diff options
Diffstat (limited to 'resolv/netdb.h')
| -rw-r--r-- | resolv/netdb.h | 72 |
1 files changed, 61 insertions, 11 deletions
diff --git a/resolv/netdb.h b/resolv/netdb.h index ae3f95aca1..79c147e6bb 100644 --- a/resolv/netdb.h +++ b/resolv/netdb.h @@ -33,6 +33,11 @@ # include <rpc/netdb.h> #endif +#ifdef __USE_GNU +# define __need_sigevent_t +# include <bits/siginfo.h> +#endif + #include <bits/netdb.h> /* Absolute file name for network data base files. */ @@ -412,23 +417,48 @@ struct addrinfo 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 __unused[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. */ /* 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'. */ +# 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. */ +# endif # define NI_MAXHOST 1025 # define NI_MAXSERV 32 @@ -458,6 +488,26 @@ extern int getnameinfo (__const struct sockaddr *__restrict __sa, socklen_t __hostlen, char *__restrict __serv, socklen_t __servlen, unsigned int __flags) __THROW; +# 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. */ +extern int getaddrinfo_a (int __mode, struct gaicb *__list[__restrict_arr], + int __ent, struct sigevent *__restrict __sig) + __THROW; + +/* 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. */ +extern int gai_suspend (__const struct gaicb *__const __list[], int __ent, + const struct timespec *__timeout) __THROW; + +/* 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 */ #endif /* POSIX */ __END_DECLS |