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    1: /* 
    2:  * $smu-mark$ 
    3:  * $name: strLcpy.c$ 
    4:  * $author: Nicolas Jombart <ecureuil@hsc.fr>$ 
    5:  * $copyright: Copyright (C) 1999 by Salvatore Sanfilippo$
    6:  * *copyright: (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>$ 
    7:  * $license: This software is under GPL version 2 of license$ 
    8:  * $date: Wed Feb 13 17:02:32 CET 2002$ 
    9:  * $rev:$ 
   10:  */ 
   11: 
   12: /*      $OpenBSD: strlcpy.c,v 1.4 1999/05/01 18:56:41 millert Exp $     */
   13: 
   14: /*
   15:  * Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
   16:  * All rights reserved.
   17:  *
   18:  * Redistribution and use in source and binary forms, with or without
   19:  * modification, are permitted provided that the following conditions
   20:  * are met:
   21:  * 1. Redistributions of source code must retain the above copyright
   22:  *    notice, this list of conditions and the following disclaimer.
   23:  * 2. Redistributions in binary form must reproduce the above copyright
   24:  *    notice, this list of conditions and the following disclaimer in the
   25:  *    documentation and/or other materials provided with the distribution.
   26:  * 3. The name of the author may not be used to endorse or promote products
   27:  *    derived from this software without specific prior written permission.
   28:  *
   29:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
   30:  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
   31:  * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
   32:  * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
   33:  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
   34:  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
   35:  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
   36:  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
   37:  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
   38:  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   39:  */
   40: 
   41: /* $Id: strlcpy.c,v 1.1.1.1 2012/02/21 22:11:37 misho Exp $ */
   42: 
   43: /* This function comes from BSD */
   44: #if !defined(__FreeBSD__) && !defined(__OpenBSD__) && !defined(__NetBSD__) && \
   45:     !defined(__bsdi__) && !defined(__APPLE__)
   46: #include <sys/types.h>
   47: #include <string.h>
   48: 
   49: /*
   50:  * Copy src to string dst of size siz.  At most siz-1 characters
   51:  * will be copied.  Always NUL terminates (unless siz == 0).
   52:  * Returns strlen(src); if retval >= siz, truncation occurred.
   53:  */
   54: size_t strlcpy(dst, src, siz)
   55:         char *dst;
   56:         const char *src;
   57:         size_t siz;
   58: {
   59:         register char *d = dst;
   60:         register const char *s = src;
   61:         register size_t n = siz;
   62: 
   63:         /* Copy as many bytes as will fit */
   64:         if (n != 0 && --n != 0) {
   65:                 do {
   66:                         if ((*d++ = *s++) == 0)
   67:                                 break;
   68:                 } while (--n != 0);
   69:         }
   70: 
   71:         /* Not enough room in dst, add NUL and traverse rest of src */
   72:         if (n == 0) {
   73:                 if (siz != 0)
   74:                         *d = '\0';              /* NUL-terminate dst */
   75:                 while (*s++)
   76:                         ;
   77:         }
   78: 
   79:         return(s - src - 1);    /* count does not include NUL */
   80: }
   81: 
   82: #endif /* ! __*BSD__ */