0.29.0

[ssilverman]

Added

• Added protected access to the internal std::FILE* stream in the StdioPrint utility class.
• Added more unit tests:
  • test_ethernet:
    • test_server_zero_port
    • test_server_accept
    • test_server_construct_int_port
• Added printf format string checking for Print-derived classes. As of this writing, Teensyduino (1.59) and other platforms don't do compiler checking for Print::printf.
• Added more support for errno. Appropriate functions will set this after encountering an error.
• Added tests for the Arduino-API begin(...) functions.
• Added a way to utilize an externally-defined driver.
• Added driver_is_mac_settable() to the driver API. This checks if the MAC address can be set.

Changed

• Updated and improved PixelPusherServer example.
• Call qnethernet_hal_get_system_mac_address(mac) in the unsupported driver's driver_get_system_mac(mac) implementation. This enables MAC address retrieval for more platforms when communication isn't needed; Teensy 4.0, for example.
• Turned the internal MAC address into an optional and simplified the Ethernet constructor. This change should make it easier to initialze a MAC address from a custom driver.
• Changed Arduino-API non-DHCP begin(...) functions to return bool.
• Improved driver logic so that lwIP options can be included in the driver headers.
• Improved OSCPrinter example to use the UDP data directly.
• Renamed driver_set_mac_address_allowed() to driver_set_incoming_mac_address_allowed().
• Changed driver_proc_input(netif) to return a pbuf*.

Fixed

• Fixed EthernetServer::port() to return the system-chosen port if a zero value was specified.
• Fixed EthernetUDP::stop() to leave any multicast group joined when starting to listen on a multicast address.
• Fixed MAC address restore if an Arduino-API non-DHCP begin(...) call fails.
• Fixed EthernetClient::read() and peek() to return -1 instead of 0 when there's no internal state.
• Properly initializing multicast filtering so that it happens before igmp_start(), which sets up the all-systems group.

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This discussion was created from the release 0.29.0.