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diff --git a/vmime-master/src/vmime/security/sasl/SASLContext.hpp b/vmime-master/src/vmime/security/sasl/SASLContext.hpp
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+++ b/vmime-master/src/vmime/security/sasl/SASLContext.hpp
@@ -0,0 +1,136 @@
+//
+// VMime library (http://www.vmime.org)
+// Copyright (C) 2002 Vincent Richard <vincent@vmime.org>
+//
+// 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 3 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, write to the Free Software Foundation, Inc.,
+// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+//
+// Linking this library statically or dynamically with other modules is making
+// a combined work based on this library.  Thus, the terms and conditions of
+// the GNU General Public License cover the whole combination.
+//
+
+#ifndef VMIME_SECURITY_SASL_SASLCONTEXT_HPP_INCLUDED
+#define VMIME_SECURITY_SASL_SASLCONTEXT_HPP_INCLUDED
+
+
+#include "vmime/config.hpp"
+
+
+#if VMIME_HAVE_MESSAGING_FEATURES && VMIME_HAVE_SASL_SUPPORT
+
+
+#include "vmime/types.hpp"
+
+#include "vmime/security/sasl/SASLSession.hpp"
+#include "vmime/security/sasl/SASLMechanismFactory.hpp"
+
+
+namespace vmime {
+namespace security {
+namespace sasl {
+
+
+/** An SASL client context.
+  */
+class VMIME_EXPORT SASLContext : public object, public enable_shared_from_this <SASLContext> {
+
+	friend class SASLSession;
+	friend class builtinSASLMechanism;
+
+public:
+
+	~SASLContext();
+
+	/** Construct and initialize a new SASL context.
+	  *
+	  * @return pointer to a new SASL context
+	  */
+	static shared_ptr <SASLContext> create();
+
+	/** Create and initialize a new SASL session.
+	  *
+	  * @param serviceName name of the service which will use the session
+	  * @param auth authenticator object to use during the session
+	  * @param mech SASL mechanism
+	  * @return a new SASL session
+	  */
+	shared_ptr <SASLSession> createSession(
+		const string& serviceName,
+		const shared_ptr <authenticator>& auth,
+		const shared_ptr <SASLMechanism>& mech
+	);
+
+	/** Create an instance of an SASL mechanism.
+	  *
+	  * @param name mechanism name
+	  * @return a new instance of the specified SASL mechanism
+	  * @throw exceptions::no_such_mechanism if no mechanism is
+	  * registered for the specified name
+	  */
+	shared_ptr <SASLMechanism> createMechanism(const string& name);
+
+	/** Suggests an SASL mechanism among a set of mechanisms
+	  * supported by the server.
+	  *
+	  * @param mechs list of mechanisms
+	  * @return suggested mechanism (usually the safest mechanism
+	  * supported by both the client and the server)
+	  */
+	shared_ptr <SASLMechanism> suggestMechanism(
+		const std::vector <shared_ptr <SASLMechanism> >& mechs
+	);
+
+	/** Helper function for decoding Base64-encoded challenge.
+	  *
+	  * @param input input buffer
+	  * @param output output buffer
+	  * @param outputLen length of output buffer
+	  */
+	void decodeB64(const string& input, byte_t** output, size_t* outputLen);
+
+	/** Helper function for encoding challenge in Base64.
+	  *
+	  * @param input input buffer
+	  * @param inputLen length of input buffer
+	  * @return Base64-encoded challenge
+	  */
+	const string encodeB64(const byte_t* input, const size_t inputLen);
+
+private:
+
+	SASLContext();
+	SASLContext(SASLContext&);
+
+
+	static const string getErrorMessage(const string& fname, const int code);
+
+
+#ifdef GSASL_VERSION
+	Gsasl* m_gsaslContext;
+#else
+	void* m_gsaslContext;
+#endif // GSASL_VERSION
+
+};
+
+
+} // sasl
+} // security
+} // vmime
+
+
+#endif // VMIME_HAVE_MESSAGING_FEATURES && VMIME_HAVE_SASL_SUPPORT
+
+#endif // VMIME_SECURITY_SASL_SASLCONTEXT_HPP_INCLUDED