PowerBuilder

Co:Z SFTP Binary File Download (from z/OS IBM Mainframe)

See more SFTP Examples

Demonstrates how to download a binary file, such as a .zip, from a Co:Z SFTP server on a z/OS IBM Mainframe. PowerBuilder

integer li_rc
integer li_Success
oleobject loo_Sftp
string ls_Hostname
integer li_Port
string ls_Handle
oleobject loo_DirListing
string ls_LocalFilePath
string ls_RemoteFilePath

li_Success = 0

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

loo_Sftp = create oleobject
li_rc = loo_Sftp.ConnectToNewObject("Chilkat.SFtp")
if li_rc < 0 then
    destroy loo_Sftp
    MessageBox("Error","Connecting to COM object failed")
    return
end if

// Connect to the SSH server.  
ls_Hostname = "sftp.example.com"
li_Port = 22
li_Success = loo_Sftp.Connect(ls_Hostname,li_Port)
if li_Success = 0 then
    Write-Debug loo_Sftp.LastErrorText
    destroy loo_Sftp
    return
end if

li_Success = loo_Sftp.AuthenticatePw("myLogin","myPassword")
if li_Success = 0 then
    Write-Debug loo_Sftp.LastErrorText
    destroy loo_Sftp
    return
end if

li_Success = loo_Sftp.InitializeSftp()
if li_Success = 0 then
    Write-Debug loo_Sftp.LastErrorText
    destroy loo_Sftp
    return
end if

// To download a binary file from the Co:Z SFTP server, 
// we must switch to binary mode in the following unconventional way.
// We pretend to fetch a directory listing for "/+mode=binary"
// This has the effect of putting the server in binary mode for transfers.
ls_Handle = loo_Sftp.OpenDir("/+mode=binary")
if loo_Sftp.LastMethodSuccess = 0 then
    Write-Debug loo_Sftp.LastErrorText
    destroy loo_Sftp
    return
end if

// Download the "directory listing" (but it's not actually a directory listing, and we'll just discard it.)

loo_DirListing = create oleobject
li_rc = loo_DirListing.ConnectToNewObject("Chilkat.SFtpDir")

li_Success = loo_Sftp.ReadDirListing(ls_Handle,loo_DirListing)
if li_Success = 0 then
    Write-Debug loo_Sftp.LastErrorText
    destroy loo_Sftp
    destroy loo_DirListing
    return
end if

// Close the directory handle:
li_Success = loo_Sftp.CloseHandle(ls_Handle)
if li_Success = 0 then
    Write-Debug loo_Sftp.LastErrorText
    destroy loo_Sftp
    destroy loo_DirListing
    return
end if

// Download the binary file:
ls_LocalFilePath = "c:/temp/test.zip"
ls_RemoteFilePath = "test.zip"
li_Success = loo_Sftp.DownloadFileByName(ls_RemoteFilePath,ls_LocalFilePath)
if li_Success = 0 then
    Write-Debug loo_Sftp.LastErrorText
    destroy loo_Sftp
    destroy loo_DirListing
    return
end if

Write-Debug "Success."


destroy loo_Sftp
destroy loo_DirListing