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Prevent listen() on a socket that is already connected - we already prevent

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connect() on a listening socket.
This commit is contained in:
ad 2008-03-28 12:12:20 +00:00
parent c65c7603a1
commit c2f3592995
1 changed files with 5 additions and 2 deletions
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7
sys/kern/uipc_socket.c
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@ -1,4 +1,4 @@
/* $NetBSD: uipc_socket.c,v 1.157 2008/03/27 19:06:52 ad Exp $ */
/* $NetBSD: uipc_socket.c,v 1.158 2008/03/28 12:12:20 ad Exp $ */
/*-
* Copyright (c) 2002, 2007, 2008 The NetBSD Foundation, Inc.
@ -68,7 +68,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: uipc_socket.c,v 1.157 2008/03/27 19:06:52 ad Exp $");
__KERNEL_RCSID(0, "$NetBSD: uipc_socket.c,v 1.158 2008/03/28 12:12:20 ad Exp $");
#include "opt_sock_counters.h"
#include "opt_sosend_loan.h"
@ -565,6 +565,9 @@ solisten(struct socket *so, int backlog, struct lwp *l)
int s, error;
s = splsoftnet();
if ((so->so_state & (SS_ISCONNECTED | SS_ISCONNECTING |
SS_ISDISCONNECTING)) != 0)
return (EOPNOTSUPP);
error = (*so->so_proto->pr_usrreq)(so, PRU_LISTEN, NULL,
NULL, NULL, l);
if (error != 0) {