From 95fe4ba3e28e9d2b479ee416ea5fcd7be973347b Mon Sep 17 00:00:00 2001
From: arvidn <arvid@libtorrent.org>
Date: Tue, 17 Mar 2020 10:53:47 +0100
Subject: [PATCH] improve portmap logging

---
 src/alert.cpp  | 2 +-
 src/natpmp.cpp | 4 +++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/alert.cpp b/src/alert.cpp
index f20dde260..9f8ed8a93 100644
--- a/src/alert.cpp
+++ b/src/alert.cpp
@@ -1146,7 +1146,7 @@ namespace {
 
 	std::string portmap_log_alert::message() const
 	{
-		char ret[600];
+		char ret[1024];
 		std::snprintf(ret, sizeof(ret), "%s: %s"
 			, nat_type_str[static_cast<int>(map_transport)]
 			, log_message());
diff --git a/src/natpmp.cpp b/src/natpmp.cpp
index da29a6e84..fd6760a52 100644
--- a/src/natpmp.cpp
+++ b/src/natpmp.cpp
@@ -285,7 +285,9 @@ void natpmp::mapping_log(char const* op, mapping_t const& m) const
 			, m.external_port
 			, m.local_port
 			, to_string(m.act)
-			, total_seconds(m.expires - aux::time_now()));
+			, (m.expires.time_since_epoch() != seconds(0))
+				? total_seconds(m.expires - aux::time_now())
+				: std::int64_t(0));
 	}
 }