From 6a867d33b5aa4ed67800cd64fe19d2902250bd96 Mon Sep 17 00:00:00 2001
From: katsu <katsu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Sun, 20 Jul 2003 02:06:15 +0000
Subject: * ext/zlib/zlib.c (gzfile_read_header): gz->z.input may be nil after
 finishing reading a gzip header.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@4106 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 ext/zlib/zlib.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'ext/zlib/zlib.c')

diff --git a/ext/zlib/zlib.c b/ext/zlib/zlib.c
index 24f226843f..e1aebe446f 100644
--- a/ext/zlib/zlib.c
+++ b/ext/zlib/zlib.c
@@ -1697,7 +1697,7 @@ gzfile_read_header(gz)
 	zstream_discard_input(&gz->z, len + 1);
     }
 
-    if (RSTRING(gz->z.input)->len > 0) {
+    if (gz->z.input != Qnil && RSTRING(gz->z.input)->len > 0) {
 	zstream_run(&gz->z, 0, 0, Z_SYNC_FLUSH);
     }
 }
-- 
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