upstream commit

Add monotime_ts and monotime_tv that return monotonic
timespec and timeval respectively.  Replace calls to gettimeofday() in packet
timing with monotime_tv so that the callers will work over a clock step.
Should prevent integer overflow during clock steps reported by wangle6 at
huawei.com. "I like" markus@

OpenBSD-Commit-ID: 74d684264814ff806f197948b87aa732cb1b0b8a
diff --git a/misc.h b/misc.h
index 5ad30ce..4fa029a 100644
--- a/misc.h
+++ b/misc.h
@@ -1,4 +1,4 @@
-/* $OpenBSD: misc.h,v 1.67 2017/10/25 00:17:08 djm Exp $ */
+/* $OpenBSD: misc.h,v 1.68 2017/11/25 06:46:22 dtucker Exp $ */
 
 /*
  * Author: Tatu Ylonen <ylo@cs.hut.fi>
@@ -67,6 +67,8 @@
 void	 sanitise_stdfd(void);
 void	 ms_subtract_diff(struct timeval *, int *);
 void	 ms_to_timeval(struct timeval *, int);
+void	 monotime_ts(struct timespec *);
+void	 monotime_tv(struct timeval *);
 time_t	 monotime(void);
 double	 monotime_double(void);
 void	 lowercase(char *s);