Dll missing entry point timeGetTime

Question

Trying to compile this DLL in MingGWx64, using the following command

gcc -shared -o evil.dll evil.cpp -DWIN32_LEAN_AND_MEAN

Through trial and error I moved the "int fireMyLaser ()" below the declaration, from the bottom of the code sample I found. But I still get an error on the load of the EXE that it can't find the entry-point timeGetTime. Anyone have any ideas?

#include <windows.h>
#define DllExport __declspec (dllexport)

int fireMyLaser()
{
 WinExec("calc", 0);
 return 0;
}

DllExport void timeGetTime() { fireMyLaser(); }

BOOL WINAPI DllMain(HINSTANCE hinstDLL,DWORD fdwReason, LPVOID lpvReserved)
{
    fireMyLaser();
    return 0;
}`

Compiling the DLL works, on loading the EXE I get "The procedure entry point timeGetTime could not be located in the dynamic link library"

Please show the code that yields the error, and the scenario that you used as well. — CristiFati, Mar 27 '18 at 10:24
Could you add the exe code as well? and how do you build it? — CristiFati, Apr 20 '18 at 12:44

score 0 · Accepted Answer · answered Apr 21 '18 at 01:39

I don't have access to the exe code, but through trial and error the below worked.

// includes adjusted here to allow for timeGetTime to be used as an entry point
#include <windef.h>
#include <stdio.h>
#include <WinBase.h>
//entrypoint timeGetTime below for exe to hit... repeatedly
extern "C" __declspec(dllexport) int timeGetTime() {
 WinExec("calc.exe", 0);
 return 0;
}

BOOL WINAPI DllMain(HINSTANCE hinstDLL,DWORD fdwReason, LPVOID lpvReserved)
{
 timeGetTime();
 return TRUE;
}

Dll missing entry point timeGetTime

1 Answers1