67 lines
2.1 KiB
C
67 lines
2.1 KiB
C
/* dfilter.h
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* Definitions for display filters
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*
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* $Id: dfilter.h,v 1.11 1999/10/11 06:39:04 guy Exp $
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*
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* Ethereal - Network traffic analyzer
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* By Gerald Combs <gerald@zing.org>
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* Copyright 1998 Gerald Combs
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*
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*
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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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#ifndef __DFILTER_H__
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#define __DFILTER_H__
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#define DFILTER_CONTAINS_FILTER(x) ((x) != NULL && (x)->dftree)
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/* dfilter_error_msg is NULL if there was no error during dfilter_compile,
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* otherwise it points to a displayable error message. */
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extern gchar *dfilter_error_msg;
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extern gchar dfilter_error_msg_buf[1024];
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typedef struct {
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GNode *dftree;
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/* space for dfilter_nodes */
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GMemChunk *node_memchunk;
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/* list of byte arrays we allocate during parse. We can traverse this list
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* faster than the tree when we go back and free the byte arrays */
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GSList *list_of_byte_arrays;
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} dfilter;
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/* Initialization of the symbol table. Called once during program startup */
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void dfilter_init(void);
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/* Free the memory used by the symbol table. Called at program shutdown */
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void dfilter_cleanup(void);
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/* Allocate and initialize new dfilter struct. Returns pointer to new dfilter */
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dfilter* dfilter_new(void);
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/* Frees all memory used by dfilter, and frees dfilter itself */
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void dfilter_destroy(dfilter *df);
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/* Compile display filter text */
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dfilter* dfilter_compile(gchar* dfilter_text);
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/* Apply compiled dfilter to a proto_tree */
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gboolean dfilter_apply(dfilter *df, proto_tree *ptree, const guint8* pd);
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#endif /* ! __DFILTER_H__ */
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