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-rw-r--r--lib/kernel/src/inet.erl92
1 files changed, 63 insertions, 29 deletions
diff --git a/lib/kernel/src/inet.erl b/lib/kernel/src/inet.erl
index de43ea792b..9fc685e728 100644
--- a/lib/kernel/src/inet.erl
+++ b/lib/kernel/src/inet.erl
@@ -73,9 +73,9 @@
-export([start_timer/1, timeout/1, timeout/2, stop_timer/1]).
-export_type([address_family/0, hostent/0, hostname/0, ip4_address/0,
- ip6_address/0, ip_address/0, posix/0, socket/0,
- port_number/0]).
-
+ ip6_address/0, ip_address/0, port_number/0,
+ local_address/0, socket_address/0, returned_non_ip_address/0,
+ posix/0, socket/0, stat_option/0]).
%% imports
-import(lists, [append/1, duplicate/2, filter/2, foldl/3]).
@@ -98,6 +98,11 @@
0..65535,0..65535,0..65535,0..65535}.
-type ip_address() :: ip4_address() | ip6_address().
-type port_number() :: 0..65535.
+-type local_address() :: {local, File :: binary() | string()}.
+-type returned_non_ip_address() ::
+ {local, binary()} |
+ {unspec, <<>>} |
+ {undefined, any()}.
-type posix() :: exbadport | exbadseq | file:posix().
-type socket() :: port().
@@ -138,7 +143,7 @@
-type socket_protocol() :: 'tcp' | 'udp' | 'sctp'.
-type socket_type() :: 'stream' | 'dgram' | 'seqpacket'.
-type socket_address() ::
- ip_address() | {address_family(), any()} | 'any' | 'loopback'.
+ ip_address() | 'any' | 'loopback' | local_address().
-type stat_option() ::
'recv_cnt' | 'recv_max' | 'recv_avg' | 'recv_oct' | 'recv_dvi' |
'send_cnt' | 'send_max' | 'send_avg' | 'send_oct' | 'send_pend'.
@@ -163,26 +168,33 @@ close(Socket) ->
end.
--spec peername(Socket) -> {ok, {Address, Port}} | {error, posix()} when
- Socket :: socket(),
- Address :: ip_address(),
- Port :: non_neg_integer().
+-spec peername(Socket :: socket()) ->
+ {ok,
+ {ip_address(), port_number()} |
+ returned_non_ip_address()} |
+ {error, posix()}.
peername(Socket) ->
prim_inet:peername(Socket).
--spec setpeername(Socket :: socket(), Address :: {ip_address(), port_number()}) ->
- 'ok' | {'error', any()}.
+-spec setpeername(
+ Socket :: socket(),
+ Address ::
+ {ip_address() | 'any' | 'loopback',
+ port_number()} |
+ socket_address()) ->
+ 'ok' | {'error', any()}.
setpeername(Socket, {IP,Port}) ->
prim_inet:setpeername(Socket, {IP,Port});
setpeername(Socket, undefined) ->
prim_inet:setpeername(Socket, undefined).
--spec peernames(Socket) -> {ok, [{Address, Port}]} | {error, posix()} when
- Socket :: socket(),
- Address :: ip_address(),
- Port :: non_neg_integer().
+-spec peernames(Socket :: socket()) ->
+ {ok,
+ [{ip_address(), port_number()} |
+ returned_non_ip_address()]} |
+ {error, posix()}.
peernames(Socket) ->
prim_inet:peernames(Socket).
@@ -198,15 +210,21 @@ peernames(Socket, Assoc) ->
prim_inet:peernames(Socket, Assoc).
--spec sockname(Socket) -> {ok, {Address, Port}} | {error, posix()} when
- Socket :: socket(),
- Address :: ip_address(),
- Port :: non_neg_integer().
+-spec sockname(Socket :: socket()) ->
+ {ok,
+ {ip_address(), port_number()} |
+ returned_non_ip_address()} |
+ {error, posix()}.
sockname(Socket) ->
prim_inet:sockname(Socket).
--spec setsockname(Socket :: socket(), Address :: {ip_address(), port_number()}) ->
+-spec setsockname(
+ Socket :: socket(),
+ Address ::
+ {ip_address() | 'any' | 'loopback',
+ port_number()} |
+ socket_address()) ->
'ok' | {'error', any()}.
setsockname(Socket, {IP,Port}) ->
@@ -214,10 +232,11 @@ setsockname(Socket, {IP,Port}) ->
setsockname(Socket, undefined) ->
prim_inet:setsockname(Socket, undefined).
--spec socknames(Socket) -> {ok, [{Address, Port}]} | {error, posix()} when
- Socket :: socket(),
- Address :: ip_address(),
- Port :: non_neg_integer().
+-spec socknames(Socket :: socket()) ->
+ {ok,
+ [{ip_address(), port_number()} |
+ returned_non_ip_address()]} |
+ {error, posix()}.
socknames(Socket) ->
prim_inet:socknames(Socket).
@@ -1296,7 +1315,17 @@ gethostbyaddr_tm_native(Addr, Timer, Opts) ->
end.
-spec open(Fd_or_OpenOpts :: integer() | list(),
- Addr :: socket_address(),
+ Addr ::
+ socket_address() |
+ {ip_address() | 'any' | 'loopback', % Unofficial
+ port_number()} |
+ {inet, % Unofficial
+ {ip4_address() | 'any' | 'loopback',
+ port_number()}} |
+ {inet6, % Unofficial
+ {ip6_address() | 'any' | 'loopback',
+ port_number()}} |
+ undefined, % Internal - no bind()
Port :: port_number(),
Opts :: [socket_setopt()],
Protocol :: socket_protocol(),
@@ -1316,11 +1345,16 @@ open(FdO, Addr, Port, Opts, Protocol, Family, Type, Module)
{ok,S} ->
case prim_inet:setopts(S, Opts) of
ok ->
- case if is_list(Addr) ->
- bindx(S, Addr, Port);
- true ->
- prim_inet:bind(S, Addr, Port)
- end of
+ case
+ case Addr of
+ undefined ->
+ {ok, undefined};
+ _ when is_list(Addr) ->
+ bindx(S, Addr, Port);
+ _ ->
+ prim_inet:bind(S, Addr, Port)
+ end
+ of
{ok, _} ->
inet_db:register_socket(S, Module),
{ok,S};