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Annotation of embedaddon/hping2/strlcpy.c, revision 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__ */