Fix memory leaks if handshake fails

[zefir-o]

No description provided.

[mcspr]

This way we lose last bearssl error since you delete the context obj with _freeSSL() call. You might want to save result of br_ssl_engine_last_error some place beforehand

Arduino/libraries/ESP8266WiFi/src/WiFiClientSecureBearSSL.cpp

Line 1347 in 1662248

int WiFiClientSecureCtx::getLastSSLError(char *dest, size_t len) {

[zefir-o]

This way we lose last bearssl error since you delete the context obj with _freeSSL() call. You might want to save result of br_ssl_engine_last_error some place beforehand

Arduino/libraries/ESP8266WiFi/src/WiFiClientSecureBearSSL.cpp

Line 1347 in 1662248

int WiFiClientSecureCtx::getLastSSLError(char *dest, size_t len) {

@mcspr Thank you for the hint. It was done similarly to existing code:

Arduino/libraries/ESP8266WiFi/src/WiFiClientSecureBearSSL.cpp

Line 1188 in 1662248

_freeSSL();

[d-a-v]

@igor-epam What do you think of saving the content of br_ssl_engine_last_error in a "releaseSSL()" method that would also call _freeSSL() ?