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