doc/man3/OpenSSL_version.pod - third_party/openssl - Git at Google

 =pod

 =head1 NAME

 OPENSSL_VERSION_MAJOR, OPENSSL_VERSION_MINOR, OPENSSL_VERSION_PATCH,
 OPENSSL_VERSION_PRE_RELEASE, OPENSSL_VERSION_BUILD_METADATA,
 OPENSSL_VERSION_TEXT, OPENSSL_VERSION_PREREQ, 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, OPENSSL_info
 - get OpenSSL version number and other information

 =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 */
  #define OPENSSL_VERSION_PRE_RELEASE ""
  #define OPENSSL_VERSION_BUILD_METADATA ""

  #define OPENSSL_VERSION_TEXT "OpenSSL x.y.z xx XXX xxxx"

  #define OPENSSL_VERSION_PREREQ(maj,min)

  #include <openssl/crypto.h>

  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);

  const char *OpenSSL_version(int t);

  const char *OPENSSL_info(int t);

  /* from openssl/opensslv.h */
  #define OPENSSL_VERSION_NUMBER 0xnnnnnnnnL

  /* 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 version
 identifier, B<I<MAJOR>.I<MINOR>.I<PATCH>>.

 The macro B<OPENSSL_VERSION_PRE_RELEASE> is an added bit of text that
 indicates that this is a pre-release version, such as C<"-dev"> for an
 ongoing development snapshot or C<"-alpha3"> for an alpha release.
 The value must be a string.

 The macro B<OPENSSL_VERSION_BUILD_METADATA> is extra information, reserved
 for other parties, such as C<"+fips">, or C<"+vendor.1">).
 The OpenSSL project will not touch this macro (will leave it an empty string).
 The value must be a string.

 B<OPENSSL_VERSION_STR> is a convenience macro to get the short version
 identifier string, C<"I<MAJOR>.I<MINOR>.I<PATCH>">.

 B<OPENSSL_FULL_VERSION_STR> is a convenience macro to get the longer
 version identifier 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.

 B<OPENSSL_VERSION_PREREQ> is a useful macro for checking whether the OpenSSL
 version for the headers in use is at least at the given pre-requisite major
 (B<maj>) and minor (B<min>) number or not. It will evaluate to true if the
 header version number (B<OPENSSL_VERSION_MAJOR>.B<OPENSSL_VERSION_MINOR>) is
 greater than or equal to B<maj>.B<min>.

 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_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 I<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
 C<compiler: ...>  if available, or C<compiler: information not available>
 otherwise.

 =item OPENSSL_BUILT_ON

 The date of the build process in the form C<built on: ...> if available
 or C<built on: date not available> otherwise.
 The date would not be available in a reproducible build, for example.

 =item OPENSSL_PLATFORM

 The "Configure" target of the library build in the form C<platform: ...>
 if available, or C<platform: information not available> otherwise.

 =item OPENSSL_DIR

 The B<OPENSSLDIR> setting of the library build in the form C<OPENSSLDIR: "...">
 if available, or C<OPENSSLDIR: N/A> otherwise.

 =item OPENSSL_ENGINES_DIR

 The B<ENGINESDIR> setting of the library build in the form C<ENGINESDIR: "...">
 if available, or C<ENGINESDIR: N/A> otherwise. This option is deprecated in
 OpenSSL 3.0.

 =item OPENSSL_MODULES_DIR

 The B<MODULESDIR> setting of the library build in the form C<MODULESDIR: "...">
 if available, or C<MODULESDIR: N/A> otherwise.

 =item OPENSSL_CPU_INFO

 The current OpenSSL cpu settings.
 This is the current setting of the cpu capability flags. It is usually
 automatically configured but may be set via an environment variable.
 The value has the same syntax as the environment variable.
 For x86 the string looks like C<CPUINFO: OPENSSL_ia32cap=0x123:0x456>
 or C<CPUINFO: N/A> if not available.

 =back

 For an unknown I<t>, the text C<not available> is returned.

 OPENSSL_info() also returns different strings depending on I<t>:

 =over 4

 =item OPENSSL_INFO_CONFIG_DIR

 The configured C<OPENSSLDIR>, which is the default location for
 OpenSSL configuration files.

 =item OPENSSL_INFO_ENGINES_DIR

 The configured C<ENGINESDIR>, which is the default location for
 OpenSSL engines.

 =item OPENSSL_INFO_MODULES_DIR

 The configured C<MODULESDIR>, which is the default location for
 dynamically loadable OpenSSL modules other than engines.

 =item OPENSSL_INFO_DSO_EXTENSION

 The configured dynamically loadable module extension.

 =item OPENSSL_INFO_DIR_FILENAME_SEPARATOR

 The separator between a directory specification and a filename.
 Note that on some operating systems, this is not the same as the
 separator between directory elements.

 =item OPENSSL_INFO_LIST_SEPARATOR

 The OpenSSL list separator.
 This is typically used in strings that are lists of items, such as the
 value of the environment variable C<$PATH> on Unix (where the
 separator is C<:>) or C<%PATH%> on Windows (where the separator is
 C<;>).

 =item OPENSSL_INFO_CPU_SETTINGS

 The current OpenSSL cpu settings.
 This is the current setting of the cpu capability flags. It is usually
 automatically configured but may be set via an environment variable.
 The value has the same syntax as the environment variable.
 For x86 the string looks like C<OPENSSL_ia32cap=0x123:0x456>.

 =back

 For an unknown I<t>, NULL is returned.

 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,
 except for OPENSSL_VERSION_NUMBER and OpenSSL_version_num().

 =head1 COPYRIGHT

 Copyright 2018-2021 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
	=pod

	=head1 NAME

	OPENSSL_VERSION_MAJOR, OPENSSL_VERSION_MINOR, OPENSSL_VERSION_PATCH,
	OPENSSL_VERSION_PRE_RELEASE, OPENSSL_VERSION_BUILD_METADATA,
	OPENSSL_VERSION_TEXT, OPENSSL_VERSION_PREREQ, 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, OPENSSL_info
	- get OpenSSL version number and other information

	=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 */
	#define OPENSSL_VERSION_PRE_RELEASE ""
	#define OPENSSL_VERSION_BUILD_METADATA ""

	#define OPENSSL_VERSION_TEXT "OpenSSL x.y.z xx XXX xxxx"

	#define OPENSSL_VERSION_PREREQ(maj,min)

	#include <openssl/crypto.h>

	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);

	const char *OpenSSL_version(int t);

	const char *OPENSSL_info(int t);

	/* from openssl/opensslv.h */
	#define OPENSSL_VERSION_NUMBER 0xnnnnnnnnL

	/* 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 version
	identifier, B<I<MAJOR>.I<MINOR>.I<PATCH>>.

	The macro B<OPENSSL_VERSION_PRE_RELEASE> is an added bit of text that
	indicates that this is a pre-release version, such as C<"-dev"> for an
	ongoing development snapshot or C<"-alpha3"> for an alpha release.
	The value must be a string.

	The macro B<OPENSSL_VERSION_BUILD_METADATA> is extra information, reserved
	for other parties, such as C<"+fips">, or C<"+vendor.1">).
	The OpenSSL project will not touch this macro (will leave it an empty string).
	The value must be a string.

	B<OPENSSL_VERSION_STR> is a convenience macro to get the short version
	identifier string, C<"I<MAJOR>.I<MINOR>.I<PATCH>">.

	B<OPENSSL_FULL_VERSION_STR> is a convenience macro to get the longer
	version identifier 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.

	B<OPENSSL_VERSION_PREREQ> is a useful macro for checking whether the OpenSSL
	version for the headers in use is at least at the given pre-requisite major
	(B<maj>) and minor (B<min>) number or not. It will evaluate to true if the
	header version number (B<OPENSSL_VERSION_MAJOR>.B<OPENSSL_VERSION_MINOR>) is
	greater than or equal to B<maj>.B<min>.

	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_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 I<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
	C<compiler: ...> if available, or C<compiler: information not available>
	otherwise.

	=item OPENSSL_BUILT_ON

	The date of the build process in the form C<built on: ...> if available
	or C<built on: date not available> otherwise.
	The date would not be available in a reproducible build, for example.

	=item OPENSSL_PLATFORM

	The "Configure" target of the library build in the form C<platform: ...>
	if available, or C<platform: information not available> otherwise.

	=item OPENSSL_DIR

	The B<OPENSSLDIR> setting of the library build in the form C<OPENSSLDIR: "...">
	if available, or C<OPENSSLDIR: N/A> otherwise.

	=item OPENSSL_ENGINES_DIR

	The B<ENGINESDIR> setting of the library build in the form C<ENGINESDIR: "...">
	if available, or C<ENGINESDIR: N/A> otherwise. This option is deprecated in
	OpenSSL 3.0.

	=item OPENSSL_MODULES_DIR

	The B<MODULESDIR> setting of the library build in the form C<MODULESDIR: "...">
	if available, or C<MODULESDIR: N/A> otherwise.

	=item OPENSSL_CPU_INFO

	The current OpenSSL cpu settings.
	This is the current setting of the cpu capability flags. It is usually
	automatically configured but may be set via an environment variable.
	The value has the same syntax as the environment variable.
	For x86 the string looks like C<CPUINFO: OPENSSL_ia32cap=0x123:0x456>
	or C<CPUINFO: N/A> if not available.

	=back

	For an unknown I<t>, the text C<not available> is returned.

	OPENSSL_info() also returns different strings depending on I<t>:

	=over 4

	=item OPENSSL_INFO_CONFIG_DIR

	The configured C<OPENSSLDIR>, which is the default location for
	OpenSSL configuration files.

	=item OPENSSL_INFO_ENGINES_DIR

	The configured C<ENGINESDIR>, which is the default location for
	OpenSSL engines.

	=item OPENSSL_INFO_MODULES_DIR

	The configured C<MODULESDIR>, which is the default location for
	dynamically loadable OpenSSL modules other than engines.

	=item OPENSSL_INFO_DSO_EXTENSION

	The configured dynamically loadable module extension.

	=item OPENSSL_INFO_DIR_FILENAME_SEPARATOR

	The separator between a directory specification and a filename.
	Note that on some operating systems, this is not the same as the
	separator between directory elements.

	=item OPENSSL_INFO_LIST_SEPARATOR

	The OpenSSL list separator.
	This is typically used in strings that are lists of items, such as the
	value of the environment variable C<$PATH> on Unix (where the
	separator is C<:>) or C<%PATH%> on Windows (where the separator is
	C<;>).

	=item OPENSSL_INFO_CPU_SETTINGS

	The current OpenSSL cpu settings.
	This is the current setting of the cpu capability flags. It is usually
	automatically configured but may be set via an environment variable.
	The value has the same syntax as the environment variable.
	For x86 the string looks like C<OPENSSL_ia32cap=0x123:0x456>.

	=back

	For an unknown I<t>, NULL is returned.

	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,
	except for OPENSSL_VERSION_NUMBER and OpenSSL_version_num().

	=head1 COPYRIGHT

	Copyright 2018-2021 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