42 lines
1.4 KiB
OCaml
42 lines
1.4 KiB
OCaml
(***********************************************************************)
|
|
(* *)
|
|
(* Objective Caml *)
|
|
(* *)
|
|
(* Xavier Leroy, projet Cristal, INRIA Rocquencourt *)
|
|
(* *)
|
|
(* Copyright 1996 Institut National de Recherche en Informatique et *)
|
|
(* Automatique. Distributed only by permission. *)
|
|
(* *)
|
|
(***********************************************************************)
|
|
|
|
(* $Id$ *)
|
|
|
|
(* Message digest (MD5) *)
|
|
|
|
type t = string
|
|
|
|
external unsafe_string: string -> int -> int -> t = "md5_string"
|
|
external channel: in_channel -> int -> t = "md5_chan"
|
|
|
|
let string str =
|
|
unsafe_string str 0 (String.length str)
|
|
|
|
let substring str ofs len =
|
|
if ofs < 0 or ofs + len > String.length str
|
|
then invalid_arg "Digest.substring"
|
|
else unsafe_string str ofs len
|
|
|
|
let file filename =
|
|
let ic = open_in_bin filename in
|
|
let d = channel ic (in_channel_length ic) in
|
|
close_in ic;
|
|
d
|
|
|
|
let output chan digest =
|
|
output chan digest 0 16
|
|
|
|
let input chan =
|
|
let digest = String.create 16 in
|
|
really_input chan digest 0 16;
|
|
digest
|