/usr/share/doc/ppp/examples/scripts/redialer is in ppp 2.4.5-5ubuntu1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 | #!/bin/sh
#
# A chatscript that will attempt to dial multiple numbers in sequence, until
# you get connected.
#
# To use: edit /etc/peers/provider, and change the connect line to read:
# connect "/usr/local/bin/redialer"
#
# See below for configuration.
# This is a list of chatscripts to use to get connected, and (optional)
# telephone numbers to call for each of those chatscripts.
#
# Note that in the chatscripts, you may use #NUMBER#, this will be replaced
# with the number it is calling. You might want to use this to only have one
# chatscript that is used for all numbers, or you might need multiple
# chatscripts.
PHONE1=123456789
CHAT1=/etc/chatscripts/provider
PHONE2=912345678
CHAT2=/etc/chatscripts/provider
PHONE3=891234567
CHAT3=/etc/chatscripts/provider
PHONE4=789123456
CHAT4=/etc/chatscripts/provider
PHONE5=001234567
CHAT5=/etc/chatscripts/provider
# How long to sleep between retries:
#
# Note that this is a parameter to sleep so use "15s" for 15 seconds,
# "1m" for 1 minute, etc
SLEEP_DELAY=1s
# The code below does the dialing.
attempt=0
while : ; do
attempt=`expr $attempt + 1`
NUMBER=`eval echo '$PHONE'$attempt`
CHAT=`eval echo '$CHAT'$attempt`
if [ ! "$CHAT" ]; then
attempt=0
else
logger "Dialing attempt number: $attempt"
sed s/#NUMBER#/$NUMBER/ $CHAT >/etc/chatscripts/tmpchat
/usr/sbin/chat -v -f /etc/chatscripts/tmpchat
rm -f /etc/chatscripts/tmpchat
case $? in
0) logger Connection established ; exit 0;;
1) logger chat: exit 1, see manpage for details. ; exit 1;;
2) logger chat: exit 2, see manpage for details. ; exit 2;;
3) logger chat: exit 3, see manpage for details. ;;
4) logger Line busy. ;;
5) logger No Carrier. ;;
6) logger A call is coming. Exiting! ; exit 1;;
7) logger No dialtone. ;;
8) logger An error occured. Exiting! ; exit 1;;
*) logger chat: exit $?, see manpage for details. ;;
esac
logger "Waiting $SLEEP_DELAY seconds before next try."
sleep $SLEEP_DELAY
fi
done
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