From owner-freebsd-multimedia  Sat Mar 21 18:26:26 1998
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	Sun, 22 Mar 1998 13:21:39 +1100
Date: Sun, 22 Mar 1998 13:21:39 +1100
From: Bruce Evans <bde@zeta.org.au>
Message-Id: <199803220221.NAA18775@godzilla.zeta.org.au>
To: jonny@coppe.ufrj.br, multimedia@FreeBSD.ORG, rhh@ct.picker.com
Subject: Re: Fxtv vs Stable
Cc: stable@FreeBSD.ORG
Sender: owner-freebsd-multimedia@FreeBSD.ORG
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X-Loop: FreeBSD.org

>I'm not running stable, but if you want to verify this, make these two
>tweaks to tvcapture.c and see if Fxtv works again when not running as root:
>
>1) Comment out the "|PROT_WRITE" in:
>
>    c->drv_buf = (TV_UINT8 *) mmap( (caddr_t)0, MAX_MMAP_BUF_SIZE,
>                                 PROT_READ|PROT_WRITE, 0, c->fd, (off_t)0 );
                                  PROT_READ|PROT_WRITE, 0, c->fd, (off_t)0 );
                                                        ^
and change the flags to be valid (to MAP_SHARED).  0 is equivalent to
MAP_SHARED, but only due to compatibility cruft that helped cause the
security hole.

Bruce

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