From 0fb86f66f72b6b3e85f14bb70f258640b1dcdfb3 Mon Sep 17 00:00:00 2001
From: Patrick McDermott <patrick.mcdermott@libiquity.com>
Date: Sun, 22 Aug 2021 19:52:03 -0400
Subject: bin/bright: Keep within range

---
diff --git a/bin/bright b/bin/bright
index 7aa0801..87126e1 100755
--- a/bin/bright
+++ b/bin/bright
@@ -54,7 +54,12 @@ main()
 	esac
 
 	b=$(get_b) || return 1
-	set_b $((${b} ${dir} 1)) || return 1
+	: $((b += 1))
+	: $((b ${dir}= 1))
+	[ ${b} -gt 8 ] && b=8
+	[ ${b} -lt 1 ] && b=1
+	: $((b -= 1))
+	set_b ${b} || return 1
 
 	return 0
 }
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