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

/*====================================================================*
 *
 *   Copyright (c) 2013 Qualcomm Atheros, Inc.
 *
 *   All rights reserved.
 *
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 *   without modification, are permitted (subject to the limitations
 *   in the disclaimer below) provided that the following conditions
 *   are met:
 *
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 *     notice, this list of conditions and the following disclaimer.
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 *     copyright notice, this list of conditions and the following
 *     disclaimer in the documentation and/or other materials
 *     provided with the distribution.
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 *   * 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
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 *   GRANTED BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE
 *   COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
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/*====================================================================*
 *
 *   void Request (struct plc * plc, char const * format, ...);
 *
 *   plc.h
 *
 *   Inform the user that an operation has started; print the channel
 *   name, template destination address and user message on stdout
 *   unless the PLC_SILENCE flag is set;
 *
 *   This function is identical to Confirm () except that it prints
 *   the template destination address instead of the packet source
 *   address because it is called before outgoing frames are encoded;
 *
 *
 *   Contributor(s):
 *      Charles Maier
 *
 *--------------------------------------------------------------------*/

#ifndef REQUEST_SOURCE
#define REQUEST_SOURCE

#include <stdio.h>
#include <stdarg.h>

#include "../plc/plc.h"
#include "../tools/memory.h"
#include "../tools/flags.h"

#ifdef __GNUC__

__attribute__ ((format (printf, 2, 3)))

#endif

void Request (struct plc * plc, char const *format, ...)

{
	if (_allclr (plc->flags, PLC_SILENCE))
	{
		char address [ETHER_ADDR_LEN * 3];
		struct channel * channel = (struct channel *)(plc->channel);
		hexdecode (channel->peer, sizeof (channel->peer), address, sizeof (address));
		fprintf (stderr, "%s %s ", channel->ifname, address);
		if ((format) && (*format))
		{
			va_list arglist;
			va_start (arglist, format);
			vfprintf (stderr, format, arglist);
			va_end (arglist);
		}
		fprintf (stderr, "\n");
	}
	return;
}


#endif