAddress(GetModuleHandleW(L"Ws2_32.dll"), "recv")), reinterpret_cast<BYTE*>(recv_hook));

///REMOVE

DetourRemove(reinterpret_cast<BYTE*>(GetProcAddress(GetModuleHandleW(L"Ws2_32.dll"), "recv")), reinterpret_cast<BYTE*>(recv_hook));

Have you tried it with `recv_orig` as the first argument to `DetourRemove`? — 500 - Internal Server Error, Aug 22 '17 at 22:14
Ok so after I try this all of the integers convert into hexadecimal what the hell is going on here, this makes no sense to me — SoLux, Aug 23 '17 at 10:14
I think you are going to have to elaborate. I have no idea what you mean :) — 500 - Internal Server Error, Aug 23 '17 at 11:22
ok I fixed it, I'll post a response down below. I was passing the wrong arguments! — SoLux, Aug 23 '17 at 16:06

score 0 · Answer 1 · answered Aug 23 '17 at 16:06

0

Fixed it. I was passing the wrong arguments:

DetourRemove(reinterpret_cast<BYTE*>(recv_orig), reinterpret_cast<BYTE*>(recv_hook)

answered Aug 23 '17 at 16:06

SoLux

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How to properly use DetourRemove?

1 Answers1