/*
  Copyright (C) 2006-2007 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/>.
*/

/*
 * Authors: Werner Dittmann <Werner.Dittmann@t-online.de>
 */

#include <libzrtpcpp/ZrtpPacketConfirm.h>

ZrtpPacketConfirm::ZrtpPacketConfirm(uint8_t sl) {
    DEBUGOUT((fprintf(stdout, "Creating Confirm packet without data\n")));

    int32_t length = sizeof(ConfirmPacket_t) + (sl * ZRTP_WORD_SIZE) + CRC_SIZE;

    void* allocated = &data;
    memset(allocated, 0, length);

    zrtpHeader = (zrtpPacketHeader_t *)&((ConfirmPacket_t *)allocated)->hdr;	// the standard header
    confirmHeader = (Confirm_t *)&((ConfirmPacket_t *)allocated)->confirm;

    setZrtpId();
    setLength((length - CRC_SIZE) / 4);
}

ZrtpPacketConfirm::ZrtpPacketConfirm(uint8_t* data) {
    DEBUGOUT((fprintf(stdout, "Creating Confirm packet from data\n")));

    allocated = NULL;
    zrtpHeader = (zrtpPacketHeader_t *)&((ConfirmPacket_t *)data)->hdr;	// the standard header
    confirmHeader = (Confirm_t *)&((ConfirmPacket_t *)data)->confirm;
}

ZrtpPacketConfirm::~ZrtpPacketConfirm() {
    DEBUGOUT((fprintf(stdout, "Deleting Confirm packet: alloc: %x\n", allocated)));
}