Re: [PATCHv5 4/5] Allow setting O_NONBLOCK flag for new sockets

[Ulrich Drepper]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Eric Dumazet wrote:
> 1) Can the fd passing with recvmsg() on AF_UNIX also gets O_CLOEXEC
> support ?

Already there, see MSG_CMSG_CLOEXEC.


> 2) Why this O_NONBLOCK ability is needed for sockets ? Is it a security
> issue, and if yes could you remind it to me ?

No security issue.  But look at any correct network program, all need to
set the mode to non-blocking.  Adding this support to the syscall comes
at almost no cost and it cuts the cost for every program down by one or
two syscalls.

- --
â Ulrich Drepper â Red Hat, Inc. â 444 Castro St â Mountain View, CA â
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.7 (GNU/Linux)
Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org

iD8DBQFHR9YQ2ijCOnn/RHQRArbyAJ0d25FPg/BWmJ4YIzJKhO9iaBJNXwCgmpuX
PAA6u3Dc56AlBegTRqtqJPc=
=j5vi
-----END PGP SIGNATURE-----
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/