1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
|
(*
Title: Standard Basis Library: NetProtDB Structures and Signatures
Author: David Matthews
Copyright David Matthews 2000
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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 library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*)
(* G&R 2004 status: checked, no change. *)
signature NET_PROT_DB =
sig
type entry
val name : entry -> string
val aliases : entry -> string list
val protocol : entry -> int
val getByName : string -> entry option
val getByNumber : int -> entry option
end;
structure NetProtDB :> NET_PROT_DB =
struct
type entry = string * string list * int
val name: entry -> string = #1
val aliases : entry -> string list = #2
val protocol : entry -> int = #3
local
val doCall: int*string -> entry
= RunCall.run_call2 RuntimeCalls.POLY_SYS_network
in
fun getByName s =
SOME(doCall(3, s)) handle OS.SysErr _ => NONE
end
local
val doCall: int*int -> entry
= RunCall.run_call2 RuntimeCalls.POLY_SYS_network
in
fun getByNumber n =
SOME(doCall(4, n)) handle OS.SysErr _ => NONE
end
end;
|
