external/bsd/bind/dist/lib/dns/rdata/generic/lp_107.c

   1 /*      $NetBSD: lp_107.c,v 1.1.1.3 2014/12/10 03:34:42 christos Exp $  */
   2
   3 /*
   4  * Copyright (C) 2013  Internet Systems Consortium, Inc. ("ISC")
   5  *
   6  * Permission to use, copy, modify, and/or distribute this software for any
   7  * purpose with or without fee is hereby granted, provided that the above
   8  * copyright notice and this permission notice appear in all copies.
   9  *
  10  * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
  11  * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
  12  * AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
  13  * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
  14  * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
  15  * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
  16  * PERFORMANCE OF THIS SOFTWARE.
  17  */
  18
  19 #ifndef RDATA_GENERIC_LP_107_C
  20 #define RDATA_GENERIC_LP_107_C
  21
  22 #include <string.h>
  23
  24 #include <isc/net.h>
  25
  26 #define RRTYPE_LP_ATTRIBUTES (0)
  27
  28 static inline isc_result_t
  29 fromtext_lp(ARGS_FROMTEXT) {
  30         isc_token_t token;
  31         dns_name_t name;
  32         isc_buffer_t buffer;
  33
  34         REQUIRE(type == 107);
  35
  36         UNUSED(type);
  37         UNUSED(rdclass);
  38         UNUSED(callbacks);
  39
  40         RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number,
  41                                       ISC_FALSE));
  42         if (token.value.as_ulong > 0xffffU)
  43                 RETTOK(ISC_R_RANGE);
  44         RETERR(uint16_tobuffer(token.value.as_ulong, target));
  45
  46         RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string,
  47                                       ISC_FALSE));
  48
  49         dns_name_init(&name, NULL);
  50         buffer_fromregion(&buffer, &token.value.as_region);
  51         origin = (origin != NULL) ? origin : dns_rootname;
  52         return (dns_name_fromtext(&name, &buffer, origin, options, target));
  53 }
  54
  55 static inline isc_result_t
  56 totext_lp(ARGS_TOTEXT) {
  57         isc_region_t region;
  58         dns_name_t name;
  59         dns_name_t prefix;
  60         isc_boolean_t sub;
  61         char buf[sizeof("64000")];
  62         unsigned short num;
  63
  64         REQUIRE(rdata->type == 107);
  65         REQUIRE(rdata->length != 0);
  66
  67         dns_name_init(&name, NULL);
  68         dns_name_init(&prefix, NULL);
  69
  70         dns_rdata_toregion(rdata, &region);
  71         num = uint16_fromregion(&region);
  72         isc_region_consume(&region, 2);
  73         sprintf(buf, "%u", num);
  74         RETERR(str_totext(buf, target));
  75
  76         RETERR(str_totext(" ", target));
  77
  78         dns_name_fromregion(&name, &region);
  79         sub = name_prefix(&name, tctx->origin, &prefix);
  80         return (dns_name_totext(&prefix, sub, target));
  81 }
  82
  83 static inline isc_result_t
  84 fromwire_lp(ARGS_FROMWIRE) {
  85         dns_name_t name;
  86         isc_region_t sregion;
  87
  88         REQUIRE(type == 107);
  89
  90         UNUSED(type);
  91         UNUSED(rdclass);
  92
  93         dns_decompress_setmethods(dctx, DNS_COMPRESS_GLOBAL14);
  94
  95         dns_name_init(&name, NULL);
  96
  97         isc_buffer_activeregion(source, &sregion);
  98         if (sregion.length < 2)
  99                 return (ISC_R_UNEXPECTEDEND);
 100         RETERR(mem_tobuffer(target, sregion.base, 2));
 101         isc_buffer_forward(source, 2);
 102         return (dns_name_fromwire(&name, source, dctx, options, target));
 103 }
 104
 105 static inline isc_result_t
 106 towire_lp(ARGS_TOWIRE) {
 107
 108         REQUIRE(rdata->type == 107);
 109         REQUIRE(rdata->length != 0);
 110
 111         UNUSED(cctx);
 112
 113         return (mem_tobuffer(target, rdata->data, rdata->length));
 114 }
 115
 116 static inline int
 117 compare_lp(ARGS_COMPARE) {
 118         isc_region_t region1;
 119         isc_region_t region2;
 120
 121         REQUIRE(rdata1->type == rdata2->type);
 122         REQUIRE(rdata1->rdclass == rdata2->rdclass);
 123         REQUIRE(rdata1->type == 107);
 124         REQUIRE(rdata1->length != 0);
 125         REQUIRE(rdata2->length != 0);
 126
 127         dns_rdata_toregion(rdata1, &region1);
 128         dns_rdata_toregion(rdata2, &region2);
 129
 130         return (isc_region_compare(&region1, &region2));
 131 }
 132
 133 static inline isc_result_t
 134 fromstruct_lp(ARGS_FROMSTRUCT) {
 135         dns_rdata_lp_t *lp = source;
 136         isc_region_t region;
 137
 138         REQUIRE(type == 107);
 139         REQUIRE(source != NULL);
 140         REQUIRE(lp->common.rdtype == type);
 141         REQUIRE(lp->common.rdclass == rdclass);
 142
 143         UNUSED(type);
 144         UNUSED(rdclass);
 145
 146         RETERR(uint16_tobuffer(lp->pref, target));
 147         dns_name_toregion(&lp->lp, &region);
 148         return (isc_buffer_copyregion(target, &region));
 149 }
 150
 151 static inline isc_result_t
 152 tostruct_lp(ARGS_TOSTRUCT) {
 153         isc_region_t region;
 154         dns_rdata_lp_t *lp = target;
 155         dns_name_t name;
 156
 157         REQUIRE(rdata->type == 107);
 158         REQUIRE(target != NULL);
 159         REQUIRE(rdata->length != 0);
 160
 161         lp->common.rdclass = rdata->rdclass;
 162         lp->common.rdtype = rdata->type;
 163         ISC_LINK_INIT(&lp->common, link);
 164
 165         dns_name_init(&name, NULL);
 166         dns_rdata_toregion(rdata, &region);
 167         lp->pref = uint16_fromregion(&region);
 168         isc_region_consume(&region, 2);
 169         dns_name_fromregion(&name, &region);
 170         dns_name_init(&lp->lp, NULL);
 171         RETERR(name_duporclone(&name, mctx, &lp->lp));
 172         lp->mctx = mctx;
 173         return (ISC_R_SUCCESS);
 174 }
 175
 176 static inline void
 177 freestruct_lp(ARGS_FREESTRUCT) {
 178         dns_rdata_lp_t *lp = source;
 179
 180         REQUIRE(source != NULL);
 181         REQUIRE(lp->common.rdtype == 107);
 182
 183         if (lp->mctx == NULL)
 184                 return;
 185
 186         dns_name_free(&lp->lp, lp->mctx);
 187         lp->mctx = NULL;
 188 }
 189
 190 static inline isc_result_t
 191 additionaldata_lp(ARGS_ADDLDATA) {
 192         dns_name_t name;
 193         dns_offsets_t offsets;
 194         isc_region_t region;
 195         isc_result_t result;
 196
 197         REQUIRE(rdata->type == 107);
 198
 199         dns_name_init(&name, offsets);
 200         dns_rdata_toregion(rdata, &region);
 201         isc_region_consume(&region, 2);
 202         dns_name_fromregion(&name, &region);
 203
 204         result = (add)(arg, &name, dns_rdatatype_l32);
 205         if (result != ISC_R_SUCCESS)
 206                 return (result);
 207         return ((add)(arg, &name, dns_rdatatype_l64));
 208 }
 209
 210 static inline isc_result_t
 211 digest_lp(ARGS_DIGEST) {
 212         isc_region_t region;
 213
 214         REQUIRE(rdata->type == 107);
 215
 216         dns_rdata_toregion(rdata, &region);
 217         return ((digest)(arg, &region));
 218 }
 219
 220 static inline isc_boolean_t
 221 checkowner_lp(ARGS_CHECKOWNER) {
 222
 223         REQUIRE(type == 107);
 224
 225         UNUSED(type);
 226         UNUSED(rdclass);
 227         UNUSED(name);
 228         UNUSED(wildcard);
 229
 230         return (ISC_TRUE);
 231 }
 232
 233 static inline isc_boolean_t
 234 checknames_lp(ARGS_CHECKNAMES) {
 235
 236         REQUIRE(rdata->type == 107);
 237
 238         UNUSED(bad);
 239         UNUSED(owner);
 240
 241         return (ISC_TRUE);
 242 }
 243
 244 static inline int
 245 casecompare_lp(ARGS_COMPARE) {
 246         dns_name_t name1;
 247         dns_name_t name2;
 248         isc_region_t region1;
 249         isc_region_t region2;
 250         int order;
 251
 252         REQUIRE(rdata1->type == rdata2->type);
 253         REQUIRE(rdata1->rdclass == rdata2->rdclass);
 254         REQUIRE(rdata1->type == 107);
 255         REQUIRE(rdata1->length != 0);
 256         REQUIRE(rdata2->length != 0);
 257
 258         order = memcmp(rdata1->data, rdata2->data, 2);
 259         if (order != 0)
 260                 return (order < 0 ? -1 : 1);
 261
 262         dns_name_init(&name1, NULL);
 263         dns_name_init(&name2, NULL);
 264
 265         dns_rdata_toregion(rdata1, &region1);
 266         dns_rdata_toregion(rdata2, &region2);
 267
 268         isc_region_consume(&region1, 2);
 269         isc_region_consume(&region2, 2);
 270
 271         dns_name_fromregion(&name1, &region1);
 272         dns_name_fromregion(&name2, &region2);
 273
 274         return (dns_name_rdatacompare(&name1, &name2));
 275 }
 276
 277 #endif  /* RDATA_GENERIC_LP_107_C */