X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=blobdiff_plain;f=doc%2Fcrypto%2FOPENSSL_VERSION_NUMBER.pod;h=c39ac35e78ae60702e916dc9c51674b0a4049ece;hp=c8d9e86830576dbaa23abc7de1c8941bfdb27aee;hb=8abffa4a73fcbf6536e0a42d736ed9211a8204ea;hpb=9f7b1b24e2a94efbe2cdf61ed614780f72d67899

diff --git a/doc/crypto/OPENSSL_VERSION_NUMBER.pod b/doc/crypto/OPENSSL_VERSION_NUMBER.pod
index c8d9e86830..c39ac35e78 100644
--- a/doc/crypto/OPENSSL_VERSION_NUMBER.pod
+++ b/doc/crypto/OPENSSL_VERSION_NUMBER.pod
@@ -2,7 +2,7 @@
 
 =head1 NAME
 
-OPENSSL_VERSION_NUMBER, SSLeay - Get OpenSSL version number
+OPENSSL_VERSION_NUMBER, SSLeay, SSLeay_version - get OpenSSL version number
 
 =head1 SYNOPSIS
 
@@ -11,11 +11,27 @@ OPENSSL_VERSION_NUMBER, SSLeay - Get OpenSSL version number
 
  #include <openssl/crypto.h>
  long SSLeay(void);
+ const char *SSLeay_version(int t);
 
 =head1 DESCRIPTION
 
 OPENSSL_VERSION_NUMBER is a numeric release version identifier:
 
+ MMNNFFPPS: 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
@@ -23,13 +39,51 @@ for example
  0x000904100 == 0.9.4 release
  0x000905000 == 0.9.5 dev
 
-Versions prior to 0.9.3 have identifiers E<lt> 0x0930.
+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, SSLEAY_VERSION_NUMBER is also defined.
 
 SSLeay() returns this number. The return value can be compared to the
 macro to make sure that the correct version of the library has been
 loaded, especially when using DLLs on Windows systems.
 
+SSLeay_version() returns different strings depending on B<t>:
+
+=over 4
+
+=item SSLEAY_VERSION
+
+The text variant of the version number and the release date.  For example,
+"OpenSSL 0.9.5a 1 Apr 2000".
+
+=item SSLEAY_CFLAGS
+
+The compiler flags set for the compilation process in the form
+"compiler: ..."  if available or "compiler: information not available"
+otherwise.
+
+=item SSLEAY_BUILT_ON
+
+The date of the build process in the form "built on: ..." if available
+or "built on: date not available" otherwise.
+
+=item SSLEAY_PLATFORM
+
+The "Configure" target of the library build in the form "platform: ..."
+if available or "platform: information not available" otherwise.
+
+=item SSLEAY_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.
@@ -42,5 +96,6 @@ L<crypto(3)|crypto(3)>
 
 SSLeay() and SSLEAY_VERSION_NUMBER are available in all versions of SSLeay and OpenSSL.
 OPENSSL_VERSION_NUMBER is available in all versions of OpenSSL.
+B<SSLEAY_DIR> was added in OpenSSL 0.9.7.
 
 =cut