1 files changed, 21 insertions, 1 deletions

diff --git a/misc.c b/misc.c
index b4fe489af..01986e8c1 100644
--- a/misc.c
+++ b/misc.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: misc.c,v 1.67 2008/01/01 08:47:04 dtucker Exp $ */
+/* $OpenBSD: misc.c,v 1.68 2008/06/12 20:38:28 dtucker Exp $ */
 /*
  * Copyright (c) 2000 Markus Friedl.  All rights reserved.
  * Copyright (c) 2005,2006 Damien Miller.  All rights reserved.
@@ -832,3 +832,23 @@ put_u16(void *vp, u_int16_t v)
         p[0] = (u_char)(v >> 8) & 0xff;
         p[1] = (u_char)v & 0xff;
 }
+
+void
+ms_subtract_diff(struct timeval *start, int *ms)
+{
+        struct timeval diff, finish;
+
+        gettimeofday(&finish, NULL);
+        timersub(&finish, start, &diff);        
+        *ms -= (diff.tv_sec * 1000) + (diff.tv_usec / 1000);
+}
+
+void
+ms_to_timeval(struct timeval *tv, int ms)
+{
+        if (ms < 0)
+                ms = 0;
+        tv->tv_sec = ms / 1000;
+        tv->tv_usec = (ms % 1000) * 1000;
+}
+