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This commit is contained in:
Bob Halley 1999-03-08 18:53:44 +00:00
parent ddbbc5a1c9
commit 4c154a9f38
1 changed files with 86 additions and 0 deletions
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lib/dns/include/dns/fixedname.h Normal file
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/*
* Copyright (C) 1999 Internet Software Consortium.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
* ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
* CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
* ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
* SOFTWARE.
*/
#ifndef DNS_FIXEDNAME_H
#define DNS_FIXEDNAME_H 1
/*****
***** Module Info
*****/
/*
* Fixed-size Names
*
* dns_fixedname_t is a convenience type containing a name, an offsets table,
* and a dedicated buffer big enough for the longest possible name.
*
* MP:
* The caller must ensure any required synchronization.
*
* Reliability:
* No anticipated impact.
*
* Resources:
* Per dns_fixedname_t:
* sizeof(dns_name_t) + sizeof(dns_offsets_t) +
* sizeof(isc_buffer_t) + 255 bytes + structure padding
*
* Security:
* No anticipated impact.
*
* Standards:
* None.
*/
/*****
***** Imports
*****/
#include <isc/buffer.h>
#include <isc/lang.h>
#include <dns/types.h>
#include <dns/name.h>
#include <dns/result.h>
ISC_LANG_BEGINDECLS
/*****
***** Types
*****/
typedef struct dns_fixedname {
dns_name_t name;
dns_offsets_t offsets;
isc_buffer_t buffer;
unsigned char data[255];
} dns_fixedname_t;
#define dns_fixedname_init(fn) \
do { \
dns_name_init(&((fn)->name), (fn)->offsets); \
isc_buffer_init(&((fn)->buffer), (fn)->data, 255, \
ISC_BUFFERTYPE_BINARY); \
dns_name_setbuffer(&((fn)->name), &((fn)->buffer)); \
} while (0)
#define dns_fixedname_invalidate(fn) \
dns_name_invalidate(&((fn)->name))
ISC_LANG_ENDDECLS
#endif /* DNS_FIXEDNAME_H */