fixes #219 transports should take URL structure instead of string address

This eliminates a bunch of redundant URL parsing, using the common
URL logic we already have in place.

While here I fixed a problem with the TLS and WSS test suites that
was failing on older Ubuntu -- apparently older versions of mbedTLS
were unhappy if selecting OPTIONAL verification without a validate
certificate chain.

20 files changed, 107 insertions, 159 deletions

diff --git a/src/core/defs.h b/src/core/defs.h
index 3a714f85..d4a8a740 100644
--- a/src/core/defs.h
+++ b/src/core/defs.h
@@ -43,6 +43,7 @@ typedef struct nni_tran_ep          nni_tran_ep;
 typedef struct nni_tran_ep_option   nni_tran_ep_option;
 typedef struct nni_tran_pipe        nni_tran_pipe;
 typedef struct nni_tran_pipe_option nni_tran_pipe_option;
+typedef struct nni_url              nni_url;
 
 typedef struct nni_proto_sock_ops    nni_proto_sock_ops;
 typedef struct nni_proto_pipe_ops    nni_proto_pipe_ops;
diff --git a/src/core/endpt.c b/src/core/endpt.c
index 57e4bc62..cfabcc87 100644
--- a/src/core/endpt.c
+++ b/src/core/endpt.c
@@ -21,7 +21,7 @@ struct nni_ep {
 	uint64_t      ep_id;   // endpoint id
 	nni_list_node ep_node; // per socket list
 	nni_sock *    ep_sock;
-	char          ep_url[NNG_MAXADDRLEN];
+	nni_url *     ep_url;
 	int           ep_mode;
 	int           ep_started;
 	int           ep_closed;  // full shutdown
@@ -82,12 +82,6 @@ nni_ep_id(nni_ep *ep)
 	return ((uint32_t) ep->ep_id);
 }
 
-const char *
-nni_ep_url(nni_ep *ep)
-{
-	return (ep->ep_url);
-}
-
 static void
 nni_ep_destroy(nni_ep *ep)
 {
@@ -119,26 +113,31 @@ nni_ep_destroy(nni_ep *ep)
 	nni_mtx_unlock(&ep->ep_mtx);
 	nni_cv_fini(&ep->ep_cv);
 	nni_mtx_fini(&ep->ep_mtx);
+	nni_url_free(ep->ep_url);
 	NNI_FREE_STRUCT(ep);
 }
 
 static int
-nni_ep_create(nni_ep **epp, nni_sock *s, const char *url, int mode)
+nni_ep_create(nni_ep **epp, nni_sock *s, const char *urlstr, int mode)
 {
 	nni_tran *tran;
 	nni_ep *  ep;
 	int       rv;
+	nni_url * url;
 
+	if ((rv = nni_url_parse(&url, urlstr)) != 0) {
+		return (rv);
+	}
 	if ((tran = nni_tran_find(url)) == NULL) {
+		nni_url_free(url);
 		return (NNG_ENOTSUP);
 	}
-	if (strlen(url) >= NNG_MAXADDRLEN) {
-		return (NNG_EINVAL);
-	}
 
 	if ((ep = NNI_ALLOC_STRUCT(ep)) == NULL) {
+		nni_url_free(url);
 		return (NNG_ENOMEM);
 	}
+	ep->ep_url     = url;
 	ep->ep_closed  = 0;
 	ep->ep_started = 0;
 	ep->ep_data    = NULL;
@@ -152,8 +151,6 @@ nni_ep_create(nni_ep **epp, nni_sock *s, const char *url, int mode)
 	// dereference on hot paths.
 	ep->ep_ops = *tran->tran_ep;
 
-	(void) nni_strlcpy(ep->ep_url, url, sizeof(ep->ep_url));
-
 	NNI_LIST_NODE_INIT(&ep->ep_node);
 
 	nni_pipe_ep_list_init(&ep->ep_pipes);
@@ -177,15 +174,15 @@ nni_ep_create(nni_ep **epp, nni_sock *s, const char *url, int mode)
 }
 
 int
-nni_ep_create_dialer(nni_ep **epp, nni_sock *s, const char *url)
+nni_ep_create_dialer(nni_ep **epp, nni_sock *s, const char *urlstr)
 {
-	return (nni_ep_create(epp, s, url, NNI_EP_MODE_DIAL));
+	return (nni_ep_create(epp, s, urlstr, NNI_EP_MODE_DIAL));
 }
 
 int
-nni_ep_create_listener(nni_ep **epp, nni_sock *s, const char *url)
+nni_ep_create_listener(nni_ep **epp, nni_sock *s, const char *urlstr)
 {
-	return (nni_ep_create(epp, s, url, NNI_EP_MODE_LISTEN));
+	return (nni_ep_create(epp, s, urlstr, NNI_EP_MODE_LISTEN));
 }
 
 int
@@ -622,7 +619,7 @@ nni_ep_getopt(nni_ep *ep, const char *name, void *valp, size_t *szp)
 	nni_tran_ep_option *eo;
 
 	if (strcmp(name, NNG_OPT_URL) == 0) {
-		return (nni_getopt_str(ep->ep_url, valp, szp));
+		return (nni_getopt_str(ep->ep_url->u_rawurl, valp, szp));
 	}
 
 	for (eo = ep->ep_ops.ep_options; eo && eo->eo_name; eo++) {
diff --git a/src/core/endpt.h b/src/core/endpt.h
index f5ad09ee..df4f345b 100644
--- a/src/core/endpt.h
+++ b/src/core/endpt.h
@@ -1,6 +1,6 @@
 //
-// Copyright 2017 Garrett D'Amore <garrett@damore.org>
-// Copyright 2017 Capitar IT Group BV <info@capitar.com>
+// Copyright 2018 Staysail Systems, Inc. <info@staysail.tech>
+// Copyright 2018 Capitar IT Group BV <info@capitar.com>
 //
 // This software is supplied under the terms of the MIT License, a
 // copy of which should be located in the distribution where this
@@ -30,9 +30,8 @@ extern void      nni_ep_list_init(nni_list *);
 extern int       nni_ep_setopt(nni_ep *, const char *, const void *, size_t);
 extern int       nni_ep_getopt(nni_ep *, const char *, void *, size_t *);
 extern int nni_ep_pipe_add(nni_ep *ep, nni_pipe *);
-extern void        nni_ep_pipe_remove(nni_ep *, nni_pipe *);
-extern const char *nni_ep_url(nni_ep *);
-extern int         nni_ep_mode(nni_ep *);
+extern void nni_ep_pipe_remove(nni_ep *, nni_pipe *);
+extern int  nni_ep_mode(nni_ep *);
 
 // Endpoint modes.  Currently used by transports.  Remove this when we make
 // transport dialers and listeners explicit.
diff --git a/src/core/nng_impl.h b/src/core/nng_impl.h
index ea8512bb..5c750ec7 100644
--- a/src/core/nng_impl.h
+++ b/src/core/nng_impl.h
@@ -44,10 +44,13 @@
 #include "core/taskq.h"
 #include "core/thread.h"
 #include "core/timer.h"
-#include "core/transport.h"
 #include "core/url.h"
 
+// transport needs to come after url
+#include "core/transport.h"
+
 // These have to come after the others - particularly transport.h
+
 #include "core/endpt.h"
 #include "core/pipe.h"
 #include "core/socket.h"
diff --git a/src/core/pipe.c b/src/core/pipe.c
index 77ceaa4f..66e7ae87 100644
--- a/src/core/pipe.c
+++ b/src/core/pipe.c
@@ -1,6 +1,6 @@
 //
-// Copyright 2017 Garrett D'Amore <garrett@damore.org>
-// Copyright 2017 Capitar IT Group BV <info@capitar.com>
+// Copyright 2018 Staysail Systems, Inc. <info@staysail.tech>
+// Copyright 2018 Capitar IT Group BV <info@capitar.com>
 //
 // This software is supplied under the terms of the MIT License, a
 // copy of which should be located in the distribution where this
@@ -29,7 +29,6 @@ struct nni_pipe {
 	int           p_reap;
 	int           p_stop;
 	int           p_refcnt;
-	const char *  p_url;
 	nni_mtx       p_mtx;
 	nni_cv        p_cv;
 	nni_list_node p_reap_node;
@@ -268,7 +267,6 @@ nni_pipe_create(nni_ep *ep, void *tdata)
 	p->p_proto_data = NULL;
 	p->p_ep         = ep;
 	p->p_sock       = sock;
-	p->p_url        = nni_ep_url(ep);
 
 	NNI_LIST_NODE_INIT(&p->p_reap_node);
 	NNI_LIST_NODE_INIT(&p->p_sock_node);
diff --git a/src/core/transport.c b/src/core/transport.c
index 0891ec8c..38f88c4d 100644
--- a/src/core/transport.c
+++ b/src/core/transport.c
@@ -26,7 +26,6 @@ extern nni_tran nni_ipc_tran;
 
 typedef struct nni_transport {
 	nni_tran      t_tran;
-	char          t_prefix[16]; // e.g. "tcp://" or "tls+tcp://"
 	nni_list_node t_node;
 } nni_transport;
 
@@ -72,13 +71,6 @@ nni_tran_register(const nni_tran *tran)
 	}
 
 	t->t_tran = *tran;
-	sz        = sizeof(t->t_prefix);
-	if ((nni_strlcpy(t->t_prefix, tran->tran_scheme, sz) >= sz) ||
-	    (nni_strlcat(t->t_prefix, "://", sz) >= sz)) {
-		nni_mtx_unlock(&nni_tran_lk);
-		NNI_FREE_STRUCT(t);
-		return (NNG_EINVAL);
-	}
 	if ((rv = t->t_tran.tran_init()) != 0) {
 		nni_mtx_unlock(&nni_tran_lk);
 		NNI_FREE_STRUCT(t);
@@ -90,14 +82,14 @@ nni_tran_register(const nni_tran *tran)
 }
 
 nni_tran *
-nni_tran_find(const char *addr)
+nni_tran_find(nni_url *url)
 {
 	// address is of the form "<scheme>://blah..."
 	nni_transport *t;
 
 	nni_mtx_lock(&nni_tran_lk);
 	NNI_LIST_FOREACH (&nni_tran_list, t) {
-		if (strncmp(addr, t->t_prefix, strlen(t->t_prefix)) == 0) {
+		if (strcmp(url->u_scheme, t->t_tran.tran_scheme) == 0) {
 			nni_mtx_unlock(&nni_tran_lk);
 			return (&t->t_tran);
 		}
diff --git a/src/core/transport.h b/src/core/transport.h
index 9a6dc31d..0ca9c409 100644
--- a/src/core/transport.h
+++ b/src/core/transport.h
@@ -76,7 +76,7 @@ struct nni_tran_ep_option {
 struct nni_tran_ep {
 	// ep_init creates a vanilla endpoint. The value created is
 	// used for the first argument for all other endpoint functions.
-	int (*ep_init)(void **, const char *, nni_sock *, int);
+	int (*ep_init)(void **, nni_url *, nni_sock *, int);
 
 	// ep_fini frees the resources associated with the endpoint.
 	// The endpoint will already have been closed.
@@ -164,7 +164,7 @@ struct nni_tran_pipe {
 
 // These APIs are used by the framework internally, and not for use by
 // transport implementations.
-extern nni_tran *nni_tran_find(const char *);
+extern nni_tran *nni_tran_find(nni_url *);
 extern int       nni_tran_chkopt(const char *, const void *, size_t);
 extern int       nni_tran_sys_init(void);
 extern void      nni_tran_sys_fini(void);
diff --git a/src/core/url.c b/src/core/url.c
index a5b4fd06..3d8898bd 100644
--- a/src/core/url.c
+++ b/src/core/url.c
@@ -453,4 +453,31 @@ nni_url_free(nni_url *url)
 	nni_strfree(url->u_fragment);
 	nni_strfree(url->u_rawpath);
 	NNI_FREE_STRUCT(url);
+}
+
+int
+nni_url_clone(nni_url **dstp, const nni_url *src)
+{
+	nni_url *dst;
+
+	if ((dst = NNI_ALLOC_STRUCT(dst)) == NULL) {
+		return (NNG_ENOMEM);
+	}
+#define URL_COPYSTR(d, s) ((s != NULL) && ((d = nni_strdup(s)) == NULL))
+	if (URL_COPYSTR(dst->u_rawurl, src->u_rawurl) ||
+	    URL_COPYSTR(dst->u_scheme, src->u_scheme) ||
+	    URL_COPYSTR(dst->u_userinfo, src->u_userinfo) ||
+	    URL_COPYSTR(dst->u_host, src->u_host) ||
+	    URL_COPYSTR(dst->u_hostname, src->u_hostname) ||
+	    URL_COPYSTR(dst->u_port, src->u_port) ||
+	    URL_COPYSTR(dst->u_rawpath, src->u_rawpath) ||
+	    URL_COPYSTR(dst->u_path, src->u_path) ||
+	    URL_COPYSTR(dst->u_query, src->u_query) ||
+	    URL_COPYSTR(dst->u_fragment, src->u_fragment)) {
+		nni_url_free(dst);
+		return (NNG_ENOMEM);
+	}
+#undef URL_COPYSTR
+	*dstp = dst;
+	return (0);
 }
\ No newline at end of file
diff --git a/src/core/url.h b/src/core/url.h
index f99d6eb4..27aec445 100644
--- a/src/core/url.h
+++ b/src/core/url.h
@@ -11,8 +11,6 @@
 #ifndef CORE_URL_H
 #define CORE_URL_H
 
-typedef struct nni_url nni_url;
-
 struct nni_url {
 	char *u_rawurl;   // never NULL
 	char *u_scheme;   // never NULL
@@ -28,5 +26,6 @@ struct nni_url {
 
 extern int nni_url_parse(nni_url **, const char *path);
 extern void nni_url_free(nni_url *);
+extern int  nni_url_clone(nni_url **, const nni_url *);
 
 #endif // CORE_URL_H
diff --git a/src/supplemental/http/client.c b/src/supplemental/http/client.c
index 7542043d..4c54a708 100644
--- a/src/supplemental/http/client.c
+++ b/src/supplemental/http/client.c
@@ -24,7 +24,6 @@ struct nni_http_client {
 	bool             closed;
 	nng_tls_config * tls;
 	nni_aio *        connaio;
-	nni_url *        url;
 	nni_plat_tcp_ep *tep;
 };
 
@@ -92,30 +91,21 @@ nni_http_client_fini(nni_http_client *c)
 		nni_tls_config_fini(c->tls);
 	}
 #endif
-	if (c->url != NULL) {
-		nni_url_free(c->url);
-	}
 	NNI_FREE_STRUCT(c);
 }
 
 int
-nni_http_client_init(nni_http_client **cp, const char *urlstr)
+nni_http_client_init(nni_http_client **cp, nni_url *url)
 {
 	int              rv;
-	nni_url *        url;
 	nni_http_client *c;
 	nni_aio *        aio;
 	nni_sockaddr     sa;
 	char *           host;
 	char *           port;
 
-	if ((rv = nni_url_parse(&url, urlstr)) != 0) {
-		return (rv);
-	}
-
 	if (strlen(url->u_hostname) == 0) {
 		// We require a valid hostname.
-		nni_url_free(url);
 		return (NNG_EADDRINVAL);
 	}
 	if ((strcmp(url->u_scheme, "http") != 0) &&
@@ -132,7 +122,6 @@ nni_http_client_init(nni_http_client **cp, const char *urlstr)
 	// imagines the ability to create a tcp dialer that does the
 	// necessary DNS lookups, etc. all asynchronously.
 	if ((rv = nni_aio_init(&aio, NULL, NULL)) != 0) {
-		nni_url_free(url);
 		return (rv);
 	}
 	aio->a_addr = &sa;
@@ -143,7 +132,6 @@ nni_http_client_init(nni_http_client **cp, const char *urlstr)
 	rv = nni_aio_result(aio);
 	nni_aio_fini(aio);
 	if (rv != 0) {
-		nni_url_free(url);
 		return (rv);
 	}
 
@@ -152,7 +140,6 @@ nni_http_client_init(nni_http_client **cp, const char *urlstr)
 	}
 	nni_mtx_init(&c->mtx);
 	nni_aio_list_init(&c->aios);
-	c->url = url;
 
 #ifdef NNG_SUPP_TLS
 	if ((strcmp(url->u_scheme, "https") == 0) ||
diff --git a/src/supplemental/http/http.h b/src/supplemental/http/http.h
index 08156714..93a94049 100644
--- a/src/supplemental/http/http.h
+++ b/src/supplemental/http/http.h
@@ -174,7 +174,7 @@ typedef struct nni_http_handler nni_http_handler;
 // a restricted binding is required, we recommend using a URL consisting
 // of an empty host name, such as http://  or https://  -- this would
 // convert to binding to the default port on all interfaces on the host.
-extern int nni_http_server_init(nni_http_server **, const char *);
+extern int nni_http_server_init(nni_http_server **, nni_url *);
 
 // nni_http_server_fini drops the reference count on the server, and
 // if this was the last reference, closes down the server and frees
@@ -325,8 +325,7 @@ extern void *nni_http_handler_get_data(nni_http_handler *, unsigned);
 
 typedef struct nni_http_client nni_http_client;
 
-// https vs. http; would also allow us to defer DNS lookups til later.
-extern int  nni_http_client_init(nni_http_client **, const char *);
+extern int  nni_http_client_init(nni_http_client **, nni_url *);
 extern void nni_http_client_fini(nni_http_client *);
 
 // nni_http_client_set_tls sets the TLS configuration.  This wipes out
diff --git a/src/supplemental/http/server.c b/src/supplemental/http/server.c
index 88a3bd1a..ecb544ea 100644
--- a/src/supplemental/http/server.c
+++ b/src/supplemental/http/server.c
@@ -69,7 +69,8 @@ struct nni_http_server {
 	nng_tls_config * tls;
 	nni_aio *        accaio;
 	nni_plat_tcp_ep *tep;
-	nni_url *        url;
+	char *           port;
+	char *           hostname;
 };
 
 int
@@ -789,9 +790,6 @@ http_server_fini(nni_http_server *s)
 		nni_http_handler_fini(h);
 	}
 	nni_mtx_unlock(&s->mtx);
-	if (s->url != NULL) {
-		nni_url_free(s->url);
-	}
 #ifdef NNG_SUPP_TLS
 	if (s->tls != NULL) {
 		nni_tls_config_fini(s->tls);
@@ -800,6 +798,8 @@ http_server_fini(nni_http_server *s)
 	nni_aio_fini(s->accaio);
 	nni_cv_fini(&s->cv);
 	nni_mtx_fini(&s->mtx);
+	nni_strfree(s->hostname);
+	nni_strfree(s->port);
 	NNI_FREE_STRUCT(s);
 }
 
@@ -820,15 +820,9 @@ http_server_init(nni_http_server **serverp, nni_url *url)
 {
 	nni_http_server *s;
 	int              rv;
-	const char *     host;
 	const char *     port;
 	nni_aio *        aio;
 
-	host = url->u_hostname;
-	if (strlen(host) == 0) {
-		host = NULL;
-	}
-
 	port = url->u_port;
 	if ((strcmp(url->u_scheme, "http") != 0) &&
 #ifdef NNG_SUPP_TLS
@@ -836,14 +830,11 @@ http_server_init(nni_http_server **serverp, nni_url *url)
 	    (strcmp(url->u_scheme, "wss") != 0) &&
 #endif
 	    (strcmp(url->u_scheme, "ws") != 0)) {
-		nni_url_free(url);
 		return (NNG_EADDRINVAL);
 	}
 	if ((s = NNI_ALLOC_STRUCT(s)) == NULL) {
-		nni_url_free(url);
 		return (NNG_ENOMEM);
 	}
-	s->url = url;
 	nni_mtx_init(&s->mtx);
 	nni_cv_init(&s->cv, &s->mtx);
 	NNI_LIST_INIT(&s->handlers, nni_http_handler, node);
@@ -852,6 +843,18 @@ http_server_init(nni_http_server **serverp, nni_url *url)
 		http_server_fini(s);
 		return (rv);
 	}
+
+	if ((strlen(url->u_port)) &&
+	    ((s->port = nni_strdup(url->u_port)) == NULL)) {
+		http_server_fini(s);
+		return (NNG_ENOMEM);
+	}
+	if ((strlen(url->u_hostname)) &&
+	    ((s->hostname = nni_strdup(url->u_hostname)) == NULL)) {
+		http_server_fini(s);
+		return (NNG_ENOMEM);
+	}
+
 #ifdef NNG_SUPP_TLS
 	if ((strcmp(url->u_scheme, "https") == 0) ||
 	    (strcmp(url->u_scheme, "wss") == 0)) {
@@ -872,9 +875,7 @@ http_server_init(nni_http_server **serverp, nni_url *url)
 		return (rv);
 	}
 	aio->a_addr = &s->addr;
-	host        = (strlen(url->u_hostname) != 0) ? url->u_hostname : NULL;
-	port        = (strlen(url->u_port) != 0) ? url->u_port : NULL;
-	nni_plat_tcp_resolv(host, port, NNG_AF_UNSPEC, true, aio);
+	nni_plat_tcp_resolv(s->hostname, s->port, NNG_AF_UNSPEC, true, aio);
 	nni_aio_wait(aio);
 	rv = nni_aio_result(aio);
 	nni_aio_fini(aio);
@@ -888,23 +889,17 @@ http_server_init(nni_http_server **serverp, nni_url *url)
 }
 
 int
-nni_http_server_init(nni_http_server **serverp, const char *urlstr)
+nni_http_server_init(nni_http_server **serverp, nni_url *url)
 {
 	int              rv;
 	nni_http_server *s;
-	nni_url *        url;
-
-	if ((rv = nni_url_parse(&url, urlstr)) != 0) {
-		return (rv);
-	}
 
 	nni_initialize(&http_server_initializer);
 
 	nni_mtx_lock(&http_servers_lk);
 	NNI_LIST_FOREACH (&http_servers, s) {
-		if ((strcmp(url->u_port, s->url->u_port) == 0) &&
-		    (strcmp(url->u_hostname, s->url->u_hostname) == 0)) {
-			nni_url_free(url);
+		if ((strcmp(url->u_port, s->port) == 0) &&
+		    (strcmp(url->u_hostname, s->hostname) == 0)) {
 			*serverp = s;
 			s->refcnt++;
 			nni_mtx_unlock(&http_servers_lk);
@@ -916,8 +911,6 @@ nni_http_server_init(nni_http_server **serverp, const char *urlstr)
 	if ((rv = http_server_init(&s, url)) == 0) {
 		nni_list_append(&http_servers, s);
 		*serverp = s;
-	} else {
-		nni_url_free(url);
 	}
 
 	nni_mtx_unlock(&http_servers_lk);
diff --git a/src/supplemental/websocket/websocket.c b/src/supplemental/websocket/websocket.c
index df404b81..8e75490b 100644
--- a/src/supplemental/websocket/websocket.c
+++ b/src/supplemental/websocket/websocket.c
@@ -1522,12 +1522,11 @@ err:
 }
 
 int
-nni_ws_listener_init(nni_ws_listener **wslp, const char *addr)
+nni_ws_listener_init(nni_ws_listener **wslp, nni_url *url)
 {
 	nni_ws_listener *l;
 	int              rv;
 	char *           host;
-	char *           serv;
 
 	if ((l = NNI_ALLOC_STRUCT(l)) == NULL) {
 		return (NNG_ENOMEM);
@@ -1539,7 +1538,8 @@ nni_ws_listener_init(nni_ws_listener **wslp, const char *addr)
 	NNI_LIST_INIT(&l->pend, nni_ws, node);
 	NNI_LIST_INIT(&l->reply, nni_ws, node);
 
-	if ((rv = nni_url_parse(&l->url, addr)) != 0) {
+	// make a private copy of the url structure.
+	if ((rv = nni_url_clone(&l->url, url)) != 0) {
 		nni_ws_listener_fini(l);
 		return (rv);
 	}
@@ -1548,12 +1548,7 @@ nni_ws_listener_init(nni_ws_listener **wslp, const char *addr)
 	if (strlen(host) == 0) {
 		host = NULL;
 	}
-	serv = l->url->u_port;
-	if (strlen(serv) == 0) {
-		serv = (strcmp(l->url->u_scheme, "wss") == 0) ? "443" : "80";
-	}
-
-	rv = nni_http_handler_init(&l->handler, l->url->u_path, ws_handler);
+	rv = nni_http_handler_init(&l->handler, url->u_path, ws_handler);
 	if (rv != 0) {
 		nni_ws_listener_fini(l);
 		return (rv);
@@ -1561,7 +1556,7 @@ nni_ws_listener_init(nni_ws_listener **wslp, const char *addr)
 
 	if (((rv = nni_http_handler_set_host(l->handler, host)) != 0) ||
 	    ((rv = nni_http_handler_set_data(l->handler, l, 0)) != 0) ||
-	    ((rv = nni_http_server_init(&l->server, addr)) != 0)) {
+	    ((rv = nni_http_server_init(&l->server, url)) != 0)) {
 		nni_ws_listener_fini(l);
 		return (rv);
 	}
@@ -1841,7 +1836,7 @@ nni_ws_dialer_fini(nni_ws_dialer *d)
 }
 
 int
-nni_ws_dialer_init(nni_ws_dialer **dp, const char *addr)
+nni_ws_dialer_init(nni_ws_dialer **dp, nni_url *url)
 {
 	nni_ws_dialer *d;
 	int            rv;
@@ -1853,12 +1848,12 @@ nni_ws_dialer_init(nni_ws_dialer **dp, const char *addr)
 	NNI_LIST_INIT(&d->wspend, nni_ws, node);
 	nni_mtx_init(&d->mtx);
 
-	if ((rv = nni_url_parse(&d->url, addr)) != 0) {
+	if ((rv = nni_url_clone(&d->url, url)) != 0) {
 		nni_ws_dialer_fini(d);
 		return (rv);
 	}
 
-	if ((rv = nni_http_client_init(&d->client, addr)) != 0) {
+	if ((rv = nni_http_client_init(&d->client, url)) != 0) {
 		nni_ws_dialer_fini(d);
 		return (rv);
 	}
diff --git a/src/supplemental/websocket/websocket.h b/src/supplemental/websocket/websocket.h
index ddd09b72..2cabb9cc 100644
--- a/src/supplemental/websocket/websocket.h
+++ b/src/supplemental/websocket/websocket.h
@@ -29,7 +29,7 @@ typedef int (*nni_ws_listen_hook)(void *, nni_http_req *, nni_http_res *);
 // on INADDR_ANY port 80, with path "/".  For connect side, INADDR_ANY
 // makes no sense.  (TBD: return NNG_EADDRINVAL, or try loopback?)
 
-extern int  nni_ws_listener_init(nni_ws_listener **, const char *);
+extern int  nni_ws_listener_init(nni_ws_listener **, nni_url *);
 extern void nni_ws_listener_fini(nni_ws_listener *);
 extern void nni_ws_listener_close(nni_ws_listener *);
 extern int  nni_ws_listener_proto(nni_ws_listener *, const char *);
@@ -40,7 +40,7 @@ extern void nni_ws_listener_hook(
 extern int nni_ws_listener_set_tls(nni_ws_listener *, nng_tls_config *);
 extern int nni_ws_listener_get_tls(nni_ws_listener *, nng_tls_config **s);
 
-extern int  nni_ws_dialer_init(nni_ws_dialer **, const char *);
+extern int  nni_ws_dialer_init(nni_ws_dialer **, nni_url *);
 extern void nni_ws_dialer_fini(nni_ws_dialer *);
 extern void nni_ws_dialer_close(nni_ws_dialer *);
 extern int  nni_ws_dialer_proto(nni_ws_dialer *, const char *);
diff --git a/src/transport/inproc/inproc.c b/src/transport/inproc/inproc.c
index 5b52e80a..4cd1c97d 100644
--- a/src/transport/inproc/inproc.c
+++ b/src/transport/inproc/inproc.c
@@ -47,7 +47,7 @@ struct nni_inproc_pair {
 };
 
 struct nni_inproc_ep {
-	char          addr[NNG_MAXADDRLEN + 1];
+	const char *  addr;
 	int           mode;
 	nni_list_node node;
 	uint16_t      proto;
@@ -190,13 +190,10 @@ nni_inproc_pipe_get_addr(void *arg, void *buf, size_t *szp)
 }
 
 static int
-nni_inproc_ep_init(void **epp, const char *url, nni_sock *sock, int mode)
+nni_inproc_ep_init(void **epp, nni_url *url, nni_sock *sock, int mode)
 {
 	nni_inproc_ep *ep;
 
-	if (strlen(url) > NNG_MAXADDRLEN - 1) {
-		return (NNG_EINVAL);
-	}
 	if ((ep = NNI_ALLOC_STRUCT(ep)) == NULL) {
 		return (NNG_ENOMEM);
 	}
@@ -206,8 +203,8 @@ nni_inproc_ep_init(void **epp, const char *url, nni_sock *sock, int mode)
 	NNI_LIST_INIT(&ep->clients, nni_inproc_ep, node);
 	nni_aio_list_init(&ep->aios);
 
-	(void) snprintf(ep->addr, sizeof(ep->addr), "%s", url);
-	*epp = ep;
+	ep->addr = url->u_rawurl; // we match on the full URL.
+	*epp     = ep;
 	return (0);
 }
 
diff --git a/src/transport/ipc/ipc.c b/src/transport/ipc/ipc.c
index 84292bb8..62751d86 100644
--- a/src/transport/ipc/ipc.c
+++ b/src/transport/ipc/ipc.c
@@ -529,17 +529,16 @@ nni_ipc_ep_fini(void *arg)
 }
 
 static int
-nni_ipc_ep_init(void **epp, const char *url, nni_sock *sock, int mode)
+nni_ipc_ep_init(void **epp, nni_url *url, nni_sock *sock, int mode)
 {
 	nni_ipc_ep *ep;
 	int         rv;
 	size_t      sz;
 
-	if (strncmp(url, "ipc://", strlen("ipc://")) != 0) {
-		return (NNG_EADDRINVAL);
+	if (((url->u_host != NULL) && (strlen(url->u_host) > 0)) ||
+	    (url->u_userinfo != NULL)) {
+		return (NNG_EINVAL);
 	}
-	url += strlen("ipc://");
-
 	if ((ep = NNI_ALLOC_STRUCT(ep)) == NULL) {
 		return (NNG_ENOMEM);
 	}
@@ -547,7 +546,7 @@ nni_ipc_ep_init(void **epp, const char *url, nni_sock *sock, int mode)
 	sz                           = sizeof(ep->sa.s_un.s_path.sa_path);
 	ep->sa.s_un.s_path.sa_family = NNG_AF_IPC;
 
-	if (nni_strlcpy(ep->sa.s_un.s_path.sa_path, url, sz) >= sz) {
+	if (nni_strlcpy(ep->sa.s_un.s_path.sa_path, url->u_path, sz) >= sz) {
 		NNI_FREE_STRUCT(ep);
 		return (NNG_EADDRINVAL);
 	}
diff --git a/src/transport/tcp/tcp.c b/src/transport/tcp/tcp.c
index 9110e31c..0a123a79 100644
--- a/src/transport/tcp/tcp.c
+++ b/src/transport/tcp/tcp.c
@@ -527,14 +527,13 @@ nni_tcp_ep_fini(void *arg)
 	if (ep->tep != NULL) {
 		nni_plat_tcp_ep_fini(ep->tep);
 	}
-	nni_url_free(ep->url);
 	nni_aio_fini(ep->aio);
 	nni_mtx_fini(&ep->mtx);
 	NNI_FREE_STRUCT(ep);
 }
 
 static int
-nni_tcp_ep_init(void **epp, const char *addr, nni_sock *sock, int mode)
+nni_tcp_ep_init(void **epp, nni_url *url, nni_sock *sock, int mode)
 {
 	nni_tcp_ep * ep;
 	int          rv;
@@ -543,24 +542,17 @@ nni_tcp_ep_init(void **epp, const char *addr, nni_sock *sock, int mode)
 	nni_sockaddr rsa, lsa;
 	nni_aio *    aio;
 	int          passive;
-	nni_url *    url;
 
-	if ((rv = nni_url_parse(&url, addr)) != 0) {
-		return (rv);
-	}
 	// Check for invalid URL components.
 	if ((strlen(url->u_path) != 0) && (strcmp(url->u_path, "/") != 0)) {
-		nni_url_free(url);
 		return (NNG_EADDRINVAL);
 	}
 	if ((url->u_fragment != NULL) || (url->u_userinfo != NULL) ||
 	    (url->u_query != NULL)) {
-		nni_url_free(url);
 		return (NNG_EADDRINVAL);
 	}
 
 	if ((rv = nni_aio_init(&aio, NULL, NULL)) != 0) {
-		nni_url_free(url);
 		return (rv);
 	}
 
@@ -582,7 +574,6 @@ nni_tcp_ep_init(void **epp, const char *addr, nni_sock *sock, int mode)
 		lsa.s_un.s_family = NNG_AF_UNSPEC;
 		aio->a_addr       = &rsa;
 		if ((host == NULL) || (serv == NULL)) {
-			nni_url_free(url);
 			nni_aio_fini(aio);
 			return (NNG_EADDRINVAL);
 		}
@@ -595,7 +586,6 @@ nni_tcp_ep_init(void **epp, const char *addr, nni_sock *sock, int mode)
 	nni_plat_tcp_resolv(host, serv, NNG_AF_UNSPEC, passive, aio);
 	nni_aio_wait(aio);
 	if ((rv = nni_aio_result(aio)) != 0) {
-		nni_url_free(url);
 		nni_aio_fini(aio);
 		return (rv);
 	}
@@ -603,7 +593,6 @@ nni_tcp_ep_init(void **epp, const char *addr, nni_sock *sock, int mode)
 	nni_aio_fini(aio);
 
 	if ((ep = NNI_ALLOC_STRUCT(ep)) == NULL) {
-		nni_url_free(url);
 		return (NNG_ENOMEM);
 	}
 	nni_mtx_init(&ep->mtx);
diff --git a/src/transport/tls/tls.c b/src/transport/tls/tls.c
index 753a1e75..6bc884e7 100644
--- a/src/transport/tls/tls.c
+++ b/src/transport/tls/tls.c
@@ -537,16 +537,13 @@ nni_tls_ep_fini(void *arg)
 	if (ep->cfg) {
 		nni_tls_config_fini(ep->cfg);
 	}
-	if (ep->url) {
-		nni_url_free(ep->url);
-	}
 	nni_aio_fini(ep->aio);
 	nni_mtx_fini(&ep->mtx);
 	NNI_FREE_STRUCT(ep);
 }
 
 static int
-nni_tls_ep_init(void **epp, const char *addr, nni_sock *sock, int mode)
+nni_tls_ep_init(void **epp, nni_url *url, nni_sock *sock, int mode)
 {
 	nni_tls_ep *      ep;
 	int               rv;
@@ -557,26 +554,17 @@ nni_tls_ep_init(void **epp, const char *addr, nni_sock *sock, int mode)
 	int               passive;
 	nng_tls_mode      tlsmode;
 	nng_tls_auth_mode authmode;
-	nni_url *         url;
-
-	// Parse the URLs first.
-	if ((rv = nni_url_parse(&url, addr)) != 0) {
-		return (rv);
-	}
 
 	// Check for invalid URL components.
 	if ((strlen(url->u_path) != 0) && (strcmp(url->u_path, "/") != 0)) {
-		nni_url_free(url);
 		return (NNG_EADDRINVAL);
 	}
 	if ((url->u_fragment != NULL) || (url->u_userinfo != NULL) ||
 	    (url->u_query != NULL)) {
-		nni_url_free(url);
 		return (NNG_EADDRINVAL);
 	}
 
 	if ((rv = nni_aio_init(&aio, NULL, NULL)) != 0) {
-		nni_url_free(url);
 		return (rv);
 	}
 
@@ -598,7 +586,6 @@ nni_tls_ep_init(void **epp, const char *addr, nni_sock *sock, int mode)
 		lsa.s_un.s_family = NNG_AF_UNSPEC;
 		aio->a_addr       = &rsa;
 		if ((host == NULL) || (serv == NULL)) {
-			nni_url_free(url);
 			nni_aio_fini(aio);
 			return (NNG_EADDRINVAL);
 		}
@@ -615,14 +602,12 @@ nni_tls_ep_init(void **epp, const char *addr, nni_sock *sock, int mode)
 	nni_plat_tcp_resolv(host, serv, NNG_AF_UNSPEC, passive, aio);
 	nni_aio_wait(aio);
 	if ((rv = nni_aio_result(aio)) != 0) {
-		nni_url_free(url);
 		nni_aio_fini(aio);
 		return (rv);
 	}
 	nni_aio_fini(aio);
 
 	if ((ep = NNI_ALLOC_STRUCT(ep)) == NULL) {
-		nni_url_free(url);
 		return (NNG_ENOMEM);
 	}
 	nni_mtx_init(&ep->mtx);
diff --git a/src/transport/ws/websocket.c b/src/transport/ws/websocket.c
index 4db4bc72..aead6f59 100644
--- a/src/transport/ws/websocket.c
+++ b/src/transport/ws/websocket.c
@@ -30,8 +30,7 @@ typedef struct ws_hdr {
 } ws_hdr;
 
 struct ws_ep {
-	int              mode; // NNI_EP_MODE_DIAL or NNI_EP_MODE_LISTEN
-	char *           addr;
+	int              mode;   // NNI_EP_MODE_DIAL or NNI_EP_MODE_LISTEN
 	uint16_t         lproto; // local protocol
 	uint16_t         rproto; // remote protocol
 	size_t           rcvmax;
@@ -605,7 +604,6 @@ ws_ep_fini(void *arg)
 		nni_strfree(hdr->value);
 		NNI_FREE_STRUCT(hdr);
 	}
-	nni_strfree(ep->addr);
 	nni_strfree(ep->protoname);
 	nni_mtx_fini(&ep->mtx);
 	NNI_FREE_STRUCT(ep);
@@ -694,7 +692,7 @@ ws_ep_acc_cb(void *arg)
 }
 
 static int
-ws_ep_init(void **epp, const char *url, nni_sock *sock, int mode)
+ws_ep_init(void **epp, nni_url *url, nni_sock *sock, int mode)
 {
 	ws_ep *     ep;
 	const char *pname;
@@ -721,9 +719,6 @@ ws_ep_init(void **epp, const char *url, nni_sock *sock, int mode)
 		rv    = nni_ws_listener_init(&ep->listener, url);
 	}
 
-	if ((rv == 0) && ((ep->addr = nni_strdup(url)) == NULL)) {
-		rv = NNG_ENOMEM;
-	}
 	if ((rv != 0) ||
 	    ((rv = nni_aio_init(&ep->connaio, ws_ep_conn_cb, ep)) != 0) ||
 	    ((rv = nni_aio_init(&ep->accaio, ws_ep_acc_cb, ep)) != 0) ||
diff --git a/src/transport/zerotier/zerotier.c b/src/transport/zerotier/zerotier.c
index cef31a29..2522138f 100644
--- a/src/transport/zerotier/zerotier.c
+++ b/src/transport/zerotier/zerotier.c
@@ -225,7 +225,6 @@ struct zt_creq {
 
 struct zt_ep {
 	nni_list_node ze_link;
-	char          ze_url[NNG_MAXADDRLEN];
 	char          ze_home[NNG_MAXADDRLEN]; // should be enough
 	zt_node *     ze_ztn;
 	uint64_t      ze_nwid;
@@ -2100,7 +2099,7 @@ zt_parsedec(const char **sp, uint64_t *valp)
 }
 
 static int
-zt_ep_init(void **epp, const char *url, nni_sock *sock, int mode)
+zt_ep_init(void **epp, nni_url *url, nni_sock *sock, int mode)
 {
 	zt_ep *     ep;
 	size_t      sz;
@@ -2127,24 +2126,18 @@ zt_ep_init(void **epp, const char *url, nni_sock *sock, int mode)
 	ep->ze_ping_count = zt_ping_count;
 	ep->ze_ping_time  = zt_ping_time;
 	ep->ze_proto      = nni_sock_proto(sock);
-	sz                = sizeof(ep->ze_url);
 
 	nni_aio_list_init(&ep->ze_aios);
 
-	if ((strncmp(url, "zt://", strlen("zt://")) != 0) ||
-	    (nni_strlcpy(ep->ze_url, url, sz) >= sz)) {
-		zt_ep_fini(ep);
-		return (NNG_EADDRINVAL);
-	}
 	rv = nni_aio_init(&ep->ze_creq_aio, zt_ep_conn_req_cb, ep);
 	if (rv != 0) {
 		zt_ep_fini(ep);
 		return (rv);
 	}
 
-	u = url + strlen("zt://");
-	// Parse the URL.
+	u = url->u_rawurl + strlen("zt://");
 
+	// Parse the URL.
 	switch (mode) {
 	case NNI_EP_MODE_DIAL:
 		// We require zt://<nwid>/<remotenode>:<port>