Package: ftp-ssl
Version: 0.17.23+0.2-1+b1
Severity: normal

The server can respond with so called continuation messages,
i.e., multiline response on the control channel. These are
broken in at least two cases during an SSL protected session.
Remarkably they also display different behaviour in each case.i
It is therefore not inconceivable that the server is partially
to blame here, but this needs deeper analysis than is available
at this moment.

1. Silently discarding a message contents of "rstat":

   $ ftp -v -d localhost
   ...
   ---> AUTH SSL
   234 AUTH SSL OK
   [SSL Cipher AES256-GCM-SHA384]
   ---> USER egon
   ...
   ---> SYST
   215 UNUX Type: L8 (Linux)
   Remote system type is UNIX.
   Using binary mode to transfer files.
   ftp> rstat
   211- dunder.example.com FTP server status:
   211 End of status
   ftp>

2. Correctly presenting one-lined response, but breaking down on
   continuation formed response:

   ftp> rhelp auth
   ---> HELP auth
   214 Syntax: AUTH <sp> auth_type
   ftp>
   ftp> rhelp
   ---> HELP
   214- The following commands are recognized (* =>'s unimplemented).
   ssl_getc: SSL_read failed -1 = 0
   421 Service not available, remote server has closed connection
   ftp>

It should be added that these faults are unrelated to #774184, as this
latter bug is mendable without any effects on the present complaints.

Best regards,
  Mats Erik Andersson


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