Xojo Plugin

Get a Remote FTP File's Size by Name

Demonstrates the Chilkat Ftp2.GetSizeByName method, which returns the size in bytes of a named file in the current remote directory as a 32-bit integer. The only argument is the filename — a name, not a path. It returns -1 when the file is not found or the size cannot be obtained.

Background: This is the direct way to get one file's size when you already know its name, typically via a SIZE command — no full directory listing required. Because the result is 32-bit, it cannot represent files past about 2 GB; use GetSizeStrByName for large files. The argument must be a bare filename in the current directory, so ChangeRemoteDir to the right place first.

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Dim success As Boolean
success = False

//  Demonstrates the Ftp2.GetSizeByName method, which returns the size in bytes of a named file in
//  the current remote directory as a 32-bit integer.  The only argument is the filename (a name,
//  not a path).

Dim ftp As New Chilkat.Ftp2

ftp.Hostname = "ftp.example.com"
ftp.Username = "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.
ftp.Password = "myPassword"

success = ftp.Connect()
If (success = False) Then
    System.DebugLog(ftp.LastErrorText)
    Return
End If

success = ftp.ChangeRemoteDir("public_html")
If (success = False) Then
    System.DebugLog(ftp.LastErrorText)
    Return
End If

//  Returns -1 when the file is not found or the size cannot be obtained.  For files that may
//  exceed 2 GB, use GetSizeStrByName (returns a decimal string).
Dim fileSize As Int32
fileSize = ftp.GetSizeByName("report.pdf")
If (fileSize < 0) Then
    System.DebugLog("File not found, or size unavailable.")
    Return
End If

System.DebugLog("report.pdf is " + Str(fileSize) + " bytes")

success = ftp.Disconnect()
If (success = False) Then
    System.DebugLog(ftp.LastErrorText)
    Return
End If