diff options
Diffstat (limited to 'openbsd-compat/strlcpy.c')
-rw-r--r-- | openbsd-compat/strlcpy.c | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/openbsd-compat/strlcpy.c b/openbsd-compat/strlcpy.c new file mode 100644 index 0000000..a8b18ea --- /dev/null +++ b/openbsd-compat/strlcpy.c | |||
@@ -0,0 +1,59 @@ | |||
1 | /* $OpenBSD: strlcpy.c,v 1.11 2006/05/05 15:27:38 millert Exp $ */ | ||
2 | |||
3 | /* | ||
4 | * Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com> | ||
5 | * | ||
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. | ||
9 | * | ||
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. | ||
17 | */ | ||
18 | |||
19 | /* OPENBSD ORIGINAL: lib/libc/string/strlcpy.c */ | ||
20 | |||
21 | #include "openbsd-compat.h" | ||
22 | |||
23 | #if !defined(HAVE_STRLCPY) | ||
24 | |||
25 | #include <sys/types.h> | ||
26 | #include <string.h> | ||
27 | |||
28 | /* | ||
29 | * Copy src to string dst of size siz. At most siz-1 characters | ||
30 | * will be copied. Always NUL terminates (unless siz == 0). | ||
31 | * Returns strlen(src); if retval >= siz, truncation occurred. | ||
32 | */ | ||
33 | size_t | ||
34 | strlcpy(char *dst, const char *src, size_t siz) | ||
35 | { | ||
36 | char *d = dst; | ||
37 | const char *s = src; | ||
38 | size_t n = siz; | ||
39 | |||
40 | /* Copy as many bytes as will fit */ | ||
41 | if (n != 0) { | ||
42 | while (--n != 0) { | ||
43 | if ((*d++ = *s++) == '\0') | ||
44 | break; | ||
45 | } | ||
46 | } | ||
47 | |||
48 | /* Not enough room in dst, add NUL and traverse rest of src */ | ||
49 | if (n == 0) { | ||
50 | if (siz != 0) | ||
51 | *d = '\0'; /* NUL-terminate dst */ | ||
52 | while (*s++) | ||
53 | ; | ||
54 | } | ||
55 | |||
56 | return(s - src - 1); /* count does not include NUL */ | ||
57 | } | ||
58 | |||
59 | #endif /* !defined(HAVE_STRLCPY) */ | ||