d397408818
Also change one case of blatant __progname abuse (several more remain)
This commit does not touch anything in src/{contrib,crypto,gnu}/.
112 lines
2.4 KiB
Bash
112 lines
2.4 KiB
Bash
#!/bin/sh
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# isdnctl
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# Control the ISDN line based on usage
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#
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# This script can control the state of your ISDN line. It counts
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# how many scripts/users currently use the ISDN line and uses
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# "ifconfig down" if noone uses it any more.
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# I use this script for cronjobs that fetch mail and news and run cvsup.
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# If I'm still using the line, the script won't close the connection,
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# but if not, it saves a lot of phone costs.
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#
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# ----------------------------------------------------------------------------
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# "THE BEER-WARE LICENSE" (Revision 42, (c) Poul-Henning Kamp):
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# Alexander Langer <alex@big.endian.de> wrote this file. As long as you retain
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# this notice you can do whatever you want with this stuff. If we meet some
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# day, and you think this stuff is worth it, you can buy me a beer in return.
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#
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# Alexander Langer
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# ----------------------------------------------------------------------------
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#
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# $FreeBSD$
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#
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usage () {
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echo "usage: $0 [-i interface] [-f /path/to/users.file] [up|down|show]"
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}
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# Defaults
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INTERFACE=isp0
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USERSFILE=
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# Getopt stuff
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args=`getopt i:f: $*`
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if [ $? != 0 ]; then
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usage
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exit 2
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fi
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set -- $args
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for i; do
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case "$i" in
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-i)
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INTERFACE="$2"
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shift; shift
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;;
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-f)
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USERSFILE="$2"
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shift; shift
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;;
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--)
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shift
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break
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;;
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esac
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done
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if [ -z $USERSFILE ]; then
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USERSFILE=/var/run/isdn.users.$INTERFACE
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fi
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if [ -z $1 ]; then
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usage
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exit 2
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fi
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# Does Usersfile exist?
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if [ ! -f $USERSFILE ]; then
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# Try to create it
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if ! /sbin/ifconfig $INTERFACE | grep "^$INTERFACE.*<UP," > /dev/null; then
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echo "0" > $USERSFILE || exit 1
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else
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echo "1" > $USERSFILE || exit 1
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fi
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elif [ ! -w $USERSFILE ]; then
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echo "Error: $USERSFILE not writeable!"
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exit 1
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fi
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if ! /sbin/ifconfig $INTERFACE | grep "^$INTERFACE.*<UP," > /dev/null; then
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if ! cat $USERSFILE | grep '^0$' > /dev/null ; then
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echo "Interface down, removing number from file";
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echo "0" > $USERSFILE
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fi;
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fi;
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case "$1" in
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show)
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echo "`cat $USERSFILE` users online"
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;;
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up)
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expr `cat $USERSFILE` + 1 > $USERSFILE
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/sbin/ifconfig $INTERFACE up
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echo "`cat $USERSFILE` users online"
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;;
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down)
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if cat $USERSFILE | grep '^0$' > /dev/null ; then
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echo "Already down"
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exit 0
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fi
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expr `cat $USERSFILE` - 1 > $USERSFILE
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if cat $USERSFILE | grep '^0$' > /dev/null ; then
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echo "`cat $USERSFILE` users online, interface down"
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/sbin/ifconfig $INTERFACE down
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exit 0
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fi
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echo "`cat $USERSFILE` users online"
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;;
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esac
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exit 0
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