Visual FoxPro

Get an FTP Listing Entry's Size (32-bit)

Demonstrates the Chilkat Ftp2.GetSize method, which returns the size in bytes of a cached directory-listing entry as a 32-bit integer. The only argument is a zero-based index. It returns -1 when the index is invalid or the size is unavailable.

Background: The size comes from the cached listing, so reading it for every entry costs no extra round trips. A 32-bit result cannot represent files past about 2 GB, so use GetSize64 (or GetSizeStr) when large files are possible. Directories often report no meaningful size and come back as -1, which is why the -1 case is worth handling rather than printing blindly.

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LOCAL lnSuccess
LOCAL loFtp
LOCAL n
LOCAL i
LOCAL lcName
LOCAL lnFileSize

lnSuccess = 0

*  Demonstrates the Ftp2.GetSize method, which returns the size in bytes of a cached
*  directory-listing entry as a 32-bit integer.  The only argument is a zero-based index.

loFtp = CreateObject('Chilkat.Ftp2')

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

lnSuccess = loFtp.Connect()
IF (lnSuccess = 0) THEN
    ? loFtp.LastErrorText
    RELEASE loFtp
    CANCEL
ENDIF

lnSuccess = loFtp.ChangeRemoteDir("public_html")
IF (lnSuccess = 0) THEN
    ? loFtp.LastErrorText
    RELEASE loFtp
    CANCEL
ENDIF

*  GetDirCount retrieves the directory listing on the first call and returns the number of
*  entries.  A negative return indicates failure.
n = loFtp.GetDirCount()
IF (n < 0) THEN
    ? loFtp.LastErrorText
    RELEASE loFtp
    CANCEL
ENDIF

FOR i = 0 TO n - 1
    lcName = loFtp.GetFilename(i)

    *  GetSize returns -1 when the index is invalid or the size is unavailable (for example for a
    *  directory).  Use GetSize64 for files that may exceed 2 GB.
    lnFileSize = loFtp.GetSize(i)
    ? lcName + "  " + STR(lnFileSize) + " bytes"
NEXT

lnSuccess = loFtp.Disconnect()
IF (lnSuccess = 0) THEN
    ? loFtp.LastErrorText
    RELEASE loFtp
    CANCEL
ENDIF

RELEASE loFtp