From f409fcf8f113d31f4279b52d212cef7d518dacd4 Mon Sep 17 00:00:00 2001
From: Daniel Rocha <daniel@rocha.io>
Date: Fri, 8 Mar 2019 13:04:52 +0100
Subject: [PATCH] Fail if server time changes

---
 htp.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/htp.go b/htp.go
index 4169ae8..33d8bbc 100644
--- a/htp.go
+++ b/htp.go
@@ -64,6 +64,10 @@ func main() {
 
 		lo = max(lo, t0-t2-Second)
 		hi = min(hi, t1-t2)
+		if hi < lo {
+			logger.Fatal("Server time changed during syncronization")
+		}
+
 		offset = (hi + lo) / 2
 		if !*quiet {
 			margin := (hi - lo) / 2