-int para_munmap(void *start, size_t length);
-int para_write_file(const char *filename, const void *buf, size_t size);
+int adu_munmap(void *start, size_t length);
+int adu_write_file(const char *filename, const void *buf, size_t size);
+int mkpath(const char *p, mode_t mode);