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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:17:27 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:17:27 +0000
commitf215e02bf85f68d3a6106c2a1f4f7f063f819064 (patch)
tree6bb5b92c046312c4e95ac2620b10ddf482d3fa8b /src/VBox/Runtime/common/efi/efitime.cpp
parentInitial commit. (diff)
downloadvirtualbox-f215e02bf85f68d3a6106c2a1f4f7f063f819064.tar.xz
virtualbox-f215e02bf85f68d3a6106c2a1f4f7f063f819064.zip
Adding upstream version 7.0.14-dfsg.upstream/7.0.14-dfsg
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/VBox/Runtime/common/efi/efitime.cpp')
-rw-r--r--src/VBox/Runtime/common/efi/efitime.cpp123
1 files changed, 123 insertions, 0 deletions
diff --git a/src/VBox/Runtime/common/efi/efitime.cpp b/src/VBox/Runtime/common/efi/efitime.cpp
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+/* $Id: efitime.cpp $ */
+/** @file
+ * IPRT - EFI time conversion helpers.
+ */
+
+/*
+ * Copyright (C) 2021-2023 Oracle and/or its affiliates.
+ *
+ * This file is part of VirtualBox base platform packages, as
+ * available from https://www.virtualbox.org.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, in version 3 of the
+ * License.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <https://www.gnu.org/licenses>.
+ *
+ * The contents of this file may alternatively be used under the terms
+ * of the Common Development and Distribution License Version 1.0
+ * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
+ * in the VirtualBox distribution, in which case the provisions of the
+ * CDDL are applicable instead of those of the GPL.
+ *
+ * You may elect to license modified versions of this file under the
+ * terms and conditions of either the GPL or the CDDL or both.
+ *
+ * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
+ */
+
+
+/*********************************************************************************************************************************
+* Header Files *
+*********************************************************************************************************************************/
+#define LOG_GROUP RTLOGGROUP_TIME
+#include <iprt/efi.h>
+
+#include <iprt/cdefs.h>
+#include <iprt/string.h>
+
+
+/*********************************************************************************************************************************
+* Defined Constants And Macros *
+*********************************************************************************************************************************/
+
+
+/*********************************************************************************************************************************
+* Structures and Typedefs *
+*********************************************************************************************************************************/
+
+
+/*********************************************************************************************************************************
+* Internal Functions *
+*********************************************************************************************************************************/
+
+RTDECL(PRTTIMESPEC) RTEfiTimeToTimeSpec(PRTTIMESPEC pTimeSpec, PCEFI_TIME pEfiTime)
+{
+ RTTIME Time; RT_ZERO(Time);
+
+ Time.i32Year = pEfiTime->u16Year;
+ Time.u8Month = pEfiTime->u8Month;
+ Time.u8MonthDay = pEfiTime->u8Day;
+ Time.u8Hour = pEfiTime->u8Hour;
+ Time.u8Minute = pEfiTime->u8Minute;
+ Time.u8Second = pEfiTime->u8Second;
+ Time.u32Nanosecond = pEfiTime->u32Nanosecond;
+ if (pEfiTime->iTimezone != EFI_TIME_TIMEZONE_UNSPECIFIED)
+ Time.offUTC = pEfiTime->iTimezone;
+ Time.fFlags = RTTIME_FLAGS_TYPE_LOCAL;
+ if (RTTimeIsLeapYear(Time.i32Year))
+ Time.fFlags |= RTTIME_FLAGS_LEAP_YEAR;
+ else
+ Time.fFlags |= RTTIME_FLAGS_COMMON_YEAR;
+ if (pEfiTime->u8Daylight & EFI_TIME_DAYLIGHT_ADJUST)
+ {
+ if (pEfiTime->u8Daylight & EFI_TIME_DAYLIGHT_INDST)
+ Time.fFlags |= RTTIME_FLAGS_DST;
+ }
+ else
+ Time.fFlags |= RTTIME_FLAGS_NO_DST_DATA;
+
+ if (!RTTimeLocalNormalize(&Time))
+ return NULL;
+
+ return RTTimeImplode(pTimeSpec, &Time);
+}
+
+
+RTDECL(PEFI_TIME) RTEfiTimeFromTimeSpec(PEFI_TIME pEfiTime, PCRTTIMESPEC pTimeSpec)
+{
+ RTTIME Time; RT_ZERO(Time);
+ if (!RTTimeExplode(&Time, pTimeSpec))
+ return NULL;
+
+ RT_ZERO(*pEfiTime);
+ pEfiTime->u16Year = Time.i32Year < 0
+ ? 0
+ : (uint16_t)Time.i32Year;
+ pEfiTime->u8Month = Time.u8Month;
+ pEfiTime->u8Day = Time.u8MonthDay;
+ pEfiTime->u8Hour = Time.u8Hour;
+ pEfiTime->u8Minute = Time.u8Minute;
+ pEfiTime->u8Second = Time.u8Second;
+ pEfiTime->u32Nanosecond = Time.u32Nanosecond;
+ if ((Time.fFlags & RTTIME_FLAGS_TYPE_MASK) == RTTIME_FLAGS_TYPE_LOCAL)
+ pEfiTime->iTimezone = Time.offUTC;
+ else
+ pEfiTime->iTimezone = EFI_TIME_TIMEZONE_UNSPECIFIED;
+ if (!(Time.fFlags & RTTIME_FLAGS_NO_DST_DATA))
+ {
+ pEfiTime->u8Daylight = EFI_TIME_DAYLIGHT_ADJUST;
+ if (Time.fFlags & RTTIME_FLAGS_DST)
+ pEfiTime->u8Daylight |= EFI_TIME_DAYLIGHT_INDST;
+ }
+ return pEfiTime;
+}
+