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-rw-r--r--cqrlogo.c3
1 files changed, 3 insertions, 0 deletions
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;