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Annotation of embedaddon/hping2/strlcpy.c, revision 1.1.1.1

1.1       misho       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 1.5 2003/07/28 09:00:55 njombart 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__ */