author | William Roberts <williamr@symbian.org> |
Thu, 22 Jul 2010 16:48:56 +0100 | |
branch | GCC_SURGE |
changeset 45 | 4b03adbd26ca |
parent 0 | e4d67989cc36 |
permissions | -rw-r--r-- |
0
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/* $OpenBSD: strlcat.c,v 1.2 1999/06/17 16:28:58 millert Exp $ */ |
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|
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/* |
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* Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com> |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* 3. The name of the author may not be used to endorse or promote products |
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* derived from this software without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, |
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY |
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* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL |
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* THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR |
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF |
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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* © Portions copyright (c) 2005-2006 Nokia Corporation. All rights reserved. |
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*/ |
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|
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#if defined(LIBC_SCCS) && !defined(lint) |
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static char *rcsid = "$OpenBSD: strlcat.c,v 1.2 1999/06/17 16:28:58 millert Exp $"; |
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#endif /* LIBC_SCCS and not lint */ |
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#include <sys/cdefs.h> |
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#ifndef __SYMBIAN32__ |
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__FBSDID("$FreeBSD: src/lib/libc/string/strlcat.c,v 1.10 2004/10/16 06:32:43 obrien Exp $"); |
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#endif |
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|
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|
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#include <sys/types.h> |
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#include <string.h> |
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|
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/* |
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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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*/ |
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EXPORT_C |
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size_t |
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strlcat(dst, src, siz) |
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char *dst; |
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const char *src; |
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size_t siz; |
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{ |
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char *d = dst; |
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const char *s = src; |
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size_t n = siz; |
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size_t dlen; |
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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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d++; |
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dlen = d - dst; |
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n = siz - dlen; |
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if (n == 0) |
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return(dlen + strlen(s)); |
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while (*s != '\0') { |
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if (n != 1) { |
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*d++ = *s; |
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n--; |
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} |
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s++; |
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} |
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*d = '\0'; |
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return(dlen + (s - src)); /* count does not include NUL */ |
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} |