1 /* 2 * Copyright 2013 Garrett D'Amore <garrett@damore.org> 3 * Copyright 2011 Nexenta Systems, Inc. All rights reserved. 4 * Copyright (c) 1995 Alex Tatmanjants <alex@elvisti.kiev.ua> 5 * at Electronni Visti IA, Kiev, Ukraine. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 #include "lint.h" 31 #include <stdlib.h> 32 #include <string.h> 33 #include <wchar.h> 34 #include <assert.h> 35 #include "collate.h" 36 37 #define WCS_XFRM_OFFSET 1 38 39 size_t 40 wcsxfrm_l(wchar_t *_RESTRICT_KYWD dest, 41 const wchar_t *_RESTRICT_KYWD src, size_t len, locale_t loc) 42 { 43 size_t slen; 44 const struct lc_collate *lcc = loc->collate; 45 46 if (*src == L'\0') { 47 if (len != 0) 48 *dest = L'\0'; 49 return (0); 50 } 51 52 if ((lcc->lc_is_posix) || 53 ((slen = _collate_wxfrm(lcc, src, dest, len)) == (size_t)-1)) { 54 goto error; 55 } 56 57 /* Add null termination at the correct location. */ 58 if (len > slen) { 59 dest[slen] = 0; 60 } else if (len != 0) { 61 dest[len-1] = 0; 62 } 63 64 return (slen); 65 66 error: 67 slen = wcslen(src); 68 if (slen < len) 69 (void) wcscpy(dest, src); 70 else if (len != 0) { 71 (void) wcsncpy(dest, src, len - 1); 72 dest[len - 1] = L'\0'; 73 } 74 return (slen); 75 } 76 77 size_t 78 wcsxfrm(wchar_t *_RESTRICT_KYWD dest, 79 const wchar_t *_RESTRICT_KYWD src, size_t len) 80 { 81 return (wcsxfrm_l(dest, src, len, uselocale(NULL))); 82 } 83