From de222eb1663a5263afd02f4eeb38ce43749442da Mon Sep 17 00:00:00 2001
From: Christian Hesse <mail@eworm.de>
Date: Fri, 12 Jul 2013 08:16:00 +0200
Subject: add commit about error condition

---
 cqrlogo.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/cqrlogo.c b/cqrlogo.c
index c566cd7..927b5c3 100644
--- a/cqrlogo.c
+++ b/cqrlogo.c
@@ -128,6 +128,9 @@ struct bitmap_t * encode_qrcode (char *text, unsigned int scale, unsigned int bo
        
        qrcode = QRcode_encodeString8bit(text, 0, level);
 
+       /* this happens if the string is too long
+	* possibly we have an URL (referer) that is too long, so the code
+	* automatically falls back to http_server (see main()) */
        if (qrcode == NULL)
                return NULL;
 
-- 
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