1 #include "fd.h" 2 fd_move(to,from)3 int fd_move(to,from) 4 int to; 5 int from; 6 { 7 if (to == from) return 0; 8 if (fd_copy(to,from) == -1) return -1; 9 close(from); 10 return 0; 11 } 12