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/* $NetBSD: strlcat.c,v 1.3 2007/06/04 18:19:27 christos Exp $ */
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/* $OpenBSD: strlcat.c,v 1.10 2003/04/12 21:56:39 millert Exp $ */
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* Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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* THE SOFTWARE IS PROVIDED "AS IS" AND TODD C. MILLER DISCLAIMS ALL
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* WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL TODD C. MILLER BE LIABLE
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* FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
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* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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#if !defined(_KERNEL) && !defined(_STANDALONE)
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#if HAVE_NBTOOL_CONFIG_H
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#include "nbtool_config.h"
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#if defined(LIBC_SCCS) && !defined(lint)
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#endif /* LIBC_SCCS and not lint */
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#include "namespace.h"
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#include <sys/types.h>
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__weak_alias(strlcat, _strlcat)
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#include <lib/libkern/libkern.h>
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#endif /* !_KERNEL && !_STANDALONE */
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* Appends src to string dst of size siz (unlike strncat, siz is the
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* full size of dst, not space left). At most siz-1 characters
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* will be copied. Always NUL terminates (unless siz <= strlen(dst)).
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* Returns strlen(src) + MIN(siz, strlen(initial dst)).
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* If retval >= siz, truncation occurred.
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strlcat(char *dst, const char *src, size_t siz)
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_DIAGASSERT(dst != NULL);
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_DIAGASSERT(src != NULL);
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/* Find the end of dst and adjust bytes left but don't go past end */
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while (n-- != 0 && *d != '\0')
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return(dlen + strlen(s));
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return(dlen + (s - src)); /* count does not include NUL */