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esp32 crash when no resolve #47

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alonmuroch opened this issue Dec 31, 2024 · 0 comments

alonmuroch commented Dec 31, 2024 •

edited

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How to reproduce:

esp32-wroom-dev
W5500 ethernet

When resolve times out a crash happens on MDNS.cpp:1429 due to ipAddr == NULL.
It's NULL because the function is called by MDNS.cpp:1429:1071

How to solve:
change MDNS:1071 to

if (i == 0) {
               byte* noneAddress = new byte[4]{0, 0, 0, };
               this->_finishedResolvingName((char*)this->_resolveNames[0], noneAddress);
            }

{255, 255, 255, 255} is equal to INADDR_NONE

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