#ifndef __DYLD_POINTER_AUTH_H__
#define __DYLD_POINTER_AUTH_H__
#include <ptrauth.h>
#if __has_feature(ptrauth_calls)
#define __ptrauth_dyld_address_auth __ptrauth(ptrauth_key_process_dependent_data, 1, 0)
#define __ptrauth_dyld_function_ptr __ptrauth(ptrauth_key_process_dependent_code, 1, 0)
#else
#define __ptrauth_dyld_address_auth
#define __ptrauth_dyld_function_ptr
#endif
namespace dyld3 {
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wptrauth-null-pointers"
template<typename T>
struct AuthenticatedValue {
static_assert(sizeof(T) <= sizeof(uintptr_t));
AuthenticatedValue() {
this->value = ptrauth_sign_unauthenticated(nullptr, ptrauth_key_process_dependent_data, this);
}
~AuthenticatedValue() = default;
AuthenticatedValue(const AuthenticatedValue& other) {
this->value = ptrauth_auth_and_resign(other.value,
ptrauth_key_process_dependent_data, &other,
ptrauth_key_process_dependent_data, this);
}
AuthenticatedValue(AuthenticatedValue&& other) {
this->value = ptrauth_auth_and_resign(other.value,
ptrauth_key_process_dependent_data, &other,
ptrauth_key_process_dependent_data, this);
other.value = ptrauth_sign_unauthenticated(nullptr, ptrauth_key_process_dependent_data, &other);
}
AuthenticatedValue& operator=(const AuthenticatedValue&) = delete;
AuthenticatedValue& operator=(AuthenticatedValue&&) = delete;
AuthenticatedValue& operator=(const T& other) {
this->value = ptrauth_sign_unauthenticated(other, ptrauth_key_process_dependent_data, this);
return *this;
}
bool operator==(const T& other) const {
return ptrauth_auth_data(this->value, ptrauth_key_process_dependent_data, this) == other;
}
bool operator!=(const T& other) const {
return ptrauth_auth_data(this->value, ptrauth_key_process_dependent_data, this) != other;
}
private:
const void* value;
};
#pragma clang diagnostic pop
}
#endif // __DYLD_POINTER_AUTH_H__