+/* vi: set sw=4 ts=4: */
/*
* Mini syslogd implementation for busybox
*
#define __LOG_FILE "/var/log/messages"
-static char* logFilePath = __LOG_FILE;
+static char *logFilePath = __LOG_FILE;
+
/* interval between marks in seconds */
-static int MarkInterval = 20*60;
+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"
+ "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"
+ "\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";
+ "\t-O\tSpecify an alternate log file. default=/var/log/messages\n";
/* print a message to the log file */
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);
+ 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 {
- fprintf(stderr, "Bummer, can't print: ");
- va_start(arguments, fmt);
- vfprintf(stderr, fmt, arguments);
- fflush(stderr);
- va_end(arguments);
+ /* 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)
+static void logMessage(int pri, char *msg)
{
- time_t now;
- char *timestamp;
- static char res[20];
- CODE *c_pri, *c_fac;
-
- 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);
+ time_t now;
+ char *timestamp;
+ static char res[20];
+ CODE *c_pri, *c_fac;
+
+ 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(LOG_SYSLOG|LOG_INFO, "System log daemon exiting.");
- unlink( _PATH_LOG);
- exit( TRUE);
+ logMessage(LOG_SYSLOG | LOG_INFO, "System log daemon exiting.");
+ unlink(_PATH_LOG);
+ exit(TRUE);
}
static void restart_signal(int sig)
{
- /* pretend to restart */
- logMessage(LOG_SYSLOG|LOG_INFO, "syslogd restarting");
+ /* pretend to restart */
+ logMessage(LOG_SYSLOG | LOG_INFO, "syslogd restarting");
}
static void domark(int sig)
{
- if (MarkInterval > 0) {
- logMessage(LOG_SYSLOG|LOG_INFO, "-- MARK --");
- alarm(MarkInterval);
- }
+ if (MarkInterval > 0) {
+ logMessage(LOG_SYSLOG | LOG_INFO, "-- MARK --");
+ alarm(MarkInterval);
+ }
}
static void doSyslogd(void)
{
- struct sockaddr_un sunx;
- int fd, conn;
- size_t addrLength;
- char buf[1024];
- char *q, *p = buf;
- int readSize;
-
- /* Set up sig handlers */
- signal(SIGINT, quit_signal);
- signal(SIGTERM, quit_signal);
- signal(SIGQUIT, quit_signal);
- signal(SIGHUP, restart_signal);
- signal(SIGALRM, domark);
- alarm(MarkInterval);
-
- /* Remove any preexisting socket/file */
- 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(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)) ||
- (listen(fd, 5)) )
- {
- perror("Could not connect to socket " _PATH_LOG);
- exit( FALSE);
- }
-
- umask(0);
- if (chmod(_PATH_LOG, 0666) < 0) {
- perror("Could not set permission on " _PATH_LOG);
- exit (FALSE);
- }
-
- logMessage(LOG_SYSLOG|LOG_INFO, "syslogd started: "
- "BusyBox v" BB_VER " (" BB_BT ")");
-
-
- while ((conn = accept(fd, (struct sockaddr *) &sunx,
- &addrLength)) >= 0)
- {
- while ((readSize=read(conn, buf, sizeof(buf))) > 0)
- {
- char line[1025];
- 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';
+ struct sockaddr_un sunx;
+ int fd, conn;
+ size_t addrLength;
+ char buf[1024];
+ char *q, *p = buf;
+ int readSize;
+
+ /* Set up sig handlers */
+ signal(SIGINT, quit_signal);
+ signal(SIGTERM, quit_signal);
+ signal(SIGQUIT, quit_signal);
+ signal(SIGHUP, restart_signal);
+ signal(SIGALRM, domark);
+ alarm(MarkInterval);
+
+ /* Remove any preexisting socket/file */
+ 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(AF_UNIX, SOCK_STREAM, 0)) < 0) {
+ perror("Couldn't obtain descriptor for socket " _PATH_LOG);
+ exit(FALSE);
+ }
- /* Now log it */
- logMessage( pri, line);
+ addrLength = sizeof(sunx.sun_family) + strlen(sunx.sun_path);
+ if ((bind(fd, (struct sockaddr *) &sunx, addrLength)) ||
+ (listen(fd, 5))) {
+ perror("Could not connect to socket " _PATH_LOG);
+ exit(FALSE);
}
- close(conn);
- }
- close(fd);
+ umask(0);
+ if (chmod(_PATH_LOG, 0666) < 0) {
+ perror("Could not set permission on " _PATH_LOG);
+ exit(FALSE);
+ }
+
+ logMessage(LOG_SYSLOG | LOG_INFO, "syslogd started: "
+ "BusyBox v" BB_VER " (" BB_BT ")");
+
+
+ while ((conn = accept(fd, (struct sockaddr *) &sunx,
+ &addrLength)) >= 0) {
+ while ((readSize = read(conn, buf, sizeof(buf))) > 0) {
+ char line[1025];
+ 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(conn);
+ }
+
+ 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 exiting.");
- exit( TRUE);
+ 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;
- char log_buffer[4096];
- char *logp;
-
- /* 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 ")");
-
- 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);
+ 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, klogd_signal);
+ logMessage(LOG_SYSLOG | LOG_INFO, "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);
}
- 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);
- }
}
extern int syslogd_main(int argc, char **argv)
{
- int pid, klogd_pid;
- int doFork = TRUE;
+ int pid, klogd_pid;
+ int doFork = TRUE;
+
#ifdef BB_KLOGD
- int startKlogd = TRUE;
+ 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;
+ 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;
+ case 'K':
+ startKlogd = FALSE;
+ break;
#endif
- case 'O':
- if (--argc == 0) {
- usage(syslogd_usage);
+ case 'O':
+ if (--argc == 0) {
+ usage(syslogd_usage);
+ }
+ logFilePath = *(++argv1);
+ stopDoingThat = TRUE;
+ break;
+ default:
+ 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';
- }
-
- if (doFork == TRUE) {
- pid = fork();
- if ( pid < 0 )
- exit( pid);
- else if ( pid == 0 ) {
- strncpy(argv[0], "syslogd",strlen(argv[0]));
- doSyslogd();
+
+ /* Store away localhost's name before the fork */
+ gethostname(LocalHostName, sizeof(LocalHostName));
+ if ((p = strchr(LocalHostName, '.'))) {
+ *p++ = '\0';
+ }
+
+ if (doFork == TRUE) {
+ pid = fork();
+ if (pid < 0)
+ exit(pid);
+ else if (pid == 0) {
+ strncpy(argv[0], "syslogd", strlen(argv[0]));
+ doSyslogd();
+ }
+ } else {
+ doSyslogd();
}
- } else {
- doSyslogd();
- }
#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();
+ /* 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);
+ exit(TRUE);
}
-
-
projects / oweals / busybox.git / blobdiff