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1//
2// inittime.cpp
3//
4// Copyright (c) Microsoft Corporation. All rights reserved.
5//
6// Functionality for initializing and destroying LC_TIME category data structures
7//
8#include <corecrt_internal.h>
9#include <locale.h>
10#include <stdlib.h>
11
12
13// Enclaves have no ability to create new locales.
14#ifndef _UCRT_ENCLAVE_BUILD
15
16_Success_(return != false)
17static bool __cdecl initialize_lc_time(
18 _Inout_ __crt_lc_time_data* const lc_time,
19 _In_ __crt_locale_data* const locale_data
20 ) throw()
21{
22 wchar_t const* const locale_name = locale_data->locale_name[LC_TIME];
23
24 __crt_locale_pointers locinfo = { locale_data, nullptr };
25
26 lc_time->_W_ww_locale_name = __acrt_copy_locale_name(locale_name);
27
28 int ret = 0;
29
30 // The days of the week. Note that the OS days are numbered 1-7, starting
31 // with Monday, whereas the lc_time days are numbered (indexed, really) 0-6
32 // starting with Sunday (thus the adjustment to the index in the loop).
33 for (unsigned int i = 0; i != 7; ++i)
34 {
35 unsigned int const result_index = (i + 1) % 7;
36 ret |= __acrt_GetLocaleInfoA(&locinfo, LC_STR_TYPE, locale_name, LOCALE_SABBREVDAYNAME1 + i, &lc_time->wday_abbr[result_index]);
37 ret |= __acrt_GetLocaleInfoA(&locinfo, LC_STR_TYPE, locale_name, LOCALE_SDAYNAME1 + i, &lc_time->wday [result_index]);
38
39 ret |= __acrt_GetLocaleInfoA(&locinfo, LC_WSTR_TYPE, locale_name, LOCALE_SABBREVDAYNAME1 + i, &lc_time->_W_wday_abbr[result_index]);
40 ret |= __acrt_GetLocaleInfoA(&locinfo, LC_WSTR_TYPE, locale_name, LOCALE_SDAYNAME1 + i, &lc_time->_W_wday [result_index]);
41 }
42
43 // The months of the year
44 for (unsigned int i = 0; i != 12; ++i)
45 {
46 ret |= __acrt_GetLocaleInfoA(&locinfo, LC_STR_TYPE, locale_name, LOCALE_SABBREVMONTHNAME1 + i, &lc_time->month_abbr[i]);
47 ret |= __acrt_GetLocaleInfoA(&locinfo, LC_STR_TYPE, locale_name, LOCALE_SMONTHNAME1 + i, &lc_time->month [i]);
48
49 ret |= __acrt_GetLocaleInfoA(&locinfo, LC_WSTR_TYPE, locale_name, LOCALE_SABBREVMONTHNAME1 + i, &lc_time->_W_month_abbr[i]);
50 ret |= __acrt_GetLocaleInfoA(&locinfo, LC_WSTR_TYPE, locale_name, LOCALE_SMONTHNAME1 + i, &lc_time->_W_month [i]);
51 }
52
53 ret |= __acrt_GetLocaleInfoA(&locinfo, LC_STR_TYPE, locale_name, LOCALE_S1159, &lc_time->ampm[0]);
54 ret |= __acrt_GetLocaleInfoA(&locinfo, LC_STR_TYPE, locale_name, LOCALE_S2359, &lc_time->ampm[1]);
55
56 ret |= __acrt_GetLocaleInfoA(&locinfo, LC_WSTR_TYPE, locale_name, LOCALE_S1159, &lc_time->_W_ampm[0]);
57 ret |= __acrt_GetLocaleInfoA(&locinfo, LC_WSTR_TYPE, locale_name, LOCALE_S2359, &lc_time->_W_ampm[1]);
58
59 ret |= __acrt_GetLocaleInfoA(&locinfo, LC_STR_TYPE, locale_name, LOCALE_SSHORTDATE, &lc_time->ww_sdatefmt);
60 ret |= __acrt_GetLocaleInfoA(&locinfo, LC_STR_TYPE, locale_name, LOCALE_SLONGDATE, &lc_time->ww_ldatefmt);
61 ret |= __acrt_GetLocaleInfoA(&locinfo, LC_STR_TYPE, locale_name, LOCALE_STIMEFORMAT, &lc_time->ww_timefmt);
62 ret |= __acrt_GetLocaleInfoA(&locinfo, LC_INT_TYPE, locale_name, LOCALE_ICALENDARTYPE, &lc_time->ww_caltype);
63
64 ret |= __acrt_GetLocaleInfoA(&locinfo, LC_WSTR_TYPE, locale_name, LOCALE_SSHORTDATE, &lc_time->_W_ww_sdatefmt);
65 ret |= __acrt_GetLocaleInfoA(&locinfo, LC_WSTR_TYPE, locale_name, LOCALE_SLONGDATE, &lc_time->_W_ww_ldatefmt);
66 ret |= __acrt_GetLocaleInfoA(&locinfo, LC_WSTR_TYPE, locale_name, LOCALE_STIMEFORMAT, &lc_time->_W_ww_timefmt);
67
68 return ret == 0;
69}
70
71
72
73_Success_(return != nullptr)
74static __crt_lc_time_data const* __cdecl get_or_create_lc_time(
75 _In_ __crt_locale_data* const locale_data
76 ) throw()
77{
78 // C Locale
79 if (!locale_data->locale_name[LC_TIME])
80 {
81 return &__lc_time_c;
82 }
83
84 // Non-C Locale
85 __crt_unique_heap_ptr<__crt_lc_time_data> lc_time = _calloc_crt_t(__crt_lc_time_data, 1);
86 if (!lc_time)
87 {
88 return nullptr;
89 }
90
91 if (!initialize_lc_time(lc_time.get(), locale_data))
92 {
93 __acrt_locale_free_time(lc_time.get());
94 return nullptr;
95 }
96
97 lc_time.get()->refcount = 1;
98
99 return lc_time.detach();
100}
101
102
103
104extern "C" int __cdecl __acrt_locale_initialize_time(
105 __crt_locale_data* const locale_data
106 )
107{
108 __crt_lc_time_data const* const lc_time = get_or_create_lc_time(locale_data);
109 if (!lc_time)
110 {
111 return 1;
112 }
113
114 if (__acrt_locale_release_lc_time_reference(locale_data->lc_time_curr) == 0)
115 {
116 _ASSERTE(("lc_time_curr unexpectedly has no remaining references", 0));
117 }
118
119 locale_data->lc_time_curr = lc_time;
120 return 0;
121}
122
123#endif /* _UCRT_ENCLAVE_BUILD */
124
125
126static void __cdecl free_crt_array_internal(
127 _Inout_updates_(array_count) void const** const array,
128 _In_ size_t const array_count
129 ) throw()
130{
131 for (void const* const* it = array; it != array + array_count; ++it)
132 {
133 _free_crt(const_cast<void*>(*it));
134 }
135}
136
137
138
139template <typename T, size_t N>
140static void __cdecl free_crt_array(_Inout_ T* (&array)[N]) throw()
141{
142 return free_crt_array_internal(const_cast<void const**>(reinterpret_cast<void const* const*>(array)), N);
143}
144
145
146
147extern "C" void __cdecl __acrt_locale_free_time(
148 __crt_lc_time_data* const lc_time
149 )
150{
151 if (!lc_time)
152 {
153 return;
154 }
155
156 free_crt_array(lc_time->wday_abbr);
157 free_crt_array(lc_time->wday);
158 free_crt_array(lc_time->month_abbr);
159 free_crt_array(lc_time->month);
160 free_crt_array(lc_time->ampm);
161
162 _free_crt(lc_time->ww_sdatefmt);
163 _free_crt(lc_time->ww_ldatefmt);
164 _free_crt(lc_time->ww_timefmt);
165
166 free_crt_array(lc_time->_W_wday_abbr);
167 free_crt_array(lc_time->_W_wday);
168 free_crt_array(lc_time->_W_month_abbr);
169 free_crt_array(lc_time->_W_month);
170 free_crt_array(lc_time->_W_ampm);
171
172 _free_crt(lc_time->_W_ww_sdatefmt);
173 _free_crt(lc_time->_W_ww_ldatefmt);
174 _free_crt(lc_time->_W_ww_timefmt);
175
176 _free_crt(lc_time->_W_ww_locale_name);
177}