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Quick fix for Arduino R4 #1022

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Quick fix for Arduino R4 #1022

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4 changes: 4 additions & 0 deletions src/PubSubClient.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -8,6 +8,10 @@
#include "PubSubClient.h"
#include "Arduino.h"

#ifdef ARDUINO_UNOR4_WIFI
size_t strnlen(const char* b, size_t s) { size_t i; for(i=0; b[i]!=0 && i<s; i++); return i; }
#endif

PubSubClient::PubSubClient() {
this->_state = MQTT_DISCONNECTED;
this->_client = NULL;
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3 changes: 3 additions & 0 deletions src/PubSubClient.h
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Original file line number Diff line number Diff line change
Expand Up @@ -83,6 +83,9 @@
#define MQTT_CALLBACK_SIGNATURE void (*callback)(char*, uint8_t*, unsigned int)
#endif

#ifdef ARDUINO_UNOR4_WIFI
size_t strnlen(const char*, size_t);
#endif
#define CHECK_STRING_LENGTH(l,s) if (l+2+strnlen(s, this->bufferSize) > this->bufferSize) {_client->stop();return false;}

class PubSubClient : public Print {
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