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90 lines
2.2 KiB
90 lines
2.2 KiB
20 years ago
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#!/bin/sh
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#
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# x11vnc_loop:
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#
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# Example startup script for connecting x11vnc to an X display
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# at system boot up and having it reconnect when the X server restarts.
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#
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# Run, in rc.local say, via, e.g.:
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#
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# /path/to/x11vnc_loop 1>> /var/tmp/x11vnc_loop.log 2>&1 &
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#
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# call with argument "once" or a number to limit the number of loops.
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#
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##########################################################################
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# The following needs to be customized:
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x11vnc_cmd=x11vnc # or use full path (or set PATH).
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pwfile=/path/to/vnc/passwd # always use a password
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display=:0 # display of interest
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restart_sleep=5 # pause between X server restarts.
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# modify cmdline args if desired:
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x11vnc_args="-display $display -rfbauth $pwfile -forever -nap"
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# you may need to customize the "grep", etc, below in get_xauthority_file()
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##########################################################################
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if [ "X$1" != "X" ]; then
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max=$1
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shift
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fi
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get_xauthority_file() {
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#
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# We need to find the MIT-COOKIE file... this not portable at all,
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# depends on OS, distro, desktop, phase of moon, etc...
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#
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# If the cookie file was fixed and you knew it, you could just
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# return it here e.g.:
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#
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## echo "/var/gdm/:0.Xauth"; return
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#
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# or, if you knew the directory, you could look for the youngest
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# file there and return it e.g.:
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#
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## echo `ls -t /var/lib/xdm/authdir/authfiles/* | head -1`; return
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# this hack tries to grep it out of ps output...
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xauth=""
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for i in 1 2 3
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do
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# very linux specific, and you likely need to tweak..
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patt="X11R6.*/X.*-auth"
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xauth=`ps wwwaux | grep "$patt" \
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| egrep -v 'grep|Xprt' | head -1 \
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| sed -e 's/^.*-auth//' | awk '{print $1}'`
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if [ "X$xauth" != "X" ]; then
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break
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fi
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sleep 2 # wait a bit in case X server is restarting slowly.
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done
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echo $xauth
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}
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try=1
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while [ 1 ]
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do
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echo "`date` $0 try number: $try"; try=`expr $try + 1`
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auth=`get_xauthority_file`
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if [ ! -r "$auth" ]; then
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echo "`date` bad auth file: \"$auth\""
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else
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cmd="$x11vnc_cmd $x11vnc_args"
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sleep 1
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echo "`date` running: $cmd -auth $auth"
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# run x11vnc:
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$cmd -auth $auth
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if [ "X$max" = "Xonce" ]; then
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exit $?
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fi
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fi
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if echo "$max" | grep '[0-9]' > /dev/null; then
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if [ $try -gt $max ]; then
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exit
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fi
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fi
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sleep $restart_sleep
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done
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