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Handle race where the server closed the socket between us 'connecting' and

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sending data.
This commit is contained in:
christos 2014-06-08 02:52:50 +00:00
parent ac4742896b
commit e703946d2e
1 changed files with 5 additions and 2 deletions
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7
sys/kern/uipc_usrreq.c
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@ -1,4 +1,4 @@
/* $NetBSD: uipc_usrreq.c,v 1.152 2014/05/19 02:51:24 rmind Exp $ */
/* $NetBSD: uipc_usrreq.c,v 1.153 2014/06/08 02:52:50 christos Exp $ */
/*-
* Copyright (c) 1998, 2000, 2004, 2008, 2009 The NetBSD Foundation, Inc.
@ -96,7 +96,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: uipc_usrreq.c,v 1.152 2014/05/19 02:51:24 rmind Exp $");
__KERNEL_RCSID(0, "$NetBSD: uipc_usrreq.c,v 1.153 2014/06/08 02:52:50 christos Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@ -303,6 +303,9 @@ unp_output(struct mbuf *m, struct mbuf *control, struct unpcb *unp,
struct socket *so2;
const struct sockaddr_un *sun;
/* XXX: server side closed the socket */
if (unp->unp_conn == NULL)
return ECONNREFUSED;
so2 = unp->unp_conn->unp_socket;
KASSERT(solocked(so2));