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/* engine-backend.h - A crypto backend for the engine interface.
Copyright (C) 2002, 2003, 2004 g10 Code GmbH
This file is part of GPGME.
GPGME is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as
published by the Free Software Foundation; either version 2.1 of
the License, or (at your option) any later version.
GPGME is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
02111-1307, USA. */
#ifndef ENGINE_BACKEND_H
#define ENGINE_BACKEND_H
#include "engine.h"
/* FIXME: Correct check? */
#ifdef GPGSM_PATH
#define ENABLE_GPGSM 1
#endif
struct engine_ops
{
/* Static functions. */
/* Return the default file name for the binary of this engine. */
const char *(*get_file_name) (void);
/* Returns a malloced string containing the version of the engine
with the given binary file name (or the default if FILE_NAME is
NULL. */
char *(*get_version) (const char *file_name);
/* Returns a statically allocated string containing the required
version. */
const char *(*get_req_version) (void);
gpgme_error_t (*new) (void **r_engine,
const char *file_name, const char *home_dir);
/* Member functions. */
void (*release) (void *engine);
gpgme_error_t (*reset) (void *engine);
void (*set_status_handler) (void *engine, engine_status_handler_t fnc,
void *fnc_value);
gpgme_error_t (*set_command_handler) (void *engine,
engine_command_handler_t fnc,
void *fnc_value, gpgme_data_t data);
gpgme_error_t (*set_colon_line_handler) (void *engine,
engine_colon_line_handler_t fnc,
void *fnc_value);
gpgme_error_t (*set_locale) (void *engine, int category, const char *value);
gpgme_error_t (*decrypt) (void *engine, gpgme_data_t ciph,
gpgme_data_t plain);
gpgme_error_t (*delete) (void *engine, gpgme_key_t key, int allow_secret);
gpgme_error_t (*edit) (void *engine, int type, gpgme_key_t key,
gpgme_data_t out, gpgme_ctx_t ctx /* FIXME */);
gpgme_error_t (*encrypt) (void *engine, gpgme_key_t recp[],
gpgme_encrypt_flags_t flags,
gpgme_data_t plain, gpgme_data_t ciph,
int use_armor);
gpgme_error_t (*encrypt_sign) (void *engine, gpgme_key_t recp[],
gpgme_encrypt_flags_t flags,
gpgme_data_t plain, gpgme_data_t ciph,
int use_armor, gpgme_ctx_t ctx /* FIXME */);
gpgme_error_t (*export) (void *engine, const char *pattern,
unsigned int reserved, gpgme_data_t keydata,
int use_armor);
gpgme_error_t (*export_ext) (void *engine, const char *pattern[],
unsigned int reserved, gpgme_data_t keydata,
int use_armor);
gpgme_error_t (*genkey) (void *engine, gpgme_data_t help_data, int use_armor,
gpgme_data_t pubkey, gpgme_data_t seckey);
gpgme_error_t (*import) (void *engine, gpgme_data_t keydata);
gpgme_error_t (*keylist) (void *engine, const char *pattern,
int secret_only, gpgme_keylist_mode_t mode);
gpgme_error_t (*keylist_ext) (void *engine, const char *pattern[],
int secret_only, int reserved,
gpgme_keylist_mode_t mode);
gpgme_error_t (*sign) (void *engine, gpgme_data_t in, gpgme_data_t out,
gpgme_sig_mode_t mode, int use_armor,
int use_textmode,
int include_certs, gpgme_ctx_t ctx /* FIXME */);
gpgme_error_t (*trustlist) (void *engine, const char *pattern);
gpgme_error_t (*verify) (void *engine, gpgme_data_t sig,
gpgme_data_t signed_text,
gpgme_data_t plaintext);
gpgme_error_t (*getauditlog) (void *engine, gpgme_data_t output,
unsigned int flags);
gpgme_error_t (*conf_load) (void *engine, gpgme_conf_comp_t *conf_p);
gpgme_error_t (*conf_save) (void *engine, gpgme_conf_comp_t conf);
void (*set_io_cbs) (void *engine, gpgme_io_cbs_t io_cbs);
void (*io_event) (void *engine, gpgme_event_io_t type, void *type_data);
gpgme_error_t (*cancel) (void *engine);
};
extern struct engine_ops _gpgme_engine_ops_gpg; /* OpenPGP. */
#ifdef ENABLE_GPGSM
extern struct engine_ops _gpgme_engine_ops_gpgsm; /* CMS. */
#endif
#ifdef ENABLE_GPGCONF
extern struct engine_ops _gpgme_engine_ops_gpgconf; /* gpg-conf. */
#endif
#endif /* ENGINE_BACKEND_H */

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