Initial revision

13 files changed, 3536 insertions, 0 deletions

diff --git a/libetpan/src/driver/implementation/mbox/mboxdriver.c b/libetpan/src/driver/implementation/mbox/mboxdriver.c
new file mode 100644
index 0000000..72afa6d
--- a/dev/null
+++ b/libetpan/src/driver/implementation/mbox/mboxdriver.c
@@ -0,0 +1,515 @@
+/*
+ * libEtPan! -- a mail stuff library
+ *
+ * Copyright (C) 2001, 2005 - DINH Viet Hoa
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the libEtPan! project nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/*
+ * $Id$
+ */
+
+#include "mboxdriver.h"
+
+#include <stdio.h>
+#include <string.h>
+#include <sys/types.h>
+#include <dirent.h>
+#include <unistd.h>
+#include <sys/stat.h>
+#include <ctype.h>
+#include <stdlib.h>
+#include <sys/times.h>
+
+#include "mail.h"
+#include "maildriver_tools.h"
+#include "mailmbox.h"
+#include "mboxdriver_tools.h"
+#include "maildriver.h"
+#include "carray.h"
+#include "mboxdriver_message.h"
+#include "mailmessage.h"
+
+static int mboxdriver_initialize(mailsession * session);
+
+static void mboxdriver_uninitialize(mailsession * session);
+
+static int mboxdriver_parameters(mailsession * session,
+				 int id, void * value);
+
+static int mboxdriver_connect_path(mailsession * session, char * path);
+
+static int mboxdriver_logout(mailsession * session);
+
+static int mboxdriver_expunge_folder(mailsession * session);
+
+static int mboxdriver_status_folder(mailsession * session, char * mb,
+    uint32_t * result_messages, uint32_t * result_recent,
+    uint32_t * result_unseen);
+
+static int mboxdriver_messages_number(mailsession * session, char * mb,
+				      uint32_t * result);
+
+static int mboxdriver_append_message(mailsession * session,
+				     char * message, size_t size);
+
+static int mboxdriver_append_message_flags(mailsession * session,
+    char * message, size_t size, struct mail_flags * flags);
+
+static int mboxdriver_get_messages_list(mailsession * session,
+					struct mailmessage_list ** result);
+
+static int
+mboxdriver_get_envelopes_list(mailsession * session,
+			      struct mailmessage_list * env_list);
+
+static int mboxdriver_remove_message(mailsession * session, uint32_t num);
+
+static int mboxdriver_get_message(mailsession * session,
+				  uint32_t num, mailmessage ** result);
+
+static int mboxdriver_get_message_by_uid(mailsession * session,
+    const char * uid,
+    mailmessage ** result);
+
+static mailsession_driver local_mbox_session_driver = {
+  .sess_name = "mbox",
+
+  .sess_initialize = mboxdriver_initialize,
+  .sess_uninitialize = mboxdriver_uninitialize,
+
+  .sess_parameters = mboxdriver_parameters,
+
+  .sess_connect_path = mboxdriver_connect_path,
+  .sess_connect_stream = NULL,
+  .sess_starttls = NULL,
+  .sess_login = NULL,
+  .sess_logout = mboxdriver_logout,
+  .sess_noop = NULL,
+
+  .sess_build_folder_name = NULL,
+  .sess_create_folder = NULL,
+  .sess_delete_folder = NULL,
+  .sess_rename_folder = NULL,
+  .sess_check_folder = NULL,
+  .sess_examine_folder = NULL,
+  .sess_select_folder = NULL,
+  .sess_expunge_folder = mboxdriver_expunge_folder,
+  .sess_status_folder = mboxdriver_status_folder,
+  .sess_messages_number = mboxdriver_messages_number,
+  .sess_recent_number = mboxdriver_messages_number,
+  .sess_unseen_number = mboxdriver_messages_number,
+  .sess_list_folders = NULL,
+  .sess_lsub_folders = NULL,
+  .sess_subscribe_folder = NULL,
+  .sess_unsubscribe_folder = NULL,
+
+  .sess_append_message = mboxdriver_append_message,
+  .sess_append_message_flags = mboxdriver_append_message_flags,
+  .sess_copy_message = NULL,
+  .sess_move_message = NULL,
+
+  .sess_get_messages_list = mboxdriver_get_messages_list,
+  .sess_get_envelopes_list = mboxdriver_get_envelopes_list,
+  .sess_remove_message = mboxdriver_remove_message,
+#if 0
+  .sess_search_messages = maildriver_generic_search_messages,
+#endif
+
+  .sess_get_message = mboxdriver_get_message,
+  .sess_get_message_by_uid = mboxdriver_get_message_by_uid,
+};
+
+mailsession_driver * mbox_session_driver = &local_mbox_session_driver;
+
+static inline struct mbox_session_state_data * get_data(mailsession * session)
+{
+  return session->sess_data;
+}
+
+static inline struct mailmbox_folder * get_mbox_session(mailsession * session)
+{
+  return get_data(session)->mbox_folder;
+}
+
+static int mboxdriver_initialize(mailsession * session)
+{
+  struct mbox_session_state_data * data;
+
+  data = malloc(sizeof(* data));
+  if (data == NULL)
+    goto err;
+
+  data->mbox_folder = NULL;
+
+  data->mbox_force_read_only = FALSE;
+  data->mbox_force_no_uid = TRUE;
+
+  session->sess_data = data;
+  
+  return MAIL_NO_ERROR;
+
+ err:
+  return MAIL_ERROR_MEMORY;
+}
+
+static void free_state(struct mbox_session_state_data * mbox_data)
+{
+  if (mbox_data->mbox_folder != NULL) {
+    mailmbox_done(mbox_data->mbox_folder);
+    mbox_data->mbox_folder = NULL;
+  }
+}
+
+static void mboxdriver_uninitialize(mailsession * session)
+{
+  struct mbox_session_state_data * data;
+
+  data = get_data(session);
+
+  free_state(data);
+
+  free(data);
+}
+
+static int mboxdriver_parameters(mailsession * session,
+				 int id, void * value)
+{
+  struct mbox_session_state_data * data;
+
+  data = get_data(session);
+
+  switch (id) {
+  case MBOXDRIVER_SET_READ_ONLY:
+    {
+      int * param;
+
+      param = value;
+
+      data->mbox_force_read_only = * param;
+      return MAIL_NO_ERROR;
+    }
+
+  case MBOXDRIVER_SET_NO_UID:
+    {
+      int * param;
+
+      param = value;
+
+      data->mbox_force_no_uid = * param;
+      return MAIL_NO_ERROR;
+    }
+  }
+
+  return MAIL_ERROR_INVAL;
+}
+
+
+static int mboxdriver_connect_path(mailsession * session, char * path)
+{
+  struct mbox_session_state_data * mbox_data;
+  struct mailmbox_folder * folder;
+  int r;
+
+  mbox_data = get_data(session);
+
+  if (mbox_data->mbox_folder != NULL)
+    return MAIL_ERROR_BAD_STATE;
+
+  r = mailmbox_init(path,
+		    mbox_data->mbox_force_read_only,
+		    mbox_data->mbox_force_no_uid,
+		    0,
+		    &folder);
+  
+  if (r != MAILMBOX_NO_ERROR)
+    return mboxdriver_mbox_error_to_mail_error(r);
+
+  mbox_data->mbox_folder = folder;
+
+  return MAIL_NO_ERROR;
+}
+
+static int mboxdriver_logout(mailsession * session)
+{
+  struct mbox_session_state_data * mbox_data;
+
+  mbox_data = get_data(session);
+
+  if (mbox_data->mbox_folder == NULL)
+    return MAIL_ERROR_BAD_STATE;
+
+  free_state(mbox_data);
+
+  mbox_data->mbox_folder = NULL;
+
+  return MAIL_NO_ERROR;
+}
+
+static int mboxdriver_expunge_folder(mailsession * session)
+{
+  int r;
+  struct mbox_session_state_data * mbox_data;
+
+  mbox_data = get_data(session);
+
+  if (mbox_data->mbox_folder == NULL)
+    return MAIL_ERROR_BAD_STATE;
+
+  r = mailmbox_expunge(mbox_data->mbox_folder);
+  if (r != MAILMBOX_NO_ERROR)
+    return mboxdriver_mbox_error_to_mail_error(r);
+
+  return MAIL_NO_ERROR;
+}
+
+static int mboxdriver_status_folder(mailsession * session, char * mb,
+    uint32_t * result_messages, uint32_t * result_recent,
+    uint32_t * result_unseen)
+{
+  uint32_t count;
+  int r; 
+  
+  r = mboxdriver_messages_number(session, mb, &count);
+  if (r != MAIL_NO_ERROR)
+    return r; 
+  
+  * result_messages = count;
+  * result_recent = count;
+  * result_unseen = count;
+  
+  return MAIL_NO_ERROR;
+}
+
+static int mboxdriver_messages_number(mailsession * session, char * mb,
+				      uint32_t * result)
+{
+  struct mailmbox_folder * folder;
+  int r;
+
+  folder = get_mbox_session(session);
+  if (folder == NULL)
+    return MAIL_ERROR_STATUS;
+
+  r = mailmbox_validate_read_lock(folder);
+  if (r != MAIL_NO_ERROR)
+    return r;
+
+  mailmbox_read_unlock(folder);
+
+  * result = carray_count(folder->mb_tab) - folder->mb_deleted_count;
+  
+  return MAILMBOX_NO_ERROR;
+}
+
+/* messages operations */
+
+static int mboxdriver_append_message(mailsession * session,
+				     char * message, size_t size)
+{
+  int r;
+  struct mailmbox_folder * folder;
+
+  folder = get_mbox_session(session);
+  if (folder == NULL)
+    return MAIL_ERROR_APPEND;
+
+  r = mailmbox_append_message(folder, message, size);
+
+  switch (r) {
+  case MAILMBOX_ERROR_FILE:
+    return MAIL_ERROR_DISKSPACE;
+  default:
+    return mboxdriver_mbox_error_to_mail_error(r);
+  }
+}
+
+static int mboxdriver_append_message_flags(mailsession * session,
+    char * message, size_t size, struct mail_flags * flags)
+{
+  return mboxdriver_append_message(session, message, size);
+}
+
+static int mboxdriver_get_messages_list(mailsession * session,
+					struct mailmessage_list ** result)
+{
+  struct mailmbox_folder * folder;
+  int res;
+
+  folder = get_mbox_session(session);
+  if (folder == NULL) {
+    res = MAIL_ERROR_BAD_STATE;
+    goto err;
+  }
+
+  return mbox_get_messages_list(folder, session, mbox_message_driver, result);
+
+ err:
+  return res;
+}
+
+static int
+mboxdriver_get_envelopes_list(mailsession * session,
+			      struct mailmessage_list * env_list)
+{
+  struct mailmbox_folder * folder;
+  unsigned int i;
+  int r;
+  int res;
+
+  folder = get_mbox_session(session);
+  if (folder == NULL) {
+    res = MAIL_ERROR_BAD_STATE;
+    goto err;
+  }
+
+  r = mailmbox_validate_read_lock(folder);
+  if (r != MAILMBOX_NO_ERROR) {
+    res = mboxdriver_mbox_error_to_mail_error(r);
+    goto err;
+  }
+
+  for(i = 0 ; i < carray_count(env_list->msg_tab) ; i ++) {
+    mailmessage * msg;
+    struct mailimf_fields * fields;
+    char * headers;
+    size_t headers_len;
+    size_t cur_token;
+
+    msg = carray_get(env_list->msg_tab, i);
+    if (msg == NULL)
+      continue;
+
+    if (msg->msg_fields != NULL)
+      continue;
+
+    r = mailmbox_fetch_msg_headers_no_lock(folder,
+        msg->msg_index, &headers, &headers_len);
+    if (r != MAILMBOX_NO_ERROR) {
+      res = mboxdriver_mbox_error_to_mail_error(r);
+      goto unlock;
+    }
+
+    cur_token = 0;
+    r = mailimf_envelope_fields_parse(headers, headers_len,
+				      &cur_token, &fields);
+    
+    if (r != MAILIMF_NO_ERROR)
+      continue;
+
+    msg->msg_fields = fields;
+  }
+
+  mailmbox_read_unlock(folder);
+
+  return MAIL_NO_ERROR;
+
+ unlock:
+  mailmbox_read_unlock(folder);
+ err:
+  return res;
+}
+
+
+static int mboxdriver_remove_message(mailsession * session, uint32_t num)
+{
+  int r;
+  struct mailmbox_folder * folder;
+
+  folder = get_mbox_session(session);
+  if (folder == NULL)
+    return MAIL_ERROR_DELETE;
+
+  r = mailmbox_delete_msg(folder, num);
+
+  return mboxdriver_mbox_error_to_mail_error(r);
+}
+
+static int mboxdriver_get_message(mailsession * session,
+				  uint32_t num, mailmessage ** result)
+{
+  mailmessage * msg_info;
+  int r;
+
+  msg_info = mailmessage_new();
+  if (msg_info == NULL)
+    return MAIL_ERROR_MEMORY;
+
+  r = mailmessage_init(msg_info, session, mbox_message_driver, num, 0);
+  if (r != MAIL_NO_ERROR) {
+    mailmessage_free(msg_info);
+    return r;
+  }
+
+  * result = msg_info;
+
+  return MAIL_NO_ERROR;
+}
+
+static int mboxdriver_get_message_by_uid(mailsession * session,
+    const char * uid,
+    mailmessage ** result)
+{
+  uint32_t num;
+  char * p;
+  chashdatum key;
+  chashdatum data;
+  struct mailmbox_msg_info * info;
+  struct mailmbox_folder * folder;
+  int r;
+
+  if (uid == NULL)
+    return MAIL_ERROR_INVAL;
+
+  num = strtoul(uid, &p, 10);
+  if (p == uid || * p != '-')
+    return MAIL_ERROR_INVAL;
+
+  folder = get_mbox_session(session);
+  if (folder == NULL)
+    return MAIL_ERROR_BAD_STATE;
+
+  key.data = &num;
+  key.len = sizeof(num);
+
+  r = chash_get(folder->mb_hash, &key, &data);
+  if (r == 0) {
+    char * body_len_p = p + 1;
+    size_t body_len;
+    
+    info = data.data;
+    /* Check if the cached message has the same UID */
+    body_len = strtoul(body_len_p, &p, 10);
+    if (p == body_len_p || * p != '\0')
+      return MAIL_ERROR_INVAL;
+
+    if (body_len == info->msg_body_len)
+      return mboxdriver_get_message(session, num, result);
+  }
+
+  return MAIL_ERROR_MSG_NOT_FOUND;
+}
diff --git a/libetpan/src/driver/implementation/mbox/mboxdriver.h b/libetpan/src/driver/implementation/mbox/mboxdriver.h
new file mode 100644
index 0000000..9b37aa4
--- a/dev/null
+++ b/libetpan/src/driver/implementation/mbox/mboxdriver.h
@@ -0,0 +1,52 @@
+/*
+ * libEtPan! -- a mail stuff library
+ *
+ * Copyright (C) 2001, 2005 - DINH Viet Hoa
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the libEtPan! project nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/*
+ * $Id$
+ */
+
+#ifndef MBOXDRIVER_H
+
+#define MBOXDRIVER_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <libetpan/mboxdriver_types.h>
+
+extern mailsession_driver * mbox_session_driver;
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/libetpan/src/driver/implementation/mbox/mboxdriver_cached.c b/libetpan/src/driver/implementation/mbox/mboxdriver_cached.c
new file mode 100644
index 0000000..eaa0e48
--- a/dev/null
+++ b/libetpan/src/driver/implementation/mbox/mboxdriver_cached.c
@@ -0,0 +1,1337 @@
+/*
+ * libEtPan! -- a mail stuff library
+ *
+ * Copyright (C) 2001, 2005 - DINH Viet Hoa
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the libEtPan! project nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/*
+ * $Id$
+ */
+
+#include "mboxdriver_cached.h"
+
+#include <stdio.h>
+#include <string.h>
+#include <dirent.h>
+#include <unistd.h>
+#include <ctype.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <stdlib.h>
+
+#include "mail.h"
+#include "mail_cache_db.h"
+#include "mboxdriver.h"
+#include "mboxdriver_tools.h"
+#include "maildriver_tools.h"
+#include "mailmbox.h"
+#include "maildriver.h"
+#include "carray.h"
+#include "generic_cache.h"
+#include "imfcache.h"
+#include "mboxdriver_cached_message.h"
+#include "libetpan-config.h"
+
+static int mboxdriver_cached_initialize(mailsession * session);
+
+static void mboxdriver_cached_uninitialize(mailsession * session);
+
+static int mboxdriver_cached_parameters(mailsession * session,
+					int id, void * value);
+
+static int mboxdriver_cached_connect_path(mailsession * session, char * path);
+
+static int mboxdriver_cached_logout(mailsession * session);
+
+static int mboxdriver_cached_check_folder(mailsession * session);
+
+static int mboxdriver_cached_expunge_folder(mailsession * session);
+
+static int mboxdriver_cached_status_folder(mailsession * session, char * mb,
+    uint32_t * result_messages, uint32_t * result_recent,
+    uint32_t * result_unseen);
+static int mboxdriver_cached_messages_number(mailsession * session, char * mb,
+					     uint32_t * result);
+static int mboxdriver_cached_recent_number(mailsession * session, char * mb,
+					   uint32_t * result);
+static int mboxdriver_cached_unseen_number(mailsession * session, char * mb,
+					   uint32_t * result);
+
+static int mboxdriver_cached_append_message(mailsession * session,
+					    char * message, size_t size);
+
+static int mboxdriver_cached_append_message_flags(mailsession * session,
+    char * message, size_t size, struct mail_flags * flags);
+
+static int
+mboxdriver_cached_get_messages_list(mailsession * session,
+				    struct mailmessage_list ** result);
+
+static int
+mboxdriver_cached_get_envelopes_list(mailsession * session,
+			      struct mailmessage_list * env_list);
+
+static int mboxdriver_cached_remove_message(mailsession * session,
+					    uint32_t num);
+
+static int mboxdriver_cached_get_message(mailsession * session,
+					 uint32_t num, mailmessage ** result);
+
+static int mboxdriver_cached_get_message_by_uid(mailsession * session,
+    const char * uid,
+    mailmessage ** result);
+
+static mailsession_driver local_mbox_cached_session_driver = {
+  .sess_name = "mbox-cached",
+
+  .sess_initialize = mboxdriver_cached_initialize,
+  .sess_uninitialize = mboxdriver_cached_uninitialize,
+
+  .sess_parameters = mboxdriver_cached_parameters,
+
+  .sess_connect_path = mboxdriver_cached_connect_path,
+  .sess_connect_stream = NULL,
+  .sess_starttls = NULL,
+  .sess_login = NULL,
+  .sess_logout = mboxdriver_cached_logout,
+  .sess_noop = NULL,
+
+  .sess_build_folder_name = NULL,
+  .sess_create_folder = NULL,
+  .sess_delete_folder = NULL,
+  .sess_rename_folder = NULL,
+  .sess_check_folder = mboxdriver_cached_check_folder,
+  .sess_examine_folder = NULL,
+  .sess_select_folder = NULL,
+  .sess_expunge_folder = mboxdriver_cached_expunge_folder,
+  .sess_status_folder = mboxdriver_cached_status_folder,
+  .sess_messages_number = mboxdriver_cached_messages_number,
+  .sess_recent_number = mboxdriver_cached_recent_number,
+  .sess_unseen_number = mboxdriver_cached_unseen_number,
+  .sess_list_folders = NULL,
+  .sess_lsub_folders = NULL,
+  .sess_subscribe_folder = NULL,
+  .sess_unsubscribe_folder = NULL,
+
+  .sess_append_message = mboxdriver_cached_append_message,
+  .sess_append_message_flags = mboxdriver_cached_append_message_flags,
+  
+  .sess_copy_message = NULL,
+  .sess_move_message = NULL,
+
+  .sess_get_messages_list = mboxdriver_cached_get_messages_list,
+  .sess_get_envelopes_list = mboxdriver_cached_get_envelopes_list,
+  .sess_remove_message = mboxdriver_cached_remove_message,
+#if 0
+  .sess_search_messages = maildriver_generic_search_messages,
+#endif
+
+  .sess_get_message = mboxdriver_cached_get_message,
+  .sess_get_message_by_uid = mboxdriver_cached_get_message_by_uid,
+};
+
+mailsession_driver * mbox_cached_session_driver =
+&local_mbox_cached_session_driver;
+
+
+#define ENV_NAME "env.db"
+#define FLAGS_NAME "flags.db"
+
+
+
+static int mbox_error_to_mail_error(int error)
+{
+  switch (error) {
+  case MAILMBOX_NO_ERROR:
+    return MAIL_NO_ERROR;
+
+  case MAILMBOX_ERROR_PARSE:
+    return MAIL_ERROR_PARSE;
+
+  case MAILMBOX_ERROR_INVAL:
+    return MAIL_ERROR_INVAL;
+
+  case MAILMBOX_ERROR_FILE_NOT_FOUND:
+    return MAIL_ERROR_PARSE;
+
+  case MAILMBOX_ERROR_MEMORY:
+    return MAIL_ERROR_MEMORY;
+
+  case MAILMBOX_ERROR_TEMPORARY_FILE:
+    return MAIL_ERROR_PARSE;
+
+  case MAILMBOX_ERROR_FILE:
+    return MAIL_ERROR_FILE;
+
+  case MAILMBOX_ERROR_MSG_NOT_FOUND:
+    return MAIL_ERROR_MSG_NOT_FOUND;
+
+  case MAILMBOX_ERROR_READONLY:
+    return MAIL_ERROR_READONLY;
+
+  default:
+    return MAIL_ERROR_INVAL;
+  }
+}
+
+
+
+
+static inline struct mbox_cached_session_state_data *
+get_cached_data(mailsession * session)
+{
+  return session->sess_data;
+}
+
+static inline mailsession * get_ancestor(mailsession * session)
+{
+  return get_cached_data(session)->mbox_ancestor;
+}
+
+static inline struct mbox_session_state_data *
+get_ancestor_data(mailsession * session)
+{
+  return get_ancestor(session)->sess_data;
+}
+
+static inline struct mailmbox_folder *
+get_mbox_session(mailsession * session)
+{
+  return get_ancestor_data(session)->mbox_folder;
+}
+
+static int mboxdriver_cached_initialize(mailsession * session)
+{
+  struct mbox_cached_session_state_data * cached_data;
+  struct mbox_session_state_data * mbox_data;
+
+  cached_data = malloc(sizeof(* cached_data));
+  if (cached_data == NULL)
+    goto err;
+
+  cached_data->mbox_flags_store = mail_flags_store_new();
+  if (cached_data->mbox_flags_store == NULL)
+    goto free;
+
+  cached_data->mbox_ancestor = mailsession_new(mbox_session_driver);
+  if (cached_data->mbox_ancestor == NULL)
+    goto free_store;
+
+  cached_data->mbox_quoted_mb = NULL;
+  /*
+    UID must be enabled to take advantage of the cache
+  */
+  mbox_data = cached_data->mbox_ancestor->sess_data;
+  mbox_data->mbox_force_no_uid = FALSE;
+
+  session->sess_data = cached_data;
+
+  return MAIL_NO_ERROR;
+
+ free_store:
+  mail_flags_store_free(cached_data->mbox_flags_store);
+ free:
+  free(cached_data);
+ err:
+  return MAIL_ERROR_MEMORY;
+}
+
+static void free_state(struct mbox_cached_session_state_data * mbox_data)
+{
+  if (mbox_data->mbox_quoted_mb) {
+    free(mbox_data->mbox_quoted_mb);
+    mbox_data->mbox_quoted_mb = NULL;
+  }
+}
+
+static int mbox_flags_store_process(char * flags_directory, char * quoted_mb,
+				    struct mail_flags_store * flags_store)
+{
+  char filename_flags[PATH_MAX];
+  struct mail_cache_db * cache_db_flags;
+  MMAPString * mmapstr;
+  unsigned int i;
+  int r;
+  int res;
+
+  if (carray_count(flags_store->fls_tab) == 0)
+    return MAIL_NO_ERROR;
+
+  if (quoted_mb == NULL)
+    return MAIL_NO_ERROR;
+
+  snprintf(filename_flags, PATH_MAX, "%s%c%s%c%s",
+      flags_directory, MAIL_DIR_SEPARATOR, quoted_mb,
+      MAIL_DIR_SEPARATOR, FLAGS_NAME);
+
+  r = mail_cache_db_open_lock(filename_flags, &cache_db_flags);
+  if (r < 0) {
+    res = MAIL_ERROR_FILE;
+    goto err;
+  }
+
+  mmapstr = mmap_string_new("");
+  if (mmapstr == NULL) {
+    res = MAIL_ERROR_MEMORY;
+    goto close_db_flags;
+  }
+
+  for(i = 0 ; i < carray_count(flags_store->fls_tab) ; i ++) {
+    mailmessage * msg;
+
+    msg = carray_get(flags_store->fls_tab, i);
+
+    r = mboxdriver_write_cached_flags(cache_db_flags, mmapstr,
+        msg->msg_uid, msg->msg_flags);
+    if (r != MAIL_NO_ERROR) {
+      /* ignore errors */
+    }
+  }
+
+  mmap_string_free(mmapstr);
+  mail_cache_db_close_unlock(filename_flags, cache_db_flags);
+
+  mail_flags_store_clear(flags_store);
+
+  return MAIL_NO_ERROR;
+
+ close_db_flags:
+  mail_cache_db_close_unlock(filename_flags, cache_db_flags);
+ err:
+  return res;
+}
+
+static void mboxdriver_cached_uninitialize(mailsession * session)
+{
+  struct mbox_cached_session_state_data * data;
+
+  data = get_cached_data(session);
+
+  mbox_flags_store_process(data->mbox_flags_directory,
+      data->mbox_quoted_mb,
+      data->mbox_flags_store);
+
+  mail_flags_store_free(data->mbox_flags_store); 
+
+  free_state(data);
+  mailsession_free(data->mbox_ancestor);
+  free(data);
+  
+  session->sess_data = NULL;
+}
+
+static int mboxdriver_cached_parameters(mailsession * session,
+					int id, void * value)
+{
+  struct mbox_cached_session_state_data * data;
+  int r;
+
+  data = get_cached_data(session);
+
+  switch (id) {
+  case MBOXDRIVER_CACHED_SET_CACHE_DIRECTORY:
+    strncpy(data->mbox_cache_directory, value, PATH_MAX);
+    data->mbox_cache_directory[PATH_MAX - 1] = '\0';
+
+    r = generic_cache_create_dir(data->mbox_cache_directory);
+    if (r != MAIL_NO_ERROR)
+      return r;
+
+    return MAIL_NO_ERROR;
+
+  case MBOXDRIVER_CACHED_SET_FLAGS_DIRECTORY:
+    strncpy(data->mbox_flags_directory, value, PATH_MAX);
+    data->mbox_flags_directory[PATH_MAX - 1] = '\0';
+
+    r = generic_cache_create_dir(data->mbox_flags_directory);
+    if (r != MAIL_NO_ERROR)
+      return r;
+
+    return MAIL_NO_ERROR;
+
+  case MBOXDRIVER_SET_NO_UID:
+    return MAIL_ERROR_INVAL;
+
+  default:
+    return mailsession_parameters(data->mbox_ancestor, id, value);
+  }
+}
+
+
+static int get_cache_directory(mailsession * session,
+			       char * path, char ** result)
+{
+  char * quoted_mb;
+  char dirname[PATH_MAX];
+  int res;
+  int r;
+  struct mbox_cached_session_state_data * cached_data;
+
+  cached_data = get_cached_data(session);
+
+  quoted_mb = maildriver_quote_mailbox(path);
+  if (quoted_mb == NULL) {
+    res = MAIL_ERROR_MEMORY;
+    goto err;
+  }
+
+  snprintf(dirname, PATH_MAX, "%s%c%s",
+      cached_data->mbox_cache_directory, MAIL_DIR_SEPARATOR, quoted_mb);
+
+  r = generic_cache_create_dir(dirname);
+  if (r != MAIL_NO_ERROR) {
+    res = r;
+    goto free;
+  }
+
+  snprintf(dirname, PATH_MAX, "%s%c%s",
+      cached_data->mbox_flags_directory, MAIL_DIR_SEPARATOR, quoted_mb);
+
+  r = generic_cache_create_dir(dirname);
+  if (r != MAIL_NO_ERROR) {
+    res = r;
+    goto free;
+  }
+
+  * result = quoted_mb;
+
+  return MAIL_NO_ERROR;
+
+ free:
+  free(quoted_mb);
+ err:
+  return res;
+}
+
+
+
+
+#define FILENAME_MAX_UID "max-uid"
+
+/* write max uid current value */
+
+static int write_max_uid_value(mailsession * session)
+{
+  int r;
+  char filename[PATH_MAX];
+  FILE * f;
+  int res;
+
+#if 0
+  struct mbox_session_state_data * mbox_data;
+#endif
+  struct mbox_cached_session_state_data * cached_data;
+  int fd;
+
+  MMAPString * mmapstr;
+  size_t cur_token;
+  struct mailmbox_folder * folder;
+
+  /* expunge the mailbox */
+
+#if 0
+  mbox_data = get_ancestor(session)->data;
+#endif
+  folder = get_mbox_session(session);
+
+  r = mailmbox_validate_write_lock(folder);
+  if (r != MAILMBOX_NO_ERROR) {
+    res = mbox_error_to_mail_error(r);
+    goto err;
+  }
+
+  r = mailmbox_expunge_no_lock(folder);
+  if (r != MAILMBOX_NO_ERROR) {
+    res = r;
+    goto unlock;
+  }
+
+  cached_data = get_cached_data(session);
+
+  snprintf(filename, PATH_MAX, "%s%c%s%c%s",
+	   cached_data->mbox_flags_directory, MAIL_DIR_SEPARATOR,
+	   cached_data->mbox_quoted_mb, MAIL_DIR_SEPARATOR, FILENAME_MAX_UID);
+
+  fd = creat(filename, S_IRUSR | S_IWUSR);
+  if (fd < 0) {
+    res = MAIL_ERROR_FILE;
+    goto err;
+  }
+  
+  f = fdopen(fd, "w");
+  if (f == NULL) {
+    close(fd);
+    res = MAIL_ERROR_FILE;
+    goto unlock;
+  }
+
+  mmapstr = mmap_string_new("");
+  if (mmapstr == NULL) {
+    res = MAIL_ERROR_MEMORY;
+    goto close;
+  }
+
+  r = mail_serialize_clear(mmapstr, &cur_token);
+  if (r != MAIL_NO_ERROR) {
+    res = r;
+    goto free_mmapstr;
+  }
+
+  r = mailimf_cache_int_write(mmapstr, &cur_token,
+      folder->mb_written_uid);
+  if (r != MAIL_NO_ERROR) {
+    res = r;
+    goto free_mmapstr;
+  }
+
+  fwrite(mmapstr->str, 1, mmapstr->len, f);
+
+  mmap_string_free(mmapstr);
+  fclose(f);
+  mailmbox_write_unlock(folder);
+
+  return MAIL_NO_ERROR;
+
+ free_mmapstr:
+  mmap_string_free(mmapstr);
+ close:
+  fclose(f);
+ unlock:
+  mailmbox_read_unlock(folder);
+ err:
+  return res;
+}
+
+static int read_max_uid_value(mailsession * session, uint32_t * result)
+{
+  int r;
+  char filename[PATH_MAX];
+  FILE * f;
+  uint32_t written_uid;
+  int res;
+
+  struct mbox_cached_session_state_data * cached_data;
+
+  MMAPString * mmapstr;
+  size_t cur_token;
+  char buf[sizeof(uint32_t)];
+  size_t read_size;
+
+  cached_data = get_cached_data(session);
+
+  snprintf(filename, PATH_MAX, "%s%c%s%c%s",
+	   cached_data->mbox_flags_directory, MAIL_DIR_SEPARATOR,
+	   cached_data->mbox_quoted_mb, MAIL_DIR_SEPARATOR, FILENAME_MAX_UID);
+
+  f = fopen(filename, "r");
+  if (f == NULL) {
+    res = MAIL_ERROR_FILE;
+    goto err;
+  }
+
+  read_size = fread(buf, 1, sizeof(uint32_t), f);
+
+  mmapstr = mmap_string_new_len(buf, read_size);
+  if (mmapstr == NULL) {
+    res = MAIL_ERROR_MEMORY;
+    goto close;
+  }
+
+  cur_token = 0;
+  
+  r = mailimf_cache_int_read(mmapstr, &cur_token, &written_uid);
+  if (r != MAIL_NO_ERROR) {
+    fclose(f);
+    res = r;
+    goto free_mmapstr;
+  }
+
+  mmap_string_free(mmapstr);
+  fclose(f);
+
+  * result = written_uid;
+
+  return MAIL_NO_ERROR;
+
+ free_mmapstr:
+  mmap_string_free(mmapstr);
+ close:
+  fclose(f);
+ err:
+  return res;
+}
+
+static int mboxdriver_cached_connect_path(mailsession * session, char * path)
+{
+  int r;
+  int res;
+  char * quoted_mb;
+  struct mbox_cached_session_state_data * cached_data;
+  struct mbox_session_state_data * ancestor_data;
+  struct mailmbox_folder * folder;
+  uint32_t written_uid;
+  
+  folder = get_mbox_session(session);
+  if (folder != NULL) {
+    res = MAIL_ERROR_BAD_STATE;
+    goto err;
+  }
+  
+  r = get_cache_directory(session, path, &quoted_mb);
+  if (r != MAIL_NO_ERROR) {
+    res = r;
+    goto err;
+  }
+
+  cached_data = get_cached_data(session);
+  free_state(cached_data);
+  
+  cached_data->mbox_quoted_mb = quoted_mb;
+
+  written_uid = 0;
+  r = read_max_uid_value(session, &written_uid);
+  /* ignore errors */
+
+  ancestor_data = get_ancestor_data(session);
+
+  r = mailmbox_init(path,
+		    ancestor_data->mbox_force_read_only,
+		    ancestor_data->mbox_force_no_uid,
+		    written_uid,
+		    &folder);
+
+  if (r != MAILMBOX_NO_ERROR) {
+    cached_data->mbox_quoted_mb = NULL;
+
+    res = mboxdriver_mbox_error_to_mail_error(r);
+    goto free;
+  }
+
+  ancestor_data->mbox_folder = folder;
+
+  return MAIL_NO_ERROR;
+  
+ free:
+  free(quoted_mb);
+ err:
+  return res;
+}
+
+
+static int mboxdriver_cached_logout(mailsession * session)
+{
+  struct mbox_cached_session_state_data * cached_data;
+  int r;
+
+  r = write_max_uid_value(session);
+
+  cached_data = get_cached_data(session);
+
+  mbox_flags_store_process(cached_data->mbox_flags_directory,
+			   cached_data->mbox_quoted_mb,
+			   cached_data->mbox_flags_store);
+
+  r = mailsession_logout(get_ancestor(session));
+  if (r != MAIL_NO_ERROR)
+    return r;
+
+  free_state(cached_data);
+
+  return MAIL_NO_ERROR;
+}
+
+static int mboxdriver_cached_check_folder(mailsession * session)
+{
+  struct mbox_cached_session_state_data * cached_data;
+
+  cached_data = get_cached_data(session);
+
+  mbox_flags_store_process(cached_data->mbox_flags_directory,
+                           cached_data->mbox_quoted_mb,
+			   cached_data->mbox_flags_store);
+
+  return MAIL_NO_ERROR;
+}
+
+static int mboxdriver_cached_expunge_folder(mailsession * session)
+{
+  struct mailmbox_folder * folder;
+  int res;
+  char filename_flags[PATH_MAX];
+  struct mail_cache_db * cache_db_flags;
+  MMAPString * mmapstr;
+  struct mbox_cached_session_state_data * data;
+  int r;
+  unsigned int i;
+
+  folder = get_mbox_session(session);
+  if (folder == NULL) {
+    res = MAIL_ERROR_BAD_STATE;
+    goto err;
+  }
+
+  data = get_cached_data(session);
+  if (data->mbox_quoted_mb == NULL) {
+    res = MAIL_ERROR_BAD_STATE;
+    goto err;
+  }
+
+  mbox_flags_store_process(data->mbox_flags_directory,
+			   data->mbox_quoted_mb,
+			   data->mbox_flags_store);
+
+  snprintf(filename_flags, PATH_MAX, "%s%c%s%c%s",
+      data->mbox_flags_directory, MAIL_DIR_SEPARATOR, data->mbox_quoted_mb,
+      MAIL_DIR_SEPARATOR, FLAGS_NAME);
+
+  r = mail_cache_db_open_lock(filename_flags, &cache_db_flags);
+  if (r < 0) {
+    res = MAIL_ERROR_FILE;
+    goto err;
+  }
+
+  mmapstr = mmap_string_new("");
+  if (mmapstr == NULL) {
+    res = MAIL_ERROR_MEMORY;
+    goto close_db_flags;
+  }
+
+  for(i = 0 ; i < carray_count(folder->mb_tab) ; i ++) {
+    struct mailmbox_msg_info * msg_info;
+    struct mail_flags * flags;
+
+    msg_info = carray_get(folder->mb_tab, i);
+    if (msg_info == NULL)
+      continue;
+
+    if (msg_info->msg_deleted)
+      continue;
+
+    r = mboxdriver_get_cached_flags(cache_db_flags, mmapstr,
+        session, msg_info->msg_uid, &flags);
+    if (r != MAIL_NO_ERROR)
+      continue;
+
+    if (flags->fl_flags & MAIL_FLAG_DELETED) {
+      r = mailmbox_delete_msg(folder, msg_info->msg_uid);
+    }
+
+    mail_flags_free(flags);
+  }
+  
+  mmap_string_free(mmapstr);
+  mail_cache_db_close_unlock(filename_flags, cache_db_flags);
+  
+  r = mailmbox_expunge(folder);
+
+  return MAIL_NO_ERROR;
+
+ close_db_flags:
+  mail_cache_db_close_unlock(filename_flags, cache_db_flags);
+ err:
+  return res;
+}
+
+static int mboxdriver_cached_status_folder(mailsession * session, char * mb,
+    uint32_t * result_messages, uint32_t * result_recent,
+    uint32_t * result_unseen)
+{
+  struct mailmbox_folder * folder;
+  int res;
+  char filename_flags[PATH_MAX];
+  struct mail_cache_db * cache_db_flags;
+  MMAPString * mmapstr;
+  struct mbox_cached_session_state_data * data;
+  int r;
+  unsigned int i;
+  uint32_t recent;
+  uint32_t unseen;
+  uint32_t num;
+  
+  num = 0;
+  recent = 0;
+  unseen = 0;
+  
+  folder = get_mbox_session(session);
+  if (folder == NULL) {
+    res = MAIL_ERROR_BAD_STATE;
+    goto err;
+  }
+
+  data = get_cached_data(session);
+  if (data->mbox_quoted_mb == NULL) {
+    res = MAIL_ERROR_BAD_STATE;
+    goto err;
+  }
+
+  r = mailmbox_validate_read_lock(folder);
+  if (r != MAIL_NO_ERROR) {
+    res = MAIL_ERROR_BAD_STATE;
+    goto err;
+  }
+
+  mailmbox_read_unlock(folder);
+
+  mbox_flags_store_process(data->mbox_flags_directory, data->mbox_quoted_mb,
+			   data->mbox_flags_store);
+
+  snprintf(filename_flags, PATH_MAX, "%s%c%s%c%s",
+      data->mbox_flags_directory, MAIL_DIR_SEPARATOR, data->mbox_quoted_mb,
+      MAIL_DIR_SEPARATOR, FLAGS_NAME);
+
+  r = mail_cache_db_open_lock(filename_flags, &cache_db_flags);
+  if (r < 0) {
+    res = MAIL_ERROR_FILE;
+    goto err;
+  }
+
+  mmapstr = mmap_string_new("");
+  if (mmapstr == NULL) {
+    res = MAIL_ERROR_MEMORY;
+    goto close_db_flags;
+  }
+
+  for(i = 0 ; i < carray_count(folder->mb_tab) ; i ++) {
+    struct mailmbox_msg_info * msg_info;
+    struct mail_flags * flags;
+
+    msg_info = carray_get(folder->mb_tab, i);
+    if (msg_info == NULL)
+      continue;
+
+    if (msg_info->msg_deleted)
+      continue;
+
+    r = mboxdriver_get_cached_flags(cache_db_flags, mmapstr,
+        session, msg_info->msg_uid, &flags);
+    if (r != MAIL_NO_ERROR) {
+      recent ++;
+      unseen ++;
+      num ++;
+      continue;
+    }
+
+    if ((flags->fl_flags & MAIL_FLAG_NEW) != 0) {
+      recent ++;
+    }
+    if ((flags->fl_flags & MAIL_FLAG_SEEN) == 0) {
+      unseen ++;
+    }
+
+    num ++;
+
+    mail_flags_free(flags);
+  }
+
+  mmap_string_free(mmapstr);
+  mail_cache_db_close_unlock(filename_flags, cache_db_flags);
+
+  * result_messages = num;
+  * result_recent = recent;
+  * result_unseen = unseen;
+  
+  return MAIL_NO_ERROR;
+
+ close_db_flags:
+  mail_cache_db_close_unlock(filename_flags, cache_db_flags);
+ err:
+  return res;
+}
+
+static int mboxdriver_cached_messages_number(mailsession * session, char * mb,
+					     uint32_t * result)
+{
+  return mailsession_messages_number(get_ancestor(session), mb, result);
+}
+
+
+static int mboxdriver_cached_recent_number(mailsession * session, char * mb,
+					   uint32_t * result)
+{
+  uint32_t messages;
+  uint32_t recent;
+  uint32_t unseen;
+  int r;
+  
+  r = mboxdriver_cached_status_folder(session, mb, &messages, &recent, &unseen);
+  if (r != MAIL_NO_ERROR)
+    return r;
+  
+  * result = recent;
+  
+  return MAIL_NO_ERROR;  
+}
+
+static int mboxdriver_cached_unseen_number(mailsession * session, char * mb,
+					   uint32_t * result)
+{
+  uint32_t messages;
+  uint32_t recent;
+  uint32_t unseen;
+  int r;
+  
+  r = mboxdriver_cached_status_folder(session, mb,
+      &messages, &recent, &unseen);
+  if (r != MAIL_NO_ERROR)
+    return r;
+  
+  * result = unseen;
+  
+  return MAIL_NO_ERROR;
+}
+
+/* messages operations */
+
+static int mboxdriver_cached_append_message(mailsession * session,
+					    char * message, size_t size)
+{
+  return mboxdriver_cached_append_message_flags(session,
+      message, size, NULL);
+}
+
+static int mboxdriver_cached_append_message_flags(mailsession * session,
+    char * message, size_t size, struct mail_flags * flags)
+{
+  int r;
+  struct mailmbox_folder * folder;
+  struct mbox_cached_session_state_data * data;
+  unsigned int uid;
+  struct mailmbox_msg_info * msg_info;
+  chashdatum key;
+  chashdatum value;
+  struct mail_cache_db * cache_db_flags;
+  char filename_flags[PATH_MAX];
+  MMAPString * mmapstr;
+  char keyname[PATH_MAX];
+  
+  folder = get_mbox_session(session);
+  if (folder == NULL)
+    return MAIL_ERROR_APPEND;
+  
+  r = mailmbox_append_message_uid(folder, message, size, &uid);
+  
+  switch (r) {
+  case MAILMBOX_ERROR_FILE:
+    return MAIL_ERROR_DISKSPACE;
+  case MAILMBOX_NO_ERROR:
+    break;
+  default:
+    return mboxdriver_mbox_error_to_mail_error(r);
+  }
+  
+  /* could store in flags store instead */
+  
+  if (flags == NULL)
+    goto exit;
+  
+  key.data = &uid;
+  key.len = sizeof(uid); 
+  r = chash_get(folder->mb_hash, &key, &value);
+  if (r < 0)
+    goto exit;
+  
+  msg_info = value.data;
+  
+  data = get_cached_data(session);
+  
+  snprintf(filename_flags, PATH_MAX, "%s%c%s%c%s",
+      data->mbox_flags_directory, MAIL_DIR_SEPARATOR, data->mbox_quoted_mb,
+      MAIL_DIR_SEPARATOR, FLAGS_NAME);
+  
+  r = mail_cache_db_open_lock(filename_flags, &cache_db_flags);
+  if (r < 0)
+    goto exit;
+  
+  mmapstr = mmap_string_new("");
+  if (mmapstr == NULL)
+    goto close_db_flags;
+  
+  snprintf(keyname, PATH_MAX, "%u-%lu", uid,
+      (unsigned long) msg_info->msg_body_len);
+  
+  r = mboxdriver_write_cached_flags(cache_db_flags, mmapstr, keyname, flags);
+  
+  mmap_string_free(mmapstr);
+  mail_cache_db_close_unlock(filename_flags, cache_db_flags);
+  
+  if (r != MAIL_NO_ERROR)
+    goto exit;
+  
+  return MAIL_NO_ERROR;
+  
+ close_db_flags:
+  mail_cache_db_close_unlock(filename_flags, cache_db_flags);
+ exit:
+  return MAIL_NO_ERROR;
+}
+
+static int
+mboxdriver_cached_get_messages_list(mailsession * session,
+				    struct mailmessage_list ** result)
+{
+  struct mailmbox_folder * folder;
+  int res;
+
+  folder = get_mbox_session(session);
+  if (folder == NULL) {
+    res = MAIL_ERROR_BAD_STATE;
+    goto err;
+  }
+
+  return mbox_get_uid_messages_list(folder,
+      session, mbox_cached_message_driver, result);
+
+ err:
+  return res;
+}
+
+static int
+get_cached_envelope(struct mail_cache_db * cache_db, MMAPString * mmapstr,
+    mailsession * session, uint32_t num,
+    struct mailimf_fields ** result)
+{
+  int r;
+  char keyname[PATH_MAX];
+  struct mailimf_fields * fields;
+  int res;
+  struct mailmbox_msg_info * info;
+  struct mailmbox_folder * folder;
+  chashdatum key;
+  chashdatum data;
+  
+  folder = get_mbox_session(session);
+  if (folder == NULL) {
+    res = MAIL_ERROR_BAD_STATE;
+    goto err;
+  }
+  
+  key.data = &num;
+  key.len = sizeof(num);
+  
+  r = chash_get(folder->mb_hash, &key, &data);
+  if (r < 0) {
+    res = MAIL_ERROR_MSG_NOT_FOUND;
+    goto err;
+  }
+  
+  info = data.data;
+  
+  snprintf(keyname, PATH_MAX, "%u-%lu-envelope", num,
+      (unsigned long) info->msg_body_len);
+
+  r = generic_cache_fields_read(cache_db, mmapstr, keyname, &fields);
+  if (r != MAIL_NO_ERROR) {
+    res = r;
+    goto err;
+  }
+
+  * result = fields;
+
+  return MAIL_NO_ERROR;
+
+ err:
+  return res;
+}
+
+static int
+write_cached_envelope(struct mail_cache_db * cache_db, MMAPString * mmapstr,
+    mailsession * session, uint32_t num,
+    struct mailimf_fields * fields)
+{
+  int r;
+  char keyname[PATH_MAX];
+  int res;
+  struct mailmbox_msg_info * info;
+  struct mailmbox_folder * folder;
+  chashdatum key;
+  chashdatum data;
+  
+  folder = get_mbox_session(session);
+  if (folder == NULL) {
+    res = MAIL_ERROR_BAD_STATE;
+    goto err;
+  }
+
+  key.data = &num;
+  key.len = sizeof(num);
+  
+  r = chash_get(folder->mb_hash, &key, &data);
+  if (r < 0) {
+    res = MAIL_ERROR_MSG_NOT_FOUND;
+    goto err;
+  }
+  
+  info = data.data;
+  
+  snprintf(keyname, PATH_MAX, "%u-%lu-envelope", num,
+      (unsigned long) info->msg_body_len);
+
+  r = generic_cache_fields_write(cache_db, mmapstr, keyname, fields);
+  if (r != MAIL_NO_ERROR) {
+    res = r;
+    goto err;
+  }
+
+  return MAIL_NO_ERROR;
+
+ err:
+  return res;
+}
+
+static int
+mboxdriver_cached_get_envelopes_list(mailsession * session,
+				     struct mailmessage_list * env_list)
+{
+  int r;
+  unsigned int i;
+  struct mbox_cached_session_state_data * cached_data;
+  char filename_env[PATH_MAX];
+  char filename_flags[PATH_MAX];
+  struct mail_cache_db * cache_db_env;
+  struct mail_cache_db * cache_db_flags;
+  MMAPString * mmapstr;
+  int res;
+  struct mailmbox_folder * folder;
+
+  folder = get_mbox_session(session);
+  if (folder == NULL) {
+    res = MAIL_ERROR_BAD_STATE;
+    goto err;
+  }
+
+  cached_data = get_cached_data(session);
+  if (cached_data->mbox_quoted_mb == NULL) {
+    res = MAIL_ERROR_BAD_STATE;
+    goto err;
+  }
+
+  mbox_flags_store_process(cached_data->mbox_flags_directory,
+			   cached_data->mbox_quoted_mb,
+			   cached_data->mbox_flags_store);
+
+  mmapstr = mmap_string_new("");
+  if (mmapstr == NULL) {
+    res = MAIL_ERROR_MEMORY;
+    goto err;
+  }
+
+  snprintf(filename_env, PATH_MAX, "%s%c%s%c%s",
+      cached_data->mbox_cache_directory, MAIL_DIR_SEPARATOR,
+      cached_data->mbox_quoted_mb,
+      MAIL_DIR_SEPARATOR, ENV_NAME);
+
+  r = mail_cache_db_open_lock(filename_env, &cache_db_env);
+  if (r < 0) {
+    res = MAIL_ERROR_MEMORY;
+    goto free_mmapstr;
+  }
+
+  snprintf(filename_flags, PATH_MAX, "%s%c%s%c%s",
+      cached_data->mbox_flags_directory, MAIL_DIR_SEPARATOR,
+      cached_data->mbox_quoted_mb,
+      MAIL_DIR_SEPARATOR, FLAGS_NAME);
+
+  r = mail_cache_db_open_lock(filename_flags, &cache_db_flags);
+  if (r < 0) {
+    res = MAIL_ERROR_FILE;
+    goto close_db_env;
+  }
+
+  /* fill with cached */
+
+  for(i = 0 ; i < carray_count(env_list->msg_tab) ; i ++) {   
+    mailmessage * msg;
+    struct mailimf_fields * fields;
+    struct mail_flags * flags;
+    
+    msg = carray_get(env_list->msg_tab, i);
+
+    if (msg->msg_fields == NULL) {
+      r = get_cached_envelope(cache_db_env, mmapstr, session,
+          msg->msg_index, &fields);
+      if (r == MAIL_NO_ERROR) {
+        msg->msg_cached = TRUE;
+        msg->msg_fields = fields;
+      }
+    }
+
+    if (msg->msg_flags == NULL) {
+      r = mboxdriver_get_cached_flags(cache_db_flags, mmapstr,
+          session, msg->msg_index,
+          &flags);
+      if (r == MAIL_NO_ERROR) {
+        msg->msg_flags = flags;
+      }
+    }
+  }
+  
+  mail_cache_db_close_unlock(filename_flags, cache_db_flags);
+  mail_cache_db_close_unlock(filename_env, cache_db_env);
+
+  r = mailsession_get_envelopes_list(get_ancestor(session), env_list);
+
+  if (r != MAIL_NO_ERROR) {
+    res = r;
+    goto free_mmapstr;
+  }
+  
+  /* add flags */
+  
+  for(i = 0 ; i < carray_count(env_list->msg_tab) ; i ++) {
+    mailmessage * msg;
+
+    msg = carray_get(env_list->msg_tab, i);
+
+    if (msg->msg_flags == NULL)
+      msg->msg_flags = mail_flags_new_empty();
+  }
+  
+  r = mail_cache_db_open_lock(filename_env, &cache_db_env);
+  if (r < 0) {
+    res = MAIL_ERROR_MEMORY;
+    goto free_mmapstr;
+  }
+
+  r = mail_cache_db_open_lock(filename_flags, &cache_db_flags);
+  if (r < 0) {
+    res = MAIL_ERROR_FILE;
+    goto close_db_env;
+  }
+
+  /* must write cache */
+
+  for(i = 0 ; i < carray_count(env_list->msg_tab) ; i ++) {
+    mailmessage * msg;
+
+    msg = carray_get(env_list->msg_tab, i);
+
+    if (msg->msg_fields != NULL) {
+      if (!msg->msg_cached) {
+        /* msg->msg_index is the numerical UID of the message */
+	r = write_cached_envelope(cache_db_env, mmapstr,
+            session, msg->msg_index, msg->msg_fields);
+      }
+    }
+    
+    if (msg->msg_flags != NULL) {
+      r = mboxdriver_write_cached_flags(cache_db_flags, mmapstr,
+          msg->msg_uid, msg->msg_flags);
+    }
+  }
+  
+  /* flush cache */
+  
+  maildriver_cache_clean_up(cache_db_env, cache_db_flags, env_list);
+  
+  mail_cache_db_close_unlock(filename_flags, cache_db_flags);
+  mail_cache_db_close_unlock(filename_env, cache_db_env);
+  
+  mmap_string_free(mmapstr);
+  
+  return MAIL_NO_ERROR;
+  
+ close_db_env:
+  mail_cache_db_close_unlock(filename_env, cache_db_env);
+ free_mmapstr:
+  mmap_string_free(mmapstr);
+ err:
+  return res;
+}
+
+
+static int
+mboxdriver_cached_remove_message(mailsession * session, uint32_t num)
+{
+  return mailsession_remove_message(get_ancestor(session), num);
+}
+
+static int mboxdriver_cached_get_message(mailsession * session,
+					 uint32_t num, mailmessage ** result)
+{
+  mailmessage * msg_info;
+  int r;
+
+  msg_info = mailmessage_new();
+  if (msg_info == NULL)
+    return MAIL_ERROR_MEMORY;
+
+  r = mailmessage_init(msg_info, session, mbox_cached_message_driver, num, 0);
+  if (r != MAIL_NO_ERROR) {
+    mailmessage_free(msg_info);
+    return r;
+  }
+
+  * result = msg_info;
+
+  return MAIL_NO_ERROR;
+}
+
+static int mboxdriver_cached_get_message_by_uid(mailsession * session,
+    const char * uid,
+    mailmessage ** result)
+{
+  uint32_t num;
+  char * p;
+  chashdatum key;
+  chashdatum data;
+  struct mailmbox_msg_info * info;
+  struct mailmbox_folder * folder;
+  int r;
+
+  if (uid == NULL)
+    return MAIL_ERROR_INVAL;
+
+  num = strtoul(uid, &p, 10);
+  if (p == uid || * p != '-')
+    return MAIL_ERROR_INVAL;
+
+  folder = get_mbox_session(session);
+  if (folder == NULL)
+    return MAIL_ERROR_BAD_STATE;
+
+  key.data = &num;
+  key.len = sizeof(num);
+
+  r = chash_get(folder->mb_hash, &key, &data);
+  if (r == 0) {
+    char * body_len_p = p + 1;
+    size_t body_len;
+    
+    info = data.data;
+    /* Check if the cached message has the same UID */
+    body_len = strtoul(body_len_p, &p, 10);
+    if (p == body_len_p || * p != '\0')
+      return MAIL_ERROR_INVAL;
+
+    if (body_len == info->msg_body_len)
+      return mboxdriver_cached_get_message(session, num, result);
+  }
+
+  return MAIL_ERROR_MSG_NOT_FOUND;
+}
diff --git a/libetpan/src/driver/implementation/mbox/mboxdriver_cached.h b/libetpan/src/driver/implementation/mbox/mboxdriver_cached.h
new file mode 100644
index 0000000..25c4027
--- a/dev/null
+++ b/libetpan/src/driver/implementation/mbox/mboxdriver_cached.h
@@ -0,0 +1,54 @@
+/*
+ * libEtPan! -- a mail stuff library
+ *
+ * Copyright (C) 2001, 2005 - DINH Viet Hoa
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the libEtPan! project nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/*
+ * $Id$
+ */
+
+#ifndef MBOXDRIVER_CACHED_H
+
+#define MBOXDRIVER_CACHED_H
+
+#include <libetpan/libetpan-config.h>
+
+#include <libetpan/mboxdriver_types.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern mailsession_driver * mbox_cached_session_driver;
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/libetpan/src/driver/implementation/mbox/mboxdriver_cached_message.c b/libetpan/src/driver/implementation/mbox/mboxdriver_cached_message.c
new file mode 100644
index 0000000..9f77d32
--- a/dev/null
+++ b/libetpan/src/driver/implementation/mbox/mboxdriver_cached_message.c
@@ -0,0 +1,361 @@
+/*
+ * libEtPan! -- a mail stuff library
+ *
+ * Copyright (C) 2001, 2005 - DINH Viet Hoa
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the libEtPan! project nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/*
+ * $Id$
+ */
+
+#include "mboxdriver_cached_message.h"
+
+#include "mailmessage_tools.h"
+#include "mboxdriver_tools.h"
+#include "mboxdriver_cached.h"
+#include "mboxdriver.h"
+#include "mailmbox.h"
+#include "mail_cache_db.h"
+#include "generic_cache.h"
+
+#include <unistd.h>
+#include <sys/mman.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <string.h>
+#include <stdlib.h>
+
+static int mbox_prefetch(mailmessage * msg_info);
+
+static void mbox_prefetch_free(struct generic_message_t * msg);
+
+static int mbox_initialize(mailmessage * msg_info);
+
+static void mbox_uninitialize(mailmessage * msg_info);
+
+static void mbox_flush(mailmessage * msg_info);
+
+static void mbox_check(mailmessage * msg_info);
+
+static int mbox_fetch_size(mailmessage * msg_info,
+			   size_t * result);
+
+static int mbox_get_flags(mailmessage * msg_info,
+			  struct mail_flags ** result);
+
+static int mbox_fetch_header(mailmessage * msg_info,
+			   char ** result,
+			     size_t * result_len);
+
+static mailmessage_driver local_mbox_cached_message_driver = {
+  .msg_name = "mbox-cached",
+
+  .msg_initialize = mbox_initialize,
+  .msg_uninitialize = mbox_uninitialize,
+
+  .msg_flush = mbox_flush,
+  .msg_check = mbox_check,
+
+  .msg_fetch_result_free = mailmessage_generic_fetch_result_free,
+
+  .msg_fetch = mailmessage_generic_fetch,
+  .msg_fetch_header = mbox_fetch_header,
+  .msg_fetch_body = mailmessage_generic_fetch_body,
+  .msg_fetch_size = mbox_fetch_size,
+  .msg_get_bodystructure = mailmessage_generic_get_bodystructure,
+  .msg_fetch_section = mailmessage_generic_fetch_section,
+  .msg_fetch_section_header = mailmessage_generic_fetch_section_header,
+  .msg_fetch_section_mime = mailmessage_generic_fetch_section_mime,
+  .msg_fetch_section_body = mailmessage_generic_fetch_section_body,
+  .msg_fetch_envelope = mailmessage_generic_fetch_envelope,
+
+  .msg_get_flags = mbox_get_flags,
+};
+
+mailmessage_driver * mbox_cached_message_driver =
+&local_mbox_cached_message_driver;
+
+static inline struct mbox_cached_session_state_data *
+get_cached_session_data(mailmessage * msg)
+{
+  return msg->msg_session->sess_data;
+}
+
+static inline mailsession * get_ancestor_session(mailmessage * msg)
+{
+  return get_cached_session_data(msg)->mbox_ancestor;
+}
+
+static inline struct mbox_session_state_data *
+get_ancestor_session_data(mailmessage * msg)
+{
+  return get_ancestor_session(msg)->sess_data;
+}
+
+static inline struct mailmbox_folder *
+get_mbox_session(mailmessage * msg)
+{
+  return get_ancestor_session_data(msg)->mbox_folder;
+}
+
+static int mbox_prefetch(mailmessage * msg_info)
+{
+  struct generic_message_t * msg;
+  int r;
+  char * msg_content;
+  size_t msg_length;
+
+  r = mboxdriver_fetch_msg(get_ancestor_session(msg_info),
+      msg_info->msg_index,
+      &msg_content, &msg_length);
+  if (r != MAIL_NO_ERROR)
+    return r;
+
+  msg = msg_info->msg_data;
+
+  msg->msg_message = msg_content;
+  msg->msg_length = msg_length;
+
+  return MAIL_NO_ERROR;
+}
+
+static void mbox_prefetch_free(struct generic_message_t * msg)
+{
+  if (msg->msg_message != NULL) {
+    mmap_string_unref(msg->msg_message);
+    msg->msg_message = NULL;
+  }
+}
+
+static int mbox_initialize(mailmessage * msg_info)
+{
+  struct generic_message_t * msg;
+  int r;
+  char * uid;
+  char static_uid[PATH_MAX];
+  struct mailmbox_msg_info * info;
+  struct mailmbox_folder * folder;
+  int res;
+  chashdatum key;
+  chashdatum data;
+
+  folder = get_mbox_session(msg_info);
+  if (folder == NULL) {
+    res = MAIL_ERROR_BAD_STATE;
+    goto err;
+  }
+    
+  key.data = (char *) &msg_info->msg_index;
+  key.len = sizeof(msg_info->msg_index);
+  
+  r = chash_get(folder->mb_hash, &key, &data);
+  if (r < 0) {
+    res = MAIL_ERROR_MSG_NOT_FOUND;
+    goto err;
+  }
+  
+  info = (struct mailmbox_msg_info *) data.data;
+  
+  snprintf(static_uid, PATH_MAX, "%u-%lu",
+      msg_info->msg_index, (unsigned long) info->msg_body_len);
+  uid = strdup(static_uid);
+  if (uid == NULL) {
+    res = MAIL_ERROR_MEMORY;
+    goto err;
+  }
+  
+  r = mailmessage_generic_initialize(msg_info);
+  if (r != MAIL_NO_ERROR) {
+    free(uid);
+    res = r;
+    goto err;
+  }
+
+  msg = msg_info->msg_data;
+
+  msg->msg_prefetch = mbox_prefetch;
+  msg->msg_prefetch_free = mbox_prefetch_free;
+  msg_info->msg_uid = uid;
+
+  return MAIL_NO_ERROR;
+
+ err:
+  return res;
+}
+
+static void mbox_uninitialize(mailmessage * msg_info)
+{
+  mailmessage_generic_uninitialize(msg_info);
+}
+
+#define FLAGS_NAME "flags.db"
+
+static void mbox_flush(mailmessage * msg_info)
+{
+  mailmessage_generic_flush(msg_info);
+}
+
+static void mbox_check(mailmessage * msg_info)
+{
+  int r;
+
+  if (msg_info->msg_flags != NULL) {
+    r = mail_flags_store_set(get_cached_session_data(msg_info)->mbox_flags_store,
+        msg_info);
+    /* ignore errors */
+  }
+}
+
+     
+static int mbox_fetch_size(mailmessage * msg_info,
+			   size_t * result)
+{
+  int r;
+  size_t size;
+
+  r = mboxdriver_fetch_size(get_ancestor_session(msg_info),
+			    msg_info->msg_index, &size);
+  if (r != MAIL_NO_ERROR)
+    return r;
+  
+  * result = size;
+
+  return MAIL_NO_ERROR;
+}
+
+static int mbox_get_flags(mailmessage * msg_info,
+			  struct mail_flags ** result)
+{
+  int r;
+  struct mail_flags * flags;
+  struct mail_cache_db * cache_db_flags;
+  char filename_flags[PATH_MAX];
+  int res;
+  struct mbox_cached_session_state_data * cached_data;
+  MMAPString * mmapstr;
+  struct mailmbox_folder * folder;
+
+  if (msg_info->msg_flags != NULL) {
+    * result = msg_info->msg_flags;
+    
+    return MAIL_NO_ERROR;
+  }
+
+  flags = mail_flags_store_get(get_cached_session_data(msg_info)->mbox_flags_store,
+      msg_info->msg_index);
+
+  if (flags == NULL) {
+    folder = get_mbox_session(msg_info);
+    if (folder == NULL) {
+      res = MAIL_ERROR_BAD_STATE;
+      goto err;
+    }
+    
+    cached_data = get_cached_session_data(msg_info);
+    if (cached_data->mbox_quoted_mb == NULL) {
+      res = MAIL_ERROR_BAD_STATE;
+      goto err;
+    }
+    
+    snprintf(filename_flags, PATH_MAX, "%s/%s/%s",
+        cached_data->mbox_flags_directory,
+        cached_data->mbox_quoted_mb, FLAGS_NAME);
+    
+    r = mail_cache_db_open_lock(filename_flags, &cache_db_flags);
+    if (r < 0) {
+      res = MAIL_ERROR_MEMORY;
+      goto err;
+    }
+    
+    mmapstr = mmap_string_new("");
+    if (mmapstr == NULL) {
+      res = MAIL_ERROR_MEMORY;
+      goto close_db_flags;
+    }
+    
+    if (msg_info->msg_index > folder->mb_written_uid) {
+      flags = mail_flags_new_empty();
+    }
+    else {
+      r = mboxdriver_get_cached_flags(cache_db_flags, mmapstr,
+          msg_info->msg_session,
+          msg_info->msg_index, &flags);
+      if (r != MAIL_NO_ERROR) {
+	flags = mail_flags_new_empty();
+	if (flags == NULL) {
+	  res = MAIL_ERROR_MEMORY;
+	  goto free_mmapstr;
+	}
+      }
+    }
+
+    mmap_string_free(mmapstr);
+    mail_cache_db_close_unlock(filename_flags, cache_db_flags);
+  }
+  
+  msg_info->msg_flags = flags;
+
+  * result = flags;
+
+  return MAIL_NO_ERROR;
+
+ free_mmapstr:
+  mmap_string_free(mmapstr);
+ close_db_flags:
+  mail_cache_db_close_unlock(filename_flags, cache_db_flags);
+ err:
+  return res;
+}
+
+static int mbox_fetch_header(mailmessage * msg_info,
+			   char ** result,
+			   size_t * result_len)
+{
+  struct generic_message_t * msg;
+  int r;
+  char * msg_content;
+  size_t msg_length;
+
+  msg = msg_info->msg_data;
+  if (msg->msg_message != NULL) {
+    return mailmessage_generic_fetch_header(msg_info, result, result_len);
+  }
+  else {
+    r = mboxdriver_fetch_header(get_ancestor_session(msg_info),
+				msg_info->msg_index,
+				&msg_content, &msg_length);
+    if (r != MAIL_NO_ERROR)
+      return r;
+    
+    * result = msg_content;
+    * result_len = msg_length;
+    
+    return MAIL_NO_ERROR;
+  }
+}
diff --git a/libetpan/src/driver/implementation/mbox/mboxdriver_cached_message.h b/libetpan/src/driver/implementation/mbox/mboxdriver_cached_message.h
new file mode 100644
index 0000000..144e2da
--- a/dev/null
+++ b/libetpan/src/driver/implementation/mbox/mboxdriver_cached_message.h
@@ -0,0 +1,52 @@
+/*
+ * libEtPan! -- a mail stuff library
+ *
+ * Copyright (C) 2001, 2005 - DINH Viet Hoa
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the libEtPan! project nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/*
+ * $Id$
+ */
+
+#ifndef MBOXDRIVER_CACHED_MESSAGE_H
+
+#define MBOXDRIVER_CACHED_MESSAGE_H
+
+#include <libetpan/mailmessage.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern mailmessage_driver * mbox_cached_message_driver;
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/libetpan/src/driver/implementation/mbox/mboxdriver_message.c b/libetpan/src/driver/implementation/mbox/mboxdriver_message.c
new file mode 100644
index 0000000..9bb5a18
--- a/dev/null
+++ b/libetpan/src/driver/implementation/mbox/mboxdriver_message.c
@@ -0,0 +1,225 @@
+/*
+ * libEtPan! -- a mail stuff library
+ *
+ * Copyright (C) 2001, 2005 - DINH Viet Hoa
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the libEtPan! project nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/*
+ * $Id$
+ */
+
+#include "mboxdriver_message.h"
+
+#include "mailmessage_tools.h"
+#include "mboxdriver_tools.h"
+#include "mboxdriver.h"
+#include "mailmbox.h"
+
+#include <unistd.h>
+#include <sys/mman.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <string.h>
+#include <stdlib.h>
+
+static int mbox_prefetch(mailmessage * msg_info);
+
+static void mbox_prefetch_free(struct generic_message_t * msg);
+
+static int mbox_initialize(mailmessage * msg_info);
+
+static int mbox_fetch_size(mailmessage * msg_info,
+			   size_t * result);
+
+static int mbox_fetch_header(mailmessage * msg_info,
+			   char ** result,
+			     size_t * result_len);
+
+static mailmessage_driver local_mbox_message_driver = {
+  .msg_name = "mbox",
+
+  .msg_initialize = mbox_initialize,
+  .msg_uninitialize = mailmessage_generic_uninitialize,
+
+  .msg_flush = mailmessage_generic_flush,
+  .msg_check = NULL,
+
+  .msg_fetch_result_free = mailmessage_generic_fetch_result_free,
+
+  .msg_fetch = mailmessage_generic_fetch,
+  .msg_fetch_header = mbox_fetch_header,
+  .msg_fetch_body = mailmessage_generic_fetch_body,
+  .msg_fetch_size = mbox_fetch_size,
+  .msg_get_bodystructure = mailmessage_generic_get_bodystructure,
+  .msg_fetch_section = mailmessage_generic_fetch_section,
+  .msg_fetch_section_header = mailmessage_generic_fetch_section_header,
+  .msg_fetch_section_mime = mailmessage_generic_fetch_section_mime,
+  .msg_fetch_section_body = mailmessage_generic_fetch_section_body,
+  .msg_fetch_envelope = mailmessage_generic_fetch_envelope,
+
+  .msg_get_flags = NULL,
+};
+
+mailmessage_driver * mbox_message_driver = &local_mbox_message_driver;
+
+static inline struct mbox_session_state_data * get_data(mailmessage * msg)
+{
+  return msg->msg_session->sess_data;
+}
+
+static inline struct mailmbox_folder * get_mbox_session(mailmessage * msg)
+{
+  return get_data(msg)->mbox_folder;
+}
+
+
+static int mbox_prefetch(mailmessage * msg_info)
+{
+  struct generic_message_t * msg;
+  int r;
+  char * msg_content;
+  size_t msg_length;
+
+  r = mboxdriver_fetch_msg(msg_info->msg_session, msg_info->msg_index,
+			   &msg_content, &msg_length);
+  if (r != MAIL_NO_ERROR)
+    return r;
+
+  msg = msg_info->msg_data;
+
+  msg->msg_message = msg_content;
+  msg->msg_length = msg_length;
+
+  return MAIL_NO_ERROR;
+}
+
+static void mbox_prefetch_free(struct generic_message_t * msg)
+{
+  if (msg->msg_message != NULL) {
+    mmap_string_unref(msg->msg_message);
+    msg->msg_message = NULL;
+  }
+}
+
+static int mbox_initialize(mailmessage * msg_info)
+{
+  struct generic_message_t * msg;
+  int r;
+  char * uid;
+  char static_uid[PATH_MAX];
+  struct mailmbox_msg_info * info;
+  struct mailmbox_folder * folder;
+  int res;
+  chashdatum key;
+  chashdatum data;
+  
+  folder = get_mbox_session(msg_info);
+  if (folder == NULL) {
+    res = MAIL_ERROR_BAD_STATE;
+    goto err;
+  }
+  
+  key.data = &msg_info->msg_index;
+  key.len = sizeof(msg_info->msg_index);
+  
+  r = chash_get(folder->mb_hash, &key, &data);
+  if (r < 0) {
+    res = MAIL_ERROR_MSG_NOT_FOUND;
+    goto err;
+  }
+  
+  info = data.data;
+  
+  snprintf(static_uid, PATH_MAX, "%u-%lu",
+      msg_info->msg_index, (unsigned long) info->msg_body_len);
+  uid = strdup(static_uid);
+  if (uid == NULL) {
+    res = MAIL_ERROR_MEMORY;
+    goto err;
+  }
+  
+  r = mailmessage_generic_initialize(msg_info);
+  if (r != MAIL_NO_ERROR) {
+    free(uid);
+    res = r;
+    goto err;
+  }
+  
+  msg = msg_info->msg_data;
+  msg->msg_prefetch = mbox_prefetch;
+  msg->msg_prefetch_free = mbox_prefetch_free;
+  msg_info->msg_uid = uid;
+  
+  return MAIL_NO_ERROR;
+  
+ err:
+  return res;
+}
+
+static int mbox_fetch_size(mailmessage * msg_info,
+			   size_t * result)
+{
+  int r;
+  size_t size;
+
+  r = mboxdriver_fetch_size(msg_info->msg_session,
+      msg_info->msg_index, &size);
+  if (r != MAIL_NO_ERROR)
+    return r;
+  
+  * result = size;
+
+  return MAIL_NO_ERROR;
+}
+
+static int mbox_fetch_header(mailmessage * msg_info,
+			   char ** result,
+			   size_t * result_len)
+{
+  struct generic_message_t * msg;
+  int r;
+  char * msg_content;
+  size_t msg_length;
+
+  msg = msg_info->msg_data;
+  if (msg->msg_message != NULL) {
+    return mailmessage_generic_fetch_header(msg_info, result, result_len);
+  }
+  else {
+    r = mboxdriver_fetch_header(msg_info->msg_session, msg_info->msg_index,
+				&msg_content, &msg_length);
+    if (r != MAIL_NO_ERROR)
+      return r;
+    
+    * result = msg_content;
+    * result_len = msg_length;
+    
+    return MAIL_NO_ERROR;
+  }
+}
diff --git a/libetpan/src/driver/implementation/mbox/mboxdriver_message.h b/libetpan/src/driver/implementation/mbox/mboxdriver_message.h
new file mode 100644
index 0000000..686e46e
--- a/dev/null
+++ b/libetpan/src/driver/implementation/mbox/mboxdriver_message.h
@@ -0,0 +1,52 @@
+/*
+ * libEtPan! -- a mail stuff library
+ *
+ * Copyright (C) 2001, 2005 - DINH Viet Hoa
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the libEtPan! project nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/*
+ * $Id$
+ */
+
+#ifndef MBOXDRIVER_MESSAGE_H
+
+#define MBOXDRIVER_MESSAGE_H
+
+#include <libetpan/mboxdriver_types.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern mailmessage_driver * mbox_message_driver;
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/libetpan/src/driver/implementation/mbox/mboxdriver_tools.c b/libetpan/src/driver/implementation/mbox/mboxdriver_tools.c
new file mode 100644
index 0000000..dc38cbd
--- a/dev/null
+++ b/libetpan/src/driver/implementation/mbox/mboxdriver_tools.c
@@ -0,0 +1,435 @@
+/*
+ * libEtPan! -- a mail stuff library
+ *
+ * Copyright (C) 2001, 2005 - DINH Viet Hoa
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the libEtPan! project nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/*
+ * $Id$
+ */
+
+#include "mboxdriver_tools.h"
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+
+#include "maildriver_types.h"
+#include "mailmbox.h"
+#include "mboxdriver_cached.h"
+#include "mboxdriver.h"
+#include "generic_cache.h"
+#include "mailmessage.h"
+#include "imfcache.h"
+#include "mail_cache_db.h"
+
+static inline struct mbox_session_state_data *
+session_get_data(mailsession * session)
+{
+  return session->sess_data;
+}
+
+static inline struct mailmbox_folder *
+session_get_mbox_session(mailsession * session)
+{
+  return session_get_data(session)->mbox_folder;
+}
+
+static inline struct mbox_cached_session_state_data *
+cached_session_get_data(mailsession * session)
+{
+  return session->sess_data;
+}
+
+static inline mailsession *
+cached_session_get_ancestor(mailsession * session)
+{
+  return cached_session_get_data(session)->mbox_ancestor;
+}
+
+static inline struct mbox_session_state_data *
+cached_session_get_ancestor_data(mailsession * session)
+{
+  return cached_session_get_ancestor(session)->sess_data;
+}
+
+static inline struct mailmbox_folder *
+cached_session_get_mbox_session(mailsession * session)
+{
+  return session_get_mbox_session(cached_session_get_ancestor(session));
+}
+
+
+int mboxdriver_mbox_error_to_mail_error(int error)
+{
+  switch (error) {
+  case MAILMBOX_NO_ERROR:
+    return MAIL_NO_ERROR;
+
+  case MAILMBOX_ERROR_PARSE:
+    return MAIL_ERROR_PARSE;
+
+  case MAILMBOX_ERROR_INVAL:
+    return MAIL_ERROR_INVAL;
+
+  case MAILMBOX_ERROR_FILE_NOT_FOUND:
+    return MAIL_ERROR_PARSE;
+
+  case MAILMBOX_ERROR_MEMORY:
+    return MAIL_ERROR_MEMORY;
+
+  case MAILMBOX_ERROR_TEMPORARY_FILE:
+    return MAIL_ERROR_PARSE;
+
+  case MAILMBOX_ERROR_FILE:
+    return MAIL_ERROR_FILE;
+
+  case MAILMBOX_ERROR_MSG_NOT_FOUND:
+    return MAIL_ERROR_MSG_NOT_FOUND;
+
+  case MAILMBOX_ERROR_READONLY:
+    return MAIL_ERROR_READONLY;
+
+  default:
+    return MAIL_ERROR_INVAL;
+  }
+}
+
+int mboxdriver_fetch_msg(mailsession * session, uint32_t index,
+			 char ** result, size_t * result_len)
+{
+  int r;
+  char * msg_content;
+  size_t msg_length;
+  struct mailmbox_folder * folder;
+
+  folder = session_get_mbox_session(session);
+  if (folder == NULL)
+    return MAIL_ERROR_BAD_STATE;
+
+  r = mailmbox_fetch_msg(folder, index, &msg_content, &msg_length);
+  if (r != MAILMBOX_NO_ERROR)
+    return mboxdriver_mbox_error_to_mail_error(r);
+
+  * result = msg_content;
+  * result_len = msg_length;
+
+  return MAIL_NO_ERROR;
+}
+
+
+int mboxdriver_fetch_size(mailsession * session, uint32_t index,
+			  size_t * result)
+{
+  struct mailmbox_folder * folder;
+  int r;
+  char * data;
+  size_t len;
+  int res;
+
+  folder = session_get_mbox_session(session);
+  if (folder == NULL) {
+    res = MAIL_ERROR_FETCH;
+    goto err;
+  }
+
+  r = mailmbox_validate_read_lock(folder);
+  if (r != MAILMBOX_NO_ERROR) {
+    res = mboxdriver_mbox_error_to_mail_error(r);
+    goto err;
+  }
+
+  r = mailmbox_fetch_msg_no_lock(folder, index, &data, &len);
+  if (r != MAILMBOX_NO_ERROR) {
+    res = mboxdriver_mbox_error_to_mail_error(r);
+    goto unlock;
+  }
+
+  mailmbox_read_unlock(folder);
+
+  * result = len;
+
+  return MAIL_NO_ERROR;
+
+ unlock:
+  mailmbox_read_unlock(folder);
+ err:
+  return res;
+}
+
+
+int
+mboxdriver_get_cached_flags(struct mail_cache_db * cache_db,
+    MMAPString * mmapstr,
+    mailsession * session,
+    uint32_t num,
+    struct mail_flags ** result)
+{
+  int r;
+  char keyname[PATH_MAX];
+  struct mail_flags * flags;
+  int res;
+  struct mailmbox_msg_info * info;
+  struct mailmbox_folder * folder;
+  chashdatum key;
+  chashdatum data;
+
+  folder = cached_session_get_mbox_session(session);
+  if (folder == NULL) {
+    res = MAIL_ERROR_BAD_STATE;
+    goto err;
+  }
+  
+  key.data = &num;
+  key.len = sizeof(num);
+  
+  r = chash_get(folder->mb_hash, &key, &data);
+  if (r < 0) {
+    res = MAIL_ERROR_MSG_NOT_FOUND;
+    goto err;
+  }
+  
+  info = data.data;
+
+  snprintf(keyname, PATH_MAX, "%u-%lu-flags", num,
+      (unsigned long) info->msg_body_len);
+
+  r = generic_cache_flags_read(cache_db, mmapstr, keyname, &flags);
+  if (r != MAIL_NO_ERROR) {
+    res = r;
+    goto err;
+  }
+
+  * result = flags;
+
+  return MAIL_NO_ERROR;
+
+ err:
+  return res;
+}
+
+int
+mboxdriver_write_cached_flags(struct mail_cache_db * cache_db,
+    MMAPString * mmapstr,
+    char * uid,
+    struct mail_flags * flags)
+{
+  int r;
+  char keyname[PATH_MAX];
+  int res;
+
+  snprintf(keyname, PATH_MAX, "%s-flags", uid);
+
+  r = generic_cache_flags_write(cache_db, mmapstr, keyname, flags);
+  if (r != MAIL_NO_ERROR) {
+    res = r;
+    goto err;
+  }
+
+  return MAIL_NO_ERROR;
+
+ err:
+  return res;
+}
+
+
+int mboxdriver_fetch_header(mailsession * session, uint32_t index,
+			    char ** result, size_t * result_len)
+{
+  int r;
+  char * msg_content;
+  size_t msg_length;
+  struct mailmbox_folder * folder;
+
+  folder = session_get_mbox_session(session);
+  if (folder == NULL)
+    return MAIL_ERROR_BAD_STATE;
+
+  r = mailmbox_fetch_msg_headers(folder, index, &msg_content, &msg_length);
+  if (r != MAILMBOX_NO_ERROR)
+    return mboxdriver_mbox_error_to_mail_error(r);
+
+  * result = msg_content;
+  * result_len = msg_length;
+
+  return MAIL_NO_ERROR;
+}
+
+int mbox_get_locked_messages_list(struct mailmbox_folder * folder,
+    mailsession * session, 
+    mailmessage_driver * driver,
+    int (* lock)(struct mailmbox_folder *),
+    int (* unlock)(struct mailmbox_folder *),
+    struct mailmessage_list ** result)
+{
+  struct mailmessage_list * env_list;
+  unsigned int i;
+  int r;
+  int res;
+  carray * tab;
+
+  tab = carray_new(128);
+  if (tab == NULL) {
+    res = MAIL_ERROR_MEMORY;
+    goto err;
+  }
+
+  r = lock(folder);
+  if (r != MAIL_NO_ERROR) {
+    res = r;
+    goto free;
+  }
+
+  for(i = 0 ; i < carray_count(folder->mb_tab) ; i ++) {
+    struct mailmbox_msg_info * msg_info;
+    mailmessage * msg;
+
+    msg_info = carray_get(folder->mb_tab, i);
+    if (msg_info == NULL)
+      continue;
+
+    if (msg_info->msg_deleted)
+      continue;
+
+    msg = mailmessage_new();
+    if (msg == NULL) {
+      res = MAIL_ERROR_MEMORY;
+      goto unlock;
+    }
+
+    r = mailmessage_init(msg, session, driver, msg_info->msg_uid,
+        msg_info->msg_size - msg_info->msg_start_len);
+    if (r != MAIL_NO_ERROR) {
+      res = r;
+      goto unlock;
+    }
+
+    r = carray_add(tab, msg, NULL);
+    if (r < 0) {
+      mailmessage_free(msg);
+      res = MAIL_ERROR_MEMORY;
+      goto unlock;
+    }
+  }
+  
+  env_list = mailmessage_list_new(tab);
+  if (env_list == NULL) {
+    res = MAIL_ERROR_MEMORY;
+    goto unlock;
+  }
+
+  unlock(folder);
+
+  * result = env_list;
+
+  return MAIL_NO_ERROR;
+
+ unlock:
+  unlock(folder);
+ free:
+  for(i = 0 ; i < carray_count(tab) ; i ++)
+    mailmessage_free(carray_get(tab, i));
+  carray_free(tab);
+ err:
+  return res;
+}
+
+static int release_read_mbox(struct mailmbox_folder * folder)
+{
+  int r;
+  
+  r = mailmbox_read_unlock(folder);
+  return mboxdriver_mbox_error_to_mail_error(r);
+}
+
+static int acquire_read_mbox(struct mailmbox_folder * folder)
+{
+  int r;
+
+  r = mailmbox_validate_read_lock(folder);
+  return mboxdriver_mbox_error_to_mail_error(r);
+}
+
+static int release_write_mbox(struct mailmbox_folder * folder)
+{
+  int r;
+  
+  r = mailmbox_write_unlock(folder);
+  return mboxdriver_mbox_error_to_mail_error(r);
+}
+
+static int acquire_write_mbox(struct mailmbox_folder * folder)
+{
+  int r;
+  int res;
+
+  r = mailmbox_validate_write_lock(folder);
+  if (r != MAILMBOX_NO_ERROR) {
+    res = mboxdriver_mbox_error_to_mail_error(r);
+    goto err;
+  }
+  
+  if (folder->mb_written_uid < folder->mb_max_uid) {
+    r = mailmbox_expunge_no_lock(folder);
+    if (r != MAILMBOX_NO_ERROR) {
+      res = mboxdriver_mbox_error_to_mail_error(r);
+      goto unlock;
+    }
+  }
+  
+  return MAIL_NO_ERROR;
+
+ unlock:
+  mailmbox_write_unlock(folder);
+ err:
+  return res;
+}
+
+/* get message list with all valid written UID */
+
+int mbox_get_uid_messages_list(struct mailmbox_folder * folder,
+    mailsession * session, 
+    mailmessage_driver * driver,
+    struct mailmessage_list ** result)
+{
+  return mbox_get_locked_messages_list(folder, session, driver,
+      acquire_write_mbox, release_write_mbox, result);
+}
+
+
+/* get message list */
+
+int mbox_get_messages_list(struct mailmbox_folder * folder,
+    mailsession * session, 
+    mailmessage_driver * driver,
+    struct mailmessage_list ** result)
+{
+  return mbox_get_locked_messages_list(folder, session, driver,
+      acquire_read_mbox, release_read_mbox, result);
+}
diff --git a/libetpan/src/driver/implementation/mbox/mboxdriver_tools.h b/libetpan/src/driver/implementation/mbox/mboxdriver_tools.h
new file mode 100644
index 0000000..eebf98c
--- a/dev/null
+++ b/libetpan/src/driver/implementation/mbox/mboxdriver_tools.h
@@ -0,0 +1,85 @@
+/*
+ * libEtPan! -- a mail stuff library
+ *
+ * Copyright (C) 2001, 2005 - DINH Viet Hoa
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the libEtPan! project nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/*
+ * $Id$
+ */
+
+#ifndef MBOXDRIVER_TOOLS_H
+
+#define MBOXDRIVER_TOOLS_H
+
+#include "mail_cache_db_types.h"
+#include "mboxdriver_types.h"
+#include "mailmbox.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+int mboxdriver_mbox_error_to_mail_error(int error);
+
+int mboxdriver_fetch_msg(mailsession * session, uint32_t index,
+			 char ** result, size_t * result_len);
+
+int mboxdriver_fetch_size(mailsession * session, uint32_t index,
+			  size_t * result);
+
+int
+mboxdriver_get_cached_flags(struct mail_cache_db * cache_db,
+    MMAPString * mmapstr,
+    mailsession * session,
+    uint32_t num,
+    struct mail_flags ** result);
+
+int
+mboxdriver_write_cached_flags(struct mail_cache_db * cache_db,
+    MMAPString * mmapstr,
+    char * uid, struct mail_flags * flags);
+
+int mbox_get_uid_messages_list(struct mailmbox_folder * folder,
+    mailsession * session, 
+    mailmessage_driver * driver,
+    struct mailmessage_list ** result);
+
+int mbox_get_messages_list(struct mailmbox_folder * folder,
+			   mailsession * session, 
+			   mailmessage_driver * driver,
+			   struct mailmessage_list ** result);
+
+int mboxdriver_fetch_header(mailsession * session, uint32_t index,
+			    char ** result, size_t * result_len);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/libetpan/src/driver/implementation/mbox/mboxdriver_types.h b/libetpan/src/driver/implementation/mbox/mboxdriver_types.h
new file mode 100644
index 0000000..23b9acf
--- a/dev/null
+++ b/libetpan/src/driver/implementation/mbox/mboxdriver_types.h
@@ -0,0 +1,107 @@
+/*
+ * libEtPan! -- a mail stuff library
+ *
+ * Copyright (C) 2001, 2005 - DINH Viet Hoa
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the libEtPan! project nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/*
+ * $Id$
+ */
+
+#ifndef MBOXDRIVER_TYPES_H
+
+#define MBOXDRIVER_TYPES_H
+
+#include <libetpan/maildriver_types.h>
+#include <libetpan/mailmbox.h>
+#include <libetpan/mailstorage_types.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* mbox driver */
+
+enum {
+  MBOXDRIVER_SET_READ_ONLY = 1,
+  MBOXDRIVER_SET_NO_UID,
+};
+
+struct mbox_session_state_data {
+  struct mailmbox_folder * mbox_folder;
+  int mbox_force_read_only;
+  int mbox_force_no_uid;
+};
+
+/* cached version */
+
+enum {
+  /* the mapping of the parameters should be the same as for mbox */
+  MBOXDRIVER_CACHED_SET_READ_ONLY = 1,
+  MBOXDRIVER_CACHED_SET_NO_UID,
+  /* cache specific */
+  MBOXDRIVER_CACHED_SET_CACHE_DIRECTORY,
+  MBOXDRIVER_CACHED_SET_FLAGS_DIRECTORY,
+};
+
+struct mbox_cached_session_state_data {
+  mailsession * mbox_ancestor;
+  char * mbox_quoted_mb;
+  char mbox_cache_directory[PATH_MAX];
+  char mbox_flags_directory[PATH_MAX];
+  struct mail_flags_store * mbox_flags_store;
+};
+
+/* mbox storage */
+
+/*
+  mbox_mailstorage is the state data specific to the mbox storage.
+
+  - pathname is the filename that contains the mailbox.
+  
+  - cached if this value is != 0, a persistant cache will be
+      stored on local system.
+  
+  - cache_directory is the location of the cache.
+
+  - flags_directory is the location of the flags.
+*/
+
+struct mbox_mailstorage {
+  char * mbox_pathname;
+  
+  int mbox_cached;
+  char * mbox_cache_directory;
+  char * mbox_flags_directory;
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/libetpan/src/driver/implementation/mbox/mboxstorage.c b/libetpan/src/driver/implementation/mbox/mboxstorage.c
new file mode 100644
index 0000000..3944c3b
--- a/dev/null
+++ b/libetpan/src/driver/implementation/mbox/mboxstorage.c
@@ -0,0 +1,192 @@
+/*
+ * libEtPan! -- a mail stuff library
+ *
+ * Copyright (C) 2001, 2005 - DINH Viet Hoa
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the libEtPan! project nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/*
+ * $Id$
+ */
+
+#include "mboxstorage.h"
+
+#include "mail.h"
+#include "mailmessage.h"
+#include "mboxdriver.h"
+#include "mboxdriver_cached.h"
+#include "maildriver.h"
+
+#include <stdlib.h>
+#include <string.h>
+
+/* mbox storage */
+
+static int mbox_mailstorage_connect(struct mailstorage * storage);
+static int
+mbox_mailstorage_get_folder_session(struct mailstorage * storage,
+    char * pathname, mailsession ** result);
+static void mbox_mailstorage_uninitialize(struct mailstorage * storage);
+
+static mailstorage_driver mbox_mailstorage_driver = {
+  .sto_name               = "mbox",
+  .sto_connect            = mbox_mailstorage_connect,
+  .sto_get_folder_session = mbox_mailstorage_get_folder_session,
+  .sto_uninitialize       = mbox_mailstorage_uninitialize,
+};
+
+int mbox_mailstorage_init(struct mailstorage * storage,
+    char * mbox_pathname, int mbox_cached,
+    char * mbox_cache_directory, char * mbox_flags_directory)
+{
+  struct mbox_mailstorage * mbox_storage;
+
+  mbox_storage = malloc(sizeof(* mbox_storage));
+  if (mbox_storage == NULL)
+    goto err;
+
+  mbox_storage->mbox_pathname = strdup(mbox_pathname);
+  if (mbox_storage->mbox_pathname == NULL)
+    goto free;
+
+  mbox_storage->mbox_cached = mbox_cached;
+
+  if (mbox_cached && (mbox_cache_directory != NULL) &&
+      (mbox_flags_directory != NULL)) {
+    mbox_storage->mbox_cache_directory = strdup(mbox_cache_directory);
+    if (mbox_storage->mbox_cache_directory == NULL)
+      goto free_pathname;
+
+    mbox_storage->mbox_flags_directory = strdup(mbox_flags_directory);
+    if (mbox_storage->mbox_flags_directory == NULL)
+      goto free_cache_directory;
+  }
+  else {
+    mbox_storage->mbox_cached = FALSE;
+    mbox_storage->mbox_cache_directory = NULL;
+    mbox_storage->mbox_flags_directory = NULL;
+  }
+
+  storage->sto_data = mbox_storage;
+  storage->sto_driver = &mbox_mailstorage_driver;
+  
+  return MAIL_NO_ERROR;
+
+ free_cache_directory:
+  free(mbox_storage->mbox_cache_directory);
+ free_pathname:
+  free(mbox_storage->mbox_pathname);
+ free:
+  free(mbox_storage);
+ err:
+  return MAIL_ERROR_MEMORY;
+}
+
+static void mbox_mailstorage_uninitialize(struct mailstorage * storage)
+{
+  struct mbox_mailstorage * mbox_storage;
+
+  mbox_storage = storage->sto_data;
+  if (mbox_storage->mbox_flags_directory != NULL)
+    free(mbox_storage->mbox_flags_directory);
+  if (mbox_storage->mbox_cache_directory != NULL)
+    free(mbox_storage->mbox_cache_directory);
+  free(mbox_storage->mbox_pathname);
+  free(mbox_storage);
+  
+  storage->sto_data = NULL;
+}
+
+static int mbox_mailstorage_connect(struct mailstorage * storage)
+{
+  struct mbox_mailstorage * mbox_storage;
+  mailsession_driver * driver;
+  int r;
+  int res;
+  mailsession * session;
+
+  mbox_storage = storage->sto_data;
+
+  if (mbox_storage->mbox_cached)
+    driver = mbox_cached_session_driver;
+  else
+    driver = mbox_session_driver;
+
+  session = mailsession_new(driver);
+  if (session == NULL) {
+    res = MAIL_ERROR_MEMORY;
+    goto err;
+  }
+
+  if (mbox_storage->mbox_cached) {
+    r = mailsession_parameters(session,
+			       MBOXDRIVER_CACHED_SET_CACHE_DIRECTORY,
+			       mbox_storage->mbox_cache_directory);
+    if (r != MAIL_NO_ERROR) {
+      res = r;
+      goto free;
+    }
+
+    r = mailsession_parameters(session,
+			       MBOXDRIVER_CACHED_SET_FLAGS_DIRECTORY,
+			       mbox_storage->mbox_flags_directory);
+    if (r != MAIL_NO_ERROR) {
+      res = r;
+      goto free;
+    }
+  }
+  
+  r = mailsession_connect_path(session, mbox_storage->mbox_pathname);
+  switch (r) {
+  case MAIL_NO_ERROR_NON_AUTHENTICATED:
+  case MAIL_NO_ERROR_AUTHENTICATED:
+  case MAIL_NO_ERROR:
+    break;
+  default:
+    res = r;
+    goto free;
+  }
+  
+  storage->sto_session = session;
+
+  return MAIL_NO_ERROR;
+
+ free:
+  mailsession_free(session);
+ err:
+  return res;
+}
+
+static int
+mbox_mailstorage_get_folder_session(struct mailstorage * storage,
+    char * pathname, mailsession ** result)
+{
+  * result = storage->sto_session;
+
+  return MAIL_NO_ERROR;
+}
+
diff --git a/libetpan/src/driver/implementation/mbox/mboxstorage.h b/libetpan/src/driver/implementation/mbox/mboxstorage.h
new file mode 100644
index 0000000..45aed7b
--- a/dev/null
+++ b/libetpan/src/driver/implementation/mbox/mboxstorage.h
@@ -0,0 +1,69 @@
+/*
+ * libEtPan! -- a mail stuff library
+ *
+ * Copyright (C) 2001, 2005 - DINH Viet Hoa
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the libEtPan! project nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/*
+ * $Id$
+ */
+
+#ifndef MBOXSTORAGE_H
+
+#define MBOXSTORAGE_H
+
+#include <libetpan/mboxdriver_types.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+  mbox_mailstorage_init is the constructor for a mbox storage.
+
+  @param storage this is the storage to initialize.
+  
+  @param pathname is the filename that contains the mailbox.
+  
+  @param cached if this value is != 0, a persistant cache will be
+    stored on local system.
+
+  @param cache_directory is the location of the cache
+
+  @param flags_directory is the location of the flags
+*/
+
+int mbox_mailstorage_init(struct mailstorage * storage,
+    char * mb_pathname, int mb_cached,
+    char * mb_cache_directory, char * mb_flags_directory);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif