text: /*====================================================================*
   *
   *   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.
   *
   *--------------------------------------------------------------------*/
  
  /*====================================================================*
   *
   *   edru.c - Qualcomm Atheros Ethernet II Data Read Utility
   *
   *   Listen for incoming Ethernet II frames and write frame data to
   *   stdout as a continuous binary data stream. Since frame data can
   *   contain anything, users should send program output to a file or
   *   pipe it through a filter program to prevent corruption of the
   *   terminal session. If all incoming data is ASCII then directing
   *   stdout to the console should not cause any problems.
   *
   *   this program can be used as a data target when testing AR6405
   *   UART applications; use program edsu to send files from a remote
   *   host and this program to display or save them;
   *
   *
   *   Contributor(s):
   *      Charles Maier
   *
   *--------------------------------------------------------------------*/
  
  
  /*====================================================================*
   *   system header files;
   *--------------------------------------------------------------------*/
  
  #include <fcntl.h>
  #include <stdio.h>
  #include <limits.h>
  #include <ctype.h>
  #include <unistd.h>
  #include <stdint.h>
  #include <stdlib.h>
  #include <string.h>
  #include <errno.h>
  
  #ifdef __linux__
  #include <net/if.h>
  #include <net/if_arp.h>
  #include <netpacket/packet.h>
  #include <signal.h>
  #endif
  
  /*====================================================================*
   *   custom header files;
   *--------------------------------------------------------------------*/
  
  #include "../tools/getoptv.h"
  #include "../tools/putoptv.h"
  #include "../tools/memory.h"
  #include "../tools/number.h"
  #include "../tools/types.h"
  #include "../tools/flags.h"
  #include "../tools/error.h"
  #include "../ether/channel.h"
  
  /*====================================================================*
   *   custom source files;
   *--------------------------------------------------------------------*/
  
  #ifndef MAKEFILE
  #include "../tools/getoptv.c"
  #include "../tools/putoptv.c"
  #include "../tools/version.c"
  #include "../tools/hexdump.c"
  #include "../tools/hexdecode.c"
  #include "../tools/hexstring.c"
  #include "../tools/basespec.c"
  #include "../tools/uintspec.c"
  #include "../tools/todigit.c"
  #include "../tools/error.c"
  #endif
  
  #ifndef MAKEFILE
  #include "../ether/channel.c"
  #include "../ether/openchannel.c"
  #include "../ether/closechannel.c"
  #include "../ether/sendpacket.c"
  #include "../ether/readpacket.c"
  #endif
  
  /*====================================================================*
   *   program constants;
   *--------------------------------------------------------------------*/
  
  #define PLCDEVICE "PLC"
  #define EDRU_ETHERTYPE ETH_P_802_2
  
  /*====================================================================*
   *
   *   int main (int argc, char * argv[]);
   *
   *
   *--------------------------------------------------------------------*/
  
  int main (int argc, char const * argv [])
  
  {
  	extern struct channel channel;
  	struct ethernet_frame frame;
  	signed length;
  	static char const * optv [] =
  	{
  		"e:i:qt:v",
  		PUTOPTV_S_DIVINE,
  		"Qualcomm Atheros Ethernet II Data Read Utility",
  		"e x\tethertype is (x) [" LITERAL (EDRU_ETHERTYPE) "]",
  
  #if defined (WINPCAP) || defined (LIBPCAP)
  
  		"i n\thost interface is (n) [" LITERAL (CHANNEL_ETHNUMBER) "]",
  
  #else
  
  		"i s\thost interface is (s) [" LITERAL (CHANNEL_ETHDEVICE) "]",
  
  #endif
  
  		"q\tsuppress normal output",
  		"t n\tread timeout is (n) milliseconds [" LITERAL (CHANNEL_FOREVER) "]",
  		"v\tverbose messages on stdout",
  		(char const *) (0)
  	};
  	signed c;
  	channel.type = EDRU_ETHERTYPE;
  	channel.timeout = CHANNEL_FOREVER;
  	if (getenv (PLCDEVICE))
  	{
  
  #if defined (WINPCAP) || defined (LIBPCAP)
  
  		channel.ifindex = atoi (getenv (PLCDEVICE));
  
  #else
  
  		channel.ifname = strdup (getenv (PLCDEVICE));
  
  #endif
  
  	}
  	optind = 1;
  	while ((c = getoptv (argc, argv, optv)) != -1)
  	{
  		switch (c)
  		{
  		case 'e':
  			channel.type = (uint16_t)(basespec (optarg, 16, sizeof (channel.type)));
  			break;
  		case 'i':
  
  #if defined (WINPCAP) || defined (LIBPCAP)
  
  			channel.ifindex = atoi (optarg);
  
  #else
  
  			channel.ifname = optarg;
  
  #endif
  
  			break;
  		case 'q':
  			_setbits (channel.flags, CHANNEL_SILENCE);
  			break;
  		case 't':
  			channel.timeout = (signed)(uintspec (optarg, 0, UINT_MAX));
  			break;
  		case 'v':
  			_setbits (channel.flags, CHANNEL_VERBOSE);
  			break;
  		default:
  			break;
  		}
  	}
  	argc -= optind;
  	argv += optind;
  	if (argc)
  	{
  		error (1, ECANCELED, ERROR_TOOMANY);
  	}
  	openchannel (&channel);
  	while ((length = readpacket (&channel, &frame, sizeof (frame))) > 0)
  	{
  		write (STDOUT_FILENO, frame.frame_data, ntohs (frame.frame_type));
  	}
  	closechannel (&channel);
  	return (0);
  }
  
  