From dde62bcd2efbb3825d982326896ab774e73e4218 Mon Sep 17 00:00:00 2001
From: matz <matz@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Mon, 17 Jan 2000 08:37:53 +0000
Subject: 2000-01-17

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@606 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 ext/socket/socket.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

(limited to 'ext/socket')

diff --git a/ext/socket/socket.c b/ext/socket/socket.c
index 3605e991f0..37094026e4 100644
--- a/ext/socket/socket.c
+++ b/ext/socket/socket.c
@@ -373,10 +373,14 @@ s_recv(sock, argc, argv, from)
     if (flg == Qnil) flags = 0;
     else             flags = NUM2INT(flg);
 
-    str = rb_str_new(0, NUM2INT(len));
-
     GetOpenFile(sock, fptr);
+    if (rb_read_pending(fptr->f)) {
+	rb_raise(rb_eIOError, "recv for buffered IO");
+    }
     fd = fileno(fptr->f);
+
+    str = rb_str_new(0, NUM2INT(len));
+
     rb_thread_wait_fd(fd);
     TRAP_BEG;
   retry:
-- 
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