From 64b5aa53e297533724d4668c8b75ba245eb08ae1 Mon Sep 17 00:00:00 2001
From: akr <akr@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Fri, 6 Aug 2004 16:01:02 +0000
Subject: * ext/zlib/zlib.c: Zlib::GzipReader#read(0) returns "" instead of
 nil.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@6739 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 ext/zlib/zlib.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

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

diff --git a/ext/zlib/zlib.c b/ext/zlib/zlib.c
index 38ab667cd4..0e9d9a679a 100644
--- a/ext/zlib/zlib.c
+++ b/ext/zlib/zlib.c
@@ -2072,7 +2072,10 @@ gzfile_read(gz, len)
 {
     VALUE dst;
 
-    if (len <= 0) return Qnil;
+    if (len < 0)
+        rb_raise(rb_eArgError, "negative length %d given", len);
+    if (len == 0)
+	return rb_str_new(0, 0);
     while (!ZSTREAM_IS_FINISHED(&gz->z) && gz->z.buf_filled < len) {
 	gzfile_read_more(gz);
     }
-- 
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