From 6c1720e328d2ed6d5e9ac0a6a84f57ac2d360d84 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sigrid=20Solveig=20Hafl=C3=ADnud=C3=B3ttir?=
 <ftrvxmtrx@gmail.com>
Date: Wed, 17 Nov 2021 14:14:38 +0100
Subject: [PATCH] datetime: don't crash if localtime failed

---
 src/uxnemu.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/uxnemu.c b/src/uxnemu.c
index 9bd8160..b56b975 100644
--- a/src/uxnemu.c
+++ b/src/uxnemu.c
@@ -384,7 +384,10 @@ static Uint8
 datetime_dei(Device *d, Uint8 port)
 {
 	time_t seconds = time(NULL);
+	struct tm zt = {0};
 	struct tm *t = localtime(&seconds);
+	if(t == NULL)
+		t = &zt;
 	switch(port) {
 	case 0x0: return (t->tm_year + 1900) >> 8;
 	case 0x1: return (t->tm_year + 1900);