332 lines
12 KiB
C
332 lines
12 KiB
C
/* Copyright (C) 1996 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it
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and/or modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be
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useful, but WITHOUT ANY WARRANTY; without even the implied warranty
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of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If
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not, write to the Free Software Foundation, Inc., 59 Temple Place -
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Suite 330, Boston, MA 02111-1307, USA. */
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/* All data returned by the network data base library are supplied in
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host order and returned in network order (suitable for use in
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system calls). */
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#ifndef _NETDB_H
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#define _NETDB_H 1
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#include <features.h>
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/* This is necessary to make this include file properly replace the
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Sun version. */
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#include <rpc/netdb.h>
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/* Absolute file name for network data base files. */
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#define _PATH_HEQUIV "/etc/hosts.equiv"
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#define _PATH_HOSTS "/etc/hosts"
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#define _PATH_NETWORKS "/etc/networks"
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#define _PATH_NSSWITCH_CONF "/etc/nsswitch.conf"
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#define _PATH_PROTOCOLS "/etc/protocols"
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#define _PATH_SERVICES "/etc/services"
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__BEGIN_DECLS
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/* Error status for non-reentrant lookup functions. */
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extern int h_errno;
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#if defined __USE_REENTRANT && (!defined _LIBC || defined _LIBC_REENTRANT)
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/* Function to access thread specific `h_errno' variable. */
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extern int *__h_errno_location __P ((void)) __attribute__ ((__const__));
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/* An alias name for above variable. */
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extern int __h_errno;
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/* Use a macro to access always the thread specific `h_errno' variable. */
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#define h_errno (*__h_errno_location ())
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#endif
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/* Possible values left in `h_errno'. */
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#define NETDB_INTERNAL -1 /* See errno. */
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#define NETDB_SUCCESS 0 /* No problem. */
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#define HOST_NOT_FOUND 1 /* Authoritative Answer Host not found. */
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#define TRY_AGAIN 2 /* Non-Authoritive Host not found,
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or SERVERFAIL. */
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#define NO_RECOVERY 3 /* Non recoverable errors, FORMERR, REFUSED,
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NOTIMP. */
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#define NO_DATA 4 /* Valid name, no data record of requested
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type. */
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#define NO_ADDRESS NO_DATA /* No address, look for MX record. */
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/* Print error indicated by `h_errno' variable on standard error. STR
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if non-null is printed before the error string. */
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extern void herror __P ((__const char *__str));
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/* Return string associated with error ERR_NUM. */
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extern __const char *hstrerror __P ((int __err_num));
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/* Description of data base entry for a single host. */
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struct hostent
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{
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char *h_name; /* Official name of host. */
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char **h_aliases; /* Alias list. */
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int h_addrtype; /* Host address type. */
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int h_length; /* Length of address. */
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char **h_addr_list; /* List of addresses from name server. */
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#define h_addr h_addr_list[0] /* Address, for backward compatiblity. */
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};
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/* Open host data base files and mark them as staying open even after
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a later search if STAY_OPEN is non-zero. */
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extern void sethostent __P ((int __stay_open));
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/* Close host data base files and clear `stay open' flag. */
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extern void endhostent __P ((void));
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/* Get next entry from host data base file. Open data base if
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necessary. */
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extern struct hostent *gethostent __P ((void));
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/* Return entry from host data base which address match ADDR with
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length LEN and type TYPE. */
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extern struct hostent *gethostbyaddr __P ((__const char *__addr, int __len,
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int __type));
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/* Return entry from host data base for host with NAME. */
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extern struct hostent *gethostbyname __P ((__const char *__name));
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/* Return entry from host data base for host with NAME. AF must be
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set to the address type which as `AF_INET' for IPv4 or `AF_INET6'
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for IPv6. */
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extern struct hostent *gethostbyname2 __P ((__const char *__name, int __af));
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#ifdef __USE_REENTRANT
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/* Reentrant versions of the functions above. The additional
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arguments specify a buffer of BUFLEN starting at BUF. The last
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argument is a pointer to a variable which gets the value which
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would be stored in the global variable `herrno' by the
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non-reentrant functions. */
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extern struct hostent *__gethostent_r __P ((struct hostent *__result_buf,
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char *__buf, int __buf_len,
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int *__h_errnop));
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extern struct hostent *gethostent_r __P ((struct hostent *__result_buf,
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char *__buf, int __buf_len,
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int *__h_errnop));
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extern struct hostent *__gethostbyaddr_r __P ((__const char *__addr, int __len,
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int __type,
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struct hostent *__result_buf,
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char *__buf, int __buflen,
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int *__h_errnop));
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extern struct hostent *gethostbyaddr_r __P ((__const char *__addr, int __len,
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int __type,
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struct hostent *__result_buf,
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char *__buf, int __buflen,
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int *__h_errnop));
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extern struct hostent *__gethostbyname_r __P ((__const char *__name,
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struct hostent *__result_buf,
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char *__buf, int __buflen,
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int *__h_errnop));
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extern struct hostent *gethostbyname_r __P ((__const char *__name,
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struct hostent *__result_buf,
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char *__buf, int __buflen,
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int *__h_errnop));
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extern struct hostent *__gethostbyname2_r __P ((__const char *__name, int __af,
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struct hostent *__result_buf,
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char *__buf, int __buflen,
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int *__h_errnop));
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extern struct hostent *gethostbyname2_r __P ((__const char *__name, int __af,
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struct hostent *__result_buf,
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char *__buf, int __buflen,
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int *__h_errnop));
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#endif /* reentrant */
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/* Description of data base entry for a single network. NOTE: here a
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poor assumption is made. The network number is expected to fit
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into an unsigned long int variable. */
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struct netent
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{
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char *n_name; /* Official name of network. */
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char **n_aliases; /* Alias list. */
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int n_addrtype; /* Net address type. */
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unsigned long int n_net; /* Network number. */
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};
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/* Open network data base files and mark them as staying open even
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after a later search if STAY_OPEN is non-zero. */
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extern void setnetent __P ((int __stay_open));
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/* Close network data base files and clear `stay open' flag. */
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extern void endnetent __P ((void));
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/* Get next entry from network data base file. Open data base if
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necessary. */
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extern struct netent *getnetent __P ((void));
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/* Return entry from network data base which address match NET and
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type TYPE. */
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extern struct netent *getnetbyaddr __P ((unsigned long int __net,
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int __type));
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/* Return entry from network data base for network with NAME. */
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extern struct netent *getnetbyname __P ((__const char *__name));
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#ifdef __USE_REENTRANT
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/* Reentrant versions of the functions above. The additional
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arguments specify a buffer of BUFLEN starting at BUF. The last
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argument is a pointer to a variable which gets the value which
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would be stored in the global variable `herrno' by the
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non-reentrant functions. */
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extern struct netent *__getnetent_r __P ((struct netent *__result_buf,
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char *__buf, int __buf_len,
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int *__h_errnop));
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extern struct netent *getnetent_r __P ((struct netent *__result_buf,
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char *__buf, int __buf_len,
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int *__h_errnop));
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extern struct netent *__getnetbyaddr_r __P ((unsigned long int __net,
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int __type,
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struct netent *__result_buf,
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char *__buf, int __buflen,
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int *__h_errnop));
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extern struct netent *getnetbyaddr_r __P ((unsigned long int __net,
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int __type,
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struct netent *__result_buf,
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char *__buf, int __buflen,
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int *__h_errnop));
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extern struct netent *__getnetbyname_r __P ((__const char *__name,
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struct netent *__result_buf,
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char *__buf, int __buflen,
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int *__h_errnop));
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extern struct netent *getnetbyname_r __P ((__const char *__name,
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struct netent *__result_buf,
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char *__buf, int __buflen,
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int *__h_errnop));
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#endif /* reentrant */
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/* Description of data base entry for a single service. */
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struct servent
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{
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char *s_name; /* Official service name. */
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char **s_aliases; /* Alias list. */
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int s_port; /* Port number. */
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char *s_proto; /* Protocol to use. */
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};
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/* Open service data base files and mark them as staying open even
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after a later search if STAY_OPEN is non-zero. */
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extern void setservent __P ((int __stay_open));
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/* Close service data base files and clear `stay open' flag. */
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extern void endservent __P ((void));
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/* Get next entry from service data base file. Open data base if
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necessary. */
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extern struct servent *getservent __P ((void));
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/* Return entry from network data base for network with NAME and
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protocol PROTO. */
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extern struct servent *getservbyname __P ((__const char *__name,
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__const char *__proto));
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/* Return entry from service data base which matches port PORT and
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protocol PROTO. */
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extern struct servent *getservbyport __P ((int __port, __const char *__proto));
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#ifdef __USE_REENTRANT
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/* Reentrant versions of the functions above. The additional
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arguments specify a buffer of BUFLEN starting at BUF. */
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extern struct servent *__getservent_r __P ((struct servent *__result_buf,
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char *__buf, int __buf_len));
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extern struct servent *getservent_r __P ((struct servent *__result_buf,
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char *__buf, int __buf_len));
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extern struct servent *__getservbyname_r __P ((__const char *__name,
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__const char *__proto,
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struct servent *__result_buf,
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char *__buf, int __buflen));
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extern struct servent *getservbyname_r __P ((__const char *__name,
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__const char *__proto,
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struct servent *__result_buf,
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char *__buf, int __buflen));
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extern struct servent *__getservbyport_r __P ((int __port,
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__const char *__proto,
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struct servent *__result_buf,
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char *__buf, int __buflen));
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extern struct servent *getservbyport_r __P ((int __port, __const char *__proto,
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struct servent *__result_buf,
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char *__buf, int __buflen));
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#endif /* reentrant */
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/* Description of data base entry for a single service. */
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struct protoent
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{
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char *p_name; /* Official protocol name. */
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char **p_aliases; /* Alias list. */
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int p_proto; /* Protocol number. */
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};
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/* Open protocol data base files and mark them as staying open even
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after a later search if STAY_OPEN is non-zero. */
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extern void setprotoent __P ((int __stay_open));
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/* Close protocol data base files and clear `stay open' flag. */
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extern void endprotoent __P ((void));
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/* Get next entry from protocol data base file. Open data base if
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necessary. */
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extern struct protoent *getprotoent __P ((void));
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/* Return entry from protocol data base for network with NAME. */
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extern struct protoent *getprotobyname __P ((__const char *__name));
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/* Return entry from protocol data base which number is PROTO. */
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extern struct protoent *getprotobynumber __P ((int __proto));
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#ifdef __USE_REENTRANT
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/* Reentrant versions of the functions above. The additional
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arguments specify a buffer of BUFLEN starting at BUF. */
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extern struct protoent *__getprotoent_r __P ((struct protoent *__result_buf,
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char *__buf, int __buf_len));
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extern struct protoent *getprotoent_r __P ((struct protoent *__result_buf,
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char *__buf, int __buf_len));
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extern struct protoent *__getprotobyname_r __P ((__const char *__name,
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struct protoent *__result_buf,
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char *__buf, int __buflen));
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extern struct protoent *getprotobyname_r __P ((__const char *__name,
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struct protoent *__result_buf,
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char *__buf, int __buflen));
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extern struct protoent *__getprotobynumber_r __P ((int __proto,
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struct protoent *__res_buf,
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char *__buf, int __buflen));
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extern struct protoent *getprotobynumber_r __P ((int __proto,
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struct protoent *__result_buf,
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char *__buf, int __buflen));
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#endif /* reentrant */
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__END_DECLS
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#endif /* netdb.h */
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