* configure.ac: Check for readline. Make enable-card-support the
default. New option --without-readline. Allow the use of either
the development or the stable libusb.
* cardglue.h: Add members for CA fingerprints.
* cardglue.c (agent_release_card_info): Invalid them.
(learn_status_cb): Store them.
* app-common.h, app-openpgp.c, iso7816.c, iso7816.h
* apdu.c, apdu.h, ccid-driver.c, ccid-driver.h
* card-util.c: Updated from current gnupg-1.9.
* ccid-driver.h (CCID_DRIVER_ERR_ABORTED): New.
* ccid-driver.c (ccid_open_reader): Support the stable 0.1 version
of libusb.
(ccid_get_atr): Handle short messages.
* apdu.c (my_rapdu_get_status): Implemented.
* apdu.c: Include <signal.h>.
* apdu.c (reader_table_s): Add function pointers for the backends.
(apdu_close_reader, apdu_get_status, apdu_activate)
(send_apdu): Make use of them.
(new_reader_slot): Intialize them to NULL.
(dump_ccid_reader_status, ct_dump_reader_status): New.
(dump_pcsc_reader_status): New.
(open_ct_reader, open_pcsc_reader, open_ccid_reader)
(open_osc_reader, open_rapdu_reader): Intialize function pointers.
(ct_activate_card, ct_send_apdu, pcsc_send_apdu, osc_send_apdu)
(error_string): Removed. Replaced by apdu_strerror.
(get_ccid_error_string): Removed.
(ct_activate_card): Remove the unused loop.
(reset_ct_reader): Implemented.
(ct_send_apdu): Activate the card if not yet done.
(pcsc_send_apdu): Ditto.
* ccid-driver.h: Add error codes.
* ccid-driver.c: Implement more or less proper error codes all
over the place.
* apdu.c (apdu_send_direct): New.
(get_ccid_error_string): Add some error code mappings.
(send_apdu): Pass error codes along for drivers already supporting
them.
(host_sw_string): New.
(get_ccid_error_string): Use above.
(send_apdu_ccid): Reset the reader if it has not yet been done.
(open_ccid_reader): Don't care if the ATR can't be read.
(apdu_activate_card): New.
(apdu_strerror): New.
(dump_reader_status): Only enable it with opt.VERBOSE.
* iso7816.c (map_sw): Add mappings for the new error codes.
* apdu.c (open_ct_reader, open_pcsc_reader, open_ccid_reader)
(reset_ccid_reader, open_osc_reader): Call dump_reader_status only
in verbose mode.
* app-openpgp.c (do_getattr): Fix for sending CA-FPR.
* app-openpgp.c (app_openpgp_readkey): Fixed check for valid
exponent.
* app-openpgp.c (do_setattr): Sync FORCE_CHV1.
* card-util.c (change_login): Kludge to allow reading data from a
file.
(card_edit): Pass ARG_STRING to change_login.
(card_status): Print CA fingerprints.
(change_cafpr): New.
(card_edit): New command CAFPR.
* errors.h (G10ERR_NO_CARD, G10ERR_CANCELED): New error codes.
* errors.c (g10_errstr): New error codes G10ERR_NO_CARD,
G10ERR_CANCELED.
simple-gettext.c, errors.c, http.c, memory.c, secmem.c, ttyio.c: Edit all
preprocessor instructions to remove whitespace before the '#'. This is
not required by C89, but there are some compilers out there that don't
like it.
