From 3e3308d4e3a9f46c60d2eaa99361233c999dab27 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marc=20Andr=C3=A9=20Tanner?= <mat@brain-dump.org>
Date: Sat, 17 Mar 2018 10:38:21 +0100
Subject: [PATCH] Only manipulate output terminal state if it is a terminal

---
 client.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/client.c b/client.c
index 6cf70c7..0e6f7a1 100644
--- a/client.c
+++ b/client.c
@@ -22,8 +22,9 @@ static bool client_recv_packet(Packet *pkt) {
 }
 
 static void client_restore_terminal(void) {
-	if (has_term)
-		tcsetattr(STDIN_FILENO, TCSAFLUSH, &orig_term);
+	if (!has_term)
+		return;
+	tcsetattr(STDIN_FILENO, TCSAFLUSH, &orig_term);
 	if (alternate_buffer) {
 		printf("\033[?25h\033[?1049l");
 		fflush(stdout);
@@ -32,6 +33,8 @@ static void client_restore_terminal(void) {
 }
 
 static void client_setup_terminal(void) {
+	if (!has_term)
+		return;
 	atexit(client_restore_terminal);
 
 	cur_term = orig_term;