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// *****************************************************************************
// * This file is part of the FreeFileSync project. It is distributed under *
// * GNU General Public License: https://www.gnu.org/licenses/gpl-3.0 *
// * Copyright (C) Zenju (zenju AT freefilesync DOT org) - All Rights Reserved *
// *****************************************************************************
#include "system.h"
#include "file_access.h"
#include "crc.h"
#include "symlink_target.h"
#include "file_io.h"
#include <ifaddrs.h>
#include <net/if.h> //IFF_LOOPBACK
#include <netpacket/packet.h> //sockaddr_ll
#include <unistd.h> //getuid()
#include <pwd.h> //getpwuid_r()
#include "shell_execute.h"
using namespace zen;
std::wstring zen::getUserName() //throw FileError
{
const uid_t userIdNo = ::getuid(); //never fails
std::vector<char> buffer(std::max<long>(10000, ::sysconf(_SC_GETPW_R_SIZE_MAX))); //::sysconf may return long(-1)
struct passwd buffer2 = {};
struct passwd* pwsEntry = nullptr;
if (::getpwuid_r(userIdNo, &buffer2, &buffer[0], buffer.size(), &pwsEntry) != 0) //getlogin() is deprecated and not working on Ubuntu at all!!!
THROW_LAST_FILE_ERROR(_("Cannot get process information."), "getpwuid_r");
if (!pwsEntry)
throw FileError(_("Cannot get process information."), L"no login found"); //should not happen?
return utfTo<std::wstring>(pwsEntry->pw_name);
}
namespace
{
}
ComputerModel zen::getComputerModel() //throw FileError
{
ComputerModel cm;
try
{
auto tryGetInfo = [](const Zstring& filePath)
{
if (!fileAvailable(filePath))
return std::wstring();
try
{
const std::string stream = loadBinContainer<std::string>(filePath, nullptr /*notifyUnbufferedIO*/); //throw FileError
return utfTo<std::wstring>(trimCpy(stream));
}
catch (const FileError& e) { throw SysError(e.toString()); } //errors should be further enriched by context info => SysError
};
cm.model = tryGetInfo("/sys/devices/virtual/dmi/id/product_name"); //throw SysError
cm.vendor = tryGetInfo("/sys/devices/virtual/dmi/id/sys_vendor"); //
//clean up:
for (const char* dummyModel :
{
"To Be Filled By O.E.M.", "Default string", "empty", "O.E.M", "OEM", "NA",
"System Product Name", "Please change product name", "INVALID",
})
if (equalAsciiNoCase(cm.model, dummyModel))
{
cm.model.clear();
break;
}
for (const char* dummyVendor :
{
"To Be Filled By O.E.M.", "Default string", "empty", "O.E.M", "OEM", "NA",
"System manufacturer", "OEM Manufacturer",
})
if (equalAsciiNoCase(cm.vendor, dummyVendor))
{
cm.vendor.clear();
break;
}
return cm;
}
catch (const SysError& e) { throw FileError(_("Cannot get process information."), e.toString()); }
}
std::wstring zen::getOsDescription() //throw FileError
{
try
{
//"lsb_release" not available on some systems: https://freefilesync.org/forum/viewtopic.php?t=7191
// => use /etc/os-release: https://www.freedesktop.org/software/systemd/man/os-release.html
std::string releaseInfo;
try
{
releaseInfo = loadBinContainer<std::string>("/etc/os-release", nullptr /*notifyUnbufferedIO*/); //throw FileError
}
catch (const FileError& e) { throw SysError(e.toString()); } //further enrich with context info => SysError
std::string osName;
std::string osVersion;
for (const std::string& line : split(releaseInfo, '\n', SplitType::SKIP_EMPTY)) //throw FileError
if (startsWith(line, "NAME="))
osName = afterFirst(line, '=', IF_MISSING_RETURN_NONE);
else if (startsWith(line, "VERSION_ID="))
osVersion = afterFirst(line, '=', IF_MISSING_RETURN_NONE);
trim(osName, true, true, [](char c) { return c == '"' || c == '\''; });
trim(osVersion, true, true, [](char c) { return c == '"' || c == '\''; });
if (osName.empty()) throw SysError(formatSystemError("/etc/os-release", L"", L"NAME missing."));
//VERSION_ID usually available, except for Arch Linux: https://freefilesync.org/forum/viewtopic.php?t=7276
//PRETTY_NAME? too wordy! e.g. "Fedora 17 (Beefy Miracle)"
return utfTo<std::wstring>(trimCpy(osName + ' ' + osVersion)); //e.g. "CentOS Linux 7"
}
catch (const SysError& e) { throw FileError(_("Cannot get process information."), e.toString()); }
}
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