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// -*-c++-*-
/* $Id: dns.h,v 1.10 1999/10/23 14:18:23 dm Exp $ */
/*
*
* Copyright (C) 1998 David Mazieres (dm@uun.org)
*
* This program 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, or (at
* your option) any later version.
*
* This program 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 _DNS_H_
#define _DNS_H_ 1
#include "async.h"
extern "C" {
#define class rr_class
#include <arpa/nameser.h>
#undef class
#include <resolv.h>
/* Declarations missing on some OS's */
#ifdef NEED_RES_INIT_DECL
void res_init ();
#endif /* NEED_RES_INIT_DECL */
#ifdef NEED_RES_MKQUERY_DECL
int res_mkquery (int, const char *, int, int,
const u_char *, int, const u_char *,
u_char *, int);
#endif /* NEED_RES_MKQUERY_DECL */
}
struct hostent;
struct mxrec {
u_short pref;
char *name;
};
struct mxlist {
char *m_name; /* Name of host for which MX list taken */
u_short m_nmx; /* Number of mx records */
struct mxrec m_mxes[1]; /* MX records */
};
/* Extender error types for ar_errno */
#define ARERR_NXREC 0x101 /* No records of appropriate type */
#define ARERR_TIMEOUT 0x102 /* Query timed out */
#define ARERR_PTRSPOOF 0x103 /* PTR response was a lie! */
#define ARERR_BADRESP 0x104 /* Nameserver replied with malformed packet */
#define ARERR_CANTSEND 0x105 /* Can't send to name server */
#define ARERR_REQINVAL 0x106 /* Request was for malformed domain name */
#define ARERR_CNAMELOOP 0x107 /* CNAME records form loop */
typedef callback<void, ptr<hostent>, int>::ref cbhent;
void dns_hostbyname (str, cbhent,
bool search = false, bool addrok = true);
void dns_hostbyaddr (const in_addr, cbhent);
const char *dns_strerror (int);
int dns_tmperr (int);
void printaddrs (const char *, ptr<hostent>, int = 0);
void printmxlist (const char *, ptr<mxlist>, int = 0);
#endif /* !_DNS_H_ */
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