1 | /* |
2 | +----------------------------------------------------------------------+ |
3 | | PHP Version 5 | |
4 | +----------------------------------------------------------------------+ |
5 | | Copyright (c) 1997-2015 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 | /* $Id$ */ |
20 | |
21 | #include "php.h" |
22 | |
23 | #ifndef HAVE_STRLCAT |
24 | |
25 | /* $OpenBSD: strlcat.c,v 1.2 1999/06/17 16:28:58 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: strlcat.c,v 1.2 1999/06/17 16:28:58 millert Exp $" ; |
56 | #endif /* LIBC_SCCS and not lint */ |
57 | |
58 | #include <sys/types.h> |
59 | #include <string.h> |
60 | |
61 | /* |
62 | * Appends src to string dst of size siz (unlike strncat, siz is the |
63 | * full size of dst, not space left). At most siz-1 characters |
64 | * will be copied. Always NUL terminates (unless siz == 0). |
65 | * Returns strlen(src); if retval >= siz, truncation occurred. |
66 | */ |
67 | PHPAPI size_t php_strlcat(dst, src, siz) |
68 | char *dst; |
69 | const char *src; |
70 | size_t siz; |
71 | { |
72 | register char *d = dst; |
73 | register const char *s = src; |
74 | register size_t n = siz; |
75 | size_t dlen; |
76 | |
77 | /* Find the end of dst and adjust bytes left but don't go past end */ |
78 | while (*d != '\0' && n-- != 0) |
79 | d++; |
80 | dlen = d - dst; |
81 | n = siz - dlen; |
82 | |
83 | if (n == 0) |
84 | return(dlen + strlen(s)); |
85 | while (*s != '\0') { |
86 | if (n != 1) { |
87 | *d++ = *s; |
88 | n--; |
89 | } |
90 | s++; |
91 | } |
92 | *d = '\0'; |
93 | |
94 | return(dlen + (s - src)); /* count does not include NUL */ |
95 | } |
96 | |
97 | #endif /* !HAVE_STRLCAT */ |
98 | |
99 | /* |
100 | * Local variables: |
101 | * tab-width: 4 |
102 | * c-basic-offset: 4 |
103 | * End: |
104 | * vim600: sw=4 ts=4 fdm=marker |
105 | * vim<600: sw=4 ts=4 |
106 | */ |
107 | |