1 /* $OpenBSD: strlcpy.c,v 1.10 2005/08/08 08:05:37 espie Exp $ */
4 * Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
6 * Permission to use, copy, modify, and distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
19 #include <sys/types.h>
23 * Copy src to string dst of size siz. At most siz-1 characters
24 * will be copied. Always NUL terminates (unless siz == 0).
25 * Returns strlen(src); if retval >= siz, truncation occurred.
28 strlcpy(char *dst, const char *src, size_t siz)
34 /* Copy as many bytes as will fit */
35 if (n != 0 && --n != 0) {
37 if ((*d++ = *s++) == 0)
42 /* Not enough room in dst, add NUL and traverse rest of src */
45 *d = '\0'; /* NUL-terminate dst */
50 return(s - src - 1); /* count does not include NUL */