socket_accept() now checks for SO_ACCEPTCONN before calling the protocol's

accept function to enforce valid codepaths (you need to call listen() before
accept()).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@19247 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/add-ons/kernel/network/stack/net_socket.cpp

@@ -389,6 +389,9 @@ int
 socket_accept(net_socket *socket, struct sockaddr *address, socklen_t *_addressLength,
 	net_socket **_acceptedSocket)
 {
+	if ((socket->options & SO_ACCEPTCONN) == 0)
+		return B_BAD_VALUE;
+
 	net_socket *accepted;
 	status_t status = socket->first_info->accept(socket->first_protocol,
 		&accepted);