openssl/doc/man3/OpenSSL_version.pod
Dr. Matthias St. Pierre fc5ecaddd0 man: harmonize the various formulations in the HISTORY sections
While stereotyped repetitions are frowned upon in literature, they
serve a useful purpose in manual pages, because it is easier for
the user to find certain information if it is always presented in
the same way. For that reason, this commit harmonizes the varying
formulations in the HISTORY section about which functions, flags,
etc. were added in which OpenSSL version.

It also attempts to make the pod files more grep friendly by
avoiding to insert line breaks between the symbol names and the
corresponding version number in which they were introduced
(wherever possible). Some punctuation and typographical errors
were fixed on the way.

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7854)
2018-12-15 22:27:26 +01:00

191 lines
5.3 KiB
Text

=pod
=head1 NAME
OPENSSL_VERSION_MAJOR, OPENSSL_VERSION_MINOR, OPENSSL_VERSION_PATCH,
OPENSSL_VERSION_PRE_RELEASE, OPENSSL_VERSION_BUILD_METADATA,
OPENSSL_VERSION_PRE_RELEASE_STR, OPENSSL_VERSION_BUILD_METADATA_STR,
OPENSSL_VERSION_TEXT,
OPENSSL_version_major, OPENSSL_version_minor, OPENSSL_version_patch,
OPENSSL_version_pre_release, OPENSSL_version_build_metadata, OpenSSL_version,
OPENSSL_VERSION_NUMBER, OpenSSL_version_num
- get OpenSSL version number
=head1 SYNOPSIS
#include <openssl/opensslv.h>
#define OPENSSL_VERSION_MAJOR x
#define OPENSSL_VERSION_MINOR y
#define OPENSSL_VERSION_PATCH z
/* The definitions here are typical release values */
#undef OPENSSL_VERSION_PRE_RELEASE
#undef OPENSSL_VERSION_BUILD_METADATA
#define OPENSSL_VERSION_PRE_RELEASE_STR ""
#define OPENSSL_VERSION_BUILD_METADATA_STR ""
#define OPENSSL_VERSION_TEXT "OpenSSL x.y.z xx XXX xxxx"
unsigned int OPENSSL_version_major(void);
unsigned int OPENSSL_version_minor(void);
unsigned int OPENSSL_version_patch(void);
const char *OPENSSL_version_pre_release(void);
const char *OPENSSL_version_build_metadata(void);
#include <openssl/crypto.h>
const char *OpenSSL_version(int t);
Deprecated:
/* from openssl/opensslv.h */
#define OPENSSL_VERSION_NUMBER 0xnnnnnnnnnL
/* from openssl/crypto.h */
unsigned long OpenSSL_version_num();
=head1 DESCRIPTION
=head2 Macros
The three macros B<OPENSSL_VERSION_MAJOR>, B<OPENSSL_VERSION_MINOR> and
B<OPENSSL_VERSION_PATCH> represent the three parts of a 3 numbered version
number, MAJOR.MINOR.PATCH.
The macro B<OPENSSL_VERSION_PRE_RELEASE> is an added bit of text that,
when defined, indicates that this is a pre-release version, such as
C<"-dev"> for an ongoing development snapshot, C<"-alpha3"> for an
alpha release, etc...
The value must be a string.
The macro B<OPENSSL_VERSION_BUILD_METADATA> is extra metadata, reserved
for other parties (examples: C<"+fips">, C<"+vendor.1">).
The OpenSSL project will not touch this macro.
The value must be a string.
B<OPENSSL_VERSION_STR> is a convenience macro to get the short version
number string, "MAJOR.MINOR.PATCH".
B<OPENSSL_FULL_VERSION_STR> is a convenience macro to get the longer
version number string, which combines B<OPENSSL_VERSION_STR>,
B<OPENSSL_VERSION_PRE_RELEASE> and B<OPENSSL_VERSION_BUILD_METADATA>.
B<OPENSSL_VERSION_TEXT> is a convenience macro to get a full descriptive
version text, which includes B<OPENSSL_FULL_VERSION_STR> and the release
date.
=head2 Functions
OPENSSL_version_major(), OPENSSL_version_minor(), OPENSSL_version_patch(),
OPENSSL_version_pre_release(), and OPENSSL_version_build_metadata() return
the values of the macros above for the build of the library, respectively.
OpenSSL_version() returns different strings depending on B<t>:
=over 4
=item OPENSSL_VERSION
The value of B<OPENSSL_VERSION_TEXT>
=item OPENSSL_VERSION_STRING
The value of B<OPENSSL_VERSION_STR>
=item OPENSSL_FULL_VERSION_STRING
The value of B<OPENSSL_FULL_VERSION_STR>
=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.
=item OPENSSL_ENGINES_DIR
The "ENGINESDIR" setting of the library build in the form "ENGINESDIR: "...""
if available or "ENGINESDIR: N/A" otherwise.
=back
For an unknown B<t>, the text "not available" is returned.
=head1 BACKWARD COMPATIBILITY
For compatibility, some older macros and functions are retained or
synthesised.
They are all considered deprecated.
=head2 Macros
B<OPENSSL_VERSION_NUMBER> is a combination of the major, minor and
patch version into a single integer 0xMNN00PP0L, where:
=over 4
=item M
is the number from B<OPENSSL_VERSION_MAJOR>, in hexadecimal notation
=item NN
is the number from B<OPENSSL_VERSION_MINOR>, in hexadecimal notation
=item PP
is the number from B<OPENSSL_VERSION_PATCH>, in hexadecimal notation
=back
=head2 Functions
OpenSSL_version_num() returns the value of B<OPENSSL_VERSION_NUMBER>.
=head1 RETURN VALUES
OPENSSL_version_major(), OPENSSL_version_minor() and OPENSSL_version_patch()
return the version number parts as integers.
OPENSSL_version_pre_release() and OPENSSL_version_build_metadata() return
the values of B<OPENSSL_VERSION_PRE_RELEASE> and
B<OPENSSL_VERSION_BUILD_METADATA> respectively as constant strings.
For any of them that is undefined, the empty string is returned.
OpenSSL_version() returns constant strings.
=head1 SEE ALSO
L<crypto(7)>
=head1 HISTORY
The macros and functions described here were added in OpenSSL 3.0.0,
with the exception of the L</BACKWARD COMPATIBILITY> ones.
=head1 COPYRIGHT
Copyright 2018 The OpenSSL Project Authors. All Rights Reserved.
Licensed under the Apache License 2.0 (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