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-rw-r--r--lib/dns/rdata/generic/txt_16.c359
1 files changed, 359 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..c4d338b
--- /dev/null
+++ b/lib/dns/rdata/generic/txt_16.c
@@ -0,0 +1,359 @@
+/*
+ * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+ *
+ * SPDX-License-Identifier: MPL-2.0
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, you can obtain one at https://mozilla.org/MPL/2.0/.
+ *
+ * See the COPYRIGHT file distributed with this work for additional
+ * information regarding copyright ownership.
+ */
+
+#ifndef RDATA_GENERIC_TXT_16_C
+#define RDATA_GENERIC_TXT_16_C
+
+#define RRTYPE_TXT_ATTRIBUTES (0)
+
+static isc_result_t
+generic_fromtext_txt(ARGS_FROMTEXT) {
+ isc_token_t token;
+ int strings;
+
+ UNUSED(type);
+ UNUSED(rdclass);
+ UNUSED(origin);
+ UNUSED(options);
+ UNUSED(callbacks);
+
+ strings = 0;
+ if ((options & DNS_RDATA_UNKNOWNESCAPE) != 0) {
+ isc_textregion_t r;
+ DE_CONST("#", r.base);
+ r.length = 1;
+ RETERR(txt_fromtext(&r, target));
+ strings++;
+ }
+ for (;;) {
+ RETERR(isc_lex_getmastertoken(lexer, &token,
+ isc_tokentype_qstring, 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 isc_result_t
+generic_totext_txt(ARGS_TOTEXT) {
+ isc_region_t region;
+
+ UNUSED(tctx);
+
+ dns_rdata_toregion(rdata, &region);
+
+ while (region.length > 0) {
+ RETERR(txt_totext(&region, true, target));
+ if (region.length > 0) {
+ RETERR(str_totext(" ", target));
+ }
+ }
+
+ return (ISC_R_SUCCESS);
+}
+
+static isc_result_t
+generic_fromwire_txt(ARGS_FROMWIRE) {
+ isc_result_t result;
+
+ 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 isc_result_t
+fromtext_txt(ARGS_FROMTEXT) {
+ REQUIRE(type == dns_rdatatype_txt);
+
+ return (generic_fromtext_txt(CALL_FROMTEXT));
+}
+
+static isc_result_t
+totext_txt(ARGS_TOTEXT) {
+ REQUIRE(rdata != NULL);
+ REQUIRE(rdata->type == dns_rdatatype_txt);
+
+ return (generic_totext_txt(CALL_TOTEXT));
+}
+
+static isc_result_t
+fromwire_txt(ARGS_FROMWIRE) {
+ REQUIRE(type == dns_rdatatype_txt);
+
+ return (generic_fromwire_txt(CALL_FROMWIRE));
+}
+
+static isc_result_t
+towire_txt(ARGS_TOWIRE) {
+ REQUIRE(rdata->type == dns_rdatatype_txt);
+
+ UNUSED(cctx);
+
+ return (mem_tobuffer(target, rdata->data, rdata->length));
+}
+
+static 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 == dns_rdatatype_txt);
+
+ dns_rdata_toregion(rdata1, &r1);
+ dns_rdata_toregion(rdata2, &r2);
+ return (isc_region_compare(&r1, &r2));
+}
+
+static isc_result_t
+generic_fromstruct_txt(ARGS_FROMSTRUCT) {
+ dns_rdata_txt_t *txt = source;
+ isc_region_t region;
+ uint8_t length;
+
+ REQUIRE(txt != 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(&region);
+ isc_region_consume(&region, 1);
+ if (region.length < length) {
+ return (ISC_R_UNEXPECTEDEND);
+ }
+ isc_region_consume(&region, length);
+ }
+
+ return (mem_tobuffer(target, txt->txt, txt->txt_len));
+}
+
+static isc_result_t
+generic_tostruct_txt(ARGS_TOSTRUCT) {
+ dns_rdata_txt_t *txt = target;
+ isc_region_t r;
+
+ REQUIRE(txt != NULL);
+ REQUIRE(txt->common.rdclass == rdata->rdclass);
+ REQUIRE(txt->common.rdtype == rdata->type);
+ REQUIRE(!ISC_LINK_LINKED(&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 void
+generic_freestruct_txt(ARGS_FREESTRUCT) {
+ dns_rdata_txt_t *txt = source;
+
+ REQUIRE(txt != NULL);
+
+ if (txt->mctx == NULL) {
+ return;
+ }
+
+ if (txt->txt != NULL) {
+ isc_mem_free(txt->mctx, txt->txt);
+ }
+ txt->mctx = NULL;
+}
+
+static isc_result_t
+fromstruct_txt(ARGS_FROMSTRUCT) {
+ REQUIRE(type == dns_rdatatype_txt);
+
+ return (generic_fromstruct_txt(CALL_FROMSTRUCT));
+}
+
+static isc_result_t
+tostruct_txt(ARGS_TOSTRUCT) {
+ dns_rdata_txt_t *txt = target;
+
+ REQUIRE(rdata->type == dns_rdatatype_txt);
+ REQUIRE(txt != NULL);
+
+ txt->common.rdclass = rdata->rdclass;
+ txt->common.rdtype = rdata->type;
+ ISC_LINK_INIT(&txt->common, link);
+
+ return (generic_tostruct_txt(CALL_TOSTRUCT));
+}
+
+static void
+freestruct_txt(ARGS_FREESTRUCT) {
+ dns_rdata_txt_t *txt = source;
+
+ REQUIRE(txt != NULL);
+ REQUIRE(txt->common.rdtype == dns_rdatatype_txt);
+
+ generic_freestruct_txt(source);
+}
+
+static isc_result_t
+additionaldata_txt(ARGS_ADDLDATA) {
+ REQUIRE(rdata->type == dns_rdatatype_txt);
+
+ UNUSED(rdata);
+ UNUSED(add);
+ UNUSED(arg);
+
+ return (ISC_R_SUCCESS);
+}
+
+static isc_result_t
+digest_txt(ARGS_DIGEST) {
+ isc_region_t r;
+
+ REQUIRE(rdata->type == dns_rdatatype_txt);
+
+ dns_rdata_toregion(rdata, &r);
+
+ return ((digest)(arg, &r));
+}
+
+static bool
+checkowner_txt(ARGS_CHECKOWNER) {
+ REQUIRE(type == dns_rdatatype_txt);
+
+ UNUSED(name);
+ UNUSED(type);
+ UNUSED(rdclass);
+ UNUSED(wildcard);
+
+ return (true);
+}
+
+static bool
+checknames_txt(ARGS_CHECKNAMES) {
+ REQUIRE(rdata->type == dns_rdatatype_txt);
+
+ UNUSED(rdata);
+ UNUSED(owner);
+ UNUSED(bad);
+
+ return (true);
+}
+
+static int
+casecompare_txt(ARGS_COMPARE) {
+ return (compare_txt(rdata1, rdata2));
+}
+
+static isc_result_t
+generic_txt_first(dns_rdata_txt_t *txt) {
+ REQUIRE(txt != NULL);
+ REQUIRE(txt->txt != NULL || txt->txt_len == 0);
+
+ if (txt->txt_len == 0) {
+ return (ISC_R_NOMORE);
+ }
+
+ txt->offset = 0;
+ return (ISC_R_SUCCESS);
+}
+
+static isc_result_t
+generic_txt_next(dns_rdata_txt_t *txt) {
+ isc_region_t r;
+ uint8_t length;
+
+ REQUIRE(txt != NULL);
+ REQUIRE(txt->txt != NULL && txt->txt_len != 0);
+
+ INSIST(txt->offset + 1 <= txt->txt_len);
+ r.base = txt->txt + txt->offset;
+ r.length = txt->txt_len - txt->offset;
+ length = uint8_fromregion(&r);
+ INSIST(txt->offset + 1 + length <= txt->txt_len);
+ txt->offset = txt->offset + 1 + length;
+ if (txt->offset == txt->txt_len) {
+ return (ISC_R_NOMORE);
+ }
+ return (ISC_R_SUCCESS);
+}
+
+static isc_result_t
+generic_txt_current(dns_rdata_txt_t *txt, dns_rdata_txt_string_t *string) {
+ isc_region_t r;
+
+ REQUIRE(txt != NULL);
+ REQUIRE(string != NULL);
+ REQUIRE(txt->txt != NULL);
+ REQUIRE(txt->offset < txt->txt_len);
+
+ INSIST(txt->offset + 1 <= txt->txt_len);
+ r.base = txt->txt + txt->offset;
+ r.length = txt->txt_len - txt->offset;
+
+ string->length = uint8_fromregion(&r);
+ isc_region_consume(&r, 1);
+ string->data = r.base;
+ INSIST(txt->offset + 1 + string->length <= txt->txt_len);
+
+ return (ISC_R_SUCCESS);
+}
+
+isc_result_t
+dns_rdata_txt_first(dns_rdata_txt_t *txt) {
+ REQUIRE(txt != NULL);
+ REQUIRE(txt->common.rdtype == dns_rdatatype_txt);
+
+ return (generic_txt_first(txt));
+}
+
+isc_result_t
+dns_rdata_txt_next(dns_rdata_txt_t *txt) {
+ REQUIRE(txt != NULL);
+ REQUIRE(txt->common.rdtype == dns_rdatatype_txt);
+
+ return (generic_txt_next(txt));
+}
+
+isc_result_t
+dns_rdata_txt_current(dns_rdata_txt_t *txt, dns_rdata_txt_string_t *string) {
+ REQUIRE(txt != NULL);
+ REQUIRE(txt->common.rdtype == dns_rdatatype_txt);
+
+ return (generic_txt_current(txt, string));
+}
+#endif /* RDATA_GENERIC_TXT_16_C */