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diff --git a/src/net/messagein.h b/src/net/messagein.h
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+++ b/src/net/messagein.h
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+/*
+ *  The Mana Server
+ *  Copyright (C) 2004-2010  The Mana World Development Team
+ *
+ *  This file is part of The Mana Server.
+ *
+ *  The Mana Server 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
+ *  any later version.
+ *
+ *  The Mana Server 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 The Mana Server.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef MESSAGEIN_H
+#define MESSAGEIN_H
+
+#include <iosfwd>
+
+/**
+ * Used for parsing an incoming message.
+ */
+class MessageIn
+{
+    public:
+        /**
+         * Constructor.
+         */
+        MessageIn(const char *data, int length);
+
+        /**
+         * Returns the message ID.
+         */
+        int getId() const { return mId; }
+
+        /**
+         * Returns the total length of this message.
+         */
+        int getLength() const { return mLength; }
+
+        int readInt8();             /**< Reads a byte. */
+        int readInt16();            /**< Reads a short. */
+        int readInt32();            /**< Reads a long. */
+
+        /**
+         * Reads a double. HACKY and should *not* be used for client
+         * communication!
+         */
+        double readDouble();
+
+        /**
+         * Reads a string. If a length is not given (-1), it is assumed
+         * that the length of the string is stored in a short at the
+         * start of the string.
+         */
+        std::string readString(int length = -1);
+
+        /**
+         * Returns the length of unread data.
+         */
+        int getUnreadLength() const { return mLength - mPos; }
+
+    private:
+        const char *mData;            /**< Packet data */
+        unsigned short mLength;       /**< Length of data in bytes */
+        unsigned short mId;           /**< The message ID. */
+
+        /**
+         * Actual position in the packet. From 0 to packet->length. A value
+         * bigger than packet->length means EOP was reached when reading it.
+         */
+        unsigned short mPos;
+
+        /**
+         * Streams message ID and length to the given output stream.
+         */
+        friend std::ostream& operator <<(std::ostream &os,
+                                         const MessageIn &msg);
+};
+
+#endif