/*-
* SPDX-License-Identifier: (BSD-3-Clause AND ISC)
*
* Copyright (c) 1980, 1983, 1988, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
*
* -
* Portions Copyright (c) 1993 by Digital Equipment Corporation.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies, and that
* the name of Digital Equipment Corporation not be used in advertising or
* publicity pertaining to distribution of the document or software without
* specific, written prior permission.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL
* WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DIGITAL EQUIPMENT
* CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
* ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
* SOFTWARE.
* -
* --Copyright--
*/
/*
* @(#)netdb.h 8.1 (Berkeley) 6/2/93
* From: Id: netdb.h,v 8.9 1996/11/19 08:39:29 vixie Exp $
* $FreeBSD$
*/
#ifndef _NETDB_H_
#define _NETDB_H_
#include <sys/cdefs.h>
#include <sys/_types.h>
#ifndef _IN_ADDR_T_DECLARED
typedef __uint32_t in_addr_t;
#define _IN_ADDR_T_DECLARED
#endif
#ifndef _IN_PORT_T_DECLARED
typedef __uint16_t in_port_t;
#define _IN_PORT_T_DECLARED
#endif
#ifndef _SIZE_T_DECLARED
typedef __size_t size_t;
#define _SIZE_T_DECLARED
#endif
#ifndef _SOCKLEN_T_DECLARED
typedef __socklen_t socklen_t;
#define _SOCKLEN_T_DECLARED
#endif
#ifndef _UINT32_T_DECLARED
typedef __uint32_t uint32_t;
#define _UINT32_T_DECLARED
#endif
#ifndef _PATH_HEQUIV
# define _PATH_HEQUIV "/etc/hosts.equiv"
#endif
#define _PATH_HOSTS "/etc/hosts"
#define _PATH_NETWORKS "/etc/networks"
#define _PATH_PROTOCOLS "/etc/protocols"
#define _PATH_SERVICES "/etc/services"
#define _PATH_SERVICES_DB "/var/db/services.db"
#define h_errno (*__h_errno())
/*
* Structures returned by network data base library. All addresses are
* supplied in host order, and returned in network order (suitable for
* use in system calls).
*/
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 from name server */
#define h_addr h_addr_list[0] /* address, for backward compatibility */
};
struct netent {
char *n_name; /* official name of net */
char **n_aliases; /* alias list */
int n_addrtype; /* net address type */
uint32_t n_net; /* network # */
};
struct servent {
char *s_name; /* official service name */
char **s_aliases; /* alias list */
int s_port; /* port # */
char *s_proto; /* protocol to use */
};
struct protoent {
char *p_name; /* official protocol name */
char **p_aliases; /* alias list */
int p_proto; /* protocol # */
};
struct addrinfo {
int ai_flags; /* AI_PASSIVE, AI_CANONNAME, AI_NUMERICHOST */
int ai_family; /* AF_xxx */
int ai_socktype; /* SOCK_xxx */
int ai_protocol; /* 0 or IPPROTO_xxx for IPv4 and IPv6 */
socklen_t ai_addrlen; /* length of ai_addr */
char *ai_canonname; /* canonical name for hostname */
struct sockaddr *ai_addr; /* binary address */
struct addrinfo *ai_next; /* next structure in linked list */
};
#define IPPORT_RESERVED 1024
/*
* Error return codes from gethostbyname() and gethostbyaddr()
* (left in h_errno).
*/
#define NETDB_INTERNAL -1 /* see errno */
#define NETDB_SUCCESS 0 /* no problem */
#define HOST_NOT_FOUND 1 /* Authoritative Answer Host not found */
#define TRY_AGAIN 2 /* Non-Authoritative Host not found, or SERVERFAIL */
#define NO_RECOVERY 3 /* Non recoverable errors, FORMERR, REFUSED, NOTIMP */
#define NO_DATA 4 /* Valid name, no data record of requested type */
#define NO_ADDRESS NO_DATA /* no address, look for MX record */
/*
* Error return codes from gai_strerror(3), see RFC 3493.
*/
#if 0
/* Obsoleted on RFC 2553bis-02 */
#define EAI_ADDRFAMILY 1 /* address family for hostname not supported */
#endif
#define EAI_AGAIN 2 /* name could not be resolved at this time */
#define EAI_BADFLAGS 3 /* flags parameter had an invalid value */
#define EAI_FAIL 4 /* non-recoverable failure in name resolution */
#define EAI_FAMILY 5 /* address family not recognized */
#define EAI_MEMORY 6 /* memory allocation failure */
#if 0
/* Obsoleted on RFC 2553bis-02 */
#define EAI_NODATA 7 /* no address associated with hostname */
#endif
#define EAI_NONAME 8 /* name does not resolve */
#define EAI_SERVICE 9 /* service not recognized for socket type */
#define EAI_SOCKTYPE 10 /* intended socket type was not recognized */
#define EAI_SYSTEM 11 /* system error returned in errno */
#define EAI_BADHINTS 12 /* invalid value for hints */
#define EAI_PROTOCOL 13 /* resolved protocol is unknown */
#define EAI_OVERFLOW 14 /* argument buffer overflow */
#define EAI_MAX 15
/*
* Flag values for getaddrinfo()
*/
#define AI_PASSIVE 0x00000001 /* get address to use bind() */
#define AI_CANONNAME 0x00000002 /* fill ai_canonname */
#define AI_NUMERICHOST 0x00000004 /* prevent host name resolution */
#define AI_NUMERICSERV 0x00000008 /* prevent service name resolution */
/* valid flags for addrinfo (not a standard def, apps should not use it) */
#define AI_MASK \
(AI_PASSIVE | AI_CANONNAME | AI_NUMERICHOST | AI_NUMERICSERV | \
AI_ADDRCONFIG | AI_ALL | AI_V4MAPPED)
#define AI_ALL 0x00000100 /* IPv6 and IPv4-mapped (with AI_V4MAPPED) */
#define AI_V4MAPPED_CFG 0x00000200 /* accept IPv4-mapped if kernel supports */
#define AI_ADDRCONFIG 0x00000400 /* only if any address is assigned */
#define AI_V4MAPPED 0x00000800 /* accept IPv4-mapped IPv6 address */
/* special recommended flags for getipnodebyname */
#define AI_DEFAULT (AI_V4MAPPED_CFG | AI_ADDRCONFIG)
/*
* Constants for getnameinfo()
*/
#define NI_MAXHOST 1025
#define NI_MAXSERV 32
/*
* Flag values for getnameinfo()
*/
#define NI_NOFQDN 0x00000001
#define NI_NUMERICHOST 0x00000002
#define NI_NAMEREQD 0x00000004
#define NI_NUMERICSERV 0x00000008
#define NI_DGRAM 0x00000010
#define NI_NUMERICSCOPE 0x00000020
/*
* Scope delimit character
*/
#define SCOPE_DELIMITER '%'
__BEGIN_DECLS
void endhostent(void);
void endnetent(void);
void endprotoent(void);
void endservent(void);
#if __BSD_VISIBLE || (__POSIX_VISIBLE && __POSIX_VISIBLE <= 200112)
struct hostent *gethostbyaddr(const void *, socklen_t, int);
struct hostent *gethostbyname(const char *);
#endif
struct hostent *gethostent(void);
struct netent *getnetbyaddr(uint32_t, int);
struct netent *getnetbyname(const char *);
struct netent *getnetent(void);
struct protoent *getprotobyname(const char *);
struct protoent *getprotobynumber(int);
struct protoent *getprotoent(void);
struct servent *getservbyname(const char *, const char *);
struct servent *getservbyport(int, const char *);
struct servent *getservent(void);
void sethostent(int);
/* void sethostfile(const char *); */
void setnetent(int);
void setprotoent(int);
int getaddrinfo(const char *, const char *,
const struct addrinfo *, struct addrinfo **);
int getnameinfo(const struct sockaddr *, socklen_t, char *,
size_t, char *, size_t, int);
void freeaddrinfo(struct addrinfo *);
const char *gai_strerror(int);
void setservent(int);
#if __BSD_VISIBLE
void endnetgrent(void);
void freehostent(struct hostent *);
int gethostbyaddr_r(const void *, socklen_t, int, struct hostent *,
char *, size_t, struct hostent **, int *);
int gethostbyname_r(const char *, struct hostent *, char *, size_t,
struct hostent **, int *);
struct hostent *gethostbyname2(const char *, int);
int gethostbyname2_r(const char *, int, struct hostent *, char *,
size_t, struct hostent **, int *);
int gethostent_r(struct hostent *, char *, size_t,
struct hostent **, int *);
struct hostent *getipnodebyaddr(const void *, size_t, int, int *);
struct hostent *getipnodebyname(const char *, int, int, int *);
int getnetbyaddr_r(uint32_t, int, struct netent *, char *, size_t,
struct netent**, int *);
int getnetbyname_r(const char *, struct netent *, char *, size_t,
struct netent **, int *);
int getnetent_r(struct netent *, char *, size_t, struct netent **,
int *);
int getnetgrent(char **, char **, char **);
int getnetgrent_r(char **, char **, char **, char *, size_t);
int getprotobyname_r(const char *, struct protoent *, char *,
size_t, struct protoent **);
int getprotobynumber_r(int, struct protoent *, char *, size_t,
struct protoent **);
int getprotoent_r(struct protoent *, char *, size_t,
struct protoent **);
int getservbyname_r(const char *, const char *, struct servent *,
char *, size_t, struct servent **);
int getservbyport_r(int, const char *, struct servent *, char *,
size_t, struct servent **);
int getservent_r(struct servent *, char *, size_t,
struct servent **);
void herror(const char *);
const char *hstrerror(int);
int innetgr(const char *, const char *, const char *, const char *);
void setnetgrent(const char *);
#endif
/*
* PRIVATE functions specific to the FreeBSD implementation
*/
/* DO NOT USE THESE, THEY ARE SUBJECT TO CHANGE AND ARE NOT PORTABLE!!! */
int * __h_errno(void);
__END_DECLS
#endif /* !_NETDB_H_ */
