diff options
Diffstat (limited to 'lib/dns/rdata/generic/txt_16.c')
| -rw-r--r-- | lib/dns/rdata/generic/txt_16.c | 238 |
1 files changed, 238 insertions, 0 deletions
diff --git a/lib/dns/rdata/generic/txt_16.c b/lib/dns/rdata/generic/txt_16.c new file mode 100644 index 0000000..fa3ffef --- /dev/null +++ b/lib/dns/rdata/generic/txt_16.c @@ -0,0 +1,238 @@ +/* + * Copyright (C) 2004 Internet Systems Consortium, Inc. ("ISC") + * Copyright (C) 1998-2002 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 ISC DISCLAIMS ALL WARRANTIES WITH + * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY + * AND FITNESS. IN NO EVENT SHALL ISC 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: txt_16.c,v 1.41 2004/03/05 05:10:18 marka Exp $ */ + +/* Reviewed: Thu Mar 16 15:40:00 PST 2000 by bwelling */ + +#ifndef RDATA_GENERIC_TXT_16_C +#define RDATA_GENERIC_TXT_16_C + +#define RRTYPE_TXT_ATTRIBUTES (0) + +static inline isc_result_t +fromtext_txt(ARGS_FROMTEXT) { + isc_token_t token; + int strings; + + REQUIRE(type == 16); + + UNUSED(type); + UNUSED(rdclass); + UNUSED(origin); + UNUSED(options); + UNUSED(callbacks); + + strings = 0; + for (;;) { + RETERR(isc_lex_getmastertoken(lexer, &token, + isc_tokentype_qstring, + ISC_TRUE)); + if (token.type != isc_tokentype_qstring && + token.type != isc_tokentype_string) + break; + RETTOK(txt_fromtext(&token.value.as_textregion, target)); + strings++; + } + /* Let upper layer handle eol/eof. */ + isc_lex_ungettoken(lexer, &token); + return (strings == 0 ? ISC_R_UNEXPECTEDEND : ISC_R_SUCCESS); +} + +static inline isc_result_t +totext_txt(ARGS_TOTEXT) { + isc_region_t region; + + UNUSED(tctx); + + REQUIRE(rdata->type == 16); + + dns_rdata_toregion(rdata, ®ion); + + while (region.length > 0) { + RETERR(txt_totext(®ion, target)); + if (region.length > 0) + RETERR(str_totext(" ", target)); + } + + return (ISC_R_SUCCESS); +} + +static inline isc_result_t +fromwire_txt(ARGS_FROMWIRE) { + isc_result_t result; + + REQUIRE(type == 16); + + UNUSED(type); + UNUSED(dctx); + UNUSED(rdclass); + UNUSED(options); + + do { + result = txt_fromwire(source, target); + if (result != ISC_R_SUCCESS) + return (result); + } while (!buffer_empty(source)); + return (ISC_R_SUCCESS); +} + +static inline isc_result_t +towire_txt(ARGS_TOWIRE) { + isc_region_t region; + + REQUIRE(rdata->type == 16); + + UNUSED(cctx); + + isc_buffer_availableregion(target, ®ion); + if (region.length < rdata->length) + return (ISC_R_NOSPACE); + + memcpy(region.base, rdata->data, rdata->length); + isc_buffer_add(target, rdata->length); + return (ISC_R_SUCCESS); +} + +static inline int +compare_txt(ARGS_COMPARE) { + isc_region_t r1; + isc_region_t r2; + + REQUIRE(rdata1->type == rdata2->type); + REQUIRE(rdata1->rdclass == rdata2->rdclass); + REQUIRE(rdata1->type == 16); + + dns_rdata_toregion(rdata1, &r1); + dns_rdata_toregion(rdata2, &r2); + return (isc_region_compare(&r1, &r2)); +} + +static inline isc_result_t +fromstruct_txt(ARGS_FROMSTRUCT) { + dns_rdata_txt_t *txt = source; + isc_region_t region; + isc_uint8_t length; + + REQUIRE(type == 16); + REQUIRE(source != NULL); + REQUIRE(txt->common.rdtype == type); + REQUIRE(txt->common.rdclass == rdclass); + REQUIRE(txt->txt != NULL && txt->txt_len != 0); + + UNUSED(type); + UNUSED(rdclass); + + region.base = txt->txt; + region.length = txt->txt_len; + while (region.length > 0) { + length = uint8_fromregion(®ion); + isc_region_consume(®ion, 1); + if (region.length <= length) + return (ISC_R_UNEXPECTEDEND); + isc_region_consume(®ion, length); + } + + return (mem_tobuffer(target, txt->txt, txt->txt_len)); +} + +static inline isc_result_t +tostruct_txt(ARGS_TOSTRUCT) { + dns_rdata_txt_t *txt = target; + isc_region_t r; + + REQUIRE(rdata->type == 16); + REQUIRE(target != NULL); + + txt->common.rdclass = rdata->rdclass; + txt->common.rdtype = rdata->type; + ISC_LINK_INIT(&txt->common, link); + + dns_rdata_toregion(rdata, &r); + txt->txt_len = r.length; + txt->txt = mem_maybedup(mctx, r.base, r.length); + if (txt->txt == NULL) + return (ISC_R_NOMEMORY); + + txt->offset = 0; + txt->mctx = mctx; + return (ISC_R_SUCCESS); +} + +static inline void +freestruct_txt(ARGS_FREESTRUCT) { + dns_rdata_txt_t *txt = source; + + REQUIRE(source != NULL); + REQUIRE(txt->common.rdtype == 16); + + if (txt->mctx == NULL) + return; + + if (txt->txt != NULL) + isc_mem_free(txt->mctx, txt->txt); + txt->mctx = NULL; +} + +static inline isc_result_t +additionaldata_txt(ARGS_ADDLDATA) { + REQUIRE(rdata->type == 16); + + UNUSED(rdata); + UNUSED(add); + UNUSED(arg); + + return (ISC_R_SUCCESS); +} + +static inline isc_result_t +digest_txt(ARGS_DIGEST) { + isc_region_t r; + + REQUIRE(rdata->type == 16); + + dns_rdata_toregion(rdata, &r); + + return ((digest)(arg, &r)); +} + +static inline isc_boolean_t +checkowner_txt(ARGS_CHECKOWNER) { + + REQUIRE(type == 16); + + UNUSED(name); + UNUSED(type); + UNUSED(rdclass); + UNUSED(wildcard); + + return (ISC_TRUE); +} + +static inline isc_boolean_t +checknames_txt(ARGS_CHECKNAMES) { + + REQUIRE(rdata->type == 16); + + UNUSED(rdata); + UNUSED(owner); + UNUSED(bad); + + return (ISC_TRUE); +} + +#endif /* RDATA_GENERIC_TXT_16_C */ |
