/*- * Copyright (c) 1980, 1983, 1988 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. * * @(#)netdb.h 5.15 (Berkeley) 4/3/91 */ #ifndef _NETDB_H_ #define _NETDB_H_ #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" #define _PATH_SERVACCES "/etc/serv.access" /* * 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 32 bits -- 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 # */ }; /* * Error return codes from gethostbyname() and gethostbyaddr() * (left in extern int h_errno). */ extern int h_errno; #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 */ #ifndef _MINIX_ANSI_H #include #endif void endhostent _ARGS((void)); void endnetent _ARGS((void)); void endprotoent _ARGS((void)); void endservent _ARGS((void)); struct hostent *gethostbyaddr _ARGS((const char *, int, int)); struct hostent *gethostbyname _ARGS((const char *)); struct hostent *gethostent _ARGS((void)); struct netent *getnetbyaddr _ARGS((long, int)); /* u_long? */ struct netent *getnetbyname _ARGS((const char *)); struct netent *getnetent _ARGS((void)); struct protoent *getprotobyname _ARGS((const char *)); struct protoent *getprotobynumber _ARGS((int)); struct protoent *getprotoent _ARGS((void)); struct servent *getservbyname _ARGS((const char *, const char *)); struct servent *getservbyport _ARGS((int, const char *)); struct servent *getservent _ARGS((void)); void herror _ARGS((const char *)); void sethostent _ARGS((int)); /* void sethostfile _ARGS((const char *)); */ void setnetent _ARGS((int)); void setprotoent _ARGS((int)); void setservent _ARGS((int)); #ifdef _MINIX int servxcheck _ARGS((unsigned long _peer, const char *_service, void (*_logf) _ARGS((int _pass, const char *_name)))); char *servxfile _ARGS((const char *_file)); #endif /* * The definitions below are based on * http://www.opengroup.org/onlinepubs/009695399/basedefs/netdb.h.html */ #ifdef _POSIX_SOURCE /* headers exposed by netdb.h */ #include #include #include /* struct for use with getaddrinfo() */ struct addrinfo { int ai_flags; /* Input flags */ int ai_family; /* Address family of socket */ int ai_socktype; /* Socket type */ int ai_protocol; /* Protocol of socket */ socklen_t ai_addrlen; /* Length of socket address */ struct sockaddr *ai_addr; /* Socket address of socket */ char *ai_canonname; /* Canonical name of service location */ struct addrinfo *ai_next; /* Pointer to next in list */ }; /* values for struct addrinfo.ai_flags */ #define AI_PASSIVE 0x00000001 #define AI_CANONNAME 0x00000002 #define AI_NUMERICHOST 0x00000004 #define AI_NUMERICSERV 0x00000008 /* #define AI_V4MAPPED 0x00000010 #define AI_ALL 0x00000020 #define AI_ADDRCONFIG 0x00000040 */ /* flags for getnameinfo() */ /* #define NI_NOFQDN 0x00000001 */ #define NI_NUMERICHOST 0x00000002 #define NI_NAMEREQD 0x00000004 #define NI_NUMERICSERV 0x00000008 /* #define NI_NUMERICSCOPE 0x00000010 */ #define NI_DGRAM 0x00000020 /* error values for getaddrinfo() and getnameinfo() */ #define EAI_AGAIN 1 #define EAI_BADFLAGS 2 #define EAI_FAIL 3 #define EAI_FAMILY 4 #define EAI_MEMORY 5 #define EAI_NONAME 6 #define EAI_SERVICE 7 #define EAI_SOCKTYPE 8 #define EAI_SYSTEM 9 #define EAI_OVERFLOW 10 /* getaddrinfo() and friends */ void freeaddrinfo(struct addrinfo *ai); int getaddrinfo(const char *nodename, const char *servname, const struct addrinfo *hints, struct addrinfo **res); int getnameinfo(const struct sockaddr *sa, socklen_t salen, char *node, socklen_t nodelen, char *service, socklen_t servicelen, int flags); const char *gai_strerror(int ecode); #endif #endif /* !_NETDB_H_ */