1/*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (C) 2005 The FreeBSD Project. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 * 27 * $FreeBSD$ 28 */ 29 30#ifndef _NETDB_PRIVATE_H_ 31#define _NETDB_PRIVATE_H_ 32 33#include <stdio.h> /* XXX: for FILE */ 34 35#define NETDB_THREAD_ALLOC(name) \ 36static struct name name; \ 37static thread_key_t name##_key; \ 38static once_t name##_init_once = ONCE_INITIALIZER; \ 39static int name##_thr_keycreated = 0; \ 40\ 41static void name##_free(void *); \ 42\ 43static void \ 44name##_keycreate(void) \ 45{ \ 46 name##_thr_keycreated = \ 47 (thr_keycreate(&name##_key, name##_free) == 0); \ 48} \ 49\ 50struct name * \ 51__##name##_init(void) \ 52{ \ 53 struct name *he; \ 54 \ 55 if (thr_main() != 0) \ 56 return (&name); \ 57 if (thr_once(&name##_init_once, name##_keycreate) != 0 || \ 58 !name##_thr_keycreated) \ 59 return (NULL); \ 60 if ((he = thr_getspecific(name##_key)) != NULL) \ 61 return (he); \ 62 if ((he = calloc(1, sizeof(*he))) == NULL) \ 63 return (NULL); \ 64 if (thr_setspecific(name##_key, he) == 0) \ 65 return (he); \ 66 free(he); \ 67 return (NULL); \ 68} 69 70#define _MAXALIASES 35 71#define _MAXLINELEN 1024 72#define _MAXADDRS 35 73#define _HOSTBUFSIZE (8 * 1024) 74#define _NETBUFSIZE 1025 75 76struct hostent_data { 77 uint32_t host_addr[4]; /* IPv4 or IPv6 */ 78 char *h_addr_ptrs[_MAXADDRS + 1]; 79 char *host_aliases[_MAXALIASES]; 80 char hostbuf[_HOSTBUFSIZE]; 81 FILE *hostf; 82 int stayopen; 83#ifdef YP 84 char *yp_domain; 85#endif 86}; 87 88struct netent_data { 89 char *net_aliases[_MAXALIASES]; 90 char netbuf[_NETBUFSIZE]; 91 FILE *netf; 92 int stayopen; 93#ifdef YP 94 char *yp_domain; 95#endif 96}; 97 98struct protoent_data { 99 FILE *fp; 100 char *aliases[_MAXALIASES]; 101 int stayopen; 102 char line[_MAXLINELEN + 1]; 103}; 104 105struct hostdata { 106 struct hostent host; 107 char data[sizeof(struct hostent_data)]; 108}; 109 110struct netdata { 111 struct netent net; 112 char data[sizeof(struct netent_data)]; 113}; 114 115struct protodata { 116 struct protoent proto; 117 char data[sizeof(struct protoent_data)]; 118}; 119 120struct hostdata *__hostdata_init(void); 121struct hostent *__hostent_init(void); 122struct hostent_data *__hostent_data_init(void); 123struct netdata *__netdata_init(void); 124struct netent_data *__netent_data_init(void); 125struct protodata *__protodata_init(void); 126struct protoent_data *__protoent_data_init(void); 127int __copy_hostent(struct hostent *, struct hostent *, char *, size_t); 128int __copy_netent(struct netent *, struct netent *, char *, size_t); 129int __copy_protoent(struct protoent *, struct protoent *, char *, size_t); 130 131void __endprotoent_p(struct protoent_data *); 132int __getprotoent_p(struct protoent *, struct protoent_data *); 133void __setprotoent_p(int, struct protoent_data *); 134void _endhostdnsent(void); 135void _endhosthtent(struct hostent_data *); 136void _endnetdnsent(void); 137void _endnethtent(struct netent_data *); 138void _map_v4v6_address(const char *, char *); 139void _map_v4v6_hostent(struct hostent *, char **, char *); 140void _sethostdnsent(int); 141void _sethosthtent(int, struct hostent_data *); 142void _setnetdnsent(int); 143void _setnethtent(int, struct netent_data *); 144 145struct hostent *__dns_getanswer(const char *, int, const char *, int); 146int _dns_gethostbyaddr(void *, void *, va_list); 147int _dns_gethostbyname(void *, void *, va_list); 148int _dns_getnetbyaddr(void *, void *, va_list); 149int _dns_getnetbyname(void *, void *, va_list); 150int _ht_gethostbyaddr(void *, void *, va_list); 151int _ht_gethostbyname(void *, void *, va_list); 152int _ht_getnetbyaddr(void *, void *, va_list); 153int _ht_getnetbyname(void *, void *, va_list); 154int _nis_gethostbyaddr(void *, void *, va_list); 155int _nis_gethostbyname(void *, void *, va_list); 156int _nis_getnetbyaddr(void *, void *, va_list); 157int _nis_getnetbyname(void *, void *, va_list); 158#ifdef NS_CACHING 159int __proto_id_func(char *, size_t *, va_list, void *); 160int __proto_marshal_func(char *, size_t *, void *, va_list, void *); 161int __proto_unmarshal_func(char *, size_t, void *, va_list, void *); 162#endif 163 164#endif /* _NETDB_PRIVATE_H_ */ 165