-/* Copyright (C) 1996 Free Software Foundation, Inc.
+/* Copyright (C) 1996, 1997, 1998, 1999 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it
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>
extern int *__h_errno_location __P ((void)) __attribute__ ((__const__));
#ifdef _LIBC
-/* Retain some binary compatibility with old libraries by having both the
- global variable and the per-thread variable set on error. */
# ifdef _LIBC_REENTRANT
static inline int
__set_h_errno (int __err)
{
- return *__h_errno_location () = h_errno = __err;
+ return *__h_errno_location () = __err;
}
# else
# define __set_h_errno(x) (h_errno = (x))
#endif /* _LIBC */
-#if defined __USE_REENTRANT && (!defined _LIBC || defined _LIBC_REENTRANT)
+#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
#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,
+#define TRY_AGAIN 2 /* Non-Authoritative Host not found,
or SERVERFAIL. */
#define NO_RECOVERY 3 /* Non recoverable errors, FORMERR, REFUSED,
NOTIMP. */
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. */
+#define h_addr h_addr_list[0] /* Address, for backward compatibility. */
};
/* Open host data base files and mark them as staying open even after
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 as `AF_INET' for IPv4 or `AF_INET6'
+ 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_REENTRANT
+#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 *__result_buf, char *__buf,
- size_t __buflen, struct hostent **__result,
- int *__h_errnop));
-extern int gethostent_r __P ((struct hostent *__result_buf, char *__buf,
- size_t __buflen, struct hostent **__result,
- int *__h_errnop));
-
-extern int __gethostbyaddr_r __P ((__const char *__addr, int __len, int __type,
- struct hostent *__result_buf, char *__buf,
- size_t __buflen, struct hostent **__result,
- int *__h_errnop));
-extern int gethostbyaddr_r __P ((__const char *__addr, int __len, int __type,
- struct hostent *__result_buf, char *__buf,
- size_t __buflen, struct hostent **__result,
- int *__h_errnop));
-
-extern int __gethostbyname_r __P ((__const char *__name,
- struct hostent *__result_buf, char *__buf,
- size_t __buflen, struct hostent **__result,
- int *__h_errnop));
-extern int gethostbyname_r __P ((__const char *__name,
- struct hostent *__result_buf, char *__buf,
- size_t __buflen, struct hostent **__result,
- int *__h_errnop));
-
-extern int __gethostbyname2_r __P ((__const char *__name, int __af,
- struct hostent *__result_buf, char *__buf,
- size_t __buflen, struct hostent **__result,
- int *__h_errnop));
-extern int gethostbyname2_r __P ((__const char *__name, int __af,
- struct hostent *__result_buf, char *__buf,
- size_t __buflen, struct hostent **__result,
- int *__h_errnop));
-#endif /* reentrant */
+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 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));
+#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
/* Return entry from network data base for network with NAME. */
extern struct netent *getnetbyname __P ((__const char *__name));
-#ifdef __USE_REENTRANT
+#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 *__result_buf, char *__buf,
- size_t __buflen, struct netent **__result,
- int *__h_errnop));
-extern int getnetent_r __P ((struct netent *__result_buf, char *__buf,
- size_t __buflen, struct netent **__result,
- int *__h_errnop));
-
-extern int __getnetbyaddr_r __P ((unsigned long int __net, int __type,
- struct netent *__result_buf, char *__buf,
- size_t __buflen, struct netent **__result,
- int *__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 *__result_buf, char *__buf,
- size_t __buflen, struct netent **__result,
- int *__h_errnop));
+ 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 *__name,
- struct netent *__result_buf, char *__buf,
- size_t __buflen, struct netent **__result,
- int *__h_errnop));
-extern int getnetbyname_r __P ((__const char *__name,
- struct netent *__result_buf, char *__buf,
- size_t __buflen, struct netent **__result,
- int *__h_errnop));
-#endif /* reentrant */
+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. */
extern struct servent *getservbyport __P ((int __port, __const char *__proto));
-#ifdef __USE_REENTRANT
+#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 *__result_buf, char *__buf,
- size_t __buflen, struct servent **__result));
-extern int getservent_r __P ((struct servent *__result_buf, char *__buf,
- size_t __buflen, struct servent **__result));
-
-extern int __getservbyname_r __P ((__const char *__name, __const char *__proto,
- struct servent *__result_buf, char *__buf,
- size_t __buflen,
- struct servent **__result));
-extern int getservbyname_r __P ((__const char *__name, __const char *__proto,
- struct servent *__result_buf, char *__buf,
- size_t __buflen, struct servent **__result));
-
-extern int __getservbyport_r __P ((int __port, __const char *__proto,
- struct servent *__result_buf, char *__buf,
- size_t __buflen,
- struct servent **__result));
-extern int getservbyport_r __P ((int __port, __const char *__proto,
- struct servent *__result_buf, char *__buf,
- size_t __buflen, struct servent **__result));
-#endif /* reentrant */
+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 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. */
extern struct protoent *getprotobynumber __P ((int __proto));
-#ifdef __USE_REENTRANT
+#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 *__result_buf, char *__buf,
- size_t __buflen, struct protoent **__result));
-extern int getprotoent_r __P ((struct protoent *__result_buf, char *__buf,
- size_t __buflen, struct protoent **__result));
-
-extern int __getprotobyname_r __P ((__const char *__name,
- struct protoent *__result_buf, char *__buf,
- size_t __buflen,
- struct protoent **__result));
-extern int getprotobyname_r __P ((__const char *__name,
- struct protoent *__result_buf, char *__buf,
- size_t __buflen,
- struct protoent **__result));
-
-extern int __getprotobynumber_r __P ((int __proto, struct protoent *__res_buf,
- char *__buf, size_t __buflen,
- struct protoent **__result));
-extern int getprotobynumber_r __P ((int __proto, struct protoent *__result_buf,
- char *__buf, size_t __buflen,
- struct protoent **__result));
-#endif /* reentrant */
+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 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. */
/* 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 **__hostp, char **__userp,
- char **__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_REENTRANT
+#ifdef __USE_MISC
/* Reentrant version of `getnetgrent' where result is placed in BUFFER. */
-extern int __getnetgrent_r __P ((char **__hostp, char **__userp,
- char **__domainp,
- char *__buffer, size_t __buflen));
-extern int getnetgrent_r __P ((char **__hostp, char **__userp,
- char **__domainp,
- char *__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
};
/* 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_PASSIVE 1 /* Socket address is intended for `bind'. */
+# define AI_CANONNAME 2 /* Request for canonical name. */
+# define AI_NUMERICHOST 4 /* 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 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 *__name, __const char *__service,
- __const struct addrinfo *__req,
- struct addrinfo **__pai));
+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
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