=pod

=head1 NAME

PKCS12_SAFEBAG_get0_attrs, PKCS12_get_attr_gen
- Retrieve attributes from a PKCS#12 safeBag

=head1 SYNOPSIS

 #include <openssl/pkcs12.h>

 const STACK_OF(X509_ATTRIBUTE) *PKCS12_SAFEBAG_get0_attrs(const PKCS12_SAFEBAG *bag);

 ASN1_TYPE *PKCS12_get_attr_gen(const STACK_OF(X509_ATTRIBUTE) *attrs,
                                int attr_nid);

=head1 DESCRIPTION

PKCS12_SAFEBAG_get0_attrs() retrieves the stack of B<X509_ATTRIBUTE>s from a 
PKCS#12 safeBag. I<bag> is the B<PKCS12_SAFEBAG> to retrieve the attributes from.

PKCS12_get_attr_gen() retrieves an attribute by NID from a stack of
B<X509_ATTRIBUTE>s. I<attr_nid> is the NID of the attribute to retrieve.

=head1 RETURN VALUES

PKCS12_SAFEBAG_get0_attrs() returns the stack of B<X509_ATTRIBUTE>s from a 
PKCS#12 safeBag, which could be empty.

PKCS12_get_attr_gen() returns an B<ASN1_TYPE> object containing the attribute, 
or NULL if the attribute was either not present or an error occurred.

PKCS12_get_attr_gen() does not allocate a new attribute. The returned attribute
is still owned by the B<PKCS12_SAFEBAG> in which it resides.

=head1 SEE ALSO

L<PKCS12_get_friendlyname(3)>,
L<PKCS12_add_friendlyname_asc(3)>

=head1 COPYRIGHT

Copyright 2019-2020 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
L<https://www.openssl.org/source/license.html>.

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