diff options
| -rw-r--r-- | scripts/signrom.py | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/scripts/signrom.py b/scripts/signrom.py index 6c8b9bf406..5629bca222 100644 --- a/scripts/signrom.py +++ b/scripts/signrom.py @@ -17,7 +17,10 @@ if len(sys.argv) < 3: fin = open(sys.argv[1], 'rb') fout = open(sys.argv[2], 'wb') -fin.seek(2) +magic = fin.read(2) +if magic != '\x55\xaa': + sys.exit("%s: option ROM does not begin with magic 55 aa" % sys.argv[1]) + size_byte = ord(fin.read(1)) fin.seek(0) |