1
2 /*
3 VoIPong Voice Over IP Sniffer
4 Copyright (C) 2004 Murat Balaban <murat || enderunix.org>
5 All rights reserved.
6
7 This program is free software; you can redistribute it and/or
8 modify it under the terms of the GNU General Public License
9 as published by the Free Software Foundation; either version 2
10 of the License, or (at your option) any later version.
11
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
20 */
21
22
23 #include <signal.h>
24 #include <string.h>
25 #include <errno.h>
26
27
28 #include <voipong.h>
29 #include <miscutil.h>
30 #include <voipongsign.h>
31 #include <voipongworker.h>
32
33 #include <sys/types.h>
34 #include <sys/stat.h>
35 #include <sys/wait.h>
36
37 extern void wexit(int);
38 extern int gmainprocess;
39
40 void
sigint_handler()41 sigint_handler()
42 {
43 misc_debug(0, "INTERRUPT signal caught, starting shutdown procedures...\n");
44 wexit(0);
45 }
46
47
sigusr2_handler()48 void sigusr2_handler()
49 {
50 }
51
52 void
sigalrm_handler()53 sigalrm_handler()
54 {
55 }
56
57 void
sigterm_handler()58 sigterm_handler()
59 {
60 misc_debug(0, "SHUTDOWN signal caught, starting shutdown procedures...\n");
61 graceful_shutdown();
62 wexit(0);
63 }
64
65
66 void
sigworkeralrm_handler()67 sigworkeralrm_handler()
68 {
69 }
70
71 void
sigworkerterm_handler()72 sigworkerterm_handler()
73 {
74 misc_debug(0, "SHUTDOWN signal caught, starting shutdown procedures...\n");
75 worker_graceful_exit(0);
76 }
77
78
79
sighandler(int signal)80 void sighandler(int signal)
81 {
82 switch(signal) {
83 case SIGCHLD:
84 process_deadchild();
85 break;
86 case SIGINT:
87 sigterm_handler();
88 break;
89 case SIGTERM:
90 sigterm_handler();
91 break;
92 case SIGKILL:
93 sigterm_handler();
94 break;
95 case SIGPIPE:
96 break;
97 case SIGALRM:
98 sigalrm_handler();
99 break;
100 case SIGUSR2:
101 sigusr2_handler();
102 break;
103 default:
104 break;
105 }
106 }
107
sigworkerhandler(int signal)108 void sigworkerhandler(int signal)
109 {
110 switch(signal) {
111 case SIGINT:
112 case SIGTERM:
113 sigworkerterm_handler();
114 break;
115 case SIGPIPE:
116 break;
117 case SIGALRM:
118 sigworkeralrm_handler();
119 break;
120 default:
121 break;
122 }
123 }
124