From db7a6684a1212f8a900b1a07bb2e9c4c87cd9586 Mon Sep 17 00:00:00 2001
From: Kaz Kylheku <kaz@kylheku.com>
Date: Sat, 12 Sep 2015 23:00:15 -0700
Subject: linenoise: Suppress unknown control characters.

* linenoise/linenoise.c (edit): Don't let characters
less than 32 be inserted.

* txr.1: Documented that control characters are rejected.
---
 linenoise/linenoise.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'linenoise/linenoise.c')

diff --git a/linenoise/linenoise.c b/linenoise/linenoise.c
index 47d1754e..ffbd38e4 100644
--- a/linenoise/linenoise.c
+++ b/linenoise/linenoise.c
@@ -1030,6 +1030,8 @@ static int edit(lino_t *l, const char *prompt)
             }
             break;
         default:
+            if (c < 32)
+                break;
             if (edit_insert(l,c)) {
                 l->error = lino_ioerr;
                 return -1;
-- 
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