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+/* context.h - Definitions for a GPGME context.
+ Copyright (C) 2000 Werner Koch (dd9jn)
+ Copyright (C) 2001, 2002, 2003, 2004, 2005 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 CONTEXT_H
+#define CONTEXT_H
+
+#include "gpgme.h"
+#include "engine.h"
+#include "wait.h"
+
+
+/* Operations might require to remember arbitrary information and data
+ objects during invocations of the status handler. The
+ ctx_op_data structure provides a generic framework to hook in
+ such additional data. */
+typedef enum
+ {
+ OPDATA_DECRYPT, OPDATA_SIGN, OPDATA_ENCRYPT, OPDATA_PASSPHRASE,
+ OPDATA_IMPORT, OPDATA_GENKEY, OPDATA_KEYLIST, OPDATA_EDIT,
+ OPDATA_VERIFY, OPDATA_TRUSTLIST
+ } ctx_op_data_id_t;
+
+
+struct ctx_op_data
+{
+ /* The next element in the linked list, or NULL if this is the last
+ element. */
+ struct ctx_op_data *next;
+
+ /* The type of the hook data, which can be used by a routine to
+ lookup the hook data. */
+ ctx_op_data_id_t type;
+
+ /* The function to release HOOK and all its associated resources.
+ Can be NULL if no special dealllocation routine is necessary. */
+ void (*cleanup) (void *hook);
+
+ /* The hook that points to the operation data. */
+ void *hook;
+};
+typedef struct ctx_op_data *ctx_op_data_t;
+
+
+/* The context defines an environment in which crypto operations can
+ be performed (sequentially). */
+struct gpgme_context
+{
+ /* The engine info for this context. */
+ gpgme_engine_info_t engine_info;
+
+ /* The protocol used by this context. */
+ gpgme_protocol_t protocol;
+
+ /* The running engine process. */
+ engine_t engine;
+
+ /* True if armor mode should be used. */
+ unsigned int use_armor : 1;
+
+ /* True if text mode should be used. */
+ unsigned int use_textmode : 1;
+
+ /* Flags for keylist mode. */
+ gpgme_keylist_mode_t keylist_mode;
+
+ /* Number of certs to be included. */
+ unsigned int include_certs;
+
+ /* The number of keys in signers. */
+ unsigned int signers_len;
+
+ /* Size of the following array. */
+ unsigned int signers_size;
+ gpgme_key_t *signers;
+
+ /* The signature notations for this context. */
+ gpgme_sig_notation_t sig_notations;
+
+ /* The locale for the pinentry. */
+ char *lc_ctype;
+ char *lc_messages;
+
+ /* The operation data hooked into the context. */
+ ctx_op_data_t op_data;
+
+ /* The user provided passphrase callback and its hook value. */
+ gpgme_passphrase_cb_t passphrase_cb;
+ void *passphrase_cb_value;
+
+ /* The user provided progress callback and its hook value. */
+ gpgme_progress_cb_t progress_cb;
+ void *progress_cb_value;
+
+ /* A list of file descriptors in active use by the current
+ operation. */
+ struct fd_table fdt;
+ struct gpgme_io_cbs io_cbs;
+};
+
+#endif /* CONTEXT_H */