contrib/bind9/lib/dns/rdata/generic/minfo_14.c

   1 /*
   2  * Copyright (C) 2004, 2007, 2009, 2015  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: minfo_14.c,v 1.47 2009/12/04 22:06:37 tbox Exp $ */
  19
  20 /* reviewed: Wed Mar 15 17:45:32 PST 2000 by brister */
  21
  22 #ifndef RDATA_GENERIC_MINFO_14_C
  23 #define RDATA_GENERIC_MINFO_14_C
  24
  25 #define RRTYPE_MINFO_ATTRIBUTES (0)
  26
  27 static inline isc_result_t
  28 fromtext_minfo(ARGS_FROMTEXT) {
  29         isc_token_t token;
  30         dns_name_t name;
  31         isc_buffer_t buffer;
  32         int i;
  33         isc_boolean_t ok;
  34
  35         REQUIRE(type == dns_rdatatype_minfo);
  36
  37         UNUSED(type);
  38         UNUSED(rdclass);
  39         UNUSED(callbacks);
  40
  41         if (origin == NULL)
  42                 origin = dns_rootname;
  43
  44         for (i = 0; i < 2; i++) {
  45                 RETERR(isc_lex_getmastertoken(lexer, &token,
  46                                               isc_tokentype_string,
  47                                               ISC_FALSE));
  48                 dns_name_init(&name, NULL);
  49                 buffer_fromregion(&buffer, &token.value.as_region);
  50                 RETTOK(dns_name_fromtext(&name, &buffer, origin,
  51                                          options, target));
  52                 ok = ISC_TRUE;
  53                 if ((options & DNS_RDATA_CHECKNAMES) != 0)
  54                         ok = dns_name_ismailbox(&name);
  55                 if (!ok && (options & DNS_RDATA_CHECKNAMESFAIL) != 0)
  56                         RETTOK(DNS_R_BADNAME);
  57                 if (!ok && callbacks != NULL)
  58                         warn_badname(&name, lexer, callbacks);
  59         }
  60         return (ISC_R_SUCCESS);
  61 }
  62
  63 static inline isc_result_t
  64 totext_minfo(ARGS_TOTEXT) {
  65         isc_region_t region;
  66         dns_name_t rmail;
  67         dns_name_t email;
  68         dns_name_t prefix;
  69         isc_boolean_t sub;
  70
  71         REQUIRE(rdata->type == dns_rdatatype_minfo);
  72         REQUIRE(rdata->length != 0);
  73
  74         dns_name_init(&rmail, NULL);
  75         dns_name_init(&email, NULL);
  76         dns_name_init(&prefix, NULL);
  77
  78         dns_rdata_toregion(rdata, &region);
  79
  80         dns_name_fromregion(&rmail, &region);
  81         isc_region_consume(&region, rmail.length);
  82
  83         dns_name_fromregion(&email, &region);
  84         isc_region_consume(&region, email.length);
  85
  86         sub = name_prefix(&rmail, tctx->origin, &prefix);
  87
  88         RETERR(dns_name_totext(&prefix, sub, target));
  89
  90         RETERR(str_totext(" ", target));
  91
  92         sub = name_prefix(&email, tctx->origin, &prefix);
  93         return (dns_name_totext(&prefix, sub, target));
  94 }
  95
  96 static inline isc_result_t
  97 fromwire_minfo(ARGS_FROMWIRE) {
  98         dns_name_t rmail;
  99         dns_name_t email;
 100
 101         REQUIRE(type == dns_rdatatype_minfo);
 102
 103         UNUSED(type);
 104         UNUSED(rdclass);
 105
 106         dns_decompress_setmethods(dctx, DNS_COMPRESS_GLOBAL14);
 107
 108         dns_name_init(&rmail, NULL);
 109         dns_name_init(&email, NULL);
 110
 111         RETERR(dns_name_fromwire(&rmail, source, dctx, options, target));
 112         return (dns_name_fromwire(&email, source, dctx, options, target));
 113 }
 114
 115 static inline isc_result_t
 116 towire_minfo(ARGS_TOWIRE) {
 117         isc_region_t region;
 118         dns_name_t rmail;
 119         dns_name_t email;
 120         dns_offsets_t roffsets;
 121         dns_offsets_t eoffsets;
 122
 123         REQUIRE(rdata->type == dns_rdatatype_minfo);
 124         REQUIRE(rdata->length != 0);
 125
 126         dns_compress_setmethods(cctx, DNS_COMPRESS_GLOBAL14);
 127
 128         dns_name_init(&rmail, roffsets);
 129         dns_name_init(&email, eoffsets);
 130
 131         dns_rdata_toregion(rdata, &region);
 132
 133         dns_name_fromregion(&rmail, &region);
 134         isc_region_consume(&region, name_length(&rmail));
 135
 136         RETERR(dns_name_towire(&rmail, cctx, target));
 137
 138         dns_name_fromregion(&rmail, &region);
 139         isc_region_consume(&region, rmail.length);
 140
 141         return (dns_name_towire(&rmail, cctx, target));
 142 }
 143
 144 static inline int
 145 compare_minfo(ARGS_COMPARE) {
 146         isc_region_t region1;
 147         isc_region_t region2;
 148         dns_name_t name1;
 149         dns_name_t name2;
 150         int order;
 151
 152         REQUIRE(rdata1->type == rdata2->type);
 153         REQUIRE(rdata1->rdclass == rdata2->rdclass);
 154         REQUIRE(rdata1->type == dns_rdatatype_minfo);
 155         REQUIRE(rdata1->length != 0);
 156         REQUIRE(rdata2->length != 0);
 157
 158         dns_name_init(&name1, NULL);
 159         dns_name_init(&name2, NULL);
 160
 161         dns_rdata_toregion(rdata1, &region1);
 162         dns_rdata_toregion(rdata2, &region2);
 163
 164         dns_name_fromregion(&name1, &region1);
 165         dns_name_fromregion(&name2, &region2);
 166
 167         order = dns_name_rdatacompare(&name1, &name2);
 168         if (order != 0)
 169                 return (order);
 170
 171         isc_region_consume(&region1, name_length(&name1));
 172         isc_region_consume(&region2, name_length(&name2));
 173
 174         dns_name_init(&name1, NULL);
 175         dns_name_init(&name2, NULL);
 176
 177         dns_name_fromregion(&name1, &region1);
 178         dns_name_fromregion(&name2, &region2);
 179
 180         order = dns_name_rdatacompare(&name1, &name2);
 181         return (order);
 182 }
 183
 184 static inline isc_result_t
 185 fromstruct_minfo(ARGS_FROMSTRUCT) {
 186         dns_rdata_minfo_t *minfo = source;
 187         isc_region_t region;
 188
 189         REQUIRE(type == dns_rdatatype_minfo);
 190         REQUIRE(source != NULL);
 191         REQUIRE(minfo->common.rdtype == type);
 192         REQUIRE(minfo->common.rdclass == rdclass);
 193
 194         UNUSED(type);
 195         UNUSED(rdclass);
 196
 197         dns_name_toregion(&minfo->rmailbox, &region);
 198         RETERR(isc_buffer_copyregion(target, &region));
 199         dns_name_toregion(&minfo->emailbox, &region);
 200         return (isc_buffer_copyregion(target, &region));
 201 }
 202
 203 static inline isc_result_t
 204 tostruct_minfo(ARGS_TOSTRUCT) {
 205         dns_rdata_minfo_t *minfo = target;
 206         isc_region_t region;
 207         dns_name_t name;
 208         isc_result_t result;
 209
 210         REQUIRE(rdata->type == dns_rdatatype_minfo);
 211         REQUIRE(target != NULL);
 212         REQUIRE(rdata->length != 0);
 213
 214         minfo->common.rdclass = rdata->rdclass;
 215         minfo->common.rdtype = rdata->type;
 216         ISC_LINK_INIT(&minfo->common, link);
 217
 218         dns_name_init(&name, NULL);
 219         dns_rdata_toregion(rdata, &region);
 220         dns_name_fromregion(&name, &region);
 221         dns_name_init(&minfo->rmailbox, NULL);
 222         RETERR(name_duporclone(&name, mctx, &minfo->rmailbox));
 223         isc_region_consume(&region, name_length(&name));
 224
 225         dns_name_fromregion(&name, &region);
 226         dns_name_init(&minfo->emailbox, NULL);
 227         result = name_duporclone(&name, mctx, &minfo->emailbox);
 228         if (result != ISC_R_SUCCESS)
 229                 goto cleanup;
 230         minfo->mctx = mctx;
 231         return (ISC_R_SUCCESS);
 232
 233  cleanup:
 234         if (mctx != NULL)
 235                 dns_name_free(&minfo->rmailbox, mctx);
 236         return (ISC_R_NOMEMORY);
 237 }
 238
 239 static inline void
 240 freestruct_minfo(ARGS_FREESTRUCT) {
 241         dns_rdata_minfo_t *minfo = source;
 242
 243         REQUIRE(source != NULL);
 244         REQUIRE(minfo->common.rdtype == dns_rdatatype_minfo);
 245
 246         if (minfo->mctx == NULL)
 247                 return;
 248
 249         dns_name_free(&minfo->rmailbox, minfo->mctx);
 250         dns_name_free(&minfo->emailbox, minfo->mctx);
 251         minfo->mctx = NULL;
 252 }
 253
 254 static inline isc_result_t
 255 additionaldata_minfo(ARGS_ADDLDATA) {
 256         REQUIRE(rdata->type == dns_rdatatype_minfo);
 257
 258         UNUSED(rdata);
 259         UNUSED(add);
 260         UNUSED(arg);
 261
 262         return (ISC_R_SUCCESS);
 263 }
 264
 265 static inline isc_result_t
 266 digest_minfo(ARGS_DIGEST) {
 267         isc_region_t r;
 268         dns_name_t name;
 269         isc_result_t result;
 270
 271         REQUIRE(rdata->type == dns_rdatatype_minfo);
 272
 273         dns_rdata_toregion(rdata, &r);
 274         dns_name_init(&name, NULL);
 275         dns_name_fromregion(&name, &r);
 276         result = dns_name_digest(&name, digest, arg);
 277         if (result != ISC_R_SUCCESS)
 278                 return (result);
 279         isc_region_consume(&r, name_length(&name));
 280         dns_name_init(&name, NULL);
 281         dns_name_fromregion(&name, &r);
 282
 283         return (dns_name_digest(&name, digest, arg));
 284 }
 285
 286 static inline isc_boolean_t
 287 checkowner_minfo(ARGS_CHECKOWNER) {
 288
 289         REQUIRE(type == dns_rdatatype_minfo);
 290
 291         UNUSED(name);
 292         UNUSED(type);
 293         UNUSED(rdclass);
 294         UNUSED(wildcard);
 295
 296         return (ISC_TRUE);
 297 }
 298
 299 static inline isc_boolean_t
 300 checknames_minfo(ARGS_CHECKNAMES) {
 301         isc_region_t region;
 302         dns_name_t name;
 303
 304         REQUIRE(rdata->type == dns_rdatatype_minfo);
 305
 306         UNUSED(owner);
 307
 308         dns_rdata_toregion(rdata, &region);
 309         dns_name_init(&name, NULL);
 310         dns_name_fromregion(&name, &region);
 311         if (!dns_name_ismailbox(&name)) {
 312                 if (bad != NULL)
 313                         dns_name_clone(&name, bad);
 314                 return (ISC_FALSE);
 315         }
 316         isc_region_consume(&region, name_length(&name));
 317         dns_name_fromregion(&name, &region);
 318         if (!dns_name_ismailbox(&name)) {
 319                 if (bad != NULL)
 320                         dns_name_clone(&name, bad);
 321                 return (ISC_FALSE);
 322         }
 323         return (ISC_TRUE);
 324 }
 325
 326 static inline int
 327 casecompare_minfo(ARGS_COMPARE) {
 328         return (compare_minfo(rdata1, rdata2));
 329 }
 330
 331 #endif  /* RDATA_GENERIC_MINFO_14_C */