external/bsd/bind/dist/lib/dns/rdata/generic/md_3.c

   1 /*      $NetBSD: md_3.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) 1998-2001  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: md_3.c,v 1.49 2009/12/04 22:06:37 tbox Exp  */
  21
  22 /* Reviewed: Wed Mar 15 17:48:20 PST 2000 by bwelling */
  23
  24 #ifndef RDATA_GENERIC_MD_3_C
  25 #define RDATA_GENERIC_MD_3_C
  26
  27 #define RRTYPE_MD_ATTRIBUTES (0)
  28
  29 static inline isc_result_t
  30 fromtext_md(ARGS_FROMTEXT) {
  31         isc_token_t token;
  32         dns_name_t name;
  33         isc_buffer_t buffer;
  34
  35         REQUIRE(type == 3);
  36
  37         UNUSED(type);
  38         UNUSED(rdclass);
  39         UNUSED(callbacks);
  40
  41         RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string,
  42                                       ISC_FALSE));
  43
  44         dns_name_init(&name, NULL);
  45         buffer_fromregion(&buffer, &token.value.as_region);
  46         origin = (origin != NULL) ? origin : dns_rootname;
  47         RETTOK(dns_name_fromtext(&name, &buffer, origin, options, target));
  48         return (ISC_R_SUCCESS);
  49 }
  50
  51 static inline isc_result_t
  52 totext_md(ARGS_TOTEXT) {
  53         isc_region_t region;
  54         dns_name_t name;
  55         dns_name_t prefix;
  56         isc_boolean_t sub;
  57
  58         REQUIRE(rdata->type == 3);
  59         REQUIRE(rdata->length != 0);
  60
  61         dns_name_init(&name, NULL);
  62         dns_name_init(&prefix, NULL);
  63
  64         dns_rdata_toregion(rdata, &region);
  65         dns_name_fromregion(&name, &region);
  66
  67         sub = name_prefix(&name, tctx->origin, &prefix);
  68
  69         return (dns_name_totext(&prefix, sub, target));
  70 }
  71
  72 static inline isc_result_t
  73 fromwire_md(ARGS_FROMWIRE) {
  74         dns_name_t name;
  75
  76         REQUIRE(type == 3);
  77
  78         UNUSED(type);
  79         UNUSED(rdclass);
  80
  81         dns_decompress_setmethods(dctx, DNS_COMPRESS_GLOBAL14);
  82
  83         dns_name_init(&name, NULL);
  84         return (dns_name_fromwire(&name, source, dctx, options, target));
  85 }
  86
  87 static inline isc_result_t
  88 towire_md(ARGS_TOWIRE) {
  89         dns_name_t name;
  90         dns_offsets_t offsets;
  91         isc_region_t region;
  92
  93         REQUIRE(rdata->type == 3);
  94         REQUIRE(rdata->length != 0);
  95
  96         dns_compress_setmethods(cctx, DNS_COMPRESS_GLOBAL14);
  97
  98         dns_name_init(&name, offsets);
  99         dns_rdata_toregion(rdata, &region);
 100         dns_name_fromregion(&name, &region);
 101
 102         return (dns_name_towire(&name, cctx, target));
 103 }
 104
 105 static inline int
 106 compare_md(ARGS_COMPARE) {
 107         dns_name_t name1;
 108         dns_name_t name2;
 109         isc_region_t region1;
 110         isc_region_t region2;
 111
 112         REQUIRE(rdata1->type == rdata2->type);
 113         REQUIRE(rdata1->rdclass == rdata2->rdclass);
 114         REQUIRE(rdata1->type == 3);
 115         REQUIRE(rdata1->length != 0);
 116         REQUIRE(rdata2->length != 0);
 117
 118         dns_name_init(&name1, NULL);
 119         dns_name_init(&name2, NULL);
 120
 121         dns_rdata_toregion(rdata1, &region1);
 122         dns_rdata_toregion(rdata2, &region2);
 123
 124         dns_name_fromregion(&name1, &region1);
 125         dns_name_fromregion(&name2, &region2);
 126
 127         return (dns_name_rdatacompare(&name1, &name2));
 128 }
 129
 130 static inline isc_result_t
 131 fromstruct_md(ARGS_FROMSTRUCT) {
 132         dns_rdata_md_t *md = source;
 133         isc_region_t region;
 134
 135         REQUIRE(type == 3);
 136         REQUIRE(source != NULL);
 137         REQUIRE(md->common.rdtype == type);
 138         REQUIRE(md->common.rdclass == rdclass);
 139
 140         UNUSED(type);
 141         UNUSED(rdclass);
 142
 143         dns_name_toregion(&md->md, &region);
 144         return (isc_buffer_copyregion(target, &region));
 145 }
 146
 147 static inline isc_result_t
 148 tostruct_md(ARGS_TOSTRUCT) {
 149         dns_rdata_md_t *md = target;
 150         isc_region_t r;
 151         dns_name_t name;
 152
 153         REQUIRE(rdata->type == 3);
 154         REQUIRE(target != NULL);
 155         REQUIRE(rdata->length != 0);
 156
 157         md->common.rdclass = rdata->rdclass;
 158         md->common.rdtype = rdata->type;
 159         ISC_LINK_INIT(&md->common, link);
 160
 161         dns_name_init(&name, NULL);
 162         dns_rdata_toregion(rdata, &r);
 163         dns_name_fromregion(&name, &r);
 164         dns_name_init(&md->md, NULL);
 165         RETERR(name_duporclone(&name, mctx, &md->md));
 166         md->mctx = mctx;
 167         return (ISC_R_SUCCESS);
 168 }
 169
 170 static inline void
 171 freestruct_md(ARGS_FREESTRUCT) {
 172         dns_rdata_md_t *md = source;
 173
 174         REQUIRE(source != NULL);
 175         REQUIRE(md->common.rdtype == 3);
 176
 177         if (md->mctx == NULL)
 178                 return;
 179
 180         dns_name_free(&md->md, md->mctx);
 181         md->mctx = NULL;
 182 }
 183
 184 static inline isc_result_t
 185 additionaldata_md(ARGS_ADDLDATA) {
 186         dns_name_t name;
 187         dns_offsets_t offsets;
 188         isc_region_t region;
 189
 190         REQUIRE(rdata->type == 3);
 191
 192         dns_name_init(&name, offsets);
 193         dns_rdata_toregion(rdata, &region);
 194         dns_name_fromregion(&name, &region);
 195
 196         return ((add)(arg, &name, dns_rdatatype_a));
 197 }
 198
 199 static inline isc_result_t
 200 digest_md(ARGS_DIGEST) {
 201         isc_region_t r;
 202         dns_name_t name;
 203
 204         REQUIRE(rdata->type == 3);
 205
 206         dns_rdata_toregion(rdata, &r);
 207         dns_name_init(&name, NULL);
 208         dns_name_fromregion(&name, &r);
 209
 210         return (dns_name_digest(&name, digest, arg));
 211 }
 212
 213 static inline isc_boolean_t
 214 checkowner_md(ARGS_CHECKOWNER) {
 215
 216         REQUIRE(type == 3);
 217
 218         UNUSED(name);
 219         UNUSED(type);
 220         UNUSED(rdclass);
 221         UNUSED(wildcard);
 222
 223         return (ISC_TRUE);
 224 }
 225
 226 static inline isc_boolean_t
 227 checknames_md(ARGS_CHECKNAMES) {
 228
 229         REQUIRE(rdata->type == 3);
 230
 231         UNUSED(rdata);
 232         UNUSED(owner);
 233         UNUSED(bad);
 234
 235         return (ISC_TRUE);
 236 }
 237
 238 static inline int
 239 casecompare_md(ARGS_COMPARE) {
 240         return (compare_md(rdata1, rdata2));
 241 }
 242
 243 #endif  /* RDATA_GENERIC_MD_3_C */