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Re: netsec 682578f 4/6: Add option to bypass NSM TLS checks on local net
From: |
Jimmy Yuen Ho Wong |
Subject: |
Re: netsec 682578f 4/6: Add option to bypass NSM TLS checks on local networks |
Date: |
Mon, 16 Jul 2018 16:24:45 +0100 |
On Mon, Jul 16, 2018 at 4:00 PM Eli Zaretskii <address@hidden> wrote:
>
> > From: Robert Pluim <address@hidden>
> > Date: Mon, 16 Jul 2018 15:34:35 +0200
> > Cc: address@hidden
> >
> > Eli, I see thereʼs a sys_getaddrinfo in w32.c, is something needed
> > to get emacs to use that on MS-Windows?
>
> No, you don't need anything special. nt/inc/socket.h redirects
> getaddrinfo into sys_getaddrinfo, and all our C sources see the
> redirection.
>
> > +DEFUN ("get-address-info", Fget_address_info, Sget_address_info, 1, 2, 0,
> > + doc: /* Look up ip address info of NAME.
> > +Optional parameter FAMILY controls whether to look up IPv4 or IPv6
> > +addresses. The default of nil means look up both, symbol `ipv4' means
> > +IPv4 only, symbol `ipv6' mean IPv6 only. Returns a list of addresses,
> > +or nil if none were found. */)
>
> This doc string doesn't tell that each address is a vector or a
> string.
>
> > + if (EQ (family, Qipv4))
> > + hints.ai_family = AF_INET;
> > +#ifdef AF_INET6
> > + if (EQ (family, Qipv6))
> > + hints.ai_family = AF_INET6;
> > +#endif
>
> Should we signal an error if 'ipv6' is requested on a system that
> doesn't support that?
>
> > + ret = getaddrinfo (SSDATA (name), NULL, &hints, &res);
>
> You should encode NAME (using ENCODE_SYSTEM), because it could include
> non-ASCII characters. In general, any Lisp string should be encoded
> before you can pass its data to a C library function.
>
Does getaddrinfo accept unicode hostnames? If not I think we can just
make sure NAME is all ASCII as per Punycode for i18nized host names.
> Thanks.
>
> P.S. This needs a NEWS entry, at the very least, and perhaps also an
> update for the ELisp manual.
>
- Re: netsec 682578f 4/6: Add option to bypass NSM TLS checks on local networks, Robert Pluim, 2018/07/15
- Re: netsec 682578f 4/6: Add option to bypass NSM TLS checks on local networks, Jimmy Yuen Ho Wong, 2018/07/15
- Re: netsec 682578f 4/6: Add option to bypass NSM TLS checks on local networks, Eli Zaretskii, 2018/07/16
- Re: netsec 682578f 4/6: Add option to bypass NSM TLS checks on local networks, Robert Pluim, 2018/07/17
- Re: netsec 682578f 4/6: Add option to bypass NSM TLS checks on local networks, Eli Zaretskii, 2018/07/17
- Re: netsec 682578f 4/6: Add option to bypass NSM TLS checks on local networks, Robert Pluim, 2018/07/17
- Re: netsec 682578f 4/6: Add option to bypass NSM TLS checks on local networks, Robert Pluim, 2018/07/17
- Re: netsec 682578f 4/6: Add option to bypass NSM TLS checks on local networks, Eli Zaretskii, 2018/07/17