コード例 #1
0
ファイル: signal.c プロジェクト: orenwatson/orens-fun-ed
void enable_interrupts( void )
  {
  if( --mutex <= 0 )
    {
    mutex = 0;
    if( sighup_pending ) sighup_handler( SIGHUP );
    if( sigint_pending ) sigint_handler( SIGINT );
    }
  }
コード例 #2
0
ファイル: main.c プロジェクト: neeohw/spop
/**************************
 *** Logging management ***
 **************************/
void logging_init() {
    /* Set the default handler */
    g_log_set_default_handler(spop_log_handler, NULL);

    /* Open the log file */
    g_log_file_path = config_get_string_opt("log_file", "/var/log/spopd.log");
    if (strlen(g_log_file_path) > 0) {
        /* Install a handler so that we can reopen the file on SIGHUP */
        if (signal(SIGHUP, sighup_handler) == SIG_ERR)
            g_error("Can't install signal handler: %s", g_strerror(errno));

        /* And open the file using this handler :) */
        sighup_handler(0);
    }
}
コード例 #3
0
ファイル: sunplay.c プロジェクト: boukeversteegh/chise
/* #### sigcontext doesn't exist in Solaris.  This should be updated
   to be correct for Solaris. */
static SIGTYPE
sighandler (int sig)
{
  if (audio_fd > 0)
    {
      reset_device (0);
      close (audio_fd);
    }
  if (sig == SIGHUP && sighup_handler)
    sighup_handler (sig);
  else if (sig == SIGINT && sigint_handler)
    sigint_handler (sig);
  else
    exit (1);
}
コード例 #4
0
ファイル: linuxplay.c プロジェクト: boukeversteegh/chise
/* Intercept SIGINT and SIGHUP in order to close the audio and mixer
   devices before terminating sound output; this requires reliable
   signals as provided by "syssignal.h" */
static SIGTYPE
sighandler (int sig)
{
  if (mix_fd > 0) {
    if (audio_vol >= 0) {
      ioctl(mix_fd,SOUND_MIXER_WRITE_PCM,&audio_vol);
      audio_vol = -1; }
    if (mix_fd != audio_fd)
      close(mix_fd);
    mix_fd = -1; }
  if (audio_fd > 0) {
    ioctl(audio_fd,SNDCTL_DSP_SYNC,NULL);
    ioctl(audio_fd,SNDCTL_DSP_RESET,NULL);
    close(audio_fd);
    audio_fd = -1; }
  if (sig == SIGHUP && sighup_handler)      sighup_handler(sig);
  else if (sig == SIGINT && sigint_handler) sigint_handler(sig);
  else exit(1);
}
コード例 #5
0
ファイル: slattach.c プロジェクト: alexandermerritt/dragonfly
int
main(int argc, char **argv)
{
	int option;

	while ((option = getopt(argc, argv, "ace:fhlnr:s:u:zLK:O:S:")) != -1) {
		switch (option) {
		case 'a':
			slflags |= IFF_LINK2;
			slflags &= ~IFF_LINK0;
			break;
		case 'c':
			slflags |= IFF_LINK0;
			slflags &= ~IFF_LINK2;
			break;
		case 'e':
			exit_cmd = (char*) strdup (optarg);
			break;
		case 'f':
			foreground = 1;
			break;
		case 'h':
			flow_control |= CRTSCTS;
			break;
		case 'l':
			modem_control =	CLOCAL;	/* clear HUPCL too */
			break;
		case 'n':
			slflags |= IFF_LINK1;
			break;
		case 'r':
			redial_cmd = (char*) strdup (optarg);
			break;
		case 's':
			speed = atoi(optarg);
			break;
		case 'u':
			config_cmd = (char*) strdup (optarg);
			break;
		case 'z':
			redial_on_startup = 1;
			break;
		case 'L':
			uucp_lock = 1;
			break;
		case 'K':
			keepal = atoi(optarg);
			break;
		case 'O':
			outfill = atoi(optarg);
			break;
		case 'S':
			sl_unit = atoi(optarg);
			break;
		case '?':
		default:
			usage();
			exit_handler(1);
		}
	}

	if (optind == argc - 1)
		dev = argv[optind];

	if (optind < (argc - 1))
	    warnx("too many args, first='%s'", argv[optind]);
	if (optind > (argc - 1))
	    warnx("not enough args");
	if (dev == NULL) {
		usage();
		exit_handler(2);
	}
	if (strncmp(_PATH_DEV, dev, sizeof(_PATH_DEV) - 1)) {
		strcpy(tty_path, _PATH_DEV);
		strcat(tty_path, "/");
		strncat(tty_path, dev, 10);
		dev = tty_path;
	}
	dvname = strrchr(dev, '/'); /* always succeeds */
	dvname++;                   /* trailing tty pathname component */
	snprintf(pidfilename, sizeof(pidfilename),
	    "%sslattach.%s.pid", _PATH_VARRUN, dvname);
	printf("%s\n",pidfilename);

	if (!foreground)
		daemon(0,0);	/* fork, setsid, chdir /, and close std*. */
	/* daemon() closed stderr, so log errors from here on. */
	openlog("slattach",LOG_CONS|LOG_PID,LOG_DAEMON);

	acquire_line();		/* get tty device as controlling terminal */
	setup_line(0);		/* configure for slip line discipline */
	slip_discipline();	/* switch to slip line discipline */

	/* upon INT log a timestamp and exit.  */
	if (signal(SIGINT,sigint_handler) == SIG_ERR)
		syslog(LOG_NOTICE,"cannot install SIGINT handler: %m");
	/* upon TERM log a timestamp and exit.  */
	if (signal(SIGTERM,sigterm_handler) == SIG_ERR)
		syslog(LOG_NOTICE,"cannot install SIGTERM handler: %m");
	/* upon HUP redial and reconnect.  */
	if (signal(SIGHUP,sighup_handler) == SIG_ERR)
		syslog(LOG_NOTICE,"cannot install SIGHUP handler: %m");

	if (redial_on_startup)
		sighup_handler(0);
	else if (!(modem_control & CLOCAL)) {
		if (ioctl(fd, TIOCMGET, &comstate) < 0)
			syslog(LOG_NOTICE,"cannot get carrier state: %m");
		if (!(comstate & TIOCM_CD)) { /* check for carrier */
			/* force a redial if no carrier */
			kill (getpid(), SIGHUP);
		} else
			configure_network();
	} else
		configure_network(); /* configure the network if needed. */

	for (;;) {
		sigset_t mask;
		sigemptyset(&mask);
		sigsuspend(&mask);
	}
}