openssl/doc/crypto/OPENSSL_VERSION_NUMBER.pod
Rich Salz a528d4f0a9 Remove SSLeay history, etc., from docs
If something was "present in all versions" of SSLeay, or if it was
added to a version of SSLeay (and therefore predates OpenSSL),
remove mention of it.  Documentation history now starts with OpenSSL.

Remove mention of all history before OpenSSL 0.9.8, inclusive.

Remove all AUTHOR sections.

Reviewed-by: Tim Hudson <tjh@openssl.org>
2015-10-28 17:23:51 -04:00

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=pod
=head1 NAME
OPENSSL_VERSION_NUMBER, OpenSSL_version - get OpenSSL version number
=head1 SYNOPSIS
#include <openssl/opensslv.h>
#define OPENSSL_VERSION_NUMBER 0xnnnnnnnnnL
#include <openssl/crypto.h>
const char *OpenSSL_version(int t);
=head1 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 E<lt> 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.
For backward compatibility, OPENSSL_VERSION_NUMBER is also defined.
OpenSSL_version() returns different strings depending on B<t>:
=over 4
=item OPENSSL_VERSION
The text variant of the version number and the release date. For example,
"OpenSSL 1.0.1a 15 Oct 2015".
=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.
=item OPENSSL_PLATFORM
The "Configure" target of the library build in the form "platform: ..."
if available or "platform: information not available" otherwise.
=item OPENSSL_DIR
The "OPENSSLDIR" setting of the library build in the form "OPENSSLDIR: "...""
if available or "OPENSSLDIR: N/A" otherwise.
=back
For an unknown B<t>, the text "not available" is returned.
=head1 RETURN VALUE
The version number.
=head1 SEE ALSO
L<crypto(3)>
=cut