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Re: netsec 682578f 4/6: Add option to bypass NSM TLS checks on local net
From: |
Eli Zaretskii |
Subject: |
Re: netsec 682578f 4/6: Add option to bypass NSM TLS checks on local networks |
Date: |
Mon, 16 Jul 2018 18:00:11 +0300 |
> 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.
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