bug#50399: TRAMP can't connect to Win 2000 (smb, ftp, telnet)

[Michael Albinus <michael.albinus@gmx.de>]

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Bad Blue Bull <ibmbull@yandex.ru> writes:

Hi,

> Yes, I noticed it.  C:\scripts doesn't even exist.
> the instance of smbclient running according to ps -aux is
> /usr/bin/smbclient //win2k/C$ -U nicolas -s /dev/null --option client
> min protocol=NT1
> before I enter password.  Then I enter password and then half minute
> after:
> /usr/bin/smbclient //win2k/src -U nicolas -s /dev/null --option client
> min protocol=NT1
> I've no idea about these scripts and src 'shares'.

Hmm, maybe there are some cache data in the way? What happens, if you
start "emacs -Q ..."?

> Why am I prompted for password every time?  It's empty password saved
> many times into ~/.authinfo.

I'm already investigating this. I believe it is a bug in the auth.el
package (it shouldn't write empty passwords), but I haven't finished
analysis yet.

A workaround for Tramp might be the appended patch.

Best regards, Michael.


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diff --git a/lisp/tramp.el b/lisp/tramp.el
index 044d20a6..92bd12c2 100644
--- a/lisp/tramp.el
+++ b/lisp/tramp.el
@@ -5711,6 +5711,8 @@ Invokes `password-read' if available, `read-passwd' else."
 	       ;; Else, get the password interactively w/o cache.
 	       (read-passwd pw-prompt))

+	    (when (zerop (length auth-passwd))
+	      (setq tramp-password-save-function nil))
 	    (tramp-set-connection-property v "first-password-request" nil)))

       ;; Reenable the timers.