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authorEric Andersen1999-12-03 09:19:54 +0000
committerEric Andersen1999-12-03 09:19:54 +0000
commitb186d980d6060195d01048bb3a083739137b6c21 (patch)
treef64b2d63850be12ce3081b2000784aa57ac29656 /syslogd.c
parent77619b9dda2b0550fea519fba05f7d9790ef7eaf (diff)
downloadbusybox-b186d980d6060195d01048bb3a083739137b6c21.zip
busybox-b186d980d6060195d01048bb3a083739137b6c21.tar.gz
Stuf
Diffstat (limited to 'syslogd.c')
-rw-r--r--syslogd.c125
1 files changed, 115 insertions, 10 deletions
diff --git a/syslogd.c b/syslogd.c
index 736adf7..3c7b017 100644
--- a/syslogd.c
+++ b/syslogd.c
@@ -32,6 +32,12 @@
#include <signal.h>
#include <ctype.h>
#include <netdb.h>
+#include <sys/klog.h>
+#include <errno.h>
+#include <paths.h>
+
+#define ksyslog klogctl
+extern int ksyslog(int type, char *buf, int len);
/* SYSLOG_NAMES defined to pull some extra junk from syslog.h */
@@ -40,8 +46,6 @@
/* Path for the file where all log messages are written */
#define __LOG_FILE "/var/log/messages"
-/* Path to the current console device */
-#define __DEV_CONSOLE "/dev/console"
static char* logFilePath = __LOG_FILE;
@@ -58,7 +62,7 @@ static const char syslogd_usage[] =
"\t-n\tDo not fork into the background (for when run by init)\n"
"\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)
@@ -92,7 +96,7 @@ static void message(char *fmt, ...)
close(fd);
} else {
/* Always send console messages to /dev/console so people will see them. */
- if ((fd = device_open(__DEV_CONSOLE, O_WRONLY|O_NOCTTY|O_NONBLOCK)) >= 0) {
+ if ((fd = device_open(_PATH_CONSOLE, O_WRONLY|O_NOCTTY|O_NONBLOCK)) >= 0) {
va_start(arguments, fmt);
vdprintf(fd, fmt, arguments);
va_end(arguments);
@@ -250,20 +254,112 @@ static void doSyslogd(void)
close(fd);
}
+static void klogd_signal(int sig)
+{
+ //ksyslog(7, NULL, 0);
+ //ksyslog(0, 0, 0);
+ logMessage(LOG_SYSLOG|LOG_INFO, "Kernel log daemon terminating.");
+ exit( TRUE);
+}
+
+
+static void doKlogd(void)
+{
+ int priority=LOG_INFO;
+ struct stat sb;
+ char log_buffer[4096];
+
+ /* Set up sig handlers */
+ signal(SIGINT, klogd_signal);
+ signal(SIGKILL, 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);
+ }
+ while (1) {
+ 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 )
+ continue;
+ snprintf(message, 79, "klogd: Error return from sys_sycall: " \
+ "%d - %s.\n", errno, strerror(errno));
+ logMessage(LOG_SYSLOG|LOG_ERR, message);
+ exit(1);
+ }
+#endif
+ fprintf(stderr, "the kernel says '%s'\n", 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;
+ }
+ *log_buffer += 3;
+ }
+ logMessage(LOG_KERN|priority, log_buffer);
+ }
+
+}
+
extern int syslogd_main(int argc, char **argv)
{
- int pid;
+ int pid, klogd_pid;
int doFork = TRUE;
+ char **argv1=argv;
- while (--argc > 0 && **(++argv) == '-') {
- while (*(++(*argv))) {
- switch (**argv) {
+ while (--argc > 0 && **(++argv1) == '-') {
+ while (*(++(*argv1))) {
+ switch (**argv1) {
case 'm':
if (--argc == 0) {
usage(syslogd_usage);
}
- MarkInterval = atoi(*(++argv))*60;
+ MarkInterval = atoi(*(++argv1))*60;
break;
case 'n':
doFork = FALSE;
@@ -272,7 +368,7 @@ extern int syslogd_main(int argc, char **argv)
if (--argc == 0) {
usage(syslogd_usage);
}
- logFilePath = *(++argv);
+ logFilePath = *(++argv1);
break;
default:
usage(syslogd_usage);
@@ -285,11 +381,20 @@ extern int syslogd_main(int argc, char **argv)
if ( pid < 0 )
exit( pid);
else if ( pid == 0 ) {
+ strncpy(argv[0], "syslogd",strlen(argv[0]));
doSyslogd();
}
} else {
doSyslogd();
}
+
+ /* Start klogd process */
+ klogd_pid = fork();
+ if (klogd_pid == 0 ) {
+ strncpy(argv[0], "klogd", strlen(argv[0]));
+ doKlogd();
+ }
+
exit( TRUE);
}