[BACK]Return to strlcpy.c CVS log [TXT][DIR] Up to [contributed] / dgamelaunch-openbsd

File: [contributed] / dgamelaunch-openbsd / strlcpy.c (download)

Revision 1.1, Tue Mar 9 14:36:00 2021 UTC (3 years ago) by rubenllorente
Branch point for: MAIN

Initial revision

/*	$OpenBSD: strlcpy.c,v 1.5 2001/05/13 15:40:16 deraadt 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.
 */

#if defined(LIBC_SCCS) && !defined(lint)
static char *rcsid =
  "$OpenBSD: strlcpy.c,v 1.5 2001/05/13 15:40:16 deraadt Exp $";
#endif /* LIBC_SCCS and not lint */

#include <sys/types.h>
#include <string.h>

/*
 * Copy src to string dst of size siz.  At most siz-1 characters
 * will be copied.  Always NUL terminates (unless siz == 0).
 * Returns strlen(src); if retval >= siz, truncation occurred.
 */
size_t
strlcpy (dst, src, siz)
     char *dst;
     const char *src;
     size_t siz;
{
  register char *d = dst;
  register const char *s = src;
  register 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 */
}