forked from osmocom/wireshark
45 lines
1.3 KiB
C
45 lines
1.3 KiB
C
/** @file
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*
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* Wireshark - Network traffic analyzer
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*
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* Copyright 2006 Gilbert Ramirez <gram@alumni.rice.edu>
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#ifndef DFUNCTIONS_H
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#define DFUNCTIONS_H
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#include <glib.h>
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#include <ftypes/ftypes.h>
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#include "syntax-tree.h"
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/* The run-time logic of the dfilter function */
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typedef gboolean (*DFFuncType)(GList *arg1list, GList *arg2list, GList **retval);
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/* The semantic check for the dfilter function */
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typedef void (*DFSemCheckType)(dfwork_t *dfw, const char *func_name,
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int param_num, stnode_t *st_node);
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/* If a function needs more args than this, increase
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* this macro and add more arg members to the dfvm_insn_t
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* struct in dfvm.h, and add some logic to dfw_append_function()
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* and dfvm_apply() */
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#define DFUNCTION_MAX_NARGS 2
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/* This is a "function definition" record, holding everything
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* we need to know about a function */
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typedef struct {
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const char *name;
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DFFuncType function;
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ftenum_t retval_ftype;
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guint min_nargs;
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guint max_nargs;
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DFSemCheckType semcheck_param_function;
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} df_func_def_t;
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/* Return the function definition record for a function of named "name" */
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df_func_def_t* df_func_lookup(const char *name);
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#endif
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