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// Copyright (c) 2006-2009 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 "chrome/installer/mini_installer/pe_resource.h"
PEResource::PEResource(HRSRC resource, HMODULE module)
: resource_(resource), module_(module) {
}
PEResource::PEResource(const wchar_t* name, const wchar_t* type, HMODULE module)
: resource_(NULL), module_(module) {
resource_ = ::FindResource(module, name, type);
}
bool PEResource::IsValid() {
return (NULL != resource_);
}
size_t PEResource::Size() {
return ::SizeofResource(module_, resource_);
}
bool PEResource::WriteToDisk(const wchar_t* full_path) {
// Resource handles are not real HGLOBALs so do not attempt to close them.
// Windows frees them whenever there is memory pressure.
HGLOBAL data_handle = ::LoadResource(module_, resource_);
if (NULL == data_handle) {
return false;
}
void* data = ::LockResource(data_handle);
if (NULL == data) {
return false;
}
size_t resource_size = Size();
HANDLE out_file = ::CreateFile(full_path, GENERIC_WRITE, 0, NULL,
CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
if (INVALID_HANDLE_VALUE == out_file) {
return false;
}
DWORD written = 0;
if (!::WriteFile(out_file, data, static_cast<DWORD>(resource_size),
&written, NULL)) {
::CloseHandle(out_file);
return false;
}
return ::CloseHandle(out_file) ? true : false;
}
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