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-rw-r--r--bin/check/check-tool.c693
1 files changed, 693 insertions, 0 deletions
diff --git a/bin/check/check-tool.c b/bin/check/check-tool.c
new file mode 100644
index 0000000..fd008dc
--- /dev/null
+++ b/bin/check/check-tool.c
@@ -0,0 +1,693 @@
+/*
+ * 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.
+ */
+
+/*! \file */
+
+#include <inttypes.h>
+#include <stdbool.h>
+#include <stdio.h>
+
+#include <isc/buffer.h>
+#include <isc/log.h>
+#include <isc/mem.h>
+#include <isc/net.h>
+#include <isc/netdb.h>
+#include <isc/print.h>
+#include <isc/region.h>
+#include <isc/result.h>
+#include <isc/stdio.h>
+#include <isc/string.h>
+#include <isc/symtab.h>
+#include <isc/types.h>
+#include <isc/util.h>
+
+#include <dns/db.h>
+#include <dns/dbiterator.h>
+#include <dns/fixedname.h>
+#include <dns/log.h>
+#include <dns/name.h>
+#include <dns/rdata.h>
+#include <dns/rdataclass.h>
+#include <dns/rdataset.h>
+#include <dns/rdatasetiter.h>
+#include <dns/rdatatype.h>
+#include <dns/types.h>
+#include <dns/zone.h>
+
+#include <isccfg/log.h>
+
+#include <ns/log.h>
+
+#include "check-tool.h"
+
+#ifndef CHECK_SIBLING
+#define CHECK_SIBLING 1
+#endif /* ifndef CHECK_SIBLING */
+
+#ifndef CHECK_LOCAL
+#define CHECK_LOCAL 1
+#endif /* ifndef CHECK_LOCAL */
+
+#define CHECK(r) \
+ do { \
+ result = (r); \
+ if (result != ISC_R_SUCCESS) \
+ goto cleanup; \
+ } while (0)
+
+#define ERR_IS_CNAME 1
+#define ERR_NO_ADDRESSES 2
+#define ERR_LOOKUP_FAILURE 3
+#define ERR_EXTRA_A 4
+#define ERR_EXTRA_AAAA 5
+#define ERR_MISSING_GLUE 5
+#define ERR_IS_MXCNAME 6
+#define ERR_IS_SRVCNAME 7
+
+static const char *dbtype[] = { "rbt" };
+
+int debug = 0;
+const char *journal = NULL;
+bool nomerge = true;
+#if CHECK_LOCAL
+bool docheckmx = true;
+bool dochecksrv = true;
+bool docheckns = true;
+#else /* if CHECK_LOCAL */
+bool docheckmx = false;
+bool dochecksrv = false;
+bool docheckns = false;
+#endif /* if CHECK_LOCAL */
+dns_zoneopt_t zone_options = DNS_ZONEOPT_CHECKNS | DNS_ZONEOPT_CHECKMX |
+ DNS_ZONEOPT_MANYERRORS | DNS_ZONEOPT_CHECKNAMES |
+ DNS_ZONEOPT_CHECKINTEGRITY |
+#if CHECK_SIBLING
+ DNS_ZONEOPT_CHECKSIBLING |
+#endif /* if CHECK_SIBLING */
+ DNS_ZONEOPT_CHECKWILDCARD |
+ DNS_ZONEOPT_WARNMXCNAME | DNS_ZONEOPT_WARNSRVCNAME;
+
+/*
+ * This needs to match the list in bin/named/log.c.
+ */
+static isc_logcategory_t categories[] = { { "", 0 },
+ { "unmatched", 0 },
+ { NULL, 0 } };
+
+static isc_symtab_t *symtab = NULL;
+static isc_mem_t *sym_mctx;
+
+static void
+freekey(char *key, unsigned int type, isc_symvalue_t value, void *userarg) {
+ UNUSED(type);
+ UNUSED(value);
+ isc_mem_free(userarg, key);
+}
+
+static void
+add(char *key, int value) {
+ isc_result_t result;
+ isc_symvalue_t symvalue;
+
+ if (sym_mctx == NULL) {
+ isc_mem_create(&sym_mctx);
+ }
+
+ if (symtab == NULL) {
+ result = isc_symtab_create(sym_mctx, 100, freekey, sym_mctx,
+ false, &symtab);
+ if (result != ISC_R_SUCCESS) {
+ return;
+ }
+ }
+
+ key = isc_mem_strdup(sym_mctx, key);
+
+ symvalue.as_pointer = NULL;
+ result = isc_symtab_define(symtab, key, value, symvalue,
+ isc_symexists_reject);
+ if (result != ISC_R_SUCCESS) {
+ isc_mem_free(sym_mctx, key);
+ }
+}
+
+static bool
+logged(char *key, int value) {
+ isc_result_t result;
+
+ if (symtab == NULL) {
+ return (false);
+ }
+
+ result = isc_symtab_lookup(symtab, key, value, NULL);
+ if (result == ISC_R_SUCCESS) {
+ return (true);
+ }
+ return (false);
+}
+
+static bool
+checkns(dns_zone_t *zone, const dns_name_t *name, const dns_name_t *owner,
+ dns_rdataset_t *a, dns_rdataset_t *aaaa) {
+ dns_rdataset_t *rdataset;
+ dns_rdata_t rdata = DNS_RDATA_INIT;
+ struct addrinfo hints, *ai, *cur;
+ char namebuf[DNS_NAME_FORMATSIZE + 1];
+ char ownerbuf[DNS_NAME_FORMATSIZE];
+ char addrbuf[sizeof("xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:123.123.123.123")];
+ bool answer = true;
+ bool match;
+ const char *type;
+ void *ptr = NULL;
+ int result;
+
+ REQUIRE(a == NULL || !dns_rdataset_isassociated(a) ||
+ a->type == dns_rdatatype_a);
+ REQUIRE(aaaa == NULL || !dns_rdataset_isassociated(aaaa) ||
+ aaaa->type == dns_rdatatype_aaaa);
+
+ if (a == NULL || aaaa == NULL) {
+ return (answer);
+ }
+
+ memset(&hints, 0, sizeof(hints));
+ hints.ai_flags = AI_CANONNAME;
+ hints.ai_family = PF_UNSPEC;
+ hints.ai_socktype = SOCK_STREAM;
+ hints.ai_protocol = IPPROTO_TCP;
+
+ dns_name_format(name, namebuf, sizeof(namebuf) - 1);
+ /*
+ * Turn off search.
+ */
+ if (dns_name_countlabels(name) > 1U) {
+ strlcat(namebuf, ".", sizeof(namebuf));
+ }
+ dns_name_format(owner, ownerbuf, sizeof(ownerbuf));
+
+ result = getaddrinfo(namebuf, NULL, &hints, &ai);
+ dns_name_format(name, namebuf, sizeof(namebuf) - 1);
+ switch (result) {
+ case 0:
+ /*
+ * Work around broken getaddrinfo() implementations that
+ * fail to set ai_canonname on first entry.
+ */
+ cur = ai;
+ while (cur != NULL && cur->ai_canonname == NULL &&
+ cur->ai_next != NULL)
+ {
+ cur = cur->ai_next;
+ }
+ if (cur != NULL && cur->ai_canonname != NULL &&
+ strcasecmp(cur->ai_canonname, namebuf) != 0 &&
+ !logged(namebuf, ERR_IS_CNAME))
+ {
+ dns_zone_log(zone, ISC_LOG_ERROR,
+ "%s/NS '%s' (out of zone) "
+ "is a CNAME '%s' (illegal)",
+ ownerbuf, namebuf, cur->ai_canonname);
+ /* XXX950 make fatal for 9.5.0 */
+ /* answer = false; */
+ add(namebuf, ERR_IS_CNAME);
+ }
+ break;
+ case EAI_NONAME:
+#if defined(EAI_NODATA) && (EAI_NODATA != EAI_NONAME)
+ case EAI_NODATA:
+#endif /* if defined(EAI_NODATA) && (EAI_NODATA != EAI_NONAME) */
+ if (!logged(namebuf, ERR_NO_ADDRESSES)) {
+ dns_zone_log(zone, ISC_LOG_ERROR,
+ "%s/NS '%s' (out of zone) "
+ "has no addresses records (A or AAAA)",
+ ownerbuf, namebuf);
+ add(namebuf, ERR_NO_ADDRESSES);
+ }
+ /* XXX950 make fatal for 9.5.0 */
+ return (true);
+
+ default:
+ if (!logged(namebuf, ERR_LOOKUP_FAILURE)) {
+ dns_zone_log(zone, ISC_LOG_WARNING,
+ "getaddrinfo(%s) failed: %s", namebuf,
+ gai_strerror(result));
+ add(namebuf, ERR_LOOKUP_FAILURE);
+ }
+ return (true);
+ }
+
+ /*
+ * Check that all glue records really exist.
+ */
+ if (!dns_rdataset_isassociated(a)) {
+ goto checkaaaa;
+ }
+ result = dns_rdataset_first(a);
+ while (result == ISC_R_SUCCESS) {
+ dns_rdataset_current(a, &rdata);
+ match = false;
+ for (cur = ai; cur != NULL; cur = cur->ai_next) {
+ if (cur->ai_family != AF_INET) {
+ continue;
+ }
+ ptr = &((struct sockaddr_in *)(cur->ai_addr))->sin_addr;
+ if (memcmp(ptr, rdata.data, rdata.length) == 0) {
+ match = true;
+ break;
+ }
+ }
+ if (!match && !logged(namebuf, ERR_EXTRA_A)) {
+ dns_zone_log(zone, ISC_LOG_ERROR,
+ "%s/NS '%s' "
+ "extra GLUE A record (%s)",
+ ownerbuf, namebuf,
+ inet_ntop(AF_INET, rdata.data, addrbuf,
+ sizeof(addrbuf)));
+ add(namebuf, ERR_EXTRA_A);
+ /* XXX950 make fatal for 9.5.0 */
+ /* answer = false; */
+ }
+ dns_rdata_reset(&rdata);
+ result = dns_rdataset_next(a);
+ }
+
+checkaaaa:
+ if (!dns_rdataset_isassociated(aaaa)) {
+ goto checkmissing;
+ }
+ result = dns_rdataset_first(aaaa);
+ while (result == ISC_R_SUCCESS) {
+ dns_rdataset_current(aaaa, &rdata);
+ match = false;
+ for (cur = ai; cur != NULL; cur = cur->ai_next) {
+ if (cur->ai_family != AF_INET6) {
+ continue;
+ }
+ ptr = &((struct sockaddr_in6 *)(cur->ai_addr))
+ ->sin6_addr;
+ if (memcmp(ptr, rdata.data, rdata.length) == 0) {
+ match = true;
+ break;
+ }
+ }
+ if (!match && !logged(namebuf, ERR_EXTRA_AAAA)) {
+ dns_zone_log(zone, ISC_LOG_ERROR,
+ "%s/NS '%s' "
+ "extra GLUE AAAA record (%s)",
+ ownerbuf, namebuf,
+ inet_ntop(AF_INET6, rdata.data, addrbuf,
+ sizeof(addrbuf)));
+ add(namebuf, ERR_EXTRA_AAAA);
+ /* XXX950 make fatal for 9.5.0. */
+ /* answer = false; */
+ }
+ dns_rdata_reset(&rdata);
+ result = dns_rdataset_next(aaaa);
+ }
+
+checkmissing:
+ /*
+ * Check that all addresses appear in the glue.
+ */
+ if (!logged(namebuf, ERR_MISSING_GLUE)) {
+ bool missing_glue = false;
+ for (cur = ai; cur != NULL; cur = cur->ai_next) {
+ switch (cur->ai_family) {
+ case AF_INET:
+ rdataset = a;
+ ptr = &((struct sockaddr_in *)(cur->ai_addr))
+ ->sin_addr;
+ type = "A";
+ break;
+ case AF_INET6:
+ rdataset = aaaa;
+ ptr = &((struct sockaddr_in6 *)(cur->ai_addr))
+ ->sin6_addr;
+ type = "AAAA";
+ break;
+ default:
+ continue;
+ }
+ match = false;
+ if (dns_rdataset_isassociated(rdataset)) {
+ result = dns_rdataset_first(rdataset);
+ } else {
+ result = ISC_R_FAILURE;
+ }
+ while (result == ISC_R_SUCCESS && !match) {
+ dns_rdataset_current(rdataset, &rdata);
+ if (memcmp(ptr, rdata.data, rdata.length) == 0)
+ {
+ match = true;
+ }
+ dns_rdata_reset(&rdata);
+ result = dns_rdataset_next(rdataset);
+ }
+ if (!match) {
+ dns_zone_log(zone, ISC_LOG_ERROR,
+ "%s/NS '%s' "
+ "missing GLUE %s record (%s)",
+ ownerbuf, namebuf, type,
+ inet_ntop(cur->ai_family, ptr,
+ addrbuf,
+ sizeof(addrbuf)));
+ /* XXX950 make fatal for 9.5.0. */
+ /* answer = false; */
+ missing_glue = true;
+ }
+ }
+ if (missing_glue) {
+ add(namebuf, ERR_MISSING_GLUE);
+ }
+ }
+ freeaddrinfo(ai);
+ return (answer);
+}
+
+static bool
+checkmx(dns_zone_t *zone, const dns_name_t *name, const dns_name_t *owner) {
+ struct addrinfo hints, *ai, *cur;
+ char namebuf[DNS_NAME_FORMATSIZE + 1];
+ char ownerbuf[DNS_NAME_FORMATSIZE];
+ int result;
+ int level = ISC_LOG_ERROR;
+ bool answer = true;
+
+ memset(&hints, 0, sizeof(hints));
+ hints.ai_flags = AI_CANONNAME;
+ hints.ai_family = PF_UNSPEC;
+ hints.ai_socktype = SOCK_STREAM;
+ hints.ai_protocol = IPPROTO_TCP;
+
+ dns_name_format(name, namebuf, sizeof(namebuf) - 1);
+ /*
+ * Turn off search.
+ */
+ if (dns_name_countlabels(name) > 1U) {
+ strlcat(namebuf, ".", sizeof(namebuf));
+ }
+ dns_name_format(owner, ownerbuf, sizeof(ownerbuf));
+
+ result = getaddrinfo(namebuf, NULL, &hints, &ai);
+ dns_name_format(name, namebuf, sizeof(namebuf) - 1);
+ switch (result) {
+ case 0:
+ /*
+ * Work around broken getaddrinfo() implementations that
+ * fail to set ai_canonname on first entry.
+ */
+ cur = ai;
+ while (cur != NULL && cur->ai_canonname == NULL &&
+ cur->ai_next != NULL)
+ {
+ cur = cur->ai_next;
+ }
+ if (cur != NULL && cur->ai_canonname != NULL &&
+ strcasecmp(cur->ai_canonname, namebuf) != 0)
+ {
+ if ((zone_options & DNS_ZONEOPT_WARNMXCNAME) != 0) {
+ level = ISC_LOG_WARNING;
+ }
+ if ((zone_options & DNS_ZONEOPT_IGNOREMXCNAME) == 0) {
+ if (!logged(namebuf, ERR_IS_MXCNAME)) {
+ dns_zone_log(zone, level,
+ "%s/MX '%s' (out of zone)"
+ " is a CNAME '%s' "
+ "(illegal)",
+ ownerbuf, namebuf,
+ cur->ai_canonname);
+ add(namebuf, ERR_IS_MXCNAME);
+ }
+ if (level == ISC_LOG_ERROR) {
+ answer = false;
+ }
+ }
+ }
+ freeaddrinfo(ai);
+ return (answer);
+
+ case EAI_NONAME:
+#if defined(EAI_NODATA) && (EAI_NODATA != EAI_NONAME)
+ case EAI_NODATA:
+#endif /* if defined(EAI_NODATA) && (EAI_NODATA != EAI_NONAME) */
+ if (!logged(namebuf, ERR_NO_ADDRESSES)) {
+ dns_zone_log(zone, ISC_LOG_ERROR,
+ "%s/MX '%s' (out of zone) "
+ "has no addresses records (A or AAAA)",
+ ownerbuf, namebuf);
+ add(namebuf, ERR_NO_ADDRESSES);
+ }
+ /* XXX950 make fatal for 9.5.0. */
+ return (true);
+
+ default:
+ if (!logged(namebuf, ERR_LOOKUP_FAILURE)) {
+ dns_zone_log(zone, ISC_LOG_WARNING,
+ "getaddrinfo(%s) failed: %s", namebuf,
+ gai_strerror(result));
+ add(namebuf, ERR_LOOKUP_FAILURE);
+ }
+ return (true);
+ }
+}
+
+static bool
+checksrv(dns_zone_t *zone, const dns_name_t *name, const dns_name_t *owner) {
+ struct addrinfo hints, *ai, *cur;
+ char namebuf[DNS_NAME_FORMATSIZE + 1];
+ char ownerbuf[DNS_NAME_FORMATSIZE];
+ int result;
+ int level = ISC_LOG_ERROR;
+ bool answer = true;
+
+ memset(&hints, 0, sizeof(hints));
+ hints.ai_flags = AI_CANONNAME;
+ hints.ai_family = PF_UNSPEC;
+ hints.ai_socktype = SOCK_STREAM;
+ hints.ai_protocol = IPPROTO_TCP;
+
+ dns_name_format(name, namebuf, sizeof(namebuf) - 1);
+ /*
+ * Turn off search.
+ */
+ if (dns_name_countlabels(name) > 1U) {
+ strlcat(namebuf, ".", sizeof(namebuf));
+ }
+ dns_name_format(owner, ownerbuf, sizeof(ownerbuf));
+
+ result = getaddrinfo(namebuf, NULL, &hints, &ai);
+ dns_name_format(name, namebuf, sizeof(namebuf) - 1);
+ switch (result) {
+ case 0:
+ /*
+ * Work around broken getaddrinfo() implementations that
+ * fail to set ai_canonname on first entry.
+ */
+ cur = ai;
+ while (cur != NULL && cur->ai_canonname == NULL &&
+ cur->ai_next != NULL)
+ {
+ cur = cur->ai_next;
+ }
+ if (cur != NULL && cur->ai_canonname != NULL &&
+ strcasecmp(cur->ai_canonname, namebuf) != 0)
+ {
+ if ((zone_options & DNS_ZONEOPT_WARNSRVCNAME) != 0) {
+ level = ISC_LOG_WARNING;
+ }
+ if ((zone_options & DNS_ZONEOPT_IGNORESRVCNAME) == 0) {
+ if (!logged(namebuf, ERR_IS_SRVCNAME)) {
+ dns_zone_log(zone, level,
+ "%s/SRV '%s'"
+ " (out of zone) is a "
+ "CNAME '%s' (illegal)",
+ ownerbuf, namebuf,
+ cur->ai_canonname);
+ add(namebuf, ERR_IS_SRVCNAME);
+ }
+ if (level == ISC_LOG_ERROR) {
+ answer = false;
+ }
+ }
+ }
+ freeaddrinfo(ai);
+ return (answer);
+
+ case EAI_NONAME:
+#if defined(EAI_NODATA) && (EAI_NODATA != EAI_NONAME)
+ case EAI_NODATA:
+#endif /* if defined(EAI_NODATA) && (EAI_NODATA != EAI_NONAME) */
+ if (!logged(namebuf, ERR_NO_ADDRESSES)) {
+ dns_zone_log(zone, ISC_LOG_ERROR,
+ "%s/SRV '%s' (out of zone) "
+ "has no addresses records (A or AAAA)",
+ ownerbuf, namebuf);
+ add(namebuf, ERR_NO_ADDRESSES);
+ }
+ /* XXX950 make fatal for 9.5.0. */
+ return (true);
+
+ default:
+ if (!logged(namebuf, ERR_LOOKUP_FAILURE)) {
+ dns_zone_log(zone, ISC_LOG_WARNING,
+ "getaddrinfo(%s) failed: %s", namebuf,
+ gai_strerror(result));
+ add(namebuf, ERR_LOOKUP_FAILURE);
+ }
+ return (true);
+ }
+}
+
+isc_result_t
+setup_logging(isc_mem_t *mctx, FILE *errout, isc_log_t **logp) {
+ isc_logdestination_t destination;
+ isc_logconfig_t *logconfig = NULL;
+ isc_log_t *log = NULL;
+
+ isc_log_create(mctx, &log, &logconfig);
+ isc_log_registercategories(log, categories);
+ isc_log_setcontext(log);
+ dns_log_init(log);
+ dns_log_setcontext(log);
+ cfg_log_init(log);
+ ns_log_init(log);
+
+ destination.file.stream = errout;
+ destination.file.name = NULL;
+ destination.file.versions = ISC_LOG_ROLLNEVER;
+ destination.file.maximum_size = 0;
+ isc_log_createchannel(logconfig, "stderr", ISC_LOG_TOFILEDESC,
+ ISC_LOG_DYNAMIC, &destination, 0);
+
+ RUNTIME_CHECK(isc_log_usechannel(logconfig, "stderr", NULL, NULL) ==
+ ISC_R_SUCCESS);
+
+ *logp = log;
+ return (ISC_R_SUCCESS);
+}
+
+/*% load the zone */
+isc_result_t
+load_zone(isc_mem_t *mctx, const char *zonename, const char *filename,
+ dns_masterformat_t fileformat, const char *classname,
+ dns_ttl_t maxttl, dns_zone_t **zonep) {
+ isc_result_t result;
+ dns_rdataclass_t rdclass;
+ isc_textregion_t region;
+ isc_buffer_t buffer;
+ dns_fixedname_t fixorigin;
+ dns_name_t *origin;
+ dns_zone_t *zone = NULL;
+
+ REQUIRE(zonep == NULL || *zonep == NULL);
+
+ if (debug) {
+ fprintf(stderr, "loading \"%s\" from \"%s\" class \"%s\"\n",
+ zonename, filename, classname);
+ }
+
+ CHECK(dns_zone_create(&zone, mctx));
+
+ dns_zone_settype(zone, dns_zone_primary);
+
+ isc_buffer_constinit(&buffer, zonename, strlen(zonename));
+ isc_buffer_add(&buffer, strlen(zonename));
+ origin = dns_fixedname_initname(&fixorigin);
+ CHECK(dns_name_fromtext(origin, &buffer, dns_rootname, 0, NULL));
+ CHECK(dns_zone_setorigin(zone, origin));
+ dns_zone_setdbtype(zone, 1, (const char *const *)dbtype);
+ if (strcmp(filename, "-") == 0) {
+ CHECK(dns_zone_setstream(zone, stdin, fileformat,
+ &dns_master_style_default));
+ } else {
+ CHECK(dns_zone_setfile(zone, filename, fileformat,
+ &dns_master_style_default));
+ }
+ if (journal != NULL) {
+ CHECK(dns_zone_setjournal(zone, journal));
+ }
+
+ DE_CONST(classname, region.base);
+ region.length = strlen(classname);
+ CHECK(dns_rdataclass_fromtext(&rdclass, &region));
+
+ dns_zone_setclass(zone, rdclass);
+ dns_zone_setoption(zone, zone_options, true);
+ dns_zone_setoption(zone, DNS_ZONEOPT_NOMERGE, nomerge);
+
+ dns_zone_setmaxttl(zone, maxttl);
+
+ if (docheckmx) {
+ dns_zone_setcheckmx(zone, checkmx);
+ }
+ if (docheckns) {
+ dns_zone_setcheckns(zone, checkns);
+ }
+ if (dochecksrv) {
+ dns_zone_setchecksrv(zone, checksrv);
+ }
+
+ CHECK(dns_zone_load(zone, false));
+
+ if (zonep != NULL) {
+ *zonep = zone;
+ zone = NULL;
+ }
+
+cleanup:
+ if (zone != NULL) {
+ dns_zone_detach(&zone);
+ }
+ return (result);
+}
+
+/*% dump the zone */
+isc_result_t
+dump_zone(const char *zonename, dns_zone_t *zone, const char *filename,
+ dns_masterformat_t fileformat, const dns_master_style_t *style,
+ const uint32_t rawversion) {
+ isc_result_t result;
+ FILE *output = stdout;
+ const char *flags;
+
+ flags = (fileformat == dns_masterformat_text) ? "w" : "wb";
+
+ if (debug) {
+ if (filename != NULL && strcmp(filename, "-") != 0) {
+ fprintf(stderr, "dumping \"%s\" to \"%s\"\n", zonename,
+ filename);
+ } else {
+ fprintf(stderr, "dumping \"%s\"\n", zonename);
+ }
+ }
+
+ if (filename != NULL && strcmp(filename, "-") != 0) {
+ result = isc_stdio_open(filename, flags, &output);
+
+ if (result != ISC_R_SUCCESS) {
+ fprintf(stderr,
+ "could not open output "
+ "file \"%s\" for writing\n",
+ filename);
+ return (ISC_R_FAILURE);
+ }
+ }
+
+ result = dns_zone_dumptostream(zone, output, fileformat, style,
+ rawversion);
+ if (output != stdout) {
+ (void)isc_stdio_close(output);
+ }
+
+ return (result);
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-03 17:03:41 +0000