NAME

       PKCS8_pkey_get0_attrs, PKCS8_pkey_add1_attr, PKCS8_pkey_add1_attr_by_NID,
       PKCS8_pkey_add1_attr_by_OBJ - PKCS8 attribute functions

SYNOPSIS

        #include <openssl/x509.h>

        const STACK_OF(X509_ATTRIBUTE) *
        PKCS8_pkey_get0_attrs(const PKCS8_PRIV_KEY_INFO *p8);
        int PKCS8_pkey_add1_attr(PKCS8_PRIV_KEY_INFO *p8, X509_ATTRIBUTE *attr);
        int PKCS8_pkey_add1_attr_by_NID(PKCS8_PRIV_KEY_INFO *p8, int nid, int type,
                                        const unsigned char *bytes, int len);
        int PKCS8_pkey_add1_attr_by_OBJ(PKCS8_PRIV_KEY_INFO *p8, const ASN1_OBJECT *obj,
                                       int type, const unsigned char *bytes, int len);

DESCRIPTION

       PKCS8_pkey_get0_attrs() returns a const STACK of X509_ATTRIBUTE present in the passed
       const PKCS8_PRIV_KEY_INFO structure p8.

       PKCS8_pkey_add1_attr() adds a constructed X509_ATTRIBUTE attr to the existing
       PKCS8_PRIV_KEY_INFO structure p8.

       PKCS8_pkey_add1_attr_by_NID() and PKCS8_pkey_add1_attr_by_OBJ() construct a new
       X509_ATTRIBUTE from the passed arguments and add it to the existing PKCS8_PRIV_KEY_INFO
       structure p8.

RETURN VALUES

       PKCS8_pkey_add1_attr(), PKCS8_pkey_add1_attr_by_NID(), and PKCS8_pkey_add1_attr_by_OBJ()
       return 1 for success and 0 for failure.

NOTES

       STACK of X509_ATTRIBUTE is present in many X509-related structures and some of them have
       the corresponding set of similar functions.

SEE ALSO

       crypto(7)

COPYRIGHT

       Copyright 2020 The OpenSSL Project Authors. All Rights Reserved.

       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>.