45 lines
2.2 KiB
C
45 lines
2.2 KiB
C
/* Copyright (c) 2016 Phoenix Systems
|
|
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 AUTHOR 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.*/
|
|
|
|
#ifndef _ARPA_NAMESER_H
|
|
#define _ARPA_NAMESER_H
|
|
|
|
/* Define constants based on RFC 883, RFC 1034, RFC 1035 */
|
|
#define NS_PACKETSZ 512 /* Maximum packet size */
|
|
#define NS_MAXDNAME 1025 /* Maximum domain name */
|
|
#define NS_MAXCDNAME 255 /* Maximum compressed domain name */
|
|
#define NS_MAXLABEL 63 /* Maximum length of domain label */
|
|
#define NS_HFIXEDSZ 12 /* Bytes of fixed data in header */
|
|
#define NS_QFIXEDSZ 4 /* Bytes of fixed data in query */
|
|
#define NS_RRFIXEDSZ 10 /* Bytes of fixed data in r record */
|
|
#define NS_INT32SZ 4 /* Bytes of data in a u_int32_t */
|
|
#define NS_INT16SZ 2 /* Bytes of data in a u_int16_t */
|
|
#define NS_INT8SZ 1 /* Bytes of data in a u_int8_t */
|
|
#define NS_INADDRSZ 4 /* IPv4 T_A */
|
|
#define NS_IN6ADDRSZ 16 /* IPv6 T_AAAA */
|
|
#define NS_CMPRSFLGS 0xc0 /* Flag bits indicating name compression. */
|
|
#define NS_DEFAULTPORT 53 /* For both TCP and UDP. */
|
|
|
|
#endif
|