Tcl

Connect and Log In to an FTP Server

Demonstrates the Chilkat Ftp2.Connect method, which connects to the server and authenticates in a single call. It takes no arguments and uses the Hostname, Port, Username, and Password properties.

Background: Connect is the one-call path that covers the whole handshake: it opens the TCP connection (through any configured proxy), negotiates TLS if enabled, reads the server greeting, and sends USER/PASS to log in. For most applications this is all that is needed. Use ConnectOnly plus LoginAfterConnectOnly instead when you need to do something between connecting and authenticating — such as inspecting the greeting or choosing credentials based on it.

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Tcl


load ./chilkat.dll

set success 0

#  Demonstrates the Ftp2.Connect method, which connects to the server and authenticates in one
#  call.  It takes no arguments and uses the Hostname, Port, Username, and Password properties.

set ftp [new_CkFtp2]

#  The FTP server to connect to.  Port defaults to 21 for FTP.
CkFtp2_put_Hostname $ftp "ftp.example.com"
CkFtp2_put_Port $ftp 21

#  The login credentials.
CkFtp2_put_Username $ftp "myFtpLogin"

#  Normally you would not hard-code the password in source.  You should instead obtain it
#  from an interactive prompt, environment variable, or a secrets vault.
CkFtp2_put_Password $ftp "myPassword"

#  Connect negotiates any configured proxy and TLS, receives the greeting, and logs in.
set success [CkFtp2_Connect $ftp]
if {$success == 0} then {
    puts [CkFtp2_lastErrorText $ftp]
    delete_CkFtp2 $ftp
    exit
}

puts "Connected and logged in."

set success [CkFtp2_Disconnect $ftp]
if {$success == 0} then {
    puts [CkFtp2_lastErrorText $ftp]
    delete_CkFtp2 $ftp
    exit
}


delete_CkFtp2 $ftp