xref: /dragonfly/lib/libc/stdtime/timelocal.c (revision 8d7b8f975bdf97f45f67855432659d278147bfbf)
1 /*-
2  * Copyright (c) 2001 Alexey Zelkin <phantom@FreeBSD.org>
3  * Copyright (c) 1997 FreeBSD Inc.
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 AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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  * $FreeBSD: head/lib/libc/stdtime/timelocal.c 227753 2011-11-20 14:45:42Z theraven $
33  */
34 
35 
36 #include <stddef.h>
37 
38 #include "ldpart.h"
39 #include "timelocal.h"
40 
41 struct xlocale_time {
42           struct xlocale_component header;
43           char *buffer;
44           struct lc_time_T locale;
45 };
46 
47 struct xlocale_time __xlocale_global_time;
48 
49 #define   LCTIME_SIZE (sizeof(struct lc_time_T) / sizeof(char *))
50 
51 static const struct lc_time_T _C_time_locale = {
52           {
53                     "Jan", "Feb", "Mar", "Apr", "May", "Jun",
54                     "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
55           }, {
56                     "January", "February", "March", "April", "May", "June",
57                     "July", "August", "September", "October", "November", "December"
58           }, {
59                     "Sun", "Mon", "Tue", "Wed",
60                     "Thu", "Fri", "Sat"
61           }, {
62                     "Sunday", "Monday", "Tuesday", "Wednesday",
63                     "Thursday", "Friday", "Saturday"
64           },
65 
66           /* X_fmt */
67           "%H:%M:%S",
68 
69           /*
70            * x_fmt
71            * Since the C language standard calls for
72            * "date, using locale's date format," anything goes.
73            * Using just numbers (as here) makes Quakers happier;
74            * it's also compatible with SVR4.
75            */
76           "%m/%d/%y",
77 
78           /*
79            * c_fmt
80            */
81           "%a %b %e %H:%M:%S %Y",
82 
83           /* am */
84           "AM",
85 
86           /* pm */
87           "PM",
88 
89           /* date_fmt */
90           "%a %b %e %H:%M:%S %Z %Y",
91 
92           /* alt_month
93            * Standalone months forms for %OB
94            */
95           {
96                     "January", "February", "March", "April", "May", "June",
97                     "July", "August", "September", "October", "November", "December"
98           },
99 
100           /* md_order
101            * Month / day order in dates
102            */
103           "md",
104 
105           /* ampm_fmt
106            * To determine 12-hour clock format time (empty, if N/A)
107            */
108           "%I:%M:%S %p"
109 };
110 
destruct_time(void * v)111 static void destruct_time(void *v)
112 {
113           struct xlocale_time *l = v;
114           if (l->buffer)
115                     free(l->buffer);
116           free(l);
117 }
118 
119 #include <stdio.h>
120 struct lc_time_T *
__get_current_time_locale(locale_t loc)121 __get_current_time_locale(locale_t loc)
122 {
123           return (loc->using_time_locale
124                     ? &((struct xlocale_time *)loc->components[XLC_TIME])->locale
125                     : (struct lc_time_T *)&_C_time_locale);
126 }
127 
128 static int
time_load_locale(struct xlocale_time * l,int * using_locale,const char * name)129 time_load_locale(struct xlocale_time *l, int *using_locale, const char *name)
130 {
131           struct lc_time_T *time_locale = &l->locale;
132           return (__part_load_locale(name, using_locale,
133                               &l->buffer, "LC_TIME",
134                               LCTIME_SIZE, LCTIME_SIZE,
135                               (const char **)time_locale));
136 }
137 int
__time_load_locale(const char * name)138 __time_load_locale(const char *name)
139 {
140           return time_load_locale(&__xlocale_global_time,
141                               &__xlocale_global_locale.using_time_locale, name);
142 }
__time_load(const char * name,locale_t loc)143 void* __time_load(const char* name, locale_t loc)
144 {
145           struct xlocale_time *new = calloc(sizeof(struct xlocale_time), 1);
146           new->header.header.destructor = destruct_time;
147           if (time_load_locale(new, &loc->using_time_locale, name) == _LDP_ERROR)
148           {
149                     xlocale_release(new);
150                     return NULL;
151           }
152           return new;
153 }
154 
155