Adding upstream version 1:9.18.19.upstream/1%9.18.19upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

2 files changed, 354 insertions, 0 deletions

diff --git a/lib/dns/rdata/ch_3/a_1.c b/lib/dns/rdata/ch_3/a_1.c
new file mode 100644
index 0000000..a3303a8
--- /dev/null
+++ b/lib/dns/rdata/ch_3/a_1.c
@@ -0,0 +1,326 @@
+/*
+ * 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.
+ */
+
+/* by Bjorn.Victor@it.uu.se, 2005-05-07 */
+/* Based on generic/soa_6.c and generic/mx_15.c */
+
+#ifndef RDATA_CH_3_A_1_C
+#define RDATA_CH_3_A_1_C
+
+#include <isc/net.h>
+
+#define RRTYPE_A_ATTRIBUTES (0)
+
+static isc_result_t
+fromtext_ch_a(ARGS_FROMTEXT) {
+	isc_token_t token;
+	dns_name_t name;
+	isc_buffer_t buffer;
+
+	REQUIRE(type == dns_rdatatype_a);
+	REQUIRE(rdclass == dns_rdataclass_ch); /* 3 */
+
+	UNUSED(type);
+	UNUSED(callbacks);
+
+	RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string,
+				      false));
+
+	/* get domain name */
+	dns_name_init(&name, NULL);
+	buffer_fromregion(&buffer, &token.value.as_region);
+	if (origin == NULL) {
+		origin = dns_rootname;
+	}
+	RETTOK(dns_name_fromtext(&name, &buffer, origin, options, target));
+	if ((options & DNS_RDATA_CHECKNAMES) != 0 &&
+	    (options & DNS_RDATA_CHECKREVERSE) != 0)
+	{
+		bool ok;
+		ok = dns_name_ishostname(&name, false);
+		if (!ok && (options & DNS_RDATA_CHECKNAMESFAIL) != 0) {
+			RETTOK(DNS_R_BADNAME);
+		}
+		if (!ok && callbacks != NULL) {
+			warn_badname(&name, lexer, callbacks);
+		}
+	}
+
+	/* 16-bit octal address */
+	RETERR(isc_lex_getoctaltoken(lexer, &token, false));
+	if (token.value.as_ulong > 0xffffU) {
+		RETTOK(ISC_R_RANGE);
+	}
+	return (uint16_tobuffer(token.value.as_ulong, target));
+}
+
+static isc_result_t
+totext_ch_a(ARGS_TOTEXT) {
+	isc_region_t region;
+	dns_name_t name;
+	dns_name_t prefix;
+	bool sub;
+	char buf[sizeof("0177777")];
+	uint16_t addr;
+
+	REQUIRE(rdata->type == dns_rdatatype_a);
+	REQUIRE(rdata->rdclass == dns_rdataclass_ch); /* 3 */
+	REQUIRE(rdata->length != 0);
+
+	dns_name_init(&name, NULL);
+	dns_name_init(&prefix, NULL);
+
+	dns_rdata_toregion(rdata, &region);
+	dns_name_fromregion(&name, &region);
+	isc_region_consume(&region, name_length(&name));
+	addr = uint16_fromregion(&region);
+
+	sub = name_prefix(&name, tctx->origin, &prefix);
+	RETERR(dns_name_totext(&prefix, sub, target));
+
+	snprintf(buf, sizeof(buf), "%o", addr); /* note octal */
+	RETERR(str_totext(" ", target));
+	return (str_totext(buf, target));
+}
+
+static isc_result_t
+fromwire_ch_a(ARGS_FROMWIRE) {
+	isc_region_t sregion;
+	isc_region_t tregion;
+	dns_name_t name;
+
+	REQUIRE(type == dns_rdatatype_a);
+	REQUIRE(rdclass == dns_rdataclass_ch);
+
+	UNUSED(type);
+	UNUSED(rdclass);
+
+	dns_decompress_setmethods(dctx, DNS_COMPRESS_GLOBAL14);
+
+	dns_name_init(&name, NULL);
+
+	RETERR(dns_name_fromwire(&name, source, dctx, options, target));
+
+	isc_buffer_activeregion(source, &sregion);
+	isc_buffer_availableregion(target, &tregion);
+	if (sregion.length < 2) {
+		return (ISC_R_UNEXPECTEDEND);
+	}
+	if (tregion.length < 2) {
+		return (ISC_R_NOSPACE);
+	}
+
+	memmove(tregion.base, sregion.base, 2);
+	isc_buffer_forward(source, 2);
+	isc_buffer_add(target, 2);
+
+	return (ISC_R_SUCCESS);
+}
+
+static isc_result_t
+towire_ch_a(ARGS_TOWIRE) {
+	dns_name_t name;
+	dns_offsets_t offsets;
+	isc_region_t sregion;
+	isc_region_t tregion;
+
+	REQUIRE(rdata->type == dns_rdatatype_a);
+	REQUIRE(rdata->rdclass == dns_rdataclass_ch);
+	REQUIRE(rdata->length != 0);
+
+	dns_compress_setmethods(cctx, DNS_COMPRESS_GLOBAL14);
+
+	dns_name_init(&name, offsets);
+
+	dns_rdata_toregion(rdata, &sregion);
+
+	dns_name_fromregion(&name, &sregion);
+	isc_region_consume(&sregion, name_length(&name));
+	RETERR(dns_name_towire(&name, cctx, target));
+
+	isc_buffer_availableregion(target, &tregion);
+	if (tregion.length < 2) {
+		return (ISC_R_NOSPACE);
+	}
+
+	memmove(tregion.base, sregion.base, 2);
+	isc_buffer_add(target, 2);
+	return (ISC_R_SUCCESS);
+}
+
+static int
+compare_ch_a(ARGS_COMPARE) {
+	dns_name_t name1;
+	dns_name_t name2;
+	isc_region_t region1;
+	isc_region_t region2;
+	int order;
+
+	REQUIRE(rdata1->type == rdata2->type);
+	REQUIRE(rdata1->rdclass == rdata2->rdclass);
+	REQUIRE(rdata1->type == dns_rdatatype_a);
+	REQUIRE(rdata1->rdclass == dns_rdataclass_ch);
+	REQUIRE(rdata1->length != 0);
+	REQUIRE(rdata2->length != 0);
+
+	dns_name_init(&name1, NULL);
+	dns_name_init(&name2, NULL);
+
+	dns_rdata_toregion(rdata1, &region1);
+	dns_rdata_toregion(rdata2, &region2);
+
+	dns_name_fromregion(&name1, &region1);
+	dns_name_fromregion(&name2, &region2);
+	isc_region_consume(&region1, name_length(&name1));
+	isc_region_consume(&region2, name_length(&name2));
+
+	order = dns_name_rdatacompare(&name1, &name2);
+	if (order != 0) {
+		return (order);
+	}
+
+	order = memcmp(region1.base, region2.base, 2);
+	if (order != 0) {
+		order = (order < 0) ? -1 : 1;
+	}
+	return (order);
+}
+
+static isc_result_t
+fromstruct_ch_a(ARGS_FROMSTRUCT) {
+	dns_rdata_ch_a_t *a = source;
+	isc_region_t region;
+
+	REQUIRE(type == dns_rdatatype_a);
+	REQUIRE(a != NULL);
+	REQUIRE(a->common.rdtype == type);
+	REQUIRE(a->common.rdclass == rdclass);
+
+	UNUSED(type);
+	UNUSED(rdclass);
+
+	dns_name_toregion(&a->ch_addr_dom, &region);
+	RETERR(isc_buffer_copyregion(target, &region));
+
+	return (uint16_tobuffer(ntohs(a->ch_addr), target));
+}
+
+static isc_result_t
+tostruct_ch_a(ARGS_TOSTRUCT) {
+	dns_rdata_ch_a_t *a = target;
+	isc_region_t region;
+	dns_name_t name;
+
+	REQUIRE(rdata->type == dns_rdatatype_a);
+	REQUIRE(rdata->rdclass == dns_rdataclass_ch);
+	REQUIRE(rdata->length != 0);
+
+	a->common.rdclass = rdata->rdclass;
+	a->common.rdtype = rdata->type;
+	ISC_LINK_INIT(&a->common, link);
+
+	dns_rdata_toregion(rdata, &region);
+
+	dns_name_init(&name, NULL);
+	dns_name_fromregion(&name, &region);
+	isc_region_consume(&region, name_length(&name));
+
+	dns_name_init(&a->ch_addr_dom, NULL);
+	name_duporclone(&name, mctx, &a->ch_addr_dom);
+	a->ch_addr = htons(uint16_fromregion(&region));
+	a->mctx = mctx;
+	return (ISC_R_SUCCESS);
+}
+
+static void
+freestruct_ch_a(ARGS_FREESTRUCT) {
+	dns_rdata_ch_a_t *a = source;
+
+	REQUIRE(a != NULL);
+	REQUIRE(a->common.rdtype == dns_rdatatype_a);
+
+	if (a->mctx == NULL) {
+		return;
+	}
+
+	dns_name_free(&a->ch_addr_dom, a->mctx);
+	a->mctx = NULL;
+}
+
+static isc_result_t
+additionaldata_ch_a(ARGS_ADDLDATA) {
+	REQUIRE(rdata->type == dns_rdatatype_a);
+	REQUIRE(rdata->rdclass == dns_rdataclass_ch);
+
+	UNUSED(rdata);
+	UNUSED(owner);
+	UNUSED(add);
+	UNUSED(arg);
+
+	return (ISC_R_SUCCESS);
+}
+
+static isc_result_t
+digest_ch_a(ARGS_DIGEST) {
+	isc_region_t r;
+	dns_name_t name;
+
+	REQUIRE(rdata->type == dns_rdatatype_a);
+	REQUIRE(rdata->rdclass == dns_rdataclass_ch);
+
+	dns_rdata_toregion(rdata, &r);
+	dns_name_init(&name, NULL);
+	dns_name_fromregion(&name, &r);
+	isc_region_consume(&r, name_length(&name));
+	RETERR(dns_name_digest(&name, digest, arg));
+	return ((digest)(arg, &r));
+}
+
+static bool
+checkowner_ch_a(ARGS_CHECKOWNER) {
+	REQUIRE(type == dns_rdatatype_a);
+	REQUIRE(rdclass == dns_rdataclass_ch);
+
+	UNUSED(type);
+
+	return (dns_name_ishostname(name, wildcard));
+}
+
+static bool
+checknames_ch_a(ARGS_CHECKNAMES) {
+	isc_region_t region;
+	dns_name_t name;
+
+	REQUIRE(rdata->type == dns_rdatatype_a);
+	REQUIRE(rdata->rdclass == dns_rdataclass_ch);
+
+	UNUSED(owner);
+
+	dns_rdata_toregion(rdata, &region);
+	dns_name_init(&name, NULL);
+	dns_name_fromregion(&name, &region);
+	if (!dns_name_ishostname(&name, false)) {
+		if (bad != NULL) {
+			dns_name_clone(&name, bad);
+		}
+		return (false);
+	}
+
+	return (true);
+}
+
+static int
+casecompare_ch_a(ARGS_COMPARE) {
+	return (compare_ch_a(rdata1, rdata2));
+}
+#endif /* RDATA_CH_3_A_1_C */
diff --git a/lib/dns/rdata/ch_3/a_1.h b/lib/dns/rdata/ch_3/a_1.h
new file mode 100644
index 0000000..4ac6169
--- /dev/null
+++ b/lib/dns/rdata/ch_3/a_1.h
@@ -0,0 +1,28 @@
+/*
+ * 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.
+ */
+
+/* by Bjorn.Victor@it.uu.se, 2005-05-07 */
+/* Based on generic/mx_15.h */
+
+#pragma once
+
+typedef uint16_t ch_addr_t;
+
+typedef struct dns_rdata_ch_a {
+	dns_rdatacommon_t common;
+	isc_mem_t *mctx;
+	dns_name_t ch_addr_dom; /* ch-addr domain for back mapping
+				 * */
+	ch_addr_t ch_addr;	/* chaos address (16 bit) network
+				 * order */
+} dns_rdata_ch_a_t;