added system tests

bin/tests/system/start.sh

@@ -0,0 +1,30 @@
+#!/bin/sh
+#
+# Start name servers for running system tests.
+#
+
+cd $1
+
+for d in ns*
+do
+    (
+        cd $d &&
+	rm -f *.jnl *.bk named.run &&
+	if test -f named.pid
+	then
+	    if kill -0 `cat named.pid` 2>/dev/null
+	    then
+		echo "$0: named pid `cat named.pid` still running" >&2
+	        exit 1
+	    else
+		rm -f named.pid
+	    fi
+	fi
+	$NAMED -c named.conf -d 99 -g >named.run 2>&1 & &&
+	while test ! -f named.pid
+	do
+	    sleep 1
+        done
+    )
+done
+