07d71f34 |
1 | /* -*-c-*- |
07d71f34 |
2 | * |
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 | |
07d71f34 |
27 | /*----- Header files ------------------------------------------------------*/ |
28 | |
29 | #include <stdio.h> |
30 | #include <stdlib.h> |
31 | #include <string.h> |
32 | |
33 | #include "source.h" |
34 | |
35 | /*----- Static variables --------------------------------------------------*/ |
36 | |
37 | static source *sources = 0; |
38 | |
39 | /*----- Main code ---------------------------------------------------------*/ |
40 | |
41 | /* --- @source_add@ --- * |
42 | * |
43 | * Arguments: @source *s@ = pointer to a source |
44 | * |
45 | * Returns: --- |
46 | * |
47 | * Use: Adds a source to the master list. Only do this for passive |
48 | * sources (e.g., listening sockets), not active sources (e.g., |
49 | * executable programs). |
50 | */ |
51 | |
52 | void source_add(source *s) |
53 | { |
54 | s->next = sources; |
55 | s->prev = 0; |
56 | if (sources) |
57 | sources->prev = s; |
58 | sources = s; |
59 | } |
60 | |
61 | /* --- @source_remove@ --- * |
62 | * |
63 | * Arguments: @source *s@ = pointer to a source |
64 | * |
65 | * Returns: --- |
66 | * |
67 | * Use: Removes a source from the master list. |
68 | */ |
69 | |
70 | void source_remove(source *s) |
71 | { |
72 | if (s->next) |
73 | s->next->prev = s->prev; |
74 | if (s->prev) |
75 | s->prev->next = s->next; |
76 | else |
77 | sources = s->next; |
78 | } |
79 | |
80 | /* --- @source_killall@ --- * |
81 | * |
82 | * Arguments: --- |
83 | * |
84 | * Returns: --- |
85 | * |
86 | * Use: Frees all sources. |
87 | */ |
88 | |
89 | void source_killall(void) |
90 | { |
91 | source *s = sources; |
92 | while (s) { |
93 | source *ss = s; |
94 | s = s->next; |
95 | ss->ops->destroy(ss); |
96 | } |
97 | sources = 0; |
98 | } |
99 | |
100 | /*----- That's all, folks -------------------------------------------------*/ |