TFTPServer Control

Properties Methods Events Config Settings Errors

The TFTPServer Control is used to create a TFTP Server.

Syntax

TFTPServer

Remarks

The TFTPServer control provides a simple way to create a TFTP server. Any TFTP client will be able to connect and transfer files to and from the server.

Getting Started

By default, the server will listen on port 69. You can specify the listening port by setting the LocalPort property.

Optionally set the LocalDir property to a valid local path. If this property is set the control will serve files from this location. When clients connect, they can request files from this location. If this property is not set then the control will fire events allowing customized responses for each operation.

To start the server, call the StartListening method.

Handling Events

Event handlers are the primary method of customizing the control's functionality. When a client attempts to connect, open a file, etc, the corresponding TFTPServer event will fire to allow for custom handling of the client's request.

The following events are fired once the requested operation is executed:

Error
Log
Connected
ConnectionRequest
Disconnected
EndTransfer
StartTransfer
Transfer

Property List

The following is the full list of the properties of the control with short descriptions. Click on the links for further details.


ConnCount	The number of records in the Conn arrays.
ConnConnectionId	This property contains a unique indentifier for this connection.
ConnFileData	This property is only available for sending data to a connected client.
ConnFilename	This property represents the Filename of the file the client wants to upload or download.
ConnLocalFile	This is the local file on the server.
ConnRemoteHost	This property represents the IP address of the connected client.
ConnRemotePort	This property represents the port of the connected client.
ConnTransferMode	Transfers are done in octet mode 0 or netascii mode 1 .
Listening	If set to True, the control accepts incoming connections on LocalPort.
LocalDir	The local file directory for the server.
LocalHost	The name of the local host or user-assigned IP interface through which connections are initiated or accepted.
LocalPort	This is the port that the server will listen on.
MaxRetransmits	The number of times to retry sending a failed packet before disconnecting.
RetransmitTimeout	Maximum time in seconds to wait for a reply packet from the server before retransmitting the last packet.
Timeout	A timeout for the control.

Method List

The following is the full list of the methods of the control with short descriptions. Click on the links for further details.


Config	Sets or retrieves a configuration setting.
DoEvents	Processes events from the internal message queue.
StartListening	This method starts listening for incoming connections.
StopListening	This method stops listening for new connections.

Event List

The following is the full list of the events fired by the control with short descriptions. Click on the links for further details.


Connected	This event fires immediately after a connection completes (or fails).
ConnectionRequest	This event fires anytime a connected client attempts a connection to the server.
Disconnected	This event fires after a transfer is completed.
EndTransfer	This event fires once a transfer is completed.
Error	Fired when information is available about errors during data delivery.
Log	This event fires once for each log message.
StartTransfer	This event fires immediately after a client initiates a file transfer.
Transfer	This event fires repeatedly while data is being transferred. A transfer is marked as complete once a packet that is less than 512 bytes is received.

Config Settings

The following is a list of config settings for the control with short descriptions. Click on the links for further details.


DefaultRollOverNumber	Whether to enable block roll over.
CaptureIPPacketInfo	Used to capture the packet information.
DelayHostResolution	Whether the hostname is resolved when RemoteHost is set.
DestinationAddress	Used to get the destination address from the packet information.
DontFragment	Used to set the Don't Fragment flag of outgoing packets.
LocalHost	The name of the local host through which connections are initiated or accepted.
LocalPort	The port in the local host where the control binds.
MaxPacketSize	The maximum length of the packets that can be received.
QOSDSCPValue	Used to specify an arbitrary QOS/DSCP setting (optional).
QOSTrafficType	Used to specify QOS/DSCP settings (optional).
ShareLocalPort	If set to True, allows more than one instance of the control to be active on the same local port.
UseConnection	Determines whether to use a connected socket.
UseIPv6	Whether or not to use IPv6.
AbsoluteTimeout	Determines whether timeouts are inactivity timeouts or absolute timeouts.
FirewallData	Used to send extra data to the firewall.
InBufferSize	The size in bytes of the incoming queue of the socket.
OutBufferSize	The size in bytes of the outgoing queue of the socket.
CodePage	The system code page used for Unicode to Multibyte translations.
MaskSensitive	Whether sensitive data is masked in log messages.
UseInternalSecurityAPI	Whether or not to use the system security libraries or an internal implementation.

ConnCount Property (TFTPServer Control)

The number of records in the Conn arrays.

Syntax

tftpservercontrol.ConnCount

Default Value

Remarks

This property controls the size of the following arrays:

ConnConnectionId
ConnFileData
ConnFilename
ConnLocalFile
ConnRemoteHost
ConnRemotePort
ConnTransferMode

The array indices start at 0 and end at ConnCount - 1.

This property is read-only and not available at design time.

Data Type

Integer

ConnConnectionId Property (TFTPServer Control)

This property contains a unique indentifier for this connection.

Syntax

tftpservercontrol.ConnConnectionId(ConnId)

Default Value

Remarks

This field contains a unique indentifier for this connection.

The ConnId parameter specifies the index of the item in the array. The size of the array is controlled by the ConnCount property.

This property is read-only and not available at design time.

Data Type

String

ConnFileData Property (TFTPServer Control)

This property is only available for sending data to a connected client.

Syntax

tftpservercontrol.ConnFileData(ConnId)[=string]

Default Value

Remarks

This property is only available for sending data to a connected client. If this property is set, then this will be the data sent when a connected client attempts to download a file from the server.

The ConnId parameter specifies the index of the item in the array. The size of the array is controlled by the ConnCount property.

To read or write binary data to the property, a Variant (Byte Array) version is provided in .ConnFileDataB.

This property is not available at design time.

Data Type

Binary String

ConnFilename Property (TFTPServer Control)

This property represents the Filename of the file the client wants to upload or download.

Syntax

tftpservercontrol.ConnFilename(ConnId)

Default Value

Remarks

This property represents the Filename of the file the client wants to upload or download. Note: FileData must be empty in order to use this property.

The ConnId parameter specifies the index of the item in the array. The size of the array is controlled by the ConnCount property.

This property is read-only and not available at design time.

Data Type

String

ConnLocalFile Property (TFTPServer Control)

This is the local file on the server.

Syntax

tftpservercontrol.ConnLocalFile(ConnId)[=string]

Default Value

Remarks

This is the local file on the server. This file is written to when a client puts a file, and data is pulled from this file when a client requests a file.

The ConnId parameter specifies the index of the item in the array. The size of the array is controlled by the ConnCount property.

This property is not available at design time.

Data Type

String

ConnRemoteHost Property (TFTPServer Control)

This property represents the IP address of the connected client.

Syntax

tftpservercontrol.ConnRemoteHost(ConnId)

Default Value

Remarks

This property represents the IP address of the connected client.

The ConnId parameter specifies the index of the item in the array. The size of the array is controlled by the ConnCount property.

This property is read-only and not available at design time.

Data Type

String

ConnRemotePort Property (TFTPServer Control)

This property represents the port of the connected client.

Syntax

tftpservercontrol.ConnRemotePort(ConnId)

Default Value

Remarks

This property represents the port of the connected client.

The ConnId parameter specifies the index of the item in the array. The size of the array is controlled by the ConnCount property.

This property is read-only and not available at design time.

Data Type

Integer

ConnTransferMode Property (TFTPServer Control)

Transfers are done in octet mode 0 or netascii mode 1 .

Syntax

tftpservercontrol.ConnTransferMode(ConnId)

Default Value

Remarks

Transfers are done in octet mode 0 or netascii mode 1.

The ConnId parameter specifies the index of the item in the array. The size of the array is controlled by the ConnCount property.

This property is read-only and not available at design time.

Data Type

String

Listening Property (TFTPServer Control)

If set to True, the control accepts incoming connections on LocalPort.

Syntax

tftpservercontrol.Listening[=boolean]

Default Value

False

Remarks

This property indicates whether the control is listening for connections on the port specified by the LocalPort property.

Note: Use the StartListening and StopListening methods to control whether the control is listening.

This property is not available at design time.

Data Type

Boolean

LocalDir Property (TFTPServer Control)

The local file directory for the server.

Syntax

tftpservercontrol.LocalDir[=string]

Default Value

Remarks

This property defines the local file directory on the server. Files can be downloaded to or uploaded from this directory.

This property is not available at design time.

Data Type

String

LocalHost Property (TFTPServer Control)

The name of the local host or user-assigned IP interface through which connections are initiated or accepted.

Syntax

tftpservercontrol.LocalHost[=string]

Default Value

Remarks

The LocalHost property contains the name of the local host as obtained by the gethostname() system call, or if the user has assigned an IP address, the value of that address.

In multi-homed hosts (machines with more than one IP interface) setting LocalHost to the value of an interface will make the control initiate connections (or accept in the case of server controls) only through that interface.

If the control is connected, the LocalHost property shows the IP address of the interface through which the connection is made in internet dotted format (aaa.bbb.ccc.ddd). In most cases, this is the address of the local host, except for multi-homed hosts (machines with more than one IP interface).

NOTE: LocalHost is not persistent. You must always set it in code, and never in the property window.

Data Type

String

LocalPort Property (TFTPServer Control)

This is the port that the server will listen on.

Syntax

tftpservercontrol.LocalPort[=integer]

Default Value

Remarks

This property contains the port that the TFTP Server listens on. The default value is 69.

Data Type

Integer

MaxRetransmits Property (TFTPServer Control)

The number of times to retry sending a failed packet before disconnecting.

Syntax

tftpservercontrol.MaxRetransmits[=integer]

Default Value

Remarks

This property allows you to specify the number of times that you would like to try re-sending the last data packet if the original packet fails.

The RetransmitTimeout determines the wait time (in seconds) between successive retransmissions.

The default value for the MaxRetransmits property is 3.

Data Type

Integer

RetransmitTimeout Property (TFTPServer Control)

Maximum time in seconds to wait for a reply packet from the server before retransmitting the last packet.

Syntax

tftpservercontrol.RetransmitTimeout[=integer]

Default Value

Remarks

Please refer to the MaxRetransmits property for the number of retransmit efforts before an error is returned.

The default value for the RetransmitTimeout is 5 seconds.

Data Type

Integer

Timeout Property (TFTPServer Control)

A timeout for the control.

Syntax

tftpservercontrol.Timeout[=integer]

Default Value

Remarks

If the Timeout property is set to 0, all operations will run uninterrupted until successful completion or an error condition is encountered.

If Timeout is set to a positive value, the control will wait for the operation to complete before returning control.

The control will use DoEvents to enter an efficient wait loop during any potential waiting period, making sure that all system events are processed immediately as they arrive. This ensures that the host application does not "freeze" and remains responsive.

If Timeout expires, and the operation is not yet complete, the control fails with an error.

Please note that by default, all timeouts are inactivity timeouts, i.e. the timeout period is extended by Timeout seconds when any amount of data is successfully sent or received.

The default value for the Timeout property is 60 seconds.

Data Type

Integer

Config Method (TFTPServer Control)

Sets or retrieves a configuration setting.

Syntax

tftpservercontrol.Config ConfigurationString

Remarks

Config is a generic method available in every control. It is used to set and retrieve configuration settings for the control.

These settings are similar in functionality to properties, but they are rarely used. In order to avoid "polluting" the property namespace of the control, access to these internal properties is provided through the Config method.

To set a configuration setting named PROPERTY, you must call Config("PROPERTY=VALUE"), where VALUE is the value of the setting expressed as a string. For boolean values, use the strings "True", "False", "0", "1", "Yes", or "No" (case does not matter).

To read (query) the value of a configuration setting, you must call Config("PROPERTY"). The value will be returned as a string.

DoEvents Method (TFTPServer Control)

Processes events from the internal message queue.

Syntax

tftpservercontrol.DoEvents

Remarks

When DoEvents is called, the control processes any available events. If no events are available, it waits for a preset period of time, and then returns.

StartListening Method (TFTPServer Control)

This method starts listening for incoming connections.

Syntax

tftpservercontrol.StartListening

Remarks

This method begins listening for incoming connections on the port specified by LocalPort. Once listening, events will fire as new clients connect and data are transferred.

To stop listening for new connections, call StopListening. To stop listening for new connections and to disconnect all existing clients, call Shutdown.

StopListening Method (TFTPServer Control)

This method stops listening for new connections.

Syntax

tftpservercontrol.StopListening

Remarks

This method stops listening for new connections. After being called, any new connection attempts will be rejected. Calling this method does not disconnect existing connections.

To stop listening and to disconnect all existing clients, call Shutdown instead.

Connected Event (TFTPServer Control)

This event fires immediately after a connection completes (or fails).

Syntax

Sub tftpservercontrol_Connected(ConnectionId As Integer, StatusCode As Integer, Description As String)

Remarks

The ConnectionId is the Id of the connected client that caused the event to fire.

Upon a successful connection, the SatusCode is 0, and the Description is "OK." If the connection is not successful, the StatusCode will contain the error code. The Description will contain a textual description of the error. For a list of valid error codes and their descriptions, please refer to the Error Codes section.

ConnectionRequest Event (TFTPServer Control)

This event fires anytime a connected client attempts a connection to the server.

Syntax

Sub tftpservercontrol_ConnectionRequest(RemoteHost As String, RemotePort As Integer, Filename As String, TransferMode As String, Operation As Integer, Accept As Boolean)

Remarks

The RemoteHost parameter specifies the IP address (IP number in dotted internet format) of the client attempting to connect.

The RemotePort is the port of the client attempting a connection.

The Filename parameter is the path of the file to upload or download.

The TransferMode parameter specifies which transfer mode to use.

The Operation indicates whether the requested operation is read or write.

The Accept parameter indicates whether to accept or deny the connection. All connections are accepted by default. If you want to refuse a connection, set the Accept parameter to false.

Disconnected Event (TFTPServer Control)

This event fires after a transfer is completed.

Syntax

Sub tftpservercontrol_Disconnected(ConnectionId As Integer, StatusCode As Integer, Description As String)

Remarks

ConnectionID will be the ConnectionID of the client that has disconnected.

Upon successful transfer and disconnection, the StatusCode will be 0 and the Description will be "OK." If a transfer is unsuccessful or a client disconnects due to an error, the StatusCode will contain the error code. The Description will be a textual description of the error.

EndTransfer Event (TFTPServer Control)

This event fires once a transfer is completed.

Syntax

Sub tftpservercontrol_EndTransfer(ConnectionId As Integer, Direction As Integer)

Remarks

The ConnectionId will be the the ConnectionId of the connected client.

The Direction parameter shows whether the client (0) or the server (1) is sending the data.

Error Event (TFTPServer Control)

Fired when information is available about errors during data delivery.

Syntax

Sub tftpservercontrol_Error(ErrorCode As Integer, Description As String)

Remarks

The Error event is fired in case of exceptional conditions during message processing. Normally the control fails with an error.

The ErrorCode parameter contains an error code, and the Description parameter contains a textual description of the error. For a list of valid error codes and their descriptions, please refer to the Error Codes section.

Log Event (TFTPServer Control)

This event fires once for each log message.

Syntax

Sub tftpservercontrol_Log(ConnectionId As Integer, LogLevel As Integer, Message As String, LogType As String)

Remarks

This event fires once for each log message generated by the control. The verbosity is controlled by the LogLevel setting.

LogLevel indicates the level of message. Possible values are as follows:


0 (None)	No events are logged.
1 (Info - default)	Informational events are logged.
2 (Verbose)	Detailed data are logged.
3 (Debug)	Debug data are logged.

The value 1 (Info) logs basic information, including users logging in and out, files transferred, and directories listed.

The value 2 (Verbose) includes logs from the PITrail event as well as basic information about data transfer channels.

The value 3 (Debug) logs additional debug information, such as extended socket connection and data transfer information.

Message is the log entry.

LogType identifies the type of log entry. Possible values are as follows:

"Info"
"Error"
"Verbose"
"Debug"
"PITrail"

StartTransfer Event (TFTPServer Control)

This event fires immediately after a client initiates a file transfer.

Syntax

Sub tftpservercontrol_StartTransfer(ConnectionId As Integer, Direction As Integer)

Remarks

ConnectionId is the ConnectionId of the connected client. Direction represents the direction in which the transfer is going.

Transfer Event (TFTPServer Control)

This event fires repeatedly while data is being transferred. A transfer is marked as complete once a packet that is less than 512 bytes is received.

Syntax

Sub tftpservercontrol_Transfer(ConnectionId As Integer, Direction As Integer, BytesTransferred As Long64, PercentDone As Integer, Text As String)

Remarks

The ConnectionId parameter is the ConnectionId of the client who initiated the transfer.

BytesTransferred specifies the number of bytes transferred.

The Text parameter contains the data being transferred.

The Direction parameter shows whether the client (0) or the server (1) is sending the data.

The PercentDone parameter shows the progress of the transfer in the corresponding direction. If PercentDone can not be calculated the value will be -1.

Note: Events are not re-entrant. Performing time-consuming operations within this event will prevent it from firing again in a timely manner and may affect overall performance.

Config Settings (TFTPServer Control)

The control accepts one or more of the following configuration settings. Configuration settings are similar in functionality to properties, but they are rarely used. In order to avoid "polluting" the property namespace of the control, access to these internal properties is provided through the Config method.

TFTPServer Config Settings

DefaultRollOverNumber: Whether to enable block roll over.

This configuration determines what the block counter will roll-over to once the block counter has reached its maximum. Acceptable values are 0 and 1.

UDP Config Settings

CaptureIPPacketInfo: Used to capture the packet information.

If this is set to true, the component will capture the IP packet information.

The default value for this setting is False.

Note: This setting is only available in Windows.

DelayHostResolution: Whether the hostname is resolved when RemoteHost is set.

This setting specifies whether a hostname is resolved immediately when RemoteHost is set. If the control will resolve the hostname and the IP address will be present in the RemoteHost property. If , the hostname is not resolved until needed by the component when a method to connect or send data is called. If desired, ResolveRemoteHost may called to manually resolve the value in RemoteHost at any time.

The default value is .

DestinationAddress: Used to get the destination address from the packet information.

If CaptureIPPacketInfo is set to true, then this will be populated with the packet's destination address when a packet is received. This information will be accessible in the DataIn event.

Note: This setting is only available in Windows.

DontFragment: Used to set the Don't Fragment flag of outgoing packets.

When set to True, packets sent by the control will have the Don't Fragment flag set. The default value is False.

LocalHost: The name of the local host through which connections are initiated or accepted.

The LocalHost setting contains the name of the local host as obtained by the gethostname() system call, or if the user has assigned an IP address, the value of that address.

If the control is connected, the LocalHost setting shows the IP address of the interface through which the connection is made in internet dotted format (aaa.bbb.ccc.ddd). In most cases, this is the address of the local host, except for multi-homed hosts (machines with more than one IP interface).

LocalPort: The port in the local host where the control binds.

This must be set before a connection is attempted. It instructs the control to bind to a specific port (or communication endpoint) in the local machine.

Setting this to 0 (default) enables the system to choose a port at random. The chosen port will be shown by LocalPort after the connection is established.

LocalPort cannot be changed once a connection is made. Any attempt to set this when a connection is active will generate an error.

This; setting is useful when trying to connect to services that require a trusted port in the client side. An example is the remote shell (rsh) service in UNIX systems.

MaxPacketSize: The maximum length of the packets that can be received.

This setting specifies the maximum size of the datagrams that the control will accept without truncation.

QOSDSCPValue: Used to specify an arbitrary QOS/DSCP setting (optional).

UseConnection must be True to use this setting. This option allows you to specify an arbitrary DSCP value between 0 and 63. The default is 0. When set to the default value the component will not set a DSCP value.

Note: This setting uses the qWAVE API is only available on Windows 7, Windows Server 2008 R2, and later.

QOSTrafficType: Used to specify QOS/DSCP settings (optional).

UseConnection must be True to use this setting. You may specify either the text or integer values: BestEffort (0), Background (1), ExcellentEffort (2), AudioVideo (3), Voice (4), and Control (5).

Note: This setting uses the qWAVE API which is only available on Windows Vista and Windows Server 2008 or above.

Note: QOSTrafficType must be set before setting Active to true.

ShareLocalPort: If set to True, allows more than one instance of the control to be active on the same local port.

This option must be set before the control is activated through the Active property or it will have no effect.

The default value for this setting is False.

UseConnection: Determines whether to use a connected socket.

UseConnection specifies whether the control should use a connected socket or not. The connection is defined as an association in between the local address/port and the remote address/port. As such, this is not a connection in the traditional TCP sense. What it means is only that the control will send and receive data only to and from the specified destination.

The default value for this setting is False.

UseIPv6: Whether or not to use IPv6.

By default, the component expects an IPv4 address for local and remote host properties, and will create an IPv4 socket. To use IPv6 instead, set this to True.

Socket Config Settings

AbsoluteTimeout: Determines whether timeouts are inactivity timeouts or absolute timeouts.

If AbsoluteTimeout is set to True, any method which does not complete within Timeout seconds will be aborted. By default, AbsoluteTimeout is False, and the timeout is an inactivity timeout.

Note: This option is not valid for UDP ports.

FirewallData: Used to send extra data to the firewall.

When the firewall is a tunneling proxy, use this property to send custom (additional) headers to the firewall (e.g. headers for custom authentication schemes).

InBufferSize: The size in bytes of the incoming queue of the socket.

This is the size of an internal queue in the TCP/IP stack. You can increase or decrease its size depending on the amount of data that you will be receiving. Increasing the value of the InBufferSize setting can provide significant improvements in performance in some cases.

Some TCP/IP implementations do not support variable buffer sizes. If that is the case, when the control is activated the InBufferSize reverts to its defined size. The same happens if you attempt to make it too large or too small.

OutBufferSize: The size in bytes of the outgoing queue of the socket.

This is the size of an internal queue in the TCP/IP stack. You can increase or decrease its size depending on the amount of data that you will be sending. Increasing the value of the OutBufferSize setting can provide significant improvements in performance in some cases.

Some TCP/IP implementations do not support variable buffer sizes. If that is the case, when the control is activated the OutBufferSize reverts to its defined size. The same happens if you attempt to make it too large or too small.

Base Config Settings

CodePage: The system code page used for Unicode to Multibyte translations.

The default code page is Unicode UTF-8 (65001).

The following is a list of valid code page identifiers:


Identifier	Name
037	IBM EBCDIC - U.S./Canada
437	OEM - United States
500	IBM EBCDIC - International
708	Arabic - ASMO 708
709	Arabic - ASMO 449+, BCON V4
710	Arabic - Transparent Arabic
720	Arabic - Transparent ASMO
737	OEM - Greek (formerly 437G)
775	OEM - Baltic
850	OEM - Multilingual Latin I
852	OEM - Latin II
855	OEM - Cyrillic (primarily Russian)
857	OEM - Turkish
858	OEM - Multilingual Latin I + Euro symbol
860	OEM - Portuguese
861	OEM - Icelandic
862	OEM - Hebrew
863	OEM - Canadian-French
864	OEM - Arabic
865	OEM - Nordic
866	OEM - Russian
869	OEM - Modern Greek
870	IBM EBCDIC - Multilingual/ROECE (Latin-2)
874	ANSI/OEM - Thai (same as 28605, ISO 8859-15)
875	IBM EBCDIC - Modern Greek
932	ANSI/OEM - Japanese, Shift-JIS
936	ANSI/OEM - Simplified Chinese (PRC, Singapore)
949	ANSI/OEM - Korean (Unified Hangul Code)
950	ANSI/OEM - Traditional Chinese (Taiwan; Hong Kong SAR, PRC)
1026	IBM EBCDIC - Turkish (Latin-5)
1047	IBM EBCDIC - Latin 1/Open System
1140	IBM EBCDIC - U.S./Canada (037 + Euro symbol)
1141	IBM EBCDIC - Germany (20273 + Euro symbol)
1142	IBM EBCDIC - Denmark/Norway (20277 + Euro symbol)
1143	IBM EBCDIC - Finland/Sweden (20278 + Euro symbol)
1144	IBM EBCDIC - Italy (20280 + Euro symbol)
1145	IBM EBCDIC - Latin America/Spain (20284 + Euro symbol)
1146	IBM EBCDIC - United Kingdom (20285 + Euro symbol)
1147	IBM EBCDIC - France (20297 + Euro symbol)
1148	IBM EBCDIC - International (500 + Euro symbol)
1149	IBM EBCDIC - Icelandic (20871 + Euro symbol)
1200	Unicode UCS-2 Little-Endian (BMP of ISO 10646)
1201	Unicode UCS-2 Big-Endian
1250	ANSI - Central European
1251	ANSI - Cyrillic
1252	ANSI - Latin I
1253	ANSI - Greek
1254	ANSI - Turkish
1255	ANSI - Hebrew
1256	ANSI - Arabic
1257	ANSI - Baltic
1258	ANSI/OEM - Vietnamese
1361	Korean (Johab)
10000	MAC - Roman
10001	MAC - Japanese
10002	MAC - Traditional Chinese (Big5)
10003	MAC - Korean
10004	MAC - Arabic
10005	MAC - Hebrew
10006	MAC - Greek I
10007	MAC - Cyrillic
10008	MAC - Simplified Chinese (GB 2312)
10010	MAC - Romania
10017	MAC - Ukraine
10021	MAC - Thai
10029	MAC - Latin II
10079	MAC - Icelandic
10081	MAC - Turkish
10082	MAC - Croatia
12000	Unicode UCS-4 Little-Endian
12001	Unicode UCS-4 Big-Endian
20000	CNS - Taiwan
20001	TCA - Taiwan
20002	Eten - Taiwan
20003	IBM5550 - Taiwan
20004	TeleText - Taiwan
20005	Wang - Taiwan
20105	IA5 IRV International Alphabet No. 5 (7-bit)
20106	IA5 German (7-bit)
20107	IA5 Swedish (7-bit)
20108	IA5 Norwegian (7-bit)
20127	US-ASCII (7-bit)
20261	T.61
20269	ISO 6937 Non-Spacing Accent
20273	IBM EBCDIC - Germany
20277	IBM EBCDIC - Denmark/Norway
20278	IBM EBCDIC - Finland/Sweden
20280	IBM EBCDIC - Italy
20284	IBM EBCDIC - Latin America/Spain
20285	IBM EBCDIC - United Kingdom
20290	IBM EBCDIC - Japanese Katakana Extended
20297	IBM EBCDIC - France
20420	IBM EBCDIC - Arabic
20423	IBM EBCDIC - Greek
20424	IBM EBCDIC - Hebrew
20833	IBM EBCDIC - Korean Extended
20838	IBM EBCDIC - Thai
20866	Russian - KOI8-R
20871	IBM EBCDIC - Icelandic
20880	IBM EBCDIC - Cyrillic (Russian)
20905	IBM EBCDIC - Turkish
20924	IBM EBCDIC - Latin-1/Open System (1047 + Euro symbol)
20932	JIS X 0208-1990 & 0121-1990
20936	Simplified Chinese (GB2312)
21025	IBM EBCDIC - Cyrillic (Serbian, Bulgarian)
21027	Extended Alpha Lowercase
21866	Ukrainian (KOI8-U)
28591	ISO 8859-1 Latin I
28592	ISO 8859-2 Central Europe
28593	ISO 8859-3 Latin 3
28594	ISO 8859-4 Baltic
28595	ISO 8859-5 Cyrillic
28596	ISO 8859-6 Arabic
28597	ISO 8859-7 Greek
28598	ISO 8859-8 Hebrew
28599	ISO 8859-9 Latin 5
28605	ISO 8859-15 Latin 9
29001	Europa 3
38598	ISO 8859-8 Hebrew
50220	ISO 2022 Japanese with no halfwidth Katakana
50221	ISO 2022 Japanese with halfwidth Katakana
50222	ISO 2022 Japanese JIS X 0201-1989
50225	ISO 2022 Korean
50227	ISO 2022 Simplified Chinese
50229	ISO 2022 Traditional Chinese
50930	Japanese (Katakana) Extended
50931	US/Canada and Japanese
50933	Korean Extended and Korean
50935	Simplified Chinese Extended and Simplified Chinese
50936	Simplified Chinese
50937	US/Canada and Traditional Chinese
50939	Japanese (Latin) Extended and Japanese
51932	EUC - Japanese
51936	EUC - Simplified Chinese
51949	EUC - Korean
51950	EUC - Traditional Chinese
52936	HZ-GB2312 Simplified Chinese
54936	Windows XP: GB18030 Simplified Chinese (4 Byte)
57002	ISCII Devanagari
57003	ISCII Bengali
57004	ISCII Tamil
57005	ISCII Telugu
57006	ISCII Assamese
57007	ISCII Oriya
57008	ISCII Kannada
57009	ISCII Malayalam
57010	ISCII Gujarati
57011	ISCII Punjabi
65000	Unicode UTF-7
65001	Unicode UTF-8

The following is a list of valid code page identifiers for Mac OS only:


Identifier	Name
1	ASCII
2	NEXTSTEP
3	JapaneseEUC
4	UTF8
5	ISOLatin1
6	Symbol
7	NonLossyASCII
8	ShiftJIS
9	ISOLatin2
10	Unicode
11	WindowsCP1251
12	WindowsCP1252
13	WindowsCP1253
14	WindowsCP1254
15	WindowsCP1250
21	ISO2022JP
30	MacOSRoman
10	UTF16String
0x90000100	UTF16BigEndian
0x94000100	UTF16LittleEndian
0x8c000100	UTF32String
0x98000100	UTF32BigEndian
0x9c000100	UTF32LittleEndian
65536	Proprietary

MaskSensitive: Whether sensitive data is masked in log messages.

In certain circumstances it may be beneficial to mask sensitive data, like passwords, in log messages. Set this to to mask sensitive data. The default is .

This setting only works on these controls: AS3Receiver, AS3Sender, Atom, Client(3DS), FTP, FTPServer, IMAP, OFTPClient, SSHClient, SCP, Server(3DS), Sexec, SFTP, SFTPServer, SSHServer, TCPClient, TCPServer.

UseInternalSecurityAPI: Whether or not to use the system security libraries or an internal implementation.

When set to , the control will use the system security libraries by default to perform cryptographic functions where applicable.

Setting this configuration setting to tells the control to use the internal implementation instead of using the system security libraries.

This setting is set to by default on all platforms.

Trappable Errors (TFTPServer Control)

TFTPServer Errors


	20123 Packet too large.
	20124 Wrong response type from server.
	20125 Server error. Description contains detailed information.
	20126 Invalid server response.
	20127 A valid LocalFile must be provided for PUT operations.
	20128 Can't open local file.
	20129 Can't write to local file.
	20130 Can't read local file.
	20131 Busy performing the current transfer.
	20302 Timeout while waiting for server.
	20306 Server error.
	20307 Wrong or invalid response type received from server.
	20308 Invalid response from server.

The control may also return one of the following error codes, which are inherited from other controls.

UDP Errors


	20105 UDP is already Active.
	20107 You cannot change the LocalPort while the control is Active.
	20108 You cannot change the LocalHost at this time. A connection is in progress.
	20110 The control must be Active for this operation.
	20113 Cannot change MaxPacketSize while the control is Active.
	20114 Cannot change ShareLocalPort option while the control is Active.
	20115 Cannot change RemoteHost when UseConnection is set and the control Active.
	20116 Cannot change RemotePort when UseConnection is set and the control is Active.
	20117 RemotePort can't be zero when UseConnection is set. Please specify a valid service port number.
	20118 Cannot change UseConnection while the control is Active.
	20119 Message can't be longer than MaxPacketSize.
	20120 Message too short.
	20435 Unable to convert string to selected CodePage

SSL Errors


	20271 Cannot load specified security library.
	20272 Cannot open certificate store.
	20273 Cannot find specified certificate.
	20274 Cannot acquire security credentials.
	20275 Cannot find certificate chain.
	20276 Cannot verify certificate chain.
	20277 Error during handshake.
	20281 Error verifying certificate.
	20282 Could not find client certificate.
	20283 Could not find server certificate.
	20284 Error encrypting data.
	20285 Error decrypting data.

TCP/IP Errors


	25005 [10004] Interrupted system call.
	25010 [10009] Bad file number.
	25014 [10013] Access denied.
	25015 [10014] Bad address.
	25023 [10022] Invalid argument.
	25025 [10024] Too many open files.
	25036 [10035] Operation would block.
	25037 [10036] Operation now in progress.
	25038 [10037] Operation already in progress.
	25039 [10038] Socket operation on non-socket.
	25040 [10039] Destination address required.
	25041 [10040] Message too long.
	25042 [10041] Protocol wrong type for socket.
	25043 [10042] Bad protocol option.
	25044 [10043] Protocol not supported.
	25045 [10044] Socket type not supported.
	25046 [10045] Operation not supported on socket.
	25047 [10046] Protocol family not supported.
	25048 [10047] Address family not supported by protocol family.
	25049 [10048] Address already in use.
	25050 [10049] Can't assign requested address.
	25051 [10050] Network is down.
	25052 [10051] Network is unreachable.
	25053 [10052] Net dropped connection or reset.
	25054 [10053] Software caused connection abort.
	25055 [10054] Connection reset by peer.
	25056 [10055] No buffer space available.
	25057 [10056] Socket is already connected.
	25058 [10057] Socket is not connected.
	25059 [10058] Can't send after socket shutdown.
	25060 [10059] Too many references, can't splice.
	25061 [10060] Connection timed out.
	25062 [10061] Connection refused.
	25063 [10062] Too many levels of symbolic links.
	25064 [10063] File name too long.
	25065 [10064] Host is down.
	25066 [10065] No route to host.
	25067 [10066] Directory not empty
	25068 [10067] Too many processes.
	25069 [10068] Too many users.
	25070 [10069] Disc Quota Exceeded.
	25071 [10070] Stale NFS file handle.
	25072 [10071] Too many levels of remote in path.
	25092 [10091] Network subsystem is unavailable.
	25093 [10092] WINSOCK DLL Version out of range.
	25094 [10093] Winsock not loaded yet.
	26002 [11001] Host not found.
	26003 [11002] Non-authoritative 'Host not found' (try again or check DNS setup).
	26004 [11003] Non-recoverable errors: FORMERR, REFUSED, NOTIMP.
	26005 [11004] Valid name, no data record (check DNS setup).