ctf_fdcreate
cup->cu_ctfp = ctf_fdcreate(cup->cu_fd, &ret);
empty = ctf_fdcreate(cmh->cmh_ofd, &ret);
out = ctf_fdcreate(cmh->cmh_ofd, &err);
extern ctf_file_t *ctf_fdcreate(int, int *);