Visual Basic 6.0
Visual Basic 6.0
Get a Remote File's Size as a String
See more SFTP Examples
Demonstrates the Chilkat SFtp.GetFileSizeStr method, which returns a remote file's size in bytes as a decimal string. The arguments are the remote path (or handle), whether symbolic links are followed, and whether the first argument is a handle.
Background: Returning the size as a string sidesteps integer-width limits entirely, so it is the safe choice for files of any size — multi-gigabyte archives, disk images, database dumps. It is also convenient in programming languages that lack a native 64-bit integer type. When you need to do arithmetic on the value, parse the string; when you only need to display or log it, the string is ready to use.
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Dim success As Long
success = 0
' Demonstrates the SFtp.GetFileSizeStr method, which returns a remote file's size in bytes as a
' decimal string. The 1st argument is the remote path (or handle), the 2nd selects whether
' symbolic links are followed, and the 3rd indicates whether the 1st argument is a handle.
Dim sftp As New ChilkatSFtp
' Connect, authenticate, and initialize the SFTP subsystem.
Dim port As Long
port = 22
success = sftp.Connect("sftp.example.com",port)
If (success = 0) Then
Debug.Print sftp.LastErrorText
Exit Sub
End If
' 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.
Dim password As String
password = "mySshPassword"
success = sftp.AuthenticatePw("mySshLogin",password)
If (success = 0) Then
Debug.Print sftp.LastErrorText
Exit Sub
End If
success = sftp.InitializeSftp()
If (success = 0) Then
Debug.Print sftp.LastErrorText
Exit Sub
End If
' The 2nd argument (bFollowLinks) selects whether a symbolic link is followed to its target.
' The 3rd argument (bIsHandle) is 0 here because the 1st argument is a path, not an
' open handle.
Dim bFollowLinks As Long
bFollowLinks = 1
Dim bIsHandle As Long
bIsHandle = 0
' A string return avoids the 32-bit overflow that GetFileSize32 would have for very large files.
Dim fileSize As String
fileSize = sftp.GetFileSizeStr("subdir/hugefile.dat",bFollowLinks,bIsHandle)
If (sftp.LastMethodSuccess = 0) Then
Debug.Print sftp.LastErrorText
Exit Sub
End If
Debug.Print "File size: " & fileSize & " bytes"
sftp.Disconnect