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: stable/9/lib/libc/string/strcoll.c 235785 2012-05-22 14:40:39Z theraven $");
35
36 #include <stdlib.h>
37 #include <string.h>
38 #include "collate.h"
39
40 #include <stdio.h>
41
42 int
strcoll_l(const char * s,const char * s2,locale_t locale)43 strcoll_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
97 int
strcoll(const char * s,const char * s2)98 strcoll(const char *s, const char *s2)
99 {
100 return strcoll_l(s, s2, __get_locale());
101 }
102
103