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Atmosphere/libraries/libstratosphere/source/hos/hos_version_api_private.cpp

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2.2 KiB
C++

/*
* Copyright (c) Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope 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 <http://www.gnu.org/licenses/>.
*/
#include <stratosphere.hpp>
namespace ams::hos {
namespace {
#if defined(ATMOSPHERE_OS_HORIZON)
settings::FirmwareVersion GetSettingsFirmwareVersion() {
/* Mount the system version title. */
R_ABORT_UNLESS(ams::fs::MountSystemData("sysver", ncm::SystemDataId::SystemVersion));
ON_SCOPE_EXIT { ams::fs::Unmount("sysver"); };
/* Read the firmware version file. */
ams::fs::FileHandle file;
R_ABORT_UNLESS(ams::fs::OpenFile(std::addressof(file), "sysver:/file", fs::OpenMode_Read));
ON_SCOPE_EXIT { ams::fs::CloseFile(file); };
/* Must be possible to read firmware version from file. */
settings::FirmwareVersion firmware_version;
R_ABORT_UNLESS(ams::fs::ReadFile(file, 0, std::addressof(firmware_version), sizeof(firmware_version)));
return firmware_version;
}
#endif
}
void InitializeVersionInternal(bool allow_approximate);
void SetNonApproximateVersionInternal() {
#if defined(ATMOSPHERE_OS_HORIZON)
/* Get the settings . */
const auto firmware_version = GetSettingsFirmwareVersion();
/* Set the exosphere api version. */
R_ABORT_UNLESS(spl::SetConfig(spl::ConfigItem::ExosphereApiVersion, (static_cast<u32>(firmware_version.major) << 24) | (static_cast<u32>(firmware_version.minor) << 16) | (static_cast<u32>(firmware_version.micro) << 8)));
/* Update our own version value. */
InitializeVersionInternal(false);
#endif
}
}