Merge branch 'fix_more_warnings' into 'master'

Fix more warnings

See merge request GNOME/glib!2048

gio/ginputstream.c

@@ -427,8 +427,10 @@ g_input_stream_real_skip (GInputStream  *stream,
                            NULL))
         {
           end = g_seekable_tell (seekable);
+          g_assert (start >= 0);
           g_assert (end >= start);
-          if (start > G_MAXSIZE - count || start + count > end)
+          if ((guint64) start > (G_MAXSIZE - count) ||
+              (start + count) > (guint64) end)
             {
               stream->priv->pending = TRUE;
               return end - start;

gio/gkeyfilesettingsbackend.c

@@ -66,9 +66,9 @@ typedef struct
   GHashTable        *system_locks; /* Used as a set, owning the strings it contains */
 
   gchar             *prefix;
-  gint               prefix_len;
+  gsize              prefix_len;
   gchar             *root_group;
-  gint               root_group_len;
+  gsize              root_group_len;
 
   GFile             *file;
   GFileMonitor      *file_monitor;
@@ -173,7 +173,9 @@ convert_path (GKeyfileSettingsBackend  *kfsb,
       /* if a root_group was specified, make sure the user hasn't given
        * a path that ghosts that group name
        */
-      if (last_slash != NULL && (last_slash - key) == kfsb->root_group_len && memcmp (key, kfsb->root_group, last_slash - key) == 0)
+      if (last_slash != NULL && last_slash - key >= 0 &&
+          (gsize) (last_slash - key) == kfsb->root_group_len &&
+          memcmp (key, kfsb->root_group, last_slash - key) == 0)
         return FALSE;
     }
   else

gio/gseekable.c

@@ -59,7 +59,8 @@ g_seekable_default_init (GSeekableInterface *iface)
  * 
  * Tells the current position within the stream.
  * 
- * Returns: the offset from the beginning of the buffer.
+ * Returns: the (positive or zero) offset from the beginning of the
+ * buffer, zero if the target is not seekable.
  **/
 goffset
 g_seekable_tell (GSeekable *seekable)

gio/tests/gdbus-example-server.c

@@ -276,7 +276,8 @@ static const GDBusInterfaceVTable interface_vtable =
 {
   handle_method_call,
   handle_get_property,
-  handle_set_property
+  handle_set_property,
+  { 0 }
 };
 
 /* ---------------------------------------------------------------------------------------------------- */

gio/tests/gdbus-example-subtree.c

@@ -72,7 +72,8 @@ const GDBusInterfaceVTable manager_vtable =
 {
   manager_method_call,
   NULL,                 /* get_property */
-  NULL                  /* set_property */
+  NULL,                 /* set_property */
+  { 0 }
 };
 
 /* ---------------------------------------------------------------------------------------------------- */
@@ -187,6 +188,7 @@ const GDBusInterfaceVTable block_vtable =
   block_method_call,
   block_get_property,
   block_set_property,
+  { 0 }
 };
 
 /* ---------------------------------------------------------------------------------------------------- */
@@ -223,8 +225,9 @@ partition_method_call (GDBusConnection       *connection,
 const GDBusInterfaceVTable partition_vtable =
 {
   partition_method_call,
-  //partition_get_property,
+  NULL,
-  //partition_set_property
+  NULL,
+  { 0 }
 };
 
 /* ---------------------------------------------------------------------------------------------------- */
@@ -321,7 +324,8 @@ const GDBusSubtreeVTable subtree_vtable =
 {
   subtree_enumerate,
   subtree_introspect,
-  subtree_dispatch
+  subtree_dispatch,
+  { 0 }
 };
 
 /* ---------------------------------------------------------------------------------------------------- */

gio/tests/gdbus-non-socket.c

@@ -112,7 +112,8 @@ pokee_method_call (GDBusConnection       *connection,
 static const GDBusInterfaceVTable pokee_vtable = {
   pokee_method_call,
   NULL, /* get_property */
-  NULL  /* set_property */
+  NULL, /* set_property */
+  { 0 }
 };
 
 /* Processes:

gio/tests/gdbus-proxy.c

@@ -132,7 +132,7 @@ test_methods (GDBusProxy *proxy)
 static gboolean
 strv_equal (gchar **strv, ...)
 {
-  gint count;
+  gsize count;
   va_list list;
   const gchar *str;
   gboolean res;

gio/tests/gnotification-server.c

@@ -220,7 +220,7 @@ g_notification_server_bus_acquired (GDBusConnection *connection,
                                     gpointer         user_data)
 {
   const GDBusInterfaceVTable vtable = {
-    org_gtk_Notifications_method_call, NULL, NULL
+    org_gtk_Notifications_method_call, NULL, NULL, { 0 }
   };
   GNotificationServer *server = user_data;
 

gio/tests/socket-common.c

@@ -45,7 +45,7 @@ static GSocketAddress *
 socket_address_from_string (const char *name)
 {
 #ifdef G_OS_UNIX
-  int i, len;
+  gsize i, len;
 
   for (i = 0; i < G_N_ELEMENTS (unix_socket_address_types); i++)
     {