VB.NET

Get an FTP Listing Entry's Permissions

Demonstrates the Chilkat Ftp2.GetPermissions method, which returns the permissions or status string of a cached directory-listing entry. The only argument is a zero-based index. The value is empty when the server provides no such metadata.

Background: FTP has no single standard permissions format, so what this returns depends on the server — commonly a Unix-style mode string like drwxr-xr-x, but potentially something else. Because the format varies, pair it with GetPermType to learn how to interpret the string before parsing it, rather than assuming a fixed layout.

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Dim success As Boolean = False

'  Demonstrates the Ftp2.GetPermissions method, which returns the permissions or status string of
'  a cached directory-listing entry.  The only argument is a zero-based index.

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
    Debug.WriteLine(ftp.LastErrorText)
    Exit Sub
End If


success = ftp.ChangeRemoteDir("public_html")
If (success = False) Then
    Debug.WriteLine(ftp.LastErrorText)
    Exit Sub
End If


'  GetDirCount retrieves the directory listing on the first call and returns the number of
'  entries.  A negative return indicates failure.
Dim n As Integer = ftp.GetDirCount()
If (n < 0) Then
    Debug.WriteLine(ftp.LastErrorText)
    Exit Sub
End If


Dim i As Integer
For i = 0 To n - 1
    Dim name As String = ftp.GetFilename(i)

    '  The permissions string is empty when the server provides no such metadata.  Use
    '  GetPermType to learn how to interpret the string's format.
    Dim perms As String = ftp.GetPermissions(i)
    Debug.WriteLine(perms & "  " & name)
Next

success = ftp.Disconnect()
If (success = False) Then
    Debug.WriteLine(ftp.LastErrorText)
    Exit Sub
End If