From c0fddb06b7609bc67a6678fe1690006da30cd262 Mon Sep 17 00:00:00 2001
From: Conrad Meyer <cem@FreeBSD.org>
Date: Tue, 6 Nov 2018 23:26:09 -0800
Subject: [PATCH] redsnapper: Sanity check the user provided an archive name

---
 bin/redsnapper | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/bin/redsnapper b/bin/redsnapper
index 6fe7ac4..9696de0 100755
--- a/bin/redsnapper
+++ b/bin/redsnapper
@@ -15,4 +15,9 @@ OptionParser.new do |opts|
   end
 end.parse!
 
-RedSnapper.new(ARGV.shift, options.merge(:tarsnap_options => ARGV)).run
+archive = ARGV.shift
+if archive.nil?
+  abort("Missing 'archive' parameter")
+end
+
+RedSnapper.new(archive, options.merge(:tarsnap_options => ARGV)).run