Delphi DLL

Set FTP Command and Directory-Listing Charsets

Demonstrates the CommandCharset and DirListingCharset properties, which control how non-ASCII text is encoded in commands (including remote paths and filenames) and how directory-listing responses are decoded.

Background: FTP predates Unicode, so servers vary in how they encode filenames; getting non-ASCII names right means matching the server's encoding on both sides. CommandCharset (default ANSI) governs outgoing paths and filenames, while DirListingCharset governs decoding of LIST/NLST/MLSD replies. Modern servers typically use UTF-8 — often negotiated automatically via OPTS UTF8 ON — but setting these explicitly resolves mojibake with servers that do not advertise it.

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Delphi DLL

var
success: Boolean;
ftp: HCkFtp2;
listing: PWideChar;

begin
success := False;

ftp := CkFtp2_Create();

CkFtp2_putHostname(ftp,'ftp.example.com');
CkFtp2_putUsername(ftp,'myFtpLogin');

//  CommandCharset is the encoding used for commands containing non-ASCII text, including remote
//  paths and filenames.  The default is ANSI; set utf-8 when the server uses UTF-8 filenames.
CkFtp2_putCommandCharset(ftp,'utf-8');

//  DirListingCharset is used only to decode directory-listing responses (LIST, NLST, MLSD).  It
//  does not affect commands or paths.
CkFtp2_putDirListingCharset(ftp,'utf-8');

//  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.
CkFtp2_putPassword(ftp,'myPassword');

success := CkFtp2_Connect(ftp);
if (success = False) then
  begin
    Memo1.Lines.Add(CkFtp2__lastErrorText(ftp));
    Exit;
  end;

//  Non-ASCII remote paths and listings are now encoded/decoded as UTF-8.
listing := CkFtp2__getTextDirListing(ftp,'');
if (CkFtp2_getLastMethodSuccess(ftp) = False) then
  begin
    Memo1.Lines.Add(CkFtp2__lastErrorText(ftp));
    Exit;
  end;
Memo1.Lines.Add(listing);

success := CkFtp2_Disconnect(ftp);
if (success = False) then
  begin
    Memo1.Lines.Add(CkFtp2__lastErrorText(ftp));
    Exit;
  end;

CkFtp2_Dispose(ftp);