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/*
* Copyright (c) 1985 Regents of the University of California.
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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.
*/
#if defined(LIBC_SCCS) && !defined(lint)
/*static char *sccsid = "from: @(#)res_internal.h 6.22 (Berkeley) 3/19/91";*/
static char *rcsid = "$Id$";
#endif /* LIBC_SCCS and not lint */
#ifndef _RES_INTERNAL_H
#define _RES_INTERNAL_H
#include <pthread.h>
#include <netdb.h>
#include <resolv.h>
#define HOST_BUFSIZE 4096
#undef ALIGN
#define ALIGN(p, t) ((char *)(((((long)(p) - 1) / sizeof(t)) + 1) * sizeof(t)))
#define SP(p, t, n) (ALIGN(p, t) + (n) * sizeof(t))
struct res_data {
char *buf;
struct __res_state state;
int errval;
int sock;
};
#if PACKETSZ > 1024
#define MAXPACKET PACKETSZ
#else
#define MAXPACKET 1024
#endif
typedef union {
HEADER hdr;
unsigned char buf[MAXPACKET];
} querybuf;
typedef union {
long al;
char ac;
} align;
extern pthread_mutex_t host_iterate_lock;
__BEGIN_DECLS
struct hostent *_res_parse_answer(querybuf *answer, int anslen, int iquery,
struct hostent *result, char *buf,
int buflen, int *errval);
void _res_set_error(int val);
struct res_data *_res_init(void);
__END_DECLS
#endif
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