Hide non-standard syslog API.

The definitions are still available on LP32 for binary compatibility, but
they're gone on LP64, and the declarations are gone everywhere.

We should probably just make syslog(3) log to the regular Android log,
but that's a job for another day.

Bug: 11156955
Change-Id: I74a98c92f7922ea733549ec6d37c6fa8b7014860
diff --git a/libc/include/syslog.h b/libc/include/syslog.h
index 4677c14..a52e811 100644
--- a/libc/include/syslog.h
+++ b/libc/include/syslog.h
@@ -25,6 +25,7 @@
  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  */
+
 #ifndef _SYSLOG_H
 #define _SYSLOG_H
 
@@ -34,7 +35,6 @@
 
 __BEGIN_DECLS
 
-/* Alert levels */
 #define LOG_EMERG	0
 #define LOG_ALERT	1
 #define LOG_CRIT	2
@@ -47,8 +47,6 @@
 #define LOG_PRIMASK	7
 #define LOG_PRI(x)	((x) & LOG_PRIMASK)
 
-
-/* Facilities; not actually used */
 #define LOG_KERN	0000
 #define LOG_USER	0010
 #define LOG_MAIL	0020
@@ -73,30 +71,15 @@
 #define LOG_FACMASK	01770
 #define LOG_FAC(x)	(((x) >> 3) & (LOG_FACMASK >> 3))
 
-#define	LOG_MASK(pri)	(1 << (pri))		/* mask for one priority */
-#define	LOG_UPTO(pri)	((1 << ((pri)+1)) - 1)	/* all priorities through pri */
+#define LOG_MASK(pri) (1 << (pri))
+#define LOG_UPTO(pri) ((1 << ((pri)+1)) - 1)
 
-/* openlog() flags; only LOG_PID and LOG_PERROR supported */
-#define        LOG_PID         0x01    /* include pid with message */
-#define        LOG_CONS        0x02    /* write to console on logger error */
-#define        LOG_ODELAY      0x04    /* delay connection until syslog() */
-#define        LOG_NDELAY      0x08    /* open connection immediately */
-#define        LOG_NOWAIT      0x10    /* wait for child processes (unused on linux) */
-#define        LOG_PERROR      0x20    /* additional logging to stderr */
-
-/* BIONIC: the following definitions are from OpenBSD's sys/syslog.h
- */
-struct syslog_data {
-	int	log_file;
-        int	connected;
-        int	opened;
-        int	log_stat;
-        const char 	*log_tag;
-        int 	log_fac;
-        int 	log_mask;
-};
-
-#define SYSLOG_DATA_INIT {-1, 0, 0, 0, (const char *)0, LOG_USER, 0xff}
+#define LOG_PID    0x01    /* include pid with message */
+#define LOG_CONS   0x02    /* write to console on logger error */
+#define LOG_ODELAY 0x04    /* delay connection until syslog() */
+#define LOG_NDELAY 0x08    /* open connection immediately */
+#define LOG_NOWAIT 0x10    /* wait for child processes (unused on linux) */
+#define LOG_PERROR 0x20    /* additional logging to stderr */
 
 #define _PATH_LOG  "/dev/syslog"
 
@@ -105,11 +88,6 @@
 extern int	setlogmask(int);
 extern void	syslog(int, const char *, ...) __printflike(2, 3);
 extern void	vsyslog(int, const char *, va_list) __printflike(2, 0);
-extern void	closelog_r(struct syslog_data *);
-extern void	openlog_r(const char *, int, int, struct syslog_data *);
-extern int	setlogmask_r(int, struct syslog_data *);
-extern void	syslog_r(int, struct syslog_data *, const char *, ...) __printflike(3, 4);
-extern void	vsyslog_r(int, struct syslog_data *, const char *, va_list) __printflike(3, 0);
 
 __END_DECLS