From 43f7a588f96aaf88e7b69441c3b50bc9c7b20df7 Mon Sep 17 00:00:00 2001 From: wolfbeast Date: Thu, 3 May 2018 05:55:15 +0200 Subject: Nuke the sandbox --- .../sandbox/chromium/base/strings/stringprintf.cc | 189 --------------------- 1 file changed, 189 deletions(-) delete mode 100644 security/sandbox/chromium/base/strings/stringprintf.cc (limited to 'security/sandbox/chromium/base/strings/stringprintf.cc') diff --git a/security/sandbox/chromium/base/strings/stringprintf.cc b/security/sandbox/chromium/base/strings/stringprintf.cc deleted file mode 100644 index 415845d61..000000000 --- a/security/sandbox/chromium/base/strings/stringprintf.cc +++ /dev/null @@ -1,189 +0,0 @@ -// Copyright 2013 The Chromium Authors. All rights reserved. -// Use of this source code is governed by a BSD-style license that can be -// found in the LICENSE file. - -#include "base/strings/stringprintf.h" - -#include -#include - -#include - -#include "base/macros.h" -#include "base/scoped_clear_errno.h" -#include "base/strings/string_util.h" -#include "base/strings/utf_string_conversions.h" -#include "build/build_config.h" - -namespace base { - -namespace { - -// Overloaded wrappers around vsnprintf and vswprintf. The buf_size parameter -// is the size of the buffer. These return the number of characters in the -// formatted string excluding the NUL terminator. If the buffer is not -// large enough to accommodate the formatted string without truncation, they -// return the number of characters that would be in the fully-formatted string -// (vsnprintf, and vswprintf on Windows), or -1 (vswprintf on POSIX platforms). -inline int vsnprintfT(char* buffer, - size_t buf_size, - const char* format, - va_list argptr) { - return base::vsnprintf(buffer, buf_size, format, argptr); -} - -#if defined(OS_WIN) -inline int vsnprintfT(wchar_t* buffer, - size_t buf_size, - const wchar_t* format, - va_list argptr) { - return base::vswprintf(buffer, buf_size, format, argptr); -} -#endif - -// Templatized backend for StringPrintF/StringAppendF. This does not finalize -// the va_list, the caller is expected to do that. -template -static void StringAppendVT(StringType* dst, - const typename StringType::value_type* format, - va_list ap) { - // First try with a small fixed size buffer. - // This buffer size should be kept in sync with StringUtilTest.GrowBoundary - // and StringUtilTest.StringPrintfBounds. - typename StringType::value_type stack_buf[1024]; - - va_list ap_copy; - va_copy(ap_copy, ap); - -#if !defined(OS_WIN) - ScopedClearErrno clear_errno; -#endif - int result = vsnprintfT(stack_buf, arraysize(stack_buf), format, ap_copy); - va_end(ap_copy); - - if (result >= 0 && result < static_cast(arraysize(stack_buf))) { - // It fit. - dst->append(stack_buf, result); - return; - } - - // Repeatedly increase buffer size until it fits. - int mem_length = arraysize(stack_buf); - while (true) { - if (result < 0) { -#if defined(OS_WIN) - // On Windows, vsnprintfT always returns the number of characters in a - // fully-formatted string, so if we reach this point, something else is - // wrong and no amount of buffer-doubling is going to fix it. - return; -#else - if (errno != 0 && errno != EOVERFLOW) - return; - // Try doubling the buffer size. - mem_length *= 2; -#endif - } else { - // We need exactly "result + 1" characters. - mem_length = result + 1; - } - - if (mem_length > 32 * 1024 * 1024) { - // That should be plenty, don't try anything larger. This protects - // against huge allocations when using vsnprintfT implementations that - // return -1 for reasons other than overflow without setting errno. - DLOG(WARNING) << "Unable to printf the requested string due to size."; - return; - } - - std::vector mem_buf(mem_length); - - // NOTE: You can only use a va_list once. Since we're in a while loop, we - // need to make a new copy each time so we don't use up the original. - va_copy(ap_copy, ap); - result = vsnprintfT(&mem_buf[0], mem_length, format, ap_copy); - va_end(ap_copy); - - if ((result >= 0) && (result < mem_length)) { - // It fit. - dst->append(&mem_buf[0], result); - return; - } - } -} - -} // namespace - -std::string StringPrintf(const char* format, ...) { - va_list ap; - va_start(ap, format); - std::string result; - StringAppendV(&result, format, ap); - va_end(ap); - return result; -} - -#if defined(OS_WIN) -std::wstring StringPrintf(const wchar_t* format, ...) { - va_list ap; - va_start(ap, format); - std::wstring result; - StringAppendV(&result, format, ap); - va_end(ap); - return result; -} -#endif - -std::string StringPrintV(const char* format, va_list ap) { - std::string result; - StringAppendV(&result, format, ap); - return result; -} - -const std::string& SStringPrintf(std::string* dst, const char* format, ...) { - va_list ap; - va_start(ap, format); - dst->clear(); - StringAppendV(dst, format, ap); - va_end(ap); - return *dst; -} - -#if defined(OS_WIN) -const std::wstring& SStringPrintf(std::wstring* dst, - const wchar_t* format, ...) { - va_list ap; - va_start(ap, format); - dst->clear(); - StringAppendV(dst, format, ap); - va_end(ap); - return *dst; -} -#endif - -void StringAppendF(std::string* dst, const char* format, ...) { - va_list ap; - va_start(ap, format); - StringAppendV(dst, format, ap); - va_end(ap); -} - -#if defined(OS_WIN) -void StringAppendF(std::wstring* dst, const wchar_t* format, ...) { - va_list ap; - va_start(ap, format); - StringAppendV(dst, format, ap); - va_end(ap); -} -#endif - -void StringAppendV(std::string* dst, const char* format, va_list ap) { - StringAppendVT(dst, format, ap); -} - -#if defined(OS_WIN) -void StringAppendV(std::wstring* dst, const wchar_t* format, va_list ap) { - StringAppendVT(dst, format, ap); -} -#endif - -} // namespace base -- cgit v1.2.3