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jfr.im git - solanum.git/blob - ircd/ircd_signal.c
1 /************************************************************************
2 * IRC - Internet Relay Chat, src/ircd_signal.c
3 * Copyright (C) 1990 Jarkko Oikarinen and
4 * University of Oulu, Computing Center
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 1, or (at your option)
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 #include "ircd_signal.h"
23 #include "ircd.h" /* dorehash */
24 #include "restart.h" /* server_reboot */
31 * dummy_handler - don't know if this is really needed but if alarm is still
32 * being used we probably will
35 dummy_handler(int sig
)
42 sigchld_handler(int sig
)
47 while (waitpid(-1, &status
, WNOHANG
) > 0)
53 * sigterm_handler - exit the server
56 sigterm_handler(int sig
)
58 ircd_shutdown("Received SIGTERM");
62 * sighup_handler - reread the server configuration
65 sighup_handler(int sig
)
71 * sigusr1_handler - reread the motd file
74 sigusr1_handler(int sig
)
80 sigusr2_handler(int sig
)
86 * sigint_handler - restart the server
89 sigint_handler(int sig
)
91 static int restarting
= 0;
93 if(server_state_foreground
)
95 ilog(L_MAIN
, "Server exiting on SIGINT");
100 ilog(L_MAIN
, "Server Restarting on SIGINT");
110 * setup_signals - initialize signal handlers for server
116 struct sigaction act
;
120 act
.sa_handler
= SIG_IGN
;
121 sigemptyset(&act
.sa_mask
);
122 sigaddset(&act
.sa_mask
, SIGPIPE
);
123 sigaddset(&act
.sa_mask
, SIGALRM
);
125 sigaddset(&act
.sa_mask
, SIGTRAP
);
129 sigaddset(&act
.sa_mask
, SIGWINCH
);
130 sigaction(SIGWINCH
, &act
, 0);
132 sigaction(SIGPIPE
, &act
, 0);
134 sigaction(SIGTRAP
, &act
, 0);
137 act
.sa_handler
= dummy_handler
;
138 sigaction(SIGALRM
, &act
, 0);
139 sigaddset(&sigs
, SIGALRM
);
141 act
.sa_handler
= sighup_handler
;
142 sigemptyset(&act
.sa_mask
);
143 sigaddset(&act
.sa_mask
, SIGHUP
);
144 sigaction(SIGHUP
, &act
, 0);
145 sigaddset(&sigs
, SIGHUP
);
147 act
.sa_handler
= sigint_handler
;
148 sigaddset(&act
.sa_mask
, SIGINT
);
149 sigaction(SIGINT
, &act
, 0);
150 sigaddset(&sigs
, SIGINT
);
152 act
.sa_handler
= sigterm_handler
;
153 sigaddset(&act
.sa_mask
, SIGTERM
);
154 sigaction(SIGTERM
, &act
, 0);
155 sigaddset(&sigs
, SIGTERM
);
157 act
.sa_handler
= sigusr1_handler
;
158 sigaddset(&act
.sa_mask
, SIGUSR1
);
159 sigaction(SIGUSR1
, &act
, 0);
160 sigaddset(&sigs
, SIGUSR1
);
162 act
.sa_handler
= sigusr2_handler
;
163 sigaddset(&act
.sa_mask
, SIGUSR2
);
164 sigaction(SIGUSR2
, &act
, 0);
165 sigaddset(&sigs
, SIGUSR2
);
167 act
.sa_handler
= sigchld_handler
;
168 sigaddset(&act
.sa_mask
, SIGCHLD
);
169 sigaction(SIGCHLD
, &act
, 0);
170 sigaddset(&sigs
, SIGCHLD
);
172 sigprocmask(SIG_UNBLOCK
, &sigs
, NULL
);