1/*- 2 * Copyright (c) 1995 Alex Tatmanjants <alex@elvisti.kiev.ua> 3 * at Electronni Visti IA, Kiev, Ukraine. 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28#include <sys/cdefs.h> 29#if 0 30__FBSDID("FreeBSD: src/lib/libc/string/strxfrm.c,v 1.15 2002/09/06 11:24:06 tjr Exp "); 31#endif 32__FBSDID("$FreeBSD: src/lib/libc/string/wcsxfrm.c,v 1.3 2004/04/07 09:47:56 tjr Exp $"); 33 34#include "xlocale_private.h" 35 36#include <stdlib.h> 37#include <string.h> 38#include <wchar.h> 39#include <errno.h> 40#include "collate.h" 41 42#define WCS_XFRM_OFFSET 1 43 44size_t 45wcsxfrm_l(wchar_t * __restrict dest, const wchar_t * __restrict src, size_t len, 46 locale_t loc) 47{ 48 size_t slen; 49 wchar_t *xf[2]; 50 int sverrno; 51 52 if (*src == L'\0') { 53 if (len != 0) 54 *dest = L'\0'; 55 return (0); 56 } 57 58 NORMALIZE_LOCALE(loc); 59 if (loc->__collate_load_error) { 60 slen = wcslen(src); 61 if (len > 0) { 62 if (slen < len) 63 wcscpy(dest, src); 64 else { 65 wcsncpy(dest, src, len - 1); 66 dest[len - 1] = L'\0'; 67 } 68 } 69 return (slen); 70 } 71 72 __collate_xfrm(src, xf, loc); 73 74 slen = wcslen(xf[0]); 75 if (xf[1]) 76 slen += wcslen(xf[1]) + 1; 77 if (len > 0) { 78 wchar_t *w = xf[0]; 79 while (len > 1) { 80 if (!*w) 81 break; 82 *dest++ = *w++ + WCS_XFRM_OFFSET; 83 len--; 84 } 85 if ((w = xf[1]) != NULL) { 86 if (len > 1) 87 *dest++ = WCS_XFRM_OFFSET; 88 while (len > 1) { 89 if (!*w) 90 break; 91 *dest++ = *w++ + WCS_XFRM_OFFSET; 92 len--; 93 } 94 } 95 *dest = 0; 96 } 97 sverrno = errno; 98 free(xf[0]); 99 free(xf[1]); 100 errno = sverrno; 101 102 return (slen); 103} 104 105size_t 106wcsxfrm(wchar_t * __restrict dest, const wchar_t * __restrict src, size_t len) 107{ 108 return wcsxfrm_l(dest, src, len, __current_locale()); 109} 110