=pod
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=head1 NAME
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OPENSSL_VERSION_NUMBER, OPENSSL_VERSION_TEXT, OpenSSL_version,
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OpenSSL_version_num - get OpenSSL version number
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=head1 SYNOPSIS
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#include <openssl/opensslv.h>
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#define OPENSSL_VERSION_NUMBER 0xnnnnnnnnnL
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#define OPENSSL_VERSION_TEXT "OpenSSL x.y.z xx XXX xxxx"
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#include <openssl/crypto.h>
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unsigned long OpenSSL_version_num();
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const char *OpenSSL_version(int t);
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=head1 DESCRIPTION
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OPENSSL_VERSION_NUMBER is a numeric release version identifier:
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MNNFFPPS: major minor fix patch status
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The status nibble has one of the values 0 for development, 1 to e for betas
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1 to 14, and f for release.
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for example
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0x000906000 == 0.9.6 dev
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0x000906023 == 0.9.6b beta 3
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0x00090605f == 0.9.6e release
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Versions prior to 0.9.3 have identifiers E<lt> 0x0930.
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Versions between 0.9.3 and 0.9.5 had a version identifier with this
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interpretation:
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MMNNFFRBB major minor fix final beta/patch
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for example
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0x000904100 == 0.9.4 release
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0x000905000 == 0.9.5 dev
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Version 0.9.5a had an interim interpretation that is like the current one,
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except the patch level got the highest bit set, to keep continuity. The
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number was therefore 0x0090581f.
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OPENSSL_VERSION_TEXT is the text variant of the version number and the
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release date. For example,
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"OpenSSL 1.0.1a 15 Oct 2015".
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OpenSSL_version_num() returns the version number.
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OpenSSL_version() returns different strings depending on B<t>:
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=over 4
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=item OPENSSL_VERSION
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The text variant of the version number and the release date. For example,
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"OpenSSL 1.0.1a 15 Oct 2015".
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=item OPENSSL_CFLAGS
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The compiler flags set for the compilation process in the form
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"compiler: ..." if available or "compiler: information not available"
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otherwise.
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=item OPENSSL_BUILT_ON
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The date of the build process in the form "built on: ..." if available
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or "built on: date not available" otherwise.
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=item OPENSSL_PLATFORM
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The "Configure" target of the library build in the form "platform: ..."
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if available or "platform: information not available" otherwise.
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=item OPENSSL_DIR
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The "OPENSSLDIR" setting of the library build in the form "OPENSSLDIR: "...""
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if available or "OPENSSLDIR: N/A" otherwise.
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=item OPENSSL_ENGINES_DIR
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The "ENGINESDIR" setting of the library build in the form "ENGINESDIR: "...""
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if available or "ENGINESDIR: N/A" otherwise.
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=back
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For an unknown B<t>, the text "not available" is returned.
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=head1 RETURN VALUES
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OpenSSL_version_num() returns the version number.
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OpenSSL_version() returns requested version strings.
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=head1 SEE ALSO
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L<crypto(7)>
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=head1 COPYRIGHT
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Copyright 2000-2018 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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