From 5326c1d6879b987a9aa921ab49fda3421b54d18b Mon Sep 17 00:00:00 2001
From: Karl Heuer <kwzh@gnu.org>
Date: Sat, 14 Jun 1997 04:36:44 +0000
Subject: [PATCH] (readline): Terminate buffer properly when EOF seen. Test for
 valid pointer before dereferencing it.

---
 lib-src/b2m.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib-src/b2m.c b/lib-src/b2m.c
index 88d0acd5cd8..2eb6a0354b8 100644
--- a/lib-src/b2m.c
+++ b/lib-src/b2m.c
@@ -211,12 +211,13 @@ readline (linebuffer, stream)
 	}
       if (c == EOF)
 	{
+	  *p = '\0';
 	  chars_deleted = 0;
 	  break;
 	}
       if (c == '\n')
 	{
-	  if (p[-1] == '\r' && p > buffer)
+	  if (p > buffer && p[-1] == '\r')
 	    {
 	      *--p = '\0';
 	      chars_deleted = 2;
-- 
2.39.5