PPPCTL(8)               OpenBSD System Manager's Manual              PPPCTL(8)

NAME
     pppctl - PPP control program



SYNOPSIS
     pppctl [-v] [-t n] [-p passwd] [host:]Port | LocalSocket
     [command[;command]...]

DESCRIPTION
     This program provides command line control of the ppp(8) daemon.  Its
     primary use is to facilitate simple scripts that control a running dae-
     mon.

     Pppctl is passed at least one argument, specifying the socket on which
     ppp is listening.  Refer to the `set server' command of ppp for details.
     If the socket contains a leading '/', it is taken as an AF_LOCAL socket.
     If it contains a colon, it is treated as a host:port pair, otherwise it
     is treated as a TCP port specification on the local machine (127.0.0.1).
     Both the host and port may be specified numerically if you wish to avoid
     a DNS lookup or don't have an entry for the given port in /etc/services.

     All remaining arguments are concatenated to form the command(s) that will
     be sent to the ppp daemon.  If any semi-colon characters are found, they
     are treated as command delimiters, allowing more than one command in a
     given `session'. For example:

           pppctl 3000 set timeout 300\; show timeout

     Don't forget to escape or quote the ';' as it is a special character for
     most shells.

     If no command arguments are given, pppctl enters interactive mode, where
     commands are read from standard input.  When reading commands, the edit-
     line(3) library is used, allowing command-line editing (with editrc(5)
     defining editing behaviour).  The history size defaults to 20 lines.

     The following command line options are available:

     -v      Display all data sent to and received from the ppp daemon.  Nor-
             mally, pppctl displays only non-prompt lines received.  This op-
             tion is ignored in interactive mode.

     -t n    Use a timeout of n instead of the default 2 seconds when connect-
             ing.  This may be required if you wish to control a daemon over a
             slow (or even a dialup) link.

     -p passwd
             Specify the password required by the ppp daemon.  If this switch
             is not used, pppctl will prompt for a password once it has suc-
             cessfully connected to ppp.

EXAMPLES
     If you run ppp in -auto mode, pppctl can be used to automate many fre-
     quent tasks (you can actually control ppp in any mode except interactive
     mode).  Use of the -p option is discouraged (even in scripts that aren't
     readable by others) as a ps(1) listing may reveal your secret.

     The best way to allow easy, secure pppctl access is to create a local
     server socket in /etc/ppp/ppp.conf (in the correct section) like this:

           set server /var/run/internet "" 0177

     This will instruct ppp to create a local domain socket, with srw-------
     permissions and no password, allowing access only to the user that in-
     voked ppp. Refer to the ppp(8) man page for further details.

     You can now create some easy-access scripts.  To connect to the internet:

           #! /bin/sh
           test $# -eq 0 && time=300 || time=$1
           exec pppctl /var/run/internet set timeout $time\; dial

     To disconnect:

           #! /bin/sh
           exec pppctl /var/run/internet set timeout 300\; close

     To check if the line is up:

           #! /bin/sh
           pppctl -p '' -v /var/run/internet quit | grep ^PPP >/dev/null
           if [ $? -eq 0 ]; then
             echo Link is up
           else
             echo Link is down
           fi

     You can even make a generic script:

           #! /bin/sh
           exec pppctl /var/run/internet "$@"

ENVIRONMENT
     The following environment variables are understood by pppctl when in in-
     teractive mode:

     EL_SIZE     The number of history lines.  The default is 20.

     EL_EDITOR   The edit mode.  Only values of "emacs" and "vi" are accepted.
                 Other values are silently ignored.  This environment variable
                 will override the bind -v and bind -e commands in ~/.editrc.

SEE ALSO
     editline(3),  editrc(5),  ppp(8),  ps(1),  services(5)

HISTORY
     The pppctl command first appeared in FreeBSD 2.2.5.

OpenBSD                          26 June 1997                                2