IPWorks 2022 C++ Edition
Version 22.0 [Build 8369]

TFTPServer Class

Properties   Methods   Events   Config Settings   Errors  

The TFTPServer Class is used to create a TFTP Server.

Syntax

TFTPServer

Remarks

The TFTPServer class 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 class will serve files from this location. When clients connect, they can request files from this location. If this property is not set then the class 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 class'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:

Property List


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

ConnCountThe number of records in the Conn arrays.
ConnConnectionIdThis property contains a unique indentifier for this connection.
ConnFileDataThis property is only available for sending data to a connected client.
ConnFilenameThis property represents the Filename of the file the client wants to upload or download.
ConnLocalFileThis is the local file on the server.
ConnRemoteHostThis property represents the IP address of the connected client.
ConnRemotePortThis property represents the port of the connected client.
ConnTransferModeTransfers are done in octet mode 0 or netascii mode 1 .
ListeningIf set to True, the class accepts incoming connections on LocalPort.
LocalDirThe local file directory for the server.
LocalHostThe name of the local host or user-assigned IP interface through which connections are initiated or accepted.
LocalPortThis is the port that the server will listen on.
MaxRetransmitsThe number of times to retry sending a failed packet before disconnecting.
RetransmitTimeoutMaximum time in seconds to wait for a reply packet from the server before retransmitting the last packet.
TimeoutA timeout for the class.

Method List


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

ConfigSets or retrieves a configuration setting.
DoEventsProcesses events from the internal message queue.
StartListeningThis method starts listening for incoming connections.
StopListeningThis method stops listening for new connections.

Event List


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

ConnectedThis event fires immediately after a connection completes (or fails).
ConnectionRequestThis event fires anytime a connected client attempts a connection to the server.
DisconnectedThis event fires after a transfer is completed.
EndTransferThis event fires once a transfer is completed.
ErrorInformation about errors during data delivery.
LogThis event fires once for each log message.
StartTransferThis event fires immediately after a client initiates a file transfer.
TransferThis 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 class with short descriptions. Click on the links for further details.

DefaultRollOverNumberWhether to enable block roll over.
CaptureIPPacketInfoUsed to capture the packet information.
DelayHostResolutionWhether the hostname is resolved when RemoteHost is set.
DestinationAddressUsed to get the destination address from the packet information.
DontFragmentUsed to set the Don't Fragment flag of outgoing packets.
LocalHostThe name of the local host through which connections are initiated or accepted.
LocalPortThe port in the local host where the class binds.
MaxPacketSizeThe maximum length of the packets that can be received.
QOSDSCPValueUsed to specify an arbitrary QOS/DSCP setting (optional).
QOSTrafficTypeUsed to specify QOS/DSCP settings (optional).
ShareLocalPortIf set to True, allows more than one instance of the class to be active on the same local port.
SourceIPAddressUsed to set the source IP address used when sending a packet.
SourceMacAddressUsed to set the source MAC address used when sending a packet.
UseConnectionDetermines whether to use a connected socket.
UseIPv6Whether or not to use IPv6.
AbsoluteTimeoutDetermines whether timeouts are inactivity timeouts or absolute timeouts.
FirewallDataUsed to send extra data to the firewall.
InBufferSizeThe size in bytes of the incoming queue of the socket.
OutBufferSizeThe size in bytes of the outgoing queue of the socket.
BuildInfoInformation about the product's build.
CodePageThe system code page used for Unicode to Multibyte translations.
LicenseInfoInformation about the current license.
ProcessIdleEventsWhether the class uses its internal event loop to process events when the main thread is idle.
SelectWaitMillisThe length of time in milliseconds the class will wait when DoEvents is called if there are no events to process.
UseInternalSecurityAPITells the class whether or not to use the system security libraries or an internal implementation.

ConnCount Property (TFTPServer Class)

The number of records in the Conn arrays.

Syntax

ANSI (Cross Platform)
int GetConnCount();

Unicode (Windows)
INT GetConnCount();
int ipworks_tftpserver_getconncount(void* lpObj);
int GetConnCount();

Default Value

0

Remarks

This property controls the size of the following arrays:

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 Class)

This property contains a unique indentifier for this connection.

Syntax

ANSI (Cross Platform)
char* GetConnConnectionId(int iConnId);

Unicode (Windows)
LPWSTR GetConnConnectionId(INT iConnId);
char* ipworks_tftpserver_getconnconnectionid(void* lpObj, int connid);
QString GetConnConnectionId(int iConnId);

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 Class)

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

Syntax

ANSI (Cross Platform)
int GetConnFileData(int iConnId, char* &lpConnFileData, int &lenConnFileData);
int SetConnFileData(int iConnId, const char* lpConnFileData, int lenConnFileData); Unicode (Windows) INT GetConnFileData(INT iConnId, LPSTR &lpConnFileData, INT &lenConnFileData);
INT SetConnFileData(INT iConnId, LPCSTR lpConnFileData, INT lenConnFileData);
int ipworks_tftpserver_getconnfiledata(void* lpObj, int connid, char** lpConnFileData, int* lenConnFileData);
int ipworks_tftpserver_setconnfiledata(void* lpObj, int connid, const char* lpConnFileData, int lenConnFileData);
QByteArray GetConnFileData(int iConnId);
int SetConnFileData(int iConnId, QByteArray qbaConnFileData);

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.

This property is not available at design time.

Data Type

Binary String

ConnFilename Property (TFTPServer Class)

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

Syntax

ANSI (Cross Platform)
char* GetConnFilename(int iConnId);

Unicode (Windows)
LPWSTR GetConnFilename(INT iConnId);
char* ipworks_tftpserver_getconnfilename(void* lpObj, int connid);
QString GetConnFilename(int iConnId);

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 Class)

This is the local file on the server.

Syntax

ANSI (Cross Platform)
char* GetConnLocalFile(int iConnId);
int SetConnLocalFile(int iConnId, const char* lpszConnLocalFile); Unicode (Windows) LPWSTR GetConnLocalFile(INT iConnId);
INT SetConnLocalFile(INT iConnId, LPCWSTR lpszConnLocalFile);
char* ipworks_tftpserver_getconnlocalfile(void* lpObj, int connid);
int ipworks_tftpserver_setconnlocalfile(void* lpObj, int connid, const char* lpszConnLocalFile);
QString GetConnLocalFile(int iConnId);
int SetConnLocalFile(int iConnId, QString qsConnLocalFile);

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 Class)

This property represents the IP address of the connected client.

Syntax

ANSI (Cross Platform)
char* GetConnRemoteHost(int iConnId);

Unicode (Windows)
LPWSTR GetConnRemoteHost(INT iConnId);
char* ipworks_tftpserver_getconnremotehost(void* lpObj, int connid);
QString GetConnRemoteHost(int iConnId);

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 Class)

This property represents the port of the connected client.

Syntax

ANSI (Cross Platform)
int GetConnRemotePort(int iConnId);

Unicode (Windows)
INT GetConnRemotePort(INT iConnId);
int ipworks_tftpserver_getconnremoteport(void* lpObj, int connid);
int GetConnRemotePort(int iConnId);

Default Value

0

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 Class)

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

Syntax

ANSI (Cross Platform)
char* GetConnTransferMode(int iConnId);

Unicode (Windows)
LPWSTR GetConnTransferMode(INT iConnId);
char* ipworks_tftpserver_getconntransfermode(void* lpObj, int connid);
QString GetConnTransferMode(int iConnId);

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 Class)

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

Syntax

ANSI (Cross Platform)
int GetListening();
int SetListening(int bListening); Unicode (Windows) BOOL GetListening();
INT SetListening(BOOL bListening);
int ipworks_tftpserver_getlistening(void* lpObj);
int ipworks_tftpserver_setlistening(void* lpObj, int bListening);
bool GetListening();
int SetListening(bool bListening);

Default Value

FALSE

Remarks

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

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

This property is not available at design time.

Data Type

Boolean

LocalDir Property (TFTPServer Class)

The local file directory for the server.

Syntax

ANSI (Cross Platform)
char* GetLocalDir();
int SetLocalDir(const char* lpszLocalDir); Unicode (Windows) LPWSTR GetLocalDir();
INT SetLocalDir(LPCWSTR lpszLocalDir);
char* ipworks_tftpserver_getlocaldir(void* lpObj);
int ipworks_tftpserver_setlocaldir(void* lpObj, const char* lpszLocalDir);
QString GetLocalDir();
int SetLocalDir(QString qsLocalDir);

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 Class)

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

Syntax

ANSI (Cross Platform)
char* GetLocalHost();
int SetLocalHost(const char* lpszLocalHost); Unicode (Windows) LPWSTR GetLocalHost();
INT SetLocalHost(LPCWSTR lpszLocalHost);
char* ipworks_tftpserver_getlocalhost(void* lpObj);
int ipworks_tftpserver_setlocalhost(void* lpObj, const char* lpszLocalHost);
QString GetLocalHost();
int SetLocalHost(QString qsLocalHost);

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 class initiate connections (or accept in the case of server classs) only through that interface.

If the class 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 Class)

This is the port that the server will listen on.

Syntax

ANSI (Cross Platform)
int GetLocalPort();
int SetLocalPort(int iLocalPort); Unicode (Windows) INT GetLocalPort();
INT SetLocalPort(INT iLocalPort);
int ipworks_tftpserver_getlocalport(void* lpObj);
int ipworks_tftpserver_setlocalport(void* lpObj, int iLocalPort);
int GetLocalPort();
int SetLocalPort(int iLocalPort);

Default Value

69

Remarks

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

Data Type

Integer

MaxRetransmits Property (TFTPServer Class)

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

Syntax

ANSI (Cross Platform)
int GetMaxRetransmits();
int SetMaxRetransmits(int iMaxRetransmits); Unicode (Windows) INT GetMaxRetransmits();
INT SetMaxRetransmits(INT iMaxRetransmits);
int ipworks_tftpserver_getmaxretransmits(void* lpObj);
int ipworks_tftpserver_setmaxretransmits(void* lpObj, int iMaxRetransmits);
int GetMaxRetransmits();
int SetMaxRetransmits(int iMaxRetransmits);

Default Value

3

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 Class)

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

Syntax

ANSI (Cross Platform)
int GetRetransmitTimeout();
int SetRetransmitTimeout(int iRetransmitTimeout); Unicode (Windows) INT GetRetransmitTimeout();
INT SetRetransmitTimeout(INT iRetransmitTimeout);
int ipworks_tftpserver_getretransmittimeout(void* lpObj);
int ipworks_tftpserver_setretransmittimeout(void* lpObj, int iRetransmitTimeout);
int GetRetransmitTimeout();
int SetRetransmitTimeout(int iRetransmitTimeout);

Default Value

5

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 Class)

A timeout for the class.

Syntax

ANSI (Cross Platform)
int GetTimeout();
int SetTimeout(int iTimeout); Unicode (Windows) INT GetTimeout();
INT SetTimeout(INT iTimeout);
int ipworks_tftpserver_gettimeout(void* lpObj);
int ipworks_tftpserver_settimeout(void* lpObj, int iTimeout);
int GetTimeout();
int SetTimeout(int iTimeout);

Default Value

60

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 class will wait for the operation to complete before returning control.

The class 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 class 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 Class)

Sets or retrieves a configuration setting.

Syntax

ANSI (Cross Platform)
char* Config(const char* lpszConfigurationString);

Unicode (Windows)
LPWSTR Config(LPCWSTR lpszConfigurationString);
char* ipworks_tftpserver_config(void* lpObj, const char* lpszConfigurationString);
QString Config(const QString& qsConfigurationString);

Remarks

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

These settings are similar in functionality to properties, but they are rarely used. In order to avoid "polluting" the property namespace of the class, 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.

Error Handling (C++)

This method returns a String value; after it returns, call the GetLastErrorCode() method to obtain its result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message.

DoEvents Method (TFTPServer Class)

Processes events from the internal message queue.

Syntax

ANSI (Cross Platform)
int DoEvents();

Unicode (Windows)
INT DoEvents();
int ipworks_tftpserver_doevents(void* lpObj);
int DoEvents();

Remarks

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

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

StartListening Method (TFTPServer Class)

This method starts listening for incoming connections.

Syntax

ANSI (Cross Platform)
int StartListening();

Unicode (Windows)
INT StartListening();
int ipworks_tftpserver_startlistening(void* lpObj);
int 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.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

StopListening Method (TFTPServer Class)

This method stops listening for new connections.

Syntax

ANSI (Cross Platform)
int StopListening();

Unicode (Windows)
INT StopListening();
int ipworks_tftpserver_stoplistening(void* lpObj);
int 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.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

Connected Event (TFTPServer Class)

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

Syntax

ANSI (Cross Platform)
virtual int FireConnected(TFTPServerConnectedEventParams *e);
typedef struct {
int ConnectionId;
int StatusCode;
const char *Description; int reserved; } TFTPServerConnectedEventParams;
Unicode (Windows) virtual INT FireConnected(TFTPServerConnectedEventParams *e);
typedef struct {
INT ConnectionId;
INT StatusCode;
LPCWSTR Description; INT reserved; } TFTPServerConnectedEventParams;
#define EID_TFTPSERVER_CONNECTED 1

virtual INT IPWORKS_CALL FireConnected(INT &iConnectionId, INT &iStatusCode, LPSTR &lpszDescription);
class TFTPServerConnectedEventParams {
public:
  int ConnectionId();

  int StatusCode();

  const QString &Description();

  int EventRetVal();
  void SetEventRetVal(int iRetVal);
};
// To handle, connect one or more slots to this signal. void Connected(TFTPServerConnectedEventParams *e);
// Or, subclass TFTPServer and override this emitter function. virtual int FireConnected(TFTPServerConnectedEventParams *e) {...}

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 Class)

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

Syntax

ANSI (Cross Platform)
virtual int FireConnectionRequest(TFTPServerConnectionRequestEventParams *e);
typedef struct {
const char *RemoteHost;
int RemotePort;
const char *Filename;
const char *TransferMode;
int Operation;
int Accept; int reserved; } TFTPServerConnectionRequestEventParams;
Unicode (Windows) virtual INT FireConnectionRequest(TFTPServerConnectionRequestEventParams *e);
typedef struct {
LPCWSTR RemoteHost;
INT RemotePort;
LPCWSTR Filename;
LPCWSTR TransferMode;
INT Operation;
BOOL Accept; INT reserved; } TFTPServerConnectionRequestEventParams;
#define EID_TFTPSERVER_CONNECTIONREQUEST 2

virtual INT IPWORKS_CALL FireConnectionRequest(LPSTR &lpszRemoteHost, INT &iRemotePort, LPSTR &lpszFilename, LPSTR &lpszTransferMode, INT &iOperation, BOOL &bAccept);
class TFTPServerConnectionRequestEventParams {
public:
  const QString &RemoteHost();

  int RemotePort();

  const QString &Filename();

  const QString &TransferMode();

  int Operation();

  bool Accept();
  void SetAccept(bool bAccept);

  int EventRetVal();
  void SetEventRetVal(int iRetVal);
};
// To handle, connect one or more slots to this signal. void ConnectionRequest(TFTPServerConnectionRequestEventParams *e);
// Or, subclass TFTPServer and override this emitter function. virtual int FireConnectionRequest(TFTPServerConnectionRequestEventParams *e) {...}

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 Class)

This event fires after a transfer is completed.

Syntax

ANSI (Cross Platform)
virtual int FireDisconnected(TFTPServerDisconnectedEventParams *e);
typedef struct {
int ConnectionId;
int StatusCode;
const char *Description; int reserved; } TFTPServerDisconnectedEventParams;
Unicode (Windows) virtual INT FireDisconnected(TFTPServerDisconnectedEventParams *e);
typedef struct {
INT ConnectionId;
INT StatusCode;
LPCWSTR Description; INT reserved; } TFTPServerDisconnectedEventParams;
#define EID_TFTPSERVER_DISCONNECTED 3

virtual INT IPWORKS_CALL FireDisconnected(INT &iConnectionId, INT &iStatusCode, LPSTR &lpszDescription);
class TFTPServerDisconnectedEventParams {
public:
  int ConnectionId();

  int StatusCode();

  const QString &Description();

  int EventRetVal();
  void SetEventRetVal(int iRetVal);
};
// To handle, connect one or more slots to this signal. void Disconnected(TFTPServerDisconnectedEventParams *e);
// Or, subclass TFTPServer and override this emitter function. virtual int FireDisconnected(TFTPServerDisconnectedEventParams *e) {...}

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 Class)

This event fires once a transfer is completed.

Syntax

ANSI (Cross Platform)
virtual int FireEndTransfer(TFTPServerEndTransferEventParams *e);
typedef struct {
int ConnectionId;
int Direction; int reserved; } TFTPServerEndTransferEventParams;
Unicode (Windows) virtual INT FireEndTransfer(TFTPServerEndTransferEventParams *e);
typedef struct {
INT ConnectionId;
INT Direction; INT reserved; } TFTPServerEndTransferEventParams;
#define EID_TFTPSERVER_ENDTRANSFER 4

virtual INT IPWORKS_CALL FireEndTransfer(INT &iConnectionId, INT &iDirection);
class TFTPServerEndTransferEventParams {
public:
  int ConnectionId();

  int Direction();

  int EventRetVal();
  void SetEventRetVal(int iRetVal);
};
// To handle, connect one or more slots to this signal. void EndTransfer(TFTPServerEndTransferEventParams *e);
// Or, subclass TFTPServer and override this emitter function. virtual int FireEndTransfer(TFTPServerEndTransferEventParams *e) {...}

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 Class)

Information about errors during data delivery.

Syntax

ANSI (Cross Platform)
virtual int FireError(TFTPServerErrorEventParams *e);
typedef struct {
int ErrorCode;
const char *Description; int reserved; } TFTPServerErrorEventParams;
Unicode (Windows) virtual INT FireError(TFTPServerErrorEventParams *e);
typedef struct {
INT ErrorCode;
LPCWSTR Description; INT reserved; } TFTPServerErrorEventParams;
#define EID_TFTPSERVER_ERROR 5

virtual INT IPWORKS_CALL FireError(INT &iErrorCode, LPSTR &lpszDescription);
class TFTPServerErrorEventParams {
public:
  int ErrorCode();

  const QString &Description();

  int EventRetVal();
  void SetEventRetVal(int iRetVal);
};
// To handle, connect one or more slots to this signal. void Error(TFTPServerErrorEventParams *e);
// Or, subclass TFTPServer and override this emitter function. virtual int FireError(TFTPServerErrorEventParams *e) {...}

Remarks

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

ErrorCode contains an error code and Description 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 Class)

This event fires once for each log message.

Syntax

ANSI (Cross Platform)
virtual int FireLog(TFTPServerLogEventParams *e);
typedef struct {
int ConnectionId;
int LogLevel;
const char *Message;
const char *LogType; int reserved; } TFTPServerLogEventParams;
Unicode (Windows) virtual INT FireLog(TFTPServerLogEventParams *e);
typedef struct {
INT ConnectionId;
INT LogLevel;
LPCWSTR Message;
LPCWSTR LogType; INT reserved; } TFTPServerLogEventParams;
#define EID_TFTPSERVER_LOG 6

virtual INT IPWORKS_CALL FireLog(INT &iConnectionId, INT &iLogLevel, LPSTR &lpszMessage, LPSTR &lpszLogType);
class TFTPServerLogEventParams {
public:
  int ConnectionId();

  int LogLevel();

  const QString &Message();

  const QString &LogType();

  int EventRetVal();
  void SetEventRetVal(int iRetVal);
};
// To handle, connect one or more slots to this signal. void Log(TFTPServerLogEventParams *e);
// Or, subclass TFTPServer and override this emitter function. virtual int FireLog(TFTPServerLogEventParams *e) {...}

Remarks

This event fires once for each log message generated by the class. 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 Class)

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

Syntax

ANSI (Cross Platform)
virtual int FireStartTransfer(TFTPServerStartTransferEventParams *e);
typedef struct {
int ConnectionId;
int Direction; int reserved; } TFTPServerStartTransferEventParams;
Unicode (Windows) virtual INT FireStartTransfer(TFTPServerStartTransferEventParams *e);
typedef struct {
INT ConnectionId;
INT Direction; INT reserved; } TFTPServerStartTransferEventParams;
#define EID_TFTPSERVER_STARTTRANSFER 7

virtual INT IPWORKS_CALL FireStartTransfer(INT &iConnectionId, INT &iDirection);
class TFTPServerStartTransferEventParams {
public:
  int ConnectionId();

  int Direction();

  int EventRetVal();
  void SetEventRetVal(int iRetVal);
};
// To handle, connect one or more slots to this signal. void StartTransfer(TFTPServerStartTransferEventParams *e);
// Or, subclass TFTPServer and override this emitter function. virtual int FireStartTransfer(TFTPServerStartTransferEventParams *e) {...}

Remarks

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

Transfer Event (TFTPServer Class)

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

ANSI (Cross Platform)
virtual int FireTransfer(TFTPServerTransferEventParams *e);
typedef struct {
int ConnectionId;
int Direction;
int64 BytesTransferred;
int PercentDone;
const char *Text; int lenText; int reserved; } TFTPServerTransferEventParams;
Unicode (Windows) virtual INT FireTransfer(TFTPServerTransferEventParams *e);
typedef struct {
INT ConnectionId;
INT Direction;
LONG64 BytesTransferred;
INT PercentDone;
LPCSTR Text; INT lenText; INT reserved; } TFTPServerTransferEventParams;
#define EID_TFTPSERVER_TRANSFER 8

virtual INT IPWORKS_CALL FireTransfer(INT &iConnectionId, INT &iDirection, LONG64 &lBytesTransferred, INT &iPercentDone, LPSTR &lpText, INT &lenText);
class TFTPServerTransferEventParams {
public:
  int ConnectionId();

  int Direction();

  qint64 BytesTransferred();

  int PercentDone();

  const QByteArray &Text();

  int EventRetVal();
  void SetEventRetVal(int iRetVal);
};
// To handle, connect one or more slots to this signal. void Transfer(TFTPServerTransferEventParams *e);
// Or, subclass TFTPServer and override this emitter function. virtual int FireTransfer(TFTPServerTransferEventParams *e) {...}

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 Class)

The class 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 class, 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 true the class will resolve the hostname and the IP address will be present in the RemoteHost property. If false, 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 false.

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 class 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.

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

If the class 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 class binds.

This must be set before a connection is attempted. It instructs the class 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 class 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 class to be active on the same local port.

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

The default value for this setting is False.

SourceIPAddress:   Used to set the source IP address used when sending a packet.

This configuration setting can be used to override the source IP address when sending a packet.

Note: This setting is only available in Windows and requires that the winpcap library be installed (or npcap with winpcap compatibility).

SourceMacAddress:   Used to set the source MAC address used when sending a packet.

This configuration setting can be used to override the source MAC address when sending a packet.

Note: This setting is only available in Windows and requires that the winpcap library be installed (or npcap with winpcap compatibility).

UseConnection:   Determines whether to use a connected socket.

UseConnection specifies whether the class 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 class 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 class 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 class 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

BuildInfo:   Information about the product's build.

When queried, this setting will return a string containing information about the product's build.

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:

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

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

IdentifierName
1ASCII
2NEXTSTEP
3JapaneseEUC
4UTF8
5ISOLatin1
6Symbol
7NonLossyASCII
8ShiftJIS
9ISOLatin2
10Unicode
11WindowsCP1251
12WindowsCP1252
13WindowsCP1253
14WindowsCP1254
15WindowsCP1250
21ISO2022JP
30MacOSRoman
10UTF16String
0x90000100UTF16BigEndian
0x94000100UTF16LittleEndian
0x8c000100UTF32String
0x98000100UTF32BigEndian
0x9c000100UTF32LittleEndian
65536Proprietary

LicenseInfo:   Information about the current license.

When queried, this setting will return a string containing information about the license this instance of a class is using. It will return the following information:

  • Product: The product the license is for.
  • Product Key: The key the license was generated from.
  • License Source: Where the license was found (e.g., RuntimeLicense, License File).
  • License Type: The type of license installed (e.g., Royalty Free, Single Server).
  • Last Valid Build: The last valid build number for which the license will work.
ProcessIdleEvents:   Whether the class uses its internal event loop to process events when the main thread is idle.

If set to False, the class will not fire internal idle events. Set this to False to use the class in a background thread on Mac OS. By default, this setting is True.

SelectWaitMillis:   The length of time in milliseconds the class will wait when DoEvents is called if there are no events to process.

If there are no events to process when DoEvents is called, the class will wait for the amount of time specified here before returning. The default value is 20.

UseInternalSecurityAPI:   Tells the class whether or not to use the system security libraries or an internal implementation.

By default the class will use the system security libraries to perform cryptographic functions where applicable. Setting this to true tells the class to use the internal implementation instead of using the system's security API.

Trappable Errors (TFTPServer Class)

Error Handling (C++)

Call the GetLastErrorCode() method to obtain the last called method's result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. Known error codes are listed below. If an error occurs, the GetLastError() method can be called to retrieve the associated error message.

TFTPServer Errors

122   Packet too large.
123   Wrong response type from server.
124   Server error. Description contains detailed information.
125   Invalid server response.
126   A valid LocalFile must be provided for PUT operations.
127   Can't open local file.
128   Can't write to local file.
129   Can't read local file.
130   Busy performing the current transfer.
301   Timeout while waiting for server.
305   Server error.
306   Wrong or invalid response type received from server.
307   Invalid response from server.

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

UDP Errors

104   UDP is already Active.
106   You cannot change the LocalPort while the class is Active.
107   You cannot change the LocalHost at this time. A connection is in progress.
109   The class must be Active for this operation.
112   Cannot change MaxPacketSize while the class is Active.
113   Cannot change ShareLocalPort option while the class is Active.
114   Cannot change RemoteHost when UseConnection is set and the class Active.
115   Cannot change RemotePort when UseConnection is set and the class is Active.
116   RemotePort can't be zero when UseConnection is set. Please specify a valid service port number.
117   Cannot change UseConnection while the class is Active.
118   Message can't be longer than MaxPacketSize.
119   Message too short.
434   Unable to convert string to selected CodePage

SSL Errors

270   Cannot load specified security library.
271   Cannot open certificate store.
272   Cannot find specified certificate.
273   Cannot acquire security credentials.
274   Cannot find certificate chain.
275   Cannot verify certificate chain.
276   Error during handshake.
280   Error verifying certificate.
281   Could not find client certificate.
282   Could not find server certificate.
283   Error encrypting data.
284   Error decrypting data.

TCP/IP Errors

10004   [10004] Interrupted system call.
10009   [10009] Bad file number.
10013   [10013] Access denied.
10014   [10014] Bad address.
10022   [10022] Invalid argument.
10024   [10024] Too many open files.
10035   [10035] Operation would block.
10036   [10036] Operation now in progress.
10037   [10037] Operation already in progress.
10038   [10038] Socket operation on non-socket.
10039   [10039] Destination address required.
10040   [10040] Message too long.
10041   [10041] Protocol wrong type for socket.
10042   [10042] Bad protocol option.
10043   [10043] Protocol not supported.
10044   [10044] Socket type not supported.
10045   [10045] Operation not supported on socket.
10046   [10046] Protocol family not supported.
10047   [10047] Address family not supported by protocol family.
10048   [10048] Address already in use.
10049   [10049] Can't assign requested address.
10050   [10050] Network is down.
10051   [10051] Network is unreachable.
10052   [10052] Net dropped connection or reset.
10053   [10053] Software caused connection abort.
10054   [10054] Connection reset by peer.
10055   [10055] No buffer space available.
10056   [10056] Socket is already connected.
10057   [10057] Socket is not connected.
10058   [10058] Can't send after socket shutdown.
10059   [10059] Too many references, can't splice.
10060   [10060] Connection timed out.
10061   [10061] Connection refused.
10062   [10062] Too many levels of symbolic links.
10063   [10063] File name too long.
10064   [10064] Host is down.
10065   [10065] No route to host.
10066   [10066] Directory not empty
10067   [10067] Too many processes.
10068   [10068] Too many users.
10069   [10069] Disc Quota Exceeded.
10070   [10070] Stale NFS file handle.
10071   [10071] Too many levels of remote in path.
10091   [10091] Network subsystem is unavailable.
10092   [10092] WINSOCK DLL Version out of range.
10093   [10093] Winsock not loaded yet.
11001   [11001] Host not found.
11002   [11002] Non-authoritative 'Host not found' (try again or check DNS setup).
11003   [11003] Non-recoverable errors: FORMERR, REFUSED, NOTIMP.
11004   [11004] Valid name, no data record (check DNS setup).

Copyright (c) 2022 /n software inc. - All rights reserved.
IPWorks 2022 C++ Edition - Version 22.0 [Build 8369]