示例#1
0
static void klogd_signal(int sig ATTRIBUTE_UNUSED)
{
	klogctl(7, NULL, 0);
	klogctl(0, NULL, 0);
	syslog(LOG_NOTICE, "klogd: exiting");
	kill_myself_with_sig(sig);
}
示例#2
0
文件: zcip.c 项目: sdg7/wl500g
static void cleanup(int code)
{
	remove_pidfile(pidfile);
	if (code > EXIT_FAILURE)
		kill_myself_with_sig(code);
	exit(code);
}
示例#3
0
文件: less.c 项目: ack3000/busybox
/* Exit the program gracefully */
static void less_exit(int code)
{
	set_tty_cooked();
	clear_line();
	if (code < 0)
		kill_myself_with_sig(- code); /* does not return */
	exit(code);
}
示例#4
0
文件: less.c 项目: OPSF/uClinux
/* Exit the program gracefully */
static void less_exit(int code)
{
    bb_putchar('\n');
    set_tty_cooked();
    if (code < 0)
        kill_myself_with_sig(- code); /* does not return */
    exit(code);
}
示例#5
0
static void klogd_signal(int sig)
{
	/* FYI: cmd 7 is equivalent to setting console_loglevel to 7
	 * via klogctl(8, NULL, 7). */
	klogctl(7, NULL, 0); /* "7 -- Enable printk's to console" */
	klogctl(0, NULL, 0); /* "0 -- Close the log. Currently a NOP" */
	syslog(LOG_NOTICE, "klogd: exiting");
	kill_myself_with_sig(sig);
}
示例#6
0
static void cleanup(int code)
{
	set_cursor(CURSOR_ON);
	tcsetattr(G.kbd_fd, TCSANOW, &G.term_orig);
	if (ENABLE_FEATURE_CLEAN_UP) {
		close(G.kbd_fd);
	}
	// Reset attributes
	if (!BW)
		putcsi("0m");
	bb_putchar('\n');
	if (code > EXIT_FAILURE)
		kill_myself_with_sig(code);
	exit(code);
}
示例#7
0
文件: conspy.c 项目: Ayyayay/busybox
static void cleanup(int code)
{
	set_cursor(-1); // cursor on
	tcsetattr(G.kbd_fd, TCSANOW, &G.term_orig);
	if (ENABLE_FEATURE_CLEAN_UP) {
		close(G.kbd_fd);
	}
	// Reset attributes
	if (!BW)
		fputs("\033[0m", stdout);
	bb_putchar('\n');
	if (code > 1)
		kill_myself_with_sig(code);
	exit(code);
}
示例#8
0
int klogd_main(int argc UNUSED_PARAM, char **argv)
{
	int i = 0;
	char *opt_c;
	int opt;
	int used;
	unsigned int cnt;

	opt = getopt32(argv, "c:n", &opt_c);
	if (opt & OPT_LEVEL) {
		/* Valid levels are between 1 and 8 */
		i = xatou_range(opt_c, 1, 8);
	}
	if (!(opt & OPT_FOREGROUND)) {
		bb_daemonize_or_rexec(DAEMON_CHDIR_ROOT, argv);
	}

	logmode = LOGMODE_SYSLOG;

	/* klogd_open() before openlog(), since it might use fixed fd 3,
	 * and openlog() also may use the same fd 3 if we swap them:
	 */
	klogd_open();
	openlog("kernel", 0, LOG_KERN);
	/*
	 * glibc problem: for some reason, glibc changes LOG_KERN to LOG_USER
	 * above. The logic behind this is that standard
	 * http://pubs.opengroup.org/onlinepubs/9699919799/functions/syslog.html
	 * says the following about openlog and syslog:
	 * "LOG_USER
	 *  Messages generated by arbitrary processes.
	 *  This is the default facility identifier if none is specified."
	 *
	 * I believe glibc misinterpreted this text as "if openlog's
	 * third parameter is 0 (=LOG_KERN), treat it as LOG_USER".
	 * Whereas it was meant to say "if *syslog* is called with facility
	 * 0 in its 1st parameter without prior call to openlog, then perform
	 * implicit openlog(LOG_USER)".
	 *
	 * As a result of this, eh, feature, standard klogd was forced
	 * to open-code its own openlog and syslog implementation (!).
	 *
	 * Note that prohibiting openlog(LOG_KERN) on libc level does not
	 * add any security: any process can open a socket to "/dev/log"
	 * and write a string "<0>Voila, a LOG_KERN + LOG_EMERG message"
	 *
	 * Google code search tells me there is no widespread use of
	 * openlog("foo", 0, 0), thus fixing glibc won't break userspace.
	 *
	 * The bug against glibc was filed:
	 * bugzilla.redhat.com/show_bug.cgi?id=547000
	 */

	if (i)
		klogd_setloglevel(i);

	signal(SIGHUP, SIG_IGN);
	/* We want klogd_read to not be restarted, thus _norestart: */
	bb_signals_recursive_norestart(BB_FATAL_SIGS, record_signo);

	syslog(LOG_NOTICE, "klogd started: %s", bb_banner);

	used = 0;
	cnt = 0;
	while (!bb_got_signal) {
		int n;
		int priority;
		char *start;
		char *eor;

		/* "2 -- Read from the log." */
		start = log_buffer + used;
		n = klogd_read(start, KLOGD_LOGBUF_SIZE-1 - used);
		if (n < 0) {
			if (errno == EINTR)
				continue;
			bb_perror_msg(READ_ERROR);
			break;
		}
		start[n] = '\0';
		eor = &start[n];

		/* Process each newline-terminated line in the buffer */
		start = log_buffer;
		while (1) {
			char *newline = strchrnul(start, '\n');

			if (*newline == '\0') {
				/* This line is incomplete */

				/* move it to the front of the buffer */
				overlapping_strcpy(log_buffer, start);
				used = newline - start;
				if (used < KLOGD_LOGBUF_SIZE-1) {
					/* buffer isn't full */
					break;
				}
				/* buffer is full, log it anyway */
				used = 0;
				newline = NULL;
			} else {
				*newline++ = '\0';
			}

			/* Extract the priority */
			priority = LOG_INFO;
			if (*start == '<') {
				start++;
				if (*start) {
					/* kernel never generates multi-digit prios */
					priority = (*start - '0');
					start++;
				}
				if (*start == '>')
					start++;
			}
			/* Log (only non-empty lines) */
			if (*start) {
				syslog(priority, "%s", start);
				/* give syslog time to catch up */
				++cnt;
				if ((cnt & 0x07) == 0 && (cnt < 300 || (eor - start) > 200))
					usleep(50 * 1000);
			}

			if (!newline)
				break;
			start = newline;
		}
	}

	klogd_close();
	syslog(LOG_NOTICE, "klogd: exiting");
	if (bb_got_signal)
		kill_myself_with_sig(bb_got_signal);
	return EXIT_FAILURE;
}
示例#9
0
文件: zcip.c 项目: Mr-Aloof/wl500g
static void term_handler(int sig)
{
	cleanup();
	kill_myself_with_sig(sig);
}
示例#10
0
static void sig_term_handler(int sig)
{
	if (verbose)
		bb_error_msg("got signal %u, exit", sig);
	kill_myself_with_sig(sig);
}