1/*-
2 * Copyright (c) 2012 The FreeBSD Foundation
3 * All rights reserved.
4 *
5 * This software was developed by Pawel Jakub Dawidek under sponsorship from
6 * the FreeBSD Foundation.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 * $FreeBSD$
30 */
31
32#ifndef	_CAP_DNS_H_
33#define	_CAP_DNS_H_
34
35#include <sys/socket.h>	/* socklen_t */
36
37struct addrinfo;
38struct hostent;
39
40struct hostent *cap_gethostbyname(cap_channel_t *chan, const char *name);
41struct hostent *cap_gethostbyname2(cap_channel_t *chan, const char *name,
42    int type);
43struct hostent *cap_gethostbyaddr(cap_channel_t *chan, const void *addr,
44    socklen_t len, int type);
45
46int cap_getaddrinfo(cap_channel_t *chan, const char *hostname,
47    const char *servname, const struct addrinfo *hints, struct addrinfo **res);
48int cap_getnameinfo(cap_channel_t *chan, const struct sockaddr *sa,
49    socklen_t salen, char *host, size_t hostlen, char *serv, size_t servlen,
50    int flags);
51
52int cap_dns_type_limit(cap_channel_t *chan, const char * const *types,
53    size_t ntypes);
54int cap_dns_family_limit(cap_channel_t *chan, const int *families,
55    size_t nfamilies);
56
57#endif	/* !_CAP_DNS_H_ */
58