ref: 041d3c9d8de4ed92c5cafc3c12c5170113e55677 dir: /libnpe/rename.c/
#include <unistd.h> int rename(char *old, char *new) { Dir d; nulldir(&d); d.name = new; return dirwstat(old, &d) > 0 ? 0 : -1; }