The code 
print  Net::SSLeay::alert_desc_string(0);

[download]
simply returns 'CN' (close notify).
Did OP tried that? Did he have some problem with this function? Did he mention it in original post? No.

In reply to Re^3: Use Net::SSLeay, how to read the encrypted ssl alert record. by vsespb
in thread Use Net::SSLeay, how to read the encrypted ssl alert record. by fwingx

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