contrib/bind-9.2.4rc7/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 1.40.2.1 2004/03/09 06:11:31 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
  34         REQUIRE(type == 14);
  35
  36         UNUSED(type);
  37         UNUSED(rdclass);
  38         UNUSED(callbacks);
  39
  40         for (i = 0; i < 2 ; i++) {
  41                 RETERR(isc_lex_getmastertoken(lexer, &token,
  42                                               isc_tokentype_string,
  43                                               ISC_FALSE));
  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,
  48                                          downcase, target));
  49         }
  50         return (ISC_R_SUCCESS);
  51 }
  52
  53 static inline isc_result_t
  54 totext_minfo(ARGS_TOTEXT) {
  55         isc_region_t region;
  56         dns_name_t rmail;
  57         dns_name_t email;
  58         dns_name_t prefix;
  59         isc_boolean_t sub;
  60
  61         REQUIRE(rdata->type == 14);
  62         REQUIRE(rdata->length != 0);
  63
  64         dns_name_init(&rmail, NULL);
  65         dns_name_init(&email, NULL);
  66         dns_name_init(&prefix, NULL);
  67
  68         dns_rdata_toregion(rdata, &region);
  69
  70         dns_name_fromregion(&rmail, &region);
  71         isc_region_consume(&region, rmail.length);
  72
  73         dns_name_fromregion(&email, &region);
  74         isc_region_consume(&region, email.length);
  75
  76         sub = name_prefix(&rmail, tctx->origin, &prefix);
  77
  78         RETERR(dns_name_totext(&prefix, sub, target));
  79
  80         RETERR(str_totext(" ", target));
  81
  82         sub = name_prefix(&email, tctx->origin, &prefix);
  83         return (dns_name_totext(&prefix, sub, target));
  84 }
  85
  86 static inline isc_result_t
  87 fromwire_minfo(ARGS_FROMWIRE) {
  88         dns_name_t rmail;
  89         dns_name_t email;
  90
  91         REQUIRE(type == 14);
  92
  93         UNUSED(type);
  94         UNUSED(rdclass);
  95
  96         dns_decompress_setmethods(dctx, DNS_COMPRESS_GLOBAL14);
  97
  98         dns_name_init(&rmail, NULL);
  99         dns_name_init(&email, NULL);
 100
 101         RETERR(dns_name_fromwire(&rmail, source, dctx, downcase, target));
 102         return (dns_name_fromwire(&email, source, dctx, downcase, target));
 103 }
 104
 105 static inline isc_result_t
 106 towire_minfo(ARGS_TOWIRE) {
 107         isc_region_t region;
 108         dns_name_t rmail;
 109         dns_name_t email;
 110         dns_offsets_t roffsets;
 111         dns_offsets_t eoffsets;
 112
 113         REQUIRE(rdata->type == 14);
 114         REQUIRE(rdata->length != 0);
 115
 116         dns_compress_setmethods(cctx, DNS_COMPRESS_GLOBAL14);
 117
 118         dns_name_init(&rmail, roffsets);
 119         dns_name_init(&email, eoffsets);
 120
 121         dns_rdata_toregion(rdata, &region);
 122
 123         dns_name_fromregion(&rmail, &region);
 124         isc_region_consume(&region, name_length(&rmail));
 125
 126         RETERR(dns_name_towire(&rmail, cctx, target));
 127
 128         dns_name_fromregion(&rmail, &region);
 129         isc_region_consume(&region, rmail.length);
 130
 131         return (dns_name_towire(&rmail, cctx, target));
 132 }
 133
 134 static inline int
 135 compare_minfo(ARGS_COMPARE) {
 136         isc_region_t region1;
 137         isc_region_t region2;
 138         dns_name_t name1;
 139         dns_name_t name2;
 140         int order;
 141
 142         REQUIRE(rdata1->type == rdata2->type);
 143         REQUIRE(rdata1->rdclass == rdata2->rdclass);
 144         REQUIRE(rdata1->type == 14);
 145         REQUIRE(rdata1->length != 0);
 146         REQUIRE(rdata2->length != 0);
 147
 148         dns_name_init(&name1, NULL);
 149         dns_name_init(&name2, NULL);
 150
 151         dns_rdata_toregion(rdata1, &region1);
 152         dns_rdata_toregion(rdata2, &region2);
 153
 154         dns_name_fromregion(&name1, &region1);
 155         dns_name_fromregion(&name2, &region2);
 156
 157         order = dns_name_rdatacompare(&name1, &name2);
 158         if (order != 0)
 159                 return (order);
 160
 161         isc_region_consume(&region1, name_length(&name1));
 162         isc_region_consume(&region2, name_length(&name2));
 163
 164         dns_name_init(&name1, NULL);
 165         dns_name_init(&name2, NULL);
 166
 167         dns_name_fromregion(&name1, &region1);
 168         dns_name_fromregion(&name2, &region2);
 169
 170         order = dns_name_rdatacompare(&name1, &name2);
 171         return (order);
 172 }
 173
 174 static inline isc_result_t
 175 fromstruct_minfo(ARGS_FROMSTRUCT) {
 176         dns_rdata_minfo_t *minfo = source;
 177         isc_region_t region;
 178
 179         REQUIRE(type == 14);
 180         REQUIRE(source != NULL);
 181         REQUIRE(minfo->common.rdtype == type);
 182         REQUIRE(minfo->common.rdclass == rdclass);
 183
 184         UNUSED(type);
 185         UNUSED(rdclass);
 186
 187         dns_name_toregion(&minfo->rmailbox, &region);
 188         RETERR(isc_buffer_copyregion(target, &region));
 189         dns_name_toregion(&minfo->emailbox, &region);
 190         return (isc_buffer_copyregion(target, &region));
 191 }
 192
 193 static inline isc_result_t
 194 tostruct_minfo(ARGS_TOSTRUCT) {
 195         dns_rdata_minfo_t *minfo = target;
 196         isc_region_t region;
 197         dns_name_t name;
 198         isc_result_t result;
 199
 200         REQUIRE(rdata->type == 14);
 201         REQUIRE(target != NULL);
 202         REQUIRE(rdata->length != 0);
 203
 204         minfo->common.rdclass = rdata->rdclass;
 205         minfo->common.rdtype = rdata->type;
 206         ISC_LINK_INIT(&minfo->common, link);
 207
 208         dns_name_init(&name, NULL);
 209         dns_rdata_toregion(rdata, &region);
 210         dns_name_fromregion(&name, &region);
 211         dns_name_init(&minfo->rmailbox, NULL);
 212         RETERR(name_duporclone(&name, mctx, &minfo->rmailbox));
 213         isc_region_consume(&region, name_length(&name));
 214
 215         dns_name_fromregion(&name, &region);
 216         dns_name_init(&minfo->emailbox, NULL);
 217         result = name_duporclone(&name, mctx, &minfo->emailbox);
 218         if (result != ISC_R_SUCCESS)
 219                 goto cleanup;
 220         minfo->mctx = mctx;
 221         return (ISC_R_SUCCESS);
 222
 223  cleanup:
 224         if (mctx != NULL)
 225                 dns_name_free(&minfo->rmailbox, mctx);
 226         return (ISC_R_NOMEMORY);
 227 }
 228
 229 static inline void
 230 freestruct_minfo(ARGS_FREESTRUCT) {
 231         dns_rdata_minfo_t *minfo = source;
 232
 233         REQUIRE(source != NULL);
 234         REQUIRE(minfo->common.rdtype == 14);
 235
 236         if (minfo->mctx == NULL)
 237                 return;
 238
 239         dns_name_free(&minfo->rmailbox, minfo->mctx);
 240         dns_name_free(&minfo->emailbox, minfo->mctx);
 241         minfo->mctx = NULL;
 242 }
 243
 244 static inline isc_result_t
 245 additionaldata_minfo(ARGS_ADDLDATA) {
 246         REQUIRE(rdata->type == 14);
 247
 248         UNUSED(rdata);
 249         UNUSED(add);
 250         UNUSED(arg);
 251
 252         return (ISC_R_SUCCESS);
 253 }
 254
 255 static inline isc_result_t
 256 digest_minfo(ARGS_DIGEST) {
 257         isc_region_t r;
 258         dns_name_t name;
 259         isc_result_t result;
 260
 261         REQUIRE(rdata->type == 14);
 262
 263         dns_rdata_toregion(rdata, &r);
 264         dns_name_init(&name, NULL);
 265         dns_name_fromregion(&name, &r);
 266         result = dns_name_digest(&name, digest, arg);
 267         if (result != ISC_R_SUCCESS)
 268                 return (result);
 269         isc_region_consume(&r, name_length(&name));
 270         dns_name_init(&name, NULL);
 271         dns_name_fromregion(&name, &r);
 272
 273         return (dns_name_digest(&name, digest, arg));
 274 }
 275
 276 #endif  /* RDATA_GENERIC_MINFO_14_C */