1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
|
(* Read an ELF (Linux binary) header.
* $Id$
*)
open Printf
let () =
let filename = "/bin/ls" in
let bits = Bitstring.bitstring_of_file filename in
match%bitstring bits with
| {| 0x7f : 8; "ELF" : 24 : string; (* ELF magic number *)
_ : 12*8 : bitstring; (* ELF identifier *)
e_type : 16 : littleendian; (* object file type *)
e_machine : 16 : littleendian (* architecture *)
|} ->
printf "%s: ELF binary, type %d, arch %d\n" filename e_type e_machine
| {| _ |} ->
eprintf "%s: Not an ELF binary\n" filename
|
