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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 |