dbus-monitor: do not leak file descriptors from fd-passing

Bug: https://bugs.freedesktop.org/show_bug.cgi?id=80603
Reviewed-by: Simon McVittie <simon.mcvittie@collabora.co.uk>

1 files changed, 7 insertions, 0 deletions

diff --git a/tools/dbus-print-message.c b/tools/dbus-print-message.c
index e0dd2da6..320abd6f 100644
--- a/tools/dbus-print-message.c
+++ b/tools/dbus-print-message.c
@@ -352,6 +352,13 @@ print_iter (DBusMessageIter *iter, dbus_bool_t literal, int depth)
 	    int fd;
 	    dbus_message_iter_get_basic (iter, &fd);
 	    printf ("unix fd %d\n", fd);
+
+            /* dbus_message_iter_get_basic() duplicated the fd, we need to
+             * close it after use. The original fd will be closed when the
+             * DBusMessage is released.
+             */
+            close (fd);
+
 	    break;
 	  }