diff options
Diffstat (limited to 'resolv/netdb.h')
| -rw-r--r-- | resolv/netdb.h | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/resolv/netdb.h b/resolv/netdb.h index 954085f97d..38622e87fe 100644 --- a/resolv/netdb.h +++ b/resolv/netdb.h @@ -357,6 +357,50 @@ extern int getnetgrent_r __P ((char **__hostp, char **__userp, char *__buffer, int __buflen)); #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. */ + +/* 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'. */ + + +/* 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)); + +/* Free `addrinfo' structure AI including associated storage. */ +extern void freeaddrinfo __P ((struct addrinfo *__ai)); +#endif /* POSIX */ + __END_DECLS #endif /* netdb.h */ |