external/bsd/bind/dist/lib/dns/rdata/generic/dname_39.c

   1 /*      $NetBSD: dname_39.c,v 1.4 2014/12/10 04:37:59 christos Exp $    */
   2
   3 /*
   4  * Copyright (C) 2004, 2007, 2009  Internet Systems Consortium, Inc. ("ISC")
   5  * Copyright (C) 1999-2001  Internet Software Consortium.
   6  *
   7  * Permission to use, copy, modify, and/or distribute this software for any
   8  * purpose with or without fee is hereby granted, provided that the above
   9  * copyright notice and this permission notice appear in all copies.
  10  *
  11  * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
  12  * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
  13  * AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
  14  * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
  15  * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
  16  * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
  17  * PERFORMANCE OF THIS SOFTWARE.
  18  */
  19
  20 /* Id: dname_39.c,v 1.40 2009/12/04 22:06:37 tbox Exp  */
  21
  22 /* Reviewed: Wed Mar 15 16:52:38 PST 2000 by explorer */
  23
  24 /* RFC2672 */
  25
  26 #ifndef RDATA_GENERIC_DNAME_39_C
  27 #define RDATA_GENERIC_DNAME_39_C
  28
  29 #define RRTYPE_DNAME_ATTRIBUTES (DNS_RDATATYPEATTR_SINGLETON)
  30
  31 static inline isc_result_t
  32 fromtext_dname(ARGS_FROMTEXT) {
  33         isc_token_t token;
  34         dns_name_t name;
  35         isc_buffer_t buffer;
  36
  37         REQUIRE(type == 39);
  38
  39         UNUSED(type);
  40         UNUSED(rdclass);
  41         UNUSED(callbacks);
  42
  43         RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string,
  44                                       ISC_FALSE));
  45
  46         dns_name_init(&name, NULL);
  47         buffer_fromregion(&buffer, &token.value.as_region);
  48         origin = (origin != NULL) ? origin : dns_rootname;
  49         RETTOK(dns_name_fromtext(&name, &buffer, origin, options, target));
  50         return (ISC_R_SUCCESS);
  51 }
  52
  53 static inline isc_result_t
  54 totext_dname(ARGS_TOTEXT) {
  55         isc_region_t region;
  56         dns_name_t name;
  57         dns_name_t prefix;
  58         isc_boolean_t sub;
  59
  60         REQUIRE(rdata->type == 39);
  61         REQUIRE(rdata->length != 0);
  62
  63         dns_name_init(&name, NULL);
  64         dns_name_init(&prefix, NULL);
  65
  66         dns_rdata_toregion(rdata, &region);
  67         dns_name_fromregion(&name, &region);
  68
  69         sub = name_prefix(&name, tctx->origin, &prefix);
  70
  71         return (dns_name_totext(&prefix, sub, target));
  72 }
  73
  74 static inline isc_result_t
  75 fromwire_dname(ARGS_FROMWIRE) {
  76         dns_name_t name;
  77
  78         REQUIRE(type == 39);
  79
  80         UNUSED(type);
  81         UNUSED(rdclass);
  82
  83         dns_decompress_setmethods(dctx, DNS_COMPRESS_NONE);
  84
  85         dns_name_init(&name, NULL);
  86         return(dns_name_fromwire(&name, source, dctx, options, target));
  87 }
  88
  89 static inline isc_result_t
  90 towire_dname(ARGS_TOWIRE) {
  91         dns_name_t name;
  92         dns_offsets_t offsets;
  93         isc_region_t region;
  94
  95         REQUIRE(rdata->type == 39);
  96         REQUIRE(rdata->length != 0);
  97
  98         dns_compress_setmethods(cctx, DNS_COMPRESS_NONE);
  99         dns_name_init(&name, offsets);
 100         dns_rdata_toregion(rdata, &region);
 101         dns_name_fromregion(&name, &region);
 102
 103         return (dns_name_towire(&name, cctx, target));
 104 }
 105
 106 static inline int
 107 compare_dname(ARGS_COMPARE) {
 108         dns_name_t name1;
 109         dns_name_t name2;
 110         isc_region_t region1;
 111         isc_region_t region2;
 112
 113         REQUIRE(rdata1->type == rdata2->type);
 114         REQUIRE(rdata1->rdclass == rdata2->rdclass);
 115         REQUIRE(rdata1->type == 39);
 116         REQUIRE(rdata1->length != 0);
 117         REQUIRE(rdata2->length != 0);
 118
 119         dns_name_init(&name1, NULL);
 120         dns_name_init(&name2, NULL);
 121
 122         dns_rdata_toregion(rdata1, &region1);
 123         dns_rdata_toregion(rdata2, &region2);
 124
 125         dns_name_fromregion(&name1, &region1);
 126         dns_name_fromregion(&name2, &region2);
 127
 128         return (dns_name_rdatacompare(&name1, &name2));
 129 }
 130
 131 static inline isc_result_t
 132 fromstruct_dname(ARGS_FROMSTRUCT) {
 133         dns_rdata_dname_t *dname = source;
 134         isc_region_t region;
 135
 136         REQUIRE(type == 39);
 137         REQUIRE(source != NULL);
 138         REQUIRE(dname->common.rdtype == type);
 139         REQUIRE(dname->common.rdclass == rdclass);
 140
 141         UNUSED(type);
 142         UNUSED(rdclass);
 143
 144         dns_name_toregion(&dname->dname, &region);
 145         return (isc_buffer_copyregion(target, &region));
 146 }
 147
 148 static inline isc_result_t
 149 tostruct_dname(ARGS_TOSTRUCT) {
 150         isc_region_t region;
 151         dns_rdata_dname_t *dname = target;
 152         dns_name_t name;
 153
 154         REQUIRE(rdata->type == 39);
 155         REQUIRE(target != NULL);
 156         REQUIRE(rdata->length != 0);
 157
 158         dname->common.rdclass = rdata->rdclass;
 159         dname->common.rdtype = rdata->type;
 160         ISC_LINK_INIT(&dname->common, link);
 161
 162         dns_name_init(&name, NULL);
 163         dns_rdata_toregion(rdata, &region);
 164         dns_name_fromregion(&name, &region);
 165         dns_name_init(&dname->dname, NULL);
 166         RETERR(name_duporclone(&name, mctx, &dname->dname));
 167         dname->mctx = mctx;
 168         return (ISC_R_SUCCESS);
 169 }
 170
 171 static inline void
 172 freestruct_dname(ARGS_FREESTRUCT) {
 173         dns_rdata_dname_t *dname = source;
 174
 175         REQUIRE(source != NULL);
 176         REQUIRE(dname->common.rdtype == 39);
 177
 178         if (dname->mctx == NULL)
 179                 return;
 180
 181         dns_name_free(&dname->dname, dname->mctx);
 182         dname->mctx = NULL;
 183 }
 184
 185 static inline isc_result_t
 186 additionaldata_dname(ARGS_ADDLDATA) {
 187         UNUSED(rdata);
 188         UNUSED(add);
 189         UNUSED(arg);
 190
 191         REQUIRE(rdata->type == 39);
 192
 193         return (ISC_R_SUCCESS);
 194 }
 195
 196 static inline isc_result_t
 197 digest_dname(ARGS_DIGEST) {
 198         isc_region_t r;
 199         dns_name_t name;
 200
 201         REQUIRE(rdata->type == 39);
 202
 203         dns_rdata_toregion(rdata, &r);
 204         dns_name_init(&name, NULL);
 205         dns_name_fromregion(&name, &r);
 206
 207         return (dns_name_digest(&name, digest, arg));
 208 }
 209
 210 static inline isc_boolean_t
 211 checkowner_dname(ARGS_CHECKOWNER) {
 212
 213         REQUIRE(type == 39);
 214
 215         UNUSED(name);
 216         UNUSED(type);
 217         UNUSED(rdclass);
 218         UNUSED(wildcard);
 219
 220         return (ISC_TRUE);
 221 }
 222
 223 static inline isc_boolean_t
 224 checknames_dname(ARGS_CHECKNAMES) {
 225
 226         REQUIRE(rdata->type == 39);
 227
 228         UNUSED(rdata);
 229         UNUSED(owner);
 230         UNUSED(bad);
 231
 232         return (ISC_TRUE);
 233 }
 234
 235 static inline int
 236 casecompare_dname(ARGS_COMPARE) {
 237         return (compare_dname(rdata1, rdata2));
 238 }
 239 #endif  /* RDATA_GENERIC_DNAME_39_C */