#include "il2cpp-config.h"
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#if !IL2CPP_USE_GENERIC_ENVIRONMENT && IL2CPP_TARGET_WINDOWS
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#include "WindowsHelpers.h"
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#if !IL2CPP_TARGET_XBOXONE && !IL2CPP_TARGET_WINDOWS_GAMES
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#include <Shlobj.h>
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#endif
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// Windows.h defines GetEnvironmentVariable as GetEnvironmentVariableW for unicode and this will
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// change the string "Environment::GetEnvironmentVariable" below to "Environment::GetEnvironmentVariableW"
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// in the preprocessor. So we undef to avoid this issue and use GetEnvironmentVariableW directly.
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// Same for SetEnvironmentVariable
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#undef GetEnvironmentVariable
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#undef SetEnvironmentVariable
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#include "os/Environment.h"
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#include "utils/StringUtils.h"
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#include <string>
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#include <assert.h>
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#define BUFFER_SIZE 1024
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namespace il2cpp
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{
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namespace os
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{
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std::string Environment::GetMachineName()
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{
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Il2CppChar computerName[MAX_COMPUTERNAME_LENGTH + 1];
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DWORD size = sizeof(computerName) / sizeof(computerName[0]);
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if (!GetComputerNameW(computerName, &size))
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return NULL;
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return utils::StringUtils::Utf16ToUtf8(computerName);
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}
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int32_t Environment::GetProcessorCount()
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{
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SYSTEM_INFO info;
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GetSystemInfo(&info);
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return info.dwNumberOfProcessors;
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}
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// GetVersionEx is deprecated on desktop in Windows SDK, and we shim it for WinRT
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#pragma warning( push )
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#pragma warning( disable : 4996 )
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std::string Environment::GetOsVersionString()
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{
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OSVERSIONINFO verinfo;
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verinfo.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
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if (GetVersionEx(&verinfo))
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{
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char version[64];
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/* maximum string length is 35 bytes
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3 x 10 bytes per number, 1 byte for 0, 3 x 1 byte for dots, 1 for NULL */
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sprintf(version, "%ld.%ld.%ld.0",
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verinfo.dwMajorVersion,
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verinfo.dwMinorVersion,
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verinfo.dwBuildNumber);
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return version;
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}
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return "0.0.0.0";
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}
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#pragma warning( pop )
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std::string Environment::GetOsUserName()
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{
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#if !IL2CPP_TARGET_WINDOWS_GAMES
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Il2CppChar user_name[256 + 1];
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DWORD user_name_size = ARRAYSIZE(user_name);
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if (GetUserNameW(user_name, &user_name_size))
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return utils::StringUtils::Utf16ToUtf8(user_name);
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#endif // !IL2CPP_TARGET_WINDOWS_GAMES
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return "Unknown";
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}
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std::string Environment::GetEnvironmentVariable(const std::string& name)
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{
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std::vector<Il2CppChar> buffer(BUFFER_SIZE);
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const UTF16String varName = utils::StringUtils::Utf8ToUtf16(name.c_str());
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DWORD ret = GetEnvironmentVariableW(varName.c_str(), &buffer[0], BUFFER_SIZE);
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if (ret == 0) // Not found
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return std::string();
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if (ret < BUFFER_SIZE) // Found and fits into buffer
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return utils::StringUtils::Utf16ToUtf8(&buffer[0]);
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// Requires bigger buffer
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IL2CPP_ASSERT(ret >= BUFFER_SIZE);
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buffer.resize(ret + 1);
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ret = GetEnvironmentVariableW(varName.c_str(), &buffer[0], ret + 1);
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IL2CPP_ASSERT(ret != 0);
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return utils::StringUtils::Utf16ToUtf8(&buffer[0]);
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}
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void Environment::SetEnvironmentVariable(const std::string& name, const std::string& value)
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{
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const UTF16String varName = utils::StringUtils::Utf8ToUtf16(name.c_str());
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if (value.empty())
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SetEnvironmentVariableW((LPWSTR)varName.c_str(), NULL);
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else
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{
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const UTF16String varValue = utils::StringUtils::Utf8ToUtf16(value.c_str());
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SetEnvironmentVariableW((LPWSTR)varName.c_str(), (LPWSTR)varValue.c_str());
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}
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}
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std::vector<std::string> Environment::GetEnvironmentVariableNames()
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{
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WCHAR* env_strings;
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WCHAR* env_string;
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WCHAR* equal_str;
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std::vector<std::string> result;
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env_strings = GetEnvironmentStringsW();
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if (env_strings)
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{
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env_string = env_strings;
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while (*env_string != '\0')
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{
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// Skip over environment variables starting with '='
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if (*env_string != '=')
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{
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equal_str = wcschr(env_string, '=');
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result.push_back(utils::StringUtils::Utf16ToUtf8(env_string, (int)(equal_str - env_string)));
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}
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while (*env_string != '\0')
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env_string++;
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env_string++;
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}
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FreeEnvironmentStringsW(env_strings);
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}
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return result;
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}
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std::string Environment::GetHomeDirectory()
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{
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#if IL2CPP_TARGET_WINDOWS_DESKTOP
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std::string home_directory;
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PWSTR profile_path = NULL;
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HRESULT hr = SHGetKnownFolderPath(FOLDERID_Profile, KF_FLAG_DEFAULT, NULL, &profile_path);
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if (SUCCEEDED(hr))
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{
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home_directory = utils::StringUtils::Utf16ToUtf8(profile_path);
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CoTaskMemFree(profile_path);
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}
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if (home_directory.empty())
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{
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home_directory = GetEnvironmentVariable("USERPROFILE");
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}
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if (home_directory.empty())
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{
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std::string drive = GetEnvironmentVariable("HOMEDRIVE");
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std::string path = GetEnvironmentVariable("HOMEPATH");
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if (!drive.empty() && !path.empty())
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home_directory = drive + path;
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}
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return home_directory;
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#else
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IL2CPP_NOT_IMPLEMENTED_ICALL(Environment::GetHomeDirectory);
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return std::string();
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#endif
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}
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std::vector<std::string> SplitLogicalDriveString(Il2CppChar *buffer, DWORD size)
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{
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std::vector<std::string> retVal;
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Il2CppChar *ptr = buffer;
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for (DWORD i = 0; i < size; ++i)
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{
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Il2CppChar c = buffer[i];
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if (c == 0)
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{
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retVal.push_back(utils::StringUtils::Utf16ToUtf8(ptr));
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ptr = &buffer[i + 1];
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}
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}
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return retVal;
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}
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std::vector<std::string> Environment::GetLogicalDrives()
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{
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#if IL2CPP_TARGET_WINDOWS_DESKTOP
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std::vector<Il2CppChar> buffer(BUFFER_SIZE);
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DWORD size = GetLogicalDriveStringsW(BUFFER_SIZE, &buffer[0]);
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if (size == 0)
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return std::vector<std::string>();
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if (size > BUFFER_SIZE)
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{
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buffer.resize(size + 1);
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size = GetLogicalDriveStringsW(size + 1, &buffer[0]);
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IL2CPP_ASSERT(size != 0);
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}
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return SplitLogicalDriveString(&buffer[0], size);
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#else
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return std::vector<std::string>();
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#endif
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}
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void Environment::Exit(int result)
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{
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::exit(result);
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}
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NORETURN void Environment::Abort()
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{
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// __fastfail() is available since VS2012
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#if _MSC_VER >= 1700
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__fastfail(FAST_FAIL_FATAL_APP_EXIT);
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#else
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abort();
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#endif
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}
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#if IL2CPP_TARGET_WINDOWS_DESKTOP
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std::string Environment::GetWindowsFolderPath(int32_t folder)
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{
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Il2CppChar path[MAX_PATH];
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if (SUCCEEDED(SHGetFolderPathW(NULL, folder | CSIDL_FLAG_CREATE, NULL, 0, path)))
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return utils::StringUtils::Utf16ToUtf8(path);
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return std::string();
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}
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typedef BOOL(WINAPI *LPFN_ISWOW64PROCESS) (HANDLE, PBOOL);
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bool Environment::Is64BitOs()
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{
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BOOL isWow64Process = false;
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// Supported on XP SP2 and higher
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//IsWow64Process is not available on all supported versions of Windows.
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//Use GetModuleHandle to get a handle to the DLL that contains the function
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//and GetProcAddress to get a pointer to the function if available.
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LPFN_ISWOW64PROCESS fnIsWow64Process = (LPFN_ISWOW64PROCESS)GetProcAddress(
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GetModuleHandle(TEXT("kernel32")), "IsWow64Process");
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if (NULL != fnIsWow64Process)
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{
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if (fnIsWow64Process(GetCurrentProcess(), &isWow64Process))
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{
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return isWow64Process == TRUE;
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}
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}
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return false;
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}
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#elif IL2CPP_TARGET_WINDOWS_GAMES
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std::string Environment::GetWindowsFolderPath(int32_t folder)
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{
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return std::string();
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}
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bool Environment::Is64BitOs()
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{
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#if _WIN64 // the IsWow64Process(used above) function is not available on Windows Games,this is the best available.
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return true;
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#else
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return false;
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#endif
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}
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#endif
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}
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}
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#endif
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