Don't publish empty barcodes

2018-01-25 21:05:52 -06:00 · 2018-01-25 21:05:52 -06:00 · 1cac8c8da5
commit 1cac8c8da5
parent fcaca85066
1 changed files with 5 additions and 0 deletions
--- a/barcode_service/barcode_service.c
+++ b/barcode_service/barcode_service.c
@ -48,6 +48,11 @@ main(int argc, char **argv)
  while (true)
  {
    barcode = await_next_barcode(input_fd);
+    if (barcode[0] == '\x00')
+    {
+      /* Newline is pressed twice. Ignore any 'empty' barcodes. */
+      continue;
+    }
    if (zsock_send(zsock, "s", barcode) < 0)
    {
      fprintf(stderr, "Sending barcode failed!\n");