1 files changed, 61 insertions, 0 deletions
diff --git a/app/key.c b/app/key.c
new file mode 100644
index 0000000..6449216
--- /dev/null
+++ b/app/key.c
@@ -0,0 +1,61 @@
+#include "project.h"
+
+
+int have_key;
+
+static size_t key_len;
+
+static uint8_t key[512];
+
+
+void
+key_wipe (void)
+{
+  have_key = 0;
+  locked = 0;
+  memset (key, 0, sizeof (key));
+}
+
+
+void
+key_set (char *in, size_t len)
+{
+  if (len > sizeof (key))
+    len = sizeof (key);
+  memcpy (key, in, len);
+  key_len = len;
+  locked = 0;
+  have_key = 1;
+}
+
+
+void
+key_send (void)
+{
+  size_t i;
+  if (!have_key)
+    {
+      send_str ("*no key*\n");
+      return;
+    }
+  if (locked)
+    {
+      send_str ("*locked*\n");
+      return;
+    }
+
+  for (i = 0; i < key_len; ++i)
+    {
+      send_ascii (key[i]);
+    }
+
+  locked++;
+}
+
+
+void
+key_init (void)
+{
+  key_wipe ();
+  have_key = 0;
+}