Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdepim@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 744 insertions, 0 deletions

diff --git a/libkdenetwork/libgpgme-copy/gpgme/engine.c b/libkdenetwork/libgpgme-copy/gpgme/engine.c
new file mode 100644
index 000000000..a64b4625d
--- /dev/null
+++ b/libkdenetwork/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., 59 Temple Place - Suite 330, Boston, MA
+   02111-1307, 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);
+}