78 lines
2.1 KiB
C
78 lines
2.1 KiB
C
/*
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* Scyther : An automatic verifier for security protocols.
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* Copyright (C) 2007 Cas Cremers
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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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#ifndef SYMBOLS
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#define SYMBOLS
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#include <stdarg.h>
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//! Size of symbol hashtable.
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/** Optimistically large. Should be a prime, says theory.
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*/
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#define HASHSIZE 997
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enum symboltypes
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{ T_UNDEF = -1, T_PROTOCOL, T_CONST, T_VAR, T_SYSCONST };
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#define EOS 0
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//! Symbol structure
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struct symbol
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{
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//! Type of symbol.
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/**
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*\sa T_UNDEF, T_PROTOCOL, T_CONST, T_VAR, T_SYSCONST
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*/
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int type;
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//! Line number at which it occurred.
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int lineno;
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//! Level of occurrence in role nodes. 0 for as non-key, 1 for key only, 2 for key of key only, etc..
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int keylevel;
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//! Ascii string with name of the symbol.
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const char *text;
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//! Possible next pointer.
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struct symbol *next;
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//! Used for linking all symbol blocks, freed or in use.
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struct symbol *allocnext;
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};
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typedef struct symbol *Symbol; //!< pointer to symbol structure
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void symbolsInit (void);
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void symbolsDone (void);
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Symbol get_symb (void);
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void free_symb (const Symbol s);
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void insert (const Symbol s);
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Symbol lookup (const char *s);
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void symbolPrint (const Symbol s);
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void symbolPrintAll (void);
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Symbol symbolSysConst (const char *str);
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void symbol_fix_keylevels (void);
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Symbol symbolNextFree (Symbol prefixsymbol);
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void eprintf (char *fmt, ...);
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void veprintf (const char *fmt, va_list args);
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extern int globalError;
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extern char *globalStream;
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#endif
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