1 files changed, 36 insertions, 0 deletions
diff --git a/strings/strnlen.c b/strings/strnlen.c
new file mode 100644
index 00000000000..6eb872ee08d
--- /dev/null
+++ b/strings/strnlen.c
@@ -0,0 +1,36 @@
+/* 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., 59 Temple Place - Suite 330, Boston,
+   MA 02111-1307, 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 <global.h>
+#include "m_string.h"
+
+#ifndef HAVE_STRNLEN
+
+uint strnlen(register const char *s, register uint maxlen)
+{
+  const char *end= memchr(s, '\0', maxlen);
+  return end ? (uint) (end - s) : maxlen;
+}
+
+#endif