C++ (Cpp) subhook_unprotect примеры использования

Пример #1

Файл: subhook_x86.c Проект: Merenge/samp-plugin-jit

SUBHOOK_EXPORT int SUBHOOK_API subhook_install(subhook_t hook) {
	intptr_t offset;

	if (hook->installed)
		return -EINVAL;

	if (!hook->unlocked) {
		subhook_unprotect(hook->src, sizeof(jmp_instr));
		hook->unlocked = 1;
	}

	memcpy(((struct subhook_x86 *)hook)->code, hook->src, sizeof(jmp_instr));
	memcpy(hook->src, &jmp_instr, sizeof(jmp_instr));

	offset = (intptr_t)hook->dst - ((intptr_t)hook->src + sizeof(jmp_instr));
	memcpy((void *)((intptr_t)hook->src + sizeof(jmp_opcode)), &offset,
	       sizeof(jmp_instr) - sizeof(jmp_opcode));

	hook->installed = 1;
	return 0;
}

Пример #2

Файл: subhook_x86.c Проект: AmesianX/samp-plugin-jit

SUBHOOK_EXPORT int SUBHOOK_API subhook_install(subhook_t hook) {
	void *src;
	void *dst;
	intptr_t offset;

	if (hook->installed)
		return -EINVAL;

	src = hook->src;
	dst = hook->dst;

	subhook_unprotect(src, sizeof(jmp_instr));
	memcpy(((struct subhook_x86 *)hook)->code, src, sizeof(jmp_instr));
	memcpy(src, &jmp_instr, sizeof(jmp_instr));

	offset = (intptr_t)dst - ((intptr_t)src + sizeof(jmp_instr));
	memcpy((void *)((intptr_t)src + sizeof(jmp_opcode)), &offset,
	       sizeof(jmp_instr) - sizeof(jmp_opcode));

	hook->installed = 1;
	return 0;
}