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when the peer is disconnected before accept(2) is issued,

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do not return junk data in mbuf (= sockaddr on accept(2)'s 2nd arg).
set the length zero.

behavior checked with bsdi and freebsd.
partial solution to PR 12027 and 10698 (need more investigation).
This commit is contained in:
itojun 2001-01-22 18:14:11 +00:00
parent 64a16b4f7e
commit 6e24d735f0
1 changed files with 4 additions and 3 deletions
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7
sys/kern/uipc_socket.c
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@ -1,4 +1,4 @@
/* $NetBSD: uipc_socket.c,v 1.51 2000/12/10 23:16:28 fvdl Exp $ */
/* $NetBSD: uipc_socket.c,v 1.52 2001/01/22 18:14:11 itojun Exp $ */
/*
* Copyright (c) 1982, 1986, 1988, 1990, 1993
@ -262,7 +262,7 @@ soaccept(so, nam)
struct mbuf *nam;
{
int s = splsoftnet();
int error;
int error = 0;
if ((so->so_state & SS_NOFDREF) == 0)
panic("soaccept: !NOFDREF");
@ -271,7 +271,8 @@ soaccept(so, nam)
error = (*so->so_proto->pr_usrreq)(so, PRU_ACCEPT,
(struct mbuf *)0, nam, (struct mbuf *)0, (struct proc *)0);
else
error = 0;
nam->m_len = 0;
splx(s);
return (error);
}