syReplaceFuncRel

Signature

virtual void syReplaceFuncRel(const u32 offset, const void* replacement, void** original, int moduleId);

Parameters

Parameter	Type	Description
address	u32	The address to hook
replacement	void*	Pointer to hook code to inject
original	void**	Pointer to a function pointer that will get set to the original unhooked function
moduleId	int	The ID of the rel to inject into

Description

Relative Hooking version of syReplaceFunc

Example Usage

int (*originalFunc)(void);
int myFunc() {
    OSReport("Hello World\n");
    return originalFunc();
}

void Init(CoreAPI* api) {
    // NOTE: Execution does not return to hook location.
    // Inject our hook at offset 0x1DFC in the rel that's ID is 0x1b
    api->syReplaceFunc(0x1DFC, 
                       reinterpret_cast<void*>(myFunc), 
                       reinterpret_cast<void**>(originalFunc),
                       0x1b);
}