ccnping: add daemon capabilities
diff --git a/net/ccnping/Portfile b/net/ccnping/Portfile
index 584cad9..2ea20b9 100644
--- a/net/ccnping/Portfile
+++ b/net/ccnping/Portfile
@@ -37,14 +37,21 @@
 
 destroot {
     system "echo /ndn/`hostname` > ${ccnxdir}/ccnpingserver.conf.example"
-    xinstall -W ${worksrcpath} ccnping ccnpingserver ${destroot}${prefix}/bin/
+    xinstall -W ${worksrcpath} ccnping ccnpingserver ccnpingserver-wrapper ${destroot}${prefix}/bin/
 }
 
-patchfiles          patch-Makefile.diff
+patchfiles          patch-Makefile.diff \
+                    patch-wrapper.diff
 
 notes "
-ccnpingserver is usually run on a hub.  For example, on Arizona hub, ccnpingserver 
-is started by running \[ccnpingserver /ndn/arizona.edu\]. Then we can run 
-\[ccnping /ndn/arizona.edu\] from other nodes to test connectivity towards name 
-prefix /ndn/arizona.edu.
+ccnpingserver needs a local prefix to be configured in ${ccnxdir}/ccnpingserver.conf
+configuration file.  This file should contain just one line with local prefix, for example: /ndn/ucla.edu
 "
+
+startupitem.executable  "${prefix}/bin/ccnpingserver-wrapper"
+
+startupitem.create      yes
+startupitem.name        ${name}
+
+startupitem.netchange   no
+startupitem.logevents   no
diff --git a/net/ccnping/files/patch-wrapper.diff b/net/ccnping/files/patch-wrapper.diff
new file mode 100644
index 0000000..5e68729
--- /dev/null
+++ b/net/ccnping/files/patch-wrapper.diff
@@ -0,0 +1,19 @@
+diff --git ccnpingserver-wrapper ccnpingserver-wrapper
+new file mode 100755
+index 0000000..c0993c8
+--- /dev/null
++++ ccnpingserver-wrapper
+@@ -0,0 +1,13 @@
++#!/bin/sh
++
++# This script should be installed in the same place as ccnd, ccndc, ccndsmoketest, ...
++# adjust the path to get consistency.
++D=`dirname "$0"`
++export PATH="$D:$PATH"
++
++if [ ! -f "$D/../etc/ccnx/ccnpingserver.conf" ]; then
++	sleep 100
++else
++	su - ccnx -c "$D/ccnpingserver `cat $D/../etc/ccnx/ccnpingserver.conf | xargs`"
++fi
++