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77 lines
2.3 KiB
Plaintext
77 lines
2.3 KiB
Plaintext
=pod
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=head1 NAME
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X509_add_cert,
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X509_add_certs -
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X509 certificate list addition functions
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=head1 SYNOPSIS
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#include <openssl/x509.h>
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int X509_add_cert(STACK_OF(X509) *sk, X509 *cert, int flags);
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int X509_add_certs(STACK_OF(X509) *sk, STACK_OF(X509) *certs, int flags);
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=head1 DESCRIPTION
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X509_add_cert() adds a certificate I<cert> to the given list I<sk>.
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X509_add_certs() adds a list of certificate I<certs> to the given list I<sk>.
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The I<certs> argument may be NULL, which implies no effect.
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It does not modify the list I<certs> but
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in case the B<X509_ADD_FLAG_UP_REF> flag (described below) is set
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the reference counters of those of its members added to I<sk> are increased.
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Both these functions have a I<flags> parameter,
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which is used to control details of the operation.
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The value B<X509_ADD_FLAG_DEFAULT>, which equals 0, means no special semantics.
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If B<X509_ADD_FLAG_UP_REF> is set then
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the reference counts of those certificates added successfully are increased.
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If B<X509_ADD_FLAG_PREPEND> is set then the certificates are prepended to I<sk>.
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By default they are appended to I<sk>.
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In both cases the original order of the added certificates is preserved.
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If B<X509_ADD_FLAG_NO_DUP> is set then certificates already contained in I<sk>,
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which is determined using L<X509_cmp(3)>, are ignored.
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If B<X509_ADD_FLAG_NO_SS> is set then certificates that are marked self-signed,
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which is determined using L<X509_self_signed(3)>, are ignored.
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=head1 RETURN VALUES
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Both functions return 1 for success and 0 for failure.
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=head1 NOTES
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If X509_add_certs() is used with the flags B<X509_ADD_FLAG_NO_DUP> or
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B<X509_ADD_FLAG_NO_SS> it is advisable to use also B<X509_ADD_FLAG_UP_REF>
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because otherwise likely not for all members of the I<certs> list
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the ownership is transferred to the list of certificates I<sk>.
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Care should also be taken in case the I<certs> argument equals I<sk>.
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=head1 SEE ALSO
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L<X509_cmp(3)>
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L<X509_self_signed(3)>
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=head1 HISTORY
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The functions X509_add_cert() and X509_add_certs()
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were added in OpenSSL 3.0.
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=head1 COPYRIGHT
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Copyright 2019-2022 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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