/* * 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. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. 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. * - * Portions Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. * 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. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by WIDE Project and * its contributors. * 4. Neither the name of the project 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 PROJECT 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 PROJECT 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. */ #ifndef _NETDB_H_ #define _NETDB_H_ #include #include #include #include #include #include #ifndef _PATH_HEQUIV #define _PATH_HEQUIV "/etc/hosts.equiv" #endif #ifndef _PATH_HOSTS #define _PATH_HOSTS "/etc/hosts" #endif #ifndef _PATH_NETWORKS #define _PATH_NETWORKS "/etc/networks" #endif #ifndef _PATH_PROTOCOLS #define _PATH_PROTOCOLS "/etc/protocols" #endif #ifndef _PATH_SERVICES #define _PATH_SERVICES "/etc/services" #endif __BEGIN_DECLS extern int * __h_errno __P((void)); __END_DECLS #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 compatiblity */ }; /* * Assumption here is that a network number * fits in an unsigned long -- probably a poor one. */ struct netent { char *n_name; /* official name of net */ char **n_aliases; /* alias list */ int n_addrtype; /* net address type */ unsigned long 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 */ int ai_family; /* PF_xxx */ int ai_socktype; /* SOCK_xxx */ int ai_protocol; /* 0 or IPPROTO_xxx for IPv4 and IPv6 */ size_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 */ }; /* * 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-Authoritive 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 getaddrinfo() */ #define EAI_ADDRFAMILY 1 /* address family for hostname not supported */ #define EAI_AGAIN 2 /* temporary failure in name resolution */ #define EAI_BADFLAGS 3 /* invalid value for ai_flags */ #define EAI_FAIL 4 /* non-recoverable failure in name resolution */ #define EAI_FAMILY 5 /* ai_family not supported */ #define EAI_MEMORY 6 /* memory allocation failure */ #define EAI_NODATA 7 /* no address associated with hostname */ #define EAI_NONAME 8 /* hostname nor servname provided, or not known */ #define EAI_SERVICE 9 /* servname not supported for ai_socktype */ #define EAI_SOCKTYPE 10 /* ai_socktype not supported */ #define EAI_SYSTEM 11 /* system error returned in errno */ #define EAI_BADHINTS 12 #define EAI_PROTOCOL 13 #define EAI_MAX 14 /* * Flag values for getaddrinfo() */ #define AI_PASSIVE 0x00000001 #define AI_CANONNAME 0x00000002 #define AI_NUMERICHOST 0x00000004 #define AI_MASK 0x00000007 /* * Flag values for getipnodebyname() */ #define AI_V4MAPPED 0x00000008 #define AI_ALL 0x00000010 #define AI_ADDRCONFIG 0x00000020 #define AI_DEFAULT (AI_V4MAPPED|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_WITHSCOPEID 0x00000020 #define NI_NUMERICSCOPE 0x00000040 /* * Scope delimit character */ #define SCOPE_DELIMITER '%' __BEGIN_DECLS void endhostent __P((void)); void endnetent __P((void)); void endprotoent __P((void)); void endservent __P((void)); void freehostent __P((struct hostent *)); struct hostent *gethostbyaddr __P((const char *, int, int)); struct hostent *gethostbyname __P((const char *)); struct hostent *gethostbyname2 __P((const char *, int)); struct hostent *gethostent __P((void)); struct hostent *getipnodebyaddr __P((const void *, size_t, int, int *)); struct hostent *getipnodebyname __P((const char *, int, int, int *)); struct netent *getnetbyaddr __P((unsigned long, int)); struct netent *getnetbyname __P((const char *)); struct netent *getnetent __P((void)); struct protoent *getprotobyname __P((const char *)); struct protoent *getprotobynumber __P((int)); struct protoent *getprotoent __P((void)); struct servent *getservbyname __P((const char *, const char *)); struct servent *getservbyport __P((int, const char *)); struct servent *getservent __P((void)); void herror __P((const char *)); const char *hstrerror __P((int)); void sethostent __P((int)); /* void sethostfile __P((const char *)); */ void setnetent __P((int)); void setprotoent __P((int)); void setservent __P((int)); int getaddrinfo __P((const char *, const char *, const struct addrinfo *, struct addrinfo **)); int getnameinfo __P((const struct sockaddr *, socklen_t, char *, socklen_t, char *, socklen_t, int)); void freeaddrinfo __P((struct addrinfo *)); const char *gai_strerror __P((int)); struct hostent *getipnodebyname __P((const char *, int, int, int *)); struct hostent *getipnodebyaddr __P((const void *, size_t, int, int *)); void freehostent __P((struct hostent *)); struct hostent *gethostbyaddr_r __P((const char *, int, int, struct hostent *, char *, int, int *)); struct hostent *gethostbyname_r __P((const char *, struct hostent *, char *, int, int *)); struct hostent *gethostent_r __P((struct hostent *, char *, int, int *)); void sethostent_r __P((int)); void endhostent_r __P((void)); struct netent *getnetbyname_r __P((const char *, struct netent *, char *, int)); struct netent *getnetbyaddr_r __P((long, int, struct netent *, char *, int)); struct netent *getnetent_r __P((struct netent *, char *, int)); void setnetent_r __P((int)); void endnetent_r __P((void)); struct protoent *getprotobyname_r __P((const char *, struct protoent *, char *, int)); struct protoent *getprotobynumber_r __P((int, struct protoent *, char *, int)); struct protoent *getprotoent_r __P((struct protoent *, char *, int)); void setprotoent_r __P((int)); void endprotoent_r __P((void)); struct servent *getservbyname_r __P((const char *name, const char *, struct servent *, char *, int)); struct servent *getservbyport_r __P((int port, const char *, struct servent *, char *, int)); struct servent *getservent_r __P((struct servent *, char *, int)); void setservent_r __P((int)); void endservent_r __P((void)); __END_DECLS #endif /* !_NETDB_H_ */