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65 lines
2.3 KiB
C
65 lines
2.3 KiB
C
/****************************************************************************
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*
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* Open Watcom Project
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*
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* Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved.
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*
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* ========================================================================
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*
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* This file contains Original Code and/or Modifications of Original
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* Code as defined in and that are subject to the Sybase Open Watcom
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* Public License version 1.0 (the 'License'). You may not use this file
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* except in compliance with the License. BY USING THIS FILE YOU AGREE TO
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* ALL TERMS AND CONDITIONS OF THE LICENSE. A copy of the License is
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* provided with the Original Code and Modifications, and is also
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* available at www.sybase.com/developer/opensource.
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*
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* The Original Code and all software distributed under the License are
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* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
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* EXPRESS OR IMPLIED, AND SYBASE AND ALL CONTRIBUTORS HEREBY DISCLAIM
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* ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR
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* NON-INFRINGEMENT. Please see the License for the specific language
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* governing rights and limitations under the License.
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*
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* ========================================================================
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*
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* Description: Implementation of BSD style strlcpy() and wcslcpy().
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*
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****************************************************************************/
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#include "variety.h"
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#include "widechar.h"
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#include <string.h>
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_WCRTLINK size_t __F_NAME(strlcpy,wcslcpy)( CHAR_TYPE *dst, const CHAR_TYPE *src, size_t len )
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{
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const CHAR_TYPE *s;
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size_t count;
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count = len;
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if( len ) {
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--len; // leave space for terminating null
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for( ; len; --len ) {
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if( *src == NULLCHAR ) {
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break;
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}
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*dst++ = *src++;
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}
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*dst = NULLCHAR; // terminate 'dst'
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} else {
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++count; // account for not decrementing 'len'
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}
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if( !len ) { // source string was truncated
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s = src;
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while( *s != NULLCHAR ) {
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++s;
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}
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count += s - src; // find out how long 'src' really is
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}
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return( count - len - 1 ); // final null doesn't count
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}
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