1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright 2010 Nexenta Systems, Inc. All rights reserved. 5 * Copyright (c) 1995 Alex Tatmanjants <alex@elvisti.kiev.ua> 6 * at Electronni Visti IA, Kiev, Ukraine. 7 * All rights reserved. 8 * 9 * Copyright (c) 2011 The FreeBSD Foundation 10 * 11 * Portions of this software were developed by David Chisnall 12 * under sponsorship from the FreeBSD Foundation. 13 * 14 * Redistribution and use in source and binary forms, with or without 15 * modification, are permitted provided that the following conditions 16 * are met: 17 * 1. Redistributions of source code must retain the above copyright 18 * notice, this list of conditions and the following disclaimer. 19 * 2. Redistributions in binary form must reproduce the above copyright 20 * notice, this list of conditions and the following disclaimer in the 21 * documentation and/or other materials provided with the distribution. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 #include <sys/cdefs.h> 37 __FBSDID("$FreeBSD$"); 38 39 #include <stdlib.h> 40 #include <string.h> 41 #include <wchar.h> 42 #include "collate.h" 43 44 size_t 45 wcsxfrm_l(wchar_t * __restrict dest, const wchar_t * __restrict src, size_t len, locale_t locale) 46 { 47 size_t slen; 48 FIX_LOCALE(locale); 49 struct xlocale_collate *table = 50 (struct xlocale_collate*)locale->components[XLC_COLLATE]; 51 52 if (*src == L'\0') { 53 if (len != 0) 54 *dest = L'\0'; 55 return (0); 56 } 57 58 if ((table->__collate_load_error) || 59 ((slen = _collate_wxfrm(table, src, dest, len)) == (size_t)-1)) { 60 goto error; 61 } 62 63 /* Add null termination at the correct location. */ 64 if (len > slen) { 65 dest[slen] = 0; 66 } else if (len) { 67 dest[len-1] = 0; 68 } 69 70 return (slen); 71 72 error: 73 slen = wcslen(src); 74 if (slen < len) 75 (void) wcscpy(dest, src); 76 else if (len > 0) { 77 (void) wcsncpy(dest, src, len - 1); 78 dest[len - 1] = L'\0'; 79 } 80 return (slen); 81 } 82 83 size_t 84 wcsxfrm(wchar_t * __restrict dest, const wchar_t * __restrict src, size_t len) 85 { 86 return wcsxfrm_l(dest, src, len, __get_locale()); 87 } 88