time.c revision 1.2.16.2
1 1.2.16.2 rpaulo /* $NetBSD: time.c,v 1.2.16.2 2006/09/09 02:40:40 rpaulo Exp $ */ 2 1.2.16.2 rpaulo 3 1.2.16.2 rpaulo /*- 4 1.2.16.2 rpaulo * Copyright (c) 1999, 2000 5 1.2.16.2 rpaulo * Intel Corporation. 6 1.2.16.2 rpaulo * All rights reserved. 7 1.2.16.2 rpaulo * 8 1.2.16.2 rpaulo * Redistribution and use in source and binary forms, with or without 9 1.2.16.2 rpaulo * modification, are permitted provided that the following conditions 10 1.2.16.2 rpaulo * are met: 11 1.2.16.2 rpaulo * 12 1.2.16.2 rpaulo * 1. Redistributions of source code must retain the above copyright 13 1.2.16.2 rpaulo * notice, this list of conditions and the following disclaimer. 14 1.2.16.2 rpaulo * 15 1.2.16.2 rpaulo * 2. Redistributions in binary form must reproduce the above copyright 16 1.2.16.2 rpaulo * notice, this list of conditions and the following disclaimer in the 17 1.2.16.2 rpaulo * documentation and/or other materials provided with the distribution. 18 1.2.16.2 rpaulo * 19 1.2.16.2 rpaulo * 3. All advertising materials mentioning features or use of this software 20 1.2.16.2 rpaulo * must display the following acknowledgement: 21 1.2.16.2 rpaulo * 22 1.2.16.2 rpaulo * This product includes software developed by Intel Corporation and 23 1.2.16.2 rpaulo * its contributors. 24 1.2.16.2 rpaulo * 25 1.2.16.2 rpaulo * 4. Neither the name of Intel Corporation or its contributors may be 26 1.2.16.2 rpaulo * used to endorse or promote products derived from this software 27 1.2.16.2 rpaulo * without specific prior written permission. 28 1.2.16.2 rpaulo * 29 1.2.16.2 rpaulo * THIS SOFTWARE IS PROVIDED BY INTEL CORPORATION AND CONTRIBUTORS ``AS IS'' 30 1.2.16.2 rpaulo * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 31 1.2.16.2 rpaulo * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 32 1.2.16.2 rpaulo * ARE DISCLAIMED. IN NO EVENT SHALL INTEL CORPORATION OR CONTRIBUTORS BE 33 1.2.16.2 rpaulo * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 34 1.2.16.2 rpaulo * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 35 1.2.16.2 rpaulo * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 36 1.2.16.2 rpaulo * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 37 1.2.16.2 rpaulo * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 38 1.2.16.2 rpaulo * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 39 1.2.16.2 rpaulo * THE POSSIBILITY OF SUCH DAMAGE. 40 1.2.16.2 rpaulo * 41 1.2.16.2 rpaulo */ 42 1.2.16.2 rpaulo 43 1.2.16.2 rpaulo #include <sys/cdefs.h> 44 1.2.16.2 rpaulo /* __FBSDID("$FreeBSD: src/sys/boot/efi/libefi/time.c,v 1.4 2003/04/03 21:36:29 obrien Exp $"); 45 1.2.16.2 rpaulo */ 46 1.2.16.2 rpaulo #include <efi.h> 47 1.2.16.2 rpaulo #include <efilib.h> 48 1.2.16.2 rpaulo 49 1.2.16.2 rpaulo #include <sys/time.h> 50 1.2.16.2 rpaulo 51 1.2.16.2 rpaulo /* 52 1.2.16.2 rpaulo // Accurate only for the past couple of centuries; 53 1.2.16.2 rpaulo // that will probably do. 54 1.2.16.2 rpaulo // 55 1.2.16.2 rpaulo // (#defines From FreeBSD 3.2 lib/libc/stdtime/tzfile.h) 56 1.2.16.2 rpaulo */ 57 1.2.16.2 rpaulo 58 1.2.16.2 rpaulo #define isleap(y) (((y) % 4) == 0 && (((y) % 100) != 0 || ((y) % 400) == 0)) 59 1.2.16.2 rpaulo #define SECSPERHOUR ( 60*60 ) 60 1.2.16.2 rpaulo #define SECSPERDAY (24 * SECSPERHOUR) 61 1.2.16.2 rpaulo 62 1.2.16.2 rpaulo time_t 63 1.2.16.2 rpaulo EfiTimeToUnixTime(EFI_TIME *ETime) 64 1.2.16.2 rpaulo { 65 1.2.16.2 rpaulo /* 66 1.2.16.2 rpaulo // These arrays give the cumulative number of days up to the first of the 67 1.2.16.2 rpaulo // month number used as the index (1 -> 12) for regular and leap years. 68 1.2.16.2 rpaulo // The value at index 13 is for the whole year. 69 1.2.16.2 rpaulo */ 70 1.2.16.2 rpaulo static time_t CumulativeDays[2][14] = { 71 1.2.16.2 rpaulo {0, 72 1.2.16.2 rpaulo 0, 73 1.2.16.2 rpaulo 31, 74 1.2.16.2 rpaulo 31 + 28, 75 1.2.16.2 rpaulo 31 + 28 + 31, 76 1.2.16.2 rpaulo 31 + 28 + 31 + 30, 77 1.2.16.2 rpaulo 31 + 28 + 31 + 30 + 31, 78 1.2.16.2 rpaulo 31 + 28 + 31 + 30 + 31 + 30, 79 1.2.16.2 rpaulo 31 + 28 + 31 + 30 + 31 + 30 + 31, 80 1.2.16.2 rpaulo 31 + 28 + 31 + 30 + 31 + 30 + 31 + 31, 81 1.2.16.2 rpaulo 31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30, 82 1.2.16.2 rpaulo 31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31, 83 1.2.16.2 rpaulo 31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31 + 30, 84 1.2.16.2 rpaulo 31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31 + 30 + 31 }, 85 1.2.16.2 rpaulo {0, 86 1.2.16.2 rpaulo 0, 87 1.2.16.2 rpaulo 31, 88 1.2.16.2 rpaulo 31 + 29, 89 1.2.16.2 rpaulo 31 + 29 + 31, 90 1.2.16.2 rpaulo 31 + 29 + 31 + 30, 91 1.2.16.2 rpaulo 31 + 29 + 31 + 30 + 31, 92 1.2.16.2 rpaulo 31 + 29 + 31 + 30 + 31 + 30, 93 1.2.16.2 rpaulo 31 + 29 + 31 + 30 + 31 + 30 + 31, 94 1.2.16.2 rpaulo 31 + 29 + 31 + 30 + 31 + 30 + 31 + 31, 95 1.2.16.2 rpaulo 31 + 29 + 31 + 30 + 31 + 30 + 31 + 31 + 30, 96 1.2.16.2 rpaulo 31 + 29 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31, 97 1.2.16.2 rpaulo 31 + 29 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31 + 30, 98 1.2.16.2 rpaulo 31 + 29 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31 + 30 + 31 }}; 99 1.2.16.2 rpaulo 100 1.2.16.2 rpaulo time_t UTime; 101 1.2.16.2 rpaulo int Year; 102 1.2.16.2 rpaulo 103 1.2.16.2 rpaulo /* 104 1.2.16.2 rpaulo // Do a santity check 105 1.2.16.2 rpaulo */ 106 1.2.16.2 rpaulo if ( ETime->Year < 1998 || ETime->Year > 2099 || 107 1.2.16.2 rpaulo ETime->Month == 0 || ETime->Month > 12 || 108 1.2.16.2 rpaulo ETime->Day == 0 || ETime->Month > 31 || 109 1.2.16.2 rpaulo ETime->Hour > 23 || 110 1.2.16.2 rpaulo ETime->Minute > 59 || 111 1.2.16.2 rpaulo ETime->Second > 59 || 112 1.2.16.2 rpaulo ETime->TimeZone < -1440 || 113 1.2.16.2 rpaulo (ETime->TimeZone > 1440 && ETime->TimeZone != 2047) ) { 114 1.2.16.2 rpaulo return (0); 115 1.2.16.2 rpaulo } 116 1.2.16.2 rpaulo 117 1.2.16.2 rpaulo /* 118 1.2.16.2 rpaulo // Years 119 1.2.16.2 rpaulo */ 120 1.2.16.2 rpaulo UTime = 0; 121 1.2.16.2 rpaulo for (Year = 1970; Year != ETime->Year; ++Year) { 122 1.2.16.2 rpaulo UTime += (CumulativeDays[isleap(Year)][13] * SECSPERDAY); 123 1.2.16.2 rpaulo } 124 1.2.16.2 rpaulo 125 1.2.16.2 rpaulo /* 126 1.2.16.2 rpaulo // UTime should now be set to 00:00:00 on Jan 1 of the file's year. 127 1.2.16.2 rpaulo // 128 1.2.16.2 rpaulo // Months 129 1.2.16.2 rpaulo */ 130 1.2.16.2 rpaulo UTime += (CumulativeDays[isleap(ETime->Year)][ETime->Month] * SECSPERDAY); 131 1.2.16.2 rpaulo 132 1.2.16.2 rpaulo /* 133 1.2.16.2 rpaulo // UTime should now be set to 00:00:00 on the first of the file's month and year 134 1.2.16.2 rpaulo // 135 1.2.16.2 rpaulo // Days -- Don't count the file's day 136 1.2.16.2 rpaulo */ 137 1.2.16.2 rpaulo UTime += (((ETime->Day > 0) ? ETime->Day-1:0) * SECSPERDAY); 138 1.2.16.2 rpaulo 139 1.2.16.2 rpaulo /* 140 1.2.16.2 rpaulo // Hours 141 1.2.16.2 rpaulo */ 142 1.2.16.2 rpaulo UTime += (ETime->Hour * SECSPERHOUR); 143 1.2.16.2 rpaulo 144 1.2.16.2 rpaulo /* 145 1.2.16.2 rpaulo // Minutes 146 1.2.16.2 rpaulo */ 147 1.2.16.2 rpaulo UTime += (ETime->Minute * 60); 148 1.2.16.2 rpaulo 149 1.2.16.2 rpaulo /* 150 1.2.16.2 rpaulo // Seconds 151 1.2.16.2 rpaulo */ 152 1.2.16.2 rpaulo UTime += ETime->Second; 153 1.2.16.2 rpaulo 154 1.2.16.2 rpaulo /* 155 1.2.16.2 rpaulo // EFI time is repored in local time. Adjust for any time zone offset to 156 1.2.16.2 rpaulo // get true UT 157 1.2.16.2 rpaulo */ 158 1.2.16.2 rpaulo if ( ETime->TimeZone != EFI_UNSPECIFIED_TIMEZONE ) { 159 1.2.16.2 rpaulo /* 160 1.2.16.2 rpaulo // TimeZone is kept in minues... 161 1.2.16.2 rpaulo */ 162 1.2.16.2 rpaulo UTime += (ETime->TimeZone * 60); 163 1.2.16.2 rpaulo } 164 1.2.16.2 rpaulo 165 1.2.16.2 rpaulo return UTime; 166 1.2.16.2 rpaulo } 167 1.2.16.2 rpaulo 168 1.2.16.2 rpaulo int 169 1.2.16.2 rpaulo EFI_GetTimeOfDay( 170 1.2.16.2 rpaulo OUT struct timeval *tp, 171 1.2.16.2 rpaulo OUT struct timezone *tzp 172 1.2.16.2 rpaulo ) 173 1.2.16.2 rpaulo { 174 1.2.16.2 rpaulo EFI_TIME EfiTime; 175 1.2.16.2 rpaulo EFI_TIME_CAPABILITIES Capabilities; 176 1.2.16.2 rpaulo EFI_STATUS Status; 177 1.2.16.2 rpaulo 178 1.2.16.2 rpaulo /* 179 1.2.16.2 rpaulo // Get time from EFI 180 1.2.16.2 rpaulo */ 181 1.2.16.2 rpaulo 182 1.2.16.2 rpaulo Status = RS->GetTime( &EfiTime, &Capabilities ); 183 1.2.16.2 rpaulo if (EFI_ERROR(Status)) 184 1.2.16.2 rpaulo return (-1); 185 1.2.16.2 rpaulo 186 1.2.16.2 rpaulo /* 187 1.2.16.2 rpaulo // Convert to UNIX time (ie seconds since the epoch 188 1.2.16.2 rpaulo */ 189 1.2.16.2 rpaulo 190 1.2.16.2 rpaulo tp->tv_sec = EfiTimeToUnixTime( &EfiTime ); 191 1.2.16.2 rpaulo tp->tv_usec = 0; /* EfiTime.Nanosecond * 1000; */ 192 1.2.16.2 rpaulo 193 1.2.16.2 rpaulo /* 194 1.2.16.2 rpaulo // Do something with the timezone if needed 195 1.2.16.2 rpaulo */ 196 1.2.16.2 rpaulo 197 1.2.16.2 rpaulo if (tzp) { 198 1.2.16.2 rpaulo tzp->tz_minuteswest = 199 1.2.16.2 rpaulo EfiTime.TimeZone == EFI_UNSPECIFIED_TIMEZONE ? 0 : EfiTime.TimeZone; 200 1.2.16.2 rpaulo /* 201 1.2.16.2 rpaulo // This isn't quit right since it doesn't deal with EFI_TIME_IN_DAYLIGHT 202 1.2.16.2 rpaulo */ 203 1.2.16.2 rpaulo tzp->tz_dsttime = 204 1.2.16.2 rpaulo EfiTime.Daylight & EFI_TIME_ADJUST_DAYLIGHT ? 1 : 0; 205 1.2.16.2 rpaulo } 206 1.2.16.2 rpaulo 207 1.2.16.2 rpaulo return (0); 208 1.2.16.2 rpaulo } 209 1.2.16.2 rpaulo 210 1.2.16.2 rpaulo time_t 211 1.2.16.2 rpaulo time(time_t *tloc) 212 1.2.16.2 rpaulo { 213 1.2.16.2 rpaulo struct timeval tv; 214 1.2.16.2 rpaulo EFI_GetTimeOfDay(&tv, 0); 215 1.2.16.2 rpaulo 216 1.2.16.2 rpaulo if (tloc) 217 1.2.16.2 rpaulo *tloc = tv.tv_sec; 218 1.2.16.2 rpaulo return tv.tv_sec; 219 1.2.16.2 rpaulo } 220 1.2.16.2 rpaulo 221 1.2.16.2 rpaulo time_t 222 1.2.16.2 rpaulo getsecs() 223 1.2.16.2 rpaulo { 224 1.2.16.2 rpaulo return time(0); 225 1.2.16.2 rpaulo } 226
Indexes created Fri Sep 26 20:09:58 GMT 2025