diff options
Diffstat (limited to 'lib/dns/rdata/generic/afsdb_18.c')
| -rw-r--r-- | lib/dns/rdata/generic/afsdb_18.c | 241 |
1 files changed, 241 insertions, 0 deletions
diff --git a/lib/dns/rdata/generic/afsdb_18.c b/lib/dns/rdata/generic/afsdb_18.c new file mode 100644 index 00000000..e09954d0 --- /dev/null +++ b/lib/dns/rdata/generic/afsdb_18.c @@ -0,0 +1,241 @@ +/* + * Copyright (C) 1999, 2000 Internet Software Consortium. + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS + * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE + * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL + * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR + * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS + * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS + * SOFTWARE. + */ + + /* $Id: afsdb_18.c,v 1.15 2000/02/03 23:42:57 halley Exp $ */ + + /* RFC 1183 */ + +#ifndef RDATA_GENERIC_AFSDB_18_C +#define RDATA_GENERIC_AFSDB_18_C + +static inline isc_result_t +fromtext_afsdb(dns_rdataclass_t rdclass, dns_rdatatype_t type, + isc_lex_t *lexer, dns_name_t *origin, + isc_boolean_t downcase, isc_buffer_t *target) +{ + isc_token_t token; + isc_buffer_t buffer; + dns_name_t name; + + REQUIRE(type == 18); + + rdclass = rdclass; /*unused*/ + + /* subtype */ + RETERR(gettoken(lexer, &token, isc_tokentype_number, ISC_FALSE)); + RETERR(uint16_tobuffer(token.value.as_ulong, target)); + + /* hostname */ + RETERR(gettoken(lexer, &token, isc_tokentype_string, ISC_FALSE)); + dns_name_init(&name, NULL); + buffer_fromregion(&buffer, &token.value.as_region, + ISC_BUFFERTYPE_TEXT); + origin = (origin != NULL) ? origin : dns_rootname; + return (dns_name_fromtext(&name, &buffer, origin, downcase, target)); +} + +static inline isc_result_t +totext_afsdb(dns_rdata_t *rdata, dns_rdata_textctx_t *tctx, + isc_buffer_t *target) +{ + dns_name_t name; + dns_name_t prefix; + isc_region_t region; + char buf[sizeof "64000 "]; + isc_boolean_t sub; + unsigned int num; + + + REQUIRE(rdata->type == 18); + + dns_name_init(&name, NULL); + dns_name_init(&prefix, NULL); + + dns_rdata_toregion(rdata, ®ion); + num = uint16_fromregion(®ion); + isc_region_consume(®ion, 2); + sprintf(buf, "%u ", num); + RETERR(str_totext(buf, target)); + dns_name_fromregion(&name, ®ion); + sub = name_prefix(&name, tctx->origin, &prefix); + return(dns_name_totext(&prefix, sub, target)); +} + +static inline isc_result_t +fromwire_afsdb(dns_rdataclass_t rdclass, dns_rdatatype_t type, + isc_buffer_t *source, dns_decompress_t *dctx, + isc_boolean_t downcase, isc_buffer_t *target) +{ + dns_name_t name; + isc_region_t sr; + isc_region_t tr; + + REQUIRE(type == 18); + + rdclass = rdclass; /*unused*/ + + if (dns_decompress_edns(dctx) >= 1 || !dns_decompress_strict(dctx)) + dns_decompress_setmethods(dctx, DNS_COMPRESS_ALL); + else + dns_decompress_setmethods(dctx, DNS_COMPRESS_NONE); + + dns_name_init(&name, NULL); + + isc_buffer_active(source, &sr); + isc_buffer_available(target, &tr); + if (tr.length < 2) + return (DNS_R_NOSPACE); + if (sr.length < 2) + return (DNS_R_UNEXPECTEDEND); + memcpy(tr.base, sr.base, 2); + isc_buffer_forward(source, 2); + isc_buffer_add(target, 2); + return (dns_name_fromwire(&name, source, dctx, downcase, target)); +} + +static inline isc_result_t +towire_afsdb(dns_rdata_t *rdata, dns_compress_t *cctx, isc_buffer_t *target) { + isc_region_t tr; + isc_region_t sr; + dns_name_t name; + + REQUIRE(rdata->type == 18); + + if (dns_compress_getedns(cctx) >= 1) + dns_compress_setmethods(cctx, DNS_COMPRESS_ALL); + else + dns_compress_setmethods(cctx, DNS_COMPRESS_NONE); + + isc_buffer_available(target, &tr); + dns_rdata_toregion(rdata, &sr); + if (tr.length < 2) + return (DNS_R_NOSPACE); + memcpy(tr.base, sr.base, 2); + isc_region_consume(&sr, 2); + isc_buffer_add(target, 2); + + dns_name_init(&name, NULL); + dns_name_fromregion(&name, &sr); + + return (dns_name_towire(&name, cctx, target)); +} + +static inline int +compare_afsdb(dns_rdata_t *rdata1, dns_rdata_t *rdata2) { + int result; + dns_name_t name1; + dns_name_t name2; + isc_region_t region1; + isc_region_t region2; + + REQUIRE(rdata1->type == rdata2->type); + REQUIRE(rdata1->rdclass == rdata2->rdclass); + REQUIRE(rdata1->type == 18); + + result = memcmp(rdata1->data, rdata2->data, 2); + if (result != 0) + return (result < 0 ? -1 : 1); + + dns_name_init(&name1, NULL); + dns_name_init(&name2, NULL); + + dns_rdata_toregion(rdata1, ®ion1); + dns_rdata_toregion(rdata2, ®ion2); + + isc_region_consume(®ion1, 2); + isc_region_consume(®ion2, 2); + + dns_name_fromregion(&name1, ®ion1); + dns_name_fromregion(&name2, ®ion2); + + return (dns_name_rdatacompare(&name1, &name2)); +} + +static inline isc_result_t +fromstruct_afsdb(dns_rdataclass_t rdclass, dns_rdatatype_t type, void *source, + isc_buffer_t *target) +{ + + REQUIRE(type == 18); + + rdclass = rdclass; /*unused*/ + + source = source; + target = target; + + return (DNS_R_NOTIMPLEMENTED); +} + +static inline isc_result_t +tostruct_afsdb(dns_rdata_t *rdata, void *target, isc_mem_t *mctx) { + + REQUIRE(rdata->type == 18); + REQUIRE(target != NULL); + + target = target; + mctx = mctx; + + return (DNS_R_NOTIMPLEMENTED); +} + +static inline void +freestruct_afsdb(void *source) { + dns_rdata_afsdb_t *afsdb = source; + + REQUIRE(source != NULL); + REQUIRE(afsdb->common.rdtype == 18); + REQUIRE(ISC_FALSE); +} + +static inline isc_result_t +additionaldata_afsdb(dns_rdata_t *rdata, dns_additionaldatafunc_t add, + void *arg) +{ + dns_name_t name; + isc_region_t region; + + REQUIRE(rdata->type == 18); + + dns_name_init(&name, NULL); + dns_rdata_toregion(rdata, ®ion); + isc_region_consume(®ion, 2); + dns_name_fromregion(&name, ®ion); + + return ((add)(arg, &name, dns_rdatatype_a)); +} + +static inline isc_result_t +digest_afsdb(dns_rdata_t *rdata, dns_digestfunc_t digest, void *arg) { + isc_region_t r1, r2; + isc_result_t result; + dns_name_t name; + + REQUIRE(rdata->type == 18); + + dns_rdata_toregion(rdata, &r1); + r2 = r1; + isc_region_consume(&r2, 2); + r1.length = 2; + result = (digest)(arg, &r1); + if (result != ISC_R_SUCCESS) + return (result); + dns_name_init(&name, NULL); + dns_name_fromregion(&name, &r2); + return (dns_name_digest(&name, digest, arg)); +} + +#endif /* RDATA_GENERIC_AFSDB_18_C */ |