07d71f34 |
1 | /* -*-c-*- |
2 | * |
07d71f34 |
3 | * Standard routines for forwarding sources |
4 | * |
5 | * (c) 1999 Straylight/Edgeware |
6 | */ |
7 | |
206212ca |
8 | /*----- Licensing notice --------------------------------------------------* |
07d71f34 |
9 | * |
10 | * This file is part of the `fw' port forwarder. |
11 | * |
12 | * `fw' is free software; you can redistribute it and/or modify |
13 | * it under the terms of the GNU General Public License as published by |
14 | * the Free Software Foundation; either version 2 of the License, or |
15 | * (at your option) any later version. |
206212ca |
16 | * |
07d71f34 |
17 | * `fw' is distributed in the hope that it will be useful, |
18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
20 | * GNU General Public License for more details. |
206212ca |
21 | * |
07d71f34 |
22 | * You should have received a copy of the GNU General Public License |
23 | * along with `fw'; if not, write to the Free Software Foundation, |
24 | * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
25 | */ |
26 | |
47a7631f |
27 | #include "fw.h" |
07d71f34 |
28 | |
29 | /*----- Static variables --------------------------------------------------*/ |
30 | |
31 | static source *sources = 0; |
32 | |
33 | /*----- Main code ---------------------------------------------------------*/ |
34 | |
35 | /* --- @source_add@ --- * |
36 | * |
37 | * Arguments: @source *s@ = pointer to a source |
38 | * |
39 | * Returns: --- |
40 | * |
41 | * Use: Adds a source to the master list. Only do this for passive |
42 | * sources (e.g., listening sockets), not active sources (e.g., |
43 | * executable programs). |
44 | */ |
45 | |
46 | void source_add(source *s) |
47 | { |
48 | s->next = sources; |
49 | s->prev = 0; |
50 | if (sources) |
51 | sources->prev = s; |
52 | sources = s; |
53 | } |
54 | |
55 | /* --- @source_remove@ --- * |
56 | * |
57 | * Arguments: @source *s@ = pointer to a source |
58 | * |
59 | * Returns: --- |
60 | * |
61 | * Use: Removes a source from the master list. |
62 | */ |
63 | |
64 | void source_remove(source *s) |
65 | { |
66 | if (s->next) |
67 | s->next->prev = s->prev; |
68 | if (s->prev) |
69 | s->prev->next = s->next; |
70 | else |
71 | sources = s->next; |
72 | } |
73 | |
74 | /* --- @source_killall@ --- * |
75 | * |
76 | * Arguments: --- |
77 | * |
78 | * Returns: --- |
79 | * |
80 | * Use: Frees all sources. |
81 | */ |
82 | |
83 | void source_killall(void) |
84 | { |
85 | source *s = sources; |
86 | while (s) { |
87 | source *ss = s; |
88 | s = s->next; |
89 | ss->ops->destroy(ss); |
90 | } |
91 | sources = 0; |
92 | } |
93 | |
94 | /*----- That's all, folks -------------------------------------------------*/ |