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