#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 Red Hat, Inc.// Copyright (C) 2003 Andrew Lunn//// 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.,// 59 Temple Place, Suite 330, Boston, MA 02111-1307 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.//// This exception does not invalidate any other reasons why a work based on// this file might be covered by the GNU General Public License.//// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.// at http://sources.redhat.com/ecos/ecos-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 mappingstruct 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 intcyg_dns_getnameinfo(const struct sockaddr * sa, char * host, size_t hostlen);//-----------------------------------------------------------------------------#endif // CYGONCE_NS_DNS_DNS_H// End of dns.h