Utilities.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / cdf / src / WCF / Tools / WSATConfig / Configuration / Utilities.cs / 1305376 / Utilities.cs
                        

                        
                            //------------------------------------------------------------------------------ 
// Copyright (c) Microsoft Corporation.  All rights reserved.
//-----------------------------------------------------------------------------

namespace Microsoft.Tools.ServiceModel.WsatConfig 
{
    using System; 
    using System.IO; 
    using System.Text;
    using System.Diagnostics; 
    using System.Runtime.InteropServices;

    static class Utilities
    { 
        static Nullable isHttpApiLibAvailable;
        static string localizedMyComputerString; 
 
        internal static void Log(string s)
        { 
            /*using (StreamWriter sw = new StreamWriter("c:\\wsat.log", true))
            {
                sw.WriteLine(s);
                sw.Flush(); 
                sw.Close();
            }*/ 
        } 
        internal static bool SafeCompare(string s1, string s2)
        { 
            return string.Compare(s1, s2, StringComparison.OrdinalIgnoreCase) == 0;
        }

        internal static int OSMajor 
        {
            get { return System.Environment.OSVersion.Version.Major; } 
        } 

        internal static int GetOSMajor(string machineName) 
        {
            if (IsLocalMachineName(machineName))
            {
                return OSMajor; 
            }
 
            int result = 0; 

            try 
            {
                IntPtr workstationPtr;
                const int WorkstationInformationLevel = 100;
                int hr = SafeNativeMethods.NetWkstaGetInfo( 
                        @"\\" + machineName,
                        WorkstationInformationLevel, 
                        out workstationPtr); 

                if (hr == SafeNativeMethods.NERR_Success && workstationPtr != IntPtr.Zero) 
                {
                    try
                    {
                        SafeNativeMethods.WKSTA_INFO_100 workstationInfo = (SafeNativeMethods.WKSTA_INFO_100)Marshal.PtrToStructure(workstationPtr, typeof(SafeNativeMethods.WKSTA_INFO_100)); 
                        result = workstationInfo.ver_major;
                    } 
                    finally 
                    {
#pragma warning suppress 56523 
                        hr = SafeNativeMethods.NetApiBufferFree(workstationPtr);
                    }
                    workstationPtr = IntPtr.Zero;
                } 
            }
#pragma warning suppress 56500 
            catch (Exception ex) 
            {
                if (Utilities.IsCriticalException(ex)) 
                {
                    throw;
                }
            } 

            return result; 
        } 

#if WSAT_CMDLINE 
        internal static string GetEnabledStatusString(bool enabled)
        {
            return enabled ? SR.GetString(SR.ConfigStatusEnabled) : SR.GetString(SR.ConfigStatusDiabled);
        } 
#endif
 
        // We do not parse ActivityTracing in this function 
        internal static bool ParseSourceLevel(string levelString, out SourceLevels level)
        { 
            level = SourceLevels.Off;

            if (Utilities.SafeCompare(levelString, CommandLineOption.TracingOff))
            { 
                level = SourceLevels.Off;
            } 
            else if (Utilities.SafeCompare(levelString, CommandLineOption.TracingError)) 
            {
                level = SourceLevels.Error; 
            }
            else if (Utilities.SafeCompare(levelString, CommandLineOption.TracingCritical))
            {
                level = SourceLevels.Critical; 
            }
            else if (Utilities.SafeCompare(levelString, CommandLineOption.TracingWarning)) 
            { 
                level = SourceLevels.Warning;
            } 
            else if (Utilities.SafeCompare(levelString, CommandLineOption.TracingInformation))
            {
                level = SourceLevels.Information;
            } 
            else if (Utilities.SafeCompare(levelString, CommandLineOption.TracingVerbose))
            { 
                level = SourceLevels.Verbose; 
            }
            else if (Utilities.SafeCompare(levelString, CommandLineOption.TracingAll)) 
            {
                level = SourceLevels.All;
            }
            else 
            {
                return false; 
            } 

            return true; 
        }

        internal static string LocalHostName
        { 
            get
            { 
                string hostName; 
                try
                { 
                    hostName = System.Net.Dns.GetHostName();
                }
                catch (System.Net.Sockets.SocketException)
                { 
                    hostName = null;
                } 
                return hostName; 
            }
        } 
        internal static bool IsLocalMachineName(string machineName)
        {
            const string comResDllName = "ComRes.dll";
            const string englishMyComputer = "My Computer"; 
            const int IDS_MYCOMPUTER = 1824;    // resource id for My Computer in ComRes.dll
 
            if (localizedMyComputerString == null) 
            {
                // default value 
                localizedMyComputerString = englishMyComputer;

#pragma warning suppress 56523
                IntPtr comResDll = SafeNativeMethods.LoadLibrary(comResDllName); 
                if (comResDll != IntPtr.Zero)
                { 
                    StringBuilder sb; 
                    int len, size = 16;
                    do 
                    {
                        sb = new StringBuilder(size);
#pragma warning suppress 56523
                        len = SafeNativeMethods.LoadString(comResDll, IDS_MYCOMPUTER, sb, size); 
                        if (len > 0 && len < size)
                        { 
                            localizedMyComputerString = sb.ToString(); 
                            break;
                        } 
                        size *= 2;
                    } while (len > 0);
#pragma warning suppress 56523
                    SafeNativeMethods.FreeLibrary(comResDll); 
                }
            } 
 
            return (string.IsNullOrEmpty(machineName) || SafeCompare(machineName, "localhost") ||
                    SafeCompare(machineName, localizedMyComputerString) || SafeCompare(machineName, LocalHostName)); 
        }

        // code from System\ServiceModel\Install\InstallUtil.cs
        internal static bool IsHttpApiLibAvailable 
        {
            get 
            { 
                if (!isHttpApiLibAvailable.HasValue)
                { 
                    isHttpApiLibAvailable = IsHttpApiLibAvailableHelper();
                }

                return (bool)isHttpApiLibAvailable.Value; 
            }
        } 
 
        static bool IsHttpApiLibAvailableHelper()
        { 
            bool retVal = false;
            int retCode = SafeNativeMethods.NoError;

            try 
            {
                retCode = SafeNativeMethods.HttpInitialize(new HttpApiVersion(1, 0), SafeNativeMethods.HTTP_INITIALIZE_CONFIG, IntPtr.Zero); 
                SafeNativeMethods.HttpTerminate(SafeNativeMethods.HTTP_INITIALIZE_CONFIG, IntPtr.Zero); 
                if (retCode != SafeNativeMethods.NoError)
                { 
                    retVal = false;
                }
                else
                { 
                    retVal = true;
                } 
            } 
            catch (System.IO.FileNotFoundException)
            { 
                retVal = false;
            }

            return retVal; 
        }
 
        internal static bool IsCriticalException(Exception e) 
        {
            return (e is System.AccessViolationException) || (e is System.StackOverflowException) || 
                (e is System.OutOfMemoryException) || (e is System.InvalidOperationException) ||
                (e is System.Threading.ThreadAbortException);
        }
    } 
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.

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