OPENSSL_VERSION_NUMBER(3)OPENSSL_VERSION_NUMBER(3)NAME
OPENSSL_VERSION_NUMBER, SSLeay, SSLeay_version - Get OpenSSL version
number
SYNOPSIS
#include <openssl/opensslv.h> #define OPENSSL_VERSION_NUMBER
0xnnnnnnnnnL
#include <openssl/crypto.h>
long SSLeay(
void ); const char *SSLeay_version(
int t );
DESCRIPTION
OPENSSL_VERSION_NUMBER is a numeric release version identifier: MMNNFF‐
PPS: 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
Examples are:
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 continu‐
ity. The number was therefore 0x0090581f.
For backward compatibility, SSLEAY_VERSION_NUMBER is also defined.
The SSLeay() function returns this number. The return value can be com‐
pared to the macro to make sure that the correct version of the library
has been loaded, especially when using DLLs on Windows systems.
The SSLeay_version() function returns different strings depending on t:
SSLEAY_VERSION
The text variant of the version number and the release date.
For example, OpenSSL 0.9.5a 1 Apr 2000 SSLEAY_CFLAGS
The compiler flags set for the compilation process in the form
"compiler:..." if available, or "compiler: information not
available" otherwise. SSLEAY_BUILT_ON
The date of the build process in the form "built on: ..." if
available, or "built on: date not available" otherwise.
SSLEAY_PLATFORM
The "Configure: target of the library build in the form "plat‐
form: ..." if available, or "platform: information not avail‐
able" otherwise.
For an unknown t, the text not available is returned.
RETURN VALUE
The version number.
HISTORY
The SSLeay() and SSLEAY_VERSION_NUMBER() functions are available in all
versions of SSLeay and OpenSSL. The OPENSSL_VERSION_NUMBER() is avail‐
able in all versions of OpenSSL.
SEE ALSO
Functions: crypto(3)OPENSSL_VERSION_NUMBER(3)