/src/suricata8/src/util-strlcpyu.c
Line | Count | Source |
1 | | /* |
2 | | * Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com> |
3 | | * All rights reserved. |
4 | | * |
5 | | * Redistribution and use in source and binary forms, with or without |
6 | | * modification, are permitted provided that the following conditions |
7 | | * are met: |
8 | | * 1. Redistributions of source code must retain the above copyright |
9 | | * notice, this list of conditions and the following disclaimer. |
10 | | * 2. Redistributions in binary form must reproduce the above copyright |
11 | | * notice, this list of conditions and the following disclaimer in the |
12 | | * documentation and/or other materials provided with the distribution. |
13 | | * 3. The name of the author may not be used to endorse or promote products |
14 | | * derived from this software without specific prior written permission. |
15 | | * |
16 | | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, |
17 | | * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY |
18 | | * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL |
19 | | * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
20 | | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
21 | | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
22 | | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
23 | | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR |
24 | | * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF |
25 | | * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
26 | | */ |
27 | | |
28 | | /* $Id: strlcpyu.c,v 1.4 2003/10/20 15:03:27 chrisgreen Exp $ */ |
29 | | |
30 | | #include "suricata-common.h" |
31 | | |
32 | | #ifndef HAVE_STRLCPY |
33 | | |
34 | | #if defined(LIBC_SCCS) && !defined(lint) |
35 | | static char *rcsid = "$OpenBSD: strlcpy.c,v 1.4 1999/05/01 18:56:41 millert Exp $"; |
36 | | #endif /* LIBC_SCCS and not lint */ |
37 | | |
38 | | /* |
39 | | * Copy src to string dst of size siz. At most siz-1 characters |
40 | | * will be copied. Always NUL terminates (unless siz == 0). |
41 | | * Returns strlen(src); if retval >= siz, truncation occurred. |
42 | | */ |
43 | | size_t strlcpy(char *dst, const char *src, size_t siz) |
44 | 164M | { |
45 | 164M | register char *d = dst; |
46 | 164M | register const char *s = src; |
47 | 164M | register size_t n = siz; |
48 | | |
49 | | /* Copy as many bytes as will fit */ |
50 | 164M | if (n != 0 && --n != 0) { |
51 | 7.69G | do { |
52 | 7.69G | if ((*d++ = *s++) == 0) |
53 | 152M | break; |
54 | 7.69G | } while (--n != 0); |
55 | 164M | } |
56 | | |
57 | | /* Not enough room in dst, add NUL and traverse rest of src */ |
58 | 164M | if (n == 0) { |
59 | 12.0M | if (siz != 0) |
60 | 12.0M | *d = '\0'; /* NUL-terminate dst */ |
61 | 18.0M | while (*s++) |
62 | 5.98M | ; |
63 | 12.0M | } |
64 | | |
65 | 164M | return(s - src - 1); /* count does not include NUL */ |
66 | 164M | } |
67 | | #endif |