asyncns.h

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#ifndef fooasyncnshfoo
#define fooasyncnshfoo

/***
  This file is part of libasyncns.

  Copyright 2005-2008 Lennart Poettering

  libasyncns is free software; you can redistribute it and/or modify
  it under the terms of the GNU Lesser General Public License as
  published by the Free Software Foundation, either version 2.1 of the
  License, or (at your option) any later version.

  libasyncns is distributed in the hope that it will be useful, but
  WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  Lesser General Public License for more details.

  You should have received a copy of the GNU Lesser General Public
  License along with libasyncns. If not, see
  <http://www.gnu.org/licenses/>.
***/

#include <sys/types.h>
#include <sys/socket.h>
#include <netdb.h>

#ifdef  __cplusplus
extern "C" {
#endif

typedef struct asyncns asyncns_t;

typedef struct asyncns_query asyncns_query_t;

asyncns_t* asyncns_new(unsigned n_proc);

void asyncns_free(asyncns_t *asyncns);

int asyncns_fd(asyncns_t *asyncns);

int asyncns_wait(asyncns_t *asyncns, int block);

asyncns_query_t* asyncns_getaddrinfo(asyncns_t *asyncns, const char *node, const char *service, const struct addrinfo *hints);

int asyncns_getaddrinfo_done(asyncns_t *asyncns, asyncns_query_t* q, struct addrinfo **ret_res);

asyncns_query_t* asyncns_getnameinfo(asyncns_t *asyncns, const struct sockaddr *sa, socklen_t salen, int flags, int gethost, int getserv);

int asyncns_getnameinfo_done(asyncns_t *asyncns, asyncns_query_t* q, char *ret_host, size_t hostlen, char *ret_serv, size_t servlen);

asyncns_query_t* asyncns_res_query(asyncns_t *asyncns, const char *dname, int class, int type);

asyncns_query_t* asyncns_res_search(asyncns_t *asyncns, const char *dname, int class, int type);

int asyncns_res_done(asyncns_t *asyncns, asyncns_query_t* q, unsigned char **answer);

asyncns_query_t* asyncns_getnext(asyncns_t *asyncns);

int asyncns_getnqueries(asyncns_t *asyncns);

void asyncns_cancel(asyncns_t *asyncns, asyncns_query_t* q);

void asyncns_freeaddrinfo(struct addrinfo *ai);

void asyncns_freeanswer(unsigned char *answer);

int asyncns_isdone(asyncns_t *asyncns, asyncns_query_t*q);

void asyncns_setuserdata(asyncns_t *asyncns, asyncns_query_t *q, void *userdata);

void* asyncns_getuserdata(asyncns_t *asyncns, asyncns_query_t *q);

#ifdef  __cplusplus
}
#endif

#endif

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