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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
#include "mozilla/Assertions.h"
#include "mozilla/DynamicallyLinkedFunctionPtr.h"
#include "nsWindowsDllInterceptor.h"
#include "nsWindowsHelpers.h"
#include <shlwapi.h>
static int NormalImport() { return ::GetSystemMetrics(SM_CYCAPTION); }
static bool DelayLoadImport() {
return !!::UrlIsW(L"http://example.com/", URLIS_FILEURL);
}
static mozilla::WindowsIATPatcher::FuncHookType<decltype(&::GetSystemMetrics)>
gGetSystemMetricsHook;
static mozilla::WindowsIATPatcher::FuncHookType<decltype(&::MessageBoxA)>
gMessageBoxAHook;
static mozilla::WindowsIATPatcher::FuncHookType<decltype(&::UrlIsW)> gUrlIsHook;
static bool gGetSystemMetricsHookCalled = false;
static int WINAPI GetSystemMetricsHook(int aIndex) {
MOZ_DIAGNOSTIC_ASSERT(aIndex == SM_CYCAPTION);
gGetSystemMetricsHookCalled = true;
return 0;
}
static bool gUrlIsHookCalled = false;
static BOOL WINAPI UrlIsWHook(PCWSTR aUrl, URLIS aFlags) {
gUrlIsHookCalled = true;
return TRUE;
}
static HMODULE GetStrongReferenceToExeModule() {
HMODULE result;
if (!::GetModuleHandleExW(0, nullptr, &result)) {
return nullptr;
}
return result;
}
#define PRINT_FAIL(msg) printf("TEST-UNEXPECTED-FAIL | IATPatcher | " msg "\n")
extern "C" int wmain(int argc, wchar_t* argv[]) {
nsModuleHandle ourModule1(GetStrongReferenceToExeModule());
if (!ourModule1) {
PRINT_FAIL("Failed obtaining HMODULE for executable");
return 1;
}
if (!gGetSystemMetricsHook.Set(ourModule1, "user32.dll", "GetSystemMetrics",
&GetSystemMetricsHook)) {
PRINT_FAIL("Failed setting GetSystemMetrics hook");
return 1;
}
if (NormalImport() || !gGetSystemMetricsHookCalled) {
PRINT_FAIL("GetSystemMetrics hook was not called");
return 1;
}
static const mozilla::StaticDynamicallyLinkedFunctionPtr<
decltype(&::GetSystemMetrics)>
pRealGetSystemMetrics(L"user32.dll", "GetSystemMetrics");
if (!pRealGetSystemMetrics) {
PRINT_FAIL("Failed resolving real GetSystemMetrics pointer");
return 1;
}
if (gGetSystemMetricsHook.GetStub() != pRealGetSystemMetrics) {
PRINT_FAIL(
"GetSystemMetrics hook stub pointer does not match real "
"GetSystemMetrics pointer");
return 1;
}
nsModuleHandle ourModule2(GetStrongReferenceToExeModule());
if (!ourModule2) {
PRINT_FAIL("Failed obtaining HMODULE for executable");
return 1;
}
// This should fail becuase the test never calls, and thus never imports,
// MessageBoxA
if (gMessageBoxAHook.Set(ourModule2, "user32.dll", "MessageBoxA", nullptr)) {
PRINT_FAIL("Setting MessageBoxA hook succeeded when it should have failed");
return 1;
}
nsModuleHandle ourModule3(GetStrongReferenceToExeModule());
if (!ourModule3) {
PRINT_FAIL("Failed obtaining HMODULE for executable");
return 1;
}
// These tests involve a delay-loaded import, which are not supported; we
// expect these tests to FAIL.
if (gUrlIsHook.Set(ourModule3, "shlwapi.dll", "UrlIsW", &UrlIsWHook)) {
PRINT_FAIL("gUrlIsHook.Set should have failed");
return 1;
}
if (DelayLoadImport() || gUrlIsHookCalled) {
PRINT_FAIL("gUrlIsHook should not have been called");
return 1;
}
printf("TEST-PASS | IATPatcher | All tests passed.\n");
return 0;
}
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