49 lines
1.3 KiB
C
49 lines
1.3 KiB
C
/*
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* (c) 2005 Nico Schottelius (nico-linux at schottelius.org)
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* cinit.c
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* part of cLinux/cinit
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*/
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#include <signal.h>
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#include <stdio.h>
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#include "cinit.h"
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void set_signals(int action)
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{
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struct sigaction sa;
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if(action == ACT_SERV) {
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sa.sa_handler=SIG_IGN;
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} else {
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sa.sa_handler=SIG_DFL;
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}
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sigaction(SIGINT,&sa,NULL); /* ignore ctr+c and ctr+alt+del */
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sigaction(SIGPIPE,&sa,NULL); /* what todo when pipe/fifo closed */
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sigaction(SIGQUIT,&sa,NULL); /* QUIT... */
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sigaction(SIGTTIN,&sa,NULL);
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sigaction(SIGTTOU,&sa,NULL);
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sigaction(SIGSTOP,&sa,NULL);
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/* cleaning dead processes */
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if(action == ACT_SERV) {
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sa.sa_handler=sig_child;
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}
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sigaction(SIGCHLD,&sa,NULL); /* what todo when a child exited */
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/* sigio is called to act on the socket */
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if(action == ACT_SERV) {
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sa.sa_handler=sigio;
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}
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sigaction(SIGIO,&sa,NULL);
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/* signal handlers to do special things with: reboot */
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if(action == ACT_SERV) {
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sa.sa_handler=sig_reboot;
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}
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sigaction(SIGUSR1,&sa,NULL); /* halt */
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sigaction(SIGUSR2,&sa,NULL); /* Rescue */
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sigaction(SIGTERM,&sa,NULL); /* poweroff */
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sigaction(SIGHUP,&sa,NULL); /* reboot */
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sigaction(SIGCONT,&sa,NULL); /* update */
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}
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