xnu-792.13.8.tar.gz

[apple/xnu.git] / bsd / netat / at_pcb.c

diff --git a/bsd/netat/at_pcb.c b/bsd/netat/at_pcb.c
index 7c120650e15a710c7c92a25d33afbdb82427c4ca..8b98ebbafbab0a4b99195460adb13bbe2c18e14a 100644 (file)
--- a/bsd/netat/at_pcb.c
+++ b/bsd/netat/at_pcb.c
@@ -1,23 +1,31 @@
 /*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
  *
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_LICENSE_OSREFERENCE_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.
- * 
- * This 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.
- * 
- * @APPLE_LICENSE_HEADER_END@
+ * 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.  The rights granted to you under the 
+ * License may not be used to create, or enable the creation or 
+ * redistribution of, unlawful or unlicensed copies of an Apple operating 
+ * system, or to circumvent, violate, or enable the circumvention or 
+ * violation of, any terms of an Apple operating system software license 
+ * agreement.
+ *
+ * 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, QUIET ENJOYMENT OR NON-INFRINGEMENT. 
+ * Please see the License for the specific language governing rights and 
+ * limitations under the License.
+ *
+ * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
  */
 
 /*
@@ -130,9 +138,11 @@ int at_pcballoc(so, head)
 
        pcb->atpcb_head = head;
        pcb->atpcb_socket = so;
+       atalk_lock();   /* makes sure the list is locked while inserting atpcb */
        if (head)
            insque((queue_t)pcb, (queue_t)head);
        so->so_pcb = (caddr_t)pcb;
+       atalk_unlock();
 
        return (0);
 }
@@ -149,9 +159,10 @@ int at_pcbdetach(pcb)
        }
 
        so->so_pcb = 0;
+       so->so_flags |= SOF_PCBCLEARING;
        if ((pcb->atpcb_next) && (pcb->atpcb_prev))
            remque((queue_t)pcb);
-       zfree(atpcb_zone, (vm_offset_t)pcb);
+       zfree(atpcb_zone, pcb);
        sofree(so);
        return(0);
 }
@@ -180,7 +191,6 @@ int at_pcbbind(pcb, nam)
        register struct atpcb *pcb;
        struct sockaddr *nam;
 {
-       register struct socket *so = pcb->atpcb_socket;
        register struct sockaddr_at *local = (struct sockaddr_at *) nam;
        u_char ddpsock = local->sat_port;