contrib/bind-9.2.4rc7/lib/dns/rdata/generic/rp_17.c

   1 /*
   2  * Copyright (C) 2004  Internet Systems Consortium, Inc. ("ISC")
   3  * Copyright (C) 1999-2001  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: rp_17.c,v 1.35.2.1 2004/03/09 06:11:33 marka Exp $ */
  19
  20 /* RFC 1183 */
  21
  22 #ifndef RDATA_GENERIC_RP_17_C
  23 #define RDATA_GENERIC_RP_17_C
  24
  25 #define RRTYPE_RP_ATTRIBUTES (0)
  26
  27 static inline isc_result_t
  28 fromtext_rp(ARGS_FROMTEXT) {
  29         isc_token_t token;
  30         dns_name_t name;
  31         isc_buffer_t buffer;
  32         int i;
  33
  34         REQUIRE(type == 17);
  35
  36         UNUSED(type);
  37         UNUSED(rdclass);
  38         UNUSED(callbacks);
  39
  40         origin = (origin != NULL) ? origin : dns_rootname;
  41
  42         for (i = 0; i < 2 ; i++) {
  43                 RETERR(isc_lex_getmastertoken(lexer, &token,
  44                                               isc_tokentype_string,
  45                                               ISC_FALSE));
  46                 dns_name_init(&name, NULL);
  47                 buffer_fromregion(&buffer, &token.value.as_region);
  48                 RETTOK(dns_name_fromtext(&name, &buffer, origin,
  49                                          downcase, target));
  50         }
  51         return (ISC_R_SUCCESS);
  52 }
  53
  54 static inline isc_result_t
  55 totext_rp(ARGS_TOTEXT) {
  56         isc_region_t region;
  57         dns_name_t rmail;
  58         dns_name_t email;
  59         dns_name_t prefix;
  60         isc_boolean_t sub;
  61
  62         REQUIRE(rdata->type == 17);
  63         REQUIRE(rdata->length != 0);
  64
  65         dns_name_init(&rmail, NULL);
  66         dns_name_init(&email, NULL);
  67         dns_name_init(&prefix, NULL);
  68
  69         dns_rdata_toregion(rdata, &region);
  70
  71         dns_name_fromregion(&rmail, &region);
  72         isc_region_consume(&region, rmail.length);
  73
  74         dns_name_fromregion(&email, &region);
  75         isc_region_consume(&region, email.length);
  76
  77         sub = name_prefix(&rmail, tctx->origin, &prefix);
  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_rp(ARGS_FROMWIRE) {
  88         dns_name_t rmail;
  89         dns_name_t email;
  90
  91         REQUIRE(type == 17);
  92
  93         UNUSED(type);
  94         UNUSED(rdclass);
  95
  96         dns_decompress_setmethods(dctx, DNS_COMPRESS_NONE);
  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_rp(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 == 17);
 114         REQUIRE(rdata->length != 0);
 115
 116         dns_compress_setmethods(cctx, DNS_COMPRESS_NONE);
 117         dns_name_init(&rmail, roffsets);
 118         dns_name_init(&email, eoffsets);
 119
 120         dns_rdata_toregion(rdata, &region);
 121
 122         dns_name_fromregion(&rmail, &region);
 123         isc_region_consume(&region, rmail.length);
 124
 125         RETERR(dns_name_towire(&rmail, cctx, target));
 126
 127         dns_name_fromregion(&rmail, &region);
 128         isc_region_consume(&region, rmail.length);
 129
 130         return (dns_name_towire(&rmail, cctx, target));
 131 }
 132
 133 static inline int
 134 compare_rp(ARGS_COMPARE) {
 135         isc_region_t region1;
 136         isc_region_t region2;
 137         dns_name_t name1;
 138         dns_name_t name2;
 139         int order;
 140
 141         REQUIRE(rdata1->type == rdata2->type);
 142         REQUIRE(rdata1->rdclass == rdata2->rdclass);
 143         REQUIRE(rdata1->type == 17);
 144         REQUIRE(rdata1->length != 0);
 145         REQUIRE(rdata2->length != 0);
 146
 147         dns_name_init(&name1, NULL);
 148         dns_name_init(&name2, NULL);
 149
 150         dns_rdata_toregion(rdata1, &region1);
 151         dns_rdata_toregion(rdata2, &region2);
 152
 153         dns_name_fromregion(&name1, &region1);
 154         dns_name_fromregion(&name2, &region2);
 155
 156         order = dns_name_rdatacompare(&name1, &name2);
 157         if (order != 0)
 158                 return (order);
 159
 160         isc_region_consume(&region1, name_length(&name1));
 161         isc_region_consume(&region2, name_length(&name2));
 162
 163         dns_name_init(&name1, NULL);
 164         dns_name_init(&name2, NULL);
 165
 166         dns_name_fromregion(&name1, &region1);
 167         dns_name_fromregion(&name2, &region2);
 168
 169         return (dns_name_rdatacompare(&name1, &name2));
 170 }
 171
 172 static inline isc_result_t
 173 fromstruct_rp(ARGS_FROMSTRUCT) {
 174         dns_rdata_rp_t *rp = source;
 175         isc_region_t region;
 176
 177         REQUIRE(type == 17);
 178         REQUIRE(source != NULL);
 179         REQUIRE(rp->common.rdtype == type);
 180         REQUIRE(rp->common.rdclass == rdclass);
 181
 182         UNUSED(type);
 183         UNUSED(rdclass);
 184
 185         dns_name_toregion(&rp->mail, &region);
 186         RETERR(isc_buffer_copyregion(target, &region));
 187         dns_name_toregion(&rp->text, &region);
 188         return (isc_buffer_copyregion(target, &region));
 189 }
 190
 191 static inline isc_result_t
 192 tostruct_rp(ARGS_TOSTRUCT) {
 193         isc_result_t result;
 194         isc_region_t region;
 195         dns_rdata_rp_t *rp = target;
 196         dns_name_t name;
 197
 198         REQUIRE(rdata->type == 17);
 199         REQUIRE(target != NULL);
 200         REQUIRE(rdata->length != 0);
 201
 202         rp->common.rdclass = rdata->rdclass;
 203         rp->common.rdtype = rdata->type;
 204         ISC_LINK_INIT(&rp->common, link);
 205
 206         dns_name_init(&name, NULL);
 207         dns_rdata_toregion(rdata, &region);
 208         dns_name_fromregion(&name, &region);
 209         dns_name_init(&rp->mail, NULL);
 210         RETERR(name_duporclone(&name, mctx, &rp->mail));
 211         isc_region_consume(&region, name_length(&name));
 212         dns_name_fromregion(&name, &region);
 213         dns_name_init(&rp->text, NULL);
 214         result = name_duporclone(&name, mctx, &rp->text);
 215         if (result != ISC_R_SUCCESS)
 216                 goto cleanup;
 217
 218         rp->mctx = mctx;
 219         return (ISC_R_SUCCESS);
 220
 221  cleanup:
 222         if (mctx != NULL)
 223                 dns_name_free(&rp->mail, mctx);
 224         return (ISC_R_NOMEMORY);
 225 }
 226
 227 static inline void
 228 freestruct_rp(ARGS_FREESTRUCT) {
 229         dns_rdata_rp_t *rp = source;
 230
 231         REQUIRE(source != NULL);
 232         REQUIRE(rp->common.rdtype == 17);
 233
 234         if (rp->mctx == NULL)
 235                 return;
 236
 237         dns_name_free(&rp->mail, rp->mctx);
 238         dns_name_free(&rp->text, rp->mctx);
 239         rp->mctx = NULL;
 240 }
 241
 242 static inline isc_result_t
 243 additionaldata_rp(ARGS_ADDLDATA) {
 244         REQUIRE(rdata->type == 17);
 245
 246         UNUSED(rdata);
 247         UNUSED(add);
 248         UNUSED(arg);
 249
 250         return (ISC_R_SUCCESS);
 251 }
 252
 253 static inline isc_result_t
 254 digest_rp(ARGS_DIGEST) {
 255         isc_region_t r;
 256         dns_name_t name;
 257
 258         REQUIRE(rdata->type == 17);
 259
 260         dns_rdata_toregion(rdata, &r);
 261         dns_name_init(&name, NULL);
 262
 263         dns_name_fromregion(&name, &r);
 264         RETERR(dns_name_digest(&name, digest, arg));
 265         isc_region_consume(&r, name_length(&name));
 266
 267         dns_name_init(&name, NULL);
 268         dns_name_fromregion(&name, &r);
 269
 270         return (dns_name_digest(&name, digest, arg));
 271 }
 272
 273 #endif  /* RDATA_GENERIC_RP_17_C */