contrib/bind-9.3/lib/dns/rdata/generic/minfo_14.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: minfo_14.c,v 1.40.12.4 2004/03/08 09:04:41 marka 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 == 14);
  36
  37         UNUSED(type);
  38         UNUSED(rdclass);
  39         UNUSED(callbacks);
  40
  41         for (i = 0; i < 2; i++) {
  42                 RETERR(isc_lex_getmastertoken(lexer, &token,
  43                                               isc_tokentype_string,
  44                                               ISC_FALSE));
  45                 dns_name_init(&name, NULL);
  46                 buffer_fromregion(&buffer, &token.value.as_region);
  47                 origin = (origin != NULL) ? origin : dns_rootname;
  48                 RETTOK(dns_name_fromtext(&name, &buffer, origin,
  49                                          options, target));
  50                 ok = ISC_TRUE;
  51                 if ((options & DNS_RDATA_CHECKNAMES) != 0)
  52                         ok = dns_name_ismailbox(&name);
  53                 if (!ok && (options & DNS_RDATA_CHECKNAMESFAIL) != 0)
  54                         RETTOK(DNS_R_BADNAME);
  55                 if (!ok && callbacks != NULL)
  56                         warn_badname(&name, lexer, callbacks);
  57         }
  58         return (ISC_R_SUCCESS);
  59 }
  60
  61 static inline isc_result_t
  62 totext_minfo(ARGS_TOTEXT) {
  63         isc_region_t region;
  64         dns_name_t rmail;
  65         dns_name_t email;
  66         dns_name_t prefix;
  67         isc_boolean_t sub;
  68
  69         REQUIRE(rdata->type == 14);
  70         REQUIRE(rdata->length != 0);
  71
  72         dns_name_init(&rmail, NULL);
  73         dns_name_init(&email, NULL);
  74         dns_name_init(&prefix, NULL);
  75
  76         dns_rdata_toregion(rdata, &region);
  77
  78         dns_name_fromregion(&rmail, &region);
  79         isc_region_consume(&region, rmail.length);
  80
  81         dns_name_fromregion(&email, &region);
  82         isc_region_consume(&region, email.length);
  83
  84         sub = name_prefix(&rmail, tctx->origin, &prefix);
  85
  86         RETERR(dns_name_totext(&prefix, sub, target));
  87
  88         RETERR(str_totext(" ", target));
  89
  90         sub = name_prefix(&email, tctx->origin, &prefix);
  91         return (dns_name_totext(&prefix, sub, target));
  92 }
  93
  94 static inline isc_result_t
  95 fromwire_minfo(ARGS_FROMWIRE) {
  96         dns_name_t rmail;
  97         dns_name_t email;
  98
  99         REQUIRE(type == 14);
 100
 101         UNUSED(type);
 102         UNUSED(rdclass);
 103
 104         dns_decompress_setmethods(dctx, DNS_COMPRESS_GLOBAL14);
 105
 106         dns_name_init(&rmail, NULL);
 107         dns_name_init(&email, NULL);
 108
 109         RETERR(dns_name_fromwire(&rmail, source, dctx, options, target));
 110         return (dns_name_fromwire(&email, source, dctx, options, target));
 111 }
 112
 113 static inline isc_result_t
 114 towire_minfo(ARGS_TOWIRE) {
 115         isc_region_t region;
 116         dns_name_t rmail;
 117         dns_name_t email;
 118         dns_offsets_t roffsets;
 119         dns_offsets_t eoffsets;
 120
 121         REQUIRE(rdata->type == 14);
 122         REQUIRE(rdata->length != 0);
 123
 124         dns_compress_setmethods(cctx, DNS_COMPRESS_GLOBAL14);
 125
 126         dns_name_init(&rmail, roffsets);
 127         dns_name_init(&email, eoffsets);
 128
 129         dns_rdata_toregion(rdata, &region);
 130
 131         dns_name_fromregion(&rmail, &region);
 132         isc_region_consume(&region, name_length(&rmail));
 133
 134         RETERR(dns_name_towire(&rmail, cctx, target));
 135
 136         dns_name_fromregion(&rmail, &region);
 137         isc_region_consume(&region, rmail.length);
 138
 139         return (dns_name_towire(&rmail, cctx, target));
 140 }
 141
 142 static inline int
 143 compare_minfo(ARGS_COMPARE) {
 144         isc_region_t region1;
 145         isc_region_t region2;
 146         dns_name_t name1;
 147         dns_name_t name2;
 148         int order;
 149
 150         REQUIRE(rdata1->type == rdata2->type);
 151         REQUIRE(rdata1->rdclass == rdata2->rdclass);
 152         REQUIRE(rdata1->type == 14);
 153         REQUIRE(rdata1->length != 0);
 154         REQUIRE(rdata2->length != 0);
 155
 156         dns_name_init(&name1, NULL);
 157         dns_name_init(&name2, NULL);
 158
 159         dns_rdata_toregion(rdata1, &region1);
 160         dns_rdata_toregion(rdata2, &region2);
 161
 162         dns_name_fromregion(&name1, &region1);
 163         dns_name_fromregion(&name2, &region2);
 164
 165         order = dns_name_rdatacompare(&name1, &name2);
 166         if (order != 0)
 167                 return (order);
 168
 169         isc_region_consume(&region1, name_length(&name1));
 170         isc_region_consume(&region2, name_length(&name2));
 171
 172         dns_name_init(&name1, NULL);
 173         dns_name_init(&name2, NULL);
 174
 175         dns_name_fromregion(&name1, &region1);
 176         dns_name_fromregion(&name2, &region2);
 177
 178         order = dns_name_rdatacompare(&name1, &name2);
 179         return (order);
 180 }
 181
 182 static inline isc_result_t
 183 fromstruct_minfo(ARGS_FROMSTRUCT) {
 184         dns_rdata_minfo_t *minfo = source;
 185         isc_region_t region;
 186
 187         REQUIRE(type == 14);
 188         REQUIRE(source != NULL);
 189         REQUIRE(minfo->common.rdtype == type);
 190         REQUIRE(minfo->common.rdclass == rdclass);
 191
 192         UNUSED(type);
 193         UNUSED(rdclass);
 194
 195         dns_name_toregion(&minfo->rmailbox, &region);
 196         RETERR(isc_buffer_copyregion(target, &region));
 197         dns_name_toregion(&minfo->emailbox, &region);
 198         return (isc_buffer_copyregion(target, &region));
 199 }
 200
 201 static inline isc_result_t
 202 tostruct_minfo(ARGS_TOSTRUCT) {
 203         dns_rdata_minfo_t *minfo = target;
 204         isc_region_t region;
 205         dns_name_t name;
 206         isc_result_t result;
 207
 208         REQUIRE(rdata->type == 14);
 209         REQUIRE(target != NULL);
 210         REQUIRE(rdata->length != 0);
 211
 212         minfo->common.rdclass = rdata->rdclass;
 213         minfo->common.rdtype = rdata->type;
 214         ISC_LINK_INIT(&minfo->common, link);
 215
 216         dns_name_init(&name, NULL);
 217         dns_rdata_toregion(rdata, &region);
 218         dns_name_fromregion(&name, &region);
 219         dns_name_init(&minfo->rmailbox, NULL);
 220         RETERR(name_duporclone(&name, mctx, &minfo->rmailbox));
 221         isc_region_consume(&region, name_length(&name));
 222
 223         dns_name_fromregion(&name, &region);
 224         dns_name_init(&minfo->emailbox, NULL);
 225         result = name_duporclone(&name, mctx, &minfo->emailbox);
 226         if (result != ISC_R_SUCCESS)
 227                 goto cleanup;
 228         minfo->mctx = mctx;
 229         return (ISC_R_SUCCESS);
 230
 231  cleanup:
 232         if (mctx != NULL)
 233                 dns_name_free(&minfo->rmailbox, mctx);
 234         return (ISC_R_NOMEMORY);
 235 }
 236
 237 static inline void
 238 freestruct_minfo(ARGS_FREESTRUCT) {
 239         dns_rdata_minfo_t *minfo = source;
 240
 241         REQUIRE(source != NULL);
 242         REQUIRE(minfo->common.rdtype == 14);
 243
 244         if (minfo->mctx == NULL)
 245                 return;
 246
 247         dns_name_free(&minfo->rmailbox, minfo->mctx);
 248         dns_name_free(&minfo->emailbox, minfo->mctx);
 249         minfo->mctx = NULL;
 250 }
 251
 252 static inline isc_result_t
 253 additionaldata_minfo(ARGS_ADDLDATA) {
 254         REQUIRE(rdata->type == 14);
 255
 256         UNUSED(rdata);
 257         UNUSED(add);
 258         UNUSED(arg);
 259
 260         return (ISC_R_SUCCESS);
 261 }
 262
 263 static inline isc_result_t
 264 digest_minfo(ARGS_DIGEST) {
 265         isc_region_t r;
 266         dns_name_t name;
 267         isc_result_t result;
 268
 269         REQUIRE(rdata->type == 14);
 270
 271         dns_rdata_toregion(rdata, &r);
 272         dns_name_init(&name, NULL);
 273         dns_name_fromregion(&name, &r);
 274         result = dns_name_digest(&name, digest, arg);
 275         if (result != ISC_R_SUCCESS)
 276                 return (result);
 277         isc_region_consume(&r, name_length(&name));
 278         dns_name_init(&name, NULL);
 279         dns_name_fromregion(&name, &r);
 280
 281         return (dns_name_digest(&name, digest, arg));
 282 }
 283
 284 static inline isc_boolean_t
 285 checkowner_minfo(ARGS_CHECKOWNER) {
 286
 287         REQUIRE(type == 14);
 288
 289         UNUSED(name);
 290         UNUSED(type);
 291         UNUSED(rdclass);
 292         UNUSED(wildcard);
 293
 294         return (ISC_TRUE);
 295 }
 296
 297 static inline isc_boolean_t
 298 checknames_minfo(ARGS_CHECKNAMES) {
 299         isc_region_t region;
 300         dns_name_t name;
 301
 302         REQUIRE(rdata->type == 14);
 303
 304         UNUSED(owner);
 305
 306         dns_rdata_toregion(rdata, &region);
 307         dns_name_init(&name, NULL);
 308         dns_name_fromregion(&name, &region);
 309         if (!dns_name_ismailbox(&name)) {
 310                 if (bad != NULL)
 311                         dns_name_clone(&name, bad);
 312                 return (ISC_FALSE);
 313         }
 314         isc_region_consume(&region, name_length(&name));
 315         dns_name_fromregion(&name, &region);
 316         if (!dns_name_ismailbox(&name)) {
 317                 if (bad != NULL)
 318                         dns_name_clone(&name, bad);
 319                 return (ISC_FALSE);
 320         }
 321         return (ISC_TRUE);
 322 }
 323
 324 #endif  /* RDATA_GENERIC_MINFO_14_C */