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/*
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 * $Id: services.h,v 0.56 2002/12/30 14:09:44 ceder Exp $
 * Copyright (C) 1991-1999, 2001-2002  Lysator Academic Computer Association.
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 *
 * This file is part of the LysKOM server.
 * 
 * LysKOM is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by 
 * the Free Software Foundation; either version 1, or (at your option) 
 * any later version.
 * 
 * LysKOM is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with LysKOM; see the file COPYING.  If not, write to
 * Lysator, c/o ISY, Linkoping University, S-581 83 Linkoping, SWEDEN,
 * or the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, 
 * MA 02139, USA.
 *
 * Please mail bug reports to bug-lyskom@lysator.liu.se. 
 */
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/*
 *  services.h  --  All the services the LysKOM server makes available
 *		    for clients.
 *
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 *  These functions match the requests defined in doc/Protocol-A.texi.
 *  See the descriptions in that file for documentation.
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 *
 *  Created by ceder 1990-03-23
 */


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#ifndef  SERVICES_H_ALREADY_INCLUDED
#define  SERVICES_H_ALREADY_INCLUDED
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/*
 * Session control
 */

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extern  Success
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login_old (Pers_no	person,
	   const String	passwd);
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extern  Success
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login (Pers_no		person,
       const String	passwd,
       Bool		invisible);
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extern  Success
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logout (void);	/* can never fail */
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/* Change Conference */
extern  Success
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change_conference (Conf_no conference);
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/* Change name of a person or conference. */
extern  Success
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change_name (Conf_no	  conf_no,
	     const String new_name);
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extern  Success
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change_what_i_am_doing (String  what_am_i_doing);
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/* Client version: one call to set, two to retrieve. */
extern  Success
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set_client_version (const String client_name,
		    const String client_version);
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extern  Success
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get_client_name (Session_no session_no,
		 String *result);
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extern  Success
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get_client_version (Session_no session_no,
		    String *result);
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/* Get info about a session */

extern  Success
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get_session_info  (Session_no session_no,
		   Session_info *result);
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extern  Success
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get_session_info_ident  (Session_no session_no,
			 Session_info_ident *result);
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extern  Success
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get_static_session_info (Session_no session_no,
			 Static_session_info *result);
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/*
 * Disconnect a session. You can disconnect your own session (even if
 * you are not logged in) and any session where you are supervisor of
 * the user that is logged in on that session.
 */
extern  Success
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disconnect (Session_no session_no);
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/*
 * Returns your session number
 */
extern  Success
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who_am_i (Session_no *session_no);
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/*
 * Set state in the session
 */

extern  Success
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user_active (void);
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/******************************
*     Person-related calls    *
******************************/

/*
 *  Create a new person.  Returns 0 if any error occured.
 */
extern  Pers_no
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create_person_old (const String  name,
		   const String  passwd);
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extern Pers_no
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create_person (const String name,
	       const String passwd,
	       Personal_flags flags,
	       Aux_item_list *conf_aux);
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extern Success
set_pers_flags(Pers_no pers_no,
               Personal_flags flags);

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/* Obsolete call; use get_person_stat instead. */
extern  Success
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get_person_stat_old (Pers_no		  person,
		     int		  mask,
		     Person		* result);
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extern  Success
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get_person_stat (Pers_no	  person,
		 Person		* result);
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extern  Success
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get_created_texts (Pers_no		  person,
		   Local_text_no	  first,
		   unsigned long	  no_of_texts,
		   L2g_iterator 	 *created_texts);
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extern  Success
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map_created_texts (Pers_no	  person,
		   Local_text_no  first,
		   unsigned long  no_of_texts,
		   Text_mapping  *created_texts);
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extern  Success
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get_membership_old (Pers_no		  person,
		    unsigned short	  first,
		    unsigned short	  no_of_confs,
		    Bool		  want_read_texts,
		    Membership_list	* memberships);
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extern  Success
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get_membership_10(Pers_no           person,
		  unsigned short    first,
		  unsigned short    no_of_confs,
		  Bool		    want_read_texts,
		  Membership_list * memberships);
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extern  Success
get_membership(Pers_no           person,
	       unsigned short    first,
	       unsigned short    no_of_confs,
	       Bool              want_read_ranges,
	       unsigned long     max_ranges,
	       Membership_list * memberships);

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extern  Success
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set_priv_bits (Pers_no	 person,
	       Priv_bits privileges);
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/*  Set the password of PERSON to NEW_PWD.  OLD_PWD is the password
 *  of the person who does the set.  This is not necessarily the
 *  same as the one who gets it set.	*/
extern  Success
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set_passwd (Pers_no	   person,
	    const String   old_pwd,
	    const String   new_pwd);
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/* You can query for unread texts without logging in. */
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extern  Success
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query_read_texts_old (Pers_no	     pers_no,
		      Conf_no	     conf_no,
		      Membership   * result  );
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extern  Success
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query_read_texts_10(Pers_no      pers_no,
		    Conf_no      conf_no,
		    Membership * result);
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extern  Success
query_read_texts(Pers_no        pers_no,
		 Conf_no        conf_no,
		 Bool           want_read_ranges,
		 unsigned long  max_ranges,
		 Membership    *result);


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extern Success
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get_unread_confs(Pers_no       pers_no,
		 Conf_no_list *result);
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extern Success
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set_user_area(Pers_no	pers_no,
	      Text_no	user_area);
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/****************************************
*	Conference-related calls	*
****************************************/


extern  Conf_no
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create_conf_old (const String	  name,
		 Conf_type	  type);
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extern Conf_no
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create_conf (const String name,
	     Conf_type type,
	     Aux_item_list *aux);
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extern Success
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modify_conf_info (Conf_no conf_no,
		  Number_list *items_to_delete,
		  Aux_item_list *items_to_add);
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/*  Delete a conference.  Also used to delete persons.  */
extern  Success
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delete_conf (Conf_no	conf);
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/*
 *  Map conference name to number.  Returns a list of the conferences
 *  that match the name NAME. Can be done without logging in.
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 * This should be phased out.
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 */
extern  Success
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lookup_name (const String   name,
	     Conf_list_old *result);
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extern Success
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lookup_z_name (const String name,
	       int want_persons,
	       int want_confs,
	       Conf_z_info_list *result);
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/* Use these two lookup-calls instead of lookup_name */
extern  Success
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lookup_person (const String  pattern,
	       Conf_no_list  *result);
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extern  Success
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lookup_conf (const String  pattern,
	     Conf_no_list  *result);
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/* Two functions for matching regexps. */
extern  Success
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re_lookup_person (const String  regexp,
		  Conf_no_list  *result);
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extern  Success
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re_lookup_conf (const String  regexp,
		Conf_no_list  *result);
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extern  Success
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re_z_lookup (const String      regexp,
	     int               want_persons,
	     int	       want_confs,
	     Conf_z_info_list *result);
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extern Success
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get_collate_table (String * result);
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extern  Success
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get_conf_stat_older (Conf_no	 conf_no,
		     int	 mask,
		     Conference *result);
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extern  Success
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get_conf_stat_old (Conf_no		  conf_no,
		   Conference		* result);
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extern  Success
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get_conf_stat (Conf_no		  conf_no,
	       Conference	* result);
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extern Success
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get_uconf_stat (Conf_no		  conf_no,
		Small_conf	* result);
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extern  Success
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get_members (Conf_no	      conf,
	     unsigned short   first,
	     unsigned short   no_of_members,
	     Member_list    * members);
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extern  Success
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get_members_old (Conf_no	  conf,
		 unsigned short   first,
		 unsigned short   no_of_members,
		 Member_list	* members	);
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/* add_member is also used to change the priority of a conference */
extern  Success
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add_member (Conf_no		conf_no,
	    Pers_no		pers_no,
	    unsigned char	priority,
	    unsigned short	where, /* Range of where is [0..] */
	    Membership_type   * type);
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extern  Success
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add_member_old (Conf_no		conf_no,
		Pers_no		pers_no,
		unsigned char	priority,
		unsigned short	where	); /* Range of where is [0..] */
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extern Success
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set_membership_type (Pers_no          pers_no,
		     Conf_no          conf_no,
		     Membership_type *type   );
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extern  Success
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sub_member (Conf_no	conf_no,
	    Pers_no	pers_no);
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/*
 * Tell the server that I want to mark/unmark texts as read so that I
 * get no_of_unread unread texts in conf_no.
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 *
 * The new alternative function marks last_read as the last read local
 * text. Use this one to avoid race conditions.
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 */
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extern  Success
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set_unread (Conf_no   conf_no,
	    Text_no   no_of_unread);
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extern  Success
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set_last_read (Conf_no       conf_no,
	       Local_text_no last_read);
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/*
 * set_presentation and set_etc_motd also does some magic with the
 * no_of_marks field in the Text_stat structure of the old and new text.
 */ 

extern  Success
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set_presentation (Conf_no   conf_no,
		  Text_no   text_no); /* 0 to delete pres. */
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extern  Success
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set_etc_motd (Conf_no	  conf_no,
	      Text_no	  text_no);
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extern  Success
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set_supervisor (Conf_no	  conf_no,
		Conf_no	  admin	);
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extern  Success
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set_permitted_submitters (Conf_no	  conf_no,
			  Conf_no	  perm_sub);
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extern  Success
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set_super_conf (Conf_no	  conf_no,
		Conf_no	  super_conf);
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extern  Success
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set_conf_type (Conf_no	  conf_no,
	       Conf_type  type	);
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extern  Success
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set_garb_nice (Conf_no	  conf_no,
	       Garb_nice  days); /* number of days */
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extern  Success
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set_expire (Conf_no	  conf_no,
	    Garb_nice	  expire); /* number of days */
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extern Success
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set_keep_commented(Conf_no	conf_no,
                   Garb_nice	keep_commented);	/* number of days */
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/********************************
*     Calls to handle marks     *
********************************/


extern  Success
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get_marks (Mark_list *result);
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/*
 *  Will fail if the user is not allowed to read the text.
 */
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/* This function uses mark_type==0 to delete the mark. */
extern  Success
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mark_text_old (Text_no	  	  text,
	       unsigned char	  mark_type);
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/* Using this function, you can set mark_type==0. */
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extern  Success
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mark_text (Text_no	  text,
	   unsigned char  mark_type);
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/* Remove a mark, reporting an error if you had not marked the text. */
extern  Success
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unmark_text (Text_no	  text);
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/*******************************
*     Calls to handle texts    *
*******************************/


extern  Success
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get_text (Text_no	  text,
	  String_size	  start_char,
	  String_size	  end_char,
	  String	* result);
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extern  Success
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get_text_stat (Text_no    text,
	       Text_stat *result);
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extern  Success
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get_text_stat_old (Text_no    text,
		   Text_stat *result);
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extern  Success
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mark_as_read (Conf_no		    conference,
	      int		    no_of_texts,
	      const Local_text_no * text_arr  );
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extern  Success
mark_as_unread(Conf_no         conference,
	       Local_text_no   lno);


extern  Success
set_read_ranges(Conf_no conference,
		const struct read_range_list *read_ranges);

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/* Returns 0 on error */
extern  Text_no
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create_text (const String     message,
	     Misc_info_list * misc,
	     Aux_item_list  * aux);
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extern Text_no
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create_text_old (const String     message,
		 Misc_info_list	* misc	    );
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/* Returns 0 on error.  */
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extern  Text_no
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create_anonymous_text (const String      message,
		       Misc_info_list  * misc,
		       Aux_item_list    *aux);
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extern  Text_no
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create_anonymous_text_old (const String      message,
			   Misc_info_list  * misc);
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extern Success
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delete_text( Text_no text_no);
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extern Success
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modify_text_info(Text_no        text,
		 Number_list   *items_to_delete, 
		 Aux_item_list *aux);
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extern  Success
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add_recipient (Text_no	      text_no,
	       Conf_no	      conf_no,
	       enum info_type type);
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extern  Success
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sub_recipient (Text_no	  text_no,
	       Conf_no	  conf_no);
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extern  Success
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add_comment (Text_no	  comment,
	     Text_no 	  comment_to);
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/*
 *  Make the text COMMENT to not be a comment to text COMMENT_TO
 */
extern  Success
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sub_comment (Text_no	  comment,
	     Text_no	  comment_to);
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extern Success
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add_footnote (Text_no	footnote,
	      Text_no 	footnote_to);
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extern Success
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sub_footnote (Text_no	footnote,
	      Text_no	parent);
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extern  Success
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get_map (Conf_no	  conf_no,
	 Local_text_no	  first_local_no,
	 unsigned long	  no_of_texts,
	 L2g_iterator    *result);
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extern Success
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local_to_global (Conf_no       conf_No,
		 Local_text_no first_local_no,
		 unsigned long no_of_texts,
		 Text_mapping *result);
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/*
 *  Ask what the server thinks the time is. This
 *  might differ if on two different machines.
 */
extern  Success
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get_time (time_t *t);
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/*
 *  Gets the last text before a given time.
 */
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extern  Success
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get_last_text (struct tm *clk, Text_no *result);
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/*
 * Return next/previous existing text-no.
 */

extern  Success
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find_next_text_no (Text_no start, Text_no *result);
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extern  Success
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find_previous_text_no (Text_no start, Text_no *result);
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/*
 * Who is logged on now?
 */
extern  Success
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who_is_on_old (Who_info_list_old	* result);
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extern  Success
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who_is_on (Who_info_list	* result);
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extern  Success
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who_is_on_ident (Who_info_ident_list *result);
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extern  Success
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who_is_on_dynamic (int want_visible,
		   int want_invisible,
		   long active_last,
		   Dynamic_session_info_list *result);
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/*
 *  Return various information about the server
 */
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extern  Success
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get_info_old (Info *result);
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extern  Success
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get_info (Info *result);
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extern  Success
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get_version_info (Version_info *result);
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/*
 * Privileged calls.
 */

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extern Success
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set_info(Info *info);
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extern Success
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modify_system_info(Number_list      *items_to_delete,
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		   Aux_item_list    *items_to_add);
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extern Success
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set_motd_of_lyskom (Text_no motd);
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/*
 * Set ena_level. 0 means don't use any privileges.
 */
extern Success
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enable (unsigned char ena_level);
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/*
 * Make LysKOM sync its files.
 */
extern Success
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sync_kom (void);
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/*
 * Close LysKOM.
 */
extern Success
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shutdown_kom (int exit_val);
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/*
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 * Send a message to all clients. This is obsoleted by send_message(),
 * but will remain for compatibility reasons.
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 */
extern Success
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broadcast (const String message);
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/*
 * Send a message to a person, or all persons. If recipient == 0 all
 * connections will receive the message.
 */
extern Success
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send_message (Conf_no recipient,
	      const String message);
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/*
 * Selection of asynchronous messages
 */

extern Success
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accept_async(Number_list *accept_list);
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extern Success
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query_async(Number_list *result);
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/*
 * Aux-items
 */

extern Success
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query_predefined_aux_items(Number_list *result);
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#ifdef DEBUG_CALLS
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get_memory_info(Memory_info *result);
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extern Success
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set_marks(Text_no text_no, unsigned long no_of_marks);
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extern Success
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backdate_text(Text_no text_no,
	      unsigned long seconds);
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extern Success
start_garb(void);

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#endif
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#endif	/*  _SERVICES_H_ALREADY_INCLUDED__  */