From c11d6f13ae2f83702f7ed8a26618eb378918c881 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Martin=20v=2E=20L=C3=B6wis?= <martin@v.loewis.de>
Date: Wed, 25 Aug 2004 10:52:58 +0000
Subject: [PATCH] Patch #1014992: Never return more than a line from readline.
 Will backport to 2.3.

---
 Lib/tarfile.py | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/Lib/tarfile.py b/Lib/tarfile.py
index 2d5bf642aef..06d859087bd 100644
--- a/Lib/tarfile.py
+++ b/Lib/tarfile.py
@@ -509,14 +509,12 @@ class ExFileObject(object):
             nl = min(nl, size)
         else:
             size -= len(self.linebuffer)
-            while nl < 0:
+            while (nl < 0 and size > 0):
                 buf = self.read(min(size, 100))
                 if not buf:
                     break
                 self.linebuffer += buf
                 size -= len(buf)
-                if size <= 0:
-                    break
                 nl = self.linebuffer.find("\n")
             if nl == -1:
                 s = self.linebuffer