From c9f494a3dfba6b2edd2bab2d2f9e569eb8fba9e6 Mon Sep 17 00:00:00 2001
From: Olaf Seibert <rhialto@falu.nl>
Date: Wed, 22 Jul 2015 01:20:34 +0200
Subject: [PATCH] EOF on the prompt should not loop infinitely

---
 src/klh10.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/src/klh10.c b/src/klh10.c
index 4b68f3f..09e4d4a 100644
--- a/src/klh10.c
+++ b/src/klh10.c
@@ -1032,8 +1032,15 @@ cmdlsetup(struct cmd_s *cm)
 	fputs(cp, stdout);		/* Echo the input line */
     } else {
 	cp = fe_ctycmline(cm->cmd_inp, (int)cm->cmd_left-1);
-	if (cp == NULL)
-	    return NULL;
+	if (cp == NULL) {
+	    if (feof(stdin) || ferror(stdin)) {
+		cp = strncpy(cm->cmd_inp, "exit", (int)cm->cmd_left-1);
+		fprintf(stdout, "exit\n");
+		clearerr(stdin);
+	    } else {
+		return NULL;
+	    }
+	}
     }
 
     len = strlen(cp);