+
+=head1 HEADER FILES
+
+Currently the OpenSSL B<ssl> library provides the following C header files
+containing the prototypes for the data structures and and functions:
+
+=over 4
+
+=item B<ssl.h>
+
+That's the common header file for the SSL/TLS API. Include it into your
+program to make the API of the B<ssl> library available. It internally
+includes both more private SSL headers and headers from the B<crypto> library.
+Whenever you need hard-core details on the internals of the SSL API, look
+inside this header file.
+
+=item B<ssl2.h>
+
+That's the sub header file dealing with the SSLv2 protocol only.
+I<Usually you don't have to include it explicitly because
+it's already included by ssl.h>.
+
+=item B<ssl3.h>
+
+That's the sub header file dealing with the SSLv3 protocol only.
+I<Usually you don't have to include it explicitly because
+it's already included by ssl.h>.
+
+=item B<ssl23.h>
+
+That's the sub header file dealing with the combined use of the SSLv2 and
+SSLv3 protocols.
+I<Usually you don't have to include it explicitly because
+it's already included by ssl.h>.
+
+=item B<tls1.h>
+
+That's the sub header file dealing with the TLSv1 protocol only.
+I<Usually you don't have to include it explicitly because
+it's already included by ssl.h>.
+
+=back
+