1/* 2 * Copyright (C) 2004-2007 Internet Systems Consortium, Inc. ("ISC") 3 * Copyright (C) 1998-2001 Internet Software Consortium. 4 * 5 * Permission to use, copy, modify, and/or distribute this software for any 6 * purpose with or without fee is hereby granted, provided that the above 7 * copyright notice and this permission notice appear in all copies. 8 * 9 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH 10 * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY 11 * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT, 12 * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM 13 * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE 14 * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR 15 * PERFORMANCE OF THIS SOFTWARE. 16 */ 17 18/* $Id: rdataclass.h,v 1.24 2007/06/19 23:47:17 tbox Exp $ */ 19 20#ifndef DNS_RDATACLASS_H 21#define DNS_RDATACLASS_H 1 22 23/*! \file dns/rdataclass.h */ 24 25#include <isc/lang.h> 26 27#include <dns/types.h> 28 29ISC_LANG_BEGINDECLS 30 31isc_result_t 32dns_rdataclass_fromtext(dns_rdataclass_t *classp, isc_textregion_t *source); 33/*%< 34 * Convert the text 'source' refers to into a DNS class. 35 * 36 * Requires: 37 *\li 'classp' is a valid pointer. 38 * 39 *\li 'source' is a valid text region. 40 * 41 * Returns: 42 *\li #ISC_R_SUCCESS on success 43 *\li #DNS_R_UNKNOWN class is unknown 44 */ 45 46isc_result_t 47dns_rdataclass_totext(dns_rdataclass_t rdclass, isc_buffer_t *target); 48/*%< 49 * Put a textual representation of class 'rdclass' into 'target'. 50 * 51 * Requires: 52 *\li 'rdclass' is a valid class. 53 * 54 *\li 'target' is a valid text buffer. 55 * 56 * Ensures, 57 * if the result is success: 58 *\li The used space in 'target' is updated. 59 * 60 * Returns: 61 *\li #ISC_R_SUCCESS on success 62 *\li #ISC_R_NOSPACE target buffer is too small 63 */ 64 65void 66dns_rdataclass_format(dns_rdataclass_t rdclass, 67 char *array, unsigned int size); 68/*%< 69 * Format a human-readable representation of the class 'rdclass' 70 * into the character array 'array', which is of size 'size'. 71 * The resulting string is guaranteed to be null-terminated. 72 */ 73 74#define DNS_RDATACLASS_FORMATSIZE sizeof("CLASS65535") 75/*%< 76 * Minimum size of array to pass to dns_rdataclass_format(). 77 */ 78 79ISC_LANG_ENDDECLS 80 81#endif /* DNS_RDATACLASS_H */ 82