1=pod 2 3=head1 NAME 4 5OPENSSL_VERSION_NUMBER, SSLeay, SSLeay_version - get OpenSSL version number 6 7=head1 SYNOPSIS 8 9 #include <openssl/opensslv.h> 10 #define OPENSSL_VERSION_NUMBER 0xnnnnnnnnnL 11 12 #include <openssl/crypto.h> 13 long SSLeay(void); 14 const char *SSLeay_version(int t); 15 16=head1 DESCRIPTION 17 18OPENSSL_VERSION_NUMBER is a numeric release version identifier: 19 20 MMNNFFPPS: major minor fix patch status 21 22The status nibble has one of the values 0 for development, 1 to e for betas 231 to 14, and f for release. 24 25for example 26 27 0x000906000 == 0.9.6 dev 28 0x000906023 == 0.9.6b beta 3 29 0x00090605f == 0.9.6e release 30 31Versions prior to 0.9.3 have identifiers E<lt> 0x0930. 32Versions between 0.9.3 and 0.9.5 had a version identifier with this 33interpretation: 34 35 MMNNFFRBB major minor fix final beta/patch 36 37for example 38 39 0x000904100 == 0.9.4 release 40 0x000905000 == 0.9.5 dev 41 42Version 0.9.5a had an interim interpretation that is like the current one, 43except the patch level got the highest bit set, to keep continuity. The 44number was therefore 0x0090581f. 45 46 47For backward compatibility, SSLEAY_VERSION_NUMBER is also defined. 48 49SSLeay() returns this number. The return value can be compared to the 50macro to make sure that the correct version of the library has been 51loaded, especially when using DLLs on Windows systems. 52 53SSLeay_version() returns different strings depending on B<t>: 54 55=over 4 56 57=item SSLEAY_VERSION 58 59The text variant of the version number and the release date. For example, 60"OpenSSL 0.9.5a 1 Apr 2000". 61 62=item SSLEAY_CFLAGS 63 64The compiler flags set for the compilation process in the form 65"compiler: ..." if available or "compiler: information not available" 66otherwise. 67 68=item SSLEAY_BUILT_ON 69 70The date of the build process in the form "built on: ..." if available 71or "built on: date not available" otherwise. 72 73=item SSLEAY_PLATFORM 74 75The "Configure" target of the library build in the form "platform: ..." 76if available or "platform: information not available" otherwise. 77 78=item SSLEAY_DIR 79 80The "OPENSSLDIR" setting of the library build in the form "OPENSSLDIR: "..."" 81if available or "OPENSSLDIR: N/A" otherwise. 82 83=back 84 85For an unknown B<t>, the text "not available" is returned. 86 87=head1 RETURN VALUE 88 89The version number. 90 91=head1 SEE ALSO 92 93L<crypto(3)|crypto(3)> 94 95=head1 HISTORY 96 97SSLeay() and SSLEAY_VERSION_NUMBER are available in all versions of SSLeay and OpenSSL. 98OPENSSL_VERSION_NUMBER is available in all versions of OpenSSL. 99B<SSLEAY_DIR> was added in OpenSSL 0.9.7. 100 101=cut 102