linux-kernel - Re: [PATCH,TRIVIAL] AF_UNIX, accept() and addrlen

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Date:	Sat, 26 Apr 2008 02:44:45 +0100
From:	Samuel Thibault <samuel.thibault@...-lyon.org>
To:	Michael Kerrisk <mtk.manpages@...il.com>
Cc:	Michael Kerrisk <mtk.manpages@...glemail.com>,
	Andi Kleen <andi@...stfloor.org>,
	David Miller <davem@...emloft.net>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH,TRIVIAL] AF_UNIX, accept() and addrlen

Michael Kerrisk, le Thu 24 Apr 2008 10:31:15 +0200, a écrit :
> >  > and I see that in net/unix/af_unix.c::unix_getname() there is:
> >  >
> >
> > >                 *uaddr_len = sizeof(short);
> >
> >  I'd say that code should be fixed into using sa_family_t.
> 
> Is there a patch for this?

Here it is



AF_UNIX: make unix_getname use sizeof(sunaddr->sun_family) instead of
sizeof(short).

Signed-off-by: Samuel Thibault <samuel.thibault@...-lyon.org>

--- linux/net/unix/af_unix.c.orig	2008-04-26 02:41:45.000000000 +0100
+++ linux/net/unix/af_unix.c	2008-04-26 02:42:07.000000000 +0100
@@ -1256,7 +1256,7 @@ static int unix_getname(struct socket *s
 	if (!u->addr) {
 		sunaddr->sun_family = AF_UNIX;
 		sunaddr->sun_path[0] = 0;
-		*uaddr_len = sizeof(short);
+		*uaddr_len = sizeof(sunaddr->sun_family);
 	} else {
 		struct unix_address *addr = u->addr;
 
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