Add new functions for socket identity.

These functions were added in the main branch for NNG 2.0, and
we add them here to facilitate converting any code that happened
to use the options (`NNG_OPT_PROTO`, `NNG_OPT_PROTONAME`,
`NNG_OPT_PEER`, `NNG_OPT_PEERNAME`, and `NNG_OPT_RAW`.

Its unlikely that many applications need this, but providing these
as a transition aid may help applications start adopting new APIs now.

1 files changed, 79 insertions, 0 deletions

diff --git a/src/nng.c b/src/nng.c
index b5e7430b..60ec10eb 100644
--- a/src/nng.c
+++ b/src/nng.c
@@ -1146,6 +1146,85 @@ nng_socket_get_addr(nng_socket id, const char *n, nng_sockaddr *v)
 }
 
 int
+nng_socket_proto_id(nng_socket id, uint16_t *idp)
+{
+	int       rv;
+	nni_sock *sock;
+
+	if (((rv = nni_init()) != 0) ||
+	    ((rv = nni_sock_find(&sock, id.id)) != 0)) {
+		return (rv);
+	}
+
+	*idp = nni_sock_proto_id(sock);
+	nni_sock_rele(sock);
+	return (0);
+}
+
+int
+nng_socket_peer_id(nng_socket id, uint16_t *idp)
+{
+	int       rv;
+	nni_sock *sock;
+
+	if (((rv = nni_init()) != 0) ||
+	    ((rv = nni_sock_find(&sock, id.id)) != 0)) {
+		return (rv);
+	}
+
+	*idp = nni_sock_peer_id(sock);
+	nni_sock_rele(sock);
+	return (0);
+}
+
+int
+nng_socket_proto_name(nng_socket id, const char **name)
+{
+	int       rv;
+	nni_sock *sock;
+
+	if (((rv = nni_init()) != 0) ||
+	    ((rv = nni_sock_find(&sock, id.id)) != 0)) {
+		return (rv);
+	}
+
+	*name = nni_sock_proto_name(sock);
+	nni_sock_rele(sock);
+	return (0);
+}
+
+int
+nng_socket_peer_name(nng_socket id, const char **name)
+{
+	int       rv;
+	nni_sock *sock;
+
+	if (((rv = nni_init()) != 0) ||
+	    ((rv = nni_sock_find(&sock, id.id)) != 0)) {
+		return (rv);
+	}
+
+	*name = nni_sock_peer_name(sock);
+	nni_sock_rele(sock);
+	return (0);
+}
+
+int
+nng_socket_raw(nng_socket id, bool *rawp)
+{
+	int       rv;
+	nni_sock *sock;
+
+	if (((rv = nni_init()) != 0) ||
+	    ((rv = nni_sock_find(&sock, id.id)) != 0)) {
+		return (rv);
+	}
+	*rawp = nni_sock_raw(sock);
+	nni_sock_rele(sock);
+	return (0);
+}
+
+int
 nng_pipe_notify(nng_socket s, nng_pipe_ev ev, nng_pipe_cb cb, void *arg)
 {
 	int       rv;