external/bsd/bind/dist/lib/dns/rdata/generic/l32_105.c

   1 /*      $NetBSD: l32_105.c,v 1.1.1.4 2014/12/10 03:34:42 christos Exp $ */
   2
   3 /*
   4  * Copyright (C) 2013, 2014  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_L32_105_C
  20 #define RDATA_GENERIC_L32_105_C
  21
  22 #include <string.h>
  23
  24 #include <isc/net.h>
  25
  26 #define RRTYPE_L32_ATTRIBUTES (0)
  27
  28 static inline isc_result_t
  29 fromtext_l32(ARGS_FROMTEXT) {
  30         isc_token_t token;
  31         struct in_addr addr;
  32         isc_region_t region;
  33
  34         REQUIRE(type == 105);
  35
  36         UNUSED(type);
  37         UNUSED(rdclass);
  38         UNUSED(origin);
  39         UNUSED(options);
  40         UNUSED(callbacks);
  41
  42         RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number,
  43                                       ISC_FALSE));
  44         if (token.value.as_ulong > 0xffffU)
  45                 RETTOK(ISC_R_RANGE);
  46         RETERR(uint16_tobuffer(token.value.as_ulong, target));
  47
  48         RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string,
  49                                       ISC_FALSE));
  50
  51         if (getquad(DNS_AS_STR(token), &addr, lexer, callbacks) != 1)
  52                 RETTOK(DNS_R_BADDOTTEDQUAD);
  53         isc_buffer_availableregion(target, &region);
  54         if (region.length < 4)
  55                 return (ISC_R_NOSPACE);
  56         memmove(region.base, &addr, 4);
  57         isc_buffer_add(target, 4);
  58         return (ISC_R_SUCCESS);
  59 }
  60
  61 static inline isc_result_t
  62 totext_l32(ARGS_TOTEXT) {
  63         isc_region_t region;
  64         char buf[sizeof("65000")];
  65         unsigned short num;
  66
  67         REQUIRE(rdata->type == 105);
  68         REQUIRE(rdata->length == 6);
  69
  70         UNUSED(tctx);
  71
  72         dns_rdata_toregion(rdata, &region);
  73         num = uint16_fromregion(&region);
  74         isc_region_consume(&region, 2);
  75         sprintf(buf, "%u", num);
  76         RETERR(str_totext(buf, target));
  77
  78         RETERR(str_totext(" ", target));
  79
  80         return (inet_totext(AF_INET, &region, target));
  81 }
  82
  83 static inline isc_result_t
  84 fromwire_l32(ARGS_FROMWIRE) {
  85         isc_region_t sregion;
  86
  87         REQUIRE(type == 105);
  88
  89         UNUSED(type);
  90         UNUSED(options);
  91         UNUSED(rdclass);
  92         UNUSED(dctx);
  93
  94         isc_buffer_activeregion(source, &sregion);
  95         if (sregion.length != 6)
  96                 return (DNS_R_FORMERR);
  97         isc_buffer_forward(source, sregion.length);
  98         return (mem_tobuffer(target, sregion.base, sregion.length));
  99 }
 100
 101 static inline isc_result_t
 102 towire_l32(ARGS_TOWIRE) {
 103
 104         REQUIRE(rdata->type == 105);
 105         REQUIRE(rdata->length == 6);
 106
 107         UNUSED(cctx);
 108
 109         return (mem_tobuffer(target, rdata->data, rdata->length));
 110 }
 111
 112 static inline int
 113 compare_l32(ARGS_COMPARE) {
 114         isc_region_t region1;
 115         isc_region_t region2;
 116
 117         REQUIRE(rdata1->type == rdata2->type);
 118         REQUIRE(rdata1->rdclass == rdata2->rdclass);
 119         REQUIRE(rdata1->type == 105);
 120         REQUIRE(rdata1->length == 6);
 121         REQUIRE(rdata2->length == 6);
 122
 123         dns_rdata_toregion(rdata1, &region1);
 124         dns_rdata_toregion(rdata2, &region2);
 125         return (isc_region_compare(&region1, &region2));
 126 }
 127
 128 static inline isc_result_t
 129 fromstruct_l32(ARGS_FROMSTRUCT) {
 130         dns_rdata_l32_t *l32 = source;
 131         isc_uint32_t n;
 132
 133         REQUIRE(type == 105);
 134         REQUIRE(source != NULL);
 135         REQUIRE(l32->common.rdtype == type);
 136         REQUIRE(l32->common.rdclass == rdclass);
 137
 138         UNUSED(type);
 139         UNUSED(rdclass);
 140
 141         RETERR(uint16_tobuffer(l32->pref, target));
 142         n = ntohl(l32->l32.s_addr);
 143         return (uint32_tobuffer(n, target));
 144 }
 145
 146 static inline isc_result_t
 147 tostruct_l32(ARGS_TOSTRUCT) {
 148         isc_region_t region;
 149         dns_rdata_l32_t *l32 = target;
 150         isc_uint32_t n;
 151
 152         REQUIRE(rdata->type == 105);
 153         REQUIRE(target != NULL);
 154         REQUIRE(rdata->length == 6);
 155
 156         UNUSED(mctx);
 157
 158         l32->common.rdclass = rdata->rdclass;
 159         l32->common.rdtype = rdata->type;
 160         ISC_LINK_INIT(&l32->common, link);
 161
 162         dns_rdata_toregion(rdata, &region);
 163         l32->pref = uint16_fromregion(&region);
 164         n = uint32_fromregion(&region);
 165         l32->l32.s_addr = htonl(n);
 166         return (ISC_R_SUCCESS);
 167 }
 168
 169 static inline void
 170 freestruct_l32(ARGS_FREESTRUCT) {
 171         dns_rdata_l32_t *l32 = source;
 172
 173         REQUIRE(source != NULL);
 174         REQUIRE(l32->common.rdtype == 105);
 175
 176         return;
 177 }
 178
 179 static inline isc_result_t
 180 additionaldata_l32(ARGS_ADDLDATA) {
 181
 182         REQUIRE(rdata->type == 105);
 183         REQUIRE(rdata->length == 6);
 184
 185         UNUSED(rdata);
 186         UNUSED(add);
 187         UNUSED(arg);
 188
 189         return (ISC_R_SUCCESS);
 190 }
 191
 192 static inline isc_result_t
 193 digest_l32(ARGS_DIGEST) {
 194         isc_region_t r;
 195
 196         REQUIRE(rdata->type == 105);
 197         REQUIRE(rdata->length == 6);
 198
 199         dns_rdata_toregion(rdata, &r);
 200
 201         return ((digest)(arg, &r));
 202 }
 203
 204 static inline isc_boolean_t
 205 checkowner_l32(ARGS_CHECKOWNER) {
 206
 207         REQUIRE(type == 105);
 208
 209         UNUSED(name);
 210         UNUSED(type);
 211         UNUSED(rdclass);
 212         UNUSED(wildcard);
 213
 214         return (ISC_TRUE);
 215 }
 216
 217 static inline isc_boolean_t
 218 checknames_l32(ARGS_CHECKNAMES) {
 219
 220         REQUIRE(rdata->type == 105);
 221         REQUIRE(rdata->length == 6);
 222
 223         UNUSED(rdata);
 224         UNUSED(owner);
 225         UNUSED(bad);
 226
 227         return (ISC_TRUE);
 228 }
 229
 230 static inline int
 231 casecompare_l32(ARGS_COMPARE) {
 232         return (compare_l32(rdata1, rdata2));
 233 }
 234
 235 #endif  /* RDATA_GENERIC_L32_105_C */