Bugfix for crash when scanning while attempting to join #137
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someone42 thank you friend. This helped fix the incorrect password error. :) |
…tton to show password when joining a network, The wifi manager can be reliably stopped and restarted without a system reset, Changes to make DNS server replies more palatable for windows
…ime the wifi manager was restarted
…an old saved connection would cause a crash
…ns during a user-requested connection
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The main commit here (1af351e) is to deal with an issue where if esp32-wifi-manager is attempting to join an AP using stored AP details and can't join, when it attempts to scan for new APs there will be a crash. For example:
esp32-wifi-manager will then crash. This is because join attempts to the old router are still happening in the background, but the user connecting to esp32-wifi-manager's AP will trigger scan requests. As per esp-idf documentation (https://docs.espressif.com/projects/esp-idf/en/latest/esp32/api-guides/wifi.html#scan-when-wi-fi-is-connecting), esp_wifi_scan_start() will fail immediately if a join attempt is in progress. The use of the ESP_ERROR_CHECK macro then causes a crash.
The commit introduces a software timer which will retry the scan later if it fails.
The other commit (9ddab86) is just something to deal with compilation errors I was getting when trying to include wifi_manger.h in my own application.