URL
https://opencores.org/ocsvn/openrisc_me/openrisc_me/trunk
Subversion Repositories openrisc_me
[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.18.0/] [newlib/] [libc/] [string/] [wcslcpy.c] - Rev 262
Go to most recent revision | Compare with Previous | Blame | View Log
/* FUNCTION <<wcslcpy>>---copy a wide-character string to specified length ANSI_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. PORTABILITY No 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 */ }
Go to most recent revision | Compare with Previous | Blame | View Log