raop: Use the port supplied by avahi when connecting to RAOP devices.

The Apple TV for example uses a non-default port, but we previously ignored
this. We now correctly parse the server string but in so doing, we end up
parsing the address twice. As we need a pure IP/hostname of the device itself
to use in our requests, this is somewhat unavoidable.

Sadly there are still other problems with Apple TVs, but this is still
one step closer.

Fixes part of #950

src/modules/raop/module-raop-discover.c

@@ -186,24 +186,18 @@ static void resolver_cb(
         }
         pa_xfree(dname);
 
-        /*
-         TODO: allow this syntax of server name in things....
-        args = pa_sprintf_malloc("server=[%s]:%u "
-                                 "sink_name=%s",
-                                 avahi_address_snprint(at, sizeof(at), a), port,
-                                 vname);*/
         if (nicename) {
-            args = pa_sprintf_malloc("server=%s "
+            args = pa_sprintf_malloc("server=[%s]:%u "
                                      "sink_name=%s "
                                      "sink_properties=device.description=\"%s\"",
-                                     avahi_address_snprint(at, sizeof(at), a),
+                                     avahi_address_snprint(at, sizeof(at), a), port,
                                      vname,
                                      nicename);
 
         } else {
-            args = pa_sprintf_malloc("server=%s "
+            args = pa_sprintf_malloc("server=[%s]:%u "
                                      "sink_name=%s",
-                                     avahi_address_snprint(at, sizeof(at), a),
+                                     avahi_address_snprint(at, sizeof(at), a), port,
                                      vname);
         }
 

src/modules/raop/raop_client.c

@@ -47,6 +47,7 @@
 #include <pulsecore/iochannel.h>
 #include <pulsecore/socket-util.h>
 #include <pulsecore/log.h>
+#include <pulsecore/parseaddr.h>
 #include <pulsecore/macro.h>
 #include <pulsecore/memchunk.h>
 #include <pulsecore/random.h>
@@ -67,10 +68,13 @@
 #define VOLUME_MIN -144
 #define VOLUME_MAX 0
 
+#define RAOP_PORT 5000
+
 
 struct pa_raop_client {
     pa_core *core;
     char *host;
+    uint16_t port;
     char *sid;
     pa_rtsp_client *rtsp;
 
@@ -363,14 +367,23 @@ static void rtsp_cb(pa_rtsp_client *rtsp, pa_rtsp_state state, pa_headerlist* he
 }
 
 pa_raop_client* pa_raop_client_new(pa_core *core, const char* host) {
+    pa_parsed_address a;
     pa_raop_client* c = pa_xnew0(pa_raop_client, 1);
 
     pa_assert(core);
     pa_assert(host);
 
+    if (pa_parse_address(host, &a) < 0 || a.type == PA_PARSED_ADDRESS_UNIX)
+        return NULL;
+
     c->core = core;
     c->fd = -1;
-    c->host = pa_xstrdup(host);
+
+    c->host = pa_xstrdup(a.path_or_host);
+    if (a.port)
+        c->port = a.port;
+    else
+        c->port = RAOP_PORT;
 
     if (pa_raop_connect(c)) {
         pa_raop_client_free(c);
@@ -407,7 +420,7 @@ int pa_raop_connect(pa_raop_client* c) {
         return 0;
     }
 
-    c->rtsp = pa_rtsp_client_new(c->core->mainloop, c->host, 5000, "iTunes/4.6 (Macintosh; U; PPC Mac OS X 10.3)");
+    c->rtsp = pa_rtsp_client_new(c->core->mainloop, c->host, c->port, "iTunes/4.6 (Macintosh; U; PPC Mac OS X 10.3)");
 
     /* Initialise the AES encryption system */
     pa_random(c->aes_iv, sizeof(c->aes_iv));

src/modules/rtp/rtsp_client.c

@@ -324,6 +324,7 @@ int pa_rtsp_connect(pa_rtsp_client *c) {
     pa_xfree(c->session);
     c->session = NULL;
 
+    pa_log_debug("Attempting to connect to server '%s:%d'", c->hostname, c->port);
     if (!(c->sc = pa_socket_client_new_string(c->mainloop, TRUE, c->hostname, c->port))) {
         pa_log("failed to connect to server '%s:%d'", c->hostname, c->port);
         return -1;