X-Git-Url: https://git.distorted.org.uk/u/mdw/putty/blobdiff_plain/f42faba9ff09df066a6bfce4e179d7566048395a..d719927eb175a73b13a7015498e9757010344bf5:/windows/winplink.c

diff --git a/windows/winplink.c b/windows/winplink.c
index 58063352..7ec98e7f 100644
--- a/windows/winplink.c
+++ b/windows/winplink.c
@@ -289,7 +289,7 @@ int main(int argc, char **argv)
     int errors;
     int got_host = FALSE;
     int use_subsystem = 0;
-    long now, next;
+    unsigned long now, next, then;
 
     sklist = NULL;
     skcount = sksize = 0;
@@ -634,8 +634,12 @@ int main(int argc, char **argv)
 	}
 
 	if (run_timers(now, &next)) {
-	    ticks = next - GETTICKCOUNT();
-	    if (ticks < 0) ticks = 0;  /* just in case */
+	then = now;
+	now = GETTICKCOUNT();
+	if (now - then > next - then)
+	    ticks = 0;
+	else
+	    ticks = next - now;
 	} else {
 	    ticks = INFINITE;
 	}