/*
 * Copyright (c) 1997, 1999 Hellmuth Michaelis. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
 *
 *---------------------------------------------------------------------------
 *
 *	i4b daemon - dial handling routines
 *	-----------------------------------
 *
 *	$Id: dial.c,v 1.5 2003/10/06 09:43:27 itojun Exp $ 
 *
 * $FreeBSD$
 *
 *      last edit-date: [Mon Dec 13 21:45:51 1999]
 *
 *---------------------------------------------------------------------------*/

#include "isdnd.h"

/*---------------------------------------------------------------------------*
 *	select the first remote number to dial according to the
 *	dial strategy
 *---------------------------------------------------------------------------*/
void
select_first_dialno(struct cfg_entry *cep)
{
	int i, j;

	if (cep->remote_numbers_count < 1)
	{
		logit(LL_ERR, "select_first_dialno: remote_numbers_count < 1!");
		return;
	}

	if (cep->remote_numbers_count == 1)
	{
		strlcpy(cep->remote_phone_dialout,
		    cep->remote_numbers[0].number,
		    sizeof(cep->remote_phone_dialout));
		DBGL(DL_DIAL, (logit(LL_DBG, "select_first_dialno: only one no, no = %s", cep->remote_phone_dialout)));
		cep->last_remote_number = 0;
		return;
	}

	if (cep->remote_numbers_handling == RNH_FIRST)
	{
		strlcpy(cep->remote_phone_dialout,
		    cep->remote_numbers[0].number,
		    sizeof(cep->remote_phone_dialout));
		DBGL(DL_DIAL, (logit(LL_DBG, "select_first_dialno: use first, no = %s", cep->remote_phone_dialout)));
		cep->last_remote_number = 0;
		return;
	}

	i = cep->last_remote_number;
	   
	for (j = cep->remote_numbers_count; j > 0; j--)
	{
		if (cep->remote_numbers[i].flag == RNF_SUCC)
		{
			if (cep->remote_numbers_handling == RNH_LAST)
			{
				strlcpy(cep->remote_phone_dialout,
				    cep->remote_numbers[i].number,
				    sizeof(cep->remote_phone_dialout));
				DBGL(DL_DIAL, (logit(LL_DBG, "select_first_dialno: use last, no = %s", cep->remote_phone_dialout)));
				cep->last_remote_number = i;
				return;
			}
			else
			{
				if (++i >= cep->remote_numbers_count)
					i = 0;

				strlcpy(cep->remote_phone_dialout,
				    cep->remote_numbers[i].number,
				    sizeof(cep->remote_phone_dialout));
				DBGL(DL_DIAL, (logit(LL_DBG, "select_first_dialno: use next, no = %s", cep->remote_phone_dialout)));
				cep->last_remote_number = i;
				return;
			}
		}

		if (++i >= cep->remote_numbers_count)
			i = 0;
	}
	strlcpy(cep->remote_phone_dialout, cep->remote_numbers[0].number,
	    sizeof(cep->remote_phone_dialout));
	DBGL(DL_DIAL, (logit(LL_DBG, "select_first_dialno: no last found (use 0), no = %s", cep->remote_phone_dialout)));
	cep->last_remote_number = 0;	
}									

/*---------------------------------------------------------------------------*
 *	select next remote number to dial (last was unsuccesfull)
 *---------------------------------------------------------------------------*/
void
select_next_dialno(struct cfg_entry *cep)
{
	if (cep->remote_numbers_count < 1)
	{
		logit(LL_ERR, "select_next_dialno: remote_numbers_count < 1!");
		return;
	}

	if (cep->remote_numbers_count == 1)
	{
		strlcpy(cep->remote_phone_dialout,
		    cep->remote_numbers[0].number,
		    sizeof(cep->remote_phone_dialout));
		DBGL(DL_DIAL, (logit(LL_DBG, "select_next_dialno: only one no, no = %s", cep->remote_phone_dialout)));
		cep->last_remote_number = 0;
		return;
	}

	/* mark last try as bad */

	cep->remote_numbers[cep->last_remote_number].flag = RNF_IDLE;

	/* next one to try */
	
	cep->last_remote_number++;

	if (cep->last_remote_number >= cep->remote_numbers_count)
		cep->last_remote_number = 0;

	strlcpy(cep->remote_phone_dialout,
	    cep->remote_numbers[cep->last_remote_number].number,
	    sizeof(cep->remote_phone_dialout));
	
	DBGL(DL_DIAL, (logit(LL_DBG, "select_next_dialno: index=%d, no=%s",
		cep->last_remote_number,
		cep->remote_numbers[cep->last_remote_number].number)));
}									

/*---------------------------------------------------------------------------*
 *	dial succeded, store this number as the last successful
 *---------------------------------------------------------------------------*/
void
select_this_dialno(struct cfg_entry *cep)
{
	cep->remote_numbers[cep->last_remote_number].flag = RNF_SUCC;
	
	DBGL(DL_DIAL, (logit(LL_DBG, "select_this_dialno: index = %d, no = %s",
		cep->last_remote_number,
		cep->remote_numbers[cep->last_remote_number].number)));
}

/* EOF */