45 lines
1.5 KiB
C
45 lines
1.5 KiB
C
/*
|
|
* Scyther : An automatic verifier for security protocols.
|
|
* Copyright (C) 2007-2013 Cas Cremers
|
|
*
|
|
* This program 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 2
|
|
* of the License, or (at your option) any later version.
|
|
*
|
|
* This program 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 this program; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
*/
|
|
|
|
#ifndef MGU
|
|
#define MGU
|
|
|
|
#include "term.h"
|
|
#include "termlist.h"
|
|
|
|
//! A special constant do denote failure.
|
|
/**
|
|
* \c NULL already denotes equality, so an extra signal is needed to
|
|
* denote that a unification fails.
|
|
* \todo Find a portable solution for this \c MGUFAIL constant:
|
|
* maybe a pointer to some special constant.
|
|
*/
|
|
#define MGUFAIL (Termlist) -1
|
|
|
|
void termlistSubstReset (Termlist tl);
|
|
int checkRoletermMatch (const Term t1, const Term t2, const Termlist tl);
|
|
|
|
// The new iteration methods
|
|
int unify (Term t1, Term t2, Termlist tl, int (*callback) (), void *state);
|
|
int
|
|
subtermUnify (Term tbig, Term tsmall, Termlist tl, Termlist keylist,
|
|
int (*callback) (), void *state);
|
|
|
|
#endif
|