/*- * 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-- */ /* * From: Id: netdb.h,v 8.9 1996/11/19 08:39:29 vixie Exp $ */ #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 __BSD_VISIBLE /* not in POSIX */ /* EAI_ADDRFAMILY was obsoleted by RFC 3493, used as extension */ #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 __BSD_VISIBLE /* not in POSIX */ /* EAI_NODATA was obsoleted by RFC 3493, retained here as extension */ #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 */ #if __BSD_VISIBLE /* not in POSIX */ /* The following 3 are not in RFC 3493 or POSIX, retained for compatibility */ #define EAI_BADHINTS 12 /* invalid value for hints */ #define EAI_PROTOCOL 13 /* resolved protocol is unknown */ #define EAI_OVERFLOW 14 /* argument buffer overflow */ #endif #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_ */
