diff options
Diffstat (limited to 'lib/kernel/src/gen_udp.erl')
| -rw-r--r-- | lib/kernel/src/gen_udp.erl | 81 |
1 files changed, 71 insertions, 10 deletions
diff --git a/lib/kernel/src/gen_udp.erl b/lib/kernel/src/gen_udp.erl index d6e8652e77..3001948209 100644 --- a/lib/kernel/src/gen_udp.erl +++ b/lib/kernel/src/gen_udp.erl @@ -20,7 +20,7 @@ -module(gen_udp). -export([open/1, open/2, close/1]). --export([send/2, send/4, recv/2, recv/3, connect/3]). +-export([send/2, send/3, send/4, send/5, recv/2, recv/3, connect/3]). -export([controlling_process/2]). -export([fdopen/2]). @@ -95,7 +95,7 @@ -spec open(Port) -> {ok, Socket} | {error, Reason} when Port :: inet:port_number(), Socket :: socket(), - Reason :: inet:posix(). + Reason :: system_limit | inet:posix(). open(Port) -> open(Port, []). @@ -112,7 +112,7 @@ open(Port) -> | {bind_to_device, binary()} | option(), Socket :: socket(), - Reason :: inet:posix(). + Reason :: system_limit | inet:posix(). open(Port, Opts0) -> {Mod, Opts} = inet:udp_module(Opts0), @@ -125,20 +125,80 @@ open(Port, Opts0) -> close(S) -> inet:udp_close(S). --spec send(Socket, Address, Port, Packet) -> ok | {error, Reason} when +-spec send(Socket, Destination, Packet) -> ok | {error, Reason} when Socket :: socket(), - Address :: inet:socket_address() | inet:hostname(), - Port :: inet:port_number(), + Destination :: {inet:ip_address(), inet:port_number()} | + inet:family_address(), Packet :: iodata(), Reason :: not_owner | inet:posix(). +%%% +send(Socket, Destination, Packet) -> + send(Socket, Destination, [], Packet). -send(S, Address, Port, Packet) when is_port(S) -> +-spec send(Socket, Host, Port, Packet) -> ok | {error, Reason} when + Socket :: socket(), + Host :: inet:hostname() | inet:ip_address(), + Port :: inet:port_number() | atom(), + Packet :: iodata(), + Reason :: not_owner | inet:posix(); +%%% + (Socket, Destination, AncData, Packet) -> ok | {error, Reason} when + Socket :: socket(), + Destination :: {inet:ip_address(), inet:port_number()} | + inet:family_address(), + AncData :: inet:ancillary_data(), + Packet :: iodata(), + Reason :: not_owner | inet:posix(); +%%% + (Socket, Destination, PortZero, Packet) -> ok | {error, Reason} when + Socket :: socket(), + Destination :: {inet:ip_address(), inet:port_number()} | + inet:family_address(), + PortZero :: inet:port_number(), + Packet :: iodata(), + Reason :: not_owner | inet:posix(). +%%% +send(S, {_,_} = Destination, PortZero = AncData, Packet) when is_port(S) -> + %% Destination is {Family,Addr} | {IP,Port}, + %% so it is complete - argument PortZero is redundant + if + PortZero =:= 0 -> + case inet_db:lookup_socket(S) of + {ok, Mod} -> + Mod:send(S, Destination, [], Packet); + Error -> + Error + end; + is_integer(PortZero) -> + %% Redundant PortZero; must be 0 + {error, einval}; + is_list(AncData) -> + case inet_db:lookup_socket(S) of + {ok, Mod} -> + Mod:send(S, Destination, AncData, Packet); + Error -> + Error + end + end; +send(S, Host, Port, Packet) when is_port(S) -> + send(S, Host, Port, [], Packet). + +-spec send(Socket, Host, Port, AncData, Packet) -> ok | {error, Reason} when + Socket :: socket(), + Host :: inet:hostname() | inet:ip_address() | inet:local_address(), + Port :: inet:port_number() | atom(), + AncData :: inet:ancillary_data(), + Packet :: iodata(), + Reason :: not_owner | inet:posix(). +%%% +send(S, Host, Port, AncData, Packet) + when is_port(S), is_list(AncData) -> case inet_db:lookup_socket(S) of {ok, Mod} -> - case Mod:getaddr(Address) of + case Mod:getaddr(Host) of {ok,IP} -> case Mod:getserv(Port) of - {ok,UP} -> Mod:send(S, IP, UP, Packet); + {ok,P} -> Mod:send(S, {IP,P}, AncData, Packet); {error,einval} -> exit(badarg); Error -> Error end; @@ -149,6 +209,7 @@ send(S, Address, Port, Packet) when is_port(S) -> Error end. +%% Connected send send(S, Packet) when is_port(S) -> case inet_db:lookup_socket(S) of {ok, Mod} -> @@ -186,7 +247,7 @@ recv(S,Len) when is_port(S), is_integer(Len) -> Port :: inet:port_number(), AncData :: inet:ancillary_data(), Packet :: string() | binary(), - Reason :: not_owner | inet:posix(). + Reason :: not_owner | timeout | inet:posix(). recv(S,Len,Time) when is_port(S) -> case inet_db:lookup_socket(S) of |