contrib/bind-9.2.4rc7/lib/dns/rdata/generic/isdn_20.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: isdn_20.c,v 1.30.2.1 2004/03/09 06:11:28 marka Exp $ */
  19
  20 /* Reviewed: Wed Mar 15 16:53:11 PST 2000 by bwelling */
  21
  22 /* RFC 1183 */
  23
  24 #ifndef RDATA_GENERIC_ISDN_20_C
  25 #define RDATA_GENERIC_ISDN_20_C
  26
  27 #define RRTYPE_ISDN_ATTRIBUTES (0)
  28
  29 static inline isc_result_t
  30 fromtext_isdn(ARGS_FROMTEXT) {
  31         isc_token_t token;
  32
  33         REQUIRE(type == 20);
  34
  35         UNUSED(type);
  36         UNUSED(rdclass);
  37         UNUSED(origin);
  38         UNUSED(downcase);
  39         UNUSED(callbacks);
  40
  41         /* ISDN-address */
  42         RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_qstring,
  43                                       ISC_FALSE));
  44         RETTOK(txt_fromtext(&token.value.as_textregion, target));
  45
  46         /* sa: optional */
  47         RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_qstring,
  48                                       ISC_TRUE));
  49         if (token.type != isc_tokentype_string &&
  50             token.type != isc_tokentype_qstring) {
  51                 isc_lex_ungettoken(lexer, &token);
  52                 return (ISC_R_SUCCESS);
  53         }
  54         RETTOK(txt_fromtext(&token.value.as_textregion, target));
  55         return (ISC_R_SUCCESS);
  56 }
  57
  58 static inline isc_result_t
  59 totext_isdn(ARGS_TOTEXT) {
  60         isc_region_t region;
  61
  62         REQUIRE(rdata->type == 20);
  63         REQUIRE(rdata->length != 0);
  64
  65         UNUSED(tctx);
  66
  67         dns_rdata_toregion(rdata, &region);
  68         RETERR(txt_totext(&region, target));
  69         if (region.length == 0)
  70                 return (ISC_R_SUCCESS);
  71         RETERR(str_totext(" ", target));
  72         return (txt_totext(&region, target));
  73 }
  74
  75 static inline isc_result_t
  76 fromwire_isdn(ARGS_FROMWIRE) {
  77         REQUIRE(type == 20);
  78
  79         UNUSED(type);
  80         UNUSED(dctx);
  81         UNUSED(rdclass);
  82         UNUSED(downcase);
  83
  84         RETERR(txt_fromwire(source, target));
  85         if (buffer_empty(source))
  86                 return (ISC_R_SUCCESS);
  87         return (txt_fromwire(source, target));
  88 }
  89
  90 static inline isc_result_t
  91 towire_isdn(ARGS_TOWIRE) {
  92         UNUSED(cctx);
  93
  94         REQUIRE(rdata->type == 20);
  95         REQUIRE(rdata->length != 0);
  96
  97         return (mem_tobuffer(target, rdata->data, rdata->length));
  98 }
  99
 100 static inline int
 101 compare_isdn(ARGS_COMPARE) {
 102         isc_region_t r1;
 103         isc_region_t r2;
 104
 105         REQUIRE(rdata1->type == rdata2->type);
 106         REQUIRE(rdata1->rdclass == rdata2->rdclass);
 107         REQUIRE(rdata1->type == 20);
 108         REQUIRE(rdata1->length != 0);
 109         REQUIRE(rdata2->length != 0);
 110
 111         dns_rdata_toregion(rdata1, &r1);
 112         dns_rdata_toregion(rdata2, &r2);
 113         return (compare_region(&r1, &r2));
 114 }
 115
 116 static inline isc_result_t
 117 fromstruct_isdn(ARGS_FROMSTRUCT) {
 118         dns_rdata_isdn_t *isdn = source;
 119
 120         REQUIRE(type == 20);
 121         REQUIRE(source != NULL);
 122         REQUIRE(isdn->common.rdtype == type);
 123         REQUIRE(isdn->common.rdclass == rdclass);
 124
 125         UNUSED(type);
 126         UNUSED(rdclass);
 127
 128         RETERR(uint8_tobuffer(isdn->isdn_len, target));
 129         RETERR(mem_tobuffer(target, isdn->isdn, isdn->isdn_len));
 130         RETERR(uint8_tobuffer(isdn->subaddress_len, target));
 131         return (mem_tobuffer(target, isdn->subaddress, isdn->subaddress_len));
 132 }
 133
 134 static inline isc_result_t
 135 tostruct_isdn(ARGS_TOSTRUCT) {
 136         dns_rdata_isdn_t *isdn = target;
 137         isc_region_t r;
 138
 139         REQUIRE(rdata->type == 20);
 140         REQUIRE(target != NULL);
 141         REQUIRE(rdata->length != 0);
 142
 143         isdn->common.rdclass = rdata->rdclass;
 144         isdn->common.rdtype = rdata->type;
 145         ISC_LINK_INIT(&isdn->common, link);
 146
 147         dns_rdata_toregion(rdata, &r);
 148
 149         isdn->isdn_len = uint8_fromregion(&r);
 150         isc_region_consume(&r, 1);
 151         isdn->isdn = mem_maybedup(mctx, r.base, isdn->isdn_len);
 152         if (isdn->isdn == NULL)
 153                 return (ISC_R_NOMEMORY);
 154         isc_region_consume(&r, isdn->isdn_len);
 155
 156         isdn->subaddress_len = uint8_fromregion(&r);
 157         isc_region_consume(&r, 1);
 158         isdn->subaddress = mem_maybedup(mctx, r.base, isdn->subaddress_len);
 159         if (isdn->subaddress == NULL)
 160                 goto cleanup;
 161
 162         isdn->mctx = mctx;
 163         return (ISC_R_SUCCESS);
 164
 165  cleanup:
 166         if (mctx != NULL && isdn->isdn != NULL)
 167                 isc_mem_free(mctx, isdn->isdn);
 168         return (ISC_R_NOMEMORY);
 169 }
 170
 171 static inline void
 172 freestruct_isdn(ARGS_FREESTRUCT) {
 173         dns_rdata_isdn_t *isdn = source;
 174
 175         REQUIRE(source != NULL);
 176
 177         if (isdn->mctx == NULL)
 178                 return;
 179
 180         if (isdn->isdn != NULL)
 181                 isc_mem_free(isdn->mctx, isdn->isdn);
 182         if (isdn->subaddress != NULL)
 183                 isc_mem_free(isdn->mctx, isdn->subaddress);
 184         isdn->mctx = NULL;
 185 }
 186
 187 static inline isc_result_t
 188 additionaldata_isdn(ARGS_ADDLDATA) {
 189         REQUIRE(rdata->type == 20);
 190
 191         UNUSED(rdata);
 192         UNUSED(add);
 193         UNUSED(arg);
 194
 195         return (ISC_R_SUCCESS);
 196 }
 197
 198 static inline isc_result_t
 199 digest_isdn(ARGS_DIGEST) {
 200         isc_region_t r;
 201
 202         REQUIRE(rdata->type == 20);
 203
 204         dns_rdata_toregion(rdata, &r);
 205
 206         return ((digest)(arg, &r));
 207 }
 208
 209 #endif  /* RDATA_GENERIC_ISDN_20_C */