CMake/Source/cmCryptoHash.h

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/*============================================================================
CMake - Cross Platform Makefile Generator
Copyright 2000-2009 Kitware, Inc., Insight Software Consortium
Distributed under the OSI-approved BSD License (the "License");
see accompanying file Copyright.txt for details.
This software is distributed WITHOUT ANY WARRANTY; without even the
implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the License for more information.
============================================================================*/
#ifndef cmCryptoHash_h
#define cmCryptoHash_h
#include "cmStandardIncludes.h"
#include <cm_auto_ptr.hxx>
class cmCryptoHash
{
public:
virtual ~cmCryptoHash() {}
static CM_AUTO_PTR<cmCryptoHash> New(const char* algo);
std::string HashString(const std::string& input);
std::string HashFile(const std::string& file);
protected:
virtual void Initialize() = 0;
virtual void Append(unsigned char const*, int) = 0;
virtual std::string Finalize() = 0;
};
class cmCryptoHashMD5 : public cmCryptoHash
{
struct cmsysMD5_s* MD5;
public:
cmCryptoHashMD5();
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~cmCryptoHashMD5() CM_OVERRIDE;
protected:
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void Initialize() CM_OVERRIDE;
void Append(unsigned char const* buf, int sz) CM_OVERRIDE;
std::string Finalize() CM_OVERRIDE;
};
#define cmCryptoHash_SHA_CLASS_DECL(SHA) \
class cmCryptoHash##SHA : public cmCryptoHash \
{ \
union _SHA_CTX* SHA; \
\
public: \
cmCryptoHash##SHA(); \
~cmCryptoHash##SHA(); \
\
protected: \
virtual void Initialize(); \
virtual void Append(unsigned char const* buf, int sz); \
virtual std::string Finalize(); \
}
cmCryptoHash_SHA_CLASS_DECL(SHA1);
cmCryptoHash_SHA_CLASS_DECL(SHA224);
cmCryptoHash_SHA_CLASS_DECL(SHA256);
cmCryptoHash_SHA_CLASS_DECL(SHA384);
cmCryptoHash_SHA_CLASS_DECL(SHA512);
#undef cmCryptoHash_SHA_CLASS_DECL
#endif