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/* Copyright (C) 1995 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C 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.
The GNU C 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 the GNU C Library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
#include <mbstr.h>
#include <stdlib.h>
/* Append no more than N multi-byte characters from SRC onto DEST. */
char *
mbsncat (dest, src, n)
char *dest;
const char *src;
size_t n;
{
const char * const d = dest;
const char * const s = src;
size_t len = 0;
int clen = 0;
if (n == 0)
return (char *) d;
/* Reset multibyte characters to their initial state. */
(void) mblen ((char *) NULL, 0);
do
{
dest += clen;
clen = mblen (dest, MB_CUR_MAX);
}
while (clen > 0);
clen = 0;
do
{
src += clen;
clen = mblen (src, MB_CUR_MAX);
}
while (clen > 0 && ++len < n);
(void) memcpy ((void *) dest, (void *) s, src - s);
dest[src - s] = '\0'; /* '\0' is the multibyte representation of L'\0' */
return (char *) d;
}
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