From 0d54c5d23257f7c7e36ad01b740aeb2bae18fba7 Mon Sep 17 00:00:00 2001
From: IWATSUKI Hiroyuki <don@na.rim.or.jp>
Date: Fri, 5 May 2023 21:50:07 +0900
Subject: [PATCH] =?UTF-8?q?^D=E3=81=A7=E3=83=87=E3=83=90=E3=83=83=E3=82=AC?=
 =?UTF-8?q?=E3=82=92=E6=8A=9C=E3=81=91=E3=82=89=E3=82=8C=E3=82=8B=E3=82=88?=
 =?UTF-8?q?=E3=81=86=E3=81=AB=E3=81=97=E3=81=BE=E3=81=97=E3=81=9F=E3=80=82?=
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---
 src/debugger.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/src/debugger.c b/src/debugger.c
index 52decdf..ea8450f 100644
--- a/src/debugger.c
+++ b/src/debugger.c
@@ -133,7 +133,15 @@ RUN68_COMMAND debugger(BOOL running)
         char *argv[MAX_LINE];
         int argc;
         fprintf(stderr, "%s", PROMPT);
-        fgets(line, MAX_LINE, stdin);
+        if (fgets(line, MAX_LINE, stdin) == NULL)
+        {
+            if (feof(stdin) || ferror(stdin))
+            {
+                fputs("quit\n", stderr);
+                cmd = RUN68_COMMAND_QUIT;
+                goto EndOfLoop;
+            }
+        }
         cmd = analyze(line, &argc, argv);
         if (argc == 0)
         {