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/* ip port range, for libreswan
*
* Copyright (C) 2020 Andrew Cagney
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the GNU Library General Public License as published by
* the Free Software Foundation; either version 2 of the License, or (at your
* option) any later version. See <https://www.gnu.org/licenses/lgpl-2.1.txt>.
*
* This library 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 Library General Public
* License for more details.
*/
#ifndef IP_PORT_RANGE_H
#define IP_PORT_RANGE_H
#include <stdint.h>
#include <stdbool.h>
#include "ip_port.h"
/*
* XXX: open question: all ports should be represented as 0..65535,
* but how to represent no ports (magic 0 0?).
*
* This feeds into the selector code.
*/
typedef struct {
bool is_set;
unsigned lo;
unsigned hi;
} ip_port_range;
ip_port_range port_range_from_ports(ip_port lo, ip_port hi);
extern const ip_port_range unset_port_range;
typedef struct {
char buf[sizeof("65535-65535") + 1/*canary*/];
} port_range_buf;
size_t jam_port_range(struct jambuf *buf, ip_port_range port_range);
const char *str_port_range(ip_port_range port_range, port_range_buf *buf);
#endif
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