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diff --git a/src/libzrtpcpp/ZrtpPacketPing.h b/src/libzrtpcpp/ZrtpPacketPing.h
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+/*
+ Copyright (C) 2006-2009 Werner Dittmann
+
+ 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, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef _ZRTPPACKETPING_H_
+#define _ZRTPPACKETPING_H_
+
+/**
+ * @file ZrtpPacketPing.h
+ * @brief The ZRTP Ping message
+ *
+ * @ingroup GNU_ZRTP
+ * @{
+ */
+
+#include <libzrtpcpp/ZrtpPacketBase.h>
+
+/**
+ * Implement the PingAck packet.
+ *
+ * The ZRTP simple message PingAck.
+ *
+ * @author Werner Dittmann <Werner.Dittmann@t-online.de>
+ */
+class __EXPORT ZrtpPacketPing : public ZrtpPacketBase {
+
+ protected:
+ Ping_t* pingHeader; ///< Point the the Ping message
+
+ public:
+ /// Creates a Ping message with default data
+ ZrtpPacketPing();
+
+ /// Creates a Ping message from received data
+ ZrtpPacketPing(uint8_t* data);
+
+ virtual ~ZrtpPacketPing();
+
+ /// Set ZRTP protocol version field, fixed ASCII character array
+ void setVersion(uint8_t *text) { memcpy(pingHeader->version, text,ZRTP_WORD_SIZE ); }
+
+ /// Get the endpoit hash, fixed byte array
+ uint8_t* getEpHash() { return pingHeader->epHash; }
+
+ private:
+ PingPacket_t data;
+};
+
+/**
+ * @}
+ */
+
+#endif // ZRTPPACKETCLEARACK
+