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glibc/resolv/netdb.h
Ulrich Drepper a6ff34d7b0 Update. 
1998-12-04  Ulrich Drepper  <drepper@cygnus.com>

	* argp/argp.h: Add __retrict.
	* dirent/dirent.h: Likewise.
	* elf/dlfcn.h: Likewise.
	* grp/grp.h: Likewise.
	* iconv/iconv.h: Likewise.
	* inet/aliases.h: Likewise.
	* libio/libio.h: Likewise.
	* libio/stdio.h: Likewise.
	* locale/locale.h: Likewise.
	* misc/mntent.h: Likewise.
	* posix/wordexp.h: Likewise.
	* pwd/pwd.h: Likewise.
	* resolv/netdb.h: Likewise.
	* rt/aio.h: Likewise.
	* stdio-common/printf.h: Likewise.
	* stdlib/monetary.h: Likewise.
	* stdlib/stdlib.h: Likewise.
	* string/argz.h: Likewise.
	* string/envz.h: Likewise.
	* string/string.h: Likewise.
	* time/time.h: Likewise.

1998-12-04  Zack Weinberg  <zack@rabi.phys.columbia.edu>

	* misc/sys/cdefs.h: Only include features.h if _FEATURES_H isn't
	defined.  gcc's redundant include optimizer isn't clever enough to
	prevent a reinclusion here.
	Define __restrict to the empty string only if not GCC or
	GCC version less than 2.92.

1998-12-03  Andreas Schwab  <schwab@issan.cs.uni-dortmund.de>

	* sysdeps/unix/sysv/linux/configure.in: Fix last change.

1998-12-03  Mark Kettenis  <kettenis@phys.uva.nl>

	* time/strptime.c (strptime_internal): Make use of `%C' format
	specifier if it is seen together with the `%y' specifier.

1998-12-04  Ulrich Drepper  <drepper@cygnus.com>

	* po/sk.po: New file.

1998-12-03  Scott Bambrough  <scottb@corelcomputer.com>

	* sysdeps/arm/dl-machine.h (dl_start_user): Incorrect address
	for _dl_main_searchlist passed to _dl_init_next.

1998-12-02  Andreas Schwab  <schwab@issan.cs.uni-dortmund.de>

	* math/libm-test.c: Expand literal tabs in strings.  Normalize
	whitespace.

1998-12-02  Andreas Schwab  <schwab@issan.cs.uni-dortmund.de>

	* sysdeps/unix/sysv/linux/sys/fsuid.h: Fix spelling.
1998-12-04 20:58:15 +00:00

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/* Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it
and/or modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be
useful, but WITHOUT ANY WARRANTY; without even the implied warranty
of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 59 Temple Place -
Suite 330, Boston, MA 02111-1307, USA. */
/* All data returned by the network data base library are supplied in
host order and returned in network order (suitable for use in
system calls). */
#ifndef _NETDB_H
#define _NETDB_H 1
#include <features.h>
/* This is necessary to make this include file properly replace the
Sun version. */
#include <rpc/netdb.h>
#include <sys/socket.h> /* need socklen_t */
#define __need_size_t
#include <stddef.h>
/* Absolute file name for network data base files. */
#define _PATH_HEQUIV "/etc/hosts.equiv"
#define _PATH_HOSTS "/etc/hosts"
#define _PATH_NETWORKS "/etc/networks"
#define _PATH_NSSWITCH_CONF "/etc/nsswitch.conf"
#define _PATH_PROTOCOLS "/etc/protocols"
#define _PATH_SERVICES "/etc/services"
__BEGIN_DECLS
/* Error status for non-reentrant lookup functions. */
extern int h_errno;
/* Function to get address of global `h_errno' variable. */
extern int *__h_errno_location __P ((void)) __attribute__ ((__const__));
#ifdef _LIBC
# ifdef _LIBC_REENTRANT
static inline int
__set_h_errno (int __err)
{
return *__h_errno_location () = __err;
}
# else
# define __set_h_errno(x) (h_errno = (x))
# endif /* _LIBC_REENTRANT */
#endif /* _LIBC */
#if !defined _LIBC || defined _LIBC_REENTRANT
/* Use a macro to access always the thread specific `h_errno' variable. */
# define h_errno (*__h_errno_location ())
#endif
/* Possible values 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. */
/* Print error indicated by `h_errno' variable on standard error. STR
if non-null is printed before the error string. */
extern void herror __P ((__const char *__str));
/* Return string associated with error ERR_NUM. */
extern __const char *hstrerror __P ((int __err_num));
/* Description of data base entry for a single host. */
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. */
};
/* Open host data base files and mark them as staying open even after
a later search if STAY_OPEN is non-zero. */
extern void sethostent __P ((int __stay_open));
/* Close host data base files and clear `stay open' flag. */
extern void endhostent __P ((void));
/* Get next entry from host data base file. Open data base if
necessary. */
extern struct hostent *gethostent __P ((void));
/* Return entry from host data base which address match ADDR with
length LEN and type TYPE. */
extern struct hostent *gethostbyaddr __P ((__const char *__addr, int __len,
int __type));
/* Return entry from host data base for host with NAME. */
extern struct hostent *gethostbyname __P ((__const char *__name));
/* Return entry from host data base for host with NAME. AF must be
set to the address type which is `AF_INET' for IPv4 or `AF_INET6'
for IPv6. */
extern struct hostent *gethostbyname2 __P ((__const char *__name, int __af));
#ifdef __USE_MISC
/* Reentrant versions of the functions above. The additional
arguments specify a buffer of BUFLEN starting at BUF. The last
argument is a pointer to a variable which gets the value which
would be stored in the global variable `herrno' by the
non-reentrant functions. */
extern int __gethostent_r __P ((struct hostent *__restrict __result_buf,
char *__restrict __buf, size_t __buflen,
struct hostent **__restrict __result,
int *__restrict __h_errnop));
extern int gethostent_r __P ((struct hostent *__restrict __result_buf,
char *__restrict __buf, size_t __buflen,
struct hostent **__restrict __result,
int *__restrict __h_errnop));
extern int __gethostbyaddr_r __P ((__const char *__restrict __addr,
int __len, int __type,
struct hostent *__restrict __result_buf,
char *__restrict __buf, size_t __buflen,
struct hostent **__restrict __result,
int *__restrict __h_errnop));
extern int gethostbyaddr_r __P ((__const char *__restrict __addr, int __len,
int __type,
struct hostent *__restrict __result_buf,
char *__restrict __buf, size_t __buflen,
struct hostent **__restrict __result,
int *__restrict __h_errnop));
extern int __gethostbyname_r __P ((__const char *__restrict __name,
struct hostent *__restrict __result_buf,
char *__restrict __buf, size_t __buflen,
struct hostent **__restrict __result,
int *__restrict __h_errnop));
extern int gethostbyname_r __P ((__const char *__restrict __name,
struct hostent *__restrict __result_buf,
char *__restrict __buf, size_t __buflen,
struct hostent **__restrict __result,
int *__restrict __h_errnop));
extern int __gethostbyname2_r __P ((__const char *__restrict __name, int __af,
struct hostent *__restrict __result_buf,
char *__restrict __buf, size_t __buflen,
struct hostent **__restrict __result,
int *__restrict __h_errnop));
extern int gethostbyname2_r __P ((__const char *__restrict __name, int __af,
struct hostent *__restrict __result_buf,
char *__restrict __buf, size_t __buflen,
struct hostent **__restrict __result,
int *__restrict __h_errnop));
#endif /* misc */
/* Return entry from host data base for host with NAME. AF must be
set to the desired address type (either `AF_INET' or `AF_INET6').
FLAGS is some combination of the following AI_* values. */
extern struct hostent *getnodebyname __P ((__const char *__name, int __af,
int __flags));
#define AI_V4MAPPED 1 /* IPv4-mapped addresses are acceptable. */
#define AI_ALL 2 /* Return both IPv4 and IPv6 addresses. */
#define AI_ADDRCONFIG 4 /* Use configuration of this host to choose
returned address type. */
#define AI_DEFAULT (AI_V4MAPPED | AI_ADDRCONFIG)
/* Description of data base entry for a single network. NOTE: here a
poor assumption is made. The network number is expected to fit
into an unsigned long int variable. */
struct netent
{
char *n_name; /* Official name of network. */
char **n_aliases; /* Alias list. */
int n_addrtype; /* Net address type. */
unsigned long int n_net; /* Network number. */
};
/* Open network data base files and mark them as staying open even
after a later search if STAY_OPEN is non-zero. */
extern void setnetent __P ((int __stay_open));
/* Close network data base files and clear `stay open' flag. */
extern void endnetent __P ((void));
/* Get next entry from network data base file. Open data base if
necessary. */
extern struct netent *getnetent __P ((void));
/* Return entry from network data base which address match NET and
type TYPE. */
extern struct netent *getnetbyaddr __P ((unsigned long int __net,
int __type));
/* Return entry from network data base for network with NAME. */
extern struct netent *getnetbyname __P ((__const char *__name));
#ifdef __USE_MISC
/* Reentrant versions of the functions above. The additional
arguments specify a buffer of BUFLEN starting at BUF. The last
argument is a pointer to a variable which gets the value which
would be stored in the global variable `herrno' by the
non-reentrant functions. */
extern int __getnetent_r __P ((struct netent *__restrict __result_buf,
char *__restrict __buf, size_t __buflen,
struct netent **__restrict __result,
int *__restrict __h_errnop));
extern int getnetent_r __P ((struct netent *__restrict __result_buf,
char *__restrict __buf, size_t __buflen,
struct netent **__restrict __result,
int *__restrict __h_errnop));
extern int __getnetbyaddr_r __P ((unsigned long int __net, int __type,
struct netent *__restrict __result_buf,
char *__restrict __buf, size_t __buflen,
struct netent **__restrict __result,
int *__restrict __h_errnop));
extern int getnetbyaddr_r __P ((unsigned long int __net, int __type,
struct netent *__restrict __result_buf,
char *__restrict __buf, size_t __buflen,
struct netent **__restrict __result,
int *__restrict __h_errnop));
extern int __getnetbyname_r __P ((__const char *__restrict __name,
struct netent *__restrict __result_buf,
char *__restrict __buf, size_t __buflen,
struct netent **__restrict __result,
int *__restrict __h_errnop));
extern int getnetbyname_r __P ((__const char *__restrict __name,
struct netent *__restrict __result_buf,
char *__restrict __buf, size_t __buflen,
struct netent **__restrict __result,
int *__restrict __h_errnop));
#endif /* misc */
/* Description of data base entry for a single service. */
struct servent
{
char *s_name; /* Official service name. */
char **s_aliases; /* Alias list. */
int s_port; /* Port number. */
char *s_proto; /* Protocol to use. */
};
/* Open service data base files and mark them as staying open even
after a later search if STAY_OPEN is non-zero. */
extern void setservent __P ((int __stay_open));
/* Close service data base files and clear `stay open' flag. */
extern void endservent __P ((void));
/* Get next entry from service data base file. Open data base if
necessary. */
extern struct servent *getservent __P ((void));
/* Return entry from network data base for network with NAME and
protocol PROTO. */
extern struct servent *getservbyname __P ((__const char *__name,
__const char *__proto));
/* Return entry from service data base which matches port PORT and
protocol PROTO. */
extern struct servent *getservbyport __P ((int __port, __const char *__proto));
#ifdef __USE_MISC
/* Reentrant versions of the functions above. The additional
arguments specify a buffer of BUFLEN starting at BUF. */
extern int __getservent_r __P ((struct servent *__restrict __result_buf,
char *__restrict __buf, size_t __buflen,
struct servent **__restrict __result));
extern int getservent_r __P ((struct servent *__restrict __result_buf,
char *__restrict __buf, size_t __buflen,
struct servent **__restrict __result));
extern int __getservbyname_r __P ((__const char *__restrict __name,
__const char *__restrict __proto,
struct servent *__restrict __result_buf,
char *__restrict __buf, size_t __buflen,
struct servent **__restrict __result));
extern int getservbyname_r __P ((__const char *__restrict __name,
__const char *__restrict __proto,
struct servent *__restrict __result_buf,
char *__restrict __buf, size_t __buflen,
struct servent **__restrict __result));
extern int __getservbyport_r __P ((int __port,
__const char *__restrict __proto,
struct servent *__restrict __result_buf,
char *__restrict __buf, size_t __buflen,
struct servent **__restrict __result));
extern int getservbyport_r __P ((int __port, __const char *__restrict __proto,
struct servent *__restrict __result_buf,
char *__restrict __buf, size_t __buflen,
struct servent **__restrict __result));
#endif /* misc */
/* Description of data base entry for a single service. */
struct protoent
{
char *p_name; /* Official protocol name. */
char **p_aliases; /* Alias list. */
int p_proto; /* Protocol number. */
};
/* Open protocol data base files and mark them as staying open even
after a later search if STAY_OPEN is non-zero. */
extern void setprotoent __P ((int __stay_open));
/* Close protocol data base files and clear `stay open' flag. */
extern void endprotoent __P ((void));
/* Get next entry from protocol data base file. Open data base if
necessary. */
extern struct protoent *getprotoent __P ((void));
/* Return entry from protocol data base for network with NAME. */
extern struct protoent *getprotobyname __P ((__const char *__name));
/* Return entry from protocol data base which number is PROTO. */
extern struct protoent *getprotobynumber __P ((int __proto));
#ifdef __USE_MISC
/* Reentrant versions of the functions above. The additional
arguments specify a buffer of BUFLEN starting at BUF. */
extern int __getprotoent_r __P ((struct protoent *__restrict __result_buf,
char *__restrict __buf, size_t __buflen,
struct protoent **__restrict __result));
extern int getprotoent_r __P ((struct protoent *__restrict __result_buf,
char *__restrict __buf, size_t __buflen,
struct protoent **__restrict __result));
extern int __getprotobyname_r __P ((__const char *__restrict __name,
struct protoent *__restrict __result_buf,
char *__restrict __buf, size_t __buflen,
struct protoent **__restrict __result));
extern int getprotobyname_r __P ((__const char *__restrict __name,
struct protoent *__restrict __result_buf,
char *__restrict __buf, size_t __buflen,
struct protoent **__restrict __result));
extern int __getprotobynumber_r __P ((int __proto,
struct protoent *__restrict __res_buf,
char *__restrict __buf, size_t __buflen,
struct protoent **__restrict __result));
extern int getprotobynumber_r __P ((int __proto,
struct protoent *__restrict __result_buf,
char *__restrict __buf, size_t __buflen,
struct protoent **__restrict __result));
#endif /* misc */
/* Establish network group NETGROUP for enumeration. */
extern int setnetgrent __P ((__const char *__netgroup));
/* Free all space allocated by previous `setnetgrent' call. */
extern void endnetgrent __P ((void));
/* Get next member of netgroup established by last `setnetgrent' call
and return pointers to elements in HOSTP, USERP, and DOMAINP. */
extern int getnetgrent __P ((char **__restrict __hostp,
char **__restrict __userp,
char **__restrict __domainp));
/* Test whether NETGROUP contains the triple (HOST,USER,DOMAIN). */
extern int innetgr __P ((__const char *__netgroup, __const char *__host,
__const char *__user, __const char *domain));
#ifdef __USE_MISC
/* Reentrant version of `getnetgrent' where result is placed in BUFFER. */
extern int __getnetgrent_r __P ((char **__restrict __hostp,
char **__restrict __userp,
char **__restrict __domainp,
char *__restrict __buffer, size_t __buflen));
extern int getnetgrent_r __P ((char **__restrict __hostp,
char **__restrict __userp,
char **__restrict __domainp,
char *__restrict __buffer, size_t __buflen));
#endif /* misc */
#ifdef __USE_BSD
/* Call `rshd' at port RPORT on remote machine *AHOST to execute CMD.
The local user is LOCUSER, on the remote machine the command is
executed as REMUSER. In *FD2P the descriptor to the socket for the
connection is returned. The caller must have the right to use a
reserved port. When the function returns *AHOST contains the
official host name. */
extern int rcmd __P ((char **__restrict __ahost, unsigned short int __rport,
__const char *__restrict __locuser,
__const char *__restrict __remuser,
__const char *__restrict __cmd, int *__restrict __fd2p));
/* Call `rexecd' at port RPORT on remote machine *AHOST to execute
CMD. The process runs at the remote machine using the ID of user
NAME whose cleartext password is PASSWD. In *FD2P the descriptor
to the socket for the connection is returned. When the function
returns *AHOST contains the official host name. */
extern int rexec __P ((char **__restrict __ahost, int __rport,
__const char *__restrict __name,
__const char *__restrict __pass,
__const char *__restrict __cmd,
int *__restrict __fd2p));
/* Check whether user REMUSER on system RHOST is allowed to login as LOCUSER.
If SUSER is not zero the user tries to become superuser. Return 0 if
it is possible. */
extern int ruserok __P ((__const char *__rhost, int __suser,
__const char *__remuser, __const char *__locuser));
/* Try to allocate reserved port, returning a descriptor for a socket opened
at this port or -1 if unsuccessful. The search for an available port
will start at ALPORT and continues with lower numbers. */
extern int rresvport __P ((int *__alport));
#endif
/* Extension from POSIX.1g. */
#ifdef __USE_POSIX
/* Structure to contain information about address of a service provider. */
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. */
int ai_addrlen; /* Length of socket address. */
struct sockaddr *ai_addr; /* Socket address for socket. */
char *ai_canonname; /* Canonical name for service location. */
struct addrinfo *ai_next; /* Pointer to next in list. */
};
/* Possible values for `ai_flags' field in `addrinfo' structure. */
# define AI_PASSIVE 1 /* Socket address is intended for `bind'. */
# define AI_CANONNAME 2 /* Request for canonical name. */
# define AI_NUMERICHOST 3 /* Don't use name resolution. */
/* Error values for `getaddrinfo' function. */
# define EAI_BADFLAGS -1 /* Invalid value for `ai_flags' field. */
# define EAI_NONAME -2 /* NAME or SERVICE is unknown. */
# define EAI_AGAIN -3 /* Temporary failure in name resolution. */
# define EAI_FAIL -4 /* Non-recoverable failure in name res. */
# 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 returned in `errno'. */
# define NI_MAXHOST 1025
# define NI_MAXSERV 32
# define NI_NUMERICHOST 1 /* Don't try to look up hostname. */
# define NI_NUMERICSERV 2 /* Don't convert port number to name. */
# define NI_NOFQDN 4 /* Only return nodename portion. */
# define NI_NAMEREQD 8 /* Don't return numeric addresses. */
# define NI_DGRAM 16 /* Look up UDP service rather than TCP. */
/* Translate name of a service location and/or a service name to set of
socket addresses. */
extern int getaddrinfo __P ((__const char *__restrict __name,
__const char *__restrict __service,
__const struct addrinfo *__restrict __req,
struct addrinfo **__restrict __pai));
/* Free `addrinfo' structure AI including associated storage. */
extern void freeaddrinfo __P ((struct addrinfo *__ai));
/* Convert error return from getaddrinfo() to a string. */
extern char *gai_strerror __P ((int __ecode));
/* Translate a socket address to a location and service name. */
extern int getnameinfo __P ((__const struct sockaddr *__restrict __sa,
socklen_t __salen,
char *__restrict __host, size_t __hostlen,
char *__restrict __serv, size_t __servlen,
int __flags));
#endif /* POSIX */
__END_DECLS
#endif /* netdb.h */
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