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(* Copyright 2006 *)
(*
This file is part of mldonkey.
mldonkey is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
mldonkey is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with mldonkey; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*)
open Magiclib
module type MagicInfo =
sig
val magic_works : unit -> bool
(* magic_fileinfo <file> <return mime value true/false> <libmagic result, None for exceptions> *)
val magic_fileinfo : string -> bool -> string option
end
module MagicInfo : MagicInfo = struct
let magic_cookie () =
Magiclib.create ?flags:(Some [Symlink;Preserve_atime]) []
let magic_cookie_mime () =
Magiclib.create ?flags:(Some [Mime;Symlink;Preserve_atime]) []
let magic_works () =
try
let cookie = magic_cookie_mime () in
Magiclib.close cookie;
true
with e -> false
let magic_fileinfo file mime =
try
let cookie =
if mime then magic_cookie_mime () else magic_cookie ()
in
try
let fileinfo = Magiclib.file cookie file in
Magiclib.close cookie;
Some fileinfo
with e ->
Magiclib.close cookie;
None
with e -> None
end
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