#!/bin/sh
#---------------------------------------------------------------------------
#
#	tell called and calling numbers answer script for i4b isdnd
#	-----------------------------------------------------------
#
# $FreeBSD: src/etc/isdn/tell,v 1.4 1999/09/13 15:44:20 sheldonh Exp $
# $DragonFly: src/etc/isdn/tell,v 1.2 2003/06/17 04:24:47 dillon Exp $
#
#	last edit-date: [Thu May 20 11:45:15 1999]
#
#---------------------------------------------------------------------------
VARDIR=/var/isdn

#FreeBSD < 3.1, NetBSD, OpenBSD, BSD/OS
#LIBDIR=/usr/local/lib/isdn
#FreeBSD 3.1 and up
LIBDIR=/usr/share/isdn

LOGFILE=/tmp/answer.log
NCALLFILE=${VARDIR}/ncall
DATE=`date +%d%H`
DF=0
dF=0
sF=0

if ! set -- `getopt D:d:s: $*`; then
	echo 'Usage: answer -D device -d destination -s source'
	exit 1
fi

for i ; do
	case ${i} in
	-D)
		DEVICE=$2
		DF=1
		shift
		shift
		;;
	-d)
		DEST=$2
		dF=1
		shift
		shift
		;;
	-s)
		SRC=$2
		sF=1
		shift
		shift
		;;
	--)
		shift
		break
		;;
	esac
done

echo "" >>${LOGFILE}

if [ "${DF}" -eq 0 -o "${dF}" -eq 0 -o "${sF}" -eq 0 ]; then
	echo 'Usage: answer -D device -d destination -s source'
	exit 1
fi

echo "answer: device ${DEVICE} destination ${DEST} source ${SRC} " >>${LOGFILE}

if [ -r "${LIBDIR}/beep.al" ]; then
	dd of=${DEVICE} if=${LIBDIR}/beep.al bs=2k >/dev/null 2>&1
fi

# tell the caller the number he is calling from

POS=1
LENGTH=`expr ${SRC} : '.*'`

while : ; do
	DIGIT=`echo ${SRC} | cut -c ${POS}`
	/bin/dd of=${DEVICE} if=${LIBDIR}/${DIGIT}.al bs=2k >/dev/null 2>&1
	POS=`expr ${POS} + 1`
	if [ "${POS}" -gt "${LENGTH}" ]; then
		break
	fi
done

if [ -r "${LIBDIR}/beep.al" ]; then
	dd of=${DEVICE} if=${LIBDIR}/beep.al bs=2k >/dev/null 2>&1
fi