xnu-517.tar.gz

[apple/xnu.git] / bsd / kern / uipc_usrreq.c

diff --git a/bsd/kern/uipc_usrreq.c b/bsd/kern/uipc_usrreq.c
index 905652beeb9f7f9373eb03008eea25d9c6767ed5..10688922f92a5b7e8d3a2387e6787a626655b618 100644 (file)
--- a/bsd/kern/uipc_usrreq.c
+++ b/bsd/kern/uipc_usrreq.c
@@ -3,19 +3,22 @@
  *
  * @APPLE_LICENSE_HEADER_START@
  * 
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License").  You may not use this file except in compliance with the
- * License.  Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
+ * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
  * 
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
+ * 
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
- * License for the specific language governing rights and limitations
- * under the License.
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
  * 
  * @APPLE_LICENSE_HEADER_END@
  */
@@ -660,6 +663,18 @@ unp_connect(so, nam, p)
                goto bad;
        }
        thread_funnel_switch(KERNEL_FUNNEL, NETWORK_FUNNEL);
+       
+       /*
+        * Check if socket was connected while we were trying to
+        * acquire the funnel.
+        * XXX - probably shouldn't return an error for SOCK_DGRAM
+        */
+       if ((so->so_state & SS_ISCONNECTED) != 0) {
+               error = EISCONN;
+               thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);
+               goto bad;
+       }
+       
        if (so->so_proto->pr_flags & PR_CONNREQUIRED) {
                if ((so2->so_options & SO_ACCEPTCONN) == 0 ||
                    (so3 = sonewconn(so2, 0)) == 0) {