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/* SPDX-FileCopyrightText: 2026 Project Tick
* SPDX-FileContributor: Project Tick
* SPDX-License-Identifier: GPL-3.0-or-later
*
* MeshMC - A Custom Launcher for Minecraft
* Copyright (C) 2026 Project Tick
*
* 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, either version 3 of the License, or
* (at your option) any later version.
*
* 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/>.
*/
#include "sys.h"
#include "distroutils.h"
#include <sys/utsname.h>
#include <fstream>
#include <limits>
#include <QString>
#include <QStringList>
#include <QDebug>
Sys::KernelInfo Sys::getKernelInfo()
{
Sys::KernelInfo out;
struct utsname buf;
uname(&buf);
// NOTE: we assume linux here. this needs further elaboration
out.kernelType = KernelType::Linux;
out.kernelName = buf.sysname;
QString release = out.kernelVersion = buf.release;
// linux binary running on WSL is cursed.
out.isCursed = release.contains("WSL", Qt::CaseInsensitive) || release.contains("Microsoft", Qt::CaseInsensitive);
out.kernelMajor = 0;
out.kernelMinor = 0;
out.kernelPatch = 0;
auto sections = release.split('-');
if(sections.size() >= 1) {
auto versionParts = sections[0].split('.');
if(versionParts.size() >= 3) {
out.kernelMajor = versionParts[0].toInt();
out.kernelMinor = versionParts[1].toInt();
out.kernelPatch = versionParts[2].toInt();
}
else {
qWarning() << "Not enough version numbers in " << sections[0] << " found " << versionParts.size();
}
}
else {
qWarning() << "Not enough '-' sections in " << release << " found " << sections.size();
}
return out;
}
uint64_t Sys::getSystemRam()
{
std::string token;
#ifdef Q_OS_LINUX
std::ifstream file("/proc/meminfo");
while(file >> token)
{
if(token == "MemTotal:")
{
uint64_t mem;
if(file >> mem)
{
return mem * 1024ull;
}
else
{
return 0;
}
}
// ignore rest of the line
file.ignore(std::numeric_limits<std::streamsize>::max(), '\n');
}
#elif defined(Q_OS_FREEBSD)
char buff[512];
FILE *fp = popen("sysctl hw.physmem", "r");
if (fp != NULL)
{
while(fgets(buff, 512, fp) != NULL)
{
std::string str(buff);
uint64_t mem = std::stoull(str.substr(12, std::string::npos));
return mem * 1024ull;
}
}
#endif
return 0; // nothing found
}
bool Sys::isCPU64bit()
{
return isSystem64bit();
}
bool Sys::isSystem64bit()
{
// kernel build arch on linux
return QSysInfo::currentCpuArchitecture() == "x86_64";
}
Sys::DistributionInfo Sys::getDistributionInfo()
{
DistributionInfo systemd_info = read_os_release();
DistributionInfo lsb_info = read_lsb_release();
DistributionInfo legacy_info = read_legacy_release();
DistributionInfo result = systemd_info + lsb_info + legacy_info;
if(result.distributionName.isNull())
{
result.distributionName = "unknown";
}
if(result.distributionVersion.isNull())
{
if(result.distributionName == "arch")
{
result.distributionVersion = "rolling";
}
else
{
result.distributionVersion = "unknown";
}
}
return result;
}
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