modules/rostests/apitests/appshim/layer_hooks.c

   1 /*
   2  * PROJECT:     appshim_apitest
   3  * LICENSE:     GPL-2.0+ (https://spdx.org/licenses/GPL-2.0+)
   4  * PURPOSE:     Test to document the hooks used by various shims in AcLayers
   5  * COPYRIGHT:   Copyright 2018 Mark Jansen (mark.jansen@reactos.org)
   6  */
   7
   8 #include <ntstatus.h>
   9 #define WIN32_NO_STATUS
  10 #include <windows.h>
  11 #include <ndk/rtlfuncs.h>
  12 #include <strsafe.h>
  13 #include "wine/test.h"
  14
  15 #include "appshim_apitest.h"
  16
  17 static DWORD g_WinVersion;
  18
  19
  20 typedef struct expect_shim_hook
  21 {
  22     const char* Library;
  23     const char* Function;
  24 } expect_shim_hook;
  25
  26 typedef struct expect_shim_data
  27 {
  28     const WCHAR* ShimName;
  29     DWORD MinVersion;
  30     expect_shim_hook hooks[4];
  31 } expect_shim_data;
  32
  33
  34 static expect_shim_data data[] =
  35 {
  36     {
  37         L"VerifyVersionInfoLite",
  38         0,
  39         {
  40             { "KERNEL32.DLL", "VerifyVersionInfoA" },
  41             { "KERNEL32.DLL", "VerifyVersionInfoW" },
  42         }
  43     },
  44 };
  45
  46 static DWORD count_shims(expect_shim_data* data)
  47 {
  48     DWORD num;
  49     for (num = 0; num < _countof(data->hooks) && data->hooks[num].Library;)
  50     {
  51         ++num;
  52     }
  53     return num;
  54 }
  55
  56 static const char* safe_str(const char* ptr)
  57 {
  58     static char buffer[2][30];
  59     static int index = 0;
  60     if (HIWORD(ptr))
  61         return ptr;
  62
  63     index ^= 1;
  64     StringCchPrintfA(buffer[index], _countof(buffer[index]), "#%d", (int)ptr);
  65     return buffer[index];
  66 }
  67
  68 START_TEST(layer_hooks)
  69 {
  70     RTL_OSVERSIONINFOEXW rtlinfo = {0};
  71     size_t n, h;
  72
  73     tGETHOOKAPIS pGetHookAPIs = LoadShimDLL2(L"AcLayers.dll");
  74     if (!pGetHookAPIs)
  75         return;
  76
  77     rtlinfo.dwOSVersionInfoSize = sizeof(rtlinfo);
  78     RtlGetVersion((PRTL_OSVERSIONINFOW)&rtlinfo);
  79     g_WinVersion = (rtlinfo.dwMajorVersion << 8) | rtlinfo.dwMinorVersion;
  80
  81
  82
  83     for (n = 0; n < _countof(data); ++n)
  84     {
  85         expect_shim_data* current = data + n;
  86         DWORD num_shims = 0, expected_shims = count_shims(current);
  87
  88         PHOOKAPI hook = pGetHookAPIs("", current->ShimName, &num_shims);
  89
  90         if (current->MinVersion > g_WinVersion && !hook)
  91             continue;
  92
  93         ok(!!hook, "Expected a valid pointer, got nothing for %s\n", wine_dbgstr_w(current->ShimName));
  94         ok(num_shims == expected_shims, "Expected %u shims, got %u for %s\n",
  95            expected_shims, num_shims, wine_dbgstr_w(current->ShimName));
  96         for (h = 0; h < min(num_shims, expected_shims); ++h)
  97         {
  98             expect_shim_hook* expect_hk = current->hooks + h;
  99             PHOOKAPI got_hk = hook+h;
 100             int lib = lstrcmpA(expect_hk->Library, got_hk->LibraryName);
 101             int fn = lstrcmpA(safe_str(expect_hk->Function), safe_str(got_hk->FunctionName));
 102             ok(lib == 0, "Expected LibraryName to be %s, was: %s for %s\n",
 103                expect_hk->Library, got_hk->LibraryName, wine_dbgstr_w(current->ShimName));
 104             ok(fn == 0, "Expected FunctionName to be %s, was: %s for %s\n",
 105                safe_str(expect_hk->Function), safe_str(got_hk->FunctionName), wine_dbgstr_w(current->ShimName));
 106         }
 107         if (num_shims > expected_shims)
 108         {
 109             for (h = expected_shims; h < num_shims; ++h)
 110             {
 111                 PHOOKAPI got_hk = hook+h;
 112
 113                 ok(0, "Extra shim: %s!%s for %s\n",
 114                    got_hk->LibraryName, safe_str(got_hk->FunctionName), wine_dbgstr_w(current->ShimName));
 115             }
 116         }
 117         else
 118         {
 119             for (h = num_shims; h < expected_shims; ++h)
 120             {
 121                 expect_shim_hook* expect_hk = current->hooks + h;
 122
 123                 ok(0, "Missing shim: %s!%s for %s\n",
 124                    expect_hk->Library, safe_str(expect_hk->Function), wine_dbgstr_w(current->ShimName));
 125             }
 126         }
 127     }
 128 }