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97f98500 HT |
1 | /** @file\r |
2 | C Run-Time Libraries (CRT) Time Management Routines Wrapper Implementation\r | |
3 | for OpenSSL-based Cryptographic Library (used in DXE & RUNTIME).\r | |
4 | \r | |
ab187ae2 | 5 | Copyright (c) 2010 - 2018, Intel Corporation. All rights reserved.<BR>\r |
2009f6b4 | 6 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
97f98500 HT |
7 | \r |
8 | **/\r | |
9 | \r | |
10 | #include <Uefi.h>\r | |
fc9fa685 | 11 | #include <CrtLibSupport.h>\r |
97f98500 HT |
12 | #include <Library/UefiRuntimeServicesTableLib.h>\r |
13 | \r | |
14 | //\r | |
15 | // -- Time Management Routines --\r | |
16 | //\r | |
17 | \r | |
18 | #define IsLeap(y) (((y) % 4) == 0 && (((y) % 100) != 0 || ((y) % 400) == 0))\r | |
b7d320f8 | 19 | #define SECSPERMIN (60)\r |
97f98500 HT |
20 | #define SECSPERHOUR (60 * 60)\r |
21 | #define SECSPERDAY (24 * SECSPERHOUR)\r | |
22 | \r | |
23 | //\r | |
24 | // The arrays give the cumulative number of days up to the first of the\r | |
25 | // month number used as the index (1 -> 12) for regular and leap years.\r | |
26 | // The value at index 13 is for the whole year.\r | |
27 | //\r | |
28 | UINTN CumulativeDays[2][14] = {\r | |
29 | {\r | |
30 | 0,\r | |
31 | 0,\r | |
32 | 31,\r | |
33 | 31 + 28,\r | |
34 | 31 + 28 + 31,\r | |
35 | 31 + 28 + 31 + 30,\r | |
36 | 31 + 28 + 31 + 30 + 31,\r | |
37 | 31 + 28 + 31 + 30 + 31 + 30,\r | |
38 | 31 + 28 + 31 + 30 + 31 + 30 + 31,\r | |
39 | 31 + 28 + 31 + 30 + 31 + 30 + 31 + 31,\r | |
40 | 31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30,\r | |
41 | 31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31,\r | |
42 | 31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31 + 30,\r | |
43 | 31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31 + 30 + 31\r | |
44 | },\r | |
45 | {\r | |
46 | 0,\r | |
47 | 0,\r | |
48 | 31,\r | |
49 | 31 + 29,\r | |
50 | 31 + 29 + 31,\r | |
51 | 31 + 29 + 31 + 30,\r | |
52 | 31 + 29 + 31 + 30 + 31,\r | |
53 | 31 + 29 + 31 + 30 + 31 + 30,\r | |
54 | 31 + 29 + 31 + 30 + 31 + 30 + 31,\r | |
55 | 31 + 29 + 31 + 30 + 31 + 30 + 31 + 31,\r | |
56 | 31 + 29 + 31 + 30 + 31 + 30 + 31 + 31 + 30,\r | |
57 | 31 + 29 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31,\r | |
58 | 31 + 29 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31 + 30,\r | |
630f67dd | 59 | 31 + 29 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31 + 30 + 31\r |
97f98500 HT |
60 | }\r |
61 | };\r | |
62 | \r | |
63 | /* Get the system time as seconds elapsed since midnight, January 1, 1970. */\r | |
64 | //INTN time(\r | |
65 | // INTN *timer\r | |
66 | // )\r | |
67 | time_t time (time_t *timer)\r | |
68 | {\r | |
ab187ae2 LQ |
69 | EFI_STATUS Status;\r |
70 | EFI_TIME Time;\r | |
71 | time_t CalTime;\r | |
72 | UINTN Year;\r | |
97f98500 HT |
73 | \r |
74 | //\r | |
75 | // Get the current time and date information\r | |
76 | //\r | |
ab187ae2 LQ |
77 | Status = gRT->GetTime (&Time, NULL);\r |
78 | if (EFI_ERROR (Status) || (Time.Year < 1970)) {\r | |
79 | return 0;\r | |
80 | }\r | |
97f98500 HT |
81 | \r |
82 | //\r | |
83 | // Years Handling\r | |
84 | // UTime should now be set to 00:00:00 on Jan 1 of the current year.\r | |
85 | //\r | |
5e2318dd JW |
86 | for (Year = 1970, CalTime = 0; Year != Time.Year; Year++) {\r |
87 | CalTime = CalTime + (time_t)(CumulativeDays[IsLeap(Year)][13] * SECSPERDAY);\r | |
97f98500 HT |
88 | }\r |
89 | \r | |
90 | //\r | |
91 | // Add in number of seconds for current Month, Day, Hour, Minute, Seconds, and TimeZone adjustment\r | |
92 | //\r | |
630f67dd | 93 | CalTime = CalTime +\r |
5e2318dd | 94 | (time_t)((Time.TimeZone != EFI_UNSPECIFIED_TIMEZONE) ? (Time.TimeZone * 60) : 0) +\r |
630f67dd LG |
95 | (time_t)(CumulativeDays[IsLeap(Time.Year)][Time.Month] * SECSPERDAY) +\r |
96 | (time_t)(((Time.Day > 0) ? Time.Day - 1 : 0) * SECSPERDAY) +\r | |
97 | (time_t)(Time.Hour * SECSPERHOUR) +\r | |
98 | (time_t)(Time.Minute * 60) +\r | |
5e2318dd JW |
99 | (time_t)Time.Second;\r |
100 | \r | |
101 | if (timer != NULL) {\r | |
102 | *timer = CalTime;\r | |
103 | }\r | |
104 | \r | |
105 | return CalTime;\r | |
97f98500 | 106 | }\r |
b7d320f8 | 107 | \r |
108 | //\r | |
109 | // Convert a time value from type time_t to struct tm.\r | |
110 | //\r | |
111 | struct tm * gmtime (const time_t *timer)\r | |
112 | {\r | |
113 | struct tm *GmTime;\r | |
114 | UINT16 DayNo;\r | |
115 | UINT16 DayRemainder;\r | |
116 | time_t Year;\r | |
117 | time_t YearNo;\r | |
118 | UINT16 TotalDays;\r | |
119 | UINT16 MonthNo;\r | |
120 | \r | |
121 | if (timer == NULL) {\r | |
122 | return NULL;\r | |
123 | }\r | |
124 | \r | |
125 | GmTime = malloc (sizeof (struct tm));\r | |
126 | if (GmTime == NULL) {\r | |
127 | return NULL;\r | |
128 | }\r | |
129 | \r | |
130 | ZeroMem ((VOID *) GmTime, (UINTN) sizeof (struct tm));\r | |
131 | \r | |
132 | DayNo = (UINT16) (*timer / SECSPERDAY);\r | |
133 | DayRemainder = (UINT16) (*timer % SECSPERDAY);\r | |
134 | \r | |
135 | GmTime->tm_sec = (int) (DayRemainder % SECSPERMIN);\r | |
136 | GmTime->tm_min = (int) ((DayRemainder % SECSPERHOUR) / SECSPERMIN);\r | |
137 | GmTime->tm_hour = (int) (DayRemainder / SECSPERHOUR);\r | |
138 | GmTime->tm_wday = (int) ((DayNo + 4) % 7);\r | |
139 | \r | |
140 | for (Year = 1970, YearNo = 0; DayNo > 0; Year++) {\r | |
141 | TotalDays = (UINT16) (IsLeap (Year) ? 366 : 365);\r | |
142 | if (DayNo >= TotalDays) {\r | |
143 | DayNo = (UINT16) (DayNo - TotalDays);\r | |
144 | YearNo++;\r | |
145 | } else {\r | |
146 | break;\r | |
147 | }\r | |
148 | }\r | |
149 | \r | |
150 | GmTime->tm_year = (int) (YearNo + (1970 - 1900));\r | |
151 | GmTime->tm_yday = (int) DayNo;\r | |
152 | \r | |
153 | for (MonthNo = 12; MonthNo > 1; MonthNo--) {\r | |
04a3cfa7 | 154 | if (DayNo >= CumulativeDays[IsLeap(Year)][MonthNo]) {\r |
b7d320f8 | 155 | DayNo = (UINT16) (DayNo - (UINT16) (CumulativeDays[IsLeap(Year)][MonthNo]));\r |
156 | break;\r | |
157 | }\r | |
158 | }\r | |
159 | \r | |
04a3cfa7 GCPL |
160 | GmTime->tm_mon = (int) MonthNo - 1;\r |
161 | GmTime->tm_mday = (int) DayNo + 1;\r | |
b7d320f8 | 162 | \r |
163 | GmTime->tm_isdst = 0;\r | |
164 | GmTime->tm_gmtoff = 0;\r | |
165 | GmTime->tm_zone = NULL;\r | |
166 | \r | |
167 | return GmTime;\r | |
168 | }\r |