Date: Wed, 28 Jun 2000 19:55:28 -0400 From: "Vladimir N. Silyaev" <vsilyaev@mindspring.com> To: Wilbert de Graaf <wilbertdg@hetnet.nl> Cc: freebsd-hackers@freebsd.org Subject: Re: Getting the plain void* through the generic ioctl processing Message-ID: <20000628195528.A6739@jupiter.delta.ny.us>
next in thread | raw e-mail | index | archive | help
You have to declare ioctl as the next:
#define SIO_SET_MULTICAST_FILTER _IO ('s', 63)
And after that in your code mannualy via functions documented in
copy(9) and fetch(9) manpages, to access that user space structure,
user space pointer will be available for you as third arument
in your ioctl handler.
--
Vladimir
To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-hackers" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20000628195528.A6739>