58 lines
1.3 KiB
C
58 lines
1.3 KiB
C
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/* @(#)wcsndup.c 1.2 10/07/21 Copyright 2003-2010 J. Schilling */
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#include <schily/mconfig.h>
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#ifndef lint
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static UConst char sccsid[] =
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"@(#)wcsndup.c 1.2 10/07/21 Copyright 2003-2010 J. Schilling";
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#endif
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/*
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* wcsndup() to be used if missing in libc
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*
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* Copyright (c) 2003-2010 J. Schilling
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*/
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/*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License, Version 1.0 only
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* (the "License"). You may not use this file except in compliance
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* with the License.
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*
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* See the file CDDL.Schily.txt in this distribution for details.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file CDDL.Schily.txt from this distribution.
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*/
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#include <schily/standard.h>
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#include <schily/stdlib.h>
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#include <schily/string.h>
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#include <schily/unistd.h>
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#include <schily/wchar.h>
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#include <schily/schily.h>
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#include <schily/libport.h>
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#ifndef HAVE_WCSNDUP
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EXPORT wchar_t *
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wcsndup(s, len)
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const wchar_t *s;
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size_t len;
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{
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size_t i = wcsnlen(s, len) + 1;
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wchar_t *res = malloc(i);
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if (res == NULL)
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return (NULL);
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if (i > 16) {
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movebytes(s, res, --i);
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res[i] = '\0';
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} else {
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wchar_t *s2 = res;
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while (--i > 0 && (*s2++ = *s++) != '\0')
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;
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if (i == 0)
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*s2 = '\0';
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}
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return (res);
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}
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#endif /* HAVE_STRDUP */
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