From fed04b3a641b8d82bd29fd9d8169053ffdfc8418 Mon Sep 17 00:00:00 2001
From: Daniel Friesel <derf@derf.homelinux.org>
Date: Sun, 8 Mar 2009 12:30:09 +0100
Subject: A little bit input validation

---
 bin/efa | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/bin/efa b/bin/efa
index d9bc5ed..51e7c8a 100755
--- a/bin/efa
+++ b/bin/efa
@@ -39,6 +39,11 @@ GetOptions(
 	'debug'     => \$debug,
 );
 
+unless (@to == 2 and @from == 2) {
+	print STDERR "Usage: efa --from <city> <stop> --to <city> <stop> [other options]\n";
+	exit(1);
+}
+
 @post{'place_origin','name_origin'} = @from;
 @post{'place_destination','name_destination'} = @to;
 
-- 
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