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