initial commit - import mediafire-shell sources

keys.c

@@ -0,0 +1,21 @@
+#include <stdio.h>
+#include <inttypes.h>
+
+#include "mfshell.h"
+#include "private.h"
+
+void
+_update_secret_key(mfshell_t *mfshell)
+{
+    uint64_t    new_val;
+
+    if(mfshell == NULL) return;
+
+    new_val = ((uint64_t)mfshell->secret_key) * 16807;
+    new_val %= 0x7FFFFFFF;
+
+    mfshell->secret_key = new_val;
+
+    return;
+}
+