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Date: Wed, 20 Dec 2000 00:50:20 +0200
From: Juha-Matti Liukkonen <jml@cubical.fi>
Organization: Cubical Solutions Ltd
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To: a.schulz@smf.de
Cc: freebsd-isdn@freebsd.org
Subject: Re: tun bad file descriptor
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Hi,

ppp in 4.x apparently does a close(2) after opening the tun device;
i4brunppp starts up with only file descriptors 0 and 1 open (to the rbch
device) -> tun gets opened as 2 -> tun gets closed -> later use results
in EBADF. A quick fix to i4brunppp.c makes the thing work (I know, this
is ugly, but I needed it up quick...):

--- i4brunppp.c-orig    Wed Dec 20 00:47:32 2000
+++ i4brunppp.c Wed Dec 20 00:48:06 2000
@@ -164,6 +164,7 @@
        i = getdtablesize();
 
        for(;i >= 0; i--)
+           if (i != 2)
                close(i);
 
        /* fiddle a terminating zero after the rbch unit number */

Cheers,
	- Juha

On Monday, 18 December, Andreas Schultz wrote:
> Hello,
> 
> I try to make a dialin-server for Windows Clients with i4b userland-ppp. =
> The FreeBSD Version is 4.2 and i4b is Version 00.96.00. When I try to =
> call in, the Call is answered and i4brunppp is started, but no =
> ppp-Handshake is established, because of a bad file descriptor. (see =
> /var/log/messages)
> 
> Someone Ideas ?
> 
> Best Regards
> 
> A. Schulz

--
Juha-Matti Liukkonen, Cubical Solutions Ltd
Phone: +358(0)405280142
Email: jml@cubical.fi


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