/* $NetBSD: efigetsecs.c,v 1.1 2017/01/24 11:09:14 nonaka Exp $ */ /* * Copyright (c) 2015 YASUOKA Masahiko * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ #include "efiboot.h" #include satime_t getsecs(void) { static const int daytab[][14] = { { 0, -1, 30, 58, 89, 119, 150, 180, 211, 242, 272, 303, 333, 364 }, { 0, -1, 30, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365 }, }; EFI_TIME t; satime_t r; int y; #define isleap(_y) (((_y) % 4) == 0 && (((_y) % 100) != 0 || ((_y) % 400) == 0)) uefi_call_wrapper(RT->GetTime, 2, &t, NULL); /* Calc days from UNIX epoch */ r = (t.Year - 1970) * 365; for (y = 1970; y < t.Year; y++) { if (isleap(y)) r++; } r += daytab[isleap(t.Year) ? 1 : 0][t.Month] + t.Day; /* Calc secs */ r *= 60 * 60 * 24; r += ((t.Hour * 60) + t.Minute) * 60 + t.Second; if (-24 * 60 < t.TimeZone && t.TimeZone < 24 * 60) r += t.TimeZone * 60; return r; }