Fix crahses and leaks in pkcs12 utility -chain option

Make it possible to load keys from stdin, and restore that
functionality in the programs that had that before.
Part fo PR 164

Potential memory leak removed. Notified by <threaded@totalise.co.uk>

Fix new -aes command argument handling

Config code updates.

CONF_modules_unload() now calls CONF_modules_finish()
automatically.

Default use of section openssl_conf moved to
CONF_modules_load()

Load conf

Config code updates.

CONF_modules_unload() now calls CONF_modules_finish()
automatically.

Default use of section openssl_conf moved to
CONF_modules_load()

Load config file in several openssl utilities.

Most utilities now load modules from the config file,
though in a few (such as version) this isn't done
because it couldn't be used for anything.

In the case of ca and req the config file used is
the same as the utility itself: that is the -config
command line option can be used to specify an
alternative file.

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Add AES support in the applications that support -des and -des3.

Change pkcs12 so the certificates coming from -in do not get tossed if
-certfile is given as well.

Reduce the header dependencies on engine.h in apps/.

Make the necessary changes to work with the recent "ex_data" overhaul.
See the commit log message for that for more information.

NB: X509_STORE_CTX's use of "ex_data" support was actuall

Make the necessary changes to work with the recent "ex_data" overhaul.
See the commit log message for that for more information.

NB: X509_STORE_CTX's use of "ex_data" support was actually misimplemented
(initialisation by "memset" won't/can't/doesn't work). This fixes that but
requires that X509_STORE_CTX_init() be able to handle errors - so its
prototype has been changed to return 'int' rather than 'void'. All uses of
that function throughout the source code have been tracked down and
adjusted.

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Make better use of load_cert, load_certs and load_key.

Provide an application-common setup function for engines and use it
everywhere.

Add support for MS CSP Name PKCS#12 attribute.

Change the EVP_somecipher() and EVP_somedigest()
functions to return constant EVP_MD and EVP_CIPHER
pointers.

Update docs.

Use new-style system-id macros everywhere possible. I hope I haven't
missed any.

This compiles and runs on Linux, and external applications have no
problems with it. The definite t

Use new-style system-id macros everywhere possible. I hope I haven't
missed any.

This compiles and runs on Linux, and external applications have no
problems with it. The definite test will be to build this on VMS.

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Make all configuration macros available for application by making
sure they are available in opensslconf.h, by giving them names starting
with "OPENSSL_" to avoid conflicts with other package

Make all configuration macros available for application by making
sure they are available in opensslconf.h, by giving them names starting
with "OPENSSL_" to avoid conflicts with other packages and by making
sure e_os2.h will cover all platform-specific cases together with
opensslconf.h.

I've checked fairly well that nothing breaks with this (apart from
external software that will adapt if they have used something like
NO_KRB5), but I can't guarantee it completely, so a review of this
change would be a good thing.

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Rewrite PKCS#12 code and remove some of the old
horrible macros.

Fix two evil ASN1 bugs. Attempt to use 'ctx' when
NULL if input is indefinite length constructed
in asn1_check_tl

Rewrite PKCS#12 code and remove some of the old
horrible macros.

Fix two evil ASN1 bugs. Attempt to use 'ctx' when
NULL if input is indefinite length constructed
in asn1_check_tlen() and invalid pointer to ASN1_TYPE
when reusing existing structure (this took *ages* to
find because the new PKCS#12 code triggered it).

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Merge the engine branch into the main trunk. All conflicts resolved.
At the same time, add VMS support for Rijndael.

On VMS, stdout may very well lead to a file that is written to in a
record-oriented fashion. That means that every write() will write a
separate record, which will be read separately by the

On VMS, stdout may very well lead to a file that is written to in a
record-oriented fashion. That means that every write() will write a
separate record, which will be read separately by the programs trying
to read from it. This can be very confusing.

The solution is to put a BIO filter in the way that will buffer text
until a linefeed is reached, and then write everything a line at a
time, so every record written will be an actual line, not chunks of
lines and not (usually doesn't happen, but I've seen it once) several
lines in one record. Voila, BIO_f_linebuffer() is born.

Since we're so close to release time, I'm making this VMS-only for
now, just to make sure no code is needlessly broken by this. After
the release, this BIO method will be enabled on all other platforms as
well.

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Fix a typo in apps/pkcs12.c which was using the wrong part of
ASN1_TYPE (though they are both ASN1_STRING so it didn't cause
any problems).

Make 'siglen' an int in apps/dgst.c so we

Fix a typo in apps/pkcs12.c which was using the wrong part of
ASN1_TYPE (though they are both ASN1_STRING so it didn't cause
any problems).

Make 'siglen' an int in apps/dgst.c so we can check the return
value of BIO_read() etc.

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Use sk_*_new_null() instead of sk_*_new(NULL), since that takes care
of complaints from the compiler about data pointers and function
pointers not being compatible with each other.

Various fixes...

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

Various fixes...

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.

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Memory leaks fix. It now looks like all memory leaks, at least around
building complete chains, are gone.

Memory leaks fix. There seems to be more in other parts of OpenSSL...

The pkcs12 had no way of getting a CA file or path to be used when
building a complete chain. Now added through the -CAfile and -CApath
arguments.

Undo the changes I just made. I'm not sure what I was thinking of.
The message to everyone is "Do not hack OpenSSL when stressed"...