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-rw-r--r--libtdenetwork/libgpgme-copy/gpgme/engine.c744
1 files changed, 744 insertions, 0 deletions
diff --git a/libtdenetwork/libgpgme-copy/gpgme/engine.c b/libtdenetwork/libgpgme-copy/gpgme/engine.c
new file mode 100644
index 000000000..ae5bc8674
--- /dev/null
+++ b/libtdenetwork/libgpgme-copy/gpgme/engine.c
@@ -0,0 +1,744 @@
+/* engine.c - GPGME engine support.
+ Copyright (C) 2000 Werner Koch (dd9jn)
+ Copyright (C) 2001, 2002, 2003, 2004, 2006 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., 51 Franklin Street, Fifth Floor, Boston, MA
+ 02110-1301, USA. */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <assert.h>
+
+#include "gpgme.h"
+#include "util.h"
+#include "sema.h"
+#include "ops.h"
+
+#include "engine.h"
+#include "engine-backend.h"
+
+
+struct engine
+{
+ struct engine_ops *ops;
+ void *engine;
+};
+
+
+static struct engine_ops *engine_ops[] =
+ {
+ &_gpgme_engine_ops_gpg, /* OpenPGP. */
+#ifdef ENABLE_GPGSM
+ &_gpgme_engine_ops_gpgsm /* CMS. */
+#else
+ NULL
+#endif
+ };
+
+
+/* The engine info. */
+static gpgme_engine_info_t engine_info;
+DEFINE_STATIC_LOCK (engine_info_lock);
+
+
+/* Get the file name of the engine for PROTOCOL. */
+static const char *
+engine_get_file_name (gpgme_protocol_t proto)
+{
+ if (proto > DIM (engine_ops))
+ return NULL;
+
+ if (engine_ops[proto] && engine_ops[proto]->get_file_name)
+ return (*engine_ops[proto]->get_file_name) ();
+ else
+ return NULL;
+}
+
+
+/* Get a malloced string containing the version number of the engine
+ for PROTOCOL. */
+static char *
+engine_get_version (gpgme_protocol_t proto, const char *file_name)
+{
+ if (proto > DIM (engine_ops))
+ return NULL;
+
+ if (engine_ops[proto] && engine_ops[proto]->get_version)
+ return (*engine_ops[proto]->get_version) (file_name);
+ else
+ return NULL;
+}
+
+
+/* Get the required version number of the engine for PROTOCOL. */
+static const char *
+engine_get_req_version (gpgme_protocol_t proto)
+{
+ if (proto > DIM (engine_ops))
+ return NULL;
+
+ if (engine_ops[proto] && engine_ops[proto]->get_req_version)
+ return (*engine_ops[proto]->get_req_version) ();
+ else
+ return NULL;
+}
+
+
+/* Verify the version requirement for the engine for PROTOCOL. */
+gpgme_error_t
+gpgme_engine_check_version (gpgme_protocol_t proto)
+{
+ gpgme_error_t err;
+ gpgme_engine_info_t info;
+ int result;
+
+ LOCK (engine_info_lock);
+ info = engine_info;
+ if (!info)
+ {
+ /* Make sure it is initialized. */
+ UNLOCK (engine_info_lock);
+ err = gpgme_get_engine_info (&info);
+ if (err)
+ return err;
+
+ LOCK (engine_info_lock);
+ }
+
+ while (info && info->protocol != proto)
+ info = info->next;
+
+ if (!info)
+ result = 0;
+ else
+ result = _gpgme_compare_versions (info->version,
+ info->req_version);
+
+ UNLOCK (engine_info_lock);
+ return result ? 0 : gpg_error (GPG_ERR_INV_ENGINE);
+}
+
+
+/* Release the engine info INFO. */
+void
+_gpgme_engine_info_release (gpgme_engine_info_t info)
+{
+ while (info)
+ {
+ gpgme_engine_info_t next_info = info->next;
+
+ assert (info->file_name);
+ free (info->file_name);
+ if (info->home_dir)
+ free (info->home_dir);
+ if (info->version)
+ free (info->version);
+ free (info);
+ info = next_info;
+ }
+}
+
+
+/* Get the information about the configured and installed engines. A
+ pointer to the first engine in the statically allocated linked list
+ is returned in *INFO. If an error occurs, it is returned. The
+ returned data is valid until the next gpgme_set_engine_info. */
+gpgme_error_t
+gpgme_get_engine_info (gpgme_engine_info_t *info)
+{
+ LOCK (engine_info_lock);
+ if (!engine_info)
+ {
+ gpgme_engine_info_t *lastp = &engine_info;
+ gpgme_protocol_t proto_list[] = { GPGME_PROTOCOL_OpenPGP,
+ GPGME_PROTOCOL_CMS };
+ unsigned int proto;
+
+ for (proto = 0; proto < DIM (proto_list); proto++)
+ {
+ const char *ofile_name = engine_get_file_name (proto_list[proto]);
+ char *file_name;
+
+ if (!ofile_name)
+ continue;
+
+ file_name = strdup (ofile_name);
+
+ *lastp = malloc (sizeof (*engine_info));
+ if (!*lastp || !file_name)
+ {
+ int saved_errno = errno;
+
+ _gpgme_engine_info_release (engine_info);
+ engine_info = NULL;
+
+ if (file_name)
+ free (file_name);
+
+ UNLOCK (engine_info_lock);
+ return gpg_error_from_errno (saved_errno);
+ }
+
+ (*lastp)->protocol = proto_list[proto];
+ (*lastp)->file_name = file_name;
+ (*lastp)->home_dir = NULL;
+ (*lastp)->version = engine_get_version (proto_list[proto], NULL);
+ (*lastp)->req_version = engine_get_req_version (proto_list[proto]);
+ (*lastp)->next = NULL;
+ lastp = &(*lastp)->next;
+ }
+ }
+
+ *info = engine_info;
+ UNLOCK (engine_info_lock);
+ return 0;
+}
+
+
+/* Get a deep copy of the engine info and return it in INFO. */
+gpgme_error_t
+_gpgme_engine_info_copy (gpgme_engine_info_t *r_info)
+{
+ gpgme_error_t err = 0;
+ gpgme_engine_info_t info;
+ gpgme_engine_info_t new_info;
+ gpgme_engine_info_t *lastp;
+
+ LOCK (engine_info_lock);
+ info = engine_info;
+ if (!info)
+ {
+ /* Make sure it is initialized. */
+ UNLOCK (engine_info_lock);
+ err = gpgme_get_engine_info (&info);
+ if (err)
+ return err;
+
+ LOCK (engine_info_lock);
+ }
+
+ new_info = NULL;
+ lastp = &new_info;
+
+ while (info)
+ {
+ char *file_name;
+ char *home_dir;
+ char *version;
+
+ assert (info->file_name);
+ file_name = strdup (info->file_name);
+
+ if (info->home_dir)
+ {
+ home_dir = strdup (info->home_dir);
+ if (!home_dir)
+ err = gpg_error_from_errno (errno);
+ }
+ else
+ home_dir = NULL;
+
+ if (info->version)
+ {
+ version = strdup (info->version);
+ if (!version)
+ err = gpg_error_from_errno (errno);
+ }
+ else
+ version = NULL;
+
+ *lastp = malloc (sizeof (*engine_info));
+ if (!*lastp || !file_name || err)
+ {
+ int saved_errno = errno;
+
+ _gpgme_engine_info_release (new_info);
+
+ if (file_name)
+ free (file_name);
+ if (home_dir)
+ free (home_dir);
+ if (version)
+ free (version);
+
+ UNLOCK (engine_info_lock);
+ return gpg_error_from_errno (saved_errno);
+ }
+
+ (*lastp)->protocol = info->protocol;
+ (*lastp)->file_name = file_name;
+ (*lastp)->home_dir = home_dir;
+ (*lastp)->version = version;
+ (*lastp)->req_version = info->req_version;
+ (*lastp)->next = NULL;
+ lastp = &(*lastp)->next;
+
+ info = info->next;
+ }
+
+ *r_info = new_info;
+ UNLOCK (engine_info_lock);
+ return 0;
+}
+
+
+/* Set the engine info for the info list INFO, protocol PROTO, to the
+ file name FILE_NAME and the home directory HOME_DIR. */
+gpgme_error_t
+_gpgme_set_engine_info (gpgme_engine_info_t info, gpgme_protocol_t proto,
+ const char *file_name, const char *home_dir)
+{
+ char *new_file_name;
+ char *new_home_dir;
+
+ /* FIXME: Use some PROTO_MAX definition. */
+ if (proto > DIM (engine_ops))
+ return gpg_error (GPG_ERR_INV_VALUE);
+
+ while (info && info->protocol != proto)
+ info = info->next;
+
+ if (!info)
+ return gpg_error (GPG_ERR_INV_ENGINE);
+
+ /* Prepare new members. */
+ if (file_name)
+ new_file_name = strdup (file_name);
+ else
+ {
+ const char *ofile_name = engine_get_file_name (proto);
+ assert (ofile_name);
+ new_file_name = strdup (ofile_name);
+ }
+ if (!new_file_name)
+ return gpg_error_from_errno (errno);
+
+ if (home_dir)
+ {
+ new_home_dir = strdup (home_dir);
+ if (!new_home_dir)
+ {
+ free (new_file_name);
+ return gpg_error_from_errno (errno);
+ }
+ }
+ else
+ new_home_dir = NULL;
+
+ /* Remove the old members. */
+ assert (info->file_name);
+ free (info->file_name);
+ if (info->home_dir)
+ free (info->home_dir);
+ if (info->version)
+ free (info->version);
+
+ /* Install the new members. */
+ info->file_name = new_file_name;
+ info->home_dir = new_home_dir;
+ info->version = engine_get_version (proto, new_file_name);
+
+ return 0;
+}
+
+
+/* Set the default engine info for the protocol PROTO to the file name
+ FILE_NAME and the home directory HOME_DIR. */
+gpgme_error_t
+gpgme_set_engine_info (gpgme_protocol_t proto,
+ const char *file_name, const char *home_dir)
+{
+ gpgme_error_t err;
+ gpgme_engine_info_t info;
+
+ LOCK (engine_info_lock);
+ info = engine_info;
+ if (!info)
+ {
+ /* Make sure it is initialized. */
+ UNLOCK (engine_info_lock);
+ err = gpgme_get_engine_info (&info);
+ if (err)
+ return err;
+
+ LOCK (engine_info_lock);
+ }
+
+ err = _gpgme_set_engine_info (info, proto, file_name, home_dir);
+ UNLOCK (engine_info_lock);
+ return err;
+}
+
+
+gpgme_error_t
+_gpgme_engine_new (gpgme_engine_info_t info, engine_t *r_engine)
+{
+ engine_t engine;
+
+ if (!info->file_name || !info->version)
+ return gpg_error (GPG_ERR_INV_ENGINE);
+
+ engine = calloc (1, sizeof *engine);
+ if (!engine)
+ return gpg_error_from_errno (errno);
+
+ engine->ops = engine_ops[info->protocol];
+ if (engine->ops->new)
+ {
+ gpgme_error_t err;
+ err = (*engine->ops->new) (&engine->engine,
+ info->file_name, info->home_dir);
+ if (err)
+ {
+ free (engine);
+ return err;
+ }
+ }
+ else
+ engine->engine = NULL;
+
+ *r_engine = engine;
+ return 0;
+}
+
+
+gpgme_error_t
+_gpgme_engine_reset (engine_t engine)
+{
+ if (!engine)
+ return gpg_error (GPG_ERR_INV_VALUE);
+
+ if (!engine->ops->reset)
+ return gpg_error (GPG_ERR_NOT_IMPLEMENTED);
+
+ return (*engine->ops->reset) (engine->engine);
+}
+
+
+void
+_gpgme_engine_release (engine_t engine)
+{
+ if (!engine)
+ return;
+
+ if (engine->ops->release)
+ (*engine->ops->release) (engine->engine);
+ free (engine);
+}
+
+
+void
+_gpgme_engine_set_status_handler (engine_t engine,
+ engine_status_handler_t fnc, void *fnc_value)
+{
+ if (!engine)
+ return;
+
+ if (engine->ops->set_status_handler)
+ (*engine->ops->set_status_handler) (engine->engine, fnc, fnc_value);
+}
+
+
+gpgme_error_t
+_gpgme_engine_set_command_handler (engine_t engine,
+ engine_command_handler_t fnc,
+ void *fnc_value,
+ gpgme_data_t linked_data)
+{
+ if (!engine)
+ return gpg_error (GPG_ERR_INV_VALUE);
+
+ if (!engine->ops->set_command_handler)
+ return gpg_error (GPG_ERR_NOT_IMPLEMENTED);
+
+ return (*engine->ops->set_command_handler) (engine->engine,
+ fnc, fnc_value, linked_data);
+}
+
+gpgme_error_t
+_gpgme_engine_set_colon_line_handler (engine_t engine,
+ engine_colon_line_handler_t fnc,
+ void *fnc_value)
+{
+ if (!engine)
+ return gpg_error (GPG_ERR_INV_VALUE);
+
+ if (!engine->ops->set_colon_line_handler)
+ return gpg_error (GPG_ERR_NOT_IMPLEMENTED);
+
+ return (*engine->ops->set_colon_line_handler) (engine->engine,
+ fnc, fnc_value);
+}
+
+gpgme_error_t
+_gpgme_engine_set_locale (engine_t engine, int category,
+ const char *value)
+{
+ if (!engine)
+ return gpg_error (GPG_ERR_INV_VALUE);
+
+ if (!engine->ops->set_locale)
+ return gpg_error (GPG_ERR_NOT_IMPLEMENTED);
+
+ return (*engine->ops->set_locale) (engine->engine, category, value);
+}
+
+gpgme_error_t
+_gpgme_engine_op_decrypt (engine_t engine, gpgme_data_t ciph,
+ gpgme_data_t plain)
+{
+ if (!engine)
+ return gpg_error (GPG_ERR_INV_VALUE);
+
+ if (!engine->ops->decrypt)
+ return gpg_error (GPG_ERR_NOT_IMPLEMENTED);
+
+ return (*engine->ops->decrypt) (engine->engine, ciph, plain);
+}
+
+gpgme_error_t
+_gpgme_engine_op_delete (engine_t engine, gpgme_key_t key,
+ int allow_secret)
+{
+ if (!engine)
+ return gpg_error (GPG_ERR_INV_VALUE);
+
+ if (!engine->ops->delete)
+ return gpg_error (GPG_ERR_NOT_IMPLEMENTED);
+
+ return (*engine->ops->delete) (engine->engine, key, allow_secret);
+}
+
+
+gpgme_error_t
+_gpgme_engine_op_edit (engine_t engine, int type, gpgme_key_t key,
+ gpgme_data_t out, gpgme_ctx_t ctx /* FIXME */)
+{
+ if (!engine)
+ return gpg_error (GPG_ERR_INV_VALUE);
+
+ if (!engine->ops->edit)
+ return gpg_error (GPG_ERR_NOT_IMPLEMENTED);
+
+ return (*engine->ops->edit) (engine->engine, type, key, out, ctx);
+}
+
+
+gpgme_error_t
+_gpgme_engine_op_encrypt (engine_t engine, gpgme_key_t recp[],
+ gpgme_encrypt_flags_t flags,
+ gpgme_data_t plain, gpgme_data_t ciph, int use_armor)
+{
+ if (!engine)
+ return gpg_error (GPG_ERR_INV_VALUE);
+
+ if (!engine->ops->encrypt)
+ return gpg_error (GPG_ERR_NOT_IMPLEMENTED);
+
+ return (*engine->ops->encrypt) (engine->engine, recp, flags, plain, ciph,
+ use_armor);
+}
+
+
+gpgme_error_t
+_gpgme_engine_op_encrypt_sign (engine_t 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 */)
+{
+ if (!engine)
+ return gpg_error (GPG_ERR_INV_VALUE);
+
+ if (!engine->ops->encrypt_sign)
+ return gpg_error (GPG_ERR_NOT_IMPLEMENTED);
+
+ return (*engine->ops->encrypt_sign) (engine->engine, recp, flags,
+ plain, ciph, use_armor, ctx);
+}
+
+
+gpgme_error_t
+_gpgme_engine_op_export (engine_t engine, const char *pattern,
+ unsigned int reserved, gpgme_data_t keydata,
+ int use_armor)
+{
+ if (!engine)
+ return gpg_error (GPG_ERR_INV_VALUE);
+
+ if (!engine->ops->export)
+ return gpg_error (GPG_ERR_NOT_IMPLEMENTED);
+
+ return (*engine->ops->export) (engine->engine, pattern, reserved,
+ keydata, use_armor);
+}
+
+
+gpgme_error_t
+_gpgme_engine_op_export_ext (engine_t engine, const char *pattern[],
+ unsigned int reserved, gpgme_data_t keydata,
+ int use_armor)
+{
+ if (!engine)
+ return gpg_error (GPG_ERR_INV_VALUE);
+
+ if (!engine->ops->export_ext)
+ return gpg_error (GPG_ERR_NOT_IMPLEMENTED);
+
+ return (*engine->ops->export_ext) (engine->engine, pattern, reserved,
+ keydata, use_armor);
+}
+
+
+gpgme_error_t
+_gpgme_engine_op_genkey (engine_t engine, gpgme_data_t help_data,
+ int use_armor, gpgme_data_t pubkey,
+ gpgme_data_t seckey)
+{
+ if (!engine)
+ return gpg_error (GPG_ERR_INV_VALUE);
+
+ if (!engine->ops->genkey)
+ return gpg_error (GPG_ERR_NOT_IMPLEMENTED);
+
+ return (*engine->ops->genkey) (engine->engine, help_data, use_armor,
+ pubkey, seckey);
+}
+
+
+gpgme_error_t
+_gpgme_engine_op_import (engine_t engine, gpgme_data_t keydata)
+{
+ if (!engine)
+ return gpg_error (GPG_ERR_INV_VALUE);
+
+ if (!engine->ops->import)
+ return gpg_error (GPG_ERR_NOT_IMPLEMENTED);
+
+ return (*engine->ops->import) (engine->engine, keydata);
+}
+
+
+gpgme_error_t
+_gpgme_engine_op_keylist (engine_t engine, const char *pattern,
+ int secret_only, gpgme_keylist_mode_t mode)
+{
+ if (!engine)
+ return gpg_error (GPG_ERR_INV_VALUE);
+
+ if (!engine->ops->keylist)
+ return gpg_error (GPG_ERR_NOT_IMPLEMENTED);
+
+ return (*engine->ops->keylist) (engine->engine, pattern, secret_only, mode);
+}
+
+
+gpgme_error_t
+_gpgme_engine_op_keylist_ext (engine_t engine, const char *pattern[],
+ int secret_only, int reserved,
+ gpgme_keylist_mode_t mode)
+{
+ if (!engine)
+ return gpg_error (GPG_ERR_INV_VALUE);
+
+ if (!engine->ops->keylist_ext)
+ return gpg_error (GPG_ERR_NOT_IMPLEMENTED);
+
+ return (*engine->ops->keylist_ext) (engine->engine, pattern, secret_only,
+ reserved, mode);
+}
+
+
+gpgme_error_t
+_gpgme_engine_op_sign (engine_t 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 */)
+{
+ if (!engine)
+ return gpg_error (GPG_ERR_INV_VALUE);
+
+ if (!engine->ops->sign)
+ return gpg_error (GPG_ERR_NOT_IMPLEMENTED);
+
+ return (*engine->ops->sign) (engine->engine, in, out, mode, use_armor,
+ use_textmode, include_certs, ctx);
+}
+
+
+gpgme_error_t
+_gpgme_engine_op_trustlist (engine_t engine, const char *pattern)
+{
+ if (!engine)
+ return gpg_error (GPG_ERR_INV_VALUE);
+
+ if (!engine->ops->trustlist)
+ return gpg_error (GPG_ERR_NOT_IMPLEMENTED);
+
+ return (*engine->ops->trustlist) (engine->engine, pattern);
+}
+
+
+gpgme_error_t
+_gpgme_engine_op_verify (engine_t engine, gpgme_data_t sig,
+ gpgme_data_t signed_text, gpgme_data_t plaintext)
+{
+ if (!engine)
+ return gpg_error (GPG_ERR_INV_VALUE);
+
+ if (!engine->ops->verify)
+ return gpg_error (GPG_ERR_NOT_IMPLEMENTED);
+
+ return (*engine->ops->verify) (engine->engine, sig, signed_text, plaintext);
+}
+
+
+void
+_gpgme_engine_set_io_cbs (engine_t engine, gpgme_io_cbs_t io_cbs)
+{
+ if (!engine)
+ return;
+
+ (*engine->ops->set_io_cbs) (engine->engine, io_cbs);
+}
+
+
+void
+_gpgme_engine_io_event (engine_t engine,
+ gpgme_event_io_t type, void *type_data)
+{
+ if (!engine)
+ return;
+
+ (*engine->ops->io_event) (engine->engine, type, type_data);
+}
+
+
+gpgme_error_t
+_gpgme_engine_cancel (engine_t engine)
+{
+ if (!engine)
+ return gpg_error (GPG_ERR_INV_VALUE);
+
+ if (!engine->ops->cancel)
+ return gpg_error (GPG_ERR_NOT_IMPLEMENTED);
+
+ return (*engine->ops->cancel) (engine->engine);
+}