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// Copyright 2008, 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.
#ifndef SANDBOX_SANDBOX_POC_POCDLL_UTILS_H__
#define SANDBOX_SANDBOX_POC_POCDLL_UTILS_H__
#include <stdio.h>
#include <io.h>
#include "base/basictypes.h"
// Class to convert a HANDLE to a FILE *. The FILE * is closed when the
// object goes out of scope
class HandleToFile {
public:
HandleToFile() {
file_ = NULL;
};
// Note: c_file_handle_ does not need to be closed because fclose does it.
~HandleToFile() {
if (file_) {
fflush(file_);
fclose(file_);
}
};
// Translates a HANDLE (handle) to a FILE * opened with the mode "mode".
// The return value is the FILE * or NULL if there is an error.
FILE* Translate(HANDLE handle, const char *mode) {
if (file_) {
return NULL;
}
HANDLE new_handle;
BOOL result = ::DuplicateHandle(::GetCurrentProcess(),
handle,
::GetCurrentProcess(),
&new_handle,
0, // Don't ask for a specific
// desired access.
FALSE, // Not inheritable.
DUPLICATE_SAME_ACCESS);
if (!result) {
return NULL;
}
int c_file_handle = _open_osfhandle(reinterpret_cast<LONG_PTR>(new_handle),
0); // No flags
if (-1 == c_file_handle) {
return NULL;
}
file_ = _fdopen(c_file_handle, mode);
return file_;
};
private:
// the FILE* returned. We need to closed it at the end.
FILE* file_;
DISALLOW_EVIL_CONSTRUCTORS(HandleToFile);
};
#endif // SANDBOX_SANDBOX_POC_POCDLL_UTILS_H__
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