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#ifndef CYGONCE_NS_DNS_DNS_H

#define CYGONCE_NS_DNS_DNS_H

//=============================================================================

//

//      dns.h

//

//      DNS client code.

//

//=============================================================================

// ####ECOSGPLCOPYRIGHTBEGIN####                                            

// -------------------------------------------                              

// This file is part of eCos, the Embedded Configurable Operating System.   

// Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.

//

// eCos 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.                                                                 

//

// eCos 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 eCos; if not, write to the Free Software Foundation, Inc.,    

// 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.            

//

// As a special exception, if other files instantiate templates or use      

// macros or inline functions from this file, or you compile this file      

// and link it with other works to produce a work based on this file,       

// this file does not by itself cause the resulting work to be covered by   

// the GNU General Public License. However the source code for this file    

// must still be made available in accordance with section (3) of the GNU   

// General Public License v2.                                               

//

// This exception does not invalidate any other reasons why a work based    

// on this file might be covered by the GNU General Public License.         

// -------------------------------------------                              

// ####ECOSGPLCOPYRIGHTEND####                                              

//=============================================================================

//#####DESCRIPTIONBEGIN####

//

// Author(s):   andrew.lunn

// Contributors:andrew.lunn, jskov

// Date:        2001-09-18

//

//####DESCRIPTIONEND####

//

//=============================================================================

#include <network.h>

#include <netinet/in.h>

#ifndef _POSIX_SOURCE

/* Initialise the DNS client with the address of the server. The

   address should be a IPv4 or IPv6 numeric address */

__externC int cyg_dns_res_start(char * server);

/* Old interface which  is deprecated */

__externC int cyg_dns_res_init(struct in_addr *dns_server);

/* Functions to manipulate the domainname */

__externC int getdomainname(char *name, size_t len);

__externC int setdomainname(const char *name, size_t len);

#endif

// Host name / IP mapping

struct hostent {

    char    *h_name;        /* official name of host */

    char    **h_aliases;    /* alias list */

    int     h_addrtype;     /* host address type */

    int     h_length;       /* length of address */

    char    **h_addr_list;  /* list of addresses */

};

#define h_addr  h_addr_list[0]  /* for backward compatibility */

__externC struct hostent *gethostbyname(const char *host);

__externC struct hostent *gethostbyaddr(const char *addr, int len, int type);

// Error reporting

__externC int h_errno;

__externC const char* hstrerror(int err);

#define DNS_SUCCESS  0

#define HOST_NOT_FOUND 1

#define TRY_AGAIN      2

#define NO_RECOVERY    3

#define NO_DATA        4

// Interface between the DNS client and getaddrinfo

__externC int

cyg_dns_getaddrinfo(const char * hostname,

                    struct sockaddr addrs[], int num,

                    int family, char **canon);

// Interface between the DNS client and getnameinfo

__externC int

cyg_dns_getnameinfo(const struct sockaddr * sa, char * host, size_t hostlen);

//-----------------------------------------------------------------------------

#endif // CYGONCE_NS_DNS_DNS_H

// End of dns.h