v3.2.1
4e77257 obtain human-readable error message for SSL_connect
8681d4a Fix usage of mbedtls_ssl_read and mbedtls_ssl_write
2de3c0c obtain human-readable error message for SSL_read and SSL_write
fe4fb4e Print datetime when log to stdout
77572be Fix bug: Logical error for timeout check
eaacc64 Provide function to send closed message