diff options
author | nicoo <nicoo@debian.org> | 2020-02-12 13:42:22 +0100 |
---|---|---|
committer | Nicolas Braud-Santoni <nicolas@braud-santoni.eu> | 2020-02-12 13:42:22 +0100 |
commit | c79050aa44b8836d836c5dd22a383a073c28b74b (patch) | |
tree | 7bcca9fabd7718bf87ca600a6594f57b76d8de7d /openbsd-compat/strlcat.c |
Import upstream release 1.3.0
Closes: #951184
Diffstat (limited to 'openbsd-compat/strlcat.c')
-rw-r--r-- | openbsd-compat/strlcat.c | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/openbsd-compat/strlcat.c b/openbsd-compat/strlcat.c new file mode 100644 index 0000000..44470de --- /dev/null +++ b/openbsd-compat/strlcat.c | |||
@@ -0,0 +1,63 @@ | |||
1 | /* $OpenBSD: strlcat.c,v 1.13 2005/08/08 08:05:37 espie 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/strlcat.c */ | ||
20 | |||
21 | #include "openbsd-compat.h" | ||
22 | |||
23 | #if !defined(HAVE_STRLCAT) | ||
24 | |||
25 | #include <sys/types.h> | ||
26 | #include <string.h> | ||
27 | |||
28 | /* | ||
29 | * Appends src to string dst of size siz (unlike strncat, siz is the | ||
30 | * full size of dst, not space left). At most siz-1 characters | ||
31 | * will be copied. Always NUL terminates (unless siz <= strlen(dst)). | ||
32 | * Returns strlen(src) + MIN(siz, strlen(initial dst)). | ||
33 | * If retval >= siz, truncation occurred. | ||
34 | */ | ||
35 | size_t | ||
36 | strlcat(char *dst, const char *src, size_t siz) | ||
37 | { | ||
38 | char *d = dst; | ||
39 | const char *s = src; | ||
40 | size_t n = siz; | ||
41 | size_t dlen; | ||
42 | |||
43 | /* Find the end of dst and adjust bytes left but don't go past end */ | ||
44 | while (n-- != 0 && *d != '\0') | ||
45 | d++; | ||
46 | dlen = d - dst; | ||
47 | n = siz - dlen; | ||
48 | |||
49 | if (n == 0) | ||
50 | return(dlen + strlen(s)); | ||
51 | while (*s != '\0') { | ||
52 | if (n != 1) { | ||
53 | *d++ = *s; | ||
54 | n--; | ||
55 | } | ||
56 | s++; | ||
57 | } | ||
58 | *d = '\0'; | ||
59 | |||
60 | return(dlen + (s - src)); /* count does not include NUL */ | ||
61 | } | ||
62 | |||
63 | #endif /* !defined(HAVE_STRLCAT) */ | ||