construct/authd/dns.h

/* authd/dns.h - header for authd DNS functions
 * Copyright (c) 2016 William Pitcock <nenolod@dereferenced.org>
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice is present in all copies.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef _AUTHD_DNS_H
#define _AUTHD_DNS_H

#define DNS_REQ_IDLEN 10

#include "stdinc.h"
#include "res.h"
#include "reslib.h"

struct dns_request
{
	struct DNSQuery query;
	char reqid[DNS_REQ_IDLEN];
	struct rb_sockaddr_storage addr;
	char type;
};

extern void format_address(struct rb_sockaddr_storage *addr, char *buffer, size_t length);
extern bool sockcmp(struct rb_sockaddr_storage *addr, struct rb_sockaddr_storage *addr2, int family);
extern void resolve_dns(int parc, char *parv[]);
extern void enumerate_nameservers(const char *rid, const char letter);
extern void reload_nameservers(const char letter);

#endif