Crypt::SSLeay::Version - Obtain OpenSSL version information

       A. Sinan Unur "<nanis@cpan.org>"

       Copyright (C) 2014 A. Sinan Unur.

       By default, the module exports nothing. You can ask for each subroutine bloew to be exported to your
       namespace.

       This program is free software; you can redistribute it and/or modify it under the terms of Artistic
       License 2.0 <http://www.perlfoundation.org/artistic_license_2_0>.

perl v5.40.0                                       2024-10-20                        Crypt::SSLeay::Version(3pm)

       Crypt::SSLeay::Version - Obtain OpenSSL version information

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

   openssl_cflags
       The compiler flags set for the compilation process in the form "compiler: ..." if available or "compiler:
       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_platform
       The "Configure" target of the library build in the form "platform: ..." if available or "platform:
       information not available" otherwise.

   openssl_version
       The version of the OpenSSL library including the release date.

   openssl_version_number
       The value of the "OPENSSL_VERSION_NUMBER" macro as an unsigned integer. This value is more like a string
       as version information is packed into specific nibbles see "crypto/opensslv.h" in the OpenSSL source and
       <https://metacpan.org/pod/OpenSSL::Versions|OpenSSL::Versions> for explanation.

       Exposes information provided by SSLeay_version <https://www.openssl.org/docs/crypto/SSLeay_version.html>.

           use Crypt::SSLeay::Version qw(\
               openssl_built_on
               openssl_cflags
               openssl_dir
               openssl_platform
               openssl_version
               openssl_version_number
           );

           my $version = openssl_version();

           if (openssl_cflags() =~ /DOPENSSL_NO_HEARTBEATS/) {
               print "OpenSSL was compiled without heartbeats\n";
           }