config rotation + redundancy prototype

src/fileutils.h

@@ -22,5 +22,9 @@
 #include <stdio.h>
 
 FILE* ps_fopen(const char* path, const char* mode);
+bool moveFiles(const char* src, const char* dest);
+bool deleteFile(const char* path);
+// returns 1 if file exists, 0 if it doesn't and -1 on error.
+int fileExists(const char* path);
 
 #endif