X509_NAME_get0_der - get X509_NAME DER encoding

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       Licensed under the Apache License 2.0 (the "License").  You may not use this file except in compliance
       with the License.  You can obtain a copy in the file LICENSE in the source distribution or at
       <https://www.openssl.org/source/license.html>.

3.5.0                                              2025-06-04                           X509_NAME_GET0_DER(3SSL)

       The function X509_NAME_get0_der() returns an internal pointer to the encoding of an X509_NAME structure
       in *pder and consisting of *pderlen bytes. It is useful for applications that wish to examine the
       encoding of an X509_NAME structure without copying it.

       X509_NAME_get0_der - get X509_NAME DER encoding

       The function X509_NAME_get0_der() returns 1 for success and 0 if an error occurred.

d2i_X509(3)

        #include <openssl/x509.h>

        int X509_NAME_get0_der(const X509_NAME *nm, const unsigned char **pder,
                               size_t *pderlen);