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|
(* Js_of_ocaml tests
* http://www.ocsigen.org/js_of_ocaml/
* Copyright (C) 2022 Hugo Heuzard
*
* This program 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.
*
* This program 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*)
let () =
let files = ref [] in
let offset = ref None in
let len = ref None in
Arg.parse
[ "-offset", Int (fun i -> offset := Some i), "<OFFSET>"
; "-length", Int (fun i -> len := Some i), "<LENGTH>"
]
(fun f -> files := f :: !files)
"";
let files =
match List.rev !files with
| [] -> [ "-" ]
| l -> l
in
List.iter
(fun file ->
try
let c =
match file with
| "-" -> stdin
| fname -> open_in_bin fname
in
(match !offset, file with
| None, _ -> ()
| Some o, "-" ->
let buf = Bytes.create (1024 * 1024) in
let rec skip n =
let read = input c buf 0 (min (Bytes.length buf) n) in
if read = 0
then raise End_of_file
else
let n = n - read in
if n = 0 then () else skip n
in
skip o
| Some o, _ -> seek_in c o);
let size =
match !len with
| None -> -1
| Some l -> l
in
let digest = Digest.channel c size in
Printf.printf "%s\t%s\n" (Digest.to_hex digest) file
with e -> Printf.printf "Error: %s: %s\n" file (Printexc.to_string e))
files
|
