Xbase++

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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LOCAL nSuccess
LOCAL oFtp
LOCAL nFileSize

nSuccess := 0

//  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).

oFtp := CreateObject("Chilkat.Ftp2")

oFtp:Hostname := "ftp.example.com"
oFtp: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.
oFtp:Password := "myPassword"

nSuccess := oFtp:Connect()
IF (nSuccess == 0)
    ? oFtp:LastErrorText
    oFtp:destroy()
    RETURN
ENDIF

nSuccess := oFtp:ChangeRemoteDir("public_html")
IF (nSuccess == 0)
    ? oFtp:LastErrorText
    oFtp:destroy()
    RETURN
ENDIF

//  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).
nFileSize := oFtp:GetSizeByName("report.pdf")
IF (nFileSize < 0)
    ? "File not found, or size unavailable."
    oFtp:destroy()
    RETURN
ENDIF

? "report.pdf is " + Str(nFileSize) + " bytes"

nSuccess := oFtp:Disconnect()
IF (nSuccess == 0)
    ? oFtp:LastErrorText
    oFtp:destroy()
    RETURN
ENDIF

oFtp:destroy()