From: Remi Gacogne <remi.gacogne@powerdns.com>
Date: Thu, 12 Oct 2017 15:32:52 +0000 (+0200)
Subject: auth: Display the needed size when a MySQL result was truncated
X-Git-Tag: rec-4.1.0-rc2~41^2
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=refs%2Fpull%2F5820%2Fhead;p=thirdparty%2Fpdns.git

auth: Display the needed size when a MySQL result was truncated
---

diff --git a/modules/gmysqlbackend/smysql.cc b/modules/gmysqlbackend/smysql.cc
index 5e9354254a..aab16daf9d 100644
--- a/modules/gmysqlbackend/smysql.cc
+++ b/modules/gmysqlbackend/smysql.cc
@@ -233,8 +233,8 @@ public:
     row.reserve(d_fnum);
 
     for(int i=0;i<d_fnum;i++) {
-      if (*d_res_bind[i].error) {
-        L<<Logger::Warning<<"Result field at row " << d_residx << " column " << i << " has errno " << *d_res_bind[i].error << endl;
+      if (err == MYSQL_DATA_TRUNCATED && *d_res_bind[i].error) {
+        L<<Logger::Warning<<"Result field at row " << d_residx << " column " << i << " has been truncated, we allocated " << d_res_bind[i].buffer_length << " bytes but at least " << *d_res_bind[i].length << " was needed" << endl;
       }
       if (*d_res_bind[i].is_null) {
         row.push_back("");