diff options
Diffstat (limited to 'lib/kernel/src/inet.erl')
| -rw-r--r-- | lib/kernel/src/inet.erl | 46 |
1 files changed, 30 insertions, 16 deletions
diff --git a/lib/kernel/src/inet.erl b/lib/kernel/src/inet.erl index 9670271b2e..3ea530a366 100644 --- a/lib/kernel/src/inet.erl +++ b/lib/kernel/src/inet.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1997-2012. All Rights Reserved. +%% Copyright Ericsson AB 1997-2013. All Rights Reserved. %% %% The contents of this file are subject to the Erlang Public License, %% Version 1.1, (the "License"); you may not use this file except in @@ -712,7 +712,8 @@ udp_options() -> [tos, priority, reuseaddr, sndbuf, recbuf, header, active, buffer, mode, deliver, ipv6_v6only, broadcast, dontroute, multicast_if, multicast_ttl, multicast_loop, - add_membership, drop_membership, read_packets,raw]. + add_membership, drop_membership, read_packets,raw, + high_msgq_watermark, low_msgq_watermark]. udp_options(Opts, Family) -> @@ -766,7 +767,7 @@ udp_add(Name, Val, R, Opts, As) -> sctp_options() -> [ % The following are generic inet options supported for SCTP sockets: mode, active, buffer, tos, priority, dontroute, reuseaddr, linger, sndbuf, - recbuf, ipv6_v6only, + recbuf, ipv6_v6only, high_msgq_watermark, low_msgq_watermark, % Other options are SCTP-specific (though they may be similar to their % TCP and UDP counter-parts): @@ -946,21 +947,34 @@ gethostbyname_self(Name, Type) when is_atom(Name) -> gethostbyname_self(Name, Type) when is_list(Name), Type =:= inet; is_list(Name), Type =:= inet6 -> - case inet_db:gethostname() of - Name -> - {ok,make_hostent(Name, - [translate_ip(loopback, Type)], - [], Type)}; - Self -> + N = inet_db:tolower(Name), + Self = inet_db:gethostname(), + %% + %% This is the final fallback that pretends /etc/hosts has got + %% a line for the hostname on the loopback address. + %% Lookups into /etc/hosts are case insensitive and return + %% what is in the file. Therefore the letter case may differ between + %% the returned hostent record and the hostname that was asked for. + %% + case inet_db:tolower(Self) of + N -> + {ok, + make_hostent( + Self, [translate_ip(loopback, Type)], [], Type)}; + _ -> case inet_db:res_option(domain) of - "" -> {error,nxdomain}; + "" -> + {error,nxdomain}; Domain -> - case lists:append([Self,".",Domain]) of - Name -> - {ok,make_hostent(Name, - [translate_ip(loopback, Type)], - [], Type)}; - _ -> {error,nxdomain} + FQDN = lists:append([Self,".",Domain]), + case inet_db:tolower(FQDN) of + N -> + {ok, + make_hostent( + FQDN, + [translate_ip(loopback, Type)], [], Type)}; + _ -> + {error,nxdomain} end end end; |