Classic ASP

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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Classic ASP

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<body>
<%
success = 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.

set ftp = Server.CreateObject("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 = 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( ftp.LastErrorText) & "</pre>"
    Response.End
End If

success = ftp.ChangeRemoteDir("public_html")
If (success = 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( ftp.LastErrorText) & "</pre>"
    Response.End
End If

'  GetDirCount retrieves the directory listing on the first call and returns the number of
'  entries.  A negative return indicates failure.
n = ftp.GetDirCount()
If (n < 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( ftp.LastErrorText) & "</pre>"
    Response.End
End If

For i = 0 To n - 1
    name = ftp.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.
    fileSize = ftp.GetSize(i)
    Response.Write "<pre>" & Server.HTMLEncode( name & "  " & fileSize & " bytes") & "</pre>"
Next

success = ftp.Disconnect()
If (success = 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( ftp.LastErrorText) & "</pre>"
    Response.End
End If


%>
</body>
</html>