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Title "X509_GET_VERSION 3" For nroff, turn off justification. Always turn off hyphenation; it makes
way too many mistakes in technical documents.
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 Header "SYNOPSIS" .Vb 1 #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); .Ve Header "DESCRIPTION" \fBX509_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.

\fBX509_set_version() sets the numerical value of the version field of certificate \fBx to version.

Similarly X509_REQ_get_version(), X509_REQ_set_version(), \fBX509_CRL_get_version() and X509_CRL_set_version() get and set the version number of certificate requests and CRLs.

Header "NOTES" The version field of certificates, certificate requests and CRLs has a \s-1DEFAULT\s0 value of v1\|(0) meaning the field should be omitted for version 1. This is handled transparently by these functions. Header "RETURN VALUES" \fBX509_get_version(), X509_REQ_get_version() and X509_CRL_get_version() return the numerical value of the version field.

\fBX509_set_version(), X509_REQ_set_version() and X509_CRL_set_version() return 1 for success and 0 for failure.

Header "SEE ALSO" \fBd2i_X509\|(3), \fBERR_get_error\|(3), \fBX509_CRL_get0_by_serial\|(3), \fBX509_get0_signature\|(3), \fBX509_get_ext_d2i\|(3), \fBX509_get_extension_flags\|(3), \fBX509_get_pubkey\|(3), \fBX509_get_subject_name\|(3), \fBX509_NAME_add_entry_by_txt\|(3), \fBX509_NAME_ENTRY_get_object\|(3), \fBX509_NAME_get_index_by_NID\|(3), \fBX509_NAME_print_ex\|(3), \fBX509_new\|(3), \fBX509_sign\|(3), \fBX509V3_get_d2i\|(3), \fBX509_verify_cert\|(3) Header "HISTORY" \fBX509_get_version(), X509_REQ_get_version() and X509_CRL_get_version() are functions in OpenSSL 1.1.0, in previous versions they were macros. Header "COPYRIGHT" Copyright 2015-2016 The OpenSSL Project Authors. All Rights Reserved.

Licensed under the OpenSSL license (the \*(L"License\*(R"). You may not use this file except in compliance with the License. You can obtain a copy in the file \s-1LICENSE\s0 in the source distribution or at <https://www.openssl.org/source/license.html>.