diff --git a/tools/regression/lib/libnv/Makefile b/tools/regression/lib/libnv/Makefile
new file mode 100644
index 000000000000..a64cb63fbe66
--- /dev/null
+++ b/tools/regression/lib/libnv/Makefile
@@ -0,0 +1,35 @@
+# $FreeBSD$
+
+TESTS=	nvlist_add
+TESTS+=	nvlist_exists
+TESTS+=	nvlist_free
+TESTS+=	nvlist_get
+TESTS+=	nvlist_move
+TESTS+=	nvlist_send_recv
+
+CFLAGS=	-O2 -pipe -fstack-protector
+CFLAGS+=-Wsystem-headers -Werror -Wall -Wno-format-y2k -W -Wno-unused-parameter
+CFLAGS+=-Wstrict-prototypes -Wmissing-prototypes -Wpointer-arith -Wreturn-type
+CFLAGS+=-Wcast-qual -Wwrite-strings -Wswitch -Wshadow -Wunused-parameter
+CFLAGS+=-Wcast-align -Wchar-subscripts -Winline -Wnested-externs -Wredundant-decls
+CFLAGS+=-Wold-style-definition -Wno-pointer-sign -Wextra
+
+LDFLAGS+=-lnv
+
+all:	${TESTS} ${TESTS:=.t}
+
+.for TEST in ${TESTS}
+
+${TEST}:	${TEST}.c
+	${CC} ${CFLAGS} ${LDFLAGS} ${@}.c -o $@
+
+${TEST}.t:   ${TEST}
+	@printf "#!/bin/sh\n\n%s/%s\n" ${.CURDIR} ${@:.t=} > $@
+
+.endfor
+
+test:   all
+	@prove -r ${.CURDIR}
+
+clean:
+	rm -f ${TESTS} ${TESTS:=.t}
diff --git a/tools/regression/lib/libnv/nvlist_add.c b/tools/regression/lib/libnv/nvlist_add.c
new file mode 100644
index 000000000000..06bcc639df94
--- /dev/null
+++ b/tools/regression/lib/libnv/nvlist_add.c
@@ -0,0 +1,196 @@
+/*-
+ * Copyright (c) 2013 The FreeBSD Foundation
+ * All rights reserved.
+ *
+ * This software was developed by Pawel Jakub Dawidek under sponsorship from
+ * the FreeBSD Foundation.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#include <errno.h>
+#include <stdio.h>
+#include <unistd.h>
+
+#include <nv.h>
+
+static int ntest = 1;
+
+#define	CHECK(expr)	do {						\
+	if ((expr))							\
+		printf("ok # %d %s:%u\n", ntest, __FILE__, __LINE__);	\
+	else								\
+		printf("not ok # %d %s:%u\n", ntest, __FILE__, __LINE__);\
+	ntest++;							\
+} while (0)
+
+int
+main(void)
+{
+	const nvlist_t *cnvl;
+	nvlist_t *nvl;
+
+	printf("1..94\n");
+
+	nvl = nvlist_create(0);
+
+	CHECK(!nvlist_exists_null(nvl, "nvlist/null"));
+	nvlist_add_null(nvl, "nvlist/null");
+	CHECK(nvlist_error(nvl) == 0);
+	CHECK(nvlist_exists_null(nvl, "nvlist/null"));
+
+	CHECK(!nvlist_exists_bool(nvl, "nvlist/bool/true"));
+	nvlist_add_bool(nvl, "nvlist/bool/true", true);
+	CHECK(nvlist_error(nvl) == 0);
+	CHECK(nvlist_exists_bool(nvl, "nvlist/bool/true"));
+
+	CHECK(!nvlist_exists_bool(nvl, "nvlist/bool/false"));
+	nvlist_add_bool(nvl, "nvlist/bool/false", false);
+	CHECK(nvlist_error(nvl) == 0);
+	CHECK(nvlist_exists_bool(nvl, "nvlist/bool/false"));
+
+	CHECK(!nvlist_exists_number(nvl, "nvlist/number/0"));
+	nvlist_add_number(nvl, "nvlist/number/0", 0);
+	CHECK(nvlist_error(nvl) == 0);
+	CHECK(nvlist_exists_number(nvl, "nvlist/number/0"));
+
+	CHECK(!nvlist_exists_number(nvl, "nvlist/number/1"));
+	nvlist_add_number(nvl, "nvlist/number/1", 1);
+	CHECK(nvlist_error(nvl) == 0);
+	CHECK(nvlist_exists_number(nvl, "nvlist/number/1"));
+
+	CHECK(!nvlist_exists_number(nvl, "nvlist/number/-1"));
+	nvlist_add_number(nvl, "nvlist/number/-1", -1);
+	CHECK(nvlist_error(nvl) == 0);
+	CHECK(nvlist_exists_number(nvl, "nvlist/number/-1"));
+
+	CHECK(!nvlist_exists_number(nvl, "nvlist/number/UINT64_MAX"));
+	nvlist_add_number(nvl, "nvlist/number/UINT64_MAX", UINT64_MAX);
+	CHECK(nvlist_error(nvl) == 0);
+	CHECK(nvlist_exists_number(nvl, "nvlist/number/UINT64_MAX"));
+
+	CHECK(!nvlist_exists_number(nvl, "nvlist/number/INT64_MIN"));
+	nvlist_add_number(nvl, "nvlist/number/INT64_MIN", INT64_MIN);
+	CHECK(nvlist_error(nvl) == 0);
+	CHECK(nvlist_exists_number(nvl, "nvlist/number/INT64_MIN"));
+
+	CHECK(!nvlist_exists_number(nvl, "nvlist/number/INT64_MAX"));
+	nvlist_add_number(nvl, "nvlist/number/INT64_MAX", INT64_MAX);
+	CHECK(nvlist_error(nvl) == 0);
+	CHECK(nvlist_exists_number(nvl, "nvlist/number/INT64_MAX"));
+
+	CHECK(!nvlist_exists_string(nvl, "nvlist/string/"));
+	nvlist_add_string(nvl, "nvlist/string/", "");
+	CHECK(nvlist_error(nvl) == 0);
+	CHECK(nvlist_exists_string(nvl, "nvlist/string/"));
+
+	CHECK(!nvlist_exists_string(nvl, "nvlist/string/x"));
+	nvlist_add_string(nvl, "nvlist/string/x", "x");
+	CHECK(nvlist_error(nvl) == 0);
+	CHECK(nvlist_exists_string(nvl, "nvlist/string/x"));
+
+	CHECK(!nvlist_exists_string(nvl, "nvlist/string/abcdefghijklmnopqrstuvwxyz"));
+	nvlist_add_string(nvl, "nvlist/string/abcdefghijklmnopqrstuvwxyz", "abcdefghijklmnopqrstuvwxyz");
+	CHECK(nvlist_error(nvl) == 0);
+	CHECK(nvlist_exists_string(nvl, "nvlist/string/abcdefghijklmnopqrstuvwxyz"));
+
+	CHECK(!nvlist_exists_string(nvl, "nvlist/stringf/"));
+	nvlist_add_stringf(nvl, "nvlist/stringf/", "%s", "");
+	CHECK(nvlist_error(nvl) == 0);
+	CHECK(nvlist_exists_string(nvl, "nvlist/stringf/"));
+
+	CHECK(!nvlist_exists_string(nvl, "nvlist/stringf/x"));
+	nvlist_add_stringf(nvl, "nvlist/stringf/x", "%s", "x");
+	CHECK(nvlist_error(nvl) == 0);
+	CHECK(nvlist_exists_string(nvl, "nvlist/stringf/x"));
+
+	CHECK(!nvlist_exists_string(nvl, "nvlist/stringf/666Xabc"));
+	nvlist_add_stringf(nvl, "nvlist/stringf/666Xabc", "%d%c%s", 666, 'X', "abc");
+	CHECK(nvlist_error(nvl) == 0);
+	CHECK(nvlist_exists_string(nvl, "nvlist/stringf/666Xabc"));
+
+	CHECK(!nvlist_exists_descriptor(nvl, "nvlist/descriptor/STDERR_FILENO"));
+	nvlist_add_descriptor(nvl, "nvlist/descriptor/STDERR_FILENO", STDERR_FILENO);
+	CHECK(nvlist_error(nvl) == 0);
+	CHECK(nvlist_exists_descriptor(nvl, "nvlist/descriptor/STDERR_FILENO"));
+
+	CHECK(!nvlist_exists_binary(nvl, "nvlist/binary/x"));
+	nvlist_add_binary(nvl, "nvlist/binary/x", "x", 1);
+	CHECK(nvlist_error(nvl) == 0);
+	CHECK(nvlist_exists_binary(nvl, "nvlist/binary/x"));
+
+	CHECK(!nvlist_exists_binary(nvl, "nvlist/binary/abcdefghijklmnopqrstuvwxyz"));
+	nvlist_add_binary(nvl, "nvlist/binary/abcdefghijklmnopqrstuvwxyz", "abcdefghijklmnopqrstuvwxyz", sizeof("abcdefghijklmnopqrstuvwxyz"));
+	CHECK(nvlist_error(nvl) == 0);
+	CHECK(nvlist_exists_binary(nvl, "nvlist/binary/abcdefghijklmnopqrstuvwxyz"));
+
+	CHECK(!nvlist_exists_nvlist(nvl, "nvlist/nvlist"));
+	nvlist_add_nvlist(nvl, "nvlist/nvlist", nvl);
+	CHECK(nvlist_error(nvl) == 0);
+	CHECK(nvlist_exists_nvlist(nvl, "nvlist/nvlist"));
+
+	CHECK(nvlist_exists_null(nvl, "nvlist/null"));
+	CHECK(nvlist_exists_bool(nvl, "nvlist/bool/true"));
+	CHECK(nvlist_exists_bool(nvl, "nvlist/bool/false"));
+	CHECK(nvlist_exists_number(nvl, "nvlist/number/0"));
+	CHECK(nvlist_exists_number(nvl, "nvlist/number/1"));
+	CHECK(nvlist_exists_number(nvl, "nvlist/number/-1"));
+	CHECK(nvlist_exists_number(nvl, "nvlist/number/UINT64_MAX"));
+	CHECK(nvlist_exists_number(nvl, "nvlist/number/INT64_MIN"));
+	CHECK(nvlist_exists_number(nvl, "nvlist/number/INT64_MAX"));
+	CHECK(nvlist_exists_string(nvl, "nvlist/string/"));
+	CHECK(nvlist_exists_string(nvl, "nvlist/string/x"));
+	CHECK(nvlist_exists_string(nvl, "nvlist/string/abcdefghijklmnopqrstuvwxyz"));
+	CHECK(nvlist_exists_string(nvl, "nvlist/stringf/"));
+	CHECK(nvlist_exists_string(nvl, "nvlist/stringf/x"));
+	CHECK(nvlist_exists_string(nvl, "nvlist/stringf/666Xabc"));
+	CHECK(nvlist_exists_descriptor(nvl, "nvlist/descriptor/STDERR_FILENO"));
+	CHECK(nvlist_exists_binary(nvl, "nvlist/binary/x"));
+	CHECK(nvlist_exists_binary(nvl, "nvlist/binary/abcdefghijklmnopqrstuvwxyz"));
+	CHECK(nvlist_exists_nvlist(nvl, "nvlist/nvlist"));
+
+	cnvl = nvlist_get_nvlist(nvl, "nvlist/nvlist");
+	CHECK(nvlist_exists_null(cnvl, "nvlist/null"));
+	CHECK(nvlist_exists_bool(cnvl, "nvlist/bool/true"));
+	CHECK(nvlist_exists_bool(cnvl, "nvlist/bool/false"));
+	CHECK(nvlist_exists_number(cnvl, "nvlist/number/0"));
+	CHECK(nvlist_exists_number(cnvl, "nvlist/number/1"));
+	CHECK(nvlist_exists_number(cnvl, "nvlist/number/-1"));
+	CHECK(nvlist_exists_number(cnvl, "nvlist/number/UINT64_MAX"));
+	CHECK(nvlist_exists_number(cnvl, "nvlist/number/INT64_MIN"));
+	CHECK(nvlist_exists_number(cnvl, "nvlist/number/INT64_MAX"));
+	CHECK(nvlist_exists_string(cnvl, "nvlist/string/"));
+	CHECK(nvlist_exists_string(cnvl, "nvlist/string/x"));
+	CHECK(nvlist_exists_string(cnvl, "nvlist/string/abcdefghijklmnopqrstuvwxyz"));
+	CHECK(nvlist_exists_string(cnvl, "nvlist/stringf/"));
+	CHECK(nvlist_exists_string(cnvl, "nvlist/stringf/x"));
+	CHECK(nvlist_exists_string(cnvl, "nvlist/stringf/666Xabc"));
+	CHECK(nvlist_exists_descriptor(cnvl, "nvlist/descriptor/STDERR_FILENO"));
+	CHECK(nvlist_exists_binary(cnvl, "nvlist/binary/x"));
+	CHECK(nvlist_exists_binary(cnvl, "nvlist/binary/abcdefghijklmnopqrstuvwxyz"));
+
+	nvlist_destroy(nvl);
+
+	return (0);
+}
diff --git a/tools/regression/lib/libnv/nvlist_exists.c b/tools/regression/lib/libnv/nvlist_exists.c
new file mode 100644
index 000000000000..cb595d7b7841
--- /dev/null
+++ b/tools/regression/lib/libnv/nvlist_exists.c
@@ -0,0 +1,321 @@
+/*-
+ * Copyright (c) 2013 The FreeBSD Foundation
+ * All rights reserved.
+ *
+ * This software was developed by Pawel Jakub Dawidek under sponsorship from
+ * the FreeBSD Foundation.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#include <stdio.h>
+#include <unistd.h>
+
+#include <nv.h>
+
+static int ntest = 1;
+
+#define	CHECK(expr)	do {						\
+	if ((expr))							\
+		printf("ok # %d %s:%u\n", ntest, __FILE__, __LINE__);	\
+	else								\
+		printf("not ok # %d %s:%u\n", ntest, __FILE__, __LINE__);\
+	ntest++;							\
+} while (0)
+
+int
+main(void)
+{
+	nvlist_t *nvl;
+
+	printf("1..232\n");
+
+	nvl = nvlist_create(0);
+
+	CHECK(!nvlist_exists(nvl, "nvlist/null"));
+	CHECK(!nvlist_exists_null(nvl, "nvlist/null"));
+	CHECK(!nvlist_exists_bool(nvl, "nvlist/null"));
+	CHECK(!nvlist_exists_number(nvl, "nvlist/null"));
+	CHECK(!nvlist_exists_string(nvl, "nvlist/null"));
+	CHECK(!nvlist_exists_nvlist(nvl, "nvlist/null"));
+	CHECK(!nvlist_exists_descriptor(nvl, "nvlist/null"));
+	CHECK(!nvlist_exists_binary(nvl, "nvlist/null"));
+	nvlist_add_null(nvl, "nvlist/null");
+	CHECK(nvlist_error(nvl) == 0);
+	CHECK(nvlist_exists(nvl, "nvlist/null"));
+	CHECK(nvlist_exists_null(nvl, "nvlist/null"));
+	CHECK(!nvlist_exists_bool(nvl, "nvlist/null"));
+	CHECK(!nvlist_exists_number(nvl, "nvlist/null"));
+	CHECK(!nvlist_exists_string(nvl, "nvlist/null"));
+	CHECK(!nvlist_exists_nvlist(nvl, "nvlist/null"));
+	CHECK(!nvlist_exists_descriptor(nvl, "nvlist/null"));
+	CHECK(!nvlist_exists_binary(nvl, "nvlist/null"));
+
+	CHECK(!nvlist_exists(nvl, "nvlist/bool"));
+	CHECK(!nvlist_exists_null(nvl, "nvlist/bool"));
+	CHECK(!nvlist_exists_bool(nvl, "nvlist/bool"));
+	CHECK(!nvlist_exists_number(nvl, "nvlist/bool"));
+	CHECK(!nvlist_exists_string(nvl, "nvlist/bool"));
+	CHECK(!nvlist_exists_nvlist(nvl, "nvlist/bool"));
+	CHECK(!nvlist_exists_descriptor(nvl, "nvlist/bool"));
+	CHECK(!nvlist_exists_binary(nvl, "nvlist/bool"));
+	nvlist_add_bool(nvl, "nvlist/bool", true);
+	CHECK(nvlist_error(nvl) == 0);
+	CHECK(nvlist_exists(nvl, "nvlist/bool"));
+	CHECK(!nvlist_exists_null(nvl, "nvlist/bool"));
+	CHECK(nvlist_exists_bool(nvl, "nvlist/bool"));
+	CHECK(!nvlist_exists_number(nvl, "nvlist/bool"));
+	CHECK(!nvlist_exists_string(nvl, "nvlist/bool"));
+	CHECK(!nvlist_exists_nvlist(nvl, "nvlist/bool"));
+	CHECK(!nvlist_exists_descriptor(nvl, "nvlist/bool"));
+	CHECK(!nvlist_exists_binary(nvl, "nvlist/bool"));
+
+	CHECK(!nvlist_exists(nvl, "nvlist/number"));
+	CHECK(!nvlist_exists_null(nvl, "nvlist/number"));
+	CHECK(!nvlist_exists_bool(nvl, "nvlist/number"));
+	CHECK(!nvlist_exists_number(nvl, "nvlist/number"));
+	CHECK(!nvlist_exists_string(nvl, "nvlist/number"));
+	CHECK(!nvlist_exists_nvlist(nvl, "nvlist/number"));
+	CHECK(!nvlist_exists_descriptor(nvl, "nvlist/number"));
+	CHECK(!nvlist_exists_binary(nvl, "nvlist/number"));
+	nvlist_add_number(nvl, "nvlist/number", 0);
+	CHECK(nvlist_error(nvl) == 0);
+	CHECK(nvlist_exists(nvl, "nvlist/number"));
+	CHECK(!nvlist_exists_null(nvl, "nvlist/number"));
+	CHECK(!nvlist_exists_bool(nvl, "nvlist/number"));
+	CHECK(nvlist_exists_number(nvl, "nvlist/number"));
+	CHECK(!nvlist_exists_string(nvl, "nvlist/number"));
+	CHECK(!nvlist_exists_nvlist(nvl, "nvlist/number"));
+	CHECK(!nvlist_exists_descriptor(nvl, "nvlist/number"));
+	CHECK(!nvlist_exists_binary(nvl, "nvlist/number"));
+
+	CHECK(!nvlist_exists(nvl, "nvlist/string"));
+	CHECK(!nvlist_exists_null(nvl, "nvlist/string"));
+	CHECK(!nvlist_exists_bool(nvl, "nvlist/string"));
+	CHECK(!nvlist_exists_number(nvl, "nvlist/string"));
+	CHECK(!nvlist_exists_string(nvl, "nvlist/string"));
+	CHECK(!nvlist_exists_nvlist(nvl, "nvlist/string"));
+	CHECK(!nvlist_exists_descriptor(nvl, "nvlist/string"));
+	CHECK(!nvlist_exists_binary(nvl, "nvlist/string"));
+	nvlist_add_string(nvl, "nvlist/string", "test");
+	CHECK(nvlist_error(nvl) == 0);
+	CHECK(nvlist_exists(nvl, "nvlist/string"));
+	CHECK(!nvlist_exists_null(nvl, "nvlist/string"));
+	CHECK(!nvlist_exists_bool(nvl, "nvlist/string"));
+	CHECK(!nvlist_exists_number(nvl, "nvlist/string"));
+	CHECK(nvlist_exists_string(nvl, "nvlist/string"));
+	CHECK(!nvlist_exists_nvlist(nvl, "nvlist/string"));
+	CHECK(!nvlist_exists_descriptor(nvl, "nvlist/string"));
+	CHECK(!nvlist_exists_binary(nvl, "nvlist/string"));
+
+	CHECK(!nvlist_exists(nvl, "nvlist/nvlist"));
+	CHECK(!nvlist_exists_null(nvl, "nvlist/nvlist"));
+	CHECK(!nvlist_exists_bool(nvl, "nvlist/nvlist"));
+	CHECK(!nvlist_exists_number(nvl, "nvlist/nvlist"));
+	CHECK(!nvlist_exists_string(nvl, "nvlist/nvlist"));
+	CHECK(!nvlist_exists_nvlist(nvl, "nvlist/nvlist"));
+	CHECK(!nvlist_exists_descriptor(nvl, "nvlist/nvlist"));
+	CHECK(!nvlist_exists_binary(nvl, "nvlist/nvlist"));
+	nvlist_add_nvlist(nvl, "nvlist/nvlist", nvl);
+	CHECK(nvlist_error(nvl) == 0);
+	CHECK(nvlist_exists(nvl, "nvlist/nvlist"));
+	CHECK(!nvlist_exists_null(nvl, "nvlist/nvlist"));
+	CHECK(!nvlist_exists_bool(nvl, "nvlist/nvlist"));
+	CHECK(!nvlist_exists_number(nvl, "nvlist/nvlist"));
+	CHECK(!nvlist_exists_string(nvl, "nvlist/nvlist"));
+	CHECK(nvlist_exists_nvlist(nvl, "nvlist/nvlist"));
+	CHECK(!nvlist_exists_descriptor(nvl, "nvlist/nvlist"));
+	CHECK(!nvlist_exists_binary(nvl, "nvlist/nvlist"));
+
+	CHECK(!nvlist_exists(nvl, "nvlist/descriptor"));
+	CHECK(!nvlist_exists_null(nvl, "nvlist/descriptor"));
+	CHECK(!nvlist_exists_bool(nvl, "nvlist/descriptor"));
+	CHECK(!nvlist_exists_number(nvl, "nvlist/descriptor"));
+	CHECK(!nvlist_exists_string(nvl, "nvlist/descriptor"));
+	CHECK(!nvlist_exists_nvlist(nvl, "nvlist/descriptor"));
+	CHECK(!nvlist_exists_descriptor(nvl, "nvlist/descriptor"));
+	CHECK(!nvlist_exists_binary(nvl, "nvlist/descriptor"));
+	nvlist_add_descriptor(nvl, "nvlist/descriptor", STDERR_FILENO);
+	CHECK(nvlist_error(nvl) == 0);
+	CHECK(nvlist_exists(nvl, "nvlist/descriptor"));
+	CHECK(!nvlist_exists_null(nvl, "nvlist/descriptor"));
+	CHECK(!nvlist_exists_bool(nvl, "nvlist/descriptor"));
+	CHECK(!nvlist_exists_number(nvl, "nvlist/descriptor"));
+	CHECK(!nvlist_exists_string(nvl, "nvlist/descriptor"));
+	CHECK(!nvlist_exists_nvlist(nvl, "nvlist/descriptor"));
+	CHECK(nvlist_exists_descriptor(nvl, "nvlist/descriptor"));
+	CHECK(!nvlist_exists_binary(nvl, "nvlist/descriptor"));
+
+	CHECK(!nvlist_exists(nvl, "nvlist/binary"));
+	CHECK(!nvlist_exists_null(nvl, "nvlist/binary"));
+	CHECK(!nvlist_exists_bool(nvl, "nvlist/binary"));
+	CHECK(!nvlist_exists_number(nvl, "nvlist/binary"));
+	CHECK(!nvlist_exists_string(nvl, "nvlist/binary"));
+	CHECK(!nvlist_exists_nvlist(nvl, "nvlist/binary"));
+	CHECK(!nvlist_exists_descriptor(nvl, "nvlist/binary"));
+	CHECK(!nvlist_exists_binary(nvl, "nvlist/binary"));
+	nvlist_add_binary(nvl, "nvlist/binary", "test", 4);
+	CHECK(nvlist_error(nvl) == 0);
+	CHECK(nvlist_exists(nvl, "nvlist/binary"));
+	CHECK(!nvlist_exists_null(nvl, "nvlist/binary"));
+	CHECK(!nvlist_exists_bool(nvl, "nvlist/binary"));
+	CHECK(!nvlist_exists_number(nvl, "nvlist/binary"));
+	CHECK(!nvlist_exists_string(nvl, "nvlist/binary"));
+	CHECK(!nvlist_exists_nvlist(nvl, "nvlist/binary"));
+	CHECK(!nvlist_exists_descriptor(nvl, "nvlist/binary"));
+	CHECK(nvlist_exists_binary(nvl, "nvlist/binary"));
+
+	CHECK(nvlist_exists(nvl, "nvlist/null"));
+	CHECK(nvlist_exists(nvl, "nvlist/bool"));
+	CHECK(nvlist_exists(nvl, "nvlist/number"));
+	CHECK(nvlist_exists(nvl, "nvlist/string"));
+	CHECK(nvlist_exists(nvl, "nvlist/nvlist"));
+	CHECK(nvlist_exists(nvl, "nvlist/descriptor"));
+	CHECK(nvlist_exists(nvl, "nvlist/binary"));
+	CHECK(nvlist_exists_null(nvl, "nvlist/null"));
+	CHECK(nvlist_exists_bool(nvl, "nvlist/bool"));
+	CHECK(nvlist_exists_number(nvl, "nvlist/number"));
+	CHECK(nvlist_exists_string(nvl, "nvlist/string"));
+	CHECK(nvlist_exists_nvlist(nvl, "nvlist/nvlist"));
+	CHECK(nvlist_exists_descriptor(nvl, "nvlist/descriptor"));
+	CHECK(nvlist_exists_binary(nvl, "nvlist/binary"));
+
+	nvlist_free_null(nvl, "nvlist/null");
+	CHECK(!nvlist_exists(nvl, "nvlist/null"));
+	CHECK(nvlist_exists(nvl, "nvlist/bool"));
+	CHECK(nvlist_exists(nvl, "nvlist/number"));
+	CHECK(nvlist_exists(nvl, "nvlist/string"));
+	CHECK(nvlist_exists(nvl, "nvlist/nvlist"));
+	CHECK(nvlist_exists(nvl, "nvlist/descriptor"));
+	CHECK(nvlist_exists(nvl, "nvlist/binary"));
+	CHECK(!nvlist_exists_null(nvl, "nvlist/null"));
+	CHECK(nvlist_exists_bool(nvl, "nvlist/bool"));
+	CHECK(nvlist_exists_number(nvl, "nvlist/number"));
+	CHECK(nvlist_exists_string(nvl, "nvlist/string"));
+	CHECK(nvlist_exists_nvlist(nvl, "nvlist/nvlist"));
+	CHECK(nvlist_exists_descriptor(nvl, "nvlist/descriptor"));
+	CHECK(nvlist_exists_binary(nvl, "nvlist/binary"));
+
+	nvlist_free_bool(nvl, "nvlist/bool");
+	CHECK(!nvlist_exists(nvl, "nvlist/null"));
+	CHECK(!nvlist_exists(nvl, "nvlist/bool"));
+	CHECK(nvlist_exists(nvl, "nvlist/number"));
+	CHECK(nvlist_exists(nvl, "nvlist/string"));
+	CHECK(nvlist_exists(nvl, "nvlist/nvlist"));
+	CHECK(nvlist_exists(nvl, "nvlist/descriptor"));
+	CHECK(nvlist_exists(nvl, "nvlist/binary"));
+	CHECK(!nvlist_exists_null(nvl, "nvlist/null"));
+	CHECK(!nvlist_exists_bool(nvl, "nvlist/bool"));
+	CHECK(nvlist_exists_number(nvl, "nvlist/number"));
+	CHECK(nvlist_exists_string(nvl, "nvlist/string"));
+	CHECK(nvlist_exists_nvlist(nvl, "nvlist/nvlist"));
+	CHECK(nvlist_exists_descriptor(nvl, "nvlist/descriptor"));
+	CHECK(nvlist_exists_binary(nvl, "nvlist/binary"));
+
+	nvlist_free_number(nvl, "nvlist/number");
+	CHECK(!nvlist_exists(nvl, "nvlist/null"));
+	CHECK(!nvlist_exists(nvl, "nvlist/bool"));
+	CHECK(!nvlist_exists(nvl, "nvlist/number"));
+	CHECK(nvlist_exists(nvl, "nvlist/string"));
+	CHECK(nvlist_exists(nvl, "nvlist/nvlist"));
+	CHECK(nvlist_exists(nvl, "nvlist/descriptor"));
+	CHECK(nvlist_exists(nvl, "nvlist/binary"));
+	CHECK(!nvlist_exists_null(nvl, "nvlist/null"));
+	CHECK(!nvlist_exists_bool(nvl, "nvlist/bool"));
+	CHECK(!nvlist_exists_number(nvl, "nvlist/number"));
+	CHECK(nvlist_exists_string(nvl, "nvlist/string"));
+	CHECK(nvlist_exists_nvlist(nvl, "nvlist/nvlist"));
+	CHECK(nvlist_exists_descriptor(nvl, "nvlist/descriptor"));
+	CHECK(nvlist_exists_binary(nvl, "nvlist/binary"));
+
+	nvlist_free_string(nvl, "nvlist/string");
+	CHECK(!nvlist_exists(nvl, "nvlist/null"));
+	CHECK(!nvlist_exists(nvl, "nvlist/bool"));
+	CHECK(!nvlist_exists(nvl, "nvlist/number"));
+	CHECK(!nvlist_exists(nvl, "nvlist/string"));
+	CHECK(nvlist_exists(nvl, "nvlist/nvlist"));
+	CHECK(nvlist_exists(nvl, "nvlist/descriptor"));
+	CHECK(nvlist_exists(nvl, "nvlist/binary"));
+	CHECK(!nvlist_exists_null(nvl, "nvlist/null"));
+	CHECK(!nvlist_exists_bool(nvl, "nvlist/bool"));
+	CHECK(!nvlist_exists_number(nvl, "nvlist/number"));
+	CHECK(!nvlist_exists_string(nvl, "nvlist/string"));
+	CHECK(nvlist_exists_nvlist(nvl, "nvlist/nvlist"));
+	CHECK(nvlist_exists_descriptor(nvl, "nvlist/descriptor"));
+	CHECK(nvlist_exists_binary(nvl, "nvlist/binary"));
+
+	nvlist_free_nvlist(nvl, "nvlist/nvlist");
+	CHECK(!nvlist_exists(nvl, "nvlist/null"));
+	CHECK(!nvlist_exists(nvl, "nvlist/bool"));
+	CHECK(!nvlist_exists(nvl, "nvlist/number"));
+	CHECK(!nvlist_exists(nvl, "nvlist/string"));
+	CHECK(!nvlist_exists(nvl, "nvlist/nvlist"));
+	CHECK(nvlist_exists(nvl, "nvlist/descriptor"));
+	CHECK(nvlist_exists(nvl, "nvlist/binary"));
+	CHECK(!nvlist_exists_null(nvl, "nvlist/null"));
+	CHECK(!nvlist_exists_bool(nvl, "nvlist/bool"));
+	CHECK(!nvlist_exists_number(nvl, "nvlist/number"));
+	CHECK(!nvlist_exists_string(nvl, "nvlist/string"));
+	CHECK(!nvlist_exists_nvlist(nvl, "nvlist/nvlist"));
+	CHECK(nvlist_exists_descriptor(nvl, "nvlist/descriptor"));
+	CHECK(nvlist_exists_binary(nvl, "nvlist/binary"));
+
+	nvlist_free_descriptor(nvl, "nvlist/descriptor");
+	CHECK(!nvlist_exists(nvl, "nvlist/null"));
+	CHECK(!nvlist_exists(nvl, "nvlist/bool"));
+	CHECK(!nvlist_exists(nvl, "nvlist/number"));
+	CHECK(!nvlist_exists(nvl, "nvlist/string"));
+	CHECK(!nvlist_exists(nvl, "nvlist/nvlist"));
+	CHECK(!nvlist_exists(nvl, "nvlist/descriptor"));
+	CHECK(nvlist_exists(nvl, "nvlist/binary"));
+	CHECK(!nvlist_exists_null(nvl, "nvlist/null"));
+	CHECK(!nvlist_exists_bool(nvl, "nvlist/bool"));
+	CHECK(!nvlist_exists_number(nvl, "nvlist/number"));
+	CHECK(!nvlist_exists_string(nvl, "nvlist/string"));
+	CHECK(!nvlist_exists_nvlist(nvl, "nvlist/nvlist"));
+	CHECK(!nvlist_exists_descriptor(nvl, "nvlist/descriptor"));
+	CHECK(nvlist_exists_binary(nvl, "nvlist/binary"));
+
+	nvlist_free_binary(nvl, "nvlist/binary");
+	CHECK(!nvlist_exists(nvl, "nvlist/null"));
+	CHECK(!nvlist_exists(nvl, "nvlist/bool"));
+	CHECK(!nvlist_exists(nvl, "nvlist/number"));
+	CHECK(!nvlist_exists(nvl, "nvlist/string"));
+	CHECK(!nvlist_exists(nvl, "nvlist/nvlist"));
+	CHECK(!nvlist_exists(nvl, "nvlist/descriptor"));
+	CHECK(!nvlist_exists(nvl, "nvlist/binary"));
+	CHECK(!nvlist_exists_null(nvl, "nvlist/null"));
+	CHECK(!nvlist_exists_bool(nvl, "nvlist/bool"));
+	CHECK(!nvlist_exists_number(nvl, "nvlist/number"));
+	CHECK(!nvlist_exists_string(nvl, "nvlist/string"));
+	CHECK(!nvlist_exists_nvlist(nvl, "nvlist/nvlist"));
+	CHECK(!nvlist_exists_descriptor(nvl, "nvlist/descriptor"));
+	CHECK(!nvlist_exists_binary(nvl, "nvlist/binary"));
+
+	CHECK(nvlist_empty(nvl));
+
+	nvlist_destroy(nvl);
+
+	return (0);
+}
diff --git a/tools/regression/lib/libnv/nvlist_free.c b/tools/regression/lib/libnv/nvlist_free.c
new file mode 100644
index 000000000000..4417a4464974
--- /dev/null
+++ b/tools/regression/lib/libnv/nvlist_free.c
@@ -0,0 +1,221 @@
+/*-
+ * Copyright (c) 2013 The FreeBSD Foundation
+ * All rights reserved.
+ *
+ * This software was developed by Pawel Jakub Dawidek under sponsorship from
+ * the FreeBSD Foundation.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#include <stdio.h>
+#include <unistd.h>
+
+#include <nv.h>
+
+static int ntest = 1;
+
+#define	CHECK(expr)	do {						\
+	if ((expr))							\
+		printf("ok # %d %s:%u\n", ntest, __FILE__, __LINE__);	\
+	else								\
+		printf("not ok # %d %s:%u\n", ntest, __FILE__, __LINE__);\
+	ntest++;							\
+} while (0)
+
+int
+main(void)
+{
+	nvlist_t *nvl;
+
+	printf("1..114\n");
+
+	nvl = nvlist_create(0);
+
+	nvlist_add_null(nvl, "nvlist/null");
+	nvlist_add_bool(nvl, "nvlist/bool", true);
+	nvlist_add_number(nvl, "nvlist/number", 0);
+	nvlist_add_string(nvl, "nvlist/string", "test");
+	nvlist_add_nvlist(nvl, "nvlist/nvlist", nvl);
+	nvlist_add_descriptor(nvl, "nvlist/descriptor", STDERR_FILENO);
+	nvlist_add_binary(nvl, "nvlist/binary", "test", 4);
+
+	CHECK(nvlist_exists_null(nvl, "nvlist/null"));
+	CHECK(nvlist_exists_bool(nvl, "nvlist/bool"));
+	CHECK(nvlist_exists_number(nvl, "nvlist/number"));
+	CHECK(nvlist_exists_string(nvl, "nvlist/string"));
+	CHECK(nvlist_exists_nvlist(nvl, "nvlist/nvlist"));
+	CHECK(nvlist_exists_descriptor(nvl, "nvlist/descriptor"));
+	CHECK(nvlist_exists_binary(nvl, "nvlist/binary"));
+
+	nvlist_free_null(nvl, "nvlist/null");
+	CHECK(!nvlist_exists_null(nvl, "nvlist/null"));
+	CHECK(nvlist_exists_bool(nvl, "nvlist/bool"));
+	CHECK(nvlist_exists_number(nvl, "nvlist/number"));
+	CHECK(nvlist_exists_string(nvl, "nvlist/string"));
+	CHECK(nvlist_exists_nvlist(nvl, "nvlist/nvlist"));
+	CHECK(nvlist_exists_descriptor(nvl, "nvlist/descriptor"));
+	CHECK(nvlist_exists_binary(nvl, "nvlist/binary"));
+
+	nvlist_free_bool(nvl, "nvlist/bool");
+	CHECK(!nvlist_exists_null(nvl, "nvlist/null"));
+	CHECK(!nvlist_exists_bool(nvl, "nvlist/bool"));
+	CHECK(nvlist_exists_number(nvl, "nvlist/number"));
+	CHECK(nvlist_exists_string(nvl, "nvlist/string"));
+	CHECK(nvlist_exists_nvlist(nvl, "nvlist/nvlist"));
+	CHECK(nvlist_exists_descriptor(nvl, "nvlist/descriptor"));
+	CHECK(nvlist_exists_binary(nvl, "nvlist/binary"));
+
+	nvlist_free_number(nvl, "nvlist/number");
+	CHECK(!nvlist_exists_null(nvl, "nvlist/null"));
+	CHECK(!nvlist_exists_bool(nvl, "nvlist/bool"));
+	CHECK(!nvlist_exists_number(nvl, "nvlist/number"));
+	CHECK(nvlist_exists_string(nvl, "nvlist/string"));
+	CHECK(nvlist_exists_nvlist(nvl, "nvlist/nvlist"));
+	CHECK(nvlist_exists_descriptor(nvl, "nvlist/descriptor"));
+	CHECK(nvlist_exists_binary(nvl, "nvlist/binary"));
+
+	nvlist_free_string(nvl, "nvlist/string");
+	CHECK(!nvlist_exists_null(nvl, "nvlist/null"));
+	CHECK(!nvlist_exists_bool(nvl, "nvlist/bool"));
+	CHECK(!nvlist_exists_number(nvl, "nvlist/number"));
+	CHECK(!nvlist_exists_string(nvl, "nvlist/string"));
+	CHECK(nvlist_exists_nvlist(nvl, "nvlist/nvlist"));
+	CHECK(nvlist_exists_descriptor(nvl, "nvlist/descriptor"));
+	CHECK(nvlist_exists_binary(nvl, "nvlist/binary"));
+
+	nvlist_free_nvlist(nvl, "nvlist/nvlist");
+	CHECK(!nvlist_exists_null(nvl, "nvlist/null"));
+	CHECK(!nvlist_exists_bool(nvl, "nvlist/bool"));
+	CHECK(!nvlist_exists_number(nvl, "nvlist/number"));
+	CHECK(!nvlist_exists_string(nvl, "nvlist/string"));
+	CHECK(!nvlist_exists_nvlist(nvl, "nvlist/nvlist"));
+	CHECK(nvlist_exists_descriptor(nvl, "nvlist/descriptor"));
+	CHECK(nvlist_exists_binary(nvl, "nvlist/binary"));
+
+	nvlist_free_descriptor(nvl, "nvlist/descriptor");
+	CHECK(!nvlist_exists_null(nvl, "nvlist/null"));
+	CHECK(!nvlist_exists_bool(nvl, "nvlist/bool"));
+	CHECK(!nvlist_exists_number(nvl, "nvlist/number"));
+	CHECK(!nvlist_exists_string(nvl, "nvlist/string"));
+	CHECK(!nvlist_exists_nvlist(nvl, "nvlist/nvlist"));
+	CHECK(!nvlist_exists_descriptor(nvl, "nvlist/descriptor"));
+	CHECK(nvlist_exists_binary(nvl, "nvlist/binary"));
+
+	nvlist_free_binary(nvl, "nvlist/binary");
+	CHECK(!nvlist_exists_null(nvl, "nvlist/null"));
+	CHECK(!nvlist_exists_bool(nvl, "nvlist/bool"));
+	CHECK(!nvlist_exists_number(nvl, "nvlist/number"));
+	CHECK(!nvlist_exists_string(nvl, "nvlist/string"));
+	CHECK(!nvlist_exists_nvlist(nvl, "nvlist/nvlist"));
+	CHECK(!nvlist_exists_descriptor(nvl, "nvlist/descriptor"));
+	CHECK(!nvlist_exists_binary(nvl, "nvlist/binary"));
+
+	CHECK(nvlist_empty(nvl));
+
+	nvlist_add_null(nvl, "nvlist/null");
+	nvlist_add_bool(nvl, "nvlist/bool", true);
+	nvlist_add_number(nvl, "nvlist/number", 0);
+	nvlist_add_string(nvl, "nvlist/string", "test");
+	nvlist_add_nvlist(nvl, "nvlist/nvlist", nvl);
+	nvlist_add_descriptor(nvl, "nvlist/descriptor", STDERR_FILENO);
+	nvlist_add_binary(nvl, "nvlist/binary", "test", 4);
+
+	CHECK(nvlist_exists_null(nvl, "nvlist/null"));
+	CHECK(nvlist_exists_bool(nvl, "nvlist/bool"));
+	CHECK(nvlist_exists_number(nvl, "nvlist/number"));
+	CHECK(nvlist_exists_string(nvl, "nvlist/string"));
+	CHECK(nvlist_exists_nvlist(nvl, "nvlist/nvlist"));
+	CHECK(nvlist_exists_descriptor(nvl, "nvlist/descriptor"));
+	CHECK(nvlist_exists_binary(nvl, "nvlist/binary"));
+
+	nvlist_free(nvl, "nvlist/null");
+	CHECK(!nvlist_exists_null(nvl, "nvlist/null"));
+	CHECK(nvlist_exists_bool(nvl, "nvlist/bool"));
+	CHECK(nvlist_exists_number(nvl, "nvlist/number"));
+	CHECK(nvlist_exists_string(nvl, "nvlist/string"));
+	CHECK(nvlist_exists_nvlist(nvl, "nvlist/nvlist"));
+	CHECK(nvlist_exists_descriptor(nvl, "nvlist/descriptor"));
+	CHECK(nvlist_exists_binary(nvl, "nvlist/binary"));
+
+	nvlist_free(nvl, "nvlist/bool");
+	CHECK(!nvlist_exists_null(nvl, "nvlist/null"));
+	CHECK(!nvlist_exists_bool(nvl, "nvlist/bool"));
+	CHECK(nvlist_exists_number(nvl, "nvlist/number"));
+	CHECK(nvlist_exists_string(nvl, "nvlist/string"));
+	CHECK(nvlist_exists_nvlist(nvl, "nvlist/nvlist"));
+	CHECK(nvlist_exists_descriptor(nvl, "nvlist/descriptor"));
+	CHECK(nvlist_exists_binary(nvl, "nvlist/binary"));
+
+	nvlist_free(nvl, "nvlist/number");
+	CHECK(!nvlist_exists_null(nvl, "nvlist/null"));
+	CHECK(!nvlist_exists_bool(nvl, "nvlist/bool"));
+	CHECK(!nvlist_exists_number(nvl, "nvlist/number"));
+	CHECK(nvlist_exists_string(nvl, "nvlist/string"));
+	CHECK(nvlist_exists_nvlist(nvl, "nvlist/nvlist"));
+	CHECK(nvlist_exists_descriptor(nvl, "nvlist/descriptor"));
+	CHECK(nvlist_exists_binary(nvl, "nvlist/binary"));
+
+	nvlist_free(nvl, "nvlist/string");
+	CHECK(!nvlist_exists_null(nvl, "nvlist/null"));
+	CHECK(!nvlist_exists_bool(nvl, "nvlist/bool"));
+	CHECK(!nvlist_exists_number(nvl, "nvlist/number"));
+	CHECK(!nvlist_exists_string(nvl, "nvlist/string"));
+	CHECK(nvlist_exists_nvlist(nvl, "nvlist/nvlist"));
+	CHECK(nvlist_exists_descriptor(nvl, "nvlist/descriptor"));
+	CHECK(nvlist_exists_binary(nvl, "nvlist/binary"));
+
+	nvlist_free(nvl, "nvlist/nvlist");
+	CHECK(!nvlist_exists_null(nvl, "nvlist/null"));
+	CHECK(!nvlist_exists_bool(nvl, "nvlist/bool"));
+	CHECK(!nvlist_exists_number(nvl, "nvlist/number"));
+	CHECK(!nvlist_exists_string(nvl, "nvlist/string"));
+	CHECK(!nvlist_exists_nvlist(nvl, "nvlist/nvlist"));
+	CHECK(nvlist_exists_descriptor(nvl, "nvlist/descriptor"));
+	CHECK(nvlist_exists_binary(nvl, "nvlist/binary"));
+
+	nvlist_free(nvl, "nvlist/descriptor");
+	CHECK(!nvlist_exists_null(nvl, "nvlist/null"));
+	CHECK(!nvlist_exists_bool(nvl, "nvlist/bool"));
+	CHECK(!nvlist_exists_number(nvl, "nvlist/number"));
+	CHECK(!nvlist_exists_string(nvl, "nvlist/string"));
+	CHECK(!nvlist_exists_nvlist(nvl, "nvlist/nvlist"));
+	CHECK(!nvlist_exists_descriptor(nvl, "nvlist/descriptor"));
+	CHECK(nvlist_exists_binary(nvl, "nvlist/binary"));
+
+	nvlist_free(nvl, "nvlist/binary");
+	CHECK(!nvlist_exists_null(nvl, "nvlist/null"));
+	CHECK(!nvlist_exists_bool(nvl, "nvlist/bool"));
+	CHECK(!nvlist_exists_number(nvl, "nvlist/number"));
+	CHECK(!nvlist_exists_string(nvl, "nvlist/string"));
+	CHECK(!nvlist_exists_nvlist(nvl, "nvlist/nvlist"));
+	CHECK(!nvlist_exists_descriptor(nvl, "nvlist/descriptor"));
+	CHECK(!nvlist_exists_binary(nvl, "nvlist/binary"));
+
+	CHECK(nvlist_empty(nvl));
+
+	nvlist_destroy(nvl);
+
+	return (0);
+}
diff --git a/tools/regression/lib/libnv/nvlist_get.c b/tools/regression/lib/libnv/nvlist_get.c
new file mode 100644
index 000000000000..b4468db88b11
--- /dev/null
+++ b/tools/regression/lib/libnv/nvlist_get.c
@@ -0,0 +1,182 @@
+/*-
+ * Copyright (c) 2013 The FreeBSD Foundation
+ * All rights reserved.
+ *
+ * This software was developed by Pawel Jakub Dawidek under sponsorship from
+ * the FreeBSD Foundation.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <nv.h>
+
+static int ntest = 1;
+
+#define	CHECK(expr)	do {						\
+	if ((expr))							\
+		printf("ok # %d %s:%u\n", ntest, __FILE__, __LINE__);	\
+	else								\
+		printf("not ok # %d %s:%u\n", ntest, __FILE__, __LINE__);\
+	ntest++;							\
+} while (0)
+
+#define	fd_is_valid(fd)	(fcntl((fd), F_GETFL) != -1 || errno != EBADF)
+
+int
+main(void)
+{
+	const nvlist_t *cnvl;
+	nvlist_t *nvl;
+	size_t size;
+
+	printf("1..83\n");
+
+	nvl = nvlist_create(0);
+
+	CHECK(!nvlist_exists_bool(nvl, "nvlist/bool/true"));
+	nvlist_add_bool(nvl, "nvlist/bool/true", true);
+	CHECK(nvlist_error(nvl) == 0);
+	CHECK(nvlist_get_bool(nvl, "nvlist/bool/true") == true);
+
+	CHECK(!nvlist_exists_bool(nvl, "nvlist/bool/false"));
+	nvlist_add_bool(nvl, "nvlist/bool/false", false);
+	CHECK(nvlist_error(nvl) == 0);
+	CHECK(nvlist_get_bool(nvl, "nvlist/bool/false") == false);
+
+	CHECK(!nvlist_exists_number(nvl, "nvlist/number/0"));
+	nvlist_add_number(nvl, "nvlist/number/0", 0);
+	CHECK(nvlist_error(nvl) == 0);
+	CHECK(nvlist_get_number(nvl, "nvlist/number/0") == 0);
+
+	CHECK(!nvlist_exists_number(nvl, "nvlist/number/1"));
+	nvlist_add_number(nvl, "nvlist/number/1", 1);
+	CHECK(nvlist_error(nvl) == 0);
+	CHECK(nvlist_get_number(nvl, "nvlist/number/1") == 1);
+
+	CHECK(!nvlist_exists_number(nvl, "nvlist/number/-1"));
+	nvlist_add_number(nvl, "nvlist/number/-1", -1);
+	CHECK(nvlist_error(nvl) == 0);
+	CHECK((int)nvlist_get_number(nvl, "nvlist/number/-1") == -1);
+
+	CHECK(!nvlist_exists_number(nvl, "nvlist/number/UINT64_MAX"));
+	nvlist_add_number(nvl, "nvlist/number/UINT64_MAX", UINT64_MAX);
+	CHECK(nvlist_error(nvl) == 0);
+	CHECK(nvlist_get_number(nvl, "nvlist/number/UINT64_MAX") == UINT64_MAX);
+
+	CHECK(!nvlist_exists_number(nvl, "nvlist/number/INT64_MIN"));
+	nvlist_add_number(nvl, "nvlist/number/INT64_MIN", INT64_MIN);
+	CHECK(nvlist_error(nvl) == 0);
+	CHECK((int64_t)nvlist_get_number(nvl, "nvlist/number/INT64_MIN") == INT64_MIN);
+
+	CHECK(!nvlist_exists_number(nvl, "nvlist/number/INT64_MAX"));
+	nvlist_add_number(nvl, "nvlist/number/INT64_MAX", INT64_MAX);
+	CHECK(nvlist_error(nvl) == 0);
+	CHECK((int64_t)nvlist_get_number(nvl, "nvlist/number/INT64_MAX") == INT64_MAX);
+
+	CHECK(!nvlist_exists_string(nvl, "nvlist/string/"));
+	nvlist_add_string(nvl, "nvlist/string/", "");
+	CHECK(nvlist_error(nvl) == 0);
+	CHECK(strcmp(nvlist_get_string(nvl, "nvlist/string/"), "") == 0);
+
+	CHECK(!nvlist_exists_string(nvl, "nvlist/string/x"));
+	nvlist_add_string(nvl, "nvlist/string/x", "x");
+	CHECK(nvlist_error(nvl) == 0);
+	CHECK(strcmp(nvlist_get_string(nvl, "nvlist/string/x"), "x") == 0);
+
+	CHECK(!nvlist_exists_string(nvl, "nvlist/string/abcdefghijklmnopqrstuvwxyz"));
+	nvlist_add_string(nvl, "nvlist/string/abcdefghijklmnopqrstuvwxyz", "abcdefghijklmnopqrstuvwxyz");
+	CHECK(nvlist_error(nvl) == 0);
+	CHECK(strcmp(nvlist_get_string(nvl, "nvlist/string/abcdefghijklmnopqrstuvwxyz"), "abcdefghijklmnopqrstuvwxyz") == 0);
+
+	CHECK(!nvlist_exists_descriptor(nvl, "nvlist/descriptor/STDERR_FILENO"));
+	nvlist_add_descriptor(nvl, "nvlist/descriptor/STDERR_FILENO", STDERR_FILENO);
+	CHECK(nvlist_error(nvl) == 0);
+	CHECK(fd_is_valid(nvlist_get_descriptor(nvl, "nvlist/descriptor/STDERR_FILENO")));
+
+	CHECK(!nvlist_exists_binary(nvl, "nvlist/binary/x"));
+	nvlist_add_binary(nvl, "nvlist/binary/x", "x", 1);
+	CHECK(nvlist_error(nvl) == 0);
+	CHECK(memcmp(nvlist_get_binary(nvl, "nvlist/binary/x", NULL), "x", 1) == 0);
+	CHECK(memcmp(nvlist_get_binary(nvl, "nvlist/binary/x", &size), "x", 1) == 0);
+	CHECK(size == 1);
+
+	CHECK(!nvlist_exists_binary(nvl, "nvlist/binary/abcdefghijklmnopqrstuvwxyz"));
+	nvlist_add_binary(nvl, "nvlist/binary/abcdefghijklmnopqrstuvwxyz", "abcdefghijklmnopqrstuvwxyz", sizeof("abcdefghijklmnopqrstuvwxyz"));
+	CHECK(nvlist_error(nvl) == 0);
+	CHECK(memcmp(nvlist_get_binary(nvl, "nvlist/binary/abcdefghijklmnopqrstuvwxyz", NULL), "abcdefghijklmnopqrstuvwxyz", sizeof("abcdefghijklmnopqrstuvwxyz")) == 0);
+	CHECK(memcmp(nvlist_get_binary(nvl, "nvlist/binary/abcdefghijklmnopqrstuvwxyz", &size), "abcdefghijklmnopqrstuvwxyz", sizeof("abcdefghijklmnopqrstuvwxyz")) == 0);
+	CHECK(size == sizeof("abcdefghijklmnopqrstuvwxyz"));
+
+	CHECK(!nvlist_exists_nvlist(nvl, "nvlist/nvlist"));
+	nvlist_add_nvlist(nvl, "nvlist/nvlist", nvl);
+	CHECK(nvlist_error(nvl) == 0);
+	cnvl = nvlist_get_nvlist(nvl, "nvlist/nvlist");
+	CHECK(nvlist_get_bool(cnvl, "nvlist/bool/true") == true);
+	CHECK(nvlist_get_bool(cnvl, "nvlist/bool/false") == false);
+	CHECK(nvlist_get_number(cnvl, "nvlist/number/0") == 0);
+	CHECK(nvlist_get_number(cnvl, "nvlist/number/1") == 1);
+	CHECK((int)nvlist_get_number(cnvl, "nvlist/number/-1") == -1);
+	CHECK(nvlist_get_number(cnvl, "nvlist/number/UINT64_MAX") == UINT64_MAX);
+	CHECK((int64_t)nvlist_get_number(cnvl, "nvlist/number/INT64_MIN") == INT64_MIN);
+	CHECK((int64_t)nvlist_get_number(cnvl, "nvlist/number/INT64_MAX") == INT64_MAX);
+	CHECK(strcmp(nvlist_get_string(cnvl, "nvlist/string/"), "") == 0);
+	CHECK(strcmp(nvlist_get_string(cnvl, "nvlist/string/x"), "x") == 0);
+	CHECK(strcmp(nvlist_get_string(cnvl, "nvlist/string/abcdefghijklmnopqrstuvwxyz"), "abcdefghijklmnopqrstuvwxyz") == 0);
+	/* TODO */
+	CHECK(memcmp(nvlist_get_binary(cnvl, "nvlist/binary/x", NULL), "x", 1) == 0);
+	CHECK(memcmp(nvlist_get_binary(cnvl, "nvlist/binary/x", &size), "x", 1) == 0);
+	CHECK(size == 1);
+	CHECK(memcmp(nvlist_get_binary(cnvl, "nvlist/binary/abcdefghijklmnopqrstuvwxyz", NULL), "abcdefghijklmnopqrstuvwxyz", sizeof("abcdefghijklmnopqrstuvwxyz")) == 0);
+	CHECK(memcmp(nvlist_get_binary(cnvl, "nvlist/binary/abcdefghijklmnopqrstuvwxyz", &size), "abcdefghijklmnopqrstuvwxyz", sizeof("abcdefghijklmnopqrstuvwxyz")) == 0);
+	CHECK(size == sizeof("abcdefghijklmnopqrstuvwxyz"));
+
+	CHECK(nvlist_get_bool(nvl, "nvlist/bool/true") == true);
+	CHECK(nvlist_get_bool(nvl, "nvlist/bool/false") == false);
+	CHECK(nvlist_get_number(nvl, "nvlist/number/0") == 0);
+	CHECK(nvlist_get_number(nvl, "nvlist/number/1") == 1);
+	CHECK((int)nvlist_get_number(nvl, "nvlist/number/-1") == -1);
+	CHECK(nvlist_get_number(nvl, "nvlist/number/UINT64_MAX") == UINT64_MAX);
+	CHECK((int64_t)nvlist_get_number(nvl, "nvlist/number/INT64_MIN") == INT64_MIN);
+	CHECK((int64_t)nvlist_get_number(nvl, "nvlist/number/INT64_MAX") == INT64_MAX);
+	CHECK(strcmp(nvlist_get_string(nvl, "nvlist/string/"), "") == 0);
+	CHECK(strcmp(nvlist_get_string(nvl, "nvlist/string/x"), "x") == 0);
+	CHECK(strcmp(nvlist_get_string(nvl, "nvlist/string/abcdefghijklmnopqrstuvwxyz"), "abcdefghijklmnopqrstuvwxyz") == 0);
+	CHECK(fd_is_valid(nvlist_get_descriptor(nvl, "nvlist/descriptor/STDERR_FILENO")));
+	CHECK(memcmp(nvlist_get_binary(nvl, "nvlist/binary/x", NULL), "x", 1) == 0);
+	CHECK(memcmp(nvlist_get_binary(nvl, "nvlist/binary/x", &size), "x", 1) == 0);
+	CHECK(size == 1);
+	CHECK(memcmp(nvlist_get_binary(nvl, "nvlist/binary/abcdefghijklmnopqrstuvwxyz", NULL), "abcdefghijklmnopqrstuvwxyz", sizeof("abcdefghijklmnopqrstuvwxyz")) == 0);
+	CHECK(memcmp(nvlist_get_binary(nvl, "nvlist/binary/abcdefghijklmnopqrstuvwxyz", &size), "abcdefghijklmnopqrstuvwxyz", sizeof("abcdefghijklmnopqrstuvwxyz")) == 0);
+	CHECK(size == sizeof("abcdefghijklmnopqrstuvwxyz"));
+
+	nvlist_destroy(nvl);
+
+	return (0);
+}
diff --git a/tools/regression/lib/libnv/nvlist_move.c b/tools/regression/lib/libnv/nvlist_move.c
new file mode 100644
index 000000000000..760399da2631
--- /dev/null
+++ b/tools/regression/lib/libnv/nvlist_move.c
@@ -0,0 +1,161 @@
+/*-
+ * Copyright (c) 2013 The FreeBSD Foundation
+ * All rights reserved.
+ *
+ * This software was developed by Pawel Jakub Dawidek under sponsorship from
+ * the FreeBSD Foundation.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <nv.h>
+
+static int ntest = 1;
+
+#define	CHECK(expr)	do {						\
+	if ((expr))							\
+		printf("ok # %d %s:%u\n", ntest, __FILE__, __LINE__);	\
+	else								\
+		printf("not ok # %d %s:%u\n", ntest, __FILE__, __LINE__);\
+	ntest++;							\
+} while (0)
+
+int
+main(void)
+{
+	const nvlist_t *cnvl;
+	nvlist_t *nvl;
+	void *ptr;
+	size_t size;
+	int fd;
+
+	printf("1..52\n");
+
+	nvl = nvlist_create(0);
+
+	CHECK(!nvlist_exists_string(nvl, "nvlist/string/"));
+	ptr = strdup("");
+	CHECK(ptr != NULL);
+	nvlist_move_string(nvl, "nvlist/string/", ptr);
+	CHECK(nvlist_error(nvl) == 0);
+	CHECK(nvlist_exists_string(nvl, "nvlist/string/"));
+	CHECK(ptr == nvlist_get_string(nvl, "nvlist/string/"));
+
+	CHECK(!nvlist_exists_string(nvl, "nvlist/string/x"));
+	ptr = strdup("x");
+	CHECK(ptr != NULL);
+	nvlist_move_string(nvl, "nvlist/string/x", ptr);
+	CHECK(nvlist_error(nvl) == 0);
+	CHECK(nvlist_exists_string(nvl, "nvlist/string/x"));
+	CHECK(ptr == nvlist_get_string(nvl, "nvlist/string/x"));
+
+	CHECK(!nvlist_exists_string(nvl,
+	    "nvlist/string/abcdefghijklmnopqrstuvwxyz"));
+	ptr = strdup("abcdefghijklmnopqrstuvwxyz");
+	CHECK(ptr != NULL);
+	nvlist_move_string(nvl, "nvlist/string/abcdefghijklmnopqrstuvwxyz",
+	    ptr);
+	CHECK(nvlist_error(nvl) == 0);
+	CHECK(nvlist_exists_string(nvl,
+	    "nvlist/string/abcdefghijklmnopqrstuvwxyz"));
+	CHECK(ptr ==
+	    nvlist_get_string(nvl, "nvlist/string/abcdefghijklmnopqrstuvwxyz"));
+
+	CHECK(!nvlist_exists_descriptor(nvl,
+	    "nvlist/descriptor/STDERR_FILENO"));
+	fd = dup(STDERR_FILENO);
+	CHECK(fd >= 0);
+	nvlist_move_descriptor(nvl, "nvlist/descriptor/STDERR_FILENO", fd);
+	CHECK(nvlist_error(nvl) == 0);
+	CHECK(nvlist_exists_descriptor(nvl, "nvlist/descriptor/STDERR_FILENO"));
+	CHECK(fd ==
+	    nvlist_get_descriptor(nvl, "nvlist/descriptor/STDERR_FILENO"));
+
+	CHECK(!nvlist_exists_binary(nvl, "nvlist/binary/x"));
+	ptr = malloc(1);
+	CHECK(ptr != NULL);
+	memcpy(ptr, "x", 1);
+	nvlist_move_binary(nvl, "nvlist/binary/x", ptr, 1);
+	CHECK(nvlist_error(nvl) == 0);
+	CHECK(nvlist_exists_binary(nvl, "nvlist/binary/x"));
+	CHECK(ptr == nvlist_get_binary(nvl, "nvlist/binary/x", NULL));
+	CHECK(ptr == nvlist_get_binary(nvl, "nvlist/binary/x", &size));
+	CHECK(size == 1);
+
+	CHECK(!nvlist_exists_binary(nvl,
+	    "nvlist/binary/abcdefghijklmnopqrstuvwxyz"));
+	ptr = malloc(sizeof("abcdefghijklmnopqrstuvwxyz"));
+	CHECK(ptr != NULL);
+	memcpy(ptr, "abcdefghijklmnopqrstuvwxyz",
+	    sizeof("abcdefghijklmnopqrstuvwxyz"));
+	nvlist_move_binary(nvl, "nvlist/binary/abcdefghijklmnopqrstuvwxyz",
+	    ptr, sizeof("abcdefghijklmnopqrstuvwxyz"));
+	CHECK(nvlist_error(nvl) == 0);
+	CHECK(nvlist_exists_binary(nvl,
+	    "nvlist/binary/abcdefghijklmnopqrstuvwxyz"));
+	CHECK(ptr == nvlist_get_binary(nvl,
+	    "nvlist/binary/abcdefghijklmnopqrstuvwxyz", NULL));
+	CHECK(ptr == nvlist_get_binary(nvl,
+	    "nvlist/binary/abcdefghijklmnopqrstuvwxyz", &size));
+	CHECK(size == sizeof("abcdefghijklmnopqrstuvwxyz"));
+
+	CHECK(!nvlist_exists_nvlist(nvl, "nvlist/nvlist"));
+	ptr = nvlist_clone(nvl);
+	CHECK(ptr != NULL);
+	nvlist_move_nvlist(nvl, "nvlist/nvlist", ptr);
+	CHECK(nvlist_error(nvl) == 0);
+	CHECK(nvlist_exists_nvlist(nvl, "nvlist/nvlist"));
+	CHECK(ptr == nvlist_get_nvlist(nvl, "nvlist/nvlist"));
+
+	CHECK(nvlist_exists_string(nvl, "nvlist/string/"));
+	CHECK(nvlist_exists_string(nvl, "nvlist/string/x"));
+	CHECK(nvlist_exists_string(nvl,
+	    "nvlist/string/abcdefghijklmnopqrstuvwxyz"));
+	CHECK(nvlist_exists_descriptor(nvl, "nvlist/descriptor/STDERR_FILENO"));
+	CHECK(nvlist_exists_binary(nvl, "nvlist/binary/x"));
+	CHECK(nvlist_exists_binary(nvl,
+	    "nvlist/binary/abcdefghijklmnopqrstuvwxyz"));
+	CHECK(nvlist_exists_nvlist(nvl, "nvlist/nvlist"));
+
+	cnvl = nvlist_get_nvlist(nvl, "nvlist/nvlist");
+	CHECK(nvlist_exists_string(cnvl, "nvlist/string/"));
+	CHECK(nvlist_exists_string(cnvl, "nvlist/string/x"));
+	CHECK(nvlist_exists_string(cnvl,
+	    "nvlist/string/abcdefghijklmnopqrstuvwxyz"));
+	CHECK(nvlist_exists_descriptor(cnvl,
+	    "nvlist/descriptor/STDERR_FILENO"));
+	CHECK(nvlist_exists_binary(cnvl, "nvlist/binary/x"));
+	CHECK(nvlist_exists_binary(cnvl,
+	    "nvlist/binary/abcdefghijklmnopqrstuvwxyz"));
+
+	nvlist_destroy(nvl);
+
+	return (0);
+}
diff --git a/tools/regression/lib/libnv/nvlist_send_recv.c b/tools/regression/lib/libnv/nvlist_send_recv.c
new file mode 100644
index 000000000000..c751bf782522
--- /dev/null
+++ b/tools/regression/lib/libnv/nvlist_send_recv.c
@@ -0,0 +1,325 @@
+/*-
+ * Copyright (c) 2013 The FreeBSD Foundation
+ * All rights reserved.
+ *
+ * This software was developed by Pawel Jakub Dawidek under sponsorship from
+ * the FreeBSD Foundation.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/wait.h>
+
+#include <err.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <nv.h>
+
+static int ntest = 1;
+
+#define	CHECK(expr)	do {						\
+	if ((expr))							\
+		printf("ok # %d %s:%u\n", ntest, __FILE__, __LINE__);	\
+	else								\
+		printf("not ok # %d %s:%u\n", ntest, __FILE__, __LINE__);\
+	ntest++;							\
+} while (0)
+
+#define	fd_is_valid(fd)	(fcntl((fd), F_GETFL) != -1 || errno != EBADF)
+
+static void
+child(int sock)
+{
+	nvlist_t *nvl;
+
+	nvl = nvlist_create(0);
+
+	nvlist_add_bool(nvl, "nvlist/bool/true", true);
+	nvlist_add_bool(nvl, "nvlist/bool/false", false);
+	nvlist_add_number(nvl, "nvlist/number/0", 0);
+	nvlist_add_number(nvl, "nvlist/number/1", 1);
+	nvlist_add_number(nvl, "nvlist/number/-1", -1);
+	nvlist_add_number(nvl, "nvlist/number/UINT64_MAX", UINT64_MAX);
+	nvlist_add_number(nvl, "nvlist/number/INT64_MIN", INT64_MIN);
+	nvlist_add_number(nvl, "nvlist/number/INT64_MAX", INT64_MAX);
+	nvlist_add_string(nvl, "nvlist/string/", "");
+	nvlist_add_string(nvl, "nvlist/string/x", "x");
+	nvlist_add_string(nvl, "nvlist/string/abcdefghijklmnopqrstuvwxyz", "abcdefghijklmnopqrstuvwxyz");
+	nvlist_add_descriptor(nvl, "nvlist/descriptor/STDERR_FILENO", STDERR_FILENO);
+	nvlist_add_binary(nvl, "nvlist/binary/x", "x", 1);
+	nvlist_add_binary(nvl, "nvlist/binary/abcdefghijklmnopqrstuvwxyz", "abcdefghijklmnopqrstuvwxyz", sizeof("abcdefghijklmnopqrstuvwxyz"));
+	nvlist_add_nvlist(nvl, "nvlist/nvlist", nvl);
+
+	nvlist_send(sock, nvl);
+
+	nvlist_destroy(nvl);
+}
+
+static void
+parent(int sock)
+{
+	nvlist_t *nvl;
+	const nvlist_t *cnvl;
+	const char *name, *cname;
+	void *cookie, *ccookie;
+	int type, ctype;
+	size_t size;
+
+	nvl = nvlist_recv(sock);
+	CHECK(nvlist_error(nvl) == 0);
+	if (nvlist_error(nvl) != 0)
+		err(1, "nvlist_recv() failed");
+
+	cookie = NULL;
+
+	name = nvlist_next(nvl, &type, &cookie);
+	CHECK(name != NULL);
+	CHECK(type == NV_TYPE_BOOL);
+	CHECK(strcmp(name, "nvlist/bool/true") == 0);
+	CHECK(nvlist_get_bool(nvl, name) == true);
+
+	name = nvlist_next(nvl, &type, &cookie);
+	CHECK(name != NULL);
+	CHECK(type == NV_TYPE_BOOL);
+	CHECK(strcmp(name, "nvlist/bool/false") == 0);
+	CHECK(nvlist_get_bool(nvl, name) == false);
+
+	name = nvlist_next(nvl, &type, &cookie);
+	CHECK(name != NULL);
+	CHECK(type == NV_TYPE_NUMBER);
+	CHECK(strcmp(name, "nvlist/number/0") == 0);
+	CHECK(nvlist_get_number(nvl, name) == 0);
+
+	name = nvlist_next(nvl, &type, &cookie);
+	CHECK(name != NULL);
+	CHECK(type == NV_TYPE_NUMBER);
+	CHECK(strcmp(name, "nvlist/number/1") == 0);
+	CHECK(nvlist_get_number(nvl, name) == 1);
+
+	name = nvlist_next(nvl, &type, &cookie);
+	CHECK(name != NULL);
+	CHECK(type == NV_TYPE_NUMBER);
+	CHECK(strcmp(name, "nvlist/number/-1") == 0);
+	CHECK((int)nvlist_get_number(nvl, name) == -1);
+
+	name = nvlist_next(nvl, &type, &cookie);
+	CHECK(name != NULL);
+	CHECK(type == NV_TYPE_NUMBER);
+	CHECK(strcmp(name, "nvlist/number/UINT64_MAX") == 0);
+	CHECK(nvlist_get_number(nvl, name) == UINT64_MAX);
+
+	name = nvlist_next(nvl, &type, &cookie);
+	CHECK(name != NULL);
+	CHECK(type == NV_TYPE_NUMBER);
+	CHECK(strcmp(name, "nvlist/number/INT64_MIN") == 0);
+	CHECK((int64_t)nvlist_get_number(nvl, name) == INT64_MIN);
+
+	name = nvlist_next(nvl, &type, &cookie);
+	CHECK(name != NULL);
+	CHECK(type == NV_TYPE_NUMBER);
+	CHECK(strcmp(name, "nvlist/number/INT64_MAX") == 0);
+	CHECK((int64_t)nvlist_get_number(nvl, name) == INT64_MAX);
+
+	name = nvlist_next(nvl, &type, &cookie);
+	CHECK(name != NULL);
+	CHECK(type == NV_TYPE_STRING);
+	CHECK(strcmp(name, "nvlist/string/") == 0);
+	CHECK(strcmp(nvlist_get_string(nvl, name), "") == 0);
+
+	name = nvlist_next(nvl, &type, &cookie);
+	CHECK(name != NULL);
+	CHECK(type == NV_TYPE_STRING);
+	CHECK(strcmp(name, "nvlist/string/x") == 0);
+	CHECK(strcmp(nvlist_get_string(nvl, name), "x") == 0);
+
+	name = nvlist_next(nvl, &type, &cookie);
+	CHECK(name != NULL);
+	CHECK(type == NV_TYPE_STRING);
+	CHECK(strcmp(name, "nvlist/string/abcdefghijklmnopqrstuvwxyz") == 0);
+	CHECK(strcmp(nvlist_get_string(nvl, name), "abcdefghijklmnopqrstuvwxyz") == 0);
+
+	name = nvlist_next(nvl, &type, &cookie);
+	CHECK(name != NULL);
+	CHECK(type == NV_TYPE_DESCRIPTOR);
+	CHECK(strcmp(name, "nvlist/descriptor/STDERR_FILENO") == 0);
+	CHECK(fd_is_valid(nvlist_get_descriptor(nvl, name)));
+
+	name = nvlist_next(nvl, &type, &cookie);
+	CHECK(name != NULL);
+	CHECK(type == NV_TYPE_BINARY);
+	CHECK(strcmp(name, "nvlist/binary/x") == 0);
+	CHECK(memcmp(nvlist_get_binary(nvl, name, NULL), "x", 1) == 0);
+	CHECK(memcmp(nvlist_get_binary(nvl, name, &size), "x", 1) == 0);
+	CHECK(size == 1);
+
+	name = nvlist_next(nvl, &type, &cookie);
+	CHECK(name != NULL);
+	CHECK(type == NV_TYPE_BINARY);
+	CHECK(strcmp(name, "nvlist/binary/abcdefghijklmnopqrstuvwxyz") == 0);
+	CHECK(memcmp(nvlist_get_binary(nvl, name, NULL), "abcdefghijklmnopqrstuvwxyz", sizeof("abcdefghijklmnopqrstuvwxyz")) == 0);
+	CHECK(memcmp(nvlist_get_binary(nvl, name, &size), "abcdefghijklmnopqrstuvwxyz", sizeof("abcdefghijklmnopqrstuvwxyz")) == 0);
+	CHECK(size == sizeof("abcdefghijklmnopqrstuvwxyz"));
+
+	name = nvlist_next(nvl, &type, &cookie);
+	CHECK(name != NULL);
+	CHECK(type == NV_TYPE_NVLIST);
+	CHECK(strcmp(name, "nvlist/nvlist") == 0);
+	cnvl = nvlist_get_nvlist(nvl, name);
+
+	ccookie = NULL;
+
+	cname = nvlist_next(cnvl, &ctype, &ccookie);
+	CHECK(cname != NULL);
+	CHECK(ctype == NV_TYPE_BOOL);
+	CHECK(strcmp(cname, "nvlist/bool/true") == 0);
+	CHECK(nvlist_get_bool(cnvl, cname) == true);
+
+	cname = nvlist_next(cnvl, &ctype, &ccookie);
+	CHECK(cname != NULL);
+	CHECK(ctype == NV_TYPE_BOOL);
+	CHECK(strcmp(cname, "nvlist/bool/false") == 0);
+	CHECK(nvlist_get_bool(cnvl, cname) == false);
+
+	cname = nvlist_next(cnvl, &ctype, &ccookie);
+	CHECK(cname != NULL);
+	CHECK(ctype == NV_TYPE_NUMBER);
+	CHECK(strcmp(cname, "nvlist/number/0") == 0);
+	CHECK(nvlist_get_number(cnvl, cname) == 0);
+
+	cname = nvlist_next(cnvl, &ctype, &ccookie);
+	CHECK(cname != NULL);
+	CHECK(ctype == NV_TYPE_NUMBER);
+	CHECK(strcmp(cname, "nvlist/number/1") == 0);
+	CHECK(nvlist_get_number(cnvl, cname) == 1);
+
+	cname = nvlist_next(cnvl, &ctype, &ccookie);
+	CHECK(cname != NULL);
+	CHECK(ctype == NV_TYPE_NUMBER);
+	CHECK(strcmp(cname, "nvlist/number/-1") == 0);
+	CHECK((int)nvlist_get_number(cnvl, cname) == -1);
+
+	cname = nvlist_next(cnvl, &ctype, &ccookie);
+	CHECK(cname != NULL);
+	CHECK(ctype == NV_TYPE_NUMBER);
+	CHECK(strcmp(cname, "nvlist/number/UINT64_MAX") == 0);
+	CHECK(nvlist_get_number(cnvl, cname) == UINT64_MAX);
+
+	cname = nvlist_next(cnvl, &ctype, &ccookie);
+	CHECK(cname != NULL);
+	CHECK(ctype == NV_TYPE_NUMBER);
+	CHECK(strcmp(cname, "nvlist/number/INT64_MIN") == 0);
+	CHECK((int64_t)nvlist_get_number(cnvl, cname) == INT64_MIN);
+
+	cname = nvlist_next(cnvl, &ctype, &ccookie);
+	CHECK(cname != NULL);
+	CHECK(ctype == NV_TYPE_NUMBER);
+	CHECK(strcmp(cname, "nvlist/number/INT64_MAX") == 0);
+	CHECK((int64_t)nvlist_get_number(cnvl, cname) == INT64_MAX);
+
+	cname = nvlist_next(cnvl, &ctype, &ccookie);
+	CHECK(cname != NULL);
+	CHECK(ctype == NV_TYPE_STRING);
+	CHECK(strcmp(cname, "nvlist/string/") == 0);
+	CHECK(strcmp(nvlist_get_string(cnvl, cname), "") == 0);
+
+	cname = nvlist_next(cnvl, &ctype, &ccookie);
+	CHECK(cname != NULL);
+	CHECK(ctype == NV_TYPE_STRING);
+	CHECK(strcmp(cname, "nvlist/string/x") == 0);
+	CHECK(strcmp(nvlist_get_string(cnvl, cname), "x") == 0);
+
+	cname = nvlist_next(cnvl, &ctype, &ccookie);
+	CHECK(cname != NULL);
+	CHECK(ctype == NV_TYPE_STRING);
+	CHECK(strcmp(cname, "nvlist/string/abcdefghijklmnopqrstuvwxyz") == 0);
+	CHECK(strcmp(nvlist_get_string(cnvl, cname), "abcdefghijklmnopqrstuvwxyz") == 0);
+
+	cname = nvlist_next(cnvl, &ctype, &ccookie);
+	CHECK(cname != NULL);
+	CHECK(ctype == NV_TYPE_DESCRIPTOR);
+	CHECK(strcmp(cname, "nvlist/descriptor/STDERR_FILENO") == 0);
+	CHECK(fd_is_valid(nvlist_get_descriptor(cnvl, cname)));
+
+	cname = nvlist_next(cnvl, &ctype, &ccookie);
+	CHECK(cname != NULL);
+	CHECK(ctype == NV_TYPE_BINARY);
+	CHECK(strcmp(cname, "nvlist/binary/x") == 0);
+	CHECK(memcmp(nvlist_get_binary(cnvl, cname, NULL), "x", 1) == 0);
+	CHECK(memcmp(nvlist_get_binary(cnvl, cname, &size), "x", 1) == 0);
+	CHECK(size == 1);
+
+	cname = nvlist_next(cnvl, &ctype, &ccookie);
+	CHECK(cname != NULL);
+	CHECK(ctype == NV_TYPE_BINARY);
+	CHECK(strcmp(cname, "nvlist/binary/abcdefghijklmnopqrstuvwxyz") == 0);
+	CHECK(memcmp(nvlist_get_binary(cnvl, cname, NULL), "abcdefghijklmnopqrstuvwxyz", sizeof("abcdefghijklmnopqrstuvwxyz")) == 0);
+	CHECK(memcmp(nvlist_get_binary(cnvl, cname, &size), "abcdefghijklmnopqrstuvwxyz", sizeof("abcdefghijklmnopqrstuvwxyz")) == 0);
+	CHECK(size == sizeof("abcdefghijklmnopqrstuvwxyz"));
+
+	cname = nvlist_next(cnvl, &ctype, &ccookie);
+	CHECK(cname == NULL);
+
+	name = nvlist_next(nvl, &type, &cookie);
+	CHECK(name == NULL);
+}
+
+int
+main(void)
+{
+	int status, socks[2];
+	pid_t pid;
+
+	printf("1..126\n");
+	fflush(stdout);
+
+	if (socketpair(PF_UNIX, SOCK_STREAM, 0, socks) < 0)
+		err(1, "socketpair() failed");
+	pid = fork();
+	switch (pid) {
+	case -1:
+		/* Failure. */
+		err(1, "unable to fork");
+	case 0:
+		/* Child. */
+		close(socks[0]);
+		child(socks[1]);
+		return (0);
+	default:
+		/* Parent. */
+		close(socks[1]);
+		parent(socks[0]);
+		break;
+	}
+
+	if (waitpid(pid, &status, 0) < 0)
+		err(1, "waitpid() failed");
+
+	return (0);
+}