/* $OpenBSD: netdb.h,v 1.33 2015/01/18 20:29:31 deraadt Exp $ */ /* * ++Copyright++ 1980, 1983, 1988, 1993 * - * 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-- */ /* * Copyright (c) 1995, 1996, 1997, 1998, 1999 Craig Metz. 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 author nor the names of any 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. */ /* * @(#)netdb.h 8.1 (Berkeley) 6/2/93 * $From: netdb.h,v 8.7 1996/05/09 05:59:09 vixie Exp $ */ #ifndef _NETDB_H_ #define _NETDB_H_ #include <netinet/in.h> #ifndef _SOCKLEN_T_DEFINED_ #define _SOCKLEN_T_DEFINED_ typedef __socklen_t socklen_t; /* length type for network syscalls */ #endif #define _PATH_HEQUIV "/etc/hosts.equiv" #define _PATH_HOSTS "/etc/hosts" #define _PATH_NETWORKS "/etc/networks" #define _PATH_PROTOCOLS "/etc/protocols" #define _PATH_SERVICES "/etc/services" /* * 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 */ }; /* * Assumption here is that a network number * fits in an in_addr_t -- probably a poor one. */ struct netent { char *n_name; /* official name of net */ char **n_aliases; /* alias list */ int n_addrtype; /* net address type */ in_addr_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 # */ }; #if __BSD_VISIBLE || __POSIX_VISIBLE < 200809 extern int h_errno; /* * Error return codes from gethostbyname() and gethostbyaddr() * (left in extern int 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 */ #endif /* __BSD_VISIBLE || __POSIX_VISIBLE < 200809 */ /* Values for getaddrinfo() and getnameinfo() */ #define AI_PASSIVE 1 /* socket address is intended for bind() */ #define AI_CANONNAME 2 /* request for canonical name */ #define AI_NUMERICHOST 4 /* don't ever try hostname lookup */ #define AI_EXT 8 /* enable non-portable extensions */ #define AI_NUMERICSERV 16 /* don't ever try servname lookup */ #define AI_FQDN 32 /* return the FQDN that was resolved */ #define AI_ADDRCONFIG 64 /* return configured address families only */ /* valid flags for addrinfo */ #define AI_MASK \ (AI_PASSIVE | AI_CANONNAME | AI_NUMERICHOST | AI_NUMERICSERV | AI_FQDN | \ AI_ADDRCONFIG) #define NI_NUMERICHOST 1 /* return the host address, not the name */ #define NI_NUMERICSERV 2 /* return the service address, not the name */ #define NI_NOFQDN 4 /* return a short name if in the local domain */ #define NI_NAMEREQD 8 /* fail if either host or service name is unknown */ #define NI_DGRAM 16 /* look up datagram service instead of stream */ /* #define NI_NUMERICSCOPE 32 return the scope number, not the name */ #if __BSD_VISIBLE #define NI_MAXHOST 256 /* max host name from getnameinfo (MAXHOSTNAMELEN) */ #define NI_MAXSERV 32 /* max serv. name length returned by getnameinfo */ /* * Scope delimit character (KAME hack) */ #define SCOPE_DELIMITER '%' #endif #define EAI_BADFLAGS -1 /* invalid value for ai_flags */ #define EAI_NONAME -2 /* name or service is not known */ #define EAI_AGAIN -3 /* temporary failure in name resolution */ #define EAI_FAIL -4 /* non-recoverable failure in name resolution */ #define EAI_NODATA -5 /* no address associated with name */ #define EAI_FAMILY -6 /* ai_family not supported */ #define EAI_SOCKTYPE -7 /* ai_socktype not supported */ #define EAI_SERVICE -8 /* service not supported for ai_socktype */ #define EAI_ADDRFAMILY -9 /* address family for name not supported */ #define EAI_MEMORY -10 /* memory allocation failure */ #define EAI_SYSTEM -11 /* system error (code indicated 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 */ struct addrinfo { int ai_flags; /* input flags */ int ai_family; /* protocol family for socket */ int ai_socktype; /* socket type */ int ai_protocol; /* protocol for socket */ socklen_t ai_addrlen; /* length of socket-address */ struct sockaddr *ai_addr; /* socket-address for socket */ char *ai_canonname; /* canonical name for service location (iff req) */ struct addrinfo *ai_next; /* pointer to next in list */ }; #if __BSD_VISIBLE /* * Flags for getrrsetbyname() */ #define RRSET_VALIDATED 1 /* * Return codes for getrrsetbyname() */ #define ERRSET_SUCCESS 0 #define ERRSET_NOMEMORY 1 #define ERRSET_FAIL 2 #define ERRSET_INVAL 3 #define ERRSET_NONAME 4 #define ERRSET_NODATA 5 /* * Structures used by getrrsetbyname() and freerrset() */ struct rdatainfo { unsigned int rdi_length; /* length of data */ unsigned char *rdi_data; /* record data */ }; struct rrsetinfo { unsigned int rri_flags; /* RRSET_VALIDATED ... */ unsigned int rri_rdclass; /* class number */ unsigned int rri_rdtype; /* RR type number */ unsigned int rri_ttl; /* time to live */ unsigned int rri_nrdatas; /* size of rdatas array */ unsigned int rri_nsigs; /* size of sigs array */ char *rri_name; /* canonical name */ struct rdatainfo *rri_rdatas; /* individual records */ struct rdatainfo *rri_sigs; /* individual signatures */ }; struct servent_data { void *fp; char **aliases; int maxaliases; int stayopen; char *line; }; struct protoent_data { void *fp; char **aliases; int maxaliases; int stayopen; char *line; }; #endif __BEGIN_DECLS void endhostent(void); void endnetent(void); void endprotoent(void); void endservent(void); #if __BSD_VISIBLE || __POSIX_VISIBLE < 200809 struct hostent *gethostbyaddr(const void *, socklen_t, int); struct hostent *gethostbyname(const char *); #endif #if __BSD_VISIBLE struct hostent *gethostbyname2(const char *, int); #endif struct hostent *gethostent(void); struct netent *getnetbyaddr(in_addr_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); #if __BSD_VISIBLE void herror(const char *); const char *hstrerror(int); #endif void sethostent(int); /* void sethostfile(const char *); */ void setnetent(int); void setprotoent(int); void setservent(int); #if __BSD_VISIBLE void endprotoent_r(struct protoent_data *); void endservent_r(struct servent_data *); int getprotobyname_r(const char *, struct protoent *, struct protoent_data *); int getprotobynumber_r(int, struct protoent *, struct protoent_data *); int getservbyname_r(const char *, const char *, struct servent *, struct servent_data *); int getservbyport_r(int, const char *, struct servent *, struct servent_data *); int getservent_r(struct servent *, struct servent_data *); int getprotoent_r(struct protoent *, struct protoent_data *); void setprotoent_r(int, struct protoent_data *); void setservent_r(int, struct servent_data *); #endif int getaddrinfo(const char *, const char *, const struct addrinfo *, struct addrinfo **); void freeaddrinfo(struct addrinfo *); int getnameinfo(const struct sockaddr *, socklen_t, char *, size_t, char *, size_t, int); const char *gai_strerror(int); #if __BSD_VISIBLE int getrrsetbyname(const char *, unsigned int, unsigned int, unsigned int, struct rrsetinfo **); void freerrset(struct rrsetinfo *); #endif __END_DECLS #endif /* !_NETDB_H_ */
