зеркало из https://github.com/mozilla/gecko-dev.git
63 строки
2.3 KiB
C++
63 строки
2.3 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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// Copyright (c) 2011 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef SANDBOXING_COMMON_ENVIRONMENTMAP_H_
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#define SANDBOXING_COMMON_ENVIRONMENTMAP_H_
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#include <map>
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#include <memory>
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#include <string>
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namespace base {
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#if defined(XP_WIN)
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typedef std::wstring NativeEnvironmentString;
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typedef std::map<NativeEnvironmentString, NativeEnvironmentString>
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EnvironmentMap;
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# define ENVIRONMENT_LITERAL(x) L##x
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# define ENVIRONMENT_STRING(x) \
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((std::wstring)(NS_ConvertUTF8toUTF16((x)).get()))
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// Returns a modified environment vector constructed from the given environment
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// and the list of changes given in |changes|. Each key in the environment is
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// matched against the first element of the pairs. In the event of a match, the
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// value is replaced by the second of the pair, unless the second is empty, in
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// which case the key-value is removed.
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//
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// This Windows version takes and returns a Windows-style environment block
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// which is a concatenated list of null-terminated 16-bit strings. The end is
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// marked by a double-null terminator. The size of the returned string will
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// include the terminators.
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NativeEnvironmentString AlterEnvironment(const wchar_t* env,
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const EnvironmentMap& changes);
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#else
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typedef std::string NativeEnvironmentString;
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typedef std::map<NativeEnvironmentString, NativeEnvironmentString>
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EnvironmentMap;
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# define ENVIRONMENT_LITERAL(x) x
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# define ENVIRONMENT_STRING(x) x
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// See general comments for the Windows version above.
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//
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// This Posix version takes and returns a Posix-style environment block, which
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// is a null-terminated list of pointers to null-terminated strings. The
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// returned array will have appended to it the storage for the array itself so
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// there is only one pointer to manage, but this means that you can't copy the
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// array without keeping the original around.
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std::unique_ptr<char*[]> AlterEnvironment(const char* const* env,
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const EnvironmentMap& changes);
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#endif
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} // namespace base
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#endif // SANDBOXING_COMMON_ENVIRONMENTMAP_H_
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