syslogd.c - codeaurora/busybox - Gitiles

 /* vi: set sw=4 ts=4: */
 /*
  * Mini syslogd implementation for busybox
  *
  * Copyright (C) 1999 by Lineo, inc.
  * Written by Erik Andersen <andersen@lineo.com>, <andersee@debian.org>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation; either version 2 of the License, or
  * (at your option) any later version.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  * General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  *
  */

 #include "internal.h"
 #include <ctype.h>
 #include <errno.h>
 #include <fcntl.h>
 #include <netdb.h>
 #include <paths.h>
 #include <signal.h>
 #include <stdarg.h>
 #include <stdio.h>
 #include <sys/klog.h>
 #include <sys/socket.h>
 #include <sys/stat.h>
 #include <sys/types.h>
 #include <sys/un.h>
 #include <time.h>
 #include <unistd.h>

 #define ksyslog klogctl
 extern int ksyslog(int type, char *buf, int len);


 /* SYSLOG_NAMES defined to pull some extra junk from syslog.h */
 #define SYSLOG_NAMES
 #include <sys/syslog.h>

 /* Path for the file where all log messages are written */
 #define __LOG_FILE "/var/log/messages"

 /* Path to the unix socket */
 char lfile[PATH_MAX] = "";

 static char *logFilePath = __LOG_FILE;

 /* interval between marks in seconds */
 static int MarkInterval = 20 * 60;

 /* localhost's name */
 static char LocalHostName[32];

 static const char syslogd_usage[] =
 	"syslogd [OPTION]...\n\n"
 	"Linux system and kernel (provides klogd) logging utility.\n"
 	"Note that this version of syslogd/klogd ignores /etc/syslog.conf.\n\n"
 	"Options:\n"
 	"\t-m\tChange the mark timestamp interval. default=20min. 0=off\n"
 	"\t-n\tDo not fork into the background (for when run by init)\n"
 #ifdef BB_KLOGD
 	"\t-K\tDo not start up the klogd process (by default syslogd spawns klogd).\n"
 #endif
 	"\t-O\tSpecify an alternate log file.  default=/var/log/messages\n";

 /* Note: There is also a function called "message()" in init.c */
 /* Print a message to the log file. */
 static void message(char *fmt, ...)
 		   __attribute__ ((format (printf, 1, 2)));
 static void message(char *fmt, ...)
 {
 	int fd;
 	va_list arguments;

 	if (
 		(fd =
 		 device_open(logFilePath,
 					 O_WRONLY | O_CREAT | O_NOCTTY | O_APPEND |
 					 O_NONBLOCK)) >= 0) {
 		va_start(arguments, fmt);
 		vdprintf(fd, fmt, arguments);
 		va_end(arguments);
 		close(fd);
 	} else {
 		/* Always send console messages to /dev/console so people will see them. */
 		if (
 			(fd =
 			 device_open(_PATH_CONSOLE,
 						 O_WRONLY | O_NOCTTY | O_NONBLOCK)) >= 0) {
 			va_start(arguments, fmt);
 			vdprintf(fd, fmt, arguments);
 			va_end(arguments);
 			close(fd);
 		} else {
 			fprintf(stderr, "Bummer, can't print: ");
 			va_start(arguments, fmt);
 			vfprintf(stderr, fmt, arguments);
 			fflush(stderr);
 			va_end(arguments);
 		}
 	}
 }

 static void logMessage(int pri, char *msg)
 {
 	time_t now;
 	char *timestamp;
 	static char res[20] = "";
 	CODE *c_pri, *c_fac;

 	if (pri != 0) {
 		for (c_fac = facilitynames;
 			 c_fac->c_name && !(c_fac->c_val == LOG_FAC(pri) << 3); c_fac++);
 		for (c_pri = prioritynames;
 			 c_pri->c_name && !(c_pri->c_val == LOG_PRI(pri)); c_pri++);
 		if (*c_fac->c_name == '\0' || *c_pri->c_name == '\0')
 			snprintf(res, sizeof(res), "<%d>", pri);
 		else
 			snprintf(res, sizeof(res), "%s.%s", c_fac->c_name, c_pri->c_name);
 	}

 	if (strlen(msg) < 16 || msg[3] != ' ' || msg[6] != ' ' ||
 		msg[9] != ':' || msg[12] != ':' || msg[15] != ' ') {
 		time(&now);
 		timestamp = ctime(&now) + 4;
 		timestamp[15] = '\0';
 	} else {
 		timestamp = msg;
 		timestamp[15] = '\0';
 		msg += 16;
 	}

 	/* todo: supress duplicates */

 	/* now spew out the message to wherever it is supposed to go */
 	message("%s %s %s %s\n", timestamp, LocalHostName, res, msg);
 }

 static void quit_signal(int sig)
 {
 	logMessage(0, "System log daemon exiting.");
 	unlink(lfile);
 	exit(TRUE);
 }

 static void domark(int sig)
 {
 	if (MarkInterval > 0) {
 		logMessage(LOG_SYSLOG | LOG_INFO, "-- MARK --");
 		alarm(MarkInterval);
 	}
 }

 static void doSyslogd (void) __attribute__ ((noreturn));
 static void doSyslogd (void)
 {
 	struct sockaddr_un sunx;
 	size_t addrLength;
 	int sock_fd;
 	fd_set readfds;
 	char lfile[PATH_MAX];
 	int t = readlink(_PATH_LOG, lfile, sizeof(lfile) - 1); /* Resolve symlinks */

 	/* Set up sig handlers */
 	signal (SIGINT,  quit_signal);
 	signal (SIGTERM, quit_signal);
 	signal (SIGQUIT, quit_signal);
 	signal (SIGHUP,  SIG_IGN);
 	signal (SIGALRM, domark);
 	alarm (MarkInterval);

 	if (t == -1)
 		strncpy(lfile, _PATH_LOG, sizeof(lfile));
 	else
 		lfile[t] = '\0';

 	unlink (lfile);

 	memset (&sunx, 0, sizeof(sunx));

 	sunx.sun_family = AF_UNIX;
 	strncpy (sunx.sun_path, lfile, sizeof(sunx.sun_path));
 	if ((sock_fd = socket(AF_UNIX, SOCK_STREAM, 0)) < 0) {
 		perror ("Couldn't obtain descriptor for socket " _PATH_LOG);
 		exit (FALSE);
 	}

 	addrLength = sizeof (sunx.sun_family) + strlen (sunx.sun_path);
 	if ((bind (sock_fd, (struct sockaddr *) &sunx, addrLength)) ||
 		(listen (sock_fd, 5))) {
 		perror ("Could not connect to socket " _PATH_LOG);
 		exit (FALSE);
 	}

 	if (chmod (lfile, 0666) < 0) {
 		perror ("Could not set permission on " _PATH_LOG);
 		exit (FALSE);
 	}

 	FD_ZERO (&readfds);
 	FD_SET (sock_fd, &readfds);

 	logMessage (0, "syslogd started: BusyBox v" BB_VER " (" BB_BT ")");

 	for (;;) {
 		int n_ready;
 		int fd;

 		if ((n_ready = select (FD_SETSIZE, &readfds, NULL, NULL, NULL)) < 0) {
 			if (errno == EINTR) continue; /* alarm may have happened. */
 			perror ("select");
 			exit (FALSE);
 		}

 		/* Skip stdin, stdout, stderr */
 		for (fd = 3; fd <= FD_SETSIZE; fd++) {
 			if (FD_ISSET (fd, &readfds)) {
 				if (fd == sock_fd) {
 					int conn;
 					if ((conn = accept(sock_fd, (struct sockaddr *) &sunx,
 									   &addrLength)) < 0) {
 						perror ("accept");
 						exit (FALSE); /* #### ??? */
 					}
 					FD_SET (conn, &readfds);
 				}
 				else {
 #define			  BUFSIZE 1024 + 1
 					char buf[BUFSIZE];
 					char *q, *p;
 					int n_read;

 					n_read = read (fd, buf, BUFSIZE);

 					if (n_read < 0) {
 						perror ("read error");
 						goto close_fd;
 					}
 					else if (n_read > 0) {
 						char line[BUFSIZE];
 						unsigned char c;
 						int pri = (LOG_USER | LOG_NOTICE);

 						memset (line, 0, sizeof(line));
 						p = buf;
 						q = line;
 						while (p && (c = *p) && q < &line[sizeof(line) - 1]) {
 							if (c == '<') {
 								/* Parse the magic priority number */
 								pri = 0;
 								while (isdigit(*(++p))) {
 									pri = 10 * pri + (*p - '0');
 								}
 								if (pri & ~(LOG_FACMASK | LOG_PRIMASK))
 									pri = (LOG_USER | LOG_NOTICE);
 							} else if (c == '\n') {
 								*q++ = ' ';
 							} else if (iscntrl(c) && (c < 0177)) {
 								*q++ = '^';
 								*q++ = c ^ 0100;
 							} else {
 								*q++ = c;
 							}
 							p++;
 						}
 						*q = '\0';

 						/* Now log it */
 						logMessage(pri, line);

 					close_fd:
 						close (fd);
 						FD_CLR (fd, &readfds);
 					}
 					else {		/* EOF */
 						goto close_fd;
 					}
 				}
 			}
 		}
 	}
 }

 #ifdef BB_KLOGD

 static void klogd_signal(int sig)
 {
 	ksyslog(7, NULL, 0);
 	ksyslog(0, 0, 0);
 	logMessage(0, "Kernel log daemon exiting.");
 	exit(TRUE);
 }

 static void doKlogd (void) __attribute__ ((noreturn));
 static void doKlogd (void)
 {
 	int priority = LOG_INFO;
 	char log_buffer[4096];
 	char *logp;

 	/* Set up sig handlers */
 	signal(SIGINT, klogd_signal);
 	signal(SIGKILL, klogd_signal);
 	signal(SIGTERM, klogd_signal);
 	signal(SIGHUP, SIG_IGN);
 	logMessage(0, "klogd started: "
 			   "BusyBox v" BB_VER " (" BB_BT ")");

 	ksyslog(1, NULL, 0);

 	while (1) {
 		/* Use kernel syscalls */
 		memset(log_buffer, '\0', sizeof(log_buffer));
 		if (ksyslog(2, log_buffer, sizeof(log_buffer)) < 0) {
 			char message[80];

 			if (errno == EINTR)
 				continue;
 			snprintf(message, 79, "klogd: Error return from sys_sycall: " \
 					 "%d - %s.\n", errno, strerror(errno));
 			logMessage(LOG_SYSLOG | LOG_ERR, message);
 			exit(1);
 		}
 		logp = log_buffer;
 		if (*log_buffer == '<') {
 			switch (*(log_buffer + 1)) {
 			case '0':
 				priority = LOG_EMERG;
 				break;
 			case '1':
 				priority = LOG_ALERT;
 				break;
 			case '2':
 				priority = LOG_CRIT;
 				break;
 			case '3':
 				priority = LOG_ERR;
 				break;
 			case '4':
 				priority = LOG_WARNING;
 				break;
 			case '5':
 				priority = LOG_NOTICE;
 				break;
 			case '6':
 				priority = LOG_INFO;
 				break;
 			case '7':
 			default:
 				priority = LOG_DEBUG;
 			}
 			logp += 3;
 		}
 		logMessage(LOG_KERN | priority, logp);
 	}

 }

 #endif

 static void daemon_init (char **argv, char *dz, void fn (void)) __attribute__ ((noreturn));
 static void daemon_init (char **argv, char *dz, void fn (void))
 {
 	setsid();
 	chdir ("/");
 	strncpy(argv[0], dz, strlen(argv[0]));
 	fn();
 	exit(0);
 }

 extern int syslogd_main(int argc, char **argv)
 {
 	int pid, klogd_pid;
 	int doFork = TRUE;

 #ifdef BB_KLOGD
 	int startKlogd = TRUE;
 #endif
 	int stopDoingThat = FALSE;
 	char *p;
 	char **argv1 = argv;

 	while (--argc > 0 && **(++argv1) == '-') {
 		stopDoingThat = FALSE;
 		while (stopDoingThat == FALSE && *(++(*argv1))) {
 			switch (**argv1) {
 			case 'm':
 				if (--argc == 0) {
 					usage(syslogd_usage);
 				}
 				MarkInterval = atoi(*(++argv1)) * 60;
 				break;
 			case 'n':
 				doFork = FALSE;
 				break;
 #ifdef BB_KLOGD
 			case 'K':
 				startKlogd = FALSE;
 				break;
 #endif
 			case 'O':
 				if (--argc == 0) {
 					usage(syslogd_usage);
 				}
 				logFilePath = *(++argv1);
 				stopDoingThat = TRUE;
 				break;
 			default:
 				usage(syslogd_usage);
 			}
 		}
 	}

 	/* Store away localhost's name before the fork */
 	gethostname(LocalHostName, sizeof(LocalHostName));
 	if ((p = strchr(LocalHostName, '.'))) {
 		*p++ = '\0';
 	}

 	umask(0);

 #ifdef BB_KLOGD
 	/* Start up the klogd process */
 	if (startKlogd == TRUE) {
 		klogd_pid = fork();
 		if (klogd_pid == 0) {
 			daemon_init (argv, "klogd", doKlogd);
 		}
 	}
 #endif

 	if (doFork == TRUE) {
 		pid = fork();
 		if (pid < 0)
 			exit(pid);
 		else if (pid == 0) {
 			daemon_init (argv, "syslogd", doSyslogd);
 		}
 	} else {
 		doSyslogd();
 	}

 	exit(TRUE);
 }

 /*
  * Local Variables
  * c-file-style: "linux"
  * c-basic-offset: 4
  * tab-width: 4
  * End:
  */
	/* vi: set sw=4 ts=4: */
	/*
	* Mini syslogd implementation for busybox
	*
	* Copyright (C) 1999 by Lineo, inc.
	* Written by Erik Andersen <andersen@lineo.com>, <andersee@debian.org>
	*
	* This program is free software; you can redistribute it and/or modify
	* it under the terms of the GNU General Public License as published by
	* the Free Software Foundation; either version 2 of the License, or
	* (at your option) any later version.
	*
	* This program is distributed in the hope that it will be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	* General Public License for more details.
	*
	* You should have received a copy of the GNU General Public License
	* along with this program; if not, write to the Free Software
	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	*
	*/

	#include "internal.h"
	#include <ctype.h>
	#include <errno.h>
	#include <fcntl.h>
	#include <netdb.h>
	#include <paths.h>
	#include <signal.h>
	#include <stdarg.h>
	#include <stdio.h>
	#include <sys/klog.h>
	#include <sys/socket.h>
	#include <sys/stat.h>
	#include <sys/types.h>
	#include <sys/un.h>
	#include <time.h>
	#include <unistd.h>

	#define ksyslog klogctl
	extern int ksyslog(int type, char *buf, int len);


	/* SYSLOG_NAMES defined to pull some extra junk from syslog.h */
	#define SYSLOG_NAMES
	#include <sys/syslog.h>

	/* Path for the file where all log messages are written */
	#define __LOG_FILE "/var/log/messages"

	/* Path to the unix socket */
	char lfile[PATH_MAX] = "";

	static char *logFilePath = __LOG_FILE;

	/* interval between marks in seconds */
	static int MarkInterval = 20 * 60;

	/* localhost's name */
	static char LocalHostName[32];

	static const char syslogd_usage[] =
	"syslogd [OPTION]...\n\n"
	"Linux system and kernel (provides klogd) logging utility.\n"
	"Note that this version of syslogd/klogd ignores /etc/syslog.conf.\n\n"
	"Options:\n"
	"\t-m\tChange the mark timestamp interval. default=20min. 0=off\n"
	"\t-n\tDo not fork into the background (for when run by init)\n"
	#ifdef BB_KLOGD
	"\t-K\tDo not start up the klogd process (by default syslogd spawns klogd).\n"
	#endif
	"\t-O\tSpecify an alternate log file. default=/var/log/messages\n";

	/* Note: There is also a function called "message()" in init.c */
	/* Print a message to the log file. */
	static void message(char *fmt, ...)
	__attribute__ ((format (printf, 1, 2)));
	static void message(char *fmt, ...)
	{
	int fd;
	va_list arguments;

	if (
	(fd =
	device_open(logFilePath,
	O_WRONLY \| O_CREAT \| O_NOCTTY \| O_APPEND \|
	O_NONBLOCK)) >= 0) {
	va_start(arguments, fmt);
	vdprintf(fd, fmt, arguments);
	va_end(arguments);
	close(fd);
	} else {
	/* Always send console messages to /dev/console so people will see them. */
	if (
	(fd =
	device_open(_PATH_CONSOLE,
	O_WRONLY \| O_NOCTTY \| O_NONBLOCK)) >= 0) {
	va_start(arguments, fmt);
	vdprintf(fd, fmt, arguments);
	va_end(arguments);
	close(fd);
	} else {
	fprintf(stderr, "Bummer, can't print: ");
	va_start(arguments, fmt);
	vfprintf(stderr, fmt, arguments);
	fflush(stderr);
	va_end(arguments);
	}
	}
	}

	static void logMessage(int pri, char *msg)
	{
	time_t now;
	char *timestamp;
	static char res[20] = "";
	CODE c_pri, c_fac;

	if (pri != 0) {
	for (c_fac = facilitynames;
	c_fac->c_name && !(c_fac->c_val == LOG_FAC(pri) << 3); c_fac++);
	for (c_pri = prioritynames;
	c_pri->c_name && !(c_pri->c_val == LOG_PRI(pri)); c_pri++);
	if (c_fac->c_name == '\0' \|\| c_pri->c_name == '\0')
	snprintf(res, sizeof(res), "<%d>", pri);
	else
	snprintf(res, sizeof(res), "%s.%s", c_fac->c_name, c_pri->c_name);
	}

	if (strlen(msg) < 16 \|\| msg[3] != ' ' \|\| msg[6] != ' ' \|\|
	msg[9] != ':' \|\| msg[12] != ':' \|\| msg[15] != ' ') {
	time(&now);
	timestamp = ctime(&now) + 4;
	timestamp[15] = '\0';
	} else {
	timestamp = msg;
	timestamp[15] = '\0';
	msg += 16;
	}

	/* todo: supress duplicates */

	/* now spew out the message to wherever it is supposed to go */
	message("%s %s %s %s\n", timestamp, LocalHostName, res, msg);
	}

	static void quit_signal(int sig)
	{
	logMessage(0, "System log daemon exiting.");
	unlink(lfile);
	exit(TRUE);
	}

	static void domark(int sig)
	{
	if (MarkInterval > 0) {
	logMessage(LOG_SYSLOG \| LOG_INFO, "-- MARK --");
	alarm(MarkInterval);
	}
	}

	static void doSyslogd (void) __attribute__ ((noreturn));
	static void doSyslogd (void)
	{
	struct sockaddr_un sunx;
	size_t addrLength;
	int sock_fd;
	fd_set readfds;
	char lfile[PATH_MAX];
	int t = readlink(_PATH_LOG, lfile, sizeof(lfile) - 1); /* Resolve symlinks */

	/* Set up sig handlers */
	signal (SIGINT, quit_signal);
	signal (SIGTERM, quit_signal);
	signal (SIGQUIT, quit_signal);
	signal (SIGHUP, SIG_IGN);
	signal (SIGALRM, domark);
	alarm (MarkInterval);

	if (t == -1)
	strncpy(lfile, _PATH_LOG, sizeof(lfile));
	else
	lfile[t] = '\0';

	unlink (lfile);

	memset (&sunx, 0, sizeof(sunx));

	sunx.sun_family = AF_UNIX;
	strncpy (sunx.sun_path, lfile, sizeof(sunx.sun_path));
	if ((sock_fd = socket(AF_UNIX, SOCK_STREAM, 0)) < 0) {
	perror ("Couldn't obtain descriptor for socket " _PATH_LOG);
	exit (FALSE);
	}

	addrLength = sizeof (sunx.sun_family) + strlen (sunx.sun_path);
	if ((bind (sock_fd, (struct sockaddr *) &sunx, addrLength)) \|\|
	(listen (sock_fd, 5))) {
	perror ("Could not connect to socket " _PATH_LOG);
	exit (FALSE);
	}

	if (chmod (lfile, 0666) < 0) {
	perror ("Could not set permission on " _PATH_LOG);
	exit (FALSE);
	}

	FD_ZERO (&readfds);
	FD_SET (sock_fd, &readfds);

	logMessage (0, "syslogd started: BusyBox v" BB_VER " (" BB_BT ")");

	for (;;) {
	int n_ready;
	int fd;

	if ((n_ready = select (FD_SETSIZE, &readfds, NULL, NULL, NULL)) < 0) {
	if (errno == EINTR) continue; /* alarm may have happened. */
	perror ("select");
	exit (FALSE);
	}

	/* Skip stdin, stdout, stderr */
	for (fd = 3; fd <= FD_SETSIZE; fd++) {
	if (FD_ISSET (fd, &readfds)) {
	if (fd == sock_fd) {
	int conn;
	if ((conn = accept(sock_fd, (struct sockaddr *) &sunx,
	&addrLength)) < 0) {
	perror ("accept");
	exit (FALSE); /* #### ??? */
	}
	FD_SET (conn, &readfds);
	}
	else {
	#define BUFSIZE 1024 + 1
	char buf[BUFSIZE];
	char q, p;
	int n_read;

	n_read = read (fd, buf, BUFSIZE);

	if (n_read < 0) {
	perror ("read error");
	goto close_fd;
	}
	else if (n_read > 0) {
	char line[BUFSIZE];
	unsigned char c;
	int pri = (LOG_USER \| LOG_NOTICE);

	memset (line, 0, sizeof(line));
	p = buf;
	q = line;
	while (p && (c = *p) && q < &line[sizeof(line) - 1]) {
	if (c == '<') {
	/* Parse the magic priority number */
	pri = 0;
	while (isdigit(*(++p))) {
	pri = 10 * pri + (*p - '0');
	}
	if (pri & ~(LOG_FACMASK \| LOG_PRIMASK))
	pri = (LOG_USER \| LOG_NOTICE);
	} else if (c == '\n') {
	*q++ = ' ';
	} else if (iscntrl(c) && (c < 0177)) {
	*q++ = '^';
	*q++ = c ^ 0100;
	} else {
	*q++ = c;
	}
	p++;
	}
	*q = '\0';

	/* Now log it */
	logMessage(pri, line);

	close_fd:
	close (fd);
	FD_CLR (fd, &readfds);
	}
	else { /* EOF */
	goto close_fd;
	}
	}
	}
	}
	}
	}

	#ifdef BB_KLOGD

	static void klogd_signal(int sig)
	{
	ksyslog(7, NULL, 0);
	ksyslog(0, 0, 0);
	logMessage(0, "Kernel log daemon exiting.");
	exit(TRUE);
	}

	static void doKlogd (void) __attribute__ ((noreturn));
	static void doKlogd (void)
	{
	int priority = LOG_INFO;
	char log_buffer[4096];
	char *logp;

	/* Set up sig handlers */
	signal(SIGINT, klogd_signal);
	signal(SIGKILL, klogd_signal);
	signal(SIGTERM, klogd_signal);
	signal(SIGHUP, SIG_IGN);
	logMessage(0, "klogd started: "
	"BusyBox v" BB_VER " (" BB_BT ")");

	ksyslog(1, NULL, 0);

	while (1) {
	/* Use kernel syscalls */
	memset(log_buffer, '\0', sizeof(log_buffer));
	if (ksyslog(2, log_buffer, sizeof(log_buffer)) < 0) {
	char message[80];

	if (errno == EINTR)
	continue;
	snprintf(message, 79, "klogd: Error return from sys_sycall: " \
	"%d - %s.\n", errno, strerror(errno));
	logMessage(LOG_SYSLOG \| LOG_ERR, message);
	exit(1);
	}
	logp = log_buffer;
	if (*log_buffer == '<') {
	switch (*(log_buffer + 1)) {
	case '0':
	priority = LOG_EMERG;
	break;
	case '1':
	priority = LOG_ALERT;
	break;
	case '2':
	priority = LOG_CRIT;
	break;
	case '3':
	priority = LOG_ERR;
	break;
	case '4':
	priority = LOG_WARNING;
	break;
	case '5':
	priority = LOG_NOTICE;
	break;
	case '6':
	priority = LOG_INFO;
	break;
	case '7':
	default:
	priority = LOG_DEBUG;
	}
	logp += 3;
	}
	logMessage(LOG_KERN \| priority, logp);
	}

	}

	#endif

	static void daemon_init (char *argv, char dz, void fn (void)) __attribute__ ((noreturn));
	static void daemon_init (char *argv, char dz, void fn (void))
	{
	setsid();
	chdir ("/");
	strncpy(argv[0], dz, strlen(argv[0]));
	fn();
	exit(0);
	}

	extern int syslogd_main(int argc, char **argv)
	{
	int pid, klogd_pid;
	int doFork = TRUE;

	#ifdef BB_KLOGD
	int startKlogd = TRUE;
	#endif
	int stopDoingThat = FALSE;
	char *p;
	char **argv1 = argv;

	while (--argc > 0 && **(++argv1) == '-') {
	stopDoingThat = FALSE;
	while (stopDoingThat == FALSE && (++(argv1))) {
	switch (**argv1) {
	case 'm':
	if (--argc == 0) {
	usage(syslogd_usage);
	}
	MarkInterval = atoi((++argv1)) 60;
	break;
	case 'n':
	doFork = FALSE;
	break;
	#ifdef BB_KLOGD
	case 'K':
	startKlogd = FALSE;
	break;
	#endif
	case 'O':
	if (--argc == 0) {
	usage(syslogd_usage);
	}
	logFilePath = *(++argv1);
	stopDoingThat = TRUE;
	break;
	default:
	usage(syslogd_usage);
	}
	}
	}

	/* Store away localhost's name before the fork */
	gethostname(LocalHostName, sizeof(LocalHostName));
	if ((p = strchr(LocalHostName, '.'))) {
	*p++ = '\0';
	}

	umask(0);

	#ifdef BB_KLOGD
	/* Start up the klogd process */
	if (startKlogd == TRUE) {
	klogd_pid = fork();
	if (klogd_pid == 0) {
	daemon_init (argv, "klogd", doKlogd);
	}
	}
	#endif

	if (doFork == TRUE) {
	pid = fork();
	if (pid < 0)
	exit(pid);
	else if (pid == 0) {
	daemon_init (argv, "syslogd", doSyslogd);
	}
	} else {
	doSyslogd();
	}

	exit(TRUE);
	}

	/*
	* Local Variables
	* c-file-style: "linux"
	* c-basic-offset: 4
	* tab-width: 4
	* End:
	*/