contrib/bind-9.2.4rc7/lib/dns/rdata/in_1/wks_11.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: wks_11.c,v 1.44.2.1 2004/03/09 06:11:39 marka Exp $ */
  19
  20 /* Reviewed: Fri Mar 17 15:01:49 PST 2000 by explorer */
  21
  22 #ifndef RDATA_IN_1_WKS_11_C
  23 #define RDATA_IN_1_WKS_11_C
  24
  25 #include <limits.h>
  26 #include <stdlib.h>
  27
  28 #include <isc/net.h>
  29 #include <isc/netdb.h>
  30
  31 #define RRTYPE_WKS_ATTRIBUTES (0)
  32
  33 static inline isc_result_t
  34 fromtext_in_wks(ARGS_FROMTEXT) {
  35         isc_token_t token;
  36         isc_region_t region;
  37         struct in_addr addr;
  38         struct protoent *pe;
  39         struct servent *se;
  40         char *e;
  41         long proto;
  42         unsigned char bm[8*1024]; /* 64k bits */
  43         long port;
  44         long maxport = -1;
  45         const char *ps = NULL;
  46         unsigned int n;
  47         char service[32];
  48         int i;
  49
  50         REQUIRE(type == 11);
  51         REQUIRE(rdclass == 1);
  52
  53         UNUSED(type);
  54         UNUSED(origin);
  55         UNUSED(downcase);
  56         UNUSED(rdclass);
  57
  58         /*
  59          * IPv4 dotted quad.
  60          */
  61         RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string,
  62                                       ISC_FALSE));
  63
  64         isc_buffer_availableregion(target, &region);
  65         if (getquad(token.value.as_pointer, &addr, lexer, callbacks) != 1)
  66                 RETTOK(DNS_R_BADDOTTEDQUAD);
  67         if (region.length < 4)
  68                 return (ISC_R_NOSPACE);
  69         memcpy(region.base, &addr, 4);
  70         isc_buffer_add(target, 4);
  71
  72         /*
  73          * Protocol.
  74          */
  75         RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string,
  76                                       ISC_FALSE));
  77
  78         proto = strtol(token.value.as_pointer, &e, 10);
  79         if (*e == 0)
  80                 ;
  81         else if ((pe = getprotobyname(token.value.as_pointer)) != NULL)
  82                 proto = pe->p_proto;
  83         else
  84                 RETTOK(DNS_R_UNKNOWNPROTO);
  85         if (proto < 0 || proto > 0xff)
  86                 RETTOK(ISC_R_RANGE);
  87
  88         if (proto == IPPROTO_TCP)
  89                 ps = "tcp";
  90         else if (proto == IPPROTO_UDP)
  91                 ps = "udp";
  92
  93         RETERR(uint8_tobuffer(proto, target));
  94
  95         memset(bm, 0, sizeof bm);
  96         do {
  97                 RETERR(isc_lex_getmastertoken(lexer, &token,
  98                                               isc_tokentype_string, ISC_TRUE));
  99                 if (token.type != isc_tokentype_string)
 100                         break;
 101
 102                 /*
 103                  * Lowercase the service string as some getservbyname() are
 104                  * case sensitive and the database is usually in lowercase.
 105                  */
 106                 strncpy(service, token.value.as_pointer, sizeof(service));
 107                 service[sizeof(service)-1] = '\0';
 108                 for (i = strlen(service) - 1; i >= 0; i--)
 109                         if (isupper(service[i]&0xff))
 110                                 service[i] = tolower(service[i]);
 111
 112                 port = strtol(token.value.as_pointer, &e, 10);
 113                 if (*e == 0)
 114                         ;
 115                 else if ((se = getservbyname(service, ps)) != NULL)
 116                         port = ntohs(se->s_port);
 117                 else if ((se = getservbyname(token.value.as_pointer, ps))
 118                           != NULL)
 119                         port = ntohs(se->s_port);
 120                 else
 121                         RETTOK(DNS_R_UNKNOWNSERVICE);
 122                 if (port < 0 || port > 0xffff)
 123                         RETTOK(ISC_R_RANGE);
 124                 if (port > maxport)
 125                         maxport = port;
 126                 bm[port / 8] |= (0x80 >> (port % 8));
 127         } while (1);
 128
 129         /*
 130          * Let upper layer handle eol/eof.
 131          */
 132         isc_lex_ungettoken(lexer, &token);
 133
 134         n = (maxport + 8) / 8;
 135         return (mem_tobuffer(target, bm, n));
 136 }
 137
 138 static inline isc_result_t
 139 totext_in_wks(ARGS_TOTEXT) {
 140         isc_region_t sr;
 141         unsigned short proto;
 142         char buf[sizeof "65535"];
 143         unsigned int i, j;
 144
 145         UNUSED(tctx);
 146
 147         REQUIRE(rdata->type == 11);
 148         REQUIRE(rdata->rdclass == 1);
 149         REQUIRE(rdata->length >= 5);
 150
 151         dns_rdata_toregion(rdata, &sr);
 152         RETERR(inet_totext(AF_INET, &sr, target));
 153         isc_region_consume(&sr, 4);
 154
 155         proto = uint8_fromregion(&sr);
 156         sprintf(buf, "%u", proto);
 157         RETERR(str_totext(" ", target));
 158         RETERR(str_totext(buf, target));
 159         isc_region_consume(&sr, 1);
 160
 161         for (i = 0 ; i < sr.length ; i++) {
 162                 if (sr.base[i] != 0)
 163                         for (j = 0 ; j < 8 ; j++)
 164                                 if ((sr.base[i] & (0x80 >> j)) != 0) {
 165                                         sprintf(buf, "%u", i * 8 + j);
 166                                         RETERR(str_totext(" ", target));
 167                                         RETERR(str_totext(buf, target));
 168                                 }
 169         }
 170
 171         return (ISC_R_SUCCESS);
 172 }
 173
 174 static inline isc_result_t
 175 fromwire_in_wks(ARGS_FROMWIRE) {
 176         isc_region_t sr;
 177         isc_region_t tr;
 178
 179         REQUIRE(type == 11);
 180         REQUIRE(rdclass == 1);
 181
 182         UNUSED(type);
 183         UNUSED(dctx);
 184         UNUSED(downcase);
 185         UNUSED(rdclass);
 186
 187         isc_buffer_activeregion(source, &sr);
 188         isc_buffer_availableregion(target, &tr);
 189
 190         if (sr.length < 5)
 191                 return (ISC_R_UNEXPECTEDEND);
 192         if (sr.length > 8 * 1024 + 5)
 193                 return (DNS_R_EXTRADATA);
 194         if (tr.length < sr.length)
 195                 return (ISC_R_NOSPACE);
 196
 197         memcpy(tr.base, sr.base, sr.length);
 198         isc_buffer_add(target, sr.length);
 199         isc_buffer_forward(source, sr.length);
 200
 201         return (ISC_R_SUCCESS);
 202 }
 203
 204 static inline isc_result_t
 205 towire_in_wks(ARGS_TOWIRE) {
 206         isc_region_t sr;
 207
 208         UNUSED(cctx);
 209
 210         REQUIRE(rdata->type == 11);
 211         REQUIRE(rdata->rdclass == 1);
 212         REQUIRE(rdata->length != 0);
 213
 214         dns_rdata_toregion(rdata, &sr);
 215         return (mem_tobuffer(target, sr.base, sr.length));
 216 }
 217
 218 static inline int
 219 compare_in_wks(ARGS_COMPARE) {
 220         isc_region_t r1;
 221         isc_region_t r2;
 222
 223         REQUIRE(rdata1->type == rdata2->type);
 224         REQUIRE(rdata1->rdclass == rdata2->rdclass);
 225         REQUIRE(rdata1->type == 11);
 226         REQUIRE(rdata1->rdclass == 1);
 227         REQUIRE(rdata1->length != 0);
 228         REQUIRE(rdata2->length != 0);
 229
 230         dns_rdata_toregion(rdata1, &r1);
 231         dns_rdata_toregion(rdata2, &r2);
 232         return (compare_region(&r1, &r2));
 233 }
 234
 235 static inline isc_result_t
 236 fromstruct_in_wks(ARGS_FROMSTRUCT) {
 237         dns_rdata_in_wks_t *wks = source;
 238         isc_uint32_t a;
 239
 240         REQUIRE(type == 11);
 241         REQUIRE(rdclass == 1);
 242         REQUIRE(source != NULL);
 243         REQUIRE(wks->common.rdtype == type);
 244         REQUIRE(wks->common.rdclass == rdclass);
 245         REQUIRE(wks->map != NULL || wks->map_len == 0);
 246
 247         UNUSED(type);
 248         UNUSED(rdclass);
 249
 250         a = ntohl(wks->in_addr.s_addr);
 251         RETERR(uint32_tobuffer(a, target));
 252         RETERR(uint16_tobuffer(wks->protocol, target));
 253         return (mem_tobuffer(target, wks->map, wks->map_len));
 254 }
 255
 256 static inline isc_result_t
 257 tostruct_in_wks(ARGS_TOSTRUCT) {
 258         dns_rdata_in_wks_t *wks = target;
 259         isc_uint32_t n;
 260         isc_region_t region;
 261
 262         REQUIRE(rdata->type == 11);
 263         REQUIRE(rdata->rdclass == 1);
 264         REQUIRE(rdata->length != 0);
 265
 266         wks->common.rdclass = rdata->rdclass;
 267         wks->common.rdtype = rdata->type;
 268         ISC_LINK_INIT(&wks->common, link);
 269
 270         dns_rdata_toregion(rdata, &region);
 271         n = uint32_fromregion(&region);
 272         wks->in_addr.s_addr = htonl(n);
 273         isc_region_consume(&region, 4);
 274         wks->protocol = uint16_fromregion(&region);
 275         isc_region_consume(&region, 2);
 276         wks->map_len = region.length;
 277         wks->map = mem_maybedup(mctx, region.base, region.length);
 278         if (wks->map == NULL)
 279                 return (ISC_R_NOMEMORY);
 280         wks->mctx = mctx;
 281         return (ISC_R_SUCCESS);
 282 }
 283
 284 static inline void
 285 freestruct_in_wks(ARGS_FREESTRUCT) {
 286         dns_rdata_in_wks_t *wks = source;
 287
 288         REQUIRE(source != NULL);
 289         REQUIRE(wks->common.rdtype == 11);
 290         REQUIRE(wks->common.rdclass == 1);
 291
 292         if (wks->mctx == NULL)
 293                 return;
 294
 295         if (wks->map != NULL)
 296                 isc_mem_free(wks->mctx, wks->map);
 297         wks->mctx = NULL;
 298 }
 299
 300 static inline isc_result_t
 301 additionaldata_in_wks(ARGS_ADDLDATA) {
 302         UNUSED(rdata);
 303         UNUSED(add);
 304         UNUSED(arg);
 305
 306         REQUIRE(rdata->type == 11);
 307         REQUIRE(rdata->rdclass == 1);
 308
 309         return (ISC_R_SUCCESS);
 310 }
 311
 312 static inline isc_result_t
 313 digest_in_wks(ARGS_DIGEST) {
 314         isc_region_t r;
 315
 316         REQUIRE(rdata->type == 11);
 317         REQUIRE(rdata->rdclass == 1);
 318
 319         dns_rdata_toregion(rdata, &r);
 320
 321         return ((digest)(arg, &r));
 322 }
 323
 324 #endif  /* RDATA_IN_1_WKS_11_C */