bug#19192: 25.0.50; TRAMP uses `dired-listing-switches' for ftp-connection

[Andreas Schwab]

Rasmus <rasmus@gmx.us> writes:

> diff --git a/lisp/net/ange-ftp.el b/lisp/net/ange-ftp.el
> index d7632ed..5e9bc27 100644
> --- a/lisp/net/ange-ftp.el
> +++ b/lisp/net/ange-ftp.el
> @@ -2831,16 +2831,20 @@ match subdirectories as well.")
>                     files ange-ftp-files-hashtable)))
>  
>  (defun ange-ftp-switches-ok (switches)
> -  "Return SWITCHES (a string) if suitable for our use."
> +  "Return SWITCHES (a string) if suitable for use with ls over ftp."
>    (and (stringp switches)
>         ;; We allow the A switch, which lists all files except "." and
>         ;; "..".  This is OK because we manually insert these entries
>         ;; in the hash table.
>         (string-match
>       "--\\(almost-\\)?all\\>\\|\\(\\`\\| \\)-[[:alpha:]]*[aA]" switches)
> +       ;; Allow flags starting with a single dash
>         (string-match "\\(\\`\\| \\)-[[:alpha:]]*l" switches)
> +       ;; Disallow recursive flag
>         (not (string-match
> -          "--recursive\\>\\|\\(\\`\\| \\)-[[:alpha:]]*R" switches))
> +          "\\(\\`\\| \\)-[[:alpha:]]*R" switches))
> +       ;; Disallow long flags.
> +       (not (string-match "--\\w\\{2,\\}"))

This contradicts the first string-match.

-- 
Andreas Schwab, SUSE Labs, schwab@suse.de
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