mirror of https://github.com/openssl/openssl.git
53 lines
1.9 KiB
Plaintext
53 lines
1.9 KiB
Plaintext
=pod
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=head1 NAME
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ossl_print_attribute_value
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- Print an X.500 directory attribute value
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=head1 SYNOPSIS
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#include <crypto/x509.h>
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int ossl_print_attribute_value(BIO *out, int obj_nid, const ASN1_TYPE *av, int indent);
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=head1 DESCRIPTION
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ossl_print_attribute_value() prints an X.500 directory value, which is an
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ASN.1 value and an associated attribute type that informs its interpretation,
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syntax, display characteristics, comparison, sorting, and substring searching
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behaviors, among other things. This attribute type is identified by an ASN.1
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object identifier.
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X.500 directory values are used in the relative distinguished names in a
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distinguished name, as seen in the C<subject> and C<issuer> fields of an X.509
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public key certificate. They also appear in the attributes of an X.509
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attribute certificate, as well as in the subjectDirectoryAttributes or
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associatedInformation X.509v3 extensions.
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The I<out> argument is a B<BIO> pointer for printing the output. The I<obj_nid>
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argument is the NID of the attribute type object identifier. The ASN.1 value
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itself is passed in I<av> and the level of desired indentation in terms of the
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number of spaces is specified in I<indent>.
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This function generally prints values in such a way as to keep them on a single
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line, but this is not always the case. Unrecognized attribute types whose syntax
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is a C<SET> or C<SEQUENCE> will be printed on multiple lines, for instance. Not
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all ASN.1 syntaxes are currently supported, and there is no guarantee for what
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printed values will look like in future versions.
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=head1 RETURN VALUES
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Returns 1 if it succeeds in printing, and 0 if it failed.
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=head1 COPYRIGHT
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Copyright 2024 The OpenSSL Project Authors. All Rights Reserved.
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Licensed under the Apache License 2.0 (the "License"). You may not use
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this file except in compliance with the License. You can obtain a copy
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in the file LICENSE in the source distribution or at
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L<https://www.openssl.org/source/license.html>.
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=cut
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