diff options
Diffstat (limited to 'x11vnc/misc/x11vnc_loop')
| -rwxr-xr-x | x11vnc/misc/x11vnc_loop | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/x11vnc/misc/x11vnc_loop b/x11vnc/misc/x11vnc_loop new file mode 100755 index 0000000..1a3e0a2 --- /dev/null +++ b/x11vnc/misc/x11vnc_loop @@ -0,0 +1,89 @@ +#!/bin/sh +# +# x11vnc_loop: +# +# Example startup script for connecting x11vnc to an X display +# at system boot up and having it reconnect when the X server restarts. +# +# Run, in rc.local say, via, e.g.: +# +# /path/to/x11vnc_loop 1>> /var/tmp/x11vnc_loop.log 2>&1 & +# +# call with argument "once" or a number to limit the number of loops. +# +########################################################################## +# The following needs to be customized: +x11vnc_cmd=x11vnc # or use full path (or set PATH). +pwfile=/path/to/vnc/passwd # always use a password +display=:0 # display of interest +restart_sleep=5 # pause between X server restarts. + +# modify cmdline args if desired: +x11vnc_args="-display $display -rfbauth $pwfile -forever -nap" + +# you may need to customize the "grep", etc, below in get_xauthority_file() +########################################################################## + +if [ "X$1" != "X" ]; then + max=$1 + shift +fi + +get_xauthority_file() { + # + # We need to find the MIT-COOKIE file... this not portable at all, + # depends on OS, distro, desktop, phase of moon, etc... + # + # If the cookie file was fixed and you knew it, you could just + # return it here e.g.: + # + ## echo "/var/gdm/:0.Xauth"; return + # + # or, if you knew the directory, you could look for the youngest + # file there and return it e.g.: + # + ## echo `ls -t /var/lib/xdm/authdir/authfiles/* | head -1`; return + + # this hack tries to grep it out of ps output... + xauth="" + for i in 1 2 3 + do + # very linux specific, and you likely need to tweak.. + patt="X11R6.*/X.*-auth" + xauth=`ps wwwaux | grep "$patt" \ + | egrep -v 'grep|Xprt' | head -1 \ + | sed -e 's/^.*-auth//' | awk '{print $1}'` + + if [ "X$xauth" != "X" ]; then + break + fi + sleep 2 # wait a bit in case X server is restarting slowly. + done + echo $xauth +} + +try=1 +while [ 1 ] +do + echo "`date` $0 try number: $try"; try=`expr $try + 1` + + auth=`get_xauthority_file` + if [ ! -r "$auth" ]; then + echo "`date` bad auth file: \"$auth\"" + else + cmd="$x11vnc_cmd $x11vnc_args" + sleep 1 + echo "`date` running: $cmd -auth $auth" + # run x11vnc: + $cmd -auth $auth + if [ "X$max" = "Xonce" ]; then + exit $? + fi + fi + if echo "$max" | grep '[0-9]' > /dev/null; then + if [ $try -gt $max ]; then + exit + fi + fi + sleep $restart_sleep +done |