tests: clean up temporary SSL session files.

RT#4557
Reviewed-by: NRich Salz <rsalz@openssl.org>

test/recipes/70-test_sslsessiontick.t

@@ -75,7 +75,7 @@ checkmessages(3, "No client support session ticket test", 0, 0, 0, 1);
 #Expected result: ClientHello extension seen; ServerHello extension not seen
 #                 NewSessionTicket message not seen; Abbreviated handshake
 clearall();
-(my $fh, my $session) = tempfile();
+(undef, my $session) = tempfile();
 $proxy->serverconnects(2);
 $proxy->clientflags("-sess_out ".$session);
 $proxy->start();
@@ -83,12 +83,13 @@ $proxy->clearClient();
 $proxy->clientflags("-sess_in ".$session);
 $proxy->clientstart();
 checkmessages(4, "Session resumption session ticket test", 1, 0, 0, 0);
+unlink $session;
 
 #Test 5: Test session resumption with ticket capable client without a ticket
 #Expected result: ClientHello extension seen; ServerHello extension seen
 #                 NewSessionTicket message seen; Abbreviated handshake
 clearall();
-($fh, $session) = tempfile();
+(undef, $session) = tempfile();
 $proxy->serverconnects(2);
 $proxy->clientflags("-sess_out ".$session." -no_ticket");
 $proxy->start();
@@ -97,6 +98,7 @@ $proxy->clientflags("-sess_in ".$session);
 $proxy->clientstart();
 checkmessages(5, "Session resumption with ticket capable client without a "
                  ."ticket", 1, 1, 1, 0);
+unlink $session;
 
 #Test 6: Client accepts empty ticket.
 #Expected result: ClientHello extension seen; ServerHello extension seen;
@@ -108,7 +110,7 @@ checkmessages(6, "Empty ticket test",  1, 1, 1, 1);
 
 #Test 7-8: Client keeps existing ticket on empty ticket.
 clearall();
-($fh, $session) = tempfile();
+(undef, $session) = tempfile();
 $proxy->serverconnects(3);
 $proxy->filter(undef);
 $proxy->clientflags("-sess_out ".$session);
@@ -127,6 +129,7 @@ $proxy->clientstart();
 #Expected result: ClientHello extension seen; ServerHello extension not seen;
 #                 NewSessionTicket message not seen; Abbreviated handshake.
 checkmessages(8, "Empty ticket resumption test",  1, 0, 0, 0);
+unlink $session;
 
 #Test 9: Bad server sends the ServerHello extension but does not send a
 #NewSessionTicket

test/recipes/70-test_tlsextms.t

@@ -91,7 +91,7 @@ checkmessages(2, "No ticket, no client extension extended master secret test", 0
 
 clearall();
 setrmextms(0, 0);
-(my $fh, my $session) = tempfile();
+(undef, my $session) = tempfile();
 $proxy->serverconnects(2);
 $proxy->clientflags("-sess_out ".$session);
 $proxy->start();
@@ -99,6 +99,7 @@ $proxy->clearClient();
 $proxy->clientflags("-sess_in ".$session);
 $proxy->clientstart();
 checkmessages(5, "Session resumption extended master secret test", 1, 1, 0);
+unlink $session;
 
 #Test 6: Session resumption extended master secret test original session
 # omits extension. Server must not resume session.
@@ -107,7 +108,7 @@ checkmessages(5, "Session resumption extended master secret test", 1, 1, 0);
 
 clearall();
 setrmextms(1, 0);
-($fh, $session) = tempfile();
+(undef, $session) = tempfile();
 $proxy->serverconnects(2);
 $proxy->clientflags("-sess_out ".$session);
 $proxy->start();
@@ -116,6 +117,7 @@ $proxy->clientflags("-sess_in ".$session);
 setrmextms(0, 0);
 $proxy->clientstart();
 checkmessages(6, "Session resumption extended master secret test", 1, 1, 1);
+unlink $session;
 
 #Test 7: Session resumption extended master secret test resumed session
 # omits client extension. Server must abort connection.
@@ -123,7 +125,7 @@ checkmessages(6, "Session resumption extended master secret test", 1, 1, 1);
 
 clearall();
 setrmextms(0, 0);
-($fh, $session) = tempfile();
+(undef, $session) = tempfile();
 $proxy->serverconnects(2);
 $proxy->clientflags("-sess_out ".$session);
 $proxy->start();
@@ -132,6 +134,7 @@ $proxy->clientflags("-sess_in ".$session);
 setrmextms(1, 0);
 $proxy->clientstart();
 ok(TLSProxy::Message->fail(), "Client inconsistent session resumption");
+unlink $session;
 
 #Test 8: Session resumption extended master secret test resumed session
 # omits server extension. Client must abort connection.
@@ -139,7 +142,7 @@ ok(TLSProxy::Message->fail(), "Client inconsistent session resumption");
 
 clearall();
 setrmextms(0, 0);
-($fh, $session) = tempfile();
+(undef, $session) = tempfile();
 $proxy->serverconnects(2);
 $proxy->clientflags("-sess_out ".$session);
 $proxy->start();
@@ -148,6 +151,7 @@ $proxy->clientflags("-sess_in ".$session);
 setrmextms(0, 1);
 $proxy->clientstart();
 ok(TLSProxy::Message->fail(), "Server inconsistent session resumption 1");
+unlink $session;
 
 #Test 9: Session resumption extended master secret test initial session
 # omits server extension. Client must abort connection.
@@ -155,7 +159,7 @@ ok(TLSProxy::Message->fail(), "Server inconsistent session resumption 1");
 
 clearall();
 setrmextms(0, 1);
-($fh, $session) = tempfile();
+(undef, $session) = tempfile();
 $proxy->serverconnects(2);
 $proxy->clientflags("-sess_out ".$session);
 $proxy->start();
@@ -164,6 +168,7 @@ $proxy->clientflags("-sess_in ".$session);
 setrmextms(0, 0);
 $proxy->clientstart();
 ok(TLSProxy::Message->fail(), "Server inconsistent session resumption 2");
+unlink $session;
 
 sub extms_filter
 {