Openat self-coding implements FTP Client

# Ifndef _ dota_h _
# DEFINE _ dota_h _
# Ifndef _ dota_h
# DEFINE _ dota_h
# Define dotaext
# Else
# Define dotaext extern
# Endif
# Include "tda_global.h"

// Ftpclient callback
Dotaext void ftpcallback (wip_event_t * eV, Enum state * CTX );
// Create an FTP Client
Dotaext u8 create_ftpclient (ASCII * ftpserver );
// Execute the server-side Protocol
Dotaext void execftpcmd (ASCII * cmd );
// Send the logon Password
Dotaext void ftppassword (INT argc, int cmdindex, const ASCII ** argv );
// Send Logon
Dotaext void ftplogin (INT argc, int cmdindex, const ASCII ** argv );
// User Logon successful
Dotaext void ftplogined (INT argc, int cmdindex, const ASCII ** argv );
// FTP logon timeout
Dotaext void ftpconnecttimeout (INT argc, int cmdindex, const ASCII ** argv );
// FTP transmission mode set successfully
Dotaext void ftpsettransfertypeok (INT argc, int cmdindex, const ASCII ** argv );
// FTP starts to download data
Dotaext void ftpstarttransferdata (INT argc, int cmdindex, const ASCII ** argv );
// FTP data download complete
Dotaext void ftptransferdatacomplete (INT argc, int cmdindex, const ASCII ** argv );
// FTP parses the PASV Port
Dotaext void ftppasvparse (INT argc, int cmdindex, const ASCII ** argv );
// Create FTP client data
Dotaext u8 create_ftpdataclient (ASCII * ftpserver, 2010ftpport );
// Ftpdataclient callback
Dotaext void ftpdatacallback (wip_event_t * eV, Enum state * CTX );
// No file exists on the remote server.
Dotaext void ftpnofileonremote (INT argc, int cmdindex, const ASCII ** argv );
// Close the FTP data channel
Dotaext void close_ftpdatachannel ();
// Close the FTP Command Channel
Dotaext void close_ftpchannel ();
// Remote File resumable upload through FTP
Dotaext void ftprestfile (INT argc, int cmdindex, const ASCII ** argv );
// Resumable upload
Dotaext void rest ();
// Send a command to FTP
Dotaext void ftpwrite (u8 * data, 2010len );
// Ftpclient callback
Dotaext void ftpcallback (wip_event_t * eV, Enum state * CTX );
// Ftpdataclient callback
Dotaext void ftpdatacallback (wip_event_t * eV, Enum state * CTX );
# Endif
// FTP channel_command
Wip_channel_t ftpchannel = (wip_channel_t) NULL;/* ftpchannel ,*/
// FTP data channel
Wip_channel_t ftpdatachannel = (wip_channel_t) NULL;/* ftpdatachannel */
// Remote Upgrade
Extern Dota;
// The length of the FTP Receiving File
U32 ftprevlen = 0;
// FTP file length
U32 ftpfilelen = 0;