From 402ef86f4b94dd5b7ed80206f03010071e0e37d2 Mon Sep 17 00:00:00 2001
From: Steve Kemp <steve@steve.org.uk>
Date: Sun, 14 Apr 2024 17:37:02 +0300
Subject: [PATCH] Added error-check on terminal restoration

---
 cpm/cpm_syscalls.go | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/cpm/cpm_syscalls.go b/cpm/cpm_syscalls.go
index e2e7303..b06772d 100644
--- a/cpm/cpm_syscalls.go
+++ b/cpm/cpm_syscalls.go
@@ -36,7 +36,10 @@ func SysCallReadChar(cpm *CPM) error {
 	}
 
 	// restore the state of the terminal to avoid mixing RAW/Cooked
-	term.Restore(int(os.Stdin.Fd()), oldState)
+	err = term.Restore(int(os.Stdin.Fd()), oldState)
+	if err != nil {
+		return fmt.Errorf("error restoring terminal state %s", err)
+	}
 
 	// Return the character
 	cpm.CPU.States.AF.Hi = b[0]