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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
#include "WindowsUnicode.h"
#include <windows.h>
// For UNICODE_STRING
#include <winternl.h>
#include <string.h>
namespace mozilla {
namespace glue {
mozilla::UniquePtr<char[]> WideToUTF8(const wchar_t* aStr,
const size_t aStrLenExclNul) {
int numConv = ::WideCharToMultiByte(CP_UTF8, 0, aStr, aStrLenExclNul, nullptr,
0, nullptr, nullptr);
if (!numConv) {
return nullptr;
}
// Include room for the null terminator by adding one
auto buf = mozilla::MakeUnique<char[]>(numConv + 1);
numConv = ::WideCharToMultiByte(CP_UTF8, 0, aStr, aStrLenExclNul, buf.get(),
numConv, nullptr, nullptr);
if (!numConv) {
return nullptr;
}
// Add null termination. numConv does not include the terminator, so we don't
// subtract 1 when indexing into buf.
buf[numConv] = 0;
return buf;
}
mozilla::UniquePtr<char[]> WideToUTF8(const wchar_t* aStr) {
return WideToUTF8(aStr, wcslen(aStr));
}
mozilla::UniquePtr<char[]> WideToUTF8(const std::wstring& aStr) {
return WideToUTF8(aStr.data(), aStr.length());
}
mozilla::UniquePtr<char[]> WideToUTF8(PCUNICODE_STRING aStr) {
if (!aStr) {
return nullptr;
}
return WideToUTF8(aStr->Buffer, aStr->Length / sizeof(WCHAR));
}
} // namespace glue
} // namespace mozilla
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