| 1 | =pod
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| 2 |
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| 3 | =head1 NAME
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| 4 |
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| 5 | x509v3_cache_extensions
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| 6 | - cache info on various X.509v3 extensions and further derived certificate data
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| 7 |
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| 8 | =head1 SYNOPSIS
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| 9 |
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| 10 | #include <openssl/x509v3.h>
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| 11 |
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| 12 | int x509v3_cache_extensions(X509 *x, OSSL_LIB_CTX *libctx, const char *propq);
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| 13 |
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| 14 | =head1 DESCRIPTION
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| 15 |
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| 16 | This function processes any X509v3 extensions present in an X509 object I<x>
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| 17 | and caches the result of that processing as well as further derived info,
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| 18 | for instance whether the certificate is self-issued or has version X.509v1.
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| 19 | It computes the SHA1 digest of the certificate using the default library context
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| 20 | and property query string and stores the result in x->sha1_hash,
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| 21 | or on failure sets B<EXFLAG_NO_FINGERPRINT> in x->flags.
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| 22 | It sets B<X509_SIG_INFO_VALID> in x->flags if x->siginf was filled successfully,
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| 23 | which may not be possible if a referenced algorithm is unknown or not available.
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| 24 | Many OpenSSL functions that use an X509 object call this function implicitly.
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| 25 |
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| 26 | =head1 RETURN VALUES
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| 27 |
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| 28 | This function returns 0 if the extensions or other portions of the certificate
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| 29 | are invalid or an error occurred.
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| 30 | Otherwise it returns 1.
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| 31 |
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| 32 | =head1 COPYRIGHT
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| 33 |
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| 34 | Copyright 2020-2021 The OpenSSL Project Authors. All Rights Reserved.
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| 35 |
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| 36 | Licensed under the Apache License 2.0 (the "License"). You may not use
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| 37 | this file except in compliance with the License. You can obtain a copy
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| 38 | in the file LICENSE in the source distribution or at
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| 39 | L<https://www.openssl.org/source/license.html>.
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| 40 |
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| 41 | =cut
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