packet_client.h

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/*
 * Copyright (c) 2009 Lukas Mejdrech
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef LIBNET_PACKET_CLIENT_H_
#define LIBNET_PACKET_CLIENT_H_

#include <net/packet.h>


#define PACKET_PREFIX(packet, type) \
        (type *) packet_prefix((packet), sizeof(type))

#define PACKET_SUFFIX(packet, type) \
        (type *) packet_suffix((packet), sizeof(type))

#define PACKET_TRIM(packet, prefix, suffix) \
        packet_trim((packet), sizeof(prefix), sizeof(suffix))

extern void *packet_prefix(packet_t *, size_t);
extern void *packet_suffix(packet_t *, size_t);
extern int packet_trim(packet_t *, size_t, size_t);
extern int packet_copy_data(packet_t *, const void *, size_t);
extern packet_id_t packet_get_id(const packet_t *);
extern size_t packet_get_data_length(const packet_t *);
extern void *packet_get_data(const packet_t *);
extern int packet_get_addr(const packet_t *, uint8_t **, uint8_t **);
extern int packet_set_addr(packet_t *, const uint8_t *, const uint8_t *, size_t);
extern packet_t *packet_get_copy(int, packet_t *);

#endif

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