Script for oppslag i DNS etter radsec-tjenere for realm

git-svn-id: https://svn.testnett.uninett.no/radsecproxy/trunk@469 e88ac4ed-0b26-0410-9574-a7f39faa03bf

diff --git a/radsec-dynsrv.sh b/radsec-dynsrv.sh
new file mode 100755 (executable)
index 0000000..c4c920c
--- /dev/null
+++ b/radsec-dynsrv.sh
@@ -0,0 +1,49 @@
+#! /bin/sh
+
+# Example script!
+# This script looks up radsec srv records in DNS for the one
+# realm given as argument, and creates a server template based
+# on that. It currently ignores any weight or priority markers.
+
+usage() {
+   echo "Usage: ${0} <realm>"
+   exit 1
+}
+
+test -n "${1}" || usage
+
+REALM="${1}"
+DIGCMD=$(command -v dig)
+HOSTCMD=$(command -v host)
+
+dig_it() {
+   ${DIGCMD} +short srv _radsec._tcp.${REALM} |
+   while read line ; do
+      set $line ; PORT=$3 ; HOST=$4 
+      echo "\thost ${HOST%.}:${PORT}"
+   done
+}
+
+host_it() {
+   ${HOSTCMD} -t srv _radsec._tcp.${REALM} |
+   while read line ; do
+      set $line ; PORT=$7 ; HOST=$8 
+      echo "\thost ${HOST%.}:${PORT}"
+   done
+}
+
+if test -x "${DIGCMD}" ; then
+   SERVERS=$(dig_it)
+elif test -x "${HOSTCMD}" ; then
+   SERVERS=$(host_it)
+else
+   echo "${0} requires either \"dig\" or \"host\" command."
+   exit 1
+fi
+
+if test -n "${SERVERS}" ; then
+        echo "server radsec.${REALM} {\n${SERVERS}\n\ttype TLS\n}"
+        exit 0
+fi
+
+exit 0