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Simple HTTP client with HTTP/1.1, HTTP/2, and HTTP/3 support

Security advisory: This version has known vulnerabilities. View advisories
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hackney src hackney_local_tcp.erl
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src/hackney_local_tcp.erl 

%%% -*- erlang -*-

%%%

%%% This file is part of hackney released under the Apache 2 license.

%%% See the NOTICE for more information.

%%%

%%% Copyright (c) 2011-2012, Loïc Hoguin <essen@ninenines.eu>

%%%

-module(hackney_local_tcp).

-export([messages/1,

  connect/3, connect/4,

  recv/2, recv/3,

  send/2,

  setopts/2,

  controlling_process/2,

  peername/1,

  close/1,

  shutdown/2,

  sockname/1]).



%% @doc Atoms used to identify messages in {active, once | true} mode.

messages(_) -> {tcp, tcp_closed, tcp_error}.



connect(Host, Port, Opts) ->

  connect(Host, Port, Opts, infinity).



connect(Host, Port, Opts, Timeout) when is_list(Host), is_integer(Port),

                                        (Timeout =:= infinity orelse is_integer(Timeout)) ->

  BaseOpts = [binary, {active, false}, {packet, raw}],

  Opts1 = hackney_util:merge_opts(BaseOpts, Opts),

  %% connect

  gen_tcp:connect({local, Host}, Port, Opts1, Timeout).



recv(Socket, Length) ->

  recv(Socket, Length, infinity).



%% @doc Receive a packet from a socket in passive mode.

%% @see gen_tcp:recv/3

-spec recv(inet:socket(), non_neg_integer(), timeout())

    -> {ok, any()} | {error, closed | atom()}.

recv(Socket, Length, Timeout) ->

  gen_tcp:recv(Socket, Length, Timeout).





%% @doc Send a packet on a socket.

%% @see gen_tcp:send/2

-spec send(inet:socket(), iolist()) -> ok | {error, atom()}.

send(Socket, Packet) ->

  gen_tcp:send(Socket, Packet).



%% @doc Set one or more options for a socket.

%% @see inet:setopts/2

-spec setopts(inet:socket(), list()) -> ok | {error, atom()}.

setopts(Socket, Opts) ->

  inet:setopts(Socket, Opts).



%% @doc Assign a new controlling process <em>Pid</em> to <em>Socket</em>.

%% @see gen_tcp:controlling_process/2

-spec controlling_process(inet:socket(), pid())

    -> ok | {error, closed | not_owner | atom()}.

controlling_process(Socket, Pid) ->

  gen_tcp:controlling_process(Socket, Pid).



%% @doc Return the address and port for the other end of a connection.

%% @see inet:peername/1

-spec peername(inet:socket())

    -> {ok, {inet:ip_address(), inet:port_number()}} | {error, atom()}.

peername(Socket) ->

  inet:peername(Socket).



%% @doc Close a TCP socket.

%% @see gen_tcp:close/1

-spec close(inet:socket()) -> ok.

close(Socket) ->

  gen_tcp:close(Socket).



%% @doc Immediately close a socket in one or two directions.

%% @see gen_tcp:shutdown/2

-spec shutdown(inet:socket(), read | write | read_write) -> ok.

shutdown(Socket, How) ->

  gen_tcp:shutdown(Socket, How).



%% @doc Get the local address and port of a socket

%% @see inet:sockname/1

-spec sockname(inet:socket())

    -> {ok, {inet:ip_address(), inet:port_number()}} | {error, atom()}.

sockname(Socket) ->

  inet:sockname(Socket).