1 files changed, 313 insertions, 0 deletions
diff --git a/bin/dnssec/dnssectool.c b/bin/dnssec/dnssectool.c
new file mode 100644
index 0000000..e933a06
--- /dev/null
+++ b/bin/dnssec/dnssectool.c
@@ -0,0 +1,313 @@
+/*
+ * Copyright (C) 2004, 2005, 2007  Internet Systems Consortium, Inc. ("ISC")
+ * Copyright (C) 2000, 2001, 2003  Internet Software Consortium.
+ *
+ * Permission to use, copy, modify, and/or 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: dnssectool.c,v 1.45 2007/06/19 23:46:59 tbox Exp $ */
+
+/*! \file */
+
+/*%
+ * DNSSEC Support Routines.
+ */
+
+#include <config.h>
+
+#include <stdlib.h>
+
+#include <isc/buffer.h>
+#include <isc/entropy.h>
+#include <isc/list.h>
+#include <isc/mem.h>
+#include <isc/string.h>
+#include <isc/time.h>
+#include <isc/util.h>
+#include <isc/print.h>
+
+#include <dns/log.h>
+#include <dns/name.h>
+#include <dns/rdatastruct.h>
+#include <dns/rdataclass.h>
+#include <dns/rdatatype.h>
+#include <dns/result.h>
+#include <dns/secalg.h>
+#include <dns/time.h>
+
+#include "dnssectool.h"
+
+extern int verbose;
+extern const char *program;
+
+typedef struct entropysource entropysource_t;
+
+struct entropysource {
+	isc_entropysource_t *source;
+	isc_mem_t *mctx;
+	ISC_LINK(entropysource_t) link;
+};
+
+static ISC_LIST(entropysource_t) sources;
+static fatalcallback_t *fatalcallback = NULL;
+
+void
+fatal(const char *format, ...) {
+	va_list args;
+
+	fprintf(stderr, "%s: ", program);
+	va_start(args, format);
+	vfprintf(stderr, format, args);
+	va_end(args);
+	fprintf(stderr, "\n");
+	if (fatalcallback != NULL)
+		(*fatalcallback)();
+	exit(1);
+}
+
+void
+setfatalcallback(fatalcallback_t *callback) {
+	fatalcallback = callback;
+}
+
+void
+check_result(isc_result_t result, const char *message) {
+	if (result != ISC_R_SUCCESS)
+		fatal("%s: %s", message, isc_result_totext(result));
+}
+
+void
+vbprintf(int level, const char *fmt, ...) {
+	va_list ap;
+	if (level > verbose)
+		return;
+	va_start(ap, fmt);
+	fprintf(stderr, "%s: ", program);
+	vfprintf(stderr, fmt, ap);
+	va_end(ap);
+}
+
+void
+type_format(const dns_rdatatype_t type, char *cp, unsigned int size) {
+	isc_buffer_t b;
+	isc_region_t r;
+	isc_result_t result;
+
+	isc_buffer_init(&b, cp, size - 1);
+	result = dns_rdatatype_totext(type, &b);
+	check_result(result, "dns_rdatatype_totext()");
+	isc_buffer_usedregion(&b, &r);
+	r.base[r.length] = 0;
+}
+
+void
+alg_format(const dns_secalg_t alg, char *cp, unsigned int size) {
+	isc_buffer_t b;
+	isc_region_t r;
+	isc_result_t result;
+
+	isc_buffer_init(&b, cp, size - 1);
+	result = dns_secalg_totext(alg, &b);
+	check_result(result, "dns_secalg_totext()");
+	isc_buffer_usedregion(&b, &r);
+	r.base[r.length] = 0;
+}
+
+void
+sig_format(dns_rdata_rrsig_t *sig, char *cp, unsigned int size) {
+	char namestr[DNS_NAME_FORMATSIZE];
+	char algstr[DNS_NAME_FORMATSIZE];
+
+	dns_name_format(&sig->signer, namestr, sizeof(namestr));
+	alg_format(sig->algorithm, algstr, sizeof(algstr));
+	snprintf(cp, size, "%s/%s/%d", namestr, algstr, sig->keyid);
+}
+
+void
+key_format(const dst_key_t *key, char *cp, unsigned int size) {
+	char namestr[DNS_NAME_FORMATSIZE];
+	char algstr[DNS_NAME_FORMATSIZE];
+
+	dns_name_format(dst_key_name(key), namestr, sizeof(namestr));
+	alg_format((dns_secalg_t) dst_key_alg(key), algstr, sizeof(algstr));
+	snprintf(cp, size, "%s/%s/%d", namestr, algstr, dst_key_id(key));
+}
+
+void
+setup_logging(int verbose, isc_mem_t *mctx, isc_log_t **logp) {
+	isc_result_t result;
+	isc_logdestination_t destination;
+	isc_logconfig_t *logconfig = NULL;
+	isc_log_t *log = NULL;
+	int level;
+
+	if (verbose < 0)
+		verbose = 0;
+	switch (verbose) {
+	case 0:
+		/*
+		 * We want to see warnings about things like out-of-zone
+		 * data in the master file even when not verbose.
+		 */
+		level = ISC_LOG_WARNING;
+		break;
+	case 1:
+		level = ISC_LOG_INFO;
+		break;
+	default:
+		level = ISC_LOG_DEBUG(verbose - 2 + 1);
+		break;
+	}
+
+	RUNTIME_CHECK(isc_log_create(mctx, &log, &logconfig) == ISC_R_SUCCESS);
+	isc_log_setcontext(log);
+	dns_log_init(log);
+	dns_log_setcontext(log);
+
+	RUNTIME_CHECK(isc_log_settag(logconfig, program) == ISC_R_SUCCESS);
+
+	/*
+	 * Set up a channel similar to default_stderr except:
+	 *  - the logging level is passed in
+	 *  - the program name and logging level are printed
+	 *  - no time stamp is printed
+	 */
+	destination.file.stream = stderr;
+	destination.file.name = NULL;
+	destination.file.versions = ISC_LOG_ROLLNEVER;
+	destination.file.maximum_size = 0;
+	result = isc_log_createchannel(logconfig, "stderr",
+				       ISC_LOG_TOFILEDESC,
+				       level,
+				       &destination,
+				       ISC_LOG_PRINTTAG|ISC_LOG_PRINTLEVEL);
+	check_result(result, "isc_log_createchannel()");
+
+	RUNTIME_CHECK(isc_log_usechannel(logconfig, "stderr",
+					 NULL, NULL) == ISC_R_SUCCESS);
+
+	*logp = log;
+}
+
+void
+cleanup_logging(isc_log_t **logp) {
+	isc_log_t *log;
+
+	REQUIRE(logp != NULL);
+
+	log = *logp;
+	if (log == NULL)
+		return;
+	isc_log_destroy(&log);
+	isc_log_setcontext(NULL);
+	dns_log_setcontext(NULL);
+	logp = NULL;
+}
+
+void
+setup_entropy(isc_mem_t *mctx, const char *randomfile, isc_entropy_t **ectx) {
+	isc_result_t result;
+	isc_entropysource_t *source = NULL;
+	entropysource_t *elt;
+	int usekeyboard = ISC_ENTROPY_KEYBOARDMAYBE;
+
+	REQUIRE(ectx != NULL);
+	
+	if (*ectx == NULL) {
+		result = isc_entropy_create(mctx, ectx);
+		if (result != ISC_R_SUCCESS)
+			fatal("could not create entropy object");
+		ISC_LIST_INIT(sources);
+	}
+
+	if (randomfile != NULL && strcmp(randomfile, "keyboard") == 0) {
+		usekeyboard = ISC_ENTROPY_KEYBOARDYES;
+		randomfile = NULL;
+	}
+
+	result = isc_entropy_usebestsource(*ectx, &source, randomfile,
+					   usekeyboard);
+
+	if (result != ISC_R_SUCCESS)
+		fatal("could not initialize entropy source: %s",
+		      isc_result_totext(result));
+
+	if (source != NULL) {
+		elt = isc_mem_get(mctx, sizeof(*elt));
+		if (elt == NULL)
+			fatal("out of memory");
+		elt->source = source;
+		elt->mctx = mctx;
+		ISC_LINK_INIT(elt, link);
+		ISC_LIST_APPEND(sources, elt, link);
+	}
+}
+
+void
+cleanup_entropy(isc_entropy_t **ectx) {
+	entropysource_t *source;
+	while (!ISC_LIST_EMPTY(sources)) {
+		source = ISC_LIST_HEAD(sources);
+		ISC_LIST_UNLINK(sources, source, link);
+		isc_entropy_destroysource(&source->source);
+		isc_mem_put(source->mctx, source, sizeof(*source));
+	}
+	isc_entropy_detach(ectx);
+}
+
+isc_stdtime_t
+strtotime(const char *str, isc_int64_t now, isc_int64_t base) {
+	isc_int64_t val, offset;
+	isc_result_t result;
+	char *endp;
+
+	if (str[0] == '+') {
+		offset = strtol(str + 1, &endp, 0);
+		if (*endp != '\0')
+			fatal("time value %s is invalid", str);
+		val = base + offset;
+	} else if (strncmp(str, "now+", 4) == 0) {
+		offset = strtol(str + 4, &endp, 0);
+		if (*endp != '\0')
+			fatal("time value %s is invalid", str);
+		val = now + offset;
+	} else if (strlen(str) == 8U) {
+		char timestr[15];
+		sprintf(timestr, "%s000000", str);
+		result = dns_time64_fromtext(timestr, &val);
+		if (result != ISC_R_SUCCESS)
+			fatal("time value %s is invalid", str);
+	} else {
+		result = dns_time64_fromtext(str, &val);
+		if (result != ISC_R_SUCCESS)
+			fatal("time value %s is invalid", str);
+	}
+
+	return ((isc_stdtime_t) val);
+}
+
+dns_rdataclass_t
+strtoclass(const char *str) {
+	isc_textregion_t r;
+	dns_rdataclass_t rdclass;
+	isc_result_t ret;
+
+	if (str == NULL)
+		return dns_rdataclass_in;
+	DE_CONST(str, r.base);
+	r.length = strlen(str);
+	ret = dns_rdataclass_fromtext(&rdclass, &r);
+	if (ret != ISC_R_SUCCESS)
+		fatal("unknown class %s", str);
+	return (rdclass);
+}