X-Git-Url: http://wagnertech.de/git?a=blobdiff_plain;f=i686-linux-gnu-4.7%2Fusr%2Finclude%2Fnetdb.h;fp=i686-linux-gnu-4.7%2Fusr%2Finclude%2Fnetdb.h;h=003800e882a2aff9d75d63ad9e9da366b09f6c91;hb=94df942c2c7bd3457276fe5b7367623cbb8c1302;hp=0000000000000000000000000000000000000000;hpb=4dd7d9155a920895ff7b1cb6b9c9c676aa62000a;p=cross.git
diff --git a/i686-linux-gnu-4.7/usr/include/netdb.h b/i686-linux-gnu-4.7/usr/include/netdb.h
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+ /* Copyright (C) 1996-2018 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 Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ . */
+
+/* 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
+
+#include
+#include
+#ifdef __USE_MISC
+/* This is necessary to make this include file properly replace the
+ Sun version. */
+# include
+#endif
+
+#ifdef __USE_GNU
+# include
+# include
+#endif
+
+#include
+
+/* 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
+
+#if defined __USE_MISC || !defined __USE_XOPEN2K8
+/* Error status for non-reentrant lookup functions.
+ We use a macro to access always the thread-specific `h_errno' variable. */
+# define h_errno (*__h_errno_location ())
+
+/* Function to get address of global `h_errno' variable. */
+extern int *__h_errno_location (void) __THROW __attribute__ ((__const__));
+
+
+/* Possible values left in `h_errno'. */
+# 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. */
+#endif
+#ifdef __USE_MISC
+# define NETDB_INTERNAL -1 /* See errno. */
+# define NETDB_SUCCESS 0 /* No problem. */
+# define NO_ADDRESS NO_DATA /* No address, look for MX record. */
+#endif
+
+#if defined __USE_XOPEN2K || defined __USE_XOPEN_EXTENDED
+/* Highest reserved Internet port number. */
+# define IPPORT_RESERVED 1024
+#endif
+
+#ifdef __USE_GNU
+/* Scope delimiter for getaddrinfo(), getnameinfo(). */
+# define SCOPE_DELIMITER '%'
+#endif
+
+#ifdef __USE_MISC
+/* Print error indicated by `h_errno' variable on standard error. STR
+ if non-null is printed before the error string. */
+extern void herror (const char *__str) __THROW;
+
+/* Return string associated with error ERR_NUM. */
+extern const char *hstrerror (int __err_num) __THROW;
+#endif
+
+
+/* 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. */
+#ifdef __USE_MISC
+# define h_addr h_addr_list[0] /* Address, for backward compatibility.*/
+#endif
+};
+
+/* Open host data base files and mark them as staying open even after
+ a later search if STAY_OPEN is non-zero.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern void sethostent (int __stay_open);
+
+/* Close host data base files and clear `stay open' flag.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern void endhostent (void);
+
+/* Get next entry from host data base file. Open data base if
+ necessary.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern struct hostent *gethostent (void);
+
+/* Return entry from host data base which address match ADDR with
+ length LEN and type TYPE.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern struct hostent *gethostbyaddr (const void *__addr, __socklen_t __len,
+ int __type);
+
+/* Return entry from host data base for host with NAME.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern struct hostent *gethostbyname (const char *__name);
+
+#ifdef __USE_MISC
+/* 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.
+
+ This function is not part of POSIX and therefore no official
+ cancellation point. But due to similarity with an POSIX interface
+ or due to the implementation it is a cancellation point and
+ therefore not marked with __THROW. */
+extern struct hostent *gethostbyname2 (const char *__name, int __af);
+
+/* 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.
+
+ These functions are not part of POSIX and therefore no official
+ cancellation point. But due to similarity with an POSIX interface
+ or due to the implementation they are cancellation points and
+ therefore not marked with __THROW. */
+extern int gethostent_r (struct hostent *__restrict __result_buf,
+ char *__restrict __buf, size_t __buflen,
+ struct hostent **__restrict __result,
+ int *__restrict __h_errnop);
+
+extern int gethostbyaddr_r (const void *__restrict __addr, __socklen_t __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 (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 (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 */
+
+
+/* Open network data base files and mark them as staying open even
+ after a later search if STAY_OPEN is non-zero.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern void setnetent (int __stay_open);
+
+/* Close network data base files and clear `stay open' flag.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern void endnetent (void);
+
+/* Get next entry from network data base file. Open data base if
+ necessary.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern struct netent *getnetent (void);
+
+/* Return entry from network data base which address match NET and
+ type TYPE.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern struct netent *getnetbyaddr (uint32_t __net, int __type);
+
+/* Return entry from network data base for network with NAME.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern struct netent *getnetbyname (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.
+
+ These functions are not part of POSIX and therefore no official
+ cancellation point. But due to similarity with an POSIX interface
+ or due to the implementation they are cancellation points and
+ therefore not marked with __THROW. */
+extern int getnetent_r (struct netent *__restrict __result_buf,
+ char *__restrict __buf, size_t __buflen,
+ struct netent **__restrict __result,
+ int *__restrict __h_errnop);
+
+extern int getnetbyaddr_r (uint32_t __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 (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.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern void setservent (int __stay_open);
+
+/* Close service data base files and clear `stay open' flag.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern void endservent (void);
+
+/* Get next entry from service data base file. Open data base if
+ necessary.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern struct servent *getservent (void);
+
+/* Return entry from network data base for network with NAME and
+ protocol PROTO.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern struct servent *getservbyname (const char *__name, const char *__proto);
+
+/* Return entry from service data base which matches port PORT and
+ protocol PROTO.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern struct servent *getservbyport (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.
+
+ These functions are not part of POSIX and therefore no official
+ cancellation point. But due to similarity with an POSIX interface
+ or due to the implementation they are cancellation points and
+ therefore not marked with __THROW. */
+extern int getservent_r (struct servent *__restrict __result_buf,
+ char *__restrict __buf, size_t __buflen,
+ struct servent **__restrict __result);
+
+extern int getservbyname_r (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 (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.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern void setprotoent (int __stay_open);
+
+/* Close protocol data base files and clear `stay open' flag.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern void endprotoent (void);
+
+/* Get next entry from protocol data base file. Open data base if
+ necessary.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern struct protoent *getprotoent (void);
+
+/* Return entry from protocol data base for network with NAME.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern struct protoent *getprotobyname (const char *__name);
+
+/* Return entry from protocol data base which number is PROTO.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern struct protoent *getprotobynumber (int __proto);
+
+
+#ifdef __USE_MISC
+/* Reentrant versions of the functions above. The additional
+ arguments specify a buffer of BUFLEN starting at BUF.
+
+ These functions are not part of POSIX and therefore no official
+ cancellation point. But due to similarity with an POSIX interface
+ or due to the implementation they are cancellation points and
+ therefore not marked with __THROW. */
+extern int getprotoent_r (struct protoent *__restrict __result_buf,
+ char *__restrict __buf, size_t __buflen,
+ struct protoent **__restrict __result);
+
+extern int getprotobyname_r (const char *__restrict __name,
+ struct protoent *__restrict __result_buf,
+ char *__restrict __buf, size_t __buflen,
+ struct protoent **__restrict __result);
+
+extern int getprotobynumber_r (int __proto,
+ struct protoent *__restrict __result_buf,
+ char *__restrict __buf, size_t __buflen,
+ struct protoent **__restrict __result);
+
+
+/* Establish network group NETGROUP for enumeration.
+
+ This function is not part of POSIX and therefore no official
+ cancellation point. But due to similarity with an POSIX interface
+ or due to the implementation it is a cancellation point and
+ therefore not marked with __THROW. */
+extern int setnetgrent (const char *__netgroup);
+
+/* Free all space allocated by previous `setnetgrent' call.
+
+ This function is not part of POSIX and therefore no official
+ cancellation point. But due to similarity with an POSIX interface
+ or due to the implementation it is a cancellation point and
+ therefore not marked with __THROW. */
+extern void endnetgrent (void);
+
+/* Get next member of netgroup established by last `setnetgrent' call
+ and return pointers to elements in HOSTP, USERP, and DOMAINP.
+
+ This function is not part of POSIX and therefore no official
+ cancellation point. But due to similarity with an POSIX interface
+ or due to the implementation it is a cancellation point and
+ therefore not marked with __THROW. */
+extern int getnetgrent (char **__restrict __hostp,
+ char **__restrict __userp,
+ char **__restrict __domainp);
+
+
+/* Test whether NETGROUP contains the triple (HOST,USER,DOMAIN).
+
+ This function is not part of POSIX and therefore no official
+ cancellation point. But due to similarity with an POSIX interface
+ or due to the implementation it is a cancellation point and
+ therefore not marked with __THROW. */
+extern int innetgr (const char *__netgroup, const char *__host,
+ const char *__user, const char *__domain);
+
+/* Reentrant version of `getnetgrent' where result is placed in BUFFER.
+
+ This function is not part of POSIX and therefore no official
+ cancellation point. But due to similarity with an POSIX interface
+ or due to the implementation it is a cancellation point and
+ therefore not marked with __THROW. */
+extern int getnetgrent_r (char **__restrict __hostp,
+ char **__restrict __userp,
+ char **__restrict __domainp,
+ char *__restrict __buffer, size_t __buflen);
+#endif /* misc */
+
+
+#ifdef __USE_MISC
+/* 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.
+
+ This function is not part of POSIX and therefore no official
+ cancellation point. But due to similarity with an POSIX interface
+ or due to the implementation it is a cancellation point and
+ therefore not marked with __THROW. */
+extern int rcmd (char **__restrict __ahost, unsigned short int __rport,
+ const char *__restrict __locuser,
+ const char *__restrict __remuser,
+ const char *__restrict __cmd, int *__restrict __fd2p);
+
+/* This is the equivalent function where the protocol can be selected
+ and which therefore can be used for IPv6.
+
+ This function is not part of POSIX and therefore no official
+ cancellation point. But due to similarity with an POSIX interface
+ or due to the implementation it is a cancellation point and
+ therefore not marked with __THROW. */
+extern int rcmd_af (char **__restrict __ahost, unsigned short int __rport,
+ const char *__restrict __locuser,
+ const char *__restrict __remuser,
+ const char *__restrict __cmd, int *__restrict __fd2p,
+ sa_family_t __af);
+
+/* 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.
+
+ This function is not part of POSIX and therefore no official
+ cancellation point. But due to similarity with an POSIX interface
+ or due to the implementation it is a cancellation point and
+ therefore not marked with __THROW. */
+extern int rexec (char **__restrict __ahost, int __rport,
+ const char *__restrict __name,
+ const char *__restrict __pass,
+ const char *__restrict __cmd, int *__restrict __fd2p);
+
+/* This is the equivalent function where the protocol can be selected
+ and which therefore can be used for IPv6.
+
+ This function is not part of POSIX and therefore no official
+ cancellation point. But due to similarity with an POSIX interface
+ or due to the implementation it is a cancellation point and
+ therefore not marked with __THROW. */
+extern int rexec_af (char **__restrict __ahost, int __rport,
+ const char *__restrict __name,
+ const char *__restrict __pass,
+ const char *__restrict __cmd, int *__restrict __fd2p,
+ sa_family_t __af);
+
+/* 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.
+
+ This function is not part of POSIX and therefore no official
+ cancellation point. But due to similarity with an POSIX interface
+ or due to the implementation it is a cancellation point and
+ therefore not marked with __THROW. */
+extern int ruserok (const char *__rhost, int __suser,
+ const char *__remuser, const char *__locuser);
+
+/* This is the equivalent function where the protocol can be selected
+ and which therefore can be used for IPv6.
+
+ This function is not part of POSIX and therefore no official
+ cancellation point. But due to similarity with an POSIX interface
+ or due to the implementation it is a cancellation point and
+ therefore not marked with __THROW. */
+extern int ruserok_af (const char *__rhost, int __suser,
+ const char *__remuser, const char *__locuser,
+ sa_family_t __af);
+
+/* Check whether user REMUSER on system indicated by IPv4 address
+ RADDR is allowed to login as LOCUSER. Non-IPv4 (e.g., IPv6) are
+ not supported. If SUSER is not zero the user tries to become
+ superuser. Return 0 if it is possible.
+
+ This function is not part of POSIX and therefore no official
+ cancellation point. But due to similarity with an POSIX interface
+ or due to the implementation it is a cancellation point and
+ therefore not marked with __THROW. */
+extern int iruserok (uint32_t __raddr, int __suser,
+ const char *__remuser, const char *__locuser);
+
+/* This is the equivalent function where the pfamiliy if the address
+ pointed to by RADDR is determined by the value of AF. It therefore
+ can be used for IPv6
+
+ This function is not part of POSIX and therefore no official
+ cancellation point. But due to similarity with an POSIX interface
+ or due to the implementation it is a cancellation point and
+ therefore not marked with __THROW. */
+extern int iruserok_af (const void *__raddr, int __suser,
+ const char *__remuser, const char *__locuser,
+ sa_family_t __af);
+
+/* 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.
+
+ This function is not part of POSIX and therefore no official
+ cancellation point. But due to similarity with an POSIX interface
+ or due to the implementation it is a cancellation point and
+ therefore not marked with __THROW. */
+extern int rresvport (int *__alport);
+
+/* This is the equivalent function where the protocol can be selected
+ and which therefore can be used for IPv6.
+
+ This function is not part of POSIX and therefore no official
+ cancellation point. But due to similarity with an POSIX interface
+ or due to the implementation it is a cancellation point and
+ therefore not marked with __THROW. */
+extern int rresvport_af (int *__alport, sa_family_t __af);
+#endif
+
+
+/* Extension from POSIX.1:2001. */
+#ifdef __USE_XOPEN2K
+/* 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. */
+ socklen_t 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. */
+};
+
+# ifdef __USE_GNU
+/* Structure used as control block for asynchronous lookup. */
+struct gaicb
+{
+ const char *ar_name; /* Name to look up. */
+ const char *ar_service; /* Service name. */
+ const struct addrinfo *ar_request; /* Additional request specification. */
+ struct addrinfo *ar_result; /* Pointer to result. */
+ /* The following are internal elements. */
+ int __return;
+ int __glibc_reserved[5];
+};
+
+/* Lookup mode. */
+# define GAI_WAIT 0
+# define GAI_NOWAIT 1
+# endif
+
+/* Possible values for `ai_flags' field in `addrinfo' structure. */
+# define AI_PASSIVE 0x0001 /* Socket address is intended for `bind'. */
+# define AI_CANONNAME 0x0002 /* Request for canonical name. */
+# define AI_NUMERICHOST 0x0004 /* Don't use name resolution. */
+# define AI_V4MAPPED 0x0008 /* IPv4 mapped addresses are acceptable. */
+# define AI_ALL 0x0010 /* Return IPv4 mapped and IPv6 addresses. */
+# define AI_ADDRCONFIG 0x0020 /* Use configuration of this host to choose
+ returned address type.. */
+# ifdef __USE_GNU
+# define AI_IDN 0x0040 /* IDN encode input (assuming it is encoded
+ in the current locale's character set)
+ before looking it up. */
+# define AI_CANONIDN 0x0080 /* Translate canonical name from IDN format. */
+# define AI_IDN_ALLOW_UNASSIGNED \
+ __glibc_macro_warning ("AI_IDN_ALLOW_UNASSIGNED is deprecated") 0x0100
+# define AI_IDN_USE_STD3_ASCII_RULES \
+ __glibc_macro_warning ("AI_IDN_USE_STD3_ASCII_RULES is deprecated") 0x0200
+# endif
+# define AI_NUMERICSERV 0x0400 /* 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_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_MEMORY -10 /* Memory allocation failure. */
+# define EAI_SYSTEM -11 /* System error returned in `errno'. */
+# define EAI_OVERFLOW -12 /* Argument buffer overflow. */
+# ifdef __USE_GNU
+# define EAI_NODATA -5 /* No address associated with NAME. */
+# define EAI_ADDRFAMILY -9 /* Address family for NAME not supported. */
+# define EAI_INPROGRESS -100 /* Processing request in progress. */
+# define EAI_CANCELED -101 /* Request canceled. */
+# define EAI_NOTCANCELED -102 /* Request not canceled. */
+# define EAI_ALLDONE -103 /* All requests done. */
+# define EAI_INTR -104 /* Interrupted by a signal. */
+# define EAI_IDN_ENCODE -105 /* IDN encoding failed. */
+# endif
+
+# ifdef __USE_MISC
+# define NI_MAXHOST 1025
+# define NI_MAXSERV 32
+# endif
+
+# 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. */
+# ifdef __USE_GNU
+# define NI_IDN 32 /* Convert name from IDN format. */
+# define NI_IDN_ALLOW_UNASSIGNED \
+ __glibc_macro_warning ("NI_IDN_ALLOW_UNASSIGNED is deprecated") 64
+# define NI_IDN_USE_STD3_ASCII_RULES \
+ __glibc_macro_warning ("NI_IDN_USE_STD3_ASCII_RULES is deprecated") 128
+# endif
+
+/* Translate name of a service location and/or a service name to set of
+ socket addresses.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern int getaddrinfo (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 (struct addrinfo *__ai) __THROW;
+
+/* Convert error return from getaddrinfo() to a string. */
+extern const char *gai_strerror (int __ecode) __THROW;
+
+/* Translate a socket address to a location and service name.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern int getnameinfo (const struct sockaddr *__restrict __sa,
+ socklen_t __salen, char *__restrict __host,
+ socklen_t __hostlen, char *__restrict __serv,
+ socklen_t __servlen, int __flags);
+#endif /* POSIX */
+
+#ifdef __USE_GNU
+/* Enqueue ENT requests from the LIST. If MODE is GAI_WAIT wait until all
+ requests are handled. If WAIT is GAI_NOWAIT return immediately after
+ queueing the requests and signal completion according to SIG.
+
+ This function is not part of POSIX and therefore no official
+ cancellation point. But due to similarity with an POSIX interface
+ or due to the implementation it is a cancellation point and
+ therefore not marked with __THROW. */
+extern int getaddrinfo_a (int __mode, struct gaicb *__list[__restrict_arr],
+ int __ent, struct sigevent *__restrict __sig);
+
+/* Suspend execution of the thread until at least one of the ENT requests
+ in LIST is handled. If TIMEOUT is not a null pointer it specifies the
+ longest time the function keeps waiting before returning with an error.
+
+ This function is not part of POSIX and therefore no official
+ cancellation point. But due to similarity with an POSIX interface
+ or due to the implementation it is a cancellation point and
+ therefore not marked with __THROW. */
+extern int gai_suspend (const struct gaicb *const __list[], int __ent,
+ const struct timespec *__timeout);
+
+/* Get the error status of the request REQ. */
+extern int gai_error (struct gaicb *__req) __THROW;
+
+/* Cancel the requests associated with GAICBP. */
+extern int gai_cancel (struct gaicb *__gaicbp) __THROW;
+#endif /* GNU */
+
+__END_DECLS
+
+#endif /* netdb.h */