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/*
* Copyright (C) 2001-2012 Jacek Sieka, arnetheduck on gmail point com
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#pragma once
#include "w.h"
#include "typedefs.h"
#include <openssl/ssl.h>
#include <vector>
#include <cstdint>
namespace dcpp {
namespace ssl {
template<typename T, void (*Release)(T*)>
class scoped_handle {
public:
explicit scoped_handle(T* t_ = nullptr) : t(t_) { }
~scoped_handle() { if(t) { Release(t); } }
operator T*() { return t; }
operator const T*() const { return t; }
explicit operator bool() const { return t; }
T* operator->() { return t; }
const T* operator->() const { return t; }
void reset(T* t_ = nullptr) { Release(t); t = t_; }
scoped_handle(scoped_handle&& rhs) : t(rhs.t) { rhs.t = nullptr; }
scoped_handle& operator=(scoped_handle&& rhs) { if(&rhs != this) { t = rhs.t; rhs.t = nullptr; } return *this; }
private:
scoped_handle(const scoped_handle<T, Release>&);
scoped_handle<T, Release>& operator=(const scoped_handle<T, Release>&);
T* t;
};
typedef scoped_handle<ASN1_INTEGER, ASN1_INTEGER_free> ASN1_INTEGER;
typedef scoped_handle<BIGNUM, BN_free> BIGNUM;
typedef scoped_handle<DH, DH_free> DH;
typedef scoped_handle<DSA, DSA_free> DSA;
typedef scoped_handle<EVP_PKEY, EVP_PKEY_free> EVP_PKEY;
typedef scoped_handle<RSA, RSA_free> RSA;
typedef scoped_handle<SSL, SSL_free> SSL;
typedef scoped_handle<SSL_CTX, SSL_CTX_free> SSL_CTX;
typedef scoped_handle<X509, X509_free> X509;
typedef scoped_handle<X509_NAME, X509_NAME_free> X509_NAME;
ByteVector X509_digest(::X509* x509, const ::EVP_MD* md);
}
}
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