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X509_GET_VERSION(3) OpenSSL X509_GET_VERSION(3)
NAME
X509_get_version, X509_set_version, X509_REQ_get_version,
X509_REQ_set_version, X509_CRL_get_version, X509_CRL_set_version - get
or set certificate, certificate request or CRL version
SYNOPSIS
#include <openssl/x509.h>
long X509_get_version(const X509 *x);
int X509_set_version(X509 *x, long version);
long X509_REQ_get_version(const X509_REQ *req);
int X509_REQ_set_version(X509_REQ *x, long version);
long X509_CRL_get_version(const X509_CRL *crl);
int X509_CRL_set_version(X509_CRL *x, long version);
DESCRIPTION
X509_get_version() returns the numerical value of the version field of
certificate x. Note: this is defined by standards (X.509 et al) to be
one less than the certificate version. So a version 3 certificate will
return 2 and a version 1 certificate will return 0.
X509_set_version() sets the numerical value of the version field of
certificate x to version.
Similarly X509_REQ_get_version(), X509_REQ_set_version(),
X509_CRL_get_version() and X509_CRL_set_version() get and set the
version number of certificate requests and CRLs.
NOTES
The version field of certificates, certificate requests and CRLs has a
DEFAULT value of v1(0) meaning the field should be omitted for version
1. This is handled transparently by these functions.
RETURN VALUES
X509_get_version(), X509_REQ_get_version() and X509_CRL_get_version()
return the numerical value of the version field.
X509_set_version(), X509_REQ_set_version() and X509_CRL_set_version()
return 1 for success and 0 for failure.
SEE ALSO
d2i_X509(3), ERR_get_error(3), X509_CRL_get0_by_serial(3),
X509_get0_signature(3), X509_get_ext_d2i(3),
X509_get_extension_flags(3), X509_get_pubkey(3),
X509_get_subject_name(3), X509_NAME_add_entry_by_txt(3),
X509_NAME_ENTRY_get_object(3), X509_NAME_get_index_by_NID(3),
X509_NAME_print_ex(3), X509_new(3), X509_sign(3), X509V3_get_d2i(3),
X509_verify_cert(3)
HISTORY
X509_get_version(), X509_REQ_get_version() and X509_CRL_get_version()
are functions in OpenSSL 1.1.0, in previous versions they were macros.
COPYRIGHT
Copyright 2015-2016 The OpenSSL Project Authors. All Rights Reserved.
Licensed under the OpenSSL license (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
<https://www.openssl.org/source/license.html>.
1.1.1v 2023-08-01 X509_GET_VERSION(3)