Visual FoxPro

Check if an FTP Listing Entry is a Symbolic Link

Demonstrates the Chilkat Ftp2.GetIsSymbolicLink method, which returns whether a cached directory-listing entry is a symbolic link. The only argument is a zero-based index. This information is available only when the server's listing format reports it.

Background: Symbolic links matter because following one can lead outside the expected directory or into a cycle, so recursive operations often need to identify and skip them. Unlike the file/directory distinction, symlink information is not always present — only listing formats that mark links (typically Unix-style LIST output) expose it, and this returns false when the server does not.

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LOCAL lnSuccess
LOCAL loFtp
LOCAL n
LOCAL i
LOCAL lcName

lnSuccess = 0

*  Demonstrates the Ftp2.GetIsSymbolicLink method, which returns whether a cached directory-listing
*  entry is a symbolic link.  The only argument is a zero-based index.  This information is only
*  available when the server's listing format reports it.

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)
    IF (loFtp.GetIsSymbolicLink(i)) THEN
        ? "[LINK] " + lcName
    ELSE
        ? "       " + lcName
    ENDIF

NEXT

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

RELEASE loFtp