[PATCH v30 2/4] plugplay: Separate deep-copying the received event into new_event.

[Vibhav Pant]

From: Vibhav Pant

---
 programs/plugplay/main.c | 49 ++++++++++++++++++++++++----------------
 1 file changed, 29 insertions(+), 20 deletions(-)

diff --git a/programs/plugplay/main.c b/programs/plugplay/main.c
index 96dce92f64c..e1d75b68dcb 100644
--- a/programs/plugplay/main.c
+++ b/programs/plugplay/main.c
@@ -157,6 +157,33 @@ void __cdecl plugplay_unregister_listener( plugplay_rpc_handle handle )
     destroy_listener( handle );
 }

+static struct event *new_event( DWORD event_code, const struct device_broadcast *src )
+{
+    struct event *event;
+
+    event = calloc( 1, sizeof( *event ) );
+    if (!event) return NULL;
+
+    event->code = event_code;
+    event->data = *src;
+    if (src->devicetype == DBT_DEVTYP_DEVICEINTERFACE)
+    {
+        const struct device_broadcast_deviceinterface *event_iface = &src->event.device_interface;
+        SIZE_T name_size = (wcslen( event_iface->name ) + 1) * sizeof(WCHAR);
+        WCHAR *name = malloc( name_size );
+
+        if (!name)
+        {
+            free( event );
+            return NULL;
+        }
+        memcpy( name, event_iface->name, name_size );
+        event->data.event.device_interface.name = name;
+    }
+
+    return event;
+}
+
 void __cdecl plugplay_send_event( DWORD code, const struct device_broadcast *data )
 {
     struct listener *listener;
@@ -188,26 +215,8 @@ void __cdecl plugplay_send_event( DWORD code, const struct device_broadcast *dat

LIST_FOR_EACH_ENTRY(listener, &listener_list, struct listener, entry)
     {
-        const struct device_broadcast_deviceinterface *event_iface = &data->event.device_interface;
-        SIZE_T name_size = (wcslen( event_iface->name ) + 1) * sizeof(WCHAR);
-        struct event *event;
-        WCHAR *name;
-
-        event = calloc( 1, sizeof( *event ) );
-        if (!event) continue;
-
-        event->code = code;
-        event->data = *data;
-
-        name = malloc( name_size );
-        if (!name)
-        {
-            free( event );
-            continue;
-        }
-
-        memcpy( name, event_iface->name, name_size );
-        event->data.event.device_interface.name = name;
+        struct event *event = new_event( code, data );
+        if (!event) break;

list_add_tail( &listener->events, &event->entry );
         WakeConditionVariable( &listener->cv );