string/FreeBSD/strcoll.c

   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 __FBSDID("$FreeBSD: src/lib/libc/string/strcoll.c,v 1.14 2009/02/03 17:58:20 danger Exp $");
  30
  31 #include "xlocale_private.h"
  32
  33 #include <stdlib.h>
  34 #include <string.h>
  35 #include <wchar.h>
  36 #include <errno.h>
  37 #include "collate.h"
  38
  39 int
  40 strcoll_l(const char *s, const char *s2, locale_t loc)
  41 {
  42         int ret;
  43         const wchar_t *t = NULL, *t2 = NULL;
  44         int sverrno;
  45
  46         NORMALIZE_LOCALE(loc);
  47         if (loc->__collate_load_error || (t = __collate_mbstowcs(s, loc)) == NULL || (t2 = __collate_mbstowcs(s2, loc)) == NULL) {
  48                 sverrno = errno;
  49                 free((void *)t);
  50                 free((void *)t2);
  51                 errno = sverrno;
  52                 return strcmp(s, s2);
  53         }
  54
  55         ret = wcscoll_l(t, t2, loc);
  56         sverrno = errno;
  57         free((void *)t);
  58         free((void *)t2);
  59         errno = sverrno;
  60
  61         return ret;
  62 }
  63
  64 int
  65 strcoll(const char *s, const char *s2)
  66 {
  67         return strcoll_l(s, s2, __current_locale());
  68 }