/*FUNCTION	<<wcslcpy>>---copy a wide-character string to specified lengthANSI_SYNOPSIS	#include <wchar.h>	size_t wcslcpy(wchar_t *<[dst]>, const wchar_t *<[src]>, size_t <[siz]>);TRAD_SYNOPSIS	#include <wchar.h>	size_t wcslcpy(<[dst]>, <[src]>, <[siz]>)	wchar_t *<[dst]>;	const wchar_t *<[src]>;	size_t <[siz]>;DESCRIPTION	<<wcslcpy>> copies wide-characters from <[src]> to <[dst]>	such that up to <[siz]> - 1 characters are copied.  A	terminating null is appended to the result, unless <[siz]>	is zero.RETURNS	<<wcslcpy>> returns the number of wide-characters in <[src]>,	not including the terminating null wide-character.  If the	return value is greater than or equal to <[siz]>, then	not all wide-characters were copied from <[src]> and truncation	occurred.PORTABILITYNo supporting OS subroutines are required.*//*	$NetBSD: wcslcpy.c,v 1.1 2000/12/23 23:14:36 itojun Exp $	*//*	from OpenBSD: strlcpy.c,v 1.4 1999/05/01 18:56:41 millert Exp 	*//* * Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com> * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright *    notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright *    notice, this list of conditions and the following disclaimer in the *    documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products *    derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */#include <_ansi.h>#include <wchar.h>/* * Copy src to string dst of size siz.  At most siz-1 characters * will be copied.  Always NUL terminates (unless siz == 0). * Returns wcslen(src); if retval >= siz, truncation occurred. */size_t_DEFUN (wcslcpy, (dst, src, siz),	wchar_t * dst _AND	_CONST wchar_t * src _AND	size_t siz){  wchar_t *d = dst;  _CONST wchar_t *s = src;  size_t n = siz;  /* Copy as many bytes as will fit */  if (n != 0 && --n != 0)    {      do	{	  if ((*d++ = *s++) == 0)	    break;	}      while (--n != 0);    }  /* Not enough room in dst, add NUL and traverse rest of src */  if (n == 0)    {      if (siz != 0)	*d = '\0';		/* NUL-terminate dst */      while (*s++)	;    }  return (s - src - 1);		/* count does not include NUL */}