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78 lines
2.0 KiB
78 lines
2.0 KiB
/*
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* $Id$
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*
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* PERMISSIONS module
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*
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* Copyright (C) 2003 Miklós Tirpák (mtirpak@sztaki.hu)
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*
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* This file is part of Kamailio, a free SIP server.
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*
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* Kamailio is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version
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*
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* Kamailio 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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*/
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#ifndef RULE_H
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#define RULE_H 1
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#include <regex.h>
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#define EXPRESSION_LENGTH 256 /* maximum length of an expression */
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#define LINE_LENGTH 500 /* maximum length of lines in the config file */
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struct rule_struct;
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typedef struct rule_struct rule;
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struct expression_struct;
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typedef struct expression_struct expression;
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rule *new_rule(void);
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void free_rule(rule *r);
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void print_rule(rule *r);
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int search_rule(rule *r, char *left, char *right);
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expression *new_expression(char *str);
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void free_expression(expression *e);
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void print_expression(expression *e);
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int search_expression(expression *e, char *value);
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/*
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* stores an expression
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* value represents the string, and reg_value is the compiled string to POSIX regular expression
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*/
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struct expression_struct {
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char value[EXPRESSION_LENGTH+1];
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regex_t *reg_value;
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struct expression_struct *next;
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};
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/*
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* stores 4 lists of expressions in the following way:
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*
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* a, b, c EXCEPT d, e : f, g EXCEPT h
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* left = a, b, c
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* left_exceptions = d, e
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* right = f, g
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* right_exceptions = h
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*/
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struct rule_struct {
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expression *left, *left_exceptions, *right, *right_exceptions;
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struct rule_struct *next;
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};
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#endif /* RULE_H */
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