[Xen-changelog] Script and xdm config to connect vnc in a domain back to

[BitKeeper Bot <riel@xxxxxxxxxxx>]

ChangeSet 1.1775.1.8, 2005/03/18 10:52:26+00:00, mjw@xxxxxxxxxxxxxxxxxxx

        Script and xdm config to connect vnc in a domain back to
        a viewer running in domain-0.
        
        Signed-off-by: Mike Wray <mike.wray@xxxxxx>



 Xservers |    5 +++++
 Xvnc-xen |   53 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 58 insertions(+)


diff -Nru a/tools/examples/vnc/Xservers b/tools/examples/vnc/Xservers
--- /dev/null   Wed Dec 31 16:00:00 196900
+++ b/tools/examples/vnc/Xservers       2005-03-25 07:09:05 -05:00
@@ -0,0 +1,5 @@
+# Configuration lines to go in /etc/X11/xdm/Xservers to
+# start Xvnc and connect back to a vncviewer in domain-0.
+# See 'man xdm' under 'LOCAL SERVER SPECIFICATION' for format details.
+
+:1 Xvnc local /usr/X11R6/bin/Xvnc-xen :1
\ No newline at end of file
diff -Nru a/tools/examples/vnc/Xvnc-xen b/tools/examples/vnc/Xvnc-xen
--- /dev/null   Wed Dec 31 16:00:00 196900
+++ b/tools/examples/vnc/Xvnc-xen       2005-03-25 07:09:05 -05:00
@@ -0,0 +1,53 @@
+#!/bin/bash
+#============================================================================
+# This script should be installed in /usr/X11R6/bin/Xvnc-xen.
+#============================================================================
+#
+# Start Xvnc and use vncconnect to connect back to a vncviewer listening in
+# domain 0. The host and port to connect to are given by
+#
+#    VNC_VIEWER=<host>:<port>
+#
+# in the kernel command line (/proc/cmdline). 
+#
+# The '--vnc' option to 'xm create' will start a vncviewer and
+# pass its address in VNC_VIEWER for this script to find.
+#
+# Usage:
+#        Xvnc-xen [args]
+#
+# Any arguments are passed to Xvnc.
+#
+#============================================================================
+
+# Prefix for messages.
+M="[$(basename $0)]"
+
+# Usage: vnc_addr
+# Print <host>:<port> for the vncviewer given in
+# the kernel command line.
+vnc_addr () {
+    sed -n -e "s/.*VNC_VIEWER=\([^ ]*\).*/\1/p" /proc/cmdline
+}
+
+# Usage: vnc_connect
+# If a vncviewer address was given on the kernel command line,
+# run vncconnect for it.
+vnc_connect () {
+    local addr=$(vnc_addr)
+
+    if [ -n "${addr}" ] ; then
+        echo "$M Connecting to ${addr}."
+        vncconnect ${addr}
+    else
+        echo "$M No VNC_VIEWER in kernel command line."
+        echo "$M Create the domain with 'xm create --vnc <display>'."
+        return 1
+    fi
+}
+
+# Start the vnc server.
+Xvnc "$@" >/dev/null 2>&1 &
+
+# Connect back to the viewer in domain-0.
+vnc_connect


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