usb: Add hyphen to new style UDIDs introduced with iPhone XS/XR

1 files changed, 8 insertions, 1 deletions

diff --git a/src/usb.c b/src/usb.c
index 0977c24..44c33ce 100644
--- a/src/usb.c
+++ b/src/usb.c
@@ -277,12 +277,19 @@ static void get_serial_callback(struct libusb_transfer *transfer)
                 else
                         usbdev->serial[di++] = data[si];
         }
-        usbdev->serial[di] = 0;
+        usbdev->serial[di] = '\0';
 
         usbmuxd_log(LL_INFO, "Got serial '%s' for device %d-%d", usbdev->serial, usbdev->bus, usbdev->address);
 
         libusb_free_transfer(transfer);
 
+        /* new style UDID: add hyphen between first 8 and following 16 digits */
+        if (di == 24) {
+                memmove(&usbdev->serial[9], &usbdev->serial[8], 16);
+                usbdev->serial[8] = '-';
+                usbdev->serial[di+1] = '\0';
+        }
+
         /* Finish setup now */
         if(device_add(usbdev) < 0) {
                 usb_disconnect(usbdev);