fix: use of wrong strnlen variant on PROGMEM payload strings

knolleary / pubsubclient

A client library for the Arduino Ethernet Shield that provides support for MQTT.

http://pubsubclient.knolleary.net/

MIT License

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Open muggenhor opened 11 months ago

muggenhor commented 11 months ago

strnlen_P is needed to avoid the wrong method of reading to cause bad things to happen (CPU exceptions on ESP8266).

Fixes: #747