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* agent: Make --allow-loopback-pinentry gpgconf changeable.Werner Koch2015-01-041-1/+3
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* scd: ECDH Support.NIIBE Yutaka2014-12-221-10/+38
| | | | | | | | | | | | | | | | * agent/divert-scd.c (divert_pkdecrypt): Support ECDH. * scd/app-openpgp.c (get_algo_byte, store_fpr): Support ECDH. (send_key_attr): Support ECDH. Fix EdDSA algorithm value. (retrieve_key_material): Initialize fields. (get_public_key, ecc_writekey, do_writekey): Support ECDH. (ecdh_writekey): Remove. (do_decipher): Support ECDH. (parse_algorithm_attribute): Support ECDH. Fix EdDSA. -- Following the gpg-agent protocol, SCDaemon's counter part is now implemented.
* agent: Make sure --max-cache-ttl is >= --default-cache-ttl.Werner Koch2014-12-191-0/+17
| | | | | | | | | | * agent/gpg-agent.c (finalize_rereadable_options): New. (main, reread_configuration): Call it. -- This change should help to avoid surprising behaviour. Signed-off-by: Werner Koch <[email protected]>
* agent: Keep the session environment for restricted connections.Werner Koch2014-12-194-34/+42
| | | | | | | | | | | | | | | | | * agent/command-ssh.c (setup_ssh_env): Move code to ... * agent/gpg-agent.c (agent_copy_startup_env): .. new function. Change calllers. * agent/command.c (start_command_handler): Call that fucntion for restricted connections. -- A remote connection is and should not be able to setup the local session environment. However, unless --keep-display is used we would be left without an environment and thus pinentry can't be used. The fix is the same as used for ssh-agent connection: We use the default environment as used at the startup of the agent. Signed-off-by: Werner Koch <[email protected]>
* agent: Fix string prepended to remotely initiated prompts.Werner Koch2014-12-191-1/+1
| | | | | | | * agent/command.c (cmd_setkeydesc): Use %0A and not \n. Make translatable. Signed-off-by: Werner Koch <[email protected]>
* gpg: Let --card--status create a shadow key (card key stub).Werner Koch2014-12-123-12/+17
| | | | | | | | | | | | | | | | | | * agent/command.c (cmd_learn): Add option --sendinfo. * agent/learncard.c (agent_handle_learn): Add arg "send" andsend certifciate only if that is set. * g10/call-agent.c (agent_scd_learn): Use --sendinfo. Make INFO optional. (agent_learn): Remove. * g10/keygen.c (gen_card_key): Replace agent_learn by agent_scd_learn. -- The requirement of using --card-status on the first use of card on a new box is a bit annoying but the alternative of always checking whether a card is available before a decryption starts does not sound promising either. Signed-off-by: Werner Koch <[email protected]>
* agent: Replace some sprintf.Werner Koch2014-12-023-18/+8
| | | | | | | | | * agent/call-scd.c (agent_card_pksign): Replace sprintf by bin2hex. * agent/command-ssh.c (ssh_identity_register): Ditto. * agent/pkdecrypt.c (agent_pkdecrypt): Replace sprintf by put_membuf_printf. Signed-off-by: Werner Koch <[email protected]>
* scd: Implement socket redirection.Werner Koch2014-12-011-2/+2
| | | | | | | | | | | | * scd/scdaemon.c (ENAMETOOLONG): New. (redir_socket_name): New. (cleanup): Take care of a redirected socket. (main): Pass redir_socket_name to create_server_socket. (create_socket_name): Remove superfluous length check. (create_server_socket): Add arg r_redir_name and implement redirection. Replace assert for older Assuan by an error message. Signed-off-by: Werner Koch <[email protected]>
* agent: Fix compile problem for old Libassuan.Werner Koch2014-12-011-1/+0
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* agent: Implement socket redirection.Werner Koch2014-11-281-38/+86
| | | | | | | | | | | * agent/gpg-agent.c (ENAMETOOLONG): New. (redir_socket_name, redir_socket_name_extra) (redir_socket_name_ssh): New. (remove_socket): Take care of the redir names. (main): Pass the redir names to create_server_socket. (create_socket_name): Remove length check - that is anyway done later. (create_server_socket): Add arg r_redir_name and implement redirection if Libassuan is at least 2.14.
* gpg-agent: Add restricted connection feature.Мирослав Николић2014-11-273-142/+276
| | | | | | | | | | | | | | | | | | | | | | | * agent/agent.h (opt): Add field extra_socket. (server_control_s): Add field restricted. * agent/command.c: Check restricted flag on many commands. * agent/gpg-agent.c (oExtraSocket): New. (opts): Add option --extra-socket. (socket_name_extra): New. (cleanup): Cleanup that socket name. (main): Implement oExtraSocket. (create_socket_name): Add arg homedir and change all callers. (create_server_socket): Rename arg is_ssh to primary and change callers. (start_connection_thread): Take ctrl as arg. (start_connection_thread_std): New. (start_connection_thread_extra): New. (handle_connections): Add arg listen_fd_extra and replace the connection starting code by parameterized loop. * common/asshelp.c (start_new_gpg_agent): Detect the use of the restricted mode and don't fail on sending the pinentry environment. * common/util.h (GPG_ERR_FORBIDDEN): New.
* agent: Make auditing of the option list easier.Мирослав Николић2014-11-271-73/+81
| | | | * agent/gpg-agent.c (opts): Use ARGPARSE_ macros.
* Remove use of gnulib (part 1)Werner Koch2014-11-112-3/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * gl/: Remove entire tree. * configure.ac: Remove gnulib tests and the gl/ Makefile. (setenv): Add to AC_CHECK_FUNCS. * autogen.rc (extra_aclocal_flags): Set to empty. * Makefile.am (ACLOCAL_AMFLAGS): Remove -I gl/m4 (SUBDIRS): Remove gl/. * agent/Makefile.am (common_libs): Remove ../gl/gnulib.a * common/Makefile.am (t_common_ldadd): Ditto. * dirmngr/Makefile.am (dirmngr_LDADD): Ditto. (dirmngr_ldap_LDADD, dirmngr_client_LDADD): Ditto. * g10/Makefile.am (needed_libs): Ditto. * g13/Makefile.am (g13_LDADD): Ditto. * kbx/Makefile.am (kbxutil_LDADD): Ditto. ($(PROGRAMS)): Ditto. * scd/Makefile.am (scdaemon_LDADD): Ditto. * sm/Makefile.am (common_libs): Ditto. * tools/Makefile.am (common_libs, commonpth_libs): Ditto. * agent/gpg-agent.c: Remove "mkdtemp.h" * g10/exec.c: Ditto. * scd/scdaemon.c: Ditto. * tools/symcryptrun.c: Ditto. * common/sysutils.c: Remove "setenv.h" * common/t-timestuff.c: Use putenv if setenv is not available. -- gnulib has always been a cause of trouble in GnuPG because we used only a very few functions and the complex include machinery of gnulib is quite complex and the cause for many build problems for example on OS X. This is not gnulib's fault but due to our limited use of gnulib and that we only rarely update the gnulib code to avoid regressions. In part two we will address the functions mkdtemp setenv unsetenv strpbrk which may bot be implemented on all platforms. They are not required on a libc based system. Signed-off-by: Werner Koch <[email protected]>
* Change a couple of files to use abbreviated copyright notes.Werner Koch2014-11-046-15/+11
| | | | | | | | | -- Also fixed some of my own copyright notices due to the termination of my assignment. The one displayed by --version is kept at FSF because we had contributors in 2014 with FSF assignments and it gives the FSF some visibility.
* gpg: Avoid extra pinentries for each subkey in --export-secret-keys.Werner Koch2014-11-021-4/+26
| | | | | | | | * agent/command.c (cmd_export_key): Actually implement the cache_nonce feature. * g10/export.c (do_export_stream): Make use of a cache_nonce. Signed-off-by: Werner Koch <[email protected]>
* tests: Speed up the genkey1024.test by using not so strong random.Werner Koch2014-10-301-0/+11
| | | | | | | | | | | | | * agent/gpg-agent.c (oDebugQuickRandom): New. (opts): New option --debug-quick-random. (main): Use new option. * common/asshelp.c (start_new_gpg_agent): Add hack to pass an additional argument for the agent name. * tests/openpgp/defs.inc: Pass --debug-quick-random to the gpg-agent starting parameters. * tests/openpgp/version.test: Ditto. Signed-off-by: Werner Koch <[email protected]>
* agent: Support pinentries with integrated repeat passphrase feature.Werner Koch2014-10-244-19/+52
| | | | | | | | | | | | | | | | | | | | | | | | | | * agent/agent.h (struct pin_entry_info_s): Add fields repeat_okay and with_repeat. * agent/call-pinentry.c (close_button_status_cb): Rewrite and check for PIN_REPEAT. Change users to check only the relevant bit. (agent_askpin): Support repeat logic of new Pinentries. * agent/command-ssh.c (ssh_identity_register): Use the new repeat feature. * agent/genkey.c (agent_ask_new_passphrase): Ditto. -- If we need to confirm a passphrase entry (e.g. for new passphrase) we set a flag into the pinentry info block. The we try to use the new pinentry command SETREPEATERROR; if that fails, we continue as usual. If that succeeds we ask the pinentry to show the repeat (confirmation) prompt and on successful return we set another flag in the pinentry info block so that the caller can skip its own confirmation check. A new status line from the pinentry indicates that the feature is actually supported (it may not be supported on certain systems for example when using the ncurses backend). Signed-off-by: Werner Koch <[email protected]>
* Use a unique capitalization for "Note:".Werner Koch2014-10-101-2/+2
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* Remove support for the GPG_AGENT_INFO envvar.Werner Koch2014-10-033-188/+45
| | | | | | | | | | | | | | | | | | | | | | | | | | * agent/agent.h (opt): Remove field use_standard_socket. * agent/command.c (cmd_killagent): Always allow killing. * agent/gpg-agent.c (main): Turn --{no,}use-standard-socket and --write-env-file into dummy options. Always return true for --use-standard-socket-p. Do not print the GPG_AGENT_INFO envvar setting or set that envvar. (create_socket_name): Simplify by removing non standard socket support. (check_for_running_agent): Ditto. * common/asshelp.c (start_new_gpg_agent): Remove GPG_AGENT_INFO use. * common/simple-pwquery.c (agent_open): Ditto. * configure.ac (GPG_AGENT_INFO_NAME): Remove. * g10/server.c (gpg_server): Do not print the AgentInfo comment. * g13/server.c (g13_server): Ditto. * sm/server.c (gpgsm_server): Ditto. * tools/gpgconf.c (main): Simplify by removing non standard socket support. -- The indented fix to allow using a different socket than the one in the gnupg home directory is to change Libassuan to check whether the socket files exists as a regualr file with a special keyword to redirect to another socket file name.
* agent: Init a local variable in the error case.Werner Koch2014-09-181-1/+3
| | | | * agent/pksign.c (do_encode_md): Init HASH on error.
* agent: Remove left over debug output.Werner Koch2014-09-181-2/+0
| | | | | * agent/command-ssh.c (ssh_signature_encoder_eddsa): Remove debug output.
* agent: Silence compiler warning for a debug message.Werner Koch2014-09-181-2/+2
| | | | | * agent/call-pinentry.c (agent_query_dump_state): Use %p for POPUP_TID.
* gpg: Improve passphrase caching.Werner Koch2014-09-173-1/+71
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | * agent/cache.c (last_stored_cache_key): New. (agent_get_cache): Allow NULL for KEY. (agent_store_cache_hit): New. * agent/findkey.c (unprotect): Call new function and try to use the last stored key. * g10/revoke.c (create_revocation): Add arg CACHE_NONCE and pass to make_keysig_packet. (gen_standard_revoke): Add arg CACHE_NONCE and pass to create_revocation. * g10/keygen.c (do_generate_keypair): Call gen_standard_revoke with cache nonce. -- This patch adds two features: 1. The key for the last passphrase successfully used for unprotecting a key is stored away. On a cache miss the stored away passphrase is tried as well. This helps for the common GPG use case of having a signing and encryption (sub)key with the same passphrase. See the code for more comments. 2. The now auto-generated revocation certificate does not anymore popup a passphrase prompt. Thus for standard key generation the passphrase needs to be given only once (well, two with the confirmation).
* agent: Fix import of OpenPGP EdDSA keys.Werner Koch2014-09-021-18/+66
| | | | | | | | | | | | | | | | | | | | * agent/cvt-openpgp.c (get_keygrip): Special case EdDSA. (convert_secret_key): Ditto. (convert_transfer_key): Ditto. (apply_protection): Handle opaque MPIs. (do_unprotect): Check FLAG_OPAQUE instead of FLAG_USER1 before unpacking an opaque mpi. -- The key transfer protocol between gpg and gpg-agent uses gcrypt algorithm numbers which merge all ECC algorithms into one. Thus it is not possible to use the algorithm number to determine the EdDSA algorithm. We need to known that because Libgcrypt requires the "eddsa" flag with the curve "Ed25519" to actually use the Ed25519 signature specification. The last fix is for correctness; the first case won't be used anyway.
* agent: Allow key unprotection using AES-256.Werner Koch2014-09-011-29/+50
| | | | | | | | | | | | | | * agent/protect.c (PROT_CIPHER): Rename to GCRY_CIPHER_AES128 for clarity. (do_decryption): Add args prot_cipher and prot_cipher_keylen. USe them instead of the hardwired values. (agent_unprotect): Change to use a table of protection algorithms. Add AES-256 variant. -- This patch will make a possible future key protection algorithm changes smoother. AES-256 is also allowed although there is currently no way to encrypt using it.
* agent: Return NO_SECKEY instead of ENONET for PKSIGN and others.Werner Koch2014-08-183-5/+8
| | | | | | * agent/pksign.c (agent_pksign_do): Replace ENONET by NO_SECKEY. * agent/findkey.c (agent_key_from_file): No diagnostic for NO_SECKEY. * agent/pkdecrypt.c (agent_pkdecrypt): Replace checking for ENOENT.
* agent: Show just one warning with all failed passphrase constraints.Werner Koch2014-07-231-38/+74
| | | | | * agent/genkey.c (check_passphrase_constraints): Build a final warning after all checks.
* agent: Only one confirmation prompt for an empty passphrase.Werner Koch2014-07-231-21/+19
| | | | | * agent/genkey.c (check_passphrase_constraints): Moev empty passphrase check to the front.
* gpg: Spelling errorKristian Fiskerstrand2014-07-031-1/+1
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* agent: Adjust for changed npth_eselect under W32.Werner Koch2014-06-271-2/+1
| | | | | * agent/gpg-agent.c (handle_connections) [W32]: Make events_set an unsigned int to match the changed prototype.
* Fix typos in messagesYuri Chornoivan2014-06-271-1/+1
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* agent: Fix export of RSA keys to OpenPGP.Werner Koch2014-06-261-1/+1
| | | | | * agent/cvt-openpgp.c (convert_transfer_key): Fix sexp build format string.
* gpg: Make export of ECC keys work again.Werner Koch2014-06-201-9/+28
| | | | | | | | * agent/cvt-openpgp.c (convert_to_openpgp): Use the curve name instead of the curve parameters. * g10/export.c (canon_pubkey_algo): Rename to ... (canon_pk_algo): this. Support ECC. (transfer_format_to_openpgp): Expect curve name.
* agent: Fix import of non-protected gpg keys.Werner Koch2014-05-081-3/+9
| | | | | | | * agent/cvt-openpgp.c (do_unprotect): Return an s-exp also for non-protected keys. (convert_from_openpgp_main): Do not call agent_askpin for a non-protected key.
* Make more use of *_NAME macros.Werner Koch2014-05-081-4/+7
| | | | | | | | | * configure.ac (GPG_DISP_NAME, GPGSM_DISP_NAME): New. (GPG_AGENT_DISP_NAME, SCDAEMON_DISP_NAME): New. (DIRMNGR_DISP_NAME, G13_DISP_NAME): New. (GPGCONF_DISP_NAME): New. (SCDAEMON_SOCK_NAME): New. * common/argparse.c (show_help): Map description string.
* agent: Fix auth key comment handling.NIIBE Yutaka2014-05-081-1/+3
| | | | | * agent/command-ssh.c (ssh_send_key_public): Handle the case with no comment.
* gpg: Finish experimental support for Ed25519.Werner Koch2014-05-072-84/+102
| | | | | | | | | | | | | | | | | | | | | | | | * agent/cvt-openpgp.c (try_do_unprotect_arg_s): Add field "curve". (get_keygrip): Add and use arg CURVE. (convert_secret_key): Ditto. (convert_transfer_key): Ditto. (get_npkey_nskey): New. (prepare_unprotect): Replace gcrypt functions by get_npkey_nskey. Allow opaque MPIs. (do_unprotect): Use CURVE instead of parameters. (convert_from_openpgp_main): Ditto. (convert_to_openpgp): Simplify. * g10/import.c (one_mpi_from_pkey): Remove. (transfer_secret_keys): Rewrite to use the curve instead of the parameters. * g10/parse-packet.c (parse_key): Mark protected MPIs with USER1 flag. * common/openpgp-oid.c (openpgp_curve_to_oid): Allow the use of "NIST P-256" et al. * g10/keygen.c (ask_curve): Add arg ALGO. (generate_keypair): Rewrite the ECC key logic. * tests/openpgp/ecc.test: Provide the "ecc" passphrase.
* agent: Remove greeting message.Werner Koch2014-05-071-18/+1
| | | | | * agent/gpg-agent.c (main): Remove greeting. Make --no-greeting a dummy.
* ECC Fixes.NIIBE Yutaka2014-04-282-38/+8
| | | | | | | | | | | | | * agent/cvt-openpgp.c (get_keygrip, convert_secret_key) (convert_transfer_key): Follow newer (>= 1.6) libgcrypt API, which does not distinguish the detail. (do_unprotect, convert_from_openpgp_main): Don't call map_pk_openpgp_to_gcry, as it's the value of libgcrypt API already and not the value defined by OpenPGP. (convert_to_openpgp): It's "ecc". * agent/gpg-agent.c (map_pk_openpgp_to_gcry): Remove. * g10/call-agent.c (agent_pkdecrypt): Fix off-by-one error. * g10/pubkey-enc.c (get_it): Fix swapping the fields error.
* gpg: Pass --homedir to gpg-agent.Werner Koch2014-04-221-0/+4
| | | | | | | | | | | | | | | * agent/gpg-agent.c (main): Make sure homedir is absolute. * common/asshelp.c (lock_spawning): Create lock file with an absolute name. (start_new_gpg_agent): Use an absolute name for the socket and pass option --homedir to the agent. (start_new_dirmngr): Use an absolute name for the --homedir. -- This patch makes gpg's --homedir option behave again like in older versions. This is done by starting a new agent for each different home directory. Note that this assumes --use-standard-socket is used which is the default for 2.1.
* gpg: Fix regression in secret key export.Werner Koch2014-04-152-22/+28
| | | | | | | | | | * agent/cvt-openpgp.c (convert_to_openpgp): Fix use gcry_sexp_extract_param. * g10/export.c (do_export_stream): Provide a proper prompt to the agent. -- NB: The export needs more work, in particular the ECC algorithms.
* agent: Add command DELETE_KEY.Werner Koch2014-04-154-3/+184
| | | | | | | | | | | * agent/command.c (cmd_delete_key): New. * agent/findkey.c (modify_description): Add '%C' feature. (remove_key_file): New. (agent_delete_key): New. * agent/command-ssh.c (search_control_file): Make arg R_DISABLE optional. * configure.ac: Require libgpg-error 1.13.
* agent: Support EdDSA.NIIBE Yutaka2014-04-081-5/+16
| | | | * agent/pksign.c (agent_pksign_do): Handle EdDSA signature.
* agent: EdDSA support for SSH.NIIBE Yutaka2014-04-041-23/+7
| | | | | * agent/command-ssh.c (ssh_signature_encoder_eddsa): Signature is two 32-byte opaque data which should not be interpreted as number.
* agent: Replace es_mopen by es_fopenmem for ssh.Werner Koch2014-03-231-27/+15
| | | | | | | | | | | * agent/command-ssh.c (ssh_read_key_public_from_blob): Use es_fopenmem. (ssh_handler_request_identities): Ditto. (ssh_request_process): Ditto. -- es_fopenmem is easier to understand than the more general function es_mopen. Thus we better use the former for clarity.
* agent: Put ssh key type as comment into sshcontrol.Werner Koch2014-03-221-13/+20
| | | | | | | | * agent/command-ssh.c (ssh_key_type_spec): Add field name. (ssh_key_types): Add human readable names. (add_control_entry): Add arg SPEC and print key type as comment. (ssh_identity_register): Add arg SPEC. (ssh_handler_add_identity): Add var SPEC and pass ssh_receive_key.
* agent: Support the Ed25519 signature algorithm for ssh.Werner Koch2014-03-221-521/+761
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * agent/command-ssh.c (SPEC_FLAG_IS_EdDSA): New. (ssh_key_types): Add entry for ssh-ed25519. (ssh_identifier_from_curve_name): Move to the top. (stream_read_skip): New. (stream_read_blob): New. (ssh_signature_encoder_rsa): Replace MPIS array by an s-exp and move the s-exp parsing to here. (ssh_signature_encoder_dsa): Ditto. (ssh_signature_encoder_ecdsa): Ditto. (ssh_signature_encoder_eddsa): New. (sexp_key_construct): Rewrite. (ssh_key_extract): Rename to ... (ssh_key_to_blob): .. this and rewrite most of it. (ssh_receive_key): Add case for EdDSA. (ssh_convert_key_to_blob, key_secret_to_public): Remove. (ssh_send_key_public): Rewrite. (ssh_handler_request_identities): Simplify. (data_sign): Add rename args. Add new args HASH and HASHLEN. Make use of es_fopenmen and es_fclose_snatch. Remove parsing into MPIs which is now doe in the sgnature encoder functions. (ssh_handler_sign_request): Take care of Ed25519. (ssh_key_extract_comment): Rewrite using gcry_sexp_nth_string. -- To make the code easier readable most of the Ed25591 work has been done using a new explicit code path. Warning: Libgcrypt 1.6.1 uses a non optimized implementation for Ed25519 and timing attacks might be possible. While working on the code I realized that it could need more rework; it is at some places quite baroque and more complicated than needed. Given that we require Libgcrypt 1.6 anyway, we should make more use of modern Libgcrypt functions.
* agent: Cleanups to prepare implementation of Ed25519.Werner Koch2014-03-226-80/+136
| | | | | | | | | | | | * agent/cvt-openpgp.c: Remove. (convert_to_openpgp): Use gcry_sexp_extract_param. * agent/findkey.c (is_eddsa): New. (agent_is_dsa_key, agent_is_eddsa_key): Check whether ecc means EdDSA. * agent/pksign.c (agent_pksign_do): Add args OVERRIDEDATA and OVERRIDEDATALEN. * common/ssh-utils.c (is_eddsa): New. (get_fingerprint): Take care or EdDSA.
* agent: API change of agent_key_from_file.NIIBE Yutaka2014-03-114-35/+30
| | | | | | | | | | | | * agent/findkey.c (agent_key_from_file): Always return S-expression. * agent/command.c (cmd_passwd): Distinguish by SHADOW_INFO. (cmd_export_key): Likewise. Free SHADOW_INFO. (cmd_keytocard): Likewise. Release S_SKEY. * agent/pkdecrypt.c (agent_pkdecrypt): Likewise. * agent/pksign.c (agent_pksign_do): Likewise. Use the S-expression to know the key type. Signed-off-by: NIIBE Yutaka <[email protected]>
* w32: Silence warnings about unused vars.Werner Koch2014-03-071-0/+3
| | | | | | | | | | | | * agent/gpg-agent.c (main) [W32]: Mark unused vars. * sm/gpgsm.c (run_protect_tool) [W32]: Ditto. * g10/trustdb.c (check_regexp) [DISABLE_REGEX]: Ditto. * scd/scdaemon.c (main) [W32]: Ditto. (handle_connections) [W32]: Ditto. (handle_signal) [W32]: Do not build the function at all. * scd/apdu.c (pcsc_send_apdu_direct): Ditto. (connect_pcsc_card): s/long/pcsc_dword_t/. (open_pcsc_reader_direct): Remove var listlen.
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