(Tcl) SCP Upload to a Specific Remote Directory

Demonstrates how to upload a file using the SCP protocol (Secure Copy Protocol over SSH). The file is uploaded to a specific remote directory. It can be either a path relative to the HOME directory of the SSH user account, or an absolute path on the remote filesystem. Obviously, in both cases the SSH user account must have permission to create or overwrite a file in the specified directory.

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load ./chilkat.dll

#  Important: It is helpful to send the contents of the
#  LastErrorText property when requesting support.

set ssh [new_CkSsh]

#  Any string automatically begins a fully-functional 30-day trial.
set success [CkSsh_UnlockComponent $ssh "30-day trial"]
if {[expr $success != 1]} then {
    puts [CkSsh_lastErrorText $ssh]
    delete_CkSsh $ssh
    exit
}

#  Connect to an SSH server:

#  Hostname may be an IP address or hostname:
set hostname "www.some-ssh-server.com"
set port 22

set success [CkSsh_Connect $ssh $hostname $port]
if {[expr $success != 1]} then {
    puts [CkSsh_lastErrorText $ssh]
    delete_CkSsh $ssh
    exit
}

#  Wait a max of 5 seconds when reading responses..
CkSsh_put_IdleTimeoutMs $ssh 5000

#  Authenticate using login/password:
set success [CkSsh_AuthenticatePw $ssh "myLogin" "myPassword"]
if {[expr $success != 1]} then {
    puts [CkSsh_lastErrorText $ssh]
    delete_CkSsh $ssh
    exit
}

#  Once the SSH object is connected and authenticated, we use it
#  as the underlying transport in our SCP object.
set scp [new_CkScp]

#  There is no UnlockComponent method for the SCP object because it uses the SSH object
#  (which must've been unlocked to establish the connection).
set success [CkScp_UseSsh $scp $ssh]
if {[expr $success != 1]} then {
    puts [CkScp_lastErrorText $scp]
    delete_CkSsh $ssh
    delete_CkScp $scp
    exit
}

#  This uploads a file to the "uploads/text" directory relative to the HOME
#  directory of the SSH user account.  For example, if the HOME directory is /home/chilkat,
#  then this uploads to /home/chilkat/uploads/text/test.txt
#  Note: The remote target directory must already exist on the SSH server.
set remotePath "uploads/text/test.txt"
set localPath "/home/bob/test.txt"
set success [CkScp_UploadFile $scp $localPath $remotePath]
if {[expr $success != 1]} then {
    puts [CkScp_lastErrorText $scp]
    delete_CkSsh $ssh
    delete_CkScp $scp
    exit
}

#  This upload fully specifies the absolute remote path.
set remotePath "/home/chilkat/junk/abc/hamlet.xml"
set localPath "/home/bob/hamlet.xml"
set success [CkScp_UploadFile $scp $localPath $remotePath]
if {[expr $success != 1]} then {
    puts [CkScp_lastErrorText $scp]
    delete_CkSsh $ssh
    delete_CkScp $scp
    exit
}

puts "SCP upload file success."

#  Disconnect
CkSsh_Disconnect $ssh

delete_CkSsh $ssh
delete_CkScp $scp