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-rw-r--r--mysql/strings/strxnmov.c64
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diff --git a/mysql/strings/strxnmov.c b/mysql/strings/strxnmov.c
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+/* Copyright (c) 2000-2002, 2005-2007 MySQL AB
+ Use is subject to license terms.
+
+ 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; version 2
+ of the License.
+
+ 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 St, Fifth Floor, Boston,
+ MA 02110-1301, USA */
+
+/* File : strxnmov.c
+ Author : Richard A. O'Keefe.
+ Updated: 2 June 1984
+ Defines: strxnmov()
+
+ strxnmov(dst, len, src1, ..., srcn, NullS)
+ moves the first len characters of the concatenation of src1,...,srcn
+ to dst and add a closing NUL character.
+ It is just like strnmov except that it concatenates multiple sources.
+ Beware: the last argument should be the null character pointer.
+ Take VERY great care not to omit it! Also be careful to use NullS
+ and NOT to use 0, as on some machines 0 is not the same size as a
+ character pointer, or not the same bit pattern as NullS.
+
+ NOTE
+ strxnmov is like strnmov in that it moves up to len
+ characters; dst will be padded on the right with one '\0' character.
+ if total-string-length >= length then dst[length] will be set to \0
+*/
+
+#include <my_global.h>
+#include "m_string.h"
+#include <stdarg.h>
+
+char *strxnmov(char *dst, size_t len, const char *src, ...)
+{
+ va_list pvar;
+ char *end_of_dst=dst+len;
+
+ va_start(pvar,src);
+ while (src != NullS)
+ {
+ do
+ {
+ if (dst == end_of_dst)
+ goto end;
+ }
+ while ((*dst++ = *src++));
+ dst--;
+ src = va_arg(pvar, char *);
+ }
+end:
+ *dst=0;
+ va_end(pvar);
+ return dst;
+}