#include "internal.h"
#include <stdio.h>
+#include <stdarg.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <unistd.h>
static const char syslogd_usage[] =
"syslogd [OPTION]...\n\n"
- "Linux system logging utility.\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";
-static int kmsg;
/* try to open up the specified device */
static int device_open(char *device, int mode)
static void quit_signal(int sig)
{
- logMessage(LOG_SYSLOG|LOG_INFO, "syslogd exiting");
+ logMessage(LOG_SYSLOG|LOG_INFO, "System log daemon exiting.");
+ unlink( _PATH_LOG);
exit( TRUE);
}
{
if (MarkInterval > 0) {
logMessage(LOG_SYSLOG|LOG_INFO, "-- MARK --");
- signal(SIGALRM, domark);
alarm(MarkInterval);
}
}
signal(SIGALRM, domark);
alarm(MarkInterval);
+
+ unlink( _PATH_LOG);
memset(&sunx, 0, sizeof(sunx));
sunx.sun_family = AF_UNIX; /* Unix domain socket */
strncpy(sunx.sun_path, _PATH_LOG, sizeof(sunx.sun_path));
- if ((fd = socket(PF_UNIX, SOCK_STREAM, 0)) < 0 ) {
+ if ((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(fd, (struct sockaddr *) &sunx, addrLength)) ||
- (chmod(_PATH_LOG, 0666) < 0) ||
- (listen(fd, 5)) )
+ (fchmod(fd, 0666) < 0) || (listen(fd, 5)) )
{
perror("Could not connect to socket " _PATH_LOG);
exit( FALSE);
}
- /* Get localhost's name */
- gethostname(LocalHostName, sizeof(LocalHostName));
- if ( (p = strchr(LocalHostName, '.')) ) {
- *p++ = '\0';
- }
-
logMessage(LOG_SYSLOG|LOG_INFO, "syslogd started: "
- "BusyBox v" BB_VER " (" BB_BT ") multi-call binary");
+ "BusyBox v" BB_VER " (" BB_BT ")");
while ((conn = accept(fd, (struct sockaddr *) &sunx,
close(fd);
}
+#ifdef BB_KLOGD
+
static void klogd_signal(int sig)
{
- //ksyslog(7, NULL, 0);
- //ksyslog(0, 0, 0);
- logMessage(LOG_SYSLOG|LOG_INFO, "Kernel log daemon terminating.");
+ ksyslog(7, NULL, 0);
+ ksyslog(0, 0, 0);
+ logMessage(LOG_SYSLOG|LOG_INFO, "Kernel log daemon exiting.");
exit( TRUE);
}
-
static void doKlogd(void)
{
int priority=LOG_INFO;
- struct stat sb;
char log_buffer[4096];
+ char *logp;
/* Set up sig handlers */
signal(SIGINT, klogd_signal);
signal(SIGTERM, klogd_signal);
signal(SIGHUP, klogd_signal);
logMessage(LOG_SYSLOG|LOG_INFO, "klogd started: "
- "BusyBox v" BB_VER " (" BB_BT ") multi-call binary");
-
- //ksyslog(1, NULL, 0);
- if ( ((stat(_PATH_KLOG, &sb) < 0) && (errno == ENOENT)) ||
- ( (kmsg = open(_PATH_KLOG, O_RDONLY)) < 0 ) ) {
- char message[80];
- snprintf(message, 79, "klogd: Cannot open %s, " \
- "%d - %s.\n", _PATH_KLOG, errno, strerror(errno));
- logMessage(LOG_SYSLOG|LOG_ERR, message);
- klogd_signal(0);
- }
+ "BusyBox v" BB_VER " (" BB_BT ")");
+
+ ksyslog(1, NULL, 0);
+
while (1) {
+ /* Use kernel syscalls */
memset(log_buffer, '\0', sizeof(log_buffer));
- if ( read(kmsg, log_buffer, sizeof(log_buffer)-1) < 0 ) {
- char message[80];
- if ( errno == EINTR )
- continue;
- snprintf(message, 79, "klogd: Cannot read proc file system: %d - %s.\n",
- errno, strerror(errno));
- logMessage(LOG_SYSLOG|LOG_ERR, message);
- klogd_signal(0);
- }
-#if 0
if ( ksyslog(2, log_buffer, sizeof(log_buffer)) < 0 ) {
char message[80];
if ( errno == EINTR )
logMessage(LOG_SYSLOG|LOG_ERR, message);
exit(1);
}
-#endif
- fprintf(stderr, "the kernel says '%s'\n", log_buffer);
+ logp=log_buffer;
if ( *log_buffer == '<' )
{
switch ( *(log_buffer+1) )
default:
priority = LOG_DEBUG;
}
- *log_buffer += 3;
+ logp+=3;
}
- logMessage(LOG_KERN|priority, log_buffer);
+ logMessage(LOG_KERN|priority, logp);
}
}
+#endif
extern int syslogd_main(int argc, char **argv)
{
int pid, klogd_pid;
int doFork = TRUE;
+#ifdef BB_KLOGD
+ int startKlogd = TRUE;
+#endif
+ char *p;
char **argv1=argv;
-
+
while (--argc > 0 && **(++argv1) == '-') {
while (*(++(*argv1))) {
switch (**argv1) {
case 'n':
doFork = FALSE;
break;
+#ifdef BB_KLOGD
+ case 'K':
+ startKlogd = FALSE;
+ break;
+#endif
case 'O':
if (--argc == 0) {
usage(syslogd_usage);
}
}
}
+
+ /* Store away localhost's name before the fork */
+ gethostname(LocalHostName, sizeof(LocalHostName));
+ if ( (p = strchr(LocalHostName, '.')) ) {
+ *p++ = '\0';
+ }
if (doFork == TRUE) {
pid = fork();
doSyslogd();
}
- /* Start klogd process */
- klogd_pid = fork();
- if (klogd_pid == 0 ) {
- strncpy(argv[0], "klogd", strlen(argv[0]));
- doKlogd();
+#ifdef BB_KLOGD
+ /* Start up the klogd process */
+ if (startKlogd == TRUE) {
+ klogd_pid = fork();
+ if (klogd_pid == 0 ) {
+ strncpy(argv[0], "klogd", strlen(argv[0]));
+ doKlogd();
+ }
}
+#endif
exit( TRUE);
}