ClickHouse/base/poco/NetSSL_OpenSSL/include/Poco/Net/Utility.h

//
// Utility.h
//
// Library: NetSSL_OpenSSL
// Package: SSLCore
// Module:  Utility
//
// Definition of the Utility class.
//
// Copyright (c) 2006-2009, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// SPDX-License-Identifier:	BSL-1.0
//


#ifndef NetSSL_Utility_INCLUDED
#define NetSSL_Utility_INCLUDED


#include "Poco/Net/Context.h"
#include "Poco/Net/NetSSL.h"


namespace Poco
{
namespace Net
{


    class NetSSL_API Utility
    /// This class provides various helper functions for working
    /// with the OpenSSL library.
    {
    public:
        static Context::VerificationMode convertVerificationMode(const std::string & verMode);
        /// Non-case sensitive conversion of a string to a VerificationMode enum.
        /// If verMode is illegal an InvalidArgumentException is thrown.

        static std::string convertCertificateError(long errCode);
        /// Converts an SSL certificate handling error code into an error message.

        static std::string getLastError();
        /// Returns the last error from the error stack

        static void clearErrorStack();
        /// Clears the error stack
    };


}
} // namespace Poco::Net


#endif // NetSSL_Utility_INCLUDED