release/src/router/pppd/scripts/redialer

   1 #!/bin/sh
   2 ###################################################################
   3 #
   4 # These parameters control the attack dialing sequence.
   5 #
   6 # Maximum number of attempts to reach the telephone number(s)
   7 MAX_ATTEMPTS=10
   8
   9 # Delay between each of the attempts. This is a parameter to sleep
  10 # so use "15s" for 15 seconds, "1m" for 1 minute, etc.
  11 SLEEP_DELAY=15s
  12
  13 ###################################################################
  14 #
  15 # This is a list of telephone numbers. Add new numbers if you wish
  16 # and see the function 'callall' below for the dial process.
  17 PHONE1=555-1212
  18 PHONE2=411
  19
  20 ###################################################################
  21 #
  22 # If you use the ppp-on script, then these are passed to this routine
  23 # automatically. There is no need to define them here. If not, then
  24 # you will need to set the values.
  25 #
  26 ACCOUNT=my_account_name
  27 PASSWORD=my_password
  28
  29 ###################################################################
  30 #
  31 # Function to initialize the modem and ensure that it is in command
  32 # state. This may not be needed, but it doesn't hurt.
  33 #
  34 function initialize
  35 {
  36     chat -v TIMEOUT 3 '' AT 'OK-+++\c-OK'
  37     return
  38 }
  39
  40 ###################################################################
  41 #
  42 # Script to dial a telephone
  43 #
  44 function callnumber
  45 {
  46 chat -v                                                 \
  47         ABORT           '\nBUSY\r'                      \
  48         ABORT           '\nNO ANSWER\r'                 \
  49         ABORT           '\nRINGING\r\n\r\nRINGING\r'    \
  50         ''              ATDT$1                          \
  51         CONNECT         ''                              \
  52         ogin:--ogin:    $ACCOUNT                        \
  53         assword:        $PASSWORD
  54 #
  55 # If the connection was successful then end the whole script with a
  56 # success.
  57 #
  58     if [ "$?" = "0" ]; then
  59        exit 0
  60     fi
  61
  62     return
  63 }
  64
  65 ###################################################################
  66 #
  67 # Script to dial any telephone number
  68 #
  69 function callall
  70 {
  71 #   echo "dialing attempt number: $1" >/dev/console
  72     callnumber $PHONE1
  73 #    callnumber $PHONE2
  74 }
  75
  76 ###################################################################
  77 #
  78 # Initialize the modem to ensure that it is in the command state
  79 #
  80 initialize
  81 if [ ! "$?" = "0" ]; then
  82    exit 1
  83 fi
  84
  85 #
  86 # Dial telephone numbers until one answers
  87 #
  88 attempt=0
  89 while : ; do
  90     attempt=`expr $attempt + 1`
  91     callall $attempt
  92     if [ "$attempt" = "$MAX_ATTEMPTS" ]; then
  93         exit 1
  94     fi
  95     sleep "$SLEEP_DELAY"
  96 done