/*-
* Copyright (C) 2005 The FreeBSD Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _NETDB_PRIVATE_H_
#define _NETDB_PRIVATE_H_
#include <stdio.h> /* XXX: for FILE */
#define NETDB_THREAD_ALLOC(name) \
static thread_key_t name##_key; \
static once_t name##_init_once = ONCE_INITIALIZER; \
static int name##_thr_keycreated = 0; \
\
static void name##_free(void *); \
\
static void \
name##_keycreate(void) \
{ \
name##_thr_keycreated = \
(thr_keycreate(&name##_key, name##_free) == 0); \
} \
\
struct name * \
__##name##_init(void) \
{ \
struct name *he; \
\
if (thr_once(&name##_init_once, name##_keycreate) != 0 || \
!name##_thr_keycreated) \
return (NULL); \
if ((he = thr_getspecific(name##_key)) != NULL) \
return (he); \
if ((he = calloc(1, sizeof(*he))) == NULL) \
return (NULL); \
if (thr_setspecific(name##_key, he) == 0) \
return (he); \
free(he); \
return (NULL); \
}
#define _MAXALIASES 35
#define _MAXLINELEN 1024
#define _MAXADDRS 35
#define _HOSTBUFSIZE (8 * 1024)
#define _NETBUFSIZE 1025
struct hostent_data {
uint32_t host_addr[4]; /* IPv4 or IPv6 */
char *h_addr_ptrs[_MAXADDRS + 1];
char *host_aliases[_MAXALIASES];
char hostbuf[_HOSTBUFSIZE];
FILE *hostf;
int stayopen;
#ifdef YP
char *yp_domain;
#endif
};
struct netent_data {
char *net_aliases[_MAXALIASES];
char netbuf[_NETBUFSIZE];
FILE *netf;
int stayopen;
#ifdef YP
char *yp_domain;
#endif
};
struct protoent_data {
FILE *fp;
char *aliases[_MAXALIASES];
int stayopen;
char line[_MAXLINELEN + 1];
};
struct hostdata {
struct hostent host;
char data[sizeof(struct hostent_data)];
};
struct netdata {
struct netent net;
char data[sizeof(struct netent_data)];
};
struct protodata {
struct protoent proto;
char data[sizeof(struct protoent_data)];
};
struct hostdata *__hostdata_init(void);
struct hostent *__hostent_init(void);
struct hostent_data *__hostent_data_init(void);
struct netdata *__netdata_init(void);
struct netent_data *__netent_data_init(void);
struct protodata *__protodata_init(void);
struct protoent_data *__protoent_data_init(void);
int __copy_hostent(struct hostent *, struct hostent *, char *, size_t);
int __copy_netent(struct netent *, struct netent *, char *, size_t);
int __copy_protoent(struct protoent *, struct protoent *, char *, size_t);
void __endprotoent_p(struct protoent_data *);
int __getprotoent_p(struct protoent *, struct protoent_data *);
void __setprotoent_p(int, struct protoent_data *);
void _endhostdnsent(void);
void _endhosthtent(struct hostent_data *);
void _endnetdnsent(void);
void _endnethtent(struct netent_data *);
struct hostent *_gethostbynisaddr(const void *, socklen_t, int);
struct hostent *_gethostbynisname(const char *, int);
void _map_v4v6_address(const char *, char *);
void _map_v4v6_hostent(struct hostent *, char **, char *);
void _sethostdnsent(int);
void _sethosthtent(int, struct hostent_data *);
void _setnetdnsent(int);
void _setnethtent(int, struct netent_data *);
#endif /* _NETDB_PRIVATE_H_ */
