forked from osmocom/wireshark
e0064797fb
(enum constant names are part of the global name space). (Fixes at least one gcc -Wshadow warning). svn path=/trunk/; revision=31572
208 lines
4.8 KiB
C
208 lines
4.8 KiB
C
/* drange.c
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* Routines for providing general range support to the dfilter library
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*
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* $Id$
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*
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* Copyright (c) 2000 by Ed Warnicke <hagbard@physics.rutgers.edu>
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs
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* Copyright 1999 Gerald Combs
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include "drange.h"
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/* drange_node constructor */
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drange_node*
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drange_node_new(void)
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{
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drange_node* new_range_node;
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new_range_node = g_malloc(sizeof(drange_node));
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new_range_node->start_offset = 0;
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new_range_node->length = 0;
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new_range_node->end_offset = 0;
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new_range_node->ending = DRANGE_NODE_END_T_UNINITIALIZED;
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return new_range_node;
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}
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/* drange_node destructor */
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void
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drange_node_free(drange_node* drnode)
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{
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g_free(drnode);
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}
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/* drange_node accessors */
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gint
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drange_node_get_start_offset(drange_node* drnode)
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{
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g_assert(drnode->ending != DRANGE_NODE_END_T_UNINITIALIZED);
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return drnode->start_offset;
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}
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gint
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drange_node_get_length(drange_node* drnode)
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{
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g_assert(drnode->ending == DRANGE_NODE_END_T_LENGTH);
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return drnode->length;
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}
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gint
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drange_node_get_end_offset(drange_node* drnode)
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{
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g_assert(drnode->ending == DRANGE_NODE_END_T_OFFSET);
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return drnode->end_offset;
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}
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drange_node_end_t
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drange_node_get_ending(drange_node* drnode)
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{
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g_assert(drnode->ending != DRANGE_NODE_END_T_UNINITIALIZED);
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return drnode->ending;
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}
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/* drange_node mutators */
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void
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drange_node_set_start_offset(drange_node* drnode, gint offset)
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{
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drnode->start_offset = offset;
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}
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void
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drange_node_set_length(drange_node* drnode, gint length)
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{
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drnode->length = length;
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drnode->ending = DRANGE_NODE_END_T_LENGTH;
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}
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void
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drange_node_set_end_offset(drange_node* drnode, gint offset)
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{
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drnode->end_offset = offset;
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drnode->ending = DRANGE_NODE_END_T_OFFSET;
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}
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void
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drange_node_set_to_the_end(drange_node* drnode)
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{
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drnode->ending = DRANGE_NODE_END_T_TO_THE_END;
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}
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/* drange constructor */
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drange*
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drange_new(void)
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{
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drange* new_drange;
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new_drange = g_malloc(sizeof(drange));
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new_drange->range_list = NULL;
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new_drange->has_total_length = TRUE;
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new_drange->total_length = 0;
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new_drange->min_start_offset = G_MAXINT;
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new_drange->max_start_offset = G_MININT;
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return new_drange;
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}
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static void
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drange_append_wrapper(gpointer data, gpointer user_data)
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{
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drange_node *drnode = data;
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drange *dr = user_data;
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drange_append_drange_node(dr, drnode);
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}
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drange*
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drange_new_from_list(GSList *list)
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{
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drange *new_drange;
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new_drange = drange_new();
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g_slist_foreach(list, drange_append_wrapper, new_drange);
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return new_drange;
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}
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static void
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drange_node_free_wrapper(gpointer data, gpointer userdata _U_)
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{
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g_free(data);
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}
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/* drange destructor */
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void
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drange_free(drange* dr)
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{
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drange_node_free_list(dr->range_list);
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g_free(dr);
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}
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/* Call drange_node destructor on all list items */
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void
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drange_node_free_list(GSList* list)
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{
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g_slist_foreach(list, drange_node_free_wrapper, NULL);
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}
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/* drange accessors */
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gboolean drange_has_total_length(drange* dr){ return dr->has_total_length; }
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gint drange_get_total_length(drange* dr) { return dr->total_length; }
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gint drange_get_min_start_offset(drange* dr) { return dr->min_start_offset; }
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gint drange_get_max_start_offset(drange* dr) { return dr->max_start_offset; }
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static void
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update_drange_with_node(drange *dr, drange_node *drnode)
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{
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if(drnode->ending == DRANGE_NODE_END_T_TO_THE_END){
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dr->has_total_length = FALSE;
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}
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else if(dr->has_total_length){
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dr->total_length += drnode->length;
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}
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if(drnode->start_offset < dr->min_start_offset){
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dr->min_start_offset = drnode->start_offset;
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}
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if(drnode->start_offset > dr->max_start_offset){
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dr->max_start_offset = drnode->start_offset;
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}
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}
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/* drange mutators */
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void
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drange_prepend_drange_node(drange* dr, drange_node* drnode)
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{
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if(drnode != NULL){
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dr->range_list = g_slist_prepend(dr->range_list,drnode);
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update_drange_with_node(dr, drnode);
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}
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}
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void
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drange_append_drange_node(drange* dr, drange_node* drnode)
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{
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if(drnode != NULL){
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dr->range_list = g_slist_append(dr->range_list,drnode);
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update_drange_with_node(dr, drnode);
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}
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}
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void
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drange_foreach_drange_node(drange* dr, GFunc func, gpointer funcdata)
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{
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g_slist_foreach(dr->range_list,func,funcdata);
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}
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