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author | Christian Neukirchen <chneukirchen@gmail.com> | 2010-02-21 19:18:12 +0100 |
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committer | Christian Neukirchen <chneukirchen@gmail.com> | 2010-02-21 19:18:12 +0100 |
commit | d90ab511119139a86022ee8973ce31c6681e2548 (patch) | |
tree | d808c9334d1bd88aa564ce90d6c5f805f0dd41ad /strlcpy.c | |
parent | 50aff37f501046982d544383219f8b90c0bb2498 (diff) | |
download | cwm-d90ab511119139a86022ee8973ce31c6681e2548.tar.gz cwm-d90ab511119139a86022ee8973ce31c6681e2548.tar.xz cwm-d90ab511119139a86022ee8973ce31c6681e2548.zip |
Add missing functions
Diffstat (limited to 'strlcpy.c')
-rw-r--r-- | strlcpy.c | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/strlcpy.c b/strlcpy.c new file mode 100644 index 0000000..9fef621 --- /dev/null +++ b/strlcpy.c @@ -0,0 +1,57 @@ +/* $OpenBSD: strlcpy.c,v 1.10 2005/08/08 08:05:37 espie Exp $ */ + +/* + * Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com> + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +/* OPENBSD ORIGINAL: lib/libc/string/strlcpy.c */ + +#ifndef HAVE_STRLCPY + +#include <sys/types.h> +#include <string.h> + +/* + * Copy src to string dst of size siz. At most siz-1 characters + * will be copied. Always NUL terminates (unless siz == 0). + * Returns strlen(src); if retval >= siz, truncation occurred. + */ +size_t +strlcpy(char *dst, const char *src, size_t siz) +{ + char *d = dst; + const char *s = src; + size_t n = siz; + + /* Copy as many bytes as will fit */ + if (n != 0 && --n != 0) { + do { + if ((*d++ = *s++) == 0) + break; + } while (--n != 0); + } + + /* Not enough room in dst, add NUL and traverse rest of src */ + if (n == 0) { + if (siz != 0) + *d = '\0'; /* NUL-terminate dst */ + while (*s++) + ; + } + + return(s - src - 1); /* count does not include NUL */ +} + +#endif /* !HAVE_STRLCPY */ |