NAME

       OPENSSL_VERSION_NUMBER, OpenSSL_version, OpenSSL_version_num - get OpenSSL version number

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);

DESCRIPTION

       OPENSSL_VERSION_NUMBER is a numeric release version identifier:

        MNNFFPPS: major minor fix patch status

       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 < 0x0930.  Versions between 0.9.3 and 0.9.5 had a
       version identifier with this interpretation:

        MMNNFFRBB major minor fix final beta/patch

       for example

        0x000904100 == 0.9.4 release
        0x000905000 == 0.9.5 dev

       Version 0.9.5a had an interim interpretation that is like the current one, except the
       patch level got the highest bit set, to keep continuity.  The number was therefore
       0x0090581f.

       OpenSSL_version_num() returns the version number.

       OpenSSL_version() returns different strings depending on t:

       OPENSSL_VERSION
           The text variant of the version number and the release date.  For example, "OpenSSL
           1.0.1a 15 Oct 2015".

       OPENSSL_CFLAGS
           The compiler flags set for the compilation process in the form "compiler: ..."  if
           available or "compiler: information not available" otherwise.

       OPENSSL_BUILT_ON
           The date of the build process in the form "built on: ..." if available or "built on:
           date not available" otherwise.

       OPENSSL_PLATFORM
           The "Configure" target of the library build in the form "platform: ..."  if available
           or "platform: information not available" otherwise.

       OPENSSL_DIR
           The "OPENSSLDIR" setting of the library build in the form "OPENSSLDIR: "...""  if
           available or "OPENSSLDIR: N/A" otherwise.

       OPENSSL_ENGINES_DIR
           The "ENGINESDIR" setting of the library build in the form "ENGINESDIR: "...""  if
           available or "ENGINESDIR: N/A" otherwise.

       For an unknown t, the text "not available" is returned.

RETURN VALUES

       OpenSSL_version_num() returns the version number.

       OpenSSL_version() returns requested version strings.

SEE ALSO

       crypto(7)

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 <https://www.openssl.org/source/license.html>.