contrib/bind-9.2.4rc7/lib/dns/rdata/generic/null_10.c

   1 /*
   2  * Copyright (C) 2004  Internet Systems Consortium, Inc. ("ISC")
   3  * Copyright (C) 1998-2001  Internet Software Consortium.
   4  *
   5  * Permission to use, copy, modify, and 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: null_10.c,v 1.35.2.2 2004/03/09 06:11:32 marka Exp $ */
  19
  20 /* Reviewed: Thu Mar 16 13:57:50 PST 2000 by explorer */
  21
  22 #ifndef RDATA_GENERIC_NULL_10_C
  23 #define RDATA_GENERIC_NULL_10_C
  24
  25 #define RRTYPE_NULL_ATTRIBUTES (0)
  26
  27 static inline isc_result_t
  28 fromtext_null(ARGS_FROMTEXT) {
  29         REQUIRE(type == 10);
  30
  31         UNUSED(rdclass);
  32         UNUSED(type);
  33         UNUSED(lexer);
  34         UNUSED(origin);
  35         UNUSED(downcase);
  36         UNUSED(target);
  37         UNUSED(callbacks);
  38
  39         return (DNS_R_SYNTAX);
  40 }
  41
  42 static inline isc_result_t
  43 totext_null(ARGS_TOTEXT) {
  44         REQUIRE(rdata->type == 10);
  45
  46         UNUSED(rdata);
  47         UNUSED(tctx);
  48         UNUSED(target);
  49
  50         return (DNS_R_SYNTAX);
  51 }
  52
  53 static inline isc_result_t
  54 fromwire_null(ARGS_FROMWIRE) {
  55         isc_region_t sr;
  56
  57         REQUIRE(type == 10);
  58
  59         UNUSED(type);
  60         UNUSED(rdclass);
  61         UNUSED(dctx);
  62         UNUSED(downcase);
  63
  64         isc_buffer_activeregion(source, &sr);
  65         isc_buffer_forward(source, sr.length);
  66         return (mem_tobuffer(target, sr.base, sr.length));
  67 }
  68
  69 static inline isc_result_t
  70 towire_null(ARGS_TOWIRE) {
  71         REQUIRE(rdata->type == 10);
  72
  73         UNUSED(cctx);
  74
  75         return (mem_tobuffer(target, rdata->data, rdata->length));
  76 }
  77
  78 static inline int
  79 compare_null(ARGS_COMPARE) {
  80         isc_region_t r1;
  81         isc_region_t r2;
  82
  83         REQUIRE(rdata1->type == rdata2->type);
  84         REQUIRE(rdata1->rdclass == rdata2->rdclass);
  85         REQUIRE(rdata1->type == 10);
  86
  87         dns_rdata_toregion(rdata1, &r1);
  88         dns_rdata_toregion(rdata2, &r2);
  89         return (compare_region(&r1, &r2));
  90 }
  91
  92 static inline isc_result_t
  93 fromstruct_null(ARGS_FROMSTRUCT) {
  94         dns_rdata_null_t *null = source;
  95
  96         REQUIRE(type == 10);
  97         REQUIRE(source != NULL);
  98         REQUIRE(null->common.rdtype == type);
  99         REQUIRE(null->common.rdclass == rdclass);
 100         REQUIRE(null->data != NULL || null->length == 0);
 101
 102         UNUSED(type);
 103         UNUSED(rdclass);
 104
 105         return (mem_tobuffer(target, null->data, null->length));
 106 }
 107
 108 static inline isc_result_t
 109 tostruct_null(ARGS_TOSTRUCT) {
 110         dns_rdata_null_t *null = target;
 111         isc_region_t r;
 112
 113         REQUIRE(rdata->type == 10);
 114         REQUIRE(target != NULL);
 115
 116         null->common.rdclass = rdata->rdclass;
 117         null->common.rdtype = rdata->type;
 118         ISC_LINK_INIT(&null->common, link);
 119
 120         dns_rdata_toregion(rdata, &r);
 121         null->length = r.length;
 122         null->data = mem_maybedup(mctx, r.base, r.length);
 123         if (null->data == NULL)
 124                 return (ISC_R_NOMEMORY);
 125
 126         null->mctx = mctx;
 127         return (ISC_R_SUCCESS);
 128 }
 129
 130 static inline void
 131 freestruct_null(ARGS_FREESTRUCT) {
 132         dns_rdata_null_t *null = source;
 133
 134         REQUIRE(source != NULL);
 135         REQUIRE(null->common.rdtype == 10);
 136
 137         if (null->mctx == NULL)
 138                 return;
 139
 140         if (null->data != NULL)
 141                 isc_mem_free(null->mctx, null->data);
 142         null->mctx = NULL;
 143 }
 144
 145 static inline isc_result_t
 146 additionaldata_null(ARGS_ADDLDATA) {
 147         UNUSED(rdata);
 148         UNUSED(add);
 149         UNUSED(arg);
 150
 151         REQUIRE(rdata->type == 10);
 152
 153         return (ISC_R_SUCCESS);
 154 }
 155
 156 static inline isc_result_t
 157 digest_null(ARGS_DIGEST) {
 158         isc_region_t r;
 159
 160         REQUIRE(rdata->type == 10);
 161
 162         dns_rdata_toregion(rdata, &r);
 163
 164         return ((digest)(arg, &r));
 165 }
 166
 167 #endif  /* RDATA_GENERIC_NULL_10_C */