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//------------------------------------------------------------------------------
// <copyright file="versioninfo.cs" company="Microsoft">
// Copyright (c) Microsoft Corporation. All rights reserved.
// </copyright>
//------------------------------------------------------------------------------
/*
* Support for getting file versions
*
* Copyright (c) 1999 Microsoft Corporation
*/
namespace System.Web.Util {
using System.Diagnostics;
using System.Globalization;
using System.Reflection;
using System.Text;
using System.Runtime.Serialization.Formatters;
using System.Configuration.Assemblies;
using System.Security.Permissions;
//
// Support for getting file version of relevant files
//
internal class VersionInfo {
static private string _engineVersion;
static private string _mscoreeVersion;
static private string _exeName;
static private object _lock = new object();
private VersionInfo() {
}
[FileIOPermission(SecurityAction.Assert, Unrestricted = true)]
internal static string GetFileVersion(String filename) {
#if !FEATURE_PAL // FEATURE_PAL does not fully support FileVersionInfo
try {
FileVersionInfo ver = FileVersionInfo.GetVersionInfo(filename);
return string.Format(CultureInfo.InvariantCulture, "{0}.{1}.{2}.{3}",
ver.FileMajorPart, ver.FileMinorPart, ver.FileBuildPart, ver.FilePrivatePart);
}
catch {
return String.Empty;
}
#else // !FEATURE_PAL
// ROTORTODO
return String.Empty;
#endif // !FEATURE_PAL
}
internal static string GetLoadedModuleFileName(string module) {
#if !FEATURE_PAL // FEATURE_PAL does not fully support FileVersionInfo
IntPtr h = UnsafeNativeMethods.GetModuleHandle(module);
if (h == IntPtr.Zero)
return null;
StringBuilder buf = new StringBuilder(256);
if (UnsafeNativeMethods.GetModuleFileName(h, buf, 256) == 0)
return null;
String fileName = buf.ToString();
if (StringUtil.StringStartsWith(fileName, "\\\\?\\")) // on Whistler GetModuleFileName migth return this
fileName = fileName.Substring(4);
return fileName;
#else // !FEATURE_PAL
// ROTORTODO
return String.Empty;
#endif // !FEATURE_PAL
}
internal static string GetLoadedModuleVersion(string module) {
String filename = GetLoadedModuleFileName(module);
if (filename == null)
return null;
return GetFileVersion(filename);
}
internal static string SystemWebVersion {
get {
// Previously this represented the File version of mscorlib.dll. Many other libraries in the framework and outside took dependencies on the first three parts of this version
// remaining constant throughout 4.x. From 4.0 to 4.5.2 this was fine since the file version only incremented the last part. Starting with 4.6 we switched to a file versioning
// scheme that matched the product version. In order to preserve compatibility with existing libraries, this needs to be hard-coded.
return "4.0.30319.42000";
}
}
internal static string EngineVersion {
#if !FEATURE_PAL // FEATURE_PAL does not enable IIS-based hosting features
get {
if (_engineVersion == null) {
lock(_lock) {
if (_engineVersion == null)
_engineVersion = GetLoadedModuleVersion(ModName.ENGINE_FULL_NAME);
}
}
return _engineVersion;
#else // !FEATURE_PAL
// ROTORTODO
return "1.2.0.0";
#endif // !FEATURE_PAL
}
}
internal static string ClrVersion {
get {
if (_mscoreeVersion == null) {
lock(_lock) {
if (_mscoreeVersion == null) {
//@
// Substring(1) removes the 'v' character.
_mscoreeVersion =
System.Runtime.InteropServices.RuntimeEnvironment.GetSystemVersion().Substring(1);
}
}
}
return _mscoreeVersion;
}
}
internal static string ExeName {
get {
if (_exeName == null) {
lock(_lock) {
if (_exeName == null) {
String s = GetLoadedModuleFileName(null);
if (s == null)
s = String.Empty;
// strip path
int i = s.LastIndexOf('\\');
if (i >= 0)
s = s.Substring(i+1);
// strip extension
i = s.LastIndexOf('.');
if (i >= 0)
s = s.Substring(0, i);
_exeName = s.ToLower(CultureInfo.InvariantCulture);
}
}
}
return _exeName;
}
}
}
//
// Support for getting OS Flavor
//
internal enum OsFlavor {
Undetermined,
Other,
WebBlade,
StdServer,
AdvServer,
DataCenter,
}
}
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