libdnssec, add tests for dnssec_key_create_ds()

src/dnssec/tests/.gitignore

@@ -11,6 +11,7 @@
 /kasp_store
 /key
 /key_algorithm
+/key_ds
 /keyid
 /keystore_pkcs8
 /keystore_pkcs8_dir

src/dnssec/tests/Makefile.am

@@ -28,6 +28,7 @@ check_PROGRAMS = \
 	kasp_store	\
 	key		\
 	key_algorithm	\
+	key_ds		\
 	keyid		\
 	keystore_pkcs8	\
 	keystore_pkcs8_dir \

src/dnssec/tests/key_ds.c

+/*  Copyright (C) 2015 CZ.NIC, z.s.p.o. <knot-dns@labs.nic.cz>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <tap/basic.h>
+
+#include <stddef.h>
+#include <string.h>
+
+#include "dnssec/crypto.h"
+#include "dnssec/error.h"
+#include "dnssec/key.h"
+#include "sample_keys.h"
+
+static void test_key(const char *name, const struct key_parameters *params)
+{
+	dnssec_key_t *key = NULL;
+
+	dnssec_key_new(&key);
+	dnssec_key_set_dname(key, params->name);
+	dnssec_key_set_rdata(key, &params->rdata);
+
+	struct ds_type {
+		const char *name;
+		dnssec_key_digest_t digest;
+		size_t params_offset;
+	};
+
+	static const struct ds_type DS_TYPES[] = {
+		{ "SHA-1",   DNSSEC_KEY_DIGEST_SHA1,   offsetof(typeof(*params), ds_sha1)   },
+		{ "SHA-256", DNSSEC_KEY_DIGEST_SHA256, offsetof(typeof(*params), ds_sha256) },
+		{ "SHA-384", DNSSEC_KEY_DIGEST_SHA384, offsetof(typeof(*params), ds_sha384) },
+		{ NULL }
+	};
+
+	for (const struct ds_type *dt = DS_TYPES; dt->name != NULL; dt++) {
+		dnssec_binary_t ds = { 0 };
+		int r = dnssec_key_create_ds(key, dt->digest, &ds);
+
+		const dnssec_binary_t *expect = (void *)params + dt->params_offset;
+
+		ok(r == DNSSEC_EOK &&
+		   ds.size == expect->size &&
+		   memcmp(ds.data, expect->data, ds.size) == 0,
+		   "dnssec_key_create_ds() for %s/%s", name, dt->name);
+
+		dnssec_binary_free(&ds);
+	}
+
+	dnssec_key_free(key);
+}
+
+int main(int argc, char *argv[])
+{
+	plan_lazy();
+
+	test_key("RSA",   &SAMPLE_RSA_KEY);
+	test_key("DSA",   &SAMPLE_DSA_KEY);
+	test_key("ECDSA", &SAMPLE_ECDSA_KEY);
+
+	return 0;
+}