Chilkat Examples

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Tcl Examples

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(Tcl) SFTP Resume Upload

Demonstrates how to resume an SFTP upload to an SSH server. The ResumeUploadFileByName method checks the size of the file on the remote server and begins uploading from the appropriate position in the local file.

Chilkat Tcl Extension Downloads

Chilkat Tcl Extension Downloads

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
}

# Upload from the local file to the SSH server.
# Important -- the remote filepath is the 1st argument,
# the local filepath is the 2nd argument;
set remoteFilePath "hamlet.xml"
set localFilePath "c:/temp/hamlet.xml"

# The ResumeUploadFileByName method first gets the size
# of the partial file on the server and then begins uploading
# from the appropriate point in the local file.
# If the remote file does not exist or is 0-length, this
# method is equivalent to UploadFileByName.
# If the remote file is already equal to or larger in size
# than the local file, then nothing more is uploaded.
set success [CkSFtp_ResumeUploadFileByName $sftp $remoteFilePath $localFilePath]
if {$success != 1} then {
    puts [CkSFtp_lastErrorText $sftp]
    delete_CkSFtp $sftp
    exit
}

puts "Success."

delete_CkSFtp $sftp

 

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