2 * Copyright (c) 1995 Alex Tatmanjants <alex@elvisti.kiev.ua>
3 * at Electronni Visti IA, Kiev, Ukraine.
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
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.
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
28 #include <sys/cdefs.h>
30 __FBSDID("FreeBSD: src/lib/libc/string/strxfrm.c,v 1.15 2002/09/06 11:24:06 tjr Exp ");
32 __FBSDID("$FreeBSD$");
39 static char *__mbsdup(const wchar_t *);
42 * Placeholder wcsxfrm() implementation. See wcscoll.c for a description of
46 wcsxfrm(wchar_t * __restrict dest, const wchar_t * __restrict src, size_t len)
58 if (__collate_load_error || MB_CUR_MAX > 1) {
64 wcsncpy(dest, src, len - 1);
65 dest[len - 1] = L'\0';
71 mbsrc = __mbsdup(src);
74 ss = s = __collate_substitute(mbsrc);
76 while (*s != '\0' && prim == 0) {
77 __collate_lookup(s, &l, &prim, &sec);
82 *dest++ = (wchar_t)prim;
98 __mbsdup(const wchar_t *ws)
100 static const mbstate_t initial;
108 if ((len = wcsrtombs(NULL, &wcp, 0, &st)) == (size_t)-1)
110 if ((mbs = malloc(len + 1)) == NULL)
113 wcsrtombs(mbs, &ws, len + 1, &st);