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/*
* Copyright (C) Internet Systems Consortium, Inc. ("ISC")
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, you can obtain one at https://mozilla.org/MPL/2.0/.
*
* See the COPYRIGHT file distributed with this work for additional
* information regarding copyright ownership.
*/
#ifndef DNS_RDATACLASS_H
#define DNS_RDATACLASS_H 1
/*! \file dns/rdataclass.h */
#include <isc/lang.h>
#include <dns/types.h>
ISC_LANG_BEGINDECLS
isc_result_t
dns_rdataclass_fromtext(dns_rdataclass_t *classp, isc_textregion_t *source);
/*%<
* Convert the text 'source' refers to into a DNS class.
*
* Requires:
*\li 'classp' is a valid pointer.
*
*\li 'source' is a valid text region.
*
* Returns:
*\li #ISC_R_SUCCESS on success
*\li #DNS_R_UNKNOWN class is unknown
*/
isc_result_t
dns_rdataclass_totext(dns_rdataclass_t rdclass, isc_buffer_t *target);
/*%<
* Put a textual representation of class 'rdclass' into 'target'.
*
* Requires:
*\li 'rdclass' is a valid class.
*
*\li 'target' is a valid text buffer.
*
* Ensures,
* if the result is success:
*\li The used space in 'target' is updated.
*
* Returns:
*\li #ISC_R_SUCCESS on success
*\li #ISC_R_NOSPACE target buffer is too small
*/
isc_result_t
dns_rdataclass_tounknowntext(dns_rdataclass_t rdclass, isc_buffer_t *target);
/*%<
* Put textual RFC3597 CLASSXXXX representation of class 'rdclass' into
* 'target'.
*
* Requires:
*\li 'rdclass' is a valid class.
*
*\li 'target' is a valid text buffer.
*
* Ensures,
* if the result is success:
*\li The used space in 'target' is updated.
*
* Returns:
*\li #ISC_R_SUCCESS on success
*\li #ISC_R_NOSPACE target buffer is too small
*/
void
dns_rdataclass_format(dns_rdataclass_t rdclass,
char *array, unsigned int size);
/*%<
* Format a human-readable representation of the class 'rdclass'
* into the character array 'array', which is of size 'size'.
* The resulting string is guaranteed to be null-terminated.
*/
#define DNS_RDATACLASS_FORMATSIZE sizeof("CLASS65535")
/*%<
* Minimum size of array to pass to dns_rdataclass_format().
*/
ISC_LANG_ENDDECLS
#endif /* DNS_RDATACLASS_H */
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