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2964 need POSIX 2008 locale object support
Reviewed by: Robert Mustacchi <rm@joyent.com>
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--- old/usr/src/lib/libc/port/locale/strcoll.c
+++ new/usr/src/lib/libc/port/locale/strcoll.c
1 1 /*
2 + * Copyright 2013 Garrett D'Amore <garrett@damore.org>
2 3 * Copyright 2010 Nexenta Systems, Inc. All rights reserved.
3 4 * Copyright (c) 1995 Alex Tatmanjants <alex@elvisti.kiev.ua>
4 5 * at Electronni Visti IA, Kiev, Ukraine.
5 6 * All rights reserved.
6 7 *
7 8 * Redistribution and use in source and binary forms, with or without
8 9 * modification, are permitted provided that the following conditions
9 10 * are met:
10 11 * 1. Redistributions of source code must retain the above copyright
11 12 * notice, this list of conditions and the following disclaimer.
12 13 * 2. Redistributions in binary form must reproduce the above copyright
13 14 * notice, this list of conditions and the following disclaimer in the
14 15 * documentation and/or other materials provided with the distribution.
15 16 *
16 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND
17 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE
20 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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26 27 * SUCH DAMAGE.
27 28 */
28 29
29 30 #include "lint.h"
30 31 #include "file64.h"
31 32 #include <alloca.h>
32 33 #include <stdlib.h>
33 34 #include <string.h>
34 35 #include <errno.h>
35 36 #include <wchar.h>
37 +#include <xlocale.h>
38 +#include "localeimpl.h"
36 39 #include "collate.h"
37 40
38 41 #define ALLOCA_LIMIT 16
39 42
40 43 /*
41 44 * In order to properly handle multibyte locales, its easiet to just
42 45 * convert to wide characters and then use wcscoll. However if an
43 46 * error occurs, we gracefully fall back to simple strcmp. Caller
44 47 * should check errno.
45 48 */
46 49 int
47 -strcoll(const char *s1, const char *s2)
50 +strcoll_l(const char *s1, const char *s2, locale_t loc)
48 51 {
49 52 int ret;
50 53 wchar_t *t1 = NULL, *t2 = NULL;
51 54 wchar_t *w1 = NULL, *w2 = NULL;
52 55 size_t sz1, sz2;
56 + const struct lc_collate *lcc = loc->collate;
53 57
54 - if (_collate_load_error)
55 - goto error;
58 + mbstate_t mbs1 = { 0 }; /* initial states */
59 + mbstate_t mbs2 = { 0 };
56 60
61 + if (lcc->lc_is_posix)
62 + return (strcmp(s1, s2));
63 +
57 64 sz1 = strlen(s1) + 1;
58 65 sz2 = strlen(s2) + 1;
59 66
60 67 /*
61 68 * Simple assumption: conversion to wide format is strictly
62 69 * reducing, i.e. a single byte (or multibyte character)
63 70 * cannot result in multiple wide characters.
64 71 *
65 72 * We gain a bit of performance by giving preference to alloca
66 73 * for small string allocations.
67 74 */
68 75 if (sz1 > ALLOCA_LIMIT) {
69 76 if ((t1 = malloc(sz1 * sizeof (wchar_t))) == NULL)
70 77 goto error;
71 78 w1 = t1;
72 79 } else {
73 80 if ((w1 = alloca(sz1 * sizeof (wchar_t))) == NULL)
74 81 goto error;
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75 82 }
76 83 if (sz2 > ALLOCA_LIMIT) {
77 84 if ((t2 = malloc(sz2 * sizeof (wchar_t))) == NULL)
78 85 goto error;
79 86 w2 = t2;
80 87 } else {
81 88 if ((w2 = alloca(sz2 * sizeof (wchar_t))) == NULL)
82 89 goto error;
83 90 }
84 91
85 - if ((mbstowcs(w1, s1, sz1)) == (size_t)-1)
92 + if ((mbsrtowcs_l(w1, &s1, sz1, &mbs1, loc)) == (size_t)-1)
86 93 goto error;
87 94
88 - if ((mbstowcs(w2, s2, sz2)) == (size_t)-1)
95 + if ((mbsrtowcs_l(w2, &s2, sz2, &mbs2, loc)) == (size_t)-1)
89 96 goto error;
90 97
91 - ret = wcscoll(w1, w2);
98 + ret = wcscoll_l(w1, w2, loc);
92 99 if (t1)
93 100 free(t1);
94 101 if (t2)
95 102 free(t2);
96 103
97 104 return (ret);
98 105
99 106 error:
100 107 if (t1)
101 108 free(t1);
102 109 if (t2)
103 110 free(t2);
104 111 return (strcmp(s1, s2));
112 +}
113 +
114 +int
115 +strcoll(const char *s1, const char *s2)
116 +{
117 + return (strcoll_l(s1, s2, uselocale(NULL)));
105 118 }
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