1 files changed, 24 insertions, 0 deletions
diff --git a/tests/msdos-overlap b/tests/msdos-overlap
new file mode 100755
index 0000000..b2b03e6
--- /dev/null
+++ b/tests/msdos-overlap
@@ -0,0 +1,24 @@
+#!/usr/bin/python3
+"""
+    Write an overlapping partition to a msdos disk
+
+    Call with disk image/device to mangle
+"""
+import sys
+
+BAD_ENTRY = (0x72, 0xf5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+             0x01, 0x10, 0x83, 0x03, 0x20, 0x4f, 0x00, 0x08,
+             0x00, 0x00, 0x00, 0x20, 0x00, 0x00, 0x00, 0x00,
+             0x00, 0x50, 0x83, 0x00, 0x0a, 0x7a, 0xff, 0x27,
+             0x00, 0x00, 0x0a, 0x15, 0x00, 0x00, 0x00, 0x00 )
+OFFSET = 0x1b8
+
+if len(sys.argv) < 2:
+    print("%s: <image or device>" % sys.argv[0])
+    sys.exit(1)
+
+with open(sys.argv[1], "rb+") as f:
+    f.seek(OFFSET, 0)
+    f.write(bytes(bytearray(BAD_ENTRY)))
+
+sys.exit(0)