Fix exception in flagd.py:FlagServer.handle_close

ctf/flagd.py

@@ -142,6 +142,8 @@ class FlagServer(asynchat.async_chat):
         self.inbuf.append(data)
 
     def set_flag(self, team):
+        if not self.cat:
+            return
         self.flag = team
         self.submitter.set_flag(self.cat, team)
         f = open(os.path.join(flags_dir, self.cat), 'w')

pwnables/Makefile

@@ -18,4 +18,4 @@ target:
 	$(MAKE) -C daemons TARGET=$(TARGET) install
 
 clean:
-	rm -rf target
+	rm -rf target pwnables.tce

pwnables/skel/usr/lib/www/flag

@@ -0,0 +1 @@
+/var/lib/cat/flag