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This commit is contained in:
Eric Andersen
1999-12-03 09:19:54 +00:00
parent 77619b9dda
commit b186d980d6
18 changed files with 426 additions and 58 deletions
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125
syslogd.c
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@@ -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);
}