mirror of
https://github.com/pocoproject/poco.git
synced 2024-12-16 03:42:53 +01:00
b0581433a7
fix: remove executable flag and change back to 100644 (was 100755) Signed-off-by: Roger Meier <r.meier@siemens.com>
103 lines
2.4 KiB
C++
103 lines
2.4 KiB
C++
//
|
|
// DigestStream.h
|
|
//
|
|
// $Id: //poco/1.4/Foundation/include/Poco/DigestStream.h#1 $
|
|
//
|
|
// Library: Foundation
|
|
// Package: Crypt
|
|
// Module: DigestStream
|
|
//
|
|
// Definition of classes DigestInputStream and DigestOutputStream.
|
|
//
|
|
// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
|
|
// and Contributors.
|
|
//
|
|
// SPDX-License-Identifier: BSL-1.0
|
|
//
|
|
|
|
|
|
#ifndef Foundation_DigestStream_INCLUDED
|
|
#define Foundation_DigestStream_INCLUDED
|
|
|
|
|
|
#include "Poco/Foundation.h"
|
|
#include "Poco/BufferedStreamBuf.h"
|
|
#include "Poco/DigestEngine.h"
|
|
#include <istream>
|
|
#include <ostream>
|
|
|
|
|
|
namespace Poco {
|
|
|
|
|
|
class Foundation_API DigestBuf: public BufferedStreamBuf
|
|
/// This streambuf computes a digest of all data going
|
|
/// through it.
|
|
{
|
|
public:
|
|
DigestBuf(DigestEngine& eng);
|
|
DigestBuf(DigestEngine& eng, std::istream& istr);
|
|
DigestBuf(DigestEngine& eng, std::ostream& ostr);
|
|
~DigestBuf();
|
|
int readFromDevice(char* buffer, std::streamsize length);
|
|
int writeToDevice(const char* buffer, std::streamsize length);
|
|
void close();
|
|
|
|
private:
|
|
DigestEngine& _eng;
|
|
std::istream* _pIstr;
|
|
std::ostream* _pOstr;
|
|
static const int BUFFER_SIZE;
|
|
};
|
|
|
|
|
|
class Foundation_API DigestIOS: public virtual std::ios
|
|
/// The base class for DigestInputStream and DigestOutputStream.
|
|
///
|
|
/// This class is needed to ensure the correct initialization
|
|
/// order of the stream buffer and base classes.
|
|
{
|
|
public:
|
|
DigestIOS(DigestEngine& eng);
|
|
DigestIOS(DigestEngine& eng, std::istream& istr);
|
|
DigestIOS(DigestEngine& eng, std::ostream& ostr);
|
|
~DigestIOS();
|
|
DigestBuf* rdbuf();
|
|
|
|
protected:
|
|
DigestBuf _buf;
|
|
};
|
|
|
|
|
|
class Foundation_API DigestInputStream: public DigestIOS, public std::istream
|
|
/// This istream computes a digest of
|
|
/// all the data passing through it,
|
|
/// using a DigestEngine.
|
|
{
|
|
public:
|
|
DigestInputStream(DigestEngine& eng, std::istream& istr);
|
|
~DigestInputStream();
|
|
};
|
|
|
|
|
|
class Foundation_API DigestOutputStream: public DigestIOS, public std::ostream
|
|
/// This ostream computes a digest of
|
|
/// all the data passing through it,
|
|
/// using a DigestEngine.
|
|
/// To ensure that all data has been incorporated
|
|
/// into the digest, call close() or flush() before
|
|
/// you obtain the digest from the digest engine.
|
|
{
|
|
public:
|
|
DigestOutputStream(DigestEngine& eng);
|
|
DigestOutputStream(DigestEngine& eng, std::ostream& ostr);
|
|
~DigestOutputStream();
|
|
void close();
|
|
};
|
|
|
|
|
|
} // namespace Poco
|
|
|
|
|
|
#endif // Foundation_DigestStream_INCLUDED
|