(Tcl) SFTP Download to Local Filesystem

Demonstrates how to download a file from an SSH server to the local filesystem. There are no limitations on file size, and the file is streamed directly to the local filesystem.

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load ./chilkat.dll

# This example assumes the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.

set sftp [new_CkSFtp]

# Set some timeouts, in milliseconds:
CkSFtp_put_ConnectTimeoutMs $sftp 5000
CkSFtp_put_IdleTimeoutMs $sftp 10000

# Connect to the SSH server.  
# The standard SSH port = 22
# The hostname may be a hostname or IP address.
set hostname "sftp.example.com"
set port 22
set success [CkSFtp_Connect $sftp $hostname $port]
if {$success != 1} then {
    puts [CkSFtp_lastErrorText $sftp]
    delete_CkSFtp $sftp
    exit
}

# Authenticate with the SSH server.  Chilkat SFTP supports
# both password-based authenication as well as public-key
# authentication.  This example uses password authenication.
set success [CkSFtp_AuthenticatePw $sftp "myLogin" "myPassword"]
if {$success != 1} then {
    puts [CkSFtp_lastErrorText $sftp]
    delete_CkSFtp $sftp
    exit
}

# After authenticating, the SFTP subsystem must be initialized:
set success [CkSFtp_InitializeSftp $sftp]
if {$success != 1} then {
    puts [CkSFtp_lastErrorText $sftp]
    delete_CkSFtp $sftp
    exit
}

# Open a file on the server:
set handle [CkSFtp_openFile $sftp "hamlet.xml" "readOnly" "openExisting"]
if {[CkSFtp_get_LastMethodSuccess $sftp] != 1} then {
    puts [CkSFtp_lastErrorText $sftp]
    delete_CkSFtp $sftp
    exit
}

# Download the file:
set success [CkSFtp_DownloadFile $sftp $handle "c:/temp/hamlet.xml"]
if {$success != 1} then {
    puts [CkSFtp_lastErrorText $sftp]
    delete_CkSFtp $sftp
    exit
}

# Close the file.
set success [CkSFtp_CloseHandle $sftp $handle]
if {$success != 1} then {
    puts [CkSFtp_lastErrorText $sftp]
    delete_CkSFtp $sftp
    exit
}

puts "Success."

delete_CkSFtp $sftp