openssl/doc/man3/OPENSSL_VERSION_NUMBER.pod

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=pod
=head1 NAME
OPENSSL_VERSION_NUMBER, OpenSSL_version,
OpenSSL_version_num - get OpenSSL version number
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=head1 SYNOPSIS
#include <openssl/opensslv.h>
#define OPENSSL_VERSION_NUMBER 0xnnnnnnnnnL
#include <openssl/crypto.h>
unsigned long OpenSSL_version_num();
const char *OpenSSL_version(int t);
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=head1 DESCRIPTION
OPENSSL_VERSION_NUMBER is a numeric release version identifier:
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
1 to 14, and f for release.
for example
0x000906000 == 0.9.6 dev
0x000906023 == 0.9.6b beta 3
0x00090605f == 0.9.6e release
Versions prior to 0.9.3 have identifiers E<lt> 0x0930.
Versions between 0.9.3 and 0.9.5 had a version identifier with this
interpretation:
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MMNNFFRBB major minor fix final beta/patch
for example
0x000904100 == 0.9.4 release
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
number was therefore 0x0090581f.
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
=item OPENSSL_VERSION
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The text variant of the version number and the release date. For example,
"OpenSSL 1.0.1a 15 Oct 2015".
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=item OPENSSL_CFLAGS
The compiler flags set for the compilation process in the form
"compiler: ..." if available or "compiler: information not available"
otherwise.
=item OPENSSL_BUILT_ON
The date of the build process in the form "built on: ..." if available
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: ..."
if available or "platform: information not available" otherwise.
=item OPENSSL_DIR
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The "OPENSSLDIR" setting of the library build in the form "OPENSSLDIR: "...""
if available or "OPENSSLDIR: N/A" otherwise.
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=item OPENSSL_ENGINES_DIR
The "ENGINESDIR" setting of the library build in the form "ENGINESDIR: "...""
if available or "ENGINESDIR: N/A" otherwise.
=back
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For an unknown B<t>, the text "not available" is returned.
=head1 RETURN VALUES
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OpenSSL_version_num() returns the version number.
OpenSSL_version() returns requested version strings.
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=head1 SEE ALSO
L<crypto(7)>
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=head1 COPYRIGHT
Copyright 2000-2018 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
L<https://www.openssl.org/source/license.html>.
=cut