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#ifdef HAVE_CASPER
36#define WITH_CASPER
37#endif
38
39#include <sys/socket.h>	/* socklen_t */
40
41struct addrinfo;
42struct hostent;
43
44#ifdef WITH_CASPER
45struct hostent *cap_gethostbyname(cap_channel_t *chan, const char *name);
46struct hostent *cap_gethostbyname2(cap_channel_t *chan, const char *name,
47    int type);
48struct hostent *cap_gethostbyaddr(cap_channel_t *chan, const void *addr,
49    socklen_t len, int type);
50
51int cap_getaddrinfo(cap_channel_t *chan, const char *hostname,
52    const char *servname, const struct addrinfo *hints, struct addrinfo **res);
53int cap_getnameinfo(cap_channel_t *chan, const struct sockaddr *sa,
54    socklen_t salen, char *host, size_t hostlen, char *serv, size_t servlen,
55    int flags);
56
57int cap_dns_type_limit(cap_channel_t *chan, const char * const *types,
58    size_t ntypes);
59int cap_dns_family_limit(cap_channel_t *chan, const int *families,
60    size_t nfamilies);
61#else
62#define	cap_gethostbyname(chan, name)		 gethostbyname(name)
63#define cap_gethostbyname2(chan, name, type)	 gethostbyname2(name, type)
64#define cap_gethostbyaddr(chan, addr, len, type) gethostbyaddr(addr, len, type)
65
66#define	cap_getaddrinfo(chan, hostname, servname, hints, res)			\
67	getaddrinfo(hostname, servname, hints, res)
68#define	cap_getnameinfo(chan, sa, salen, host, hostlen, serv, servlen, flags)	\
69	getnameinfo(sa, salen, host, hostlen, serv, servlen, flags)
70
71#define	cap_dns_type_limit(chan, types, ntypes)		(0)
72#define cap_dns_family_limit(chan, families, nfamilies)	(0)
73#endif
74
75#endif	/* !_CAP_DNS_H_ */
76