Annotation of embedaddon/php/main/strlcpy.c, revision 1.1.1.1
1.1 misho 1: /*
2: +----------------------------------------------------------------------+
3: | PHP Version 5 |
4: +----------------------------------------------------------------------+
5: | Copyright (c) 1997-2012 The PHP Group |
6: +----------------------------------------------------------------------+
7: | This source file is subject to version 3.01 of the PHP license, |
8: | that is bundled with this package in the file LICENSE, and is |
9: | available through the world-wide-web at the following url: |
10: | http://www.php.net/license/3_01.txt |
11: | If you did not receive a copy of the PHP license and are unable to |
12: | obtain it through the world-wide-web, please send a note to |
13: | license@php.net so we can mail you a copy immediately. |
14: +----------------------------------------------------------------------+
15: | Author: |
16: +----------------------------------------------------------------------+
17: */
18:
19: /* $Id: strlcpy.c 321634 2012-01-01 13:15:04Z felipe $ */
20:
21: #include "php.h"
22:
23: #ifndef HAVE_STRLCPY
24:
25: /* $OpenBSD: strlcpy.c,v 1.4 1999/05/01 18:56:41 millert Exp $ */
26:
27: /*
28: * Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
29: * All rights reserved.
30: *
31: * Redistribution and use in source and binary forms, with or without
32: * modification, are permitted provided that the following conditions
33: * are met:
34: * 1. Redistributions of source code must retain the above copyright
35: * notice, this list of conditions and the following disclaimer.
36: * 2. Redistributions in binary form must reproduce the above copyright
37: * notice, this list of conditions and the following disclaimer in the
38: * documentation and/or other materials provided with the distribution.
39: * 3. The name of the author may not be used to endorse or promote products
40: * derived from this software without specific prior written permission.
41: *
42: * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
43: * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
44: * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
45: * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
46: * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
47: * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
48: * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
49: * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
50: * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
51: * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
52: */
53:
54: #if defined(LIBC_SCCS) && !defined(lint)
55: static char *rcsid = "$OpenBSD: strlcpy.c,v 1.4 1999/05/01 18:56:41 millert Exp $";
56: #endif /* LIBC_SCCS and not lint */
57:
58: #include <sys/types.h>
59: #include <string.h>
60:
61: /*
62: * Copy src to string dst of size siz. At most siz-1 characters
63: * will be copied. Always NUL terminates (unless siz == 0).
64: * Returns strlen(src); if retval >= siz, truncation occurred.
65: */
66: PHPAPI size_t php_strlcpy(dst, src, siz)
67: char *dst;
68: const char *src;
69: size_t siz;
70: {
71: register char *d = dst;
72: register const char *s = src;
73: register size_t n = siz;
74:
75: /* Copy as many bytes as will fit */
76: if (n != 0 && --n != 0) {
77: do {
78: if ((*d++ = *s++) == 0)
79: break;
80: } while (--n != 0);
81: }
82:
83: /* Not enough room in dst, add NUL and traverse rest of src */
84: if (n == 0) {
85: if (siz != 0)
86: *d = '\0'; /* NUL-terminate dst */
87: while (*s++)
88: ;
89: }
90:
91: return(s - src - 1); /* count does not include NUL */
92: }
93:
94: #endif /* !HAVE_STRLCPY */
95:
96: /*
97: * Local variables:
98: * tab-width: 4
99: * c-basic-offset: 4
100: * End:
101: * vim600: sw=4 ts=4 fdm=marker
102: * vim<600: sw=4 ts=4
103: */
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