Fix ssl:transport_accept/2 to return properly when socket is closed

A badmatch exception is thrown from ssl:transport_accept/2 when
ssl:close/1 is called on the socket. This fixes it to return
{error,closed} as expected.

2 files changed, 42 insertions, 12 deletions

diff --git a/lib/ssl/src/ssl.erl b/lib/ssl/src/ssl.erl
index 965e40a109..da5f750762 100644
--- a/lib/ssl/src/ssl.erl
+++ b/lib/ssl/src/ssl.erl
@@ -154,17 +154,21 @@ transport_accept(#sslsocket{pid = {ListenSocket, #config{cb=CbInfo, ssl=SslOpts}
     EmOptions = emulated_options(),
     {ok, InetValues} = inet:getopts(ListenSocket, EmOptions),
     {CbModule,_,_} = CbInfo,
-    {ok, Socket} = CbModule:accept(ListenSocket, Timeout),
-    inet:setopts(Socket, internal_inet_values()),
-    {ok, Port} = inet:port(Socket),
-    case ssl_connection_sup:start_child([server, "localhost", Port, Socket,
-                                         {SslOpts, socket_options(InetValues)}, self(),
-                                         CbInfo]) of
-        {ok, Pid} ->
-            CbModule:controlling_process(Socket, Pid),
-            {ok, SslSocket#sslsocket{pid = Pid}};
-        {error, Reason} ->
-            {error, Reason}
+    case CbModule:accept(ListenSocket, Timeout) of
+	{ok, Socket} ->
+	    inet:setopts(Socket, internal_inet_values()),
+	    {ok, Port} = inet:port(Socket),
+	    ConnArgs = [server, "localhost", Port, Socket,
+			{SslOpts, socket_options(InetValues)}, self(), CbInfo],
+	    case ssl_connection_sup:start_child(ConnArgs) of
+		{ok, Pid} ->
+		    CbModule:controlling_process(Socket, Pid),
+		    {ok, SslSocket#sslsocket{pid = Pid}};
+		{error, Reason} ->
+		    {error, Reason}
+	    end;
+	{error, Reason} ->
+	    {error, Reason}
     end;
 
 transport_accept(#sslsocket{} = ListenSocket, Timeout) ->
diff --git a/lib/ssl/test/ssl_basic_SUITE.erl b/lib/ssl/test/ssl_basic_SUITE.erl
index 30a721b0b5..db3afc1810 100644
--- a/lib/ssl/test/ssl_basic_SUITE.erl
+++ b/lib/ssl/test/ssl_basic_SUITE.erl
@@ -155,7 +155,7 @@ all(suite) ->
      upgrade, upgrade_with_timeout, tcp_connect,
      ipv6, ekeyfile, ecertfile, ecacertfile, eoptions, shutdown,
      shutdown_write, shutdown_both, shutdown_error, ciphers, 
-     send_close, dh_params,
+     send_close, close_transport_accept, dh_params,
      server_verify_peer_passive,
      server_verify_peer_active, server_verify_peer_active_once,
      server_verify_none_passive, server_verify_none_active, 
@@ -729,6 +729,32 @@ send_close(Config) when is_list(Config) ->
     gen_tcp:close(TcpS),    
     {error, _} = ssl:send(SslS, "Hello world"),    
     ssl_test_lib:close(Server).
+
+%%--------------------------------------------------------------------
+close_transport_accept(doc) ->
+    ["Tests closing ssl socket when waiting on ssl:transport_accept/1"];
+
+close_transport_accept(suite) ->
+    [];
+
+close_transport_accept(Config) when is_list(Config) ->
+    ServerOpts = ?config(server_opts, Config),
+    {_ClientNode, ServerNode, _Hostname} = ssl_test_lib:run_where(Config),
+
+    Port = 0,
+    Opts = [{active, false} | ServerOpts],
+    {ok, ListenSocket} = rpc:call(ServerNode, ssl, listen, [Port, Opts]),
+    spawn_link(fun() ->
+			test_server:sleep(?SLEEP),
+			rpc:call(ServerNode, ssl, close, [ListenSocket])
+	       end),
+    case rpc:call(ServerNode, ssl, transport_accept, [ListenSocket]) of
+	{error, closed} ->
+	    ok;
+	Other ->
+	    exit({?LINE, Other})
+    end.
+
 %%--------------------------------------------------------------------
 dh_params(doc) -> 
     ["Test to specify DH-params file in server."];