filters.h

   1 /* filters.h
   2  * Declarations of routines for reading and writing the filters file.
   3  *
   4  * $Id$
   5  *
   6  * Wireshark - Network traffic analyzer
   7  * By Gerald Combs <gerald@wireshark.org>
   8  * Copyright 1998 Gerald Combs
   9  *
  10  *
  11  * This program is free software; you can redistribute it and/or
  12  * modify it under the terms of the GNU General Public License
  13  * as published by the Free Software Foundation; either version 2
  14  * of the License, or (at your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program; if not, write to the Free Software
  23  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  24  */
  25
  26 #ifndef FILTERS_H
  27 #define FILTERS_H
  28
  29 #ifdef __cplusplus
  30 extern "C" {
  31 #endif /* __cplusplus */
  32
  33 /*
  34  * Filter lists.
  35  */
  36 typedef enum {
  37         CFILTER_LIST,           /* capture filter list - saved */
  38         DFILTER_LIST,           /* display filter list - saved */
  39         CFILTER_EDITED_LIST,    /* capture filter list - currently edited */
  40         DFILTER_EDITED_LIST     /* display filter list - currently edited */
  41 } filter_list_type_t;
  42
  43 /*
  44  * Item in a list of filters.
  45  */
  46 typedef struct {
  47   char *name;           /* filter name */
  48   char *strval;         /* filter expression */
  49 } filter_def;
  50
  51 /*
  52  * Read in a list of filters.
  53  *
  54  * On success, "*pref_path_return" is set to NULL.
  55  * On error, "*pref_path_return" is set to point to the pathname of
  56  * the file we tried to read - it should be freed by our caller -
  57  * and "*errno_return" is set to the error.
  58  */
  59 void read_filter_list(filter_list_type_t list_type, char **pref_path_return,
  60     int *errno_return);
  61
  62 /*
  63  * Get a pointer to the first entry in a filter list.
  64  */
  65 GList *get_filter_list_first(filter_list_type_t list);
  66
  67 /*
  68  * Add a new filter to the end of a list.
  69  * Returns a pointer to the newly-added entry.
  70  */
  71 GList *add_to_filter_list(filter_list_type_t list, const char *name,
  72     const char *expression);
  73
  74 /*
  75  * Remove a filter from a list.
  76  */
  77 void remove_from_filter_list(filter_list_type_t list, GList *fl_entry);
  78
  79 /*
  80  * Write out a list of filters.
  81  *
  82  * On success, "*pref_path_return" is set to NULL.
  83  * On error, "*pref_path_return" is set to point to the pathname of
  84  * the file we tried to read - it should be freed by our caller -
  85  * and "*errno_return" is set to the error.
  86  */
  87 void save_filter_list(filter_list_type_t list_type, char **pref_path_return,
  88     int *errno_return);
  89
  90 /*
  91  * Clone the filter list so it can be edited.
  92  */
  93 void copy_filter_list(filter_list_type_t dest_type, filter_list_type_t src_type);
  94
  95 #ifdef __cplusplus
  96 }
  97 #endif /* __cplusplus */
  98
  99 #endif /* FILTERS_H */