X509_GET_VERSION - Online Linux Manual PageSection : 3
Updated : 2021-03-26
Source : 1.1.1k
Note : OpenSSL
NAMEX509_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.
NOTESThe 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.
COPYRIGHTCopyright 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>. 0
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