Add support for selecting/enforcing a TLS version #329
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Add support for selecting/enforcing a TLS version through a new
sslVersion
field in theMQTTClient_SSLOptions
struct. This affects which*_client_method()
function is called in SSLSocket.c:MQTT_SSL_VERSION_DEFAULT
) ->SSLv23_client_method()
MQTT_SSL_VERSION_TLS_1_0
) ->TLSv1_client_method()
MQTT_SSL_VERSION_TLS_1_1
) ->TLSv1_1_client_method()
MQTT_SSL_VERSION_TLS_1_2
) ->TLSv1_2_client_method()
We use this in macchina.io.