add option to bind socket to specified interface (e.g. localhost) only

[hmcfgusb] / hmcfgusb.c

diff --git a/hmcfgusb.c b/hmcfgusb.c
index bfe0369d28ca865deb0840219ed307eb2782bd7f..7ec07142553c45b86a587df47c2213632eb7f7df 100644 (file)
--- a/hmcfgusb.c
+++ b/hmcfgusb.c
@@ -225,7 +225,17 @@ static void LIBUSB_CALL hmcfgusb_interrupt(struct libusb_transfer *transfer)
                if (cb_data && cb_data->cb) {
                        if (debug)
                                hexdump(transfer->buffer, transfer->actual_length, "USB > ");
-                       cb_data->cb(transfer->buffer, transfer->actual_length, cb_data->data);
+
+                       if (!cb_data->cb(transfer->buffer, transfer->actual_length, cb_data->data)) {
+                               quit = EIO;
+
+                               if (cb_data && cb_data->dev && cb_data->dev->transfer) {
+                                       libusb_free_transfer(cb_data->dev->transfer);
+                                       cb_data->dev->transfer = NULL;
+                               }
+
+                               return;
+                       }
                } else {
                        hexdump(transfer->buffer, transfer->actual_length, "> ");
                }
@@ -234,7 +244,6 @@ static void LIBUSB_CALL hmcfgusb_interrupt(struct libusb_transfer *transfer)
        err = libusb_submit_transfer(transfer);
        if (err != 0) {
                fprintf(stderr, "Can't re-submit transfer: %s\n", usb_strerror(err));
-               free(transfer->buffer);
                libusb_free_transfer(transfer);
        }
 }