From 59fe8c2ad88208d1aa5fb74a5a0869a8d0fa117f Mon Sep 17 00:00:00 2001
From: Marcus Downing <marcus@bang-on.net>
Date: Wed, 10 Jan 2018 13:57:10 +0000
Subject: [PATCH] Error on unknown batch format

---
 spectre-meltdown-checker.sh | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/spectre-meltdown-checker.sh b/spectre-meltdown-checker.sh
index 60af68d..c0a5eba 100755
--- a/spectre-meltdown-checker.sh
+++ b/spectre-meltdown-checker.sh
@@ -244,6 +244,13 @@ while [ -n "$1" ]; do
 		shift
 		case "$1" in
 			text|nrpe) opt_batch_format="$1"; shift;;
+			--*) ;;    # allow subsequent flags
+			'') ;;     # allow nothing at all
+			*)
+				echo "$0: error: unknown batch format '$1'"
+				echo "$0: error: --batch expects a format from: text, nrpe"
+				exit 1 >&2
+				;;
 		esac
 	elif [ "$1" = "-v" -o "$1" = "--verbose" ]; then
 		opt_verbose=$(expr $opt_verbose + 1)