Import mdocml-1.12.1
[dragonfly.git] / contrib / mdocml / compat_strlcpy.c
CommitLineData
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1#ifdef HAVE_CONFIG_H
2#include "config.h"
3#endif
4
5#ifdef HAVE_STRLCPY
6
7int dummy;
8
9#else
10
11/* $OpenBSD: strlcpy.c,v 1.11 2006/05/05 15:27:38 millert Exp $ */
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12
13/*
14 * Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
15 *
16 * Permission to use, copy, modify, and distribute this software for any
17 * purpose with or without fee is hereby granted, provided that the above
18 * copyright notice and this permission notice appear in all copies.
19 *
20 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
21 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
22 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
23 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
24 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
25 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
26 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
27 */
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28
29#include <sys/types.h>
30#include <string.h>
31
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32/*
33 * Copy src to string dst of size siz. At most siz-1 characters
34 * will be copied. Always NUL terminates (unless siz == 0).
35 * Returns strlen(src); if retval >= siz, truncation occurred.
36 */
37size_t
38strlcpy(char *dst, const char *src, size_t siz)
39{
40 char *d = dst;
41 const char *s = src;
42 size_t n = siz;
43
44 /* Copy as many bytes as will fit */
45 if (n != 0) {
46 while (--n != 0) {
47 if ((*d++ = *s++) == '\0')
48 break;
49 }
50 }
51
52 /* Not enough room in dst, add NUL and traverse rest of src */
53 if (n == 0) {
54 if (siz != 0)
55 *d = '\0'; /* NUL-terminate dst */
56 while (*s++)
57 ;
58 }
59
60 return(s - src - 1); /* count does not include NUL */
61}
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62
63#endif