PITrail Event

Fired when any protocol level communication occurs.


ANSI (Cross Platform)
virtual int FirePITrail(OFTPClientPITrailEventParams *e);
typedef struct {
int Direction;
const char *Data; int lenData;
int CommandId;
const char *CommandDescription; int reserved; } OFTPClientPITrailEventParams; Unicode (Windows) virtual INT FirePITrail(OFTPClientPITrailEventParams *e);
typedef struct {
INT Direction;
LPCSTR Data; INT lenData;
INT CommandId;
LPCWSTR CommandDescription; INT reserved; } OFTPClientPITrailEventParams;
- (void)onPITrail:(int)direction :(NSData*)data :(int)commandId :(NSString*)commandDescription;

virtual INT IPWORKSEDI_CALL FirePITrail(INT &iDirection, LPSTR &lpData, INT &lenData, INT &iCommandId, LPSTR &lpszCommandDescription);


This event provides information about the protocol level communication between the client and server.

The Direction parameter specifies who sent the command.

0 (Client) The command originated from the connected client.
1 (Server) The command originated from the server.

The CommandId and CommandDescription parameters specify which command was sent. The table below shows possible values.

50SFPA (Start File Positive Answer)
51SFNA (Start File Negative Answer)
52EFPA (End File Positive Answer)
53EFNA (End File Negative Answer)
65AUCH (Authentication Challenge)
67CDT (Set Credit)
68DATA (Data Exchange Buffer)
69EERP (End to End Response)
70ESID (End Session)
72SFID (Start File)
73SSRM (Start Session Ready Message)
74SECD (Security Change Direction)
78NERP (Negative End Response)
80RTR (Ready To Receive)
82CD (Change Direction)
83AURP (Authentication Response)
84EFID (End File)
88SSID (Start Session)

The Data parameter contains the raw OFTP packet.

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IPWorks EDI 2020 C++ Edition - Version 20.0 [Build 8203]