__ __ __ __ _____ _ _ _____ _ _ _
| \/ | \ \ / / | __ \ (_) | | / ____| | | | |
| \ / |_ __\ V / | |__) | __ ___ ____ _| |_ ___ | (___ | |__ ___| | |
| |\/| | '__|> < | ___/ '__| \ \ / / _` | __/ _ \ \___ \| '_ \ / _ \ | |
| | | | |_ / . \ | | | | | |\ V / (_| | || __/ ____) | | | | __/ | |
|_| |_|_(_)_/ \_\ |_| |_| |_| \_/ \__,_|\__\___| |_____/|_| |_|\___V 2.1
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/*
* Tomcrypt library <= firebird : c++ wrapper.
*
* The contents of this file are subject to the Initial
* Developer's Public License Version 1.0 (the "License");
* you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
* https://www.firebirdsql.org/en/initial-developer-s-public-license-version-1-0/
*
* Software distributed under the License is distributed AS IS,
* WITHOUT WARRANTY OF ANY KIND, either express or implied.
* See the License for the specific language governing rights
* and limitations under the License.
*
* The Original Code was created by Alexander Peshkoff
* for the Firebird Open Source RDBMS project.
*
* Copyright (c) 2020 Alexander Peshkoff <peshkoff@mail.ru>
* and all contributors signed below.
*
* All Rights Reserved.
* Contributor(s): ______________________________________.
*/
#include <tomcrypt.h>
#include <firebird/Interface.h>
using namespace Firebird;
#include <stdio.h>
void error(ThrowStatusWrapper* status, const char* text);
void check(ThrowStatusWrapper* status, int err, const char* text);
unsigned readHexKey(ThrowStatusWrapper* status, const char* hex, unsigned char* key, unsigned bufSize);
class PseudoRandom
{
public:
#if CRYPT > 0x0100
typedef ltc_prng_descriptor PrngDescriptor;
#else
typedef _prng_descriptor PrngDescriptor;
#endif
void init(ThrowStatusWrapper* status);
void fini();
const PrngDescriptor* getDsc();
int index;
prng_state state;
};
class Hash
{
protected:
void init(ThrowStatusWrapper* status, const ltc_hash_descriptor* desc);
public:
void fini()
{ }
int index;
};
class HashSha1 : public Hash
{
public:
void init(ThrowStatusWrapper* status)
{
Hash::init(status, &sha1_desc);
}
};
class HashSha256 : public Hash
{
public:
void init(ThrowStatusWrapper* status)
{
Hash::init(status, &sha256_desc);
}
};
// controls reference counter of the object where points
enum NoIncrement {NO_INCREMENT};
template <typename T>
class RefPtr
{
public:
RefPtr() : ptr(NULL)
{ }
explicit RefPtr(T* p) : ptr(p)
{
if (ptr)
{
ptr->addRef();
}
}
// This special form of ctor is used to create refcounted ptr from interface,
// returned by a function (which increments counter on return)
RefPtr(NoIncrement x, T* p) : ptr(p)
{ }
RefPtr(const RefPtr& r) : ptr(r.ptr)
{
if (ptr)
{
ptr->addRef();
}
}
~RefPtr()
{
if (ptr)
{
ptr->release();
}
}
T* operator=(T* p)
{
return assign(p);
}
T* operator=(const RefPtr& r)
{
return assign(r.ptr);
}
operator T*()
{
return ptr;
}
T* operator->()
{
return ptr;
}
operator const T*() const
{
return ptr;
}
const T* operator->() const
{
return ptr;
}
bool operator !() const
{
return !ptr;
}
bool operator ==(const RefPtr& r) const
{
return ptr == r.ptr;
}
bool operator !=(const RefPtr& r) const
{
return ptr != r.ptr;
}
void clear() throw() // Used after detach/commit/close/etc., i.e. release() not needed
{
ptr = NULL;
}
void assignNoIncrement(T* const p)
{
assign(NULL);
ptr = p;
}
private:
T* assign(T* const p)
{
if (ptr != p)
{
if (p)
{
p->addRef();
}
T* tmp = ptr;
ptr = p;
if (tmp)
{
tmp->release();
}
}
return ptr;
}
T* ptr;
};
// Often used form of RefPtr
template <class R>
class AutoRelease : public RefPtr<R>
{
public:
AutoRelease(R* r)
: RefPtr<R>(NO_INCREMENT, r)
{ }
};