(do_sign): Call it.
* iso7816.c (iso7816_manage_security_env): Allow passing DATA as
NULL to indicate an empty Lc.
* tlv.c (find_tlv): Check that a found object fits into the
buffer.
(find_tlv_unchecked): New as replacement for the old non-checking
variant.
* app.c (select_application): Keep on using the non-checking
variant.
* app-openpgp.c (get_one_do, dump_all_do): Ditto.
* acinclude.m4: Ditto.
* scdaemon.texi: Removed OpenSC specific options.
* app-p15.c: New. Basic support for pkcs15 cards without OpenSC.
There are quite a couple of things missing but at least I can use
my old TCOS cards from the Aegypten-1 development for signing.
* app.c (select_application): Detect pkcs15 applications.
* Makefile.am (scdaemon_SOURCES): Removed card.c, card-common.h
and card-p15.c because they are now obsolete. Added app-p15.c.
Removed all OpenSC stuff.
* command.c (do_reset, open_card, cmd_serialno, cmd_learn)
(cmd_readcert, cmd_readkey, cmd_pksign, cmd_pkdecrypt): Removed
all special cases for the old card.c based mechanisms.
* scdaemon.c, apdu.c: Removed all special cases for OpenSC.
