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-rw-r--r--mysql/strings/my_stpnmov.c33
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diff --git a/mysql/strings/my_stpnmov.c b/mysql/strings/my_stpnmov.c
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+/* Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; version 2 of the License.
+
+ This program 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 General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
+
+/*
+ my_stpnmov(dst,src,length) moves length characters, or until end, of src to
+ dst and appends a closing NUL to dst if src is shorter than length.
+ The result is a pointer to the first NUL in dst, or is dst+n if dst was
+ truncated.
+*/
+
+#include "m_string.h"
+
+char *my_stpnmov(char *dst, const char *src, size_t n)
+{
+ while (n-- != 0) {
+ if (!(*dst++ = *src++)) {
+ return (char*) dst-1;
+ }
+ }
+ return dst;
+}