1=pod
2
3=head1 NAME
4
5X509V3_set_ctx,
6X509V3_set_issuer_pkey - X.509 v3 extension generation utilities
7
8=head1 SYNOPSIS
9
10 #include <openssl/x509v3.h>
11
12 void X509V3_set_ctx(X509V3_CTX *ctx, X509 *issuer, X509 *subject,
13                     X509_REQ *req, X509_CRL *crl, int flags);
14 int X509V3_set_issuer_pkey(X509V3_CTX *ctx, EVP_PKEY *pkey);
15
16=head1 DESCRIPTION
17
18X509V3_set_ctx() fills in the basic fields of I<ctx> of type B<X509V3_CTX>,
19providing details potentially needed by functions producing X509 v3 extensions,
20e.g., to look up values for filling in authority key identifiers.
21Any of I<subj>, I<req>, or I<crl> may be provided, pointing to a certificate,
22certification request, or certificate revocation list, respectively.
23If I<subj> or I<crl> is provided, I<issuer> should point to its issuer,
24for instance to help generating an authority key identifier extension.
25Note that if I<subj> is provided, I<issuer> may be the same as I<subj>,
26which means that I<subj> is self-issued (or even self-signed).
27I<flags> may be 0
28or contain B<X509V3_CTX_TEST>, which means that just the syntax of
29extension definitions is to be checked without actually producing an extension,
30or B<X509V3_CTX_REPLACE>, which means that each X.509v3 extension added as
31defined in some configuration section shall replace any already existing
32extension with the same OID.
33
34X509V3_set_issuer_pkey() explicitly sets the issuer private key of
35the certificate that has been provided in I<ctx>.
36This should be done for self-issued certificates (which may be self-signed
37or not) to provide fallback data for the authority key identifier extension.
38
39=head1 RETURN VALUES
40
41X509V3_set_ctx() and X509V3_set_issuer_pkey()
42return 1 on success and 0 on error.
43
44=head1 SEE ALSO
45
46L<X509_add_ext(3)>
47
48=head1 HISTORY
49
50X509V3_set_issuer_pkey() was added in OpenSSL 3.0.
51
52CTX_TEST was deprecated in OpenSSL 3.0; use X509V3_CTX_TEST instead.
53
54=head1 COPYRIGHT
55
56Copyright 2015-2021 The OpenSSL Project Authors. All Rights Reserved.
57
58Licensed under the Apache License 2.0 (the "License").  You may not use
59this file except in compliance with the License.  You can obtain a copy
60in the file LICENSE in the source distribution or at
61L<https://www.openssl.org/source/license.html>.
62
63=cut
64