The Tor Browser: toolkit/crashreporter/google-breakpad/src/common/windows/string

toolkit/crashreporter/google-breakpad/src/common/windows/string_utils-inl.h@129ffea94266 (annotated)

toolkit/crashreporter/google-breakpad/src/common/windows/string_utils-inl.h

Sat, 03 Jan 2015 20:18:00 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Sat, 03 Jan 2015 20:18:00 +0100
branch: TOR_BUG_3246
changeset 7: 129ffea94266
permissions: -rw-r--r--

Conditionally enable double key logic according to:
private browsing mode or privacy.thirdparty.isolate preference and
implement in GetCookieStringCommon and FindCookie where it counts...
With some reservations of how to convince FindCookie users to test
condition and pass a nullptr when disabling double key logic.

 // Copyright (c) 2006, Google Inc.
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 // notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 // copyright notice, this list of conditions and the following disclaimer
 // in the documentation and/or other materials provided with the
 // distribution.
 //     * Neither the name of Google Inc. nor the names of its
 // contributors may be used to endorse or promote products derived from
 // this software without specific prior written permission.
 //
 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 // string_utils-inl.h: Safer string manipulation on Windows, supporting
 // pre-MSVC8 environments.
 #ifndef COMMON_WINDOWS_STRING_UTILS_INL_H__
 #define COMMON_WINDOWS_STRING_UTILS_INL_H__
 #include <stdarg.h>
 #include <wchar.h>
 #include <string>
 // The "ll" printf format size specifier corresponding to |long long| was
 // intrudced in MSVC8.  Earlier versions did not provide this size specifier,
 // but "I64" can be used to print 64-bit types.  Don't use "I64" where "ll"
 // is available, in the event of oddball systems where |long long| is not
 // 64 bits wide.
 #if _MSC_VER >= 1400  // MSVC 2005/8
 #define WIN_STRING_FORMAT_LL "ll"
 #else  // MSC_VER >= 1400
 #define WIN_STRING_FORMAT_LL "I64"
 #endif  // MSC_VER >= 1400
 // A nonconforming version of swprintf, without the length argument, was
 // included with the CRT prior to MSVC8.  Although a conforming version was
 // also available via an overload, it is not reliably chosen.  _snwprintf
 // behaves as a standards-confirming swprintf should, so force the use of
 // _snwprintf when using older CRTs.
 #if _MSC_VER < 1400  // MSVC 2005/8
 #define swprintf _snwprintf
 #else
 // For MSVC8 and newer, swprintf_s is the recommended method. Conveniently,
 // it takes the same argument list as swprintf.
 #define swprintf swprintf_s
 #endif  // MSC_VER < 1400
 namespace google_breakpad {
 using std::string;
 using std::wstring;
 class WindowsStringUtils {
  public:
   // Roughly equivalent to MSVC8's wcscpy_s, except pre-MSVC8, this does
   // not fail if source is longer than destination_size.  The destination
   // buffer is always 0-terminated.
   static void safe_wcscpy(wchar_t *destination, size_t destination_size,
                           const wchar_t *source);
   // Roughly equivalent to MSVC8's wcsncpy_s, except that _TRUNCATE cannot
   // be passed directly, and pre-MSVC8, this will not fail if source or count
   // are longer than destination_size.  The destination buffer is always
   // 0-terminated.
   static void safe_wcsncpy(wchar_t *destination, size_t destination_size,
                            const wchar_t *source, size_t count);
   // Performs multi-byte to wide character conversion on C++ strings, using
   // mbstowcs_s (MSVC8) or mbstowcs (pre-MSVC8).  Returns false on failure,
   // without setting wcs.
   static bool safe_mbstowcs(const string &mbs, wstring *wcs);
   // The inverse of safe_mbstowcs.
   static bool safe_wcstombs(const wstring &wcs, string *mbs);
   // Returns the base name of a file, e.g. strips off the path.
   static wstring GetBaseName(const wstring &filename);
  private:
   // Disallow instantiation and other object-based operations.
   WindowsStringUtils();
   WindowsStringUtils(const WindowsStringUtils&);
   ~WindowsStringUtils();
   void operator=(const WindowsStringUtils&);
 };
 // static
 inline void WindowsStringUtils::safe_wcscpy(wchar_t *destination,
                                             size_t destination_size,
                                             const wchar_t *source) {
 #if _MSC_VER >= 1400  // MSVC 2005/8
   wcscpy_s(destination, destination_size, source);
 #else  // _MSC_VER >= 1400
   // Pre-MSVC 2005/8 doesn't have wcscpy_s.  Simulate it with wcsncpy.
   // wcsncpy doesn't 0-terminate the destination buffer if the source string
   // is longer than size.  Ensure that the destination is 0-terminated.
   wcsncpy(destination, source, destination_size);
   if (destination && destination_size)
     destination[destination_size - 1] = 0;
 #endif  // _MSC_VER >= 1400
 }
 // static
 inline void WindowsStringUtils::safe_wcsncpy(wchar_t *destination,
                                              size_t destination_size,
                                              const wchar_t *source,
                                              size_t count) {
 #if _MSC_VER >= 1400  // MSVC 2005/8
   wcsncpy_s(destination, destination_size, source, count);
 #else  // _MSC_VER >= 1400
   // Pre-MSVC 2005/8 doesn't have wcsncpy_s.  Simulate it with wcsncpy.
   // wcsncpy doesn't 0-terminate the destination buffer if the source string
   // is longer than size.  Ensure that the destination is 0-terminated.
   if (destination_size < count)
     count = destination_size;
   wcsncpy(destination, source, count);
   if (destination && count)
     destination[count - 1] = 0;
 #endif  // _MSC_VER >= 1400
 }
 }  // namespace google_breakpad
 #endif  // COMMON_WINDOWS_STRING_UTILS_INL_H__

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toolkit/crashreporter/google-breakpad/src/common/windows/string_utils-inl.h@129ffea94266 (annotated)

toolkit/crashreporter/google-breakpad/src/common/windows/string_utils-inl.h