sudo chmod 660 $TTY
sudo chown $USER.tty $TTY
-# FIXME: fix for screen race-conditions
-PID_FILE_="/var/lock/grml-screen"
-PID_FILE_CREATED_="false"
-MY_PID_="$$"
-if [ ! -d "/var/run/screen/S-$USER" ]; then
- # no /var/run/screen/S-$USER and possible no /var/run/screen either -> locking
- for i in `seq 40`; do # 40*0.25 = 10 seconds
- if lockfile-create --retry 0 $PID_FILE_; then
- echo $MY_PID_ >$PID_FILE_
- PID_FILE_CREATED_="true"
- break
- else
- PID_FILE_CREATED_="error"
- fi
- sleep 0.25
- done
-fi
-if [ $PID_FILE_CREATED_ = "true" ]; then
- # FORK BEGIN
- (
- for i in `seq 40`; do # 40*0.25 = 10 seconds
- if [ ! -d "/var/run/screen/S-$USER" ]; then
- sleep 0.25 # educated guess
- else
- break
- fi
- done
- if [ `cat $PID_FILE_` = $MY_PID_ ]; then
- rm $PID_FILE_
- lockfile-remove $PID_FILE_
- fi
- )&
- # FORK END
-elif [ $PID_FILE_CREATED_ = "error" ]; then
- SLEEP_TIME_="$(( $$ % 5 * 5 + 5 ))"
- echo "grml-screen: Error could not create lockfile! (sleeping for $SLEEP_TIME_)" >&2
- sleep $SLEEP_TIME_
-elif [ $PID_FILE_CREATED_ = "false" ]; then
- echo "nothing to do" &>/dev/null
-else
- echo "grml-screen: internal error - PID_FILE_CREATED_ == \"$PID_FILE_CREATED_\"" >&2
+# try to mitigate raceconditions from screen
+SCREENDIR_="/var/run/screen"
+if [ `id -u` = 0 ] ; then
+ mkdir -m 755 $SCREENDIR_
+ chgrp utmp $SCREENDIR_
fi
+mkdir -m 700 "${SCREENDIR_}/S-$USER" &>/dev/null
# now run screen with config
cd $HOME # important for e.g. hardcopy-feature