Replace `NNG_OPT_PROTO`, `NNG_OPT_PROTONAME`, and friends with functions.

Socket options were a little awkward, and these are core properties
of the socket.  Few if any applications need these.  This also avoids
some dynamic allocations.

17 files changed, 123 insertions, 157 deletions

diff --git a/src/sp/protocol/bus0/bus_test.c b/src/sp/protocol/bus0/bus_test.c
index 7e049e34..7a9e4a8b 100644
--- a/src/sp/protocol/bus0/bus_test.c
+++ b/src/sp/protocol/bus0/bus_test.c
@@ -17,21 +17,19 @@
 void
 test_bus_identity(void)
 {
-	nng_socket s;
-	int        p;
-	char      *n;
+	nng_socket  s;
+	uint16_t    p;
+	const char *n;
 
 	NUTS_PASS(nng_bus0_open(&s));
-	NUTS_PASS(nng_socket_get_int(s, NNG_OPT_PROTO, &p));
+	NUTS_PASS(nng_socket_proto_id(s, &p));
 	NUTS_TRUE(p == NNG_BUS0_SELF);
-	NUTS_PASS(nng_socket_get_int(s, NNG_OPT_PEER, &p));
+	NUTS_PASS(nng_socket_peer_id(s, &p));
 	NUTS_TRUE(p == NNG_BUS0_PEER); // 49
-	NUTS_PASS(nng_socket_get_string(s, NNG_OPT_PROTONAME, &n));
+	NUTS_PASS(nng_socket_proto_name(s, &n));
 	NUTS_MATCH(n, NNG_BUS0_SELF_NAME);
-	nng_strfree(n);
-	NUTS_PASS(nng_socket_get_string(s, NNG_OPT_PEERNAME, &n));
+	NUTS_PASS(nng_socket_peer_name(s, &n));
 	NUTS_MATCH(n, NNG_BUS0_PEER_NAME);
-	nng_strfree(n);
 	NUTS_CLOSE(s);
 }
 
diff --git a/src/sp/protocol/pair0/pair0_test.c b/src/sp/protocol/pair0/pair0_test.c
index e2196479..0cdfb789 100644
--- a/src/sp/protocol/pair0/pair0_test.c
+++ b/src/sp/protocol/pair0/pair0_test.c
@@ -21,21 +21,19 @@
 static void
 test_identity(void)
 {
-	nng_socket s;
-	int        p;
-	char      *n;
+	nng_socket  s;
+	uint16_t    p;
+	const char *n;
 
 	NUTS_PASS(nng_pair0_open(&s));
-	NUTS_PASS(nng_socket_get_int(s, NNG_OPT_PROTO, &p));
+	NUTS_PASS(nng_socket_proto_id(s, &p));
 	NUTS_TRUE(p == NUTS_PROTO(1u, 0u)); // 16
-	NUTS_PASS(nng_socket_get_int(s, NNG_OPT_PEER, &p));
+	NUTS_PASS(nng_socket_peer_id(s, &p));
 	NUTS_TRUE(p == NUTS_PROTO(1u, 0u)); // 17
-	NUTS_PASS(nng_socket_get_string(s, NNG_OPT_PROTONAME, &n));
+	NUTS_PASS(nng_socket_proto_name(s, &n));
 	NUTS_MATCH(n, "pair");
-	nng_strfree(n);
-	NUTS_PASS(nng_socket_get_string(s, NNG_OPT_PEERNAME, &n));
+	NUTS_PASS(nng_socket_peer_name(s, &n));
 	NUTS_MATCH(n, "pair");
-	nng_strfree(n);
 	NUTS_CLOSE(s);
 }
 
diff --git a/src/sp/protocol/pair1/pair1_poly_test.c b/src/sp/protocol/pair1/pair1_poly_test.c
index 895dd935..acd7f44d 100644
--- a/src/sp/protocol/pair1/pair1_poly_test.c
+++ b/src/sp/protocol/pair1/pair1_poly_test.c
@@ -20,21 +20,19 @@
 static void
 test_poly_identity(void)
 {
-	nng_socket s;
-	int        p;
-	char      *n;
+	nng_socket  s;
+	uint16_t    p;
+	const char *n;
 
 	NUTS_PASS(nng_pair1_open_poly(&s));
-	NUTS_PASS(nng_socket_get_int(s, NNG_OPT_PROTO, &p));
+	NUTS_PASS(nng_socket_proto_id(s, &p));
 	NUTS_TRUE(p == NUTS_PROTO(1u, 1u)); // 32
-	NUTS_PASS(nng_socket_get_int(s, NNG_OPT_PEER, &p));
+	NUTS_PASS(nng_socket_peer_id(s, &p));
 	NUTS_TRUE(p == NUTS_PROTO(1u, 1u)); // 33
-	NUTS_PASS(nng_socket_get_string(s, NNG_OPT_PROTONAME, &n));
+	NUTS_PASS(nng_socket_proto_name(s, &n));
 	NUTS_MATCH(n, "pair1");
-	nng_strfree(n);
-	NUTS_PASS(nng_socket_get_string(s, NNG_OPT_PEERNAME, &n));
+	NUTS_PASS(nng_socket_peer_name(s, &n));
 	NUTS_MATCH(n, "pair1");
-	nng_strfree(n);
 	NUTS_CLOSE(s);
 }
 
diff --git a/src/sp/protocol/pair1/pair1_test.c b/src/sp/protocol/pair1/pair1_test.c
index b6bbee1a..e0e6b3b2 100644
--- a/src/sp/protocol/pair1/pair1_test.c
+++ b/src/sp/protocol/pair1/pair1_test.c
@@ -21,21 +21,19 @@
 static void
 test_mono_identity(void)
 {
-	nng_socket s;
-	int        p;
-	char      *n;
+	nng_socket  s;
+	uint16_t    p;
+	const char *n;
 
 	NUTS_PASS(nng_pair1_open(&s));
-	NUTS_PASS(nng_socket_get_int(s, NNG_OPT_PROTO, &p));
+	NUTS_PASS(nng_socket_proto_id(s, &p));
 	NUTS_TRUE(p == NUTS_PROTO(1u, 1u)); // 32
-	NUTS_PASS(nng_socket_get_int(s, NNG_OPT_PEER, &p));
+	NUTS_PASS(nng_socket_peer_id(s, &p));
 	NUTS_TRUE(p == NUTS_PROTO(1u, 1u)); // 33
-	NUTS_PASS(nng_socket_get_string(s, NNG_OPT_PROTONAME, &n));
+	NUTS_PASS(nng_socket_proto_name(s, &n));
 	NUTS_MATCH(n, "pair1");
-	nng_strfree(n);
-	NUTS_PASS(nng_socket_get_string(s, NNG_OPT_PEERNAME, &n));
+	NUTS_PASS(nng_socket_peer_name(s, &n));
 	NUTS_MATCH(n, "pair1");
-	nng_strfree(n);
 	NUTS_CLOSE(s);
 }
 
diff --git a/src/sp/protocol/pipeline0/pull_test.c b/src/sp/protocol/pipeline0/pull_test.c
index 6be5c2f5..59dcf8a8 100644
--- a/src/sp/protocol/pipeline0/pull_test.c
+++ b/src/sp/protocol/pipeline0/pull_test.c
@@ -13,21 +13,19 @@
 static void
 test_pull_identity(void)
 {
-	nng_socket s;
-	int        p;
-	char      *n;
+	nng_socket  s;
+	uint16_t    p;
+	const char *n;
 
 	NUTS_PASS(nng_pull0_open(&s));
-	NUTS_PASS(nng_socket_get_int(s, NNG_OPT_PROTO, &p));
+	NUTS_PASS(nng_socket_proto_id(s, &p));
 	NUTS_TRUE(p == NUTS_PROTO(5u, 1u)); // 81
-	NUTS_PASS(nng_socket_get_int(s, NNG_OPT_PEER, &p));
+	NUTS_PASS(nng_socket_peer_id(s, &p));
 	NUTS_TRUE(p == NUTS_PROTO(5u, 0u)); // 80
-	NUTS_PASS(nng_socket_get_string(s, NNG_OPT_PROTONAME, &n));
+	NUTS_PASS(nng_socket_proto_name(s, &n));
 	NUTS_MATCH(n, "pull");
-	nng_strfree(n);
-	NUTS_PASS(nng_socket_get_string(s, NNG_OPT_PEERNAME, &n));
+	NUTS_PASS(nng_socket_peer_name(s, &n));
 	NUTS_MATCH(n, "push");
-	nng_strfree(n);
 	NUTS_CLOSE(s);
 }
 
diff --git a/src/sp/protocol/pipeline0/push_test.c b/src/sp/protocol/pipeline0/push_test.c
index 249c62a9..be60ba50 100644
--- a/src/sp/protocol/pipeline0/push_test.c
+++ b/src/sp/protocol/pipeline0/push_test.c
@@ -13,21 +13,19 @@
 static void
 test_push_identity(void)
 {
-	nng_socket s;
-	int        p;
-	char      *n;
+	nng_socket  s;
+	uint16_t    p;
+	const char *n;
 
 	NUTS_PASS(nng_push0_open(&s));
-	NUTS_PASS(nng_socket_get_int(s, NNG_OPT_PROTO, &p));
+	NUTS_PASS(nng_socket_proto_id(s, &p));
 	NUTS_TRUE(p == NUTS_PROTO(5u, 0u)); // 80
-	NUTS_PASS(nng_socket_get_int(s, NNG_OPT_PEER, &p));
+	NUTS_PASS(nng_socket_peer_id(s, &p));
 	NUTS_TRUE(p == NUTS_PROTO(5u, 1u)); // 81
-	NUTS_PASS(nng_socket_get_string(s, NNG_OPT_PROTONAME, &n));
+	NUTS_PASS(nng_socket_proto_name(s, &n));
 	NUTS_MATCH(n, "push");
-	nng_strfree(n);
-	NUTS_PASS(nng_socket_get_string(s, NNG_OPT_PEERNAME, &n));
+	NUTS_PASS(nng_socket_peer_name(s, &n));
 	NUTS_MATCH(n, "pull");
-	nng_strfree(n);
 	NUTS_CLOSE(s);
 }
 
diff --git a/src/sp/protocol/pubsub0/pub_test.c b/src/sp/protocol/pubsub0/pub_test.c
index 4be4b06f..5f0ef01e 100644
--- a/src/sp/protocol/pubsub0/pub_test.c
+++ b/src/sp/protocol/pubsub0/pub_test.c
@@ -13,21 +13,19 @@
 static void
 test_pub_identity(void)
 {
-	nng_socket s;
-	int        p;
-	char      *n;
+	nng_socket  s;
+	uint16_t    p;
+	const char *n;
 
 	NUTS_PASS(nng_pub0_open(&s));
-	NUTS_PASS(nng_socket_get_int(s, NNG_OPT_PROTO, &p));
+	NUTS_PASS(nng_socket_proto_id(s, &p));
 	NUTS_TRUE(p == NUTS_PROTO(2u, 0u)); // 32
-	NUTS_PASS(nng_socket_get_int(s, NNG_OPT_PEER, &p));
+	NUTS_PASS(nng_socket_peer_id(s, &p));
 	NUTS_TRUE(p == NUTS_PROTO(2u, 1u)); // 33
-	NUTS_PASS(nng_socket_get_string(s, NNG_OPT_PROTONAME, &n));
+	NUTS_PASS(nng_socket_proto_name(s, &n));
 	NUTS_MATCH(n, "pub");
-	nng_strfree(n);
-	NUTS_PASS(nng_socket_get_string(s, NNG_OPT_PEERNAME, &n));
+	NUTS_PASS(nng_socket_peer_name(s, &n));
 	NUTS_MATCH(n, "sub");
-	nng_strfree(n);
 	NUTS_CLOSE(s);
 }
 
diff --git a/src/sp/protocol/pubsub0/sub_test.c b/src/sp/protocol/pubsub0/sub_test.c
index ef38042a..b823d486 100644
--- a/src/sp/protocol/pubsub0/sub_test.c
+++ b/src/sp/protocol/pubsub0/sub_test.c
@@ -13,21 +13,19 @@
 static void
 test_sub_identity(void)
 {
-	nng_socket s;
-	int        p;
-	char      *n;
+	nng_socket  s;
+	uint16_t    p;
+	const char *n;
 
 	NUTS_PASS(nng_sub0_open(&s));
-	NUTS_PASS(nng_socket_get_int(s, NNG_OPT_PROTO, &p));
+	NUTS_PASS(nng_socket_proto_id(s, &p));
 	NUTS_TRUE(p == NUTS_PROTO(2u, 1u)); // 33
-	NUTS_PASS(nng_socket_get_int(s, NNG_OPT_PEER, &p));
+	NUTS_PASS(nng_socket_peer_id(s, &p));
 	NUTS_TRUE(p == NUTS_PROTO(2u, 0u)); // 32
-	NUTS_PASS(nng_socket_get_string(s, NNG_OPT_PROTONAME, &n));
+	NUTS_PASS(nng_socket_proto_name(s, &n));
 	NUTS_MATCH(n, "sub");
-	nng_strfree(n);
-	NUTS_PASS(nng_socket_get_string(s, NNG_OPT_PEERNAME, &n));
+	NUTS_PASS(nng_socket_peer_name(s, &n));
 	NUTS_MATCH(n, "pub");
-	nng_strfree(n);
 	NUTS_CLOSE(s);
 }
 
diff --git a/src/sp/protocol/pubsub0/xsub_test.c b/src/sp/protocol/pubsub0/xsub_test.c
index b8f303f3..8e5568c4 100644
--- a/src/sp/protocol/pubsub0/xsub_test.c
+++ b/src/sp/protocol/pubsub0/xsub_test.c
@@ -13,21 +13,19 @@
 static void
 test_xsub_identity(void)
 {
-	nng_socket s;
-	int        p;
-	char      *n;
+	nng_socket  s;
+	uint16_t    p;
+	const char *n;
 
 	NUTS_PASS(nng_sub0_open_raw(&s));
-	NUTS_PASS(nng_socket_get_int(s, NNG_OPT_PROTO, &p));
+	NUTS_PASS(nng_socket_proto_id(s, &p));
 	NUTS_TRUE(p == NUTS_PROTO(2u, 1u)); // 33
-	NUTS_PASS(nng_socket_get_int(s, NNG_OPT_PEER, &p));
+	NUTS_PASS(nng_socket_peer_id(s, &p));
 	NUTS_TRUE(p == NUTS_PROTO(2u, 0u)); // 32
-	NUTS_PASS(nng_socket_get_string(s, NNG_OPT_PROTONAME, &n));
+	NUTS_PASS(nng_socket_proto_name(s, &n));
 	NUTS_MATCH(n, "sub");
-	nng_strfree(n);
-	NUTS_PASS(nng_socket_get_string(s, NNG_OPT_PEERNAME, &n));
+	NUTS_PASS(nng_socket_peer_name(s, &n));
 	NUTS_MATCH(n, "pub");
-	nng_strfree(n);
 	NUTS_CLOSE(s);
 }
 
diff --git a/src/sp/protocol/reqrep0/rep_test.c b/src/sp/protocol/reqrep0/rep_test.c
index 58a54afe..6ca8fbca 100644
--- a/src/sp/protocol/reqrep0/rep_test.c
+++ b/src/sp/protocol/reqrep0/rep_test.c
@@ -13,23 +13,21 @@
 static void
 test_rep_identity(void)
 {
-	nng_socket s;
-	int        p1, p2;
-	char      *n1;
-	char      *n2;
+	nng_socket  s;
+	uint16_t    p1, p2;
+	const char *n1;
+	const char *n2;
 
 	NUTS_PASS(nng_rep0_open(&s));
-	NUTS_PASS(nng_socket_get_int(s, NNG_OPT_PROTO, &p1));
-	NUTS_PASS(nng_socket_get_int(s, NNG_OPT_PEER, &p2));
-	NUTS_PASS(nng_socket_get_string(s, NNG_OPT_PROTONAME, &n1));
-	NUTS_PASS(nng_socket_get_string(s, NNG_OPT_PEERNAME, &n2));
+	NUTS_PASS(nng_socket_proto_id(s, &p1));
+	NUTS_PASS(nng_socket_peer_id(s, &p2));
+	NUTS_PASS(nng_socket_proto_name(s, &n1));
+	NUTS_PASS(nng_socket_peer_name(s, &n2));
 	NUTS_CLOSE(s);
 	NUTS_TRUE(p1 == NNG_REP0_SELF);
 	NUTS_TRUE(p2 == NNG_REP0_PEER);
 	NUTS_MATCH(n1, NNG_REP0_SELF_NAME);
 	NUTS_MATCH(n2, NNG_REP0_PEER_NAME);
-	nng_strfree(n1);
-	nng_strfree(n2);
 }
 
 void
diff --git a/src/sp/protocol/reqrep0/req_test.c b/src/sp/protocol/reqrep0/req_test.c
index 61d9b347..08b40b08 100644
--- a/src/sp/protocol/reqrep0/req_test.c
+++ b/src/sp/protocol/reqrep0/req_test.c
@@ -14,21 +14,19 @@
 static void
 test_req_identity(void)
 {
-	nng_socket s;
-	int        p;
-	char      *n;
+	nng_socket  s;
+	uint16_t    p;
+	const char *n;
 
 	NUTS_PASS(nng_req0_open(&s));
-	NUTS_PASS(nng_socket_get_int(s, NNG_OPT_PROTO, &p));
+	NUTS_PASS(nng_socket_proto_id(s, &p));
 	NUTS_TRUE(p == NNG_REQ0_SELF);
-	NUTS_PASS(nng_socket_get_int(s, NNG_OPT_PEER, &p));
+	NUTS_PASS(nng_socket_peer_id(s, &p));
 	NUTS_TRUE(p == NNG_REQ0_PEER); // 49
-	NUTS_PASS(nng_socket_get_string(s, NNG_OPT_PROTONAME, &n));
+	NUTS_PASS(nng_socket_proto_name(s, &n));
 	NUTS_MATCH(n, NNG_REQ0_SELF_NAME);
-	nng_strfree(n);
-	NUTS_PASS(nng_socket_get_string(s, NNG_OPT_PEERNAME, &n));
+	NUTS_PASS(nng_socket_peer_name(s, &n));
 	NUTS_MATCH(n, NNG_REQ0_PEER_NAME);
-	nng_strfree(n);
 	NUTS_CLOSE(s);
 }
 
diff --git a/src/sp/protocol/reqrep0/xrep_test.c b/src/sp/protocol/reqrep0/xrep_test.c
index 67e38449..c1a7cb62 100644
--- a/src/sp/protocol/reqrep0/xrep_test.c
+++ b/src/sp/protocol/reqrep0/xrep_test.c
@@ -13,23 +13,21 @@
 static void
 test_xrep_identity(void)
 {
-	nng_socket s;
-	int        p1, p2;
-	char      *n1;
-	char      *n2;
+	nng_socket  s;
+	uint16_t    p1, p2;
+	const char *n1;
+	const char *n2;
 
 	NUTS_PASS(nng_rep0_open_raw(&s));
-	NUTS_PASS(nng_socket_get_int(s, NNG_OPT_PROTO, &p1));
-	NUTS_PASS(nng_socket_get_int(s, NNG_OPT_PEER, &p2));
-	NUTS_PASS(nng_socket_get_string(s, NNG_OPT_PROTONAME, &n1));
-	NUTS_PASS(nng_socket_get_string(s, NNG_OPT_PEERNAME, &n2));
+	NUTS_PASS(nng_socket_proto_id(s, &p1));
+	NUTS_PASS(nng_socket_peer_id(s, &p2));
+	NUTS_PASS(nng_socket_proto_name(s, &n1));
+	NUTS_PASS(nng_socket_peer_name(s, &n2));
 	NUTS_CLOSE(s);
 	NUTS_TRUE(p1 == NNG_REP0_SELF);
 	NUTS_TRUE(p2 == NNG_REP0_PEER);
 	NUTS_MATCH(n1, NNG_REP0_SELF_NAME);
 	NUTS_MATCH(n2, NNG_REP0_PEER_NAME);
-	nng_strfree(n1);
-	nng_strfree(n2);
 }
 
 static void
diff --git a/src/sp/protocol/reqrep0/xreq_test.c b/src/sp/protocol/reqrep0/xreq_test.c
index 3ebe92da..7e09ce5a 100644
--- a/src/sp/protocol/reqrep0/xreq_test.c
+++ b/src/sp/protocol/reqrep0/xreq_test.c
@@ -13,23 +13,21 @@
 static void
 test_xreq_identity(void)
 {
-	nng_socket s;
-	int        p1, p2;
-	char      *n1;
-	char      *n2;
+	nng_socket  s;
+	uint16_t    p1, p2;
+	const char *n1;
+	const char *n2;
 
 	NUTS_PASS(nng_req0_open_raw(&s));
-	NUTS_PASS(nng_socket_get_int(s, NNG_OPT_PROTO, &p1));
-	NUTS_PASS(nng_socket_get_int(s, NNG_OPT_PEER, &p2));
-	NUTS_PASS(nng_socket_get_string(s, NNG_OPT_PROTONAME, &n1));
-	NUTS_PASS(nng_socket_get_string(s, NNG_OPT_PEERNAME, &n2));
+	NUTS_PASS(nng_socket_proto_id(s, &p1));
+	NUTS_PASS(nng_socket_peer_id(s, &p2));
+	NUTS_PASS(nng_socket_proto_name(s, &n1));
+	NUTS_PASS(nng_socket_peer_name(s, &n2));
 	NUTS_CLOSE(s);
 	NUTS_TRUE(p1 == NNG_REQ0_SELF);
 	NUTS_TRUE(p2 == NNG_REQ0_PEER);
 	NUTS_MATCH(n1, NNG_REQ0_SELF_NAME);
 	NUTS_MATCH(n2, NNG_REQ0_PEER_NAME);
-	nng_strfree(n1);
-	nng_strfree(n2);
 }
 
 static void
diff --git a/src/sp/protocol/survey0/respond_test.c b/src/sp/protocol/survey0/respond_test.c
index 0dad2222..5e3dad34 100644
--- a/src/sp/protocol/survey0/respond_test.c
+++ b/src/sp/protocol/survey0/respond_test.c
@@ -13,21 +13,19 @@
 void
 test_resp_identity(void)
 {
-	nng_socket s;
-	int        p;
-	char      *n;
+	nng_socket  s;
+	uint16_t    p;
+	const char *n;
 
 	NUTS_PASS(nng_respondent0_open(&s));
-	NUTS_PASS(nng_socket_get_int(s, NNG_OPT_PROTO, &p));
+	NUTS_PASS(nng_socket_proto_id(s, &p));
 	NUTS_TRUE(p == NNG_RESPONDENT0_SELF);
-	NUTS_TRUE(nng_socket_get_int(s, NNG_OPT_PEER, &p) == 0);
+	NUTS_TRUE(nng_socket_peer_id(s, &p) == 0);
 	NUTS_TRUE(p == NNG_RESPONDENT0_PEER);
-	NUTS_TRUE(nng_socket_get_string(s, NNG_OPT_PROTONAME, &n) == 0);
+	NUTS_TRUE(nng_socket_proto_name(s, &n) == 0);
 	NUTS_MATCH(n, NNG_RESPONDENT0_SELF_NAME);
-	nng_strfree(n);
-	NUTS_TRUE(nng_socket_get_string(s, NNG_OPT_PEERNAME, &n) == 0);
+	NUTS_TRUE(nng_socket_peer_name(s, &n) == 0);
 	NUTS_MATCH(n, NNG_RESPONDENT0_PEER_NAME);
-	nng_strfree(n);
 	NUTS_CLOSE(s);
 }
 
diff --git a/src/sp/protocol/survey0/survey_test.c b/src/sp/protocol/survey0/survey_test.c
index 76fe138d..e860dc14 100644
--- a/src/sp/protocol/survey0/survey_test.c
+++ b/src/sp/protocol/survey0/survey_test.c
@@ -14,21 +14,19 @@
 static void
 test_surv_identity(void)
 {
-	nng_socket s;
-	int        p;
-	char      *n;
+	nng_socket  s;
+	uint16_t    p;
+	const char *n;
 
 	NUTS_PASS(nng_surveyor0_open(&s));
-	NUTS_PASS(nng_socket_get_int(s, NNG_OPT_PROTO, &p));
+	NUTS_PASS(nng_socket_proto_id(s, &p));
 	NUTS_TRUE(p == NNG_SURVEYOR0_SELF);
-	NUTS_PASS(nng_socket_get_int(s, NNG_OPT_PEER, &p));
+	NUTS_PASS(nng_socket_peer_id(s, &p));
 	NUTS_TRUE(p == NNG_SURVEYOR0_PEER); // 49
-	NUTS_PASS(nng_socket_get_string(s, NNG_OPT_PROTONAME, &n));
+	NUTS_PASS(nng_socket_proto_name(s, &n));
 	NUTS_MATCH(n, NNG_SURVEYOR0_SELF_NAME);
-	nng_strfree(n);
-	NUTS_PASS(nng_socket_get_string(s, NNG_OPT_PEERNAME, &n));
+	NUTS_PASS(nng_socket_peer_name(s, &n));
 	NUTS_MATCH(n, NNG_SURVEYOR0_PEER_NAME);
-	nng_strfree(n);
 	NUTS_CLOSE(s);
 }
 
diff --git a/src/sp/protocol/survey0/xrespond_test.c b/src/sp/protocol/survey0/xrespond_test.c
index 8b8787f9..1522d1ed 100644
--- a/src/sp/protocol/survey0/xrespond_test.c
+++ b/src/sp/protocol/survey0/xrespond_test.c
@@ -13,23 +13,21 @@
 static void
 test_xresp_identity(void)
 {
-	nng_socket s;
-	int        p1, p2;
-	char      *n1;
-	char      *n2;
+	nng_socket  s;
+	uint16_t    p1, p2;
+	const char *n1;
+	const char *n2;
 
 	NUTS_PASS(nng_respondent0_open_raw(&s));
-	NUTS_PASS(nng_socket_get_int(s, NNG_OPT_PROTO, &p1));
-	NUTS_PASS(nng_socket_get_int(s, NNG_OPT_PEER, &p2));
-	NUTS_PASS(nng_socket_get_string(s, NNG_OPT_PROTONAME, &n1));
-	NUTS_PASS(nng_socket_get_string(s, NNG_OPT_PEERNAME, &n2));
+	NUTS_PASS(nng_socket_proto_id(s, &p1));
+	NUTS_PASS(nng_socket_peer_id(s, &p2));
+	NUTS_PASS(nng_socket_proto_name(s, &n1));
+	NUTS_PASS(nng_socket_peer_name(s, &n2));
 	NUTS_CLOSE(s);
 	NUTS_TRUE(p1 == NNG_RESPONDENT0_SELF);
 	NUTS_TRUE(p2 == NNG_RESPONDENT0_PEER);
 	NUTS_MATCH(n1, NNG_RESPONDENT0_SELF_NAME);
 	NUTS_MATCH(n2, NNG_RESPONDENT0_PEER_NAME);
-	nng_strfree(n1);
-	nng_strfree(n2);
 }
 
 static void
diff --git a/src/sp/protocol/survey0/xsurvey_test.c b/src/sp/protocol/survey0/xsurvey_test.c
index efa54101..41c76cb2 100644
--- a/src/sp/protocol/survey0/xsurvey_test.c
+++ b/src/sp/protocol/survey0/xsurvey_test.c
@@ -13,21 +13,19 @@
 static void
 test_xsurveyor_identity(void)
 {
-	nng_socket s;
-	int        p;
-	char      *n;
+	nng_socket  s;
+	uint16_t    p;
+	const char *n;
 
 	NUTS_PASS(nng_surveyor0_open_raw(&s));
-	NUTS_PASS(nng_socket_get_int(s, NNG_OPT_PROTO, &p));
+	NUTS_PASS(nng_socket_proto_id(s, &p));
 	NUTS_TRUE(p == NNG_SURVEYOR0_SELF); // 0x62
-	NUTS_PASS(nng_socket_get_int(s, NNG_OPT_PEER, &p));
+	NUTS_PASS(nng_socket_peer_id(s, &p));
 	NUTS_TRUE(p == NNG_SURVEYOR0_PEER); // 0x62
-	NUTS_PASS(nng_socket_get_string(s, NNG_OPT_PROTONAME, &n));
+	NUTS_PASS(nng_socket_proto_name(s, &n));
 	NUTS_MATCH(n, NNG_SURVEYOR0_SELF_NAME);
-	nng_strfree(n);
-	NUTS_PASS(nng_socket_get_string(s, NNG_OPT_PEERNAME, &n));
+	NUTS_PASS(nng_socket_peer_name(s, &n));
 	NUTS_MATCH(n, NNG_SURVEYOR0_PEER_NAME);
-	nng_strfree(n);
 	NUTS_CLOSE(s);
 }