How does a client get the server's SAN/DNS strings

[Hal Murray <halmurray+openssl@xxxxxxxxx>]

I can get the subject and issuer with
  X509_get_subject_name and X509_get_issuer_name

I'm looking for something similar to get the SAN/DNS strings used to verify 
that this certificate is valid for the hostname provided via SSL_set1_host

Any API will be slightly complicated since there may be more than one SAN/DNS 
string.



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