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path: root/src/protocol/internal/fqterm_ssh1_packet.cpp
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/***************************************************************************
 *   fqterm, a terminal emulator for both BBS and *nix.                    *
 *   Copyright (C) 2008 fqterm development group.                          *
 *                                                                         *
 *   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, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
 *   51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.               *
 ***************************************************************************/

#include "fqterm_trace.h"
#include "fqterm_ssh1_packet.h"

#include "ssh_endian.h"
#include "crc32.h"
#include "ssh_packet.h"

namespace FQTerm {
//==============================================================================
//FQTermSSH1PacketReceiver
//==============================================================================

	FQTermSSH1PacketReceiver::FQTermSSH1PacketReceiver()
	{
		cipher = new_3des_ssh1(0);
	}

void FQTermSSH1PacketReceiver::parseData(buffer *input)
{
	while (buffer_len(input) > 0) {
		int res = parse_ssh1_packet(input, &recvbuf, cipher);
		switch (res) {
			case -ETOOBIG:
				emit packetError("Packet too big!");
				return;
			case -ETOOSMALL:
				return;
			case -ECRC32:
				emit packetError("CRC32 error!");
				return;
			default:
				real_data_len_ = res;
		}

		packet_type_ = buffer_get_u8(&recvbuf);

		emit packetAvaliable(packet_type_);
	}
}

}  // namespace FQTerm