with B<SSL_ERROR_WANT_RETRY_VERIFY>.
The application can for instance fetch further certificates or cert status
information needed for the verification.
-Note that the handshake may still be aborted if a subsequent invocation of the
-callback (e.g. at a lower depth, or for a separate error condition) returns 0.
Calling L<SSL_connect(3)> again resumes the connection attempt by retrying the
server certificate verification step.
This process may even be repeated if need be.
+Note that the handshake may still be aborted if a subsequent invocation of the
+callback (e.g., at a lower depth, or for a separate error condition) returns 0.
SSL_CTX_set_verify_depth() sets the maximum B<depth> for the certificate chain
verification that shall be allowed for B<ctx>.