From 5fae797e4191a970deade1e2a20cccd834823ca9 Mon Sep 17 00:00:00 2001
From: Patrick Pelissier <patrick.pelissier@gmail.com>
Date: Wed, 5 Jul 2017 23:31:33 +0200
Subject: [PATCH] Do not increase size in _fgets if we reach the EOF.

---
 m-string.h | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/m-string.h b/m-string.h
index 12781dc4..80bebb29 100644
--- a/m-string.h
+++ b/m-string.h
@@ -552,8 +552,11 @@ string_fgets(string_t v, FILE *f, string_fgets_t arg)
       }
       STRING_CONTRACT(v);
       return;
-    } else if (p == NULL)
+    } else if (p == NULL && !feof(f)) {
+      /* The string buffer is not big enough:
+         increase it and continue reading */
       stringi_fit2size (v, v->alloc + v->alloc/2);
+    }
   }
   STRING_CONTRACT (v);
 }