From 09ac87736d1cba2bc599316653a53da297c14171 Mon Sep 17 00:00:00 2001
From: Albert S <mail@quitesimple.org>
Date: Sun, 19 Apr 2020 23:18:30 +0200
Subject: [PATCH] utils: localtime is not threadsafe, use localtime_r

---
 utils.cpp | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/utils.cpp b/utils.cpp
index 2397ded..163d149 100644
--- a/utils.cpp
+++ b/utils.cpp
@@ -161,13 +161,13 @@ std::string utils::regex_callback_replacer(std::regex regex, const std::string &
 
 std::string utils::toISODate(time_t t)
 {
-	struct tm *lt = localtime(&t);
-	if(lt == nullptr)
+	struct tm lt;
+	if(localtime_r(&t, &lt) == nullptr)
 	{
 		return {};
 	}
 	char result[20];
-	size_t x = strftime(result, sizeof(result), "%Y-%m-%d %H:%M:%S", lt);
+	size_t x = strftime(result, sizeof(result), "%Y-%m-%d %H:%M:%S", &lt);
 	if(x == 0)
 	{
 		return {};