tdlight/tdutils/td/utils/port/uname.cpp

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//
// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2020
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#include "td/utils/port/uname.h"
#include "td/utils/port/config.h"
#include "td/utils/common.h"
#include "td/utils/filesystem.h"
#include "td/utils/logging.h"
#include "td/utils/misc.h"
#include "td/utils/port/Stat.h"
#if TD_PORT_POSIX
#include <cstring>
#if TD_ANDROID
#include <sys/system_properties.h>
#else
#if TD_DARWIN
#include <sys/sysctl.h>
#include <sys/types.h>
#endif
#include <sys/utsname.h>
#endif
#endif
namespace td {
#if TD_DARWIN || TD_LINUX
static string read_os_name(CSlice os_version_file_path, CSlice prefix, CSlice suffix) {
auto r_stat = stat(os_version_file_path);
if (r_stat.is_ok() && r_stat.ok().is_reg_ && r_stat.ok().size_ < (1 << 16)) {
auto r_file = read_file_str(os_version_file_path, r_stat.ok().size_);
if (r_file.is_ok()) {
auto begin_pos = r_file.ok().find(prefix.c_str());
if (begin_pos != string::npos) {
begin_pos += prefix.size();
auto end_pos = r_file.ok().find(suffix.c_str(), begin_pos);
if (end_pos != string::npos) {
auto os_version = trim(r_file.ok().substr(begin_pos, end_pos - begin_pos));
if (os_version.find("\n") == string::npos) {
return os_version;
}
}
}
}
}
return string();
}
#endif
Slice get_operating_system_version() {
static string result = []() -> string {
#if TD_DARWIN
char version[256];
size_t size = sizeof(version);
string os_version;
if (sysctlbyname("kern.osproductversion", version, &size, nullptr, 0) == 0) {
os_version = trim(string(version, size));
}
if (os_version.empty()) {
os_version = read_os_name("/System/Library/CoreServices/SystemVersion.plist",
"<key>ProductUserVisibleVersion</key>\n\t<string>", "</string>\n");
}
if (!os_version.empty()) {
os_version = " " + os_version;
}
#if TD_DARWIN_IOS
return "iOS" + os_version;
#elif TD_DARWIN_TV_OS
return "tvOS" + os_version;
#elif TD_DARWIN_WATCH_OS
return "watchOS" + os_version;
#elif TD_DARWIN_MAC
return "macOS" + os_version;
#else
return "Darwin" + os_version;
#endif
#elif TD_PORT_POSIX
#if TD_ANDROID
char version[PROP_VALUE_MAX + 1];
int length = __system_property_get("ro.build.version.release", version);
if (length > 0) {
return "Android " + string(version, length);
}
#else
#if TD_LINUX
auto os_name = read_os_name("/etc/os-release", "PRETTY_NAME=\"", "\"\n");
if (!os_name.empty()) {
return os_name;
}
#endif
utsname name;
int err = uname(&name);
if (err == 0) {
auto os_name = trim(PSTRING() << Slice(name.sysname, std::strlen(name.sysname)) << " "
<< Slice(name.release, std::strlen(name.release)));
if (!os_name.empty()) {
return os_name;
}
}
#endif
LOG(ERROR) << "Failed to identify OS name; use generic one";
#if TD_ANDROID
return "Android";
#elif TD_TIZEN
return "Tizen";
#elif TD_LINUX
return "Linux";
#elif TD_FREEBSD
return "FreeBSD";
#elif TD_OPENBSD
return "OpenBSD";
#elif TD_NETBSD
return "NetBSD";
#elif TD_CYGWIN
return "Cygwin";
#elif TD_EMSCRIPTEN
return "Emscripten";
#else
return "Unix";
#endif
#else
#if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP | WINAPI_PARTITION_SYSTEM)
auto handle = GetModuleHandle(L"ntdll.dll");
if (handle != nullptr) {
using RtlGetVersionPtr = LONG(WINAPI *)(PRTL_OSVERSIONINFOEXW);
RtlGetVersionPtr RtlGetVersion = reinterpret_cast<RtlGetVersionPtr>(GetProcAddress(handle, "RtlGetVersion"));
if (RtlGetVersion != nullptr) {
RTL_OSVERSIONINFOEXW os_version_info = {};
os_version_info.dwOSVersionInfoSize = sizeof(os_version_info);
if (RtlGetVersion(&os_version_info) == 0) {
auto major = os_version_info.dwMajorVersion;
auto minor = os_version_info.dwMinorVersion;
bool is_server = os_version_info.wProductType != VER_NT_WORKSTATION;
if (major == 10 && minor >= 0) {
if (is_server) {
return os_version_info.dwBuildNumber >= 17623 ? "Windows Server 2019" : "Windows Server 2016";
}
return "Windows 10";
}
if (major == 6 && minor == 3) {
return is_server ? "Windows Server 2012 R2" : "Windows 8.1";
}
if (major == 6 && minor == 2) {
return is_server ? "Windows Server 2012" : "Windows 8";
}
if (major == 6 && minor == 1) {
return is_server ? "Windows Server 2008 R2" : "Windows 7";
}
if (major == 6 && minor == 0) {
return is_server ? "Windows Server 2008" : "Windows Vista";
}
return is_server ? "Windows Server" : "Windows";
}
}
}
#elif TD_WINRT
return "Windows 10";
#endif
LOG(ERROR) << "Failed to identify OS name; use generic one";
return "Windows";
#endif
}();
return result;
}
} // namespace td