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/*
* $Id: rule.h,v 1.1.1.1 2005/06/13 16:47:43 bogdan_iancu Exp $
*
* PERMISSIONS module
*
* Copyright (C) 2003 Mikls Tirpk (mtirpak@sztaki.hu)
*
* This file is part of openser, a free SIP server.
*
* openser 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
*
* openser 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#ifndef RULE_H
#define RULE_H 1
#include <regex.h>
#define EXPRESSION_LENGTH 100 /* maximum length of an expression */
#define LINE_LENGTH 500 /* maximum length of lines in the config file */
struct rule_struct;
typedef struct rule_struct rule;
struct expression_struct;
typedef struct expression_struct expression;
rule *new_rule(void);
void free_rule(rule *r);
void print_rule(rule *r);
int search_rule(rule *r, char *left, char *right);
expression *new_expression(char *str);
void free_expression(expression *e);
void print_expression(expression *e);
int search_expression(expression *e, char *value);
/*
* stores an expression
* value represents the string, and reg_value is the compiled string to POSIX regular expression
*/
struct expression_struct {
char value[EXPRESSION_LENGTH+1];
regex_t *reg_value;
struct expression_struct *next;
};
/*
* stores 4 lists of expressions in the following way:
*
* a, b, c EXCEPT d, e : f, g EXCEPT h
* left = a, b, c
* left_exceptions = d, e
* right = f, g
* right_exceptions = h
*/
struct rule_struct {
expression *left, *left_exceptions, *right, *right_exceptions;
struct rule_struct *next;
};
#endif /* RULE_H */
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