How to read the Principal Name

[Gayathri Manoj]

Hi All,

 I want  to parse the X509 pem certificate to read the principal name
under X509v3 Subject Alternative Name-> othername. For this I read the pem
certificate using PEM_read_bio_X509_AUX() and  X509_print_ex() API. But it
is showing

X509v3 Subject Alternative Name:
                othername:<unsupported>

Please let me know  is there any openssl apis to support  othername.

Thanks,
Gayathri