"make update".

please put them back in if they're still valid, and remove others
that are outdated

the second argument to be of type ``struct sockaddr *''.

will invoke a default rule built into make.

trouble if header files are included in some "impropper" order.
It's much better if the application programmer has to specify on his
or her own if _REENTRANT shall be defined and when.

Add PBE algorithms with ciphers, not digests.

Allow ADH to be used but not present in the default cipher
list.

Allow CERTIFICATE to be used in PEM headers for PKCS#7 structures:
some CAs do this.

Make EVP_CIPHER_type() return NID_undef if the cipher has no
ASN1 OID, modify code to handle this.

library, the output buffer always is large enough, but if the tlen
parameter is there, it should be checked in the interest of clarity,
as proposed by David Sacerdote <das33@cornell.edu>.