The old code was painfully primitive and couldn't handle
distinct certificates using the same subject name.
The new code performs several tests on a candidate issuer
certificate based on certificate extensions.
It also adds several callbacks to X509_VERIFY_CTX so its
behaviour can be customised.
Unfortunately some hackery was needed to persuade X509_STORE
to tolerate this. This should go away when X509_STORE is
replaced, sometime...
This must have broken something though :-(
initialize ex_pathlen to -1 so it isn't checked if pathlen
is not present.
set ucert to NULL in apps/pkcs12.c otherwise it gets freed
twice.
remove extraneous '\r' in MIME encoder.
Allow a NULL to be passed to X509_gmtime_adj()
Make PKCS#7 code use definite length encoding rather then
the indefinite stuff it used previously.
like Malloc, Realloc and especially Free conflict with already existing names
on some operating systems or other packages. That is reason enough to change
the names of the OpenSSL memory allocation macros to something that has a
better chance of being unique, like prepending them with OPENSSL_.
This change includes all the name changes needed throughout all C files.
