From 58398bc754b4843218f120a3d112930f157275d0 Mon Sep 17 00:00:00 2001
From: Robin Stuart <rstuart114@gmail.com>
Date: Thu, 5 Jul 2018 21:45:11 +0100
Subject: [PATCH] Enforce length of GSRN

Fixes #115 reported by Daniel Gredler
---
 backend/gs1.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/backend/gs1.c b/backend/gs1.c
index 203fc787..1300bea8 100644
--- a/backend/gs1.c
+++ b/backend/gs1.c
@@ -286,8 +286,6 @@ int gs1_verify(struct zint_symbol *symbol, const unsigned char source[], const s
                 
             // Length 17 Fixed
             case 402: // GSIN
-            case 8017: // GSRN PROVIDER
-            case 8018: // GSRN RECIPIENT
                 if (data_length[i] != 17) {
                     error_latch = 1;
                 } else {
@@ -298,6 +296,8 @@ int gs1_verify(struct zint_symbol *symbol, const unsigned char source[], const s
             // Length 18 Fixed
             case 0: // SSCC
             case 8006: // ITIP
+            case 8017: // GSRN PROVIDER
+            case 8018: // GSRN RECIPIENT
                 if (data_length[i] != 18) {
                     error_latch = 1;
                 } else {