The Tor Browser: xpcom/windbgdlg/windbgdlg.cpp@6474c204b198

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-

     2  *

     3  * This Source Code Form is subject to the terms of the Mozilla Public

     4  * License, v. 2.0. If a copy of the MPL was not distributed with this

     5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     7 /* Windows only app to show a modal debug dialog - launched by nsDebug.cpp */

     8 #include <windows.h>

     9 #include <stdlib.h>

    10 #ifdef _MSC_VER

    11 #include <strsafe.h>

    12 #endif

    13 #ifdef __MINGW32__

    14 /* MingW currently does not implement a wide version of the

    15    startup routines.  Workaround is to implement something like

    16    it ourselves.  See bug 472063 */

    17 #include <stdio.h>

    18 #include <shellapi.h>

    19 int WINAPI wWinMain(HINSTANCE, HINSTANCE, LPWSTR, int);

    21 #undef __argc

    22 #undef __wargv

    24 static int __argc;

    25 static wchar_t** __wargv;

    27 int WINAPI

    28 WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,

    29         LPSTR lpszCommandLine, int nCmdShow)

    30 {

    31   LPWSTR commandLine = GetCommandLineW();

    33   /* parse for __argc and __wargv for compatibility, since mingw

    34    * doesn't claim to support it :(

    35    */

    36   __wargv = CommandLineToArgvW(commandLine, &__argc);

    37   if (!__wargv)

    38     return 127;

    40   /* need to strip off any leading whitespace plus the first argument

    41    * (the executable itself) to match what should be passed to wWinMain

    42    */

    43   while ((*commandLine <= L' ') && *commandLine) {

    44     ++commandLine;

    45   }

    46   if (*commandLine == L'"') {

    47     ++commandLine;

    48     while ((*commandLine != L'"') && *commandLine) {

    49       ++commandLine;

    50     }

    51     if (*commandLine) {

    52       ++commandLine;

    53     }

    54   } else {

    55     while (*commandLine > L' ') {

    56       ++commandLine;

    57     }

    58   }

    59   while ((*commandLine <= L' ') && *commandLine) {

    60     ++commandLine;

    61   }

    63   int result = wWinMain(hInstance, hPrevInstance, commandLine, nCmdShow);

    64   LocalFree(__wargv);

    65   return result;

    66 }

    67 #endif /* __MINGW32__ */

    70 int WINAPI

    71 wWinMain(HINSTANCE  hInstance, HINSTANCE  hPrevInstance,

    72          LPWSTR  lpszCmdLine, int  nCmdShow)

    73 {

    74     /* support for auto answering based on words in the assertion.

    75      * the assertion message is sent as a series of arguements (words) to the commandline.

    76      * set a "word" to 0xffffffff to let the word not affect this code.

    77      * set a "word" to 0xfffffffe to show the dialog.

    78      * set a "word" to 0x5 to ignore (program should continue).

    79      * set a "word" to 0x4 to retry (should fall into debugger).

    80      * set a "word" to 0x3 to abort (die).

    81      */

    82     DWORD regType;

    83     DWORD regValue = -1;

    84     DWORD regLength = sizeof regValue;

    85     HKEY hkeyCU, hkeyLM;

    86     RegOpenKeyExW(HKEY_CURRENT_USER, L"Software\\mozilla.org\\windbgdlg", 0, KEY_READ, &hkeyCU);

    87     RegOpenKeyExW(HKEY_LOCAL_MACHINE, L"Software\\mozilla.org\\windbgdlg", 0, KEY_READ, &hkeyLM);

    88     int argc =0;

    89     for (int i = __argc - 1; regValue == (DWORD)-1 && i; --i) {

    90         bool ok = false;

    91         if (hkeyCU)

    92             ok = RegQueryValueExW(hkeyCU, __wargv[i], 0, &regType, (LPBYTE)&regValue, &regLength) == ERROR_SUCCESS;

    93         if (!ok && hkeyLM)

    94             ok = RegQueryValueExW(hkeyLM, __wargv[i], 0, &regType, (LPBYTE)&regValue, &regLength) == ERROR_SUCCESS;

    95         if (!ok)

    96             regValue = -1;

    97     }

    98     if (hkeyCU)

    99         RegCloseKey(hkeyCU);

   100     if (hkeyLM)

   101         RegCloseKey(hkeyLM);

   102     if (regValue != (DWORD)-1 && regValue != (DWORD)-2)

   103         return regValue;

   104     static const int size = 4096;

   105     static WCHAR msg[size];

   107 #ifdef _MSC_VER

   108     StringCchPrintfW(msg,

   109 #else

   110     snwprintf(msg,

   111 #endif

   112               size,

   113               L"%s\n\nClick Abort to exit the Application.\n"

   114               L"Click Retry to Debug the Application.\n"

   115               L"Click Ignore to continue running the Application.",

   116               lpszCmdLine);

   117     msg[size - 1] = L'\0';

   118     return MessageBoxW(nullptr, msg, L"NSGlue_Assertion",

   119                        MB_ICONSTOP | MB_SYSTEMMODAL |

   120                        MB_ABORTRETRYIGNORE | MB_DEFBUTTON3);

   121 }

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