Home | History | Annotate | Line # | Download | only in efiboot
efigetsecs.c revision 1.1.18.2 
      1  1.1.18.2  jdolecek /*	$NetBSD: efigetsecs.c,v 1.1.18.2 2017/12/03 11:36:18 jdolecek Exp $	*/
      2  1.1.18.2  jdolecek 
      3  1.1.18.2  jdolecek /*
      4  1.1.18.2  jdolecek  * Copyright (c) 2015 YASUOKA Masahiko <yasuoka (at) yasuoka.net>
      5  1.1.18.2  jdolecek  *
      6  1.1.18.2  jdolecek  * Permission to use, copy, modify, and distribute this software for any
      7  1.1.18.2  jdolecek  * purpose with or without fee is hereby granted, provided that the above
      8  1.1.18.2  jdolecek  * copyright notice and this permission notice appear in all copies.
      9  1.1.18.2  jdolecek  *
     10  1.1.18.2  jdolecek  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
     11  1.1.18.2  jdolecek  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
     12  1.1.18.2  jdolecek  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
     13  1.1.18.2  jdolecek  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
     14  1.1.18.2  jdolecek  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
     15  1.1.18.2  jdolecek  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
     16  1.1.18.2  jdolecek  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
     17  1.1.18.2  jdolecek  */
     18  1.1.18.2  jdolecek 
     19  1.1.18.2  jdolecek #include "efiboot.h"
     20  1.1.18.2  jdolecek 
     21  1.1.18.2  jdolecek #include <lib/libsa/net.h>
     22  1.1.18.2  jdolecek 
     23  1.1.18.2  jdolecek satime_t
     24  1.1.18.2  jdolecek getsecs(void)
     25  1.1.18.2  jdolecek {
     26  1.1.18.2  jdolecek 	static const int daytab[][14] = {
     27  1.1.18.2  jdolecek 	    { 0, -1, 30, 58, 89, 119, 150, 180, 211, 242, 272, 303, 333, 364 },
     28  1.1.18.2  jdolecek 	    { 0, -1, 30, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365 },
     29  1.1.18.2  jdolecek 	};
     30  1.1.18.2  jdolecek 	EFI_TIME t;
     31  1.1.18.2  jdolecek 	satime_t r;
     32  1.1.18.2  jdolecek 	int y;
     33  1.1.18.2  jdolecek #define isleap(_y) (((_y) % 4) == 0 && (((_y) % 100) != 0 || ((_y) % 400) == 0))
     34  1.1.18.2  jdolecek 
     35  1.1.18.2  jdolecek 	uefi_call_wrapper(RT->GetTime, 2, &t, NULL);
     36  1.1.18.2  jdolecek 
     37  1.1.18.2  jdolecek 	/* Calc days from UNIX epoch */
     38  1.1.18.2  jdolecek 	r = (t.Year - 1970) * 365;
     39  1.1.18.2  jdolecek 	for (y = 1970; y < t.Year; y++) {
     40  1.1.18.2  jdolecek 		if (isleap(y))
     41  1.1.18.2  jdolecek 			r++;
     42  1.1.18.2  jdolecek 	}
     43  1.1.18.2  jdolecek 	r += daytab[isleap(t.Year) ? 1 : 0][t.Month] + t.Day;
     44  1.1.18.2  jdolecek 
     45  1.1.18.2  jdolecek 	/* Calc secs */
     46  1.1.18.2  jdolecek 	r *= 60 * 60 * 24;
     47  1.1.18.2  jdolecek 	r += ((t.Hour * 60) + t.Minute) * 60 + t.Second;
     48  1.1.18.2  jdolecek 	if (-24 * 60 < t.TimeZone && t.TimeZone < 24 * 60)
     49  1.1.18.2  jdolecek 		r += t.TimeZone * 60;
     50  1.1.18.2  jdolecek 
     51  1.1.18.2  jdolecek 	return r;
     52  1.1.18.2  jdolecek }
     53