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-rw-r--r--lib/kernel/src/inet.erl96
1 files changed, 67 insertions, 29 deletions
diff --git a/lib/kernel/src/inet.erl b/lib/kernel/src/inet.erl
index 327e0f93f1..5649188c38 100644
--- a/lib/kernel/src/inet.erl
+++ b/lib/kernel/src/inet.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1997-2010. All Rights Reserved.
+%% Copyright Ericsson AB 1997-2011. 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
@@ -63,7 +63,8 @@
%% timer interface
-export([start_timer/1, timeout/1, timeout/2, stop_timer/1]).
--export_type([ip_address/0, socket/0]).
+-export_type([family_option/0, hostent/0, hostname/0, ip4_address/0,
+ ip6_address/0, ip_address/0, posix/0, socket/0]).
%% imports
-import(lists, [append/1, duplicate/2, filter/2, foldl/3]).
@@ -79,8 +80,16 @@
%%% ---------------------------------
%%% Contract type definitions
+
+-type hostent() :: #hostent{}.
+-type hostname() :: atom() | string().
+-type ip4_address() :: {0..255,0..255,0..255,0..255}.
+-type ip6_address() :: {0..65535,0..65535,0..65535,0..65535,
+ 0..65535,0..65535,0..65535,0..65535}.
+-type ip_address() :: ip4_address() | ip6_address().
+-type ip_port() :: 0..65535.
+-type posix() :: exbadport | exbadseq | file:posix().
-type socket() :: port().
--type posix() :: atom().
-type socket_setopt() ::
{'raw', non_neg_integer(), non_neg_integer(), binary()} |
@@ -106,7 +115,7 @@
{'packet',
0 | 1 | 2 | 4 | 'raw' | 'sunrm' | 'asn1' |
'cdr' | 'fcgi' | 'line' | 'tpkt' | 'http' | 'httph' | 'http_bin' | 'httph_bin' } |
- {'mode', list() | binary()} |
+ {'mode', 'list' | 'binary'} |
{'port', 'port', 'term'} |
{'exit_on_close', boolean()} |
{'low_watermark', non_neg_integer()} |
@@ -195,12 +204,13 @@
%%% ---------------------------------
--spec get_rc() -> [{any(),any()}].
+-spec get_rc() -> [{Par :: any(), Val :: any()}].
get_rc() ->
inet_db:get_rc().
--spec close(Socket :: socket()) -> 'ok'.
+-spec close(Socket) -> 'ok' when
+ Socket :: socket().
close(Socket) ->
prim_inet:close(Socket),
@@ -211,8 +221,10 @@ close(Socket) ->
ok
end.
--spec peername(Socket :: socket()) ->
- {'ok', {ip_address(), non_neg_integer()}} | {'error', posix()}.
+-spec peername(Socket) -> {ok, {Address, Port}} | {error, posix()} when
+ Socket :: socket(),
+ Address :: ip_address(),
+ Port :: non_neg_integer().
peername(Socket) ->
prim_inet:peername(Socket).
@@ -226,8 +238,10 @@ setpeername(Socket, undefined) ->
prim_inet:setpeername(Socket, undefined).
--spec sockname(Socket :: socket()) ->
- {'ok', {ip_address(), non_neg_integer()}} | {'error', posix()}.
+-spec sockname(Socket) -> {ok, {Address, Port}} | {error, posix()} when
+ Socket :: socket(),
+ Address :: ip_address(),
+ Port :: non_neg_integer().
sockname(Socket) ->
prim_inet:sockname(Socket).
@@ -260,8 +274,10 @@ send(Socket, Packet) ->
setopts(Socket, Opts) ->
prim_inet:setopts(Socket, Opts).
--spec getopts(Socket :: socket(), Opts :: [socket_getopt()]) ->
- {'ok', [socket_setopt()]} | {'error', posix()}.
+-spec getopts(Socket, Options) ->
+ {'ok', [socket_setopt()]} | {'error', posix()} when
+ Socket :: socket(),
+ Options :: [socket_getopt()].
getopts(Socket, Opts) ->
prim_inet:getopts(Socket, Opts).
@@ -272,7 +288,19 @@ getopts(Socket, Opts) ->
getifaddrs(Socket) ->
prim_inet:getifaddrs(Socket).
--spec getifaddrs() -> {'ok', [string()]} | {'error', posix()}.
+-spec getifaddrs() -> {ok, Iflist} | {error, posix()} when
+ Iflist :: [{Ifname,[Ifopt]}],
+ Ifname :: string(),
+ Ifopt :: {flag,[Flag]} | {addr,Addr} | {netmask,Netmask}
+ | {broadaddr,Broadaddr} | {dstaddr,Dstaddr}
+ | {hwaddr,Hwaddr},
+ Flag :: up | broadcast | loopback | pointtopoint
+ | running | multicast,
+ Addr :: ip_address(),
+ Netmask :: ip_address(),
+ Broadaddr :: ip_address(),
+ Dstaddr :: ip_address(),
+ Hwaddr :: [byte()].
getifaddrs() ->
withsocket(fun(S) -> prim_inet:getifaddrs(S) end).
@@ -371,7 +399,8 @@ popf(_Socket) ->
% use of the DHCP-protocol
% should never fail
--spec gethostname() -> {'ok', string()}.
+-spec gethostname() -> {'ok', Hostname} when
+ Hostname :: string().
gethostname() ->
case inet_udp:open(0,[]) of
@@ -402,19 +431,23 @@ getstat(Socket) ->
getstat(Socket,What) ->
prim_inet:getstat(Socket, What).
--spec gethostbyname(Name :: string() | atom()) ->
- {'ok', #hostent{}} | {'error', posix()}.
+-spec gethostbyname(Hostname) -> {ok, Hostent} | {error, posix()} when
+ Hostname :: hostname(),
+ Hostent :: hostent().
gethostbyname(Name) ->
gethostbyname_tm(Name, inet, false).
--spec gethostbyname(Name :: string() | atom(), Family :: family_option()) ->
- {'ok', #hostent{}} | {'error', posix()}.
+-spec gethostbyname(Hostname, Family) ->
+ {ok, Hostent} | {error, posix()} when
+ Hostname :: hostname(),
+ Family :: family_option(),
+ Hostent :: hostent().
gethostbyname(Name,Family) ->
gethostbyname_tm(Name, Family, false).
--spec gethostbyname(Name :: string() | atom(),
+-spec gethostbyname(Name :: hostname(),
Family :: family_option(),
Timeout :: non_neg_integer() | 'infinity') ->
{'ok', #hostent{}} | {'error', posix()}.
@@ -439,8 +472,9 @@ gethostbyname_tm(Name,Family,Timer) ->
gethostbyname_tm(Name, Family, Timer, Opts).
--spec gethostbyaddr(Address :: string() | ip_address()) ->
- {'ok', #hostent{}} | {'error', posix()}.
+-spec gethostbyaddr(Address) -> {ok, Hostent} | {error, posix()} when
+ Address :: string() | ip_address(),
+ Hostent :: hostent().
gethostbyaddr(Address) ->
gethostbyaddr_tm(Address, false).
@@ -491,14 +525,15 @@ getfd(Socket) ->
%% Lookup an ip address
%%
--spec getaddr(Host :: ip_address() | string() | atom(),
- Family :: family_option()) ->
- {'ok', ip_address()} | {'error', posix()}.
+-spec getaddr(Host, Family) -> {ok, Address} | {error, posix()} when
+ Host :: ip_address() | hostname(),
+ Family :: family_option(),
+ Address :: ip_address().
getaddr(Address, Family) ->
getaddr(Address, Family, infinity).
--spec getaddr(Host :: ip_address() | string() | atom(),
+-spec getaddr(Host :: ip_address() | hostname(),
Family :: family_option(),
Timeout :: non_neg_integer() | 'infinity') ->
{'ok', ip_address()} | {'error', posix()}.
@@ -515,9 +550,11 @@ getaddr_tm(Address, Family, Timer) ->
Error -> Error
end.
--spec getaddrs(Host :: ip_address() | string() | atom(),
- Family :: family_option()) ->
- {'ok', [ip_address()]} | {'error', posix()}.
+-spec getaddrs(Host, Family) ->
+ {ok, Addresses} | {error, posix()} when
+ Host :: ip_address() | hostname(),
+ Family :: family_option(),
+ Addresses :: [ip_address()].
getaddrs(Address, Family) ->
getaddrs(Address, Family, infinity).
@@ -1237,7 +1274,8 @@ port_list(Name) ->
%% utils
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
--spec format_error(posix()) -> string().
+-spec format_error(Posix) -> string() when
+ Posix :: posix().
format_error(exbadport) -> "invalid port state";
format_error(exbadseq) -> "bad command sequence";
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-06 13:38:45 +0000