1 /* $NetBSD: ntp_intres.h,v 1.1.1.2 2013/12/27 23:30:45 christos Exp $ */ 2 3 /* 4 * ntp_intres.h - client interface to blocking-worker name resolution. 5 */ 6 #ifndef NTP_INTRES_H 7 #define NTP_INTRES_H 8 9 #include <ntp_worker.h> 10 11 #ifdef WORKER 12 #define INITIAL_DNS_RETRY 2 /* seconds between queries */ 13 14 /* 15 * you call getaddrinfo_sometime(name, service, &hints, retry, callback_func, context); 16 * later (*callback_func)(rescode, gai_errno, context, name, service, hints, ai_result) is called. 17 */ 18 typedef void (*gai_sometime_callback) 19 (int, int, void *, const char *, const char *, 20 const struct addrinfo *, const struct addrinfo *); 21 extern int getaddrinfo_sometime(const char *, const char *, 22 const struct addrinfo *, int, 23 gai_sometime_callback, void *); 24 /* 25 * In gai_sometime_callback routines, the resulting addrinfo list is 26 * only available until the callback returns. To hold on to the list 27 * of addresses after the callback returns, use copy_addrinfo_list(): 28 * 29 * struct addrinfo *copy_addrinfo_list(const struct addrinfo *); 30 */ 31 32 33 /* 34 * you call getnameinfo_sometime(sockaddr, namelen, servlen, flags, callback_func, context); 35 * later (*callback_func)(rescode, gni_errno, sockaddr, flags, name, service, context) is called. 36 */ 37 typedef void (*gni_sometime_callback) 38 (int, int, sockaddr_u *, int, const char *, 39 const char *, void *); 40 extern int getnameinfo_sometime(sockaddr_u *, size_t, size_t, int, 41 gni_sometime_callback, void *); 42 #endif /* WORKER */ 43 44 /* intres_timeout_req() is provided by the client, ntpd or sntp. */ 45 extern void intres_timeout_req(u_int); 46 47 #endif /* NTP_INTRES_H */ 48