diff options
author | Bjørn Mork <bjorn@mork.no> | 2015-05-15 10:23:51 +0200 |
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committer | Bjørn Mork <bjorn@mork.no> | 2015-05-15 10:23:51 +0200 |
commit | 02013228914a1d17e8df15d4e2b7950469395a5c (patch) | |
tree | 48d2fbe2f5a5adb60cbeabc26fadaec8e0fa82ed /libbb/strlcat.c | |
parent | 9b3dbb454e8f8a463d5fe4541ee2001585527bc6 (diff) |
ripe-atlas-fw: imported version 45204520
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Diffstat (limited to 'libbb/strlcat.c')
-rw-r--r-- | libbb/strlcat.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/libbb/strlcat.c b/libbb/strlcat.c new file mode 100644 index 0000000..6dd7747 --- /dev/null +++ b/libbb/strlcat.c @@ -0,0 +1,46 @@ +/* + * Copyright (C) 2002 Manuel Novoa III + * Copyright (C) 2000-2005 Erik Andersen <andersen@uclibc.org> + * + * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + */ + +/* OpenBSD function: + * Append at most n-1-strlen(dst) chars from src to dst and nul-terminate dst. + * Returns strlen(src) + strlen({original} dst), so truncation occurred if the + * return val is >= n. + * Note: If dst doesn't contain a nul in the first n chars, strlen(dst) is + * taken as n. */ + +#include "libbb.h" + +size_t strlcat(register char *__restrict dst, + register const char *__restrict src, + size_t n) +{ + size_t len; + char dummy[1]; + + len = 0; + + while (1) { + if (len >= n) { + dst = dummy; + break; + } + if (!*dst) { + break; + } + ++dst; + ++len; + } + + while ((*dst = *src) != 0) { + if (++len < n) { + ++dst; + } + ++src; + } + + return len; +} |