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-rw-r--r--include/netdb.h384
1 files changed, 292 insertions, 92 deletions
diff --git a/include/netdb.h b/include/netdb.h
index 4a48d0b97..69812986c 100644
--- a/include/netdb.h
+++ b/include/netdb.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1996,1997,1998,1999,2000,2001 Free Software Foundation, Inc.
+/* Copyright (C) 1996-2002, 2003, 2004 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
@@ -53,8 +53,13 @@
__BEGIN_DECLS
-/* Error status for non-reentrant lookup functions. */
+/* Error status for non-reentrant lookup functions.
+ We use a macro to access always the thread-specific `h_errno' variable. */
+#if defined(__UCLIBC_HAS_THREADS__)
+# define h_errno (*__h_errno_location ())
+#else
extern int h_errno;
+#endif
/* Function to get address of global `h_errno' variable. */
extern int *__h_errno_location (void) __THROW __attribute__ ((__const__));
@@ -63,12 +68,6 @@ extern int *__h_errno_location (void) __THROW __attribute__ ((__const__));
# define __set_h_errno(x) (h_errno = (x))
#endif
-#if defined __UCLIBC_HAS_THREADS__
-/* 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. */
@@ -112,79 +111,118 @@ struct hostent
};
/* 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 (int __stay_open) __THROW;
+ a later search if STAY_OPEN is non-zero.
-/* Close host data base files and clear `stay open' flag. */
-extern void endhostent (void) __THROW;
+ 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. */
-extern struct hostent *gethostent (void) __THROW;
+ 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. */
+ 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) __THROW;
+ int __type);
+
+/* Return entry from host data base for host with NAME.
-/* Return entry from host data base for host with NAME. */
-extern struct hostent *gethostbyname (__const char *__name) __THROW;
+ 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. */
-extern struct hostent *gethostbyname2 (__const char *__name, int __af) __THROW;
+ 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. */
+ 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) __THROW;
+ 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) __THROW;
+ 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) __THROW;
+ 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) __THROW;
+ 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. */
-extern void setnetent (int __stay_open) __THROW;
+ 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.
-/* Close network data base files and clear `stay open' flag. */
-extern void endnetent (void) __THROW;
+ 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. */
-extern struct netent *getnetent (void) __THROW;
+ 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. */
-extern struct netent *getnetbyaddr (uint32_t __net, int __type)
- __THROW;
+ 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.
-/* Return entry from network data base for network with NAME. */
-extern struct netent *getnetbyname (__const char *__name) __THROW;
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern struct netent *getnetbyname (__const char *__name);
#if 0
/* FIXME */
@@ -193,23 +231,28 @@ extern struct netent *getnetbyname (__const char *__name) __THROW;
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. */
+ 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) __THROW;
+ 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) __THROW;
+ 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) __THROW;
+ int *__restrict __h_errnop);
#endif /* misc */
#endif
@@ -224,44 +267,63 @@ struct servent
};
/* 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 (int __stay_open) __THROW;
+ 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.
-/* Close service data base files and clear `stay open' flag. */
-extern void endservent (void) __THROW;
+ 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. */
-extern struct servent *getservent (void) __THROW;
+ 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. */
+ 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) __THROW;
+ __const char *__proto);
/* Return entry from service data base which matches port PORT and
- protocol PROTO. */
-extern struct servent *getservbyport (int __port, __const char *__proto)
- __THROW;
+ 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. */
+ 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) __THROW;
+ 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) __THROW;
+ 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) __THROW;
+ struct servent **__restrict __result);
#endif /* misc */
@@ -274,39 +336,110 @@ struct protoent
};
/* 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 (int __stay_open) __THROW;
+ 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. */
-extern void endprotoent (void) __THROW;
+/* 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. */
-extern struct protoent *getprotoent (void) __THROW;
+ 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.
-/* Return entry from protocol data base for network with NAME. */
-extern struct protoent *getprotobyname (__const char *__name) __THROW;
+ 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. */
-extern struct protoent *getprotobynumber (int __proto) __THROW;
+/* 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. */
+ 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) __THROW;
+ 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) __THROW;
+ 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) __THROW;
+ struct protoent **__restrict __result);
+
+
+#if defined(__UCLIBC_HAS_NETGROUP__)
+/* 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 /* UCLIBC_HAS_NETGROUP */
#endif /* misc */
@@ -316,68 +449,106 @@ extern int getprotobynumber_r (int __proto,
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. */
+ 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)
- __THROW;
+ __const char *__restrict __cmd, int *__restrict __fd2p);
#if 0
/* FIXME */
/* This is the equivalent function where the protocol can be selected
- and which therefore can be used for IPv6. */
+ 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) __THROW;
+ sa_family_t __af);
#endif
/* 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. */
+ 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)
- __THROW;
+ __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. */
+ 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) __THROW;
+ 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. */
+ 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) __THROW;
+ __const char *__remuser, __const char *__locuser);
#if 0
/* FIXME */
/* This is the equivalent function where the protocol can be selected
- and which therefore can be used for IPv6. */
+ 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) __THROW;
+ sa_family_t __af);
#endif
/* 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 (int *__alport) __THROW;
+ 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);
#if 0
/* FIXME */
/* This is the equivalent function where the protocol can be selected
- and which therefore can be used for IPv6. */
-extern int rresvport_af (int *__alport, sa_family_t __af) __THROW;
+ 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
#endif
@@ -401,6 +572,21 @@ struct addrinfo
# 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 0x0100 /* Don't reject unassigned Unicode
+ code points. */
+# define AI_IDN_USE_STD3_ASCII_RULES 0x0200 /* Validate strings according to
+ STD3 rules. */
+# 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. */
@@ -414,12 +600,14 @@ struct addrinfo
# 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_OVERFLOW -12 /* Argument buffer overflow. */
# ifdef __USE_GNU
# 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
# define NI_MAXHOST 1025
@@ -430,13 +618,23 @@ struct addrinfo
# 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 64 /* Don't reject unassigned Unicode
+ code points. */
+# define NI_IDN_USE_STD3_ASCII_RULES 128 /* Validate strings according to
+ STD3 rules. */
+# endif
/* Translate name of a service location and/or a service name to set of
- socket addresses. */
+ 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) __THROW;
+ struct addrinfo **__restrict __pai);
/* Free `addrinfo' structure AI including associated storage. */
extern void freeaddrinfo (struct addrinfo *__ai) __THROW;
@@ -444,12 +642,14 @@ 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. */
+/* 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, unsigned int __flags) __THROW;
-
+ socklen_t __servlen, unsigned int __flags);
#endif /* POSIX */
__END_DECLS