This documentation is archived and is not being maintained.

SocketPermission::AddPermission Method

Adds a permission to the set of permissions for a transport address.

Namespace:  System.Net
Assembly:  System (in System.dll)

public:
void AddPermission(
	NetworkAccess access, 
	TransportType transport, 
	String^ hostName, 
	int portNumber
)

Parameters

access
Type: System.Net::NetworkAccess
One of the NetworkAccess values.
transport
Type: System.Net::TransportType
One of the TransportType values.
hostName
Type: System::String
The host name for the transport address.
portNumber
Type: System::Int32
The port number for the transport address.

ExceptionCondition
ArgumentNullException

hostName is nullptr.

The hostName can be a DNS name, an IP address, or a specified IP subnet, such as 192.168.1.*.

The following example uses the AddPermission method to add connection permissions to the specified host.


// <Snippet6>
      SocketPermission^ socketPermission1 = gcnew SocketPermission( PermissionState::Unrestricted );

      // Create a 'SocketPermission' Object* for two ip addresses.
      SocketPermission^ socketPermission2 = gcnew SocketPermission( PermissionState::None );
      SecurityElement^ securityElement1 = socketPermission2->ToXml();
      // 'SocketPermission' Object* for 'Connect' permission
      SecurityElement^ securityElement2 = gcnew SecurityElement( "ConnectAccess" );
      // Format to specify ip address are <ip-address>#<port>#<transport-type>
      // First 'SocketPermission' ip-address is '192.168.144.238' for 'All' transport types and
      // for 'All'ports for the ip-address.
      SecurityElement^ securityElement3 = gcnew SecurityElement( "URI","192.168.144.238#-1#3" );
      // Second 'SocketPermission' ip-address is '192.168.144.240' for 'All' transport types and
      // for 'All' ports for the ip-address.
      SecurityElement^ securityElement4 = gcnew SecurityElement( "URI","192.168.144.240#-1#3" );
      securityElement2->AddChild( securityElement3 );
      securityElement2->AddChild( securityElement4 );
      securityElement1->AddChild( securityElement2 );

      // Obtain a 'SocketPermission' Object* using 'FromXml' method.
      socketPermission2->FromXml( securityElement1 );

      Console::WriteLine( "\nDisplays the result of FromXml method : \n" );
      Console::WriteLine( socketPermission2 );

      // Create another 'SocketPermission' Object* with two ip addresses.
      // First 'SocketPermission' ip-address is '192.168.144.238' for 'All' transport types and for 'All' ports for the ip-address.
      SocketPermission^ socketPermission3 =
         gcnew SocketPermission( NetworkAccess::Connect,
            TransportType::All,
            "192.168.144.238",
            SocketPermission::AllPorts );

      // Second 'SocketPermission' ip-address is '192.168.144.239' for 'All' transport types and for 'All' ports for the ip-address.
      socketPermission3->AddPermission( NetworkAccess::Connect,
         TransportType::All,
         "192.168.144.239",
         SocketPermission::AllPorts );

      Console::WriteLine( "Displays the result of AddPermission method : \n" );
      Console::WriteLine( socketPermission3 );

      // Find the intersection between two 'SocketPermission' objects.
      socketPermission1 = dynamic_cast<SocketPermission^>(socketPermission2->Intersect( socketPermission3 ));

      Console::WriteLine( "Displays the result of Intersect method :\n " );
      Console::WriteLine( socketPermission1 );

      // Demand that the calling method have the requsite socket permission.
      socketPermission1->Demand();
// </Snippet3>


.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
Show: