2015-09-06 19:48:22 +08:00
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=pod
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=head1 NAME
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X509_get_version, X509_set_version, X509_REQ_get_version, X509_REQ_set_version,
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X509_CRL_get_version, X509_CRL_set_version - get or set certificate,
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2016-06-06 12:43:05 +08:00
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certificate request or CRL version
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2015-09-06 19:48:22 +08:00
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=head1 SYNOPSIS
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#include <openssl/x509.h>
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long X509_get_version(X509 *x);
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int X509_set_version(X509 *x, long version);
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long X509_REQ_get_version(X509_REQ *req);
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int X509_REQ_set_version(X509_REQ *x, long version);
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long X509_CRL_get_version(X509_CRL *crl);
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int X509_CRL_set_version(X509_CRL *x, long version);
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=head1 DESCRIPTION
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X509_get_version() returns the numerical value of the version field of
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certificate B<x>. Note: this is defined by standards (X.509 et al) to be one
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less than the certificate version. So a version 3 certificate will return 2 and
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2015-09-06 19:48:22 +08:00
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a version 1 certificate will return 0.
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X509_set_version() sets the numerical value of the version field of certificate
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B<x> to B<version>.
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Similarly X509_REQ_get_version(), X509_REQ_set_version(),
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X509_CRL_get_version() and X509_CRL_set_version() get and set the version
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number of certificate requests and CRLs.
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=head1 NOTES
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The version field of certificates, certificate requests and CRLs has a
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DEFAULT value of B<v1(0)> meaning the field should be omitted for version
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1. This is handled transparently by these functions.
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=head1 RETURN VALUES
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X509_get_version(), X509_REQ_get_version() and X509_CRL_get_version()
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return the numerical value of the version field.
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X509_set_version(), X509_REQ_set_version() and X509_CRL_set_version()
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return 1 for success and 0 for failure.
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=head1 SEE ALSO
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L<d2i_X509(3)>,
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L<ERR_get_error(3)>,
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L<X509_CRL_get0_by_serial(3)>,
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L<X509_get0_signature(3)>,
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L<X509_get_ext_d2i(3)>,
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L<X509_get_extension_flags(3)>,
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L<X509_get_pubkey(3)>,
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L<X509_get_subject_name(3)>,
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L<X509_NAME_add_entry_by_txt(3)>,
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L<X509_NAME_ENTRY_get_object(3)>,
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L<X509_NAME_get_index_by_NID(3)>,
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L<X509_NAME_print_ex(3)>,
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L<X509_new(3)>,
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L<X509_sign(3)>,
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L<X509V3_get_d2i(3)>,
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L<X509_verify_cert(3)>
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=head1 HISTORY
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X509_get_version(), X509_REQ_get_version() and X509_CRL_get_version() are
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functions in OpenSSL 1.1.0, in previous versions they were macros.
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2016-05-18 23:44:05 +08:00
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=head1 COPYRIGHT
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Copyright 2015-2016 The OpenSSL Project Authors. All Rights Reserved.
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Licensed under the OpenSSL license (the "License"). You may not use
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this file except in compliance with the License. You can obtain a copy
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in the file LICENSE in the source distribution or at
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L<https://www.openssl.org/source/license.html>.
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=cut
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