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// ==++==
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
// ==--==
/*=============================================================================
**
** Class: RuntimeEnvironment
**
**
** Purpose: Runtime information
**
**
=============================================================================*/
using System;
using System.Text;
using System.IO;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
using System.Security;
using System.Security.Permissions;
using System.Reflection;
using Microsoft.Win32;
using System.Runtime.Versioning;
using StackCrawlMark = System.Threading.StackCrawlMark;
namespace System.Runtime.InteropServices {
[System.Runtime.InteropServices.ComVisible(true)]
#if FEATURE_CORECLR
static
#endif
public class RuntimeEnvironment {
#if !FEATURE_CORECLR
// This should have been a static class, but wasn't as of v3.5. Clearly, this is
// broken. We'll keep this in V4 for binary compat, but marked obsolete as error
// so migrated source code gets fixed. On Silverlight, this type exists but is
// not public.
[Obsolete("Do not create instances of the RuntimeEnvironment class. Call the static methods directly on this type instead", true)]
public RuntimeEnvironment()
{
// Should not have been instantiable - here for binary compatibility in V4.
}
#endif
#if !MONO
[System.Security.SecurityCritical] // auto-generated
[ResourceExposure(ResourceScope.Machine)]
[MethodImplAttribute(MethodImplOptions.InternalCall)]
internal static extern String GetModuleFileName();
[System.Security.SecurityCritical] // auto-generated
[ResourceExposure(ResourceScope.Machine)]
[MethodImplAttribute(MethodImplOptions.InternalCall)]
internal static extern String GetDeveloperPath();
[System.Security.SecurityCritical] // auto-generated
[ResourceExposure(ResourceScope.Machine)]
[MethodImplAttribute(MethodImplOptions.InternalCall)]
internal static extern String GetHostBindingFile();
#endif
#if !FEATURE_CORECLR && !MONO
[System.Security.SecurityCritical] // auto-generated
[ResourceExposure(ResourceScope.None)]
[DllImport(JitHelpers.QCall, CharSet = CharSet.Unicode)]
[SuppressUnmanagedCodeSecurity]
internal static extern void _GetSystemVersion(StringHandleOnStack retVer);
#endif //!FEATURE_CORECLR
public static bool FromGlobalAccessCache(Assembly a)
{
return a.GlobalAssemblyCache;
}
#if !FEATURE_CORECLR
[System.Security.SecuritySafeCritical] // public member
#endif
[MethodImpl (MethodImplOptions.NoInlining)]
public static String GetSystemVersion()
{
#if FEATURE_CORECLR || MONO
return Assembly.GetExecutingAssembly().ImageRuntimeVersion;
#else // FEATURE_CORECLR
String ver = null;
_GetSystemVersion(JitHelpers.GetStringHandleOnStack(ref ver));
return ver;
#endif // FEATURE_CORECLR
}
[System.Security.SecuritySafeCritical] // auto-generated
[ResourceExposure(ResourceScope.Machine)]
[ResourceConsumption(ResourceScope.Machine)]
public static String GetRuntimeDirectory()
{
#if !MOBILE
//
// Workaround for csc hardcoded behaviour where executing mscorlib
// location is always the first path to search for references unless
// they have full path. Mono build is using simple assembly names for
// references and -lib for path which is by default csc dehaviour never
// used
//
var sdk = Environment.GetEnvironmentVariable ("CSC_SDK_PATH_DISABLED");
if (sdk != null)
return null;
#endif
String dir = GetRuntimeDirectoryImpl();
#if MONO_FEATURE_CAS
new FileIOPermission(FileIOPermissionAccess.PathDiscovery, dir).Demand();
#endif
return dir;
}
#if MONO
static String GetRuntimeDirectoryImpl()
{
return Path.GetDirectoryName (typeof (object).Assembly.Location);
}
#else
[System.Security.SecurityCritical] // auto-generated
[ResourceExposure(ResourceScope.Machine)]
[MethodImplAttribute(MethodImplOptions.InternalCall)]
internal static extern String GetRuntimeDirectoryImpl();
#endif
// Returns the system ConfigurationFile
public static String SystemConfigurationFile {
[System.Security.SecuritySafeCritical] // auto-generated
[ResourceExposure(ResourceScope.Machine)]
[ResourceConsumption(ResourceScope.Machine)]
get {
#if MONO
String path = Environment.GetMachineConfigPath ();
#else
StringBuilder sb = new StringBuilder(Path.MAX_PATH);
sb.Append(GetRuntimeDirectory());
sb.Append(AppDomainSetup.RuntimeConfigurationFile);
String path = sb.ToString();
#endif
#if MONO_FEATURE_CAS
// Do security check
new FileIOPermission(FileIOPermissionAccess.PathDiscovery, path).Demand();
#endif
return path;
}
}
#if FEATURE_COMINTEROP || MONO
#if MONO
private static IntPtr GetRuntimeInterfaceImpl(Guid clsid, Guid riid)
{
throw new NotSupportedException();
}
#else
[System.Security.SecurityCritical]
[ResourceExposure(ResourceScope.Process)]
[ResourceConsumption(ResourceScope.Process)]
[DllImport(JitHelpers.QCall, CharSet = CharSet.Unicode)]
[SuppressUnmanagedCodeSecurity]
private static extern IntPtr GetRuntimeInterfaceImpl(
[In, MarshalAs(UnmanagedType.LPStruct)] Guid clsid,
[In, MarshalAs(UnmanagedType.LPStruct)] Guid riid);
#endif
//
// This function does the equivalent of calling GetInterface(clsid, riid) on the
// ICLRRuntimeInfo representing this runtime. See MetaHost.idl for a list of
// CLSIDs and IIDs supported by this method.
//
// Returns unmanaged pointer to requested interface on success. Throws
// COMException with failed HR if there is a QI failure.
//
[System.Security.SecurityCritical] // do not allow partial trust callers
[ComVisible(false)]
[ResourceExposure(ResourceScope.Process)]
[ResourceConsumption(ResourceScope.Process)]
public static IntPtr GetRuntimeInterfaceAsIntPtr(Guid clsid, Guid riid)
{
return GetRuntimeInterfaceImpl(clsid, riid);
}
//
// This function does the equivalent of calling GetInterface(clsid, riid) on the
// ICLRRuntimeInfo representing this runtime. See MetaHost.idl for a list of
// CLSIDs and IIDs supported by this method.
//
// Returns an RCW to requested interface on success. Throws
// COMException with failed HR if there is a QI failure.
//
[System.Security.SecurityCritical] // do not allow partial trust callers
[ComVisible(false)]
[ResourceExposure(ResourceScope.Process)]
[ResourceConsumption(ResourceScope.Process)]
public static object GetRuntimeInterfaceAsObject(Guid clsid, Guid riid)
{
IntPtr p = IntPtr.Zero;
try {
p = GetRuntimeInterfaceImpl(clsid, riid);
return Marshal.GetObjectForIUnknown(p);
} finally {
if(p != IntPtr.Zero) {
Marshal.Release(p);
}
}
}
#endif // FEATURE_COMINTEROP
}
}
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