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-rw-r--r--lib/kernel/doc/src/inet.xml5
-rw-r--r--lib/kernel/src/inet.erl4
-rw-r--r--lib/kernel/src/inet_int.hrl1
-rw-r--r--lib/kernel/test/bif_SUITE.erl10
-rw-r--r--lib/kernel/test/gen_tcp_api_SUITE.erl19
5 files changed, 36 insertions, 3 deletions
diff --git a/lib/kernel/doc/src/inet.xml b/lib/kernel/doc/src/inet.xml
index e5d7ce048a..e6d418dc58 100644
--- a/lib/kernel/doc/src/inet.xml
+++ b/lib/kernel/doc/src/inet.xml
@@ -981,6 +981,11 @@ setcap cap_sys_admin,cap_sys_ptrace,cap_dac_read_search+epi beam.smp
indicated length are accepted and not considered invalid due
to internal buffer limitations.</p>
</item>
+ <tag><c>{line_delimiter, Char}</c>(TCP/IP sockets)</tag>
+ <item>
+ <p>Sets the line delimiting character for line oriented protocols
+ (<c>line</c>). Default value is <c>$\n</c>.</p>
+ </item>
<tag><c>{priority, Priority}</c></tag>
<item> <p>Set the protocol-defined priority for all packets to be sent
diff --git a/lib/kernel/src/inet.erl b/lib/kernel/src/inet.erl
index da7f04089d..855c6377a3 100644
--- a/lib/kernel/src/inet.erl
+++ b/lib/kernel/src/inet.erl
@@ -671,7 +671,7 @@ stats() ->
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
connect_options() ->
[tos, priority, reuseaddr, keepalive, linger, sndbuf, recbuf, nodelay,
- header, active, packet, packet_size, buffer, mode, deliver,
+ header, active, packet, packet_size, buffer, mode, deliver, line_delimiter,
exit_on_close, high_watermark, low_watermark, high_msgq_watermark,
low_msgq_watermark, send_timeout, send_timeout_close, delay_send, raw,
show_econnreset].
@@ -721,6 +721,8 @@ con_opt([Opt | Opts], #connect_opts{} = R, As) ->
{active,N} when is_integer(N), N < 32768, N >= -32768 ->
NOpts = lists:keydelete(active, 1, R#connect_opts.opts),
con_opt(Opts, R#connect_opts { opts = [{active,N}|NOpts] }, As);
+ {line_delimiter,C} when is_integer(C), C >= 0, C =< 255 ->
+ con_add(line_delimiter, C, R, Opts, As);
{Name,Val} when is_atom(Name) -> con_add(Name, Val, R, Opts, As);
_ -> {error, badarg}
end;
diff --git a/lib/kernel/src/inet_int.hrl b/lib/kernel/src/inet_int.hrl
index bfe4c9ec8c..e7c6cf8ae2 100644
--- a/lib/kernel/src/inet_int.hrl
+++ b/lib/kernel/src/inet_int.hrl
@@ -149,6 +149,7 @@
-define(INET_LOPT_MSGQ_LOWTRMRK, 37).
-define(INET_LOPT_NETNS, 38).
-define(INET_LOPT_TCP_SHOW_ECONNRESET, 39).
+-define(INET_LOPT_LINE_DELIM, 40).
% Specific SCTP options: separate range:
-define(SCTP_OPT_RTOINFO, 100).
-define(SCTP_OPT_ASSOCINFO, 101).
diff --git a/lib/kernel/test/bif_SUITE.erl b/lib/kernel/test/bif_SUITE.erl
index c3840f3d16..dd3010567a 100644
--- a/lib/kernel/test/bif_SUITE.erl
+++ b/lib/kernel/test/bif_SUITE.erl
@@ -33,6 +33,7 @@
spawn_failures/1,
run_fun/1,
+ decode_packet_delim/1,
wilderness/1]).
-export([init_per_testcase/2, end_per_testcase/2]).
@@ -516,6 +517,15 @@ fetch_proc_vals(Pid) ->
{value,{heap_size,HS}} = lists:keysearch(heap_size, 1, PI),
?line {Ls, P, FA, HS}.
+decode_packet_delim(doc) ->
+ ["Test erlang:packet_delim/3 with {line_delimiter,0} option"];
+decode_packet_delim(suite) ->
+ [];
+decode_packet_delim(Config) when is_list(Config) ->
+ {ok,<<"abc",0>>,<<"efg",0>>} =
+ erlang:decode_packet(line, <<"abc",0,"efg",0>>, [{line_delimiter, 0}]),
+ {more, undefined} = erlang:decode_packet(line, <<"abc",0,"efg",0>>, []).
+
% This testcase should probably be moved somewhere else
wilderness(doc) ->
["Test that memory allocation command line options affecting the"
diff --git a/lib/kernel/test/gen_tcp_api_SUITE.erl b/lib/kernel/test/gen_tcp_api_SUITE.erl
index a051d504b2..962471c20c 100644
--- a/lib/kernel/test/gen_tcp_api_SUITE.erl
+++ b/lib/kernel/test/gen_tcp_api_SUITE.erl
@@ -31,7 +31,7 @@
init_per_testcase/2, end_per_testcase/2,
t_connect_timeout/1, t_accept_timeout/1,
t_connect_bad/1,
- t_recv_timeout/1, t_recv_eof/1,
+ t_recv_timeout/1, t_recv_eof/1, t_recv_delim/1,
t_shutdown_write/1, t_shutdown_both/1, t_shutdown_error/1,
t_shutdown_async/1,
t_fdopen/1, t_fdconnect/1, t_implicit_inet6/1]).
@@ -48,7 +48,7 @@ all() ->
groups() ->
[{t_accept, [], [t_accept_timeout]},
{t_connect, [], [t_connect_timeout, t_connect_bad]},
- {t_recv, [], [t_recv_timeout, t_recv_eof]}].
+ {t_recv, [], [t_recv_timeout, t_recv_eof, t_recv_delim]}].
@@ -131,6 +131,21 @@ t_recv_eof(Config) when is_list(Config) ->
?line {error, closed} = gen_tcp:recv(Client, 0),
ok.
+t_recv_delim(doc) -> "Test using message delimiter $X";
+t_recv_delim(suite) -> [];
+t_recv_delim(Config) when is_list(Config) ->
+ {ok, L} = gen_tcp:listen(0, []),
+ {ok, Port} = inet:port(L),
+ Opts = [{active,false},{packet,line},{line_delimiter,$X}],
+ {ok, Client} = gen_tcp:connect(localhost, Port, Opts),
+ {ok, A} = gen_tcp:accept(L),
+ ok = gen_tcp:send(A, "abcXefgX"),
+ {ok, "abcX"} = gen_tcp:recv(Client, 0, 0),
+ {ok, "efgX"} = gen_tcp:recv(Client, 0, 0),
+ ok = gen_tcp:close(Client),
+ ok = gen_tcp:close(A),
+ ok.
+
%%% gen_tcp:shutdown/2
t_shutdown_write(Config) when is_list(Config) ->