Fix HTTP request creation and simple client example

src/client.c

@@ -249,16 +249,22 @@ void http_request_builder_url(HTTP_RequestBuilder builder,
     // Write method
     HTTP_String method_str = get_method_string(method);
     byte_queue_write(&conn->output, method_str.ptr, method_str.len);
+    byte_queue_write(&conn->output, " ", 1);
 
-    byte_queue_write(&conn->output, conn->url.path.ptr, conn->url.path.len);
+    // Write path
+    if (conn->url.path.len == 0)
+        byte_queue_write(&conn->output, "/", 1);
+    else
+        byte_queue_write(&conn->output, conn->url.path.ptr, conn->url.path.len);
 
+    // Write query string
     HTTP_String query = conn->url.query;
     if (query.len > 0) {
         byte_queue_write(&conn->output, "?", 1);
         byte_queue_write(&conn->output, query.ptr, query.len);
     }
 
-    HTTP_String version = HTTP_STR("HTTP/1.1");
+    HTTP_String version = HTTP_STR(" HTTP/1.1");
     byte_queue_write(&conn->output, version.ptr, version.len);
 
     byte_queue_write(&conn->output, "\r\n", 2);

src/socket.c

@@ -335,7 +335,12 @@ static void socket_update(Socket *s)
                         continue;
                     }
                 }
-                AddressAndPort addr = s->addrs[s->next_addr];
+
+                AddressAndPort addr;
+                if (s->num_addr == 1)
+                    addr = s->addr;
+                else
+                    addr = s->addrs[s->next_addr];
 
                 int family = (addr.is_ipv4 ? AF_INET : AF_INET6);
                 NATIVE_SOCKET sock = socket(family, SOCK_STREAM, 0);
@@ -1011,6 +1016,8 @@ int socket_connect(SocketManager *sm, int num_targets,
         s->client_secure_context = &sm->client_secure_context;
 #endif
     sm->num_used++;
+
+    socket_update(s);
     return 0;
 }