dupfd             103 lib/dup2.c           int r = dupfd (fd, desired_fd);
dupfd             126 lib/dup2.c       result = dupfd (fd, desired_fd);
dupfd             178 lib/fcntl.c            result = dupfd (fd, target, 0);
dupfd             219 lib/fcntl.c            result = dupfd (fd, target, O_CLOEXEC);