csu3_am335x/EVSE/GPL/open-plc-utils-0.3/plc/LocalDeviceList.c

/*====================================================================*
 *
 *   Copyright (c) 2013 Qualcomm Atheros, Inc.
 *
 *   All rights reserved.
 *
 *   Redistribution and use in source and binary forms, with or
 *   without modification, are permitted (subject to the limitations
 *   in the disclaimer below) 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.
 *
 *   * Neither the name of Qualcomm Atheros nor the names of
 *     its contributors may be used to endorse or promote products
 *     derived from this software without specific prior written
 *     permission.
 *
 *   NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE
 *   GRANTED BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE
 *   COPYRIGHT HOLDERS AND CONTRIBUTORS "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 COPYRIGHT OWNER
 *   OR CONTRIBUTORS 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.
 *
 *--------------------------------------------------------------------*/

/*====================================================================*
 *
 *   signed LocalDeviceList (struct plc * plc, char const * space, char const * comma);
 *
 *   plc.h
 *
 *   print local device hardware addresses on stdout;
 *
 *
 *   Contributor(s):
 *      Charles Maier
 *      Matthieu Poullet
 *
 *--------------------------------------------------------------------*/

#ifndef LOCALDEVICELIST_SOURCE
#define LOCALDEVICELIST_SOURCE

#include "../tools/number.h"
#include "../plc/plc.h"

signed LocalDeviceList (struct plc * plc, char const * space, char const * comma)

{
	struct channel * channel = (struct channel *)(plc->channel);
	struct message * message = (struct message *)(plc->message);
	ssize_t packetsize;

#ifndef __GNUC__
#pragma pack (push,1)
#endif

	struct __packed vs_sw_ver_request
	{
		struct ethernet_hdr ethernet;
		struct qualcomm_hdr qualcomm;
	}
	* request = (struct vs_sw_ver_request *) (message);

#ifndef __GNUC__
#pragma pack (pop)
#endif

	memset (message, 0, sizeof (* message));
	EthernetHeader (&request->ethernet, channel->peer, channel->host, channel->type);
	QualcommHeader (&request->qualcomm, 0, (VS_SW_VER | MMTYPE_REQ));
	if (sendpacket (channel, message, (ETHER_MIN_LEN - ETHER_CRC_LEN)) <= 0)
	{
		return (-1);
	}
	while ((packetsize = readpacket (channel, message, sizeof (* message))) > 0)
	{
		if (UnwantedMessage (message, packetsize, 0, (VS_SW_VER | MMTYPE_CNF)))
		{
			continue;
		}
		hexout (request->ethernet.OSA, sizeof (request->ethernet.OSA), HEX_EXTENDER, 0, stdout);
		if ((space) && (*space))
		{
			printf ("%s", space);
		}
	}
	if ((comma) && (* comma))
	{
		printf ("%s", comma);
	}
	return (0);
}


#endif