1/*-
2 * Copyright (c) 1995 Alex Tatmanjants <alex@elvisti.kiev.ua>
3 *		at Electronni Visti IA, Kiev, Ukraine.
4 *			All rights reserved.
5 *
6 * Copyright (c) 2011 The FreeBSD Foundation
7 * All rights reserved.
8 * Portions of this software were developed by David Chisnall
9 * under sponsorship from the FreeBSD Foundation.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 *    notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 *    notice, this list of conditions and the following disclaimer in the
18 *    documentation and/or other materials provided with the distribution.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 */
32
33#include <sys/cdefs.h>
34__FBSDID("$FreeBSD: releng/10.2/lib/libc/string/strcoll.c 228202 2011-12-02 15:41:09Z eadler $");
35
36#include <stdlib.h>
37#include <string.h>
38#include "collate.h"
39
40#include <stdio.h>
41
42int
43strcoll_l(const char *s, const char *s2, locale_t locale)
44{
45	int len, len2, prim, prim2, sec, sec2, ret, ret2;
46	const char *t, *t2;
47	char *tt, *tt2;
48	FIX_LOCALE(locale);
49	struct xlocale_collate *table =
50		(struct xlocale_collate*)locale->components[XLC_COLLATE];
51
52	if (table->__collate_load_error)
53		return strcmp(s, s2);
54
55	len = len2 = 1;
56	ret = ret2 = 0;
57	if (table->__collate_substitute_nontrivial) {
58		t = tt = __collate_substitute(table, s);
59		t2 = tt2 = __collate_substitute(table, s2);
60	} else {
61		tt = tt2 = NULL;
62		t = s;
63		t2 = s2;
64	}
65	while(*t && *t2) {
66		prim = prim2 = 0;
67		while(*t && !prim) {
68			__collate_lookup(table, t, &len, &prim, &sec);
69			t += len;
70		}
71		while(*t2 && !prim2) {
72			__collate_lookup(table, t2, &len2, &prim2, &sec2);
73			t2 += len2;
74		}
75		if(!prim || !prim2)
76			break;
77		if(prim != prim2) {
78			ret = prim - prim2;
79			goto end;
80		}
81		if(!ret2)
82			ret2 = sec - sec2;
83	}
84	if(!*t && *t2)
85		ret = -(int)((u_char)*t2);
86	else if(*t && !*t2)
87		ret = (u_char)*t;
88	else if(!*t && !*t2)
89		ret = ret2;
90  end:
91	free(tt);
92	free(tt2);
93
94	return ret;
95}
96
97int
98strcoll(const char *s, const char *s2)
99{
100	return strcoll_l(s, s2, __get_locale());
101}
102
103