1/*-
2 * Copyright (C) 2005 The FreeBSD Project.  All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
19 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
23 * SUCH DAMAGE.
24 *
25 * $FreeBSD$
26 */
27
28#ifndef _NETDB_PRIVATE_H_
29#define _NETDB_PRIVATE_H_
30
31#include <stdio.h>				/* XXX: for FILE */
32
33#define	NETDB_THREAD_ALLOC(name)					\
34static struct name name;						\
35static thread_key_t name##_key;						\
36static once_t name##_init_once = ONCE_INITIALIZER;			\
37static int name##_thr_keycreated = 0;					\
38\
39static void name##_free(void *);					\
40\
41static void								\
42name##_keycreate(void)							\
43{									\
44	name##_thr_keycreated =						\
45	    (thr_keycreate(&name##_key, name##_free) == 0);		\
46}									\
47\
48struct name *								\
49__##name##_init(void)							\
50{									\
51	struct name *he;						\
52									\
53	if (thr_main() != 0)						\
54		return (&name);						\
55	if (thr_once(&name##_init_once, name##_keycreate) != 0 ||	\
56	    !name##_thr_keycreated)					\
57		return (NULL);						\
58	if ((he = thr_getspecific(name##_key)) != NULL)			\
59		return (he);						\
60	if ((he = calloc(1, sizeof(*he))) == NULL)			\
61		return (NULL);						\
62	if (thr_setspecific(name##_key, he) == 0)			\
63		return (he);						\
64	free(he);							\
65	return (NULL);							\
66}
67
68#define	_MAXALIASES	35
69#define	_MAXLINELEN	1024
70#define	_MAXADDRS	35
71#define	_HOSTBUFSIZE	(8 * 1024)
72#define	_NETBUFSIZE	1025
73
74struct hostent_data {
75	uint32_t host_addr[4];			/* IPv4 or IPv6 */
76	char *h_addr_ptrs[_MAXADDRS + 1];
77	char *host_aliases[_MAXALIASES];
78	char hostbuf[_HOSTBUFSIZE];
79	FILE *hostf;
80	int stayopen;
81#ifdef YP
82	char *yp_domain;
83#endif
84};
85
86struct netent_data {
87	char *net_aliases[_MAXALIASES];
88	char netbuf[_NETBUFSIZE];
89	FILE *netf;
90	int stayopen;
91#ifdef YP
92	char *yp_domain;
93#endif
94};
95
96struct protoent_data {
97	FILE *fp;
98	char *aliases[_MAXALIASES];
99	int stayopen;
100	char line[_MAXLINELEN + 1];
101};
102
103struct hostdata {
104	struct hostent host;
105	char data[sizeof(struct hostent_data)];
106};
107
108struct netdata {
109	struct netent net;
110	char data[sizeof(struct netent_data)];
111};
112
113struct protodata {
114	struct protoent proto;
115	char data[sizeof(struct protoent_data)];
116};
117
118struct hostdata *__hostdata_init(void);
119struct hostent *__hostent_init(void);
120struct hostent_data *__hostent_data_init(void);
121struct netdata *__netdata_init(void);
122struct netent_data *__netent_data_init(void);
123struct protodata *__protodata_init(void);
124struct protoent_data *__protoent_data_init(void);
125int __copy_hostent(struct hostent *, struct hostent *, char *, size_t);
126int __copy_netent(struct netent *, struct netent *, char *, size_t);
127int __copy_protoent(struct protoent *, struct protoent *, char *, size_t);
128
129void __endprotoent_p(struct protoent_data *);
130int __getprotoent_p(struct protoent *, struct protoent_data *);
131void __setprotoent_p(int, struct protoent_data *);
132void _endhostdnsent(void);
133void _endhosthtent(struct hostent_data *);
134void _endnetdnsent(void);
135void _endnethtent(struct netent_data *);
136void _map_v4v6_address(const char *, char *);
137void _map_v4v6_hostent(struct hostent *, char **, char *);
138void _sethostdnsent(int);
139void _sethosthtent(int, struct hostent_data *);
140void _setnetdnsent(int);
141void _setnethtent(int, struct netent_data *);
142
143struct hostent *__dns_getanswer(const char *, int, const char *, int);
144int _dns_gethostbyaddr(void *, void *, va_list);
145int _dns_gethostbyname(void *, void *, va_list);
146int _dns_getnetbyaddr(void *, void *, va_list);
147int _dns_getnetbyname(void *, void *, va_list);
148int _ht_gethostbyaddr(void *, void *, va_list);
149int _ht_gethostbyname(void *, void *, va_list);
150int _ht_getnetbyaddr(void *, void *, va_list);
151int _ht_getnetbyname(void *, void *, va_list);
152int _nis_gethostbyaddr(void *, void *, va_list);
153int _nis_gethostbyname(void *, void *, va_list);
154int _nis_getnetbyaddr(void *, void *, va_list);
155int _nis_getnetbyname(void *, void *, va_list);
156#ifdef NS_CACHING
157int __proto_id_func(char *, size_t *, va_list, void *);
158int __proto_marshal_func(char *, size_t *, void *, va_list, void *);
159int __proto_unmarshal_func(char *, size_t, void *, va_list, void *);
160#endif
161
162#endif /* _NETDB_PRIVATE_H_ */
163