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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
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