HookFirmware.c

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#include                "libFireBird.h"
 
bool HookFirmware(char *FirmwareFunctionName, void *RedirectTo, void *PointerToOriginal)
{
  TRACEENTER();
 
  dword                *got;
  dword                 FirmwareFunction;
 
  if(!FirmwareFunctionName || !RedirectTo || !PointerToOriginal)
  {
    TRACEEXIT();
    return FALSE;
  }
 
  FirmwareFunction = TryResolve(FirmwareFunctionName);
  if(!FirmwareFunction)
  {
    TRACEEXIT();
    return FALSE;
  }
 
  got = FindGotPointer(FirmwareFunction);
  if(got)
  {
    *(dword*)PointerToOriginal = FirmwareFunction;
    *got = (dword)RedirectTo;
 
    TRACEEXIT();
    return TRUE;
  }
 
  TRACEEXIT();
  return FALSE;
}