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List:       exim-users
Subject:    Re: [exim] Exim 4.93 published.
From:       Jeremy Harris via Exim-users <exim-users () exim ! org>
Date:       2019-12-11 21:55:17
Message-ID: 4992f69c-49b7-df09-dce9-facf5e82a0c1 () wizmail ! org
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On 11/12/2019 14:31, Lena--- via Exim-users wrote:
> uschar *dir = expand_string(US "$spool_directory/grey");
> size_t dir_len = strlen(dir);
> uschar *filename = US store_get(dir_len+257, FALSE);

If your intended use of the rest of the allocated store is safe, yes.

"Safe" means "no content provided by a potential attacker".
Otherwise use "TRUE" (but you'd be foolish to go on and use
that for a filename).
-- 
Cheers,
  Jeremy

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