System.Net.SSPIWrapper.EnumerateSecurityPackages C# (CSharp) Method

        internal static SecurityPackageInfoClass[] EnumerateSecurityPackages(SSPIInterface secModule)
        {
            if (NetEventSource.IsEnabled) NetEventSource.Enter(null);

            if (secModule.SecurityPackages == null)
            {
                lock (secModule)
                {
                    if (secModule.SecurityPackages == null)
                    {
                        int moduleCount = 0;
                        SafeFreeContextBuffer arrayBaseHandle = null;
                        try
                        {
                            int errorCode = secModule.EnumerateSecurityPackages(out moduleCount, out arrayBaseHandle);
                            if (NetEventSource.IsEnabled) NetEventSource.Info(null, $"arrayBase: {arrayBaseHandle}");
                            if (errorCode != 0)
                            {
                                throw new Win32Exception(errorCode);
                            }

                            var securityPackages = new SecurityPackageInfoClass[moduleCount];

                            int i;
                            for (i = 0; i < moduleCount; i++)
                            {
                                securityPackages[i] = new SecurityPackageInfoClass(arrayBaseHandle, i);
                                if (NetEventSource.IsEnabled) NetEventSource.Log.EnumerateSecurityPackages(securityPackages[i].Name);
                            }

                            secModule.SecurityPackages = securityPackages;
                        }
                        finally
                        {
                            if (arrayBaseHandle != null)
                            {
                                arrayBaseHandle.Dispose();
                            }
                        }
                    }
                }
            }

            if (NetEventSource.IsEnabled) NetEventSource.Exit(null);
            return secModule.SecurityPackages;
        }