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/*-
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright 2010 Nexenta Systems, Inc. All rights reserved.
* Copyright (c) 1995 Alex Tatmanjants <alex@elvisti.kiev.ua>
* at Electronni Visti IA, Kiev, Ukraine.
* All rights reserved.
*
* Copyright (c) 2011 The FreeBSD Foundation
*
* Portions of this software were developed by David Chisnall
* under sponsorship from the FreeBSD Foundation.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <wchar.h>
#include "collate.h"
size_t
strxfrm_l(char * __restrict dest, const char * __restrict src, size_t len, locale_t loc);
size_t
strxfrm(char * __restrict dest, const char * __restrict src, size_t len)
{
return strxfrm_l(dest, src, len, __get_locale());
}
size_t
strxfrm_l(char * __restrict dest, const char * __restrict src, size_t len, locale_t locale)
{
size_t slen;
size_t xlen;
wchar_t *wcs = NULL;
FIX_LOCALE(locale);
struct xlocale_collate *table =
(struct xlocale_collate*)locale->components[XLC_COLLATE];
if (!*src) {
if (len > 0)
*dest = '\0';
return (0);
}
/*
* The conversion from multibyte to wide character strings is
* strictly reducing (one byte of an mbs cannot expand to more
* than one wide character.)
*/
slen = strlen(src);
if (table->__collate_load_error)
goto error;
if ((wcs = malloc((slen + 1) * sizeof (wchar_t))) == NULL)
goto error;
if (mbstowcs_l(wcs, src, slen + 1, locale) == (size_t)-1)
goto error;
if ((xlen = _collate_sxfrm(table, wcs, dest, len)) == (size_t)-1)
goto error;
free(wcs);
if (len > xlen) {
dest[xlen] = 0;
} else if (len) {
dest[len-1] = 0;
}
return (xlen);
error:
/* errno should be set to ENOMEM if malloc failed */
free(wcs);
strlcpy(dest, src, len);
return (slen);
}
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