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1 | (* HCoop Domtool (http://hcoop.sourceforge.net/) |
2 | * Copyright (c) 2006-2007, Adam Chlipala |
3 | * |
4 | * This program is free software; you can redistribute it and/or |
5 | * modify it under the terms of the GNU General Public License |
6 | * as published by the Free Software Foundation; either version 2 |
7 | * of the License, or (at your option) any later version. |
8 | * |
9 | * This program is distributed in the hope that it will be useful, |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
12 | * GNU General Public License for more details. |
13 | * |
14 | * You should have received a copy of the GNU General Public License |
15 | * along with this program; if not, write to the Free Software |
16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
17 | *) |
18 | |
19 | (* Firewall rule querying *) |
20 | |
21 | structure Firewall :> FIREWALL = struct |
22 | |
23 | fun query uname = |
24 | let |
25 | val inf = TextIO.openIn "/etc/firewall/users.rules" |
26 | |
27 | fun loop rules = |
28 | case TextIO.inputLine inf of |
29 | NONE => List.rev rules |
30 | | SOME line => |
31 | if String.sub (line, 0) = #"#" then |
32 | loop rules |
33 | else case String.tokens Char.isSpace line of |
34 | uname'::rest => |
35 | if uname = uname' then |
36 | loop (String.concatWith " " rest :: rules) |
37 | else |
38 | loop rules |
39 | | _ => loop rules |
40 | in |
41 | loop [] |
42 | before TextIO.closeIn inf |
43 | end handle IO.Io _ => [] |
44 | |
45 | |
46 | end |