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diff --git a/mariadb-connector-c-v_2.3.7/libmariadb/strnlen.c b/mariadb-connector-c-v_2.3.7/libmariadb/strnlen.c
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+/* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public
+ License as published by the Free Software Foundation; either
+ version 2 of the License, or (at your option) any later version.
+
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with this library; if not, write to the Free
+ Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ MA 02111-1301, USA */
+
+/* File : strnlen.c
+ Author : Michael Widenius
+ Updated: 20 April 1984
+ Defines: strnlen.
+ strnlen(s, len) returns the length of s or len if s is longer than len.
+*/
+
+#include <my_global.h>
+#include "m_string.h"
+
+#ifndef HAVE_STRNLEN
+
+uint strnlen(register const char *s, register uint maxlen)
+{
+ const char *end= (const char *)memchr(s, '\0', maxlen);
+ return end ? (uint) (end - s) : maxlen;
+}
+
+#endif