Using syslog.logf crashed the Arduino

[Cyb0rg42]

I'am using the libraty on a Arduino Mega with an Ethernet Shield. When I use the syslog.logf function the Arduino stops working. Any idea what I' am doing wrong?

Sketch:

RemotePowerSwitch.txt

Thanks, Karl

[saspol]

Have same problem with Mega and W5100 shield. First usage syslog.log() crashing system.

[brianrho]

Likely caused because the library doesn't open the Ethernet socket first before writing log strings to it. This should be done with this->_client->begin(someRandomLocalPort) or in your sketch setup(), can also be done with udpClient.begin(someRandomLocalPort).

At first, while trying to port this library, I spent a while searching to see if this was already done automatically somewhere down the stack, but I found nothing. Then I found this issue which confirms the present Ethernet example won't work, probably wasn't a big deal before since most people use ESP8266/32 WiFi, whose UDP library doesn't seem to directly operate on sockets the same way as the W5x00 library, instead dynamically creating a new UDP context as needed for each datagram.