splice
struct splice accept_splice, connect_splice;
struct splice accept_splice, connect_splice;
} else if (m->m_len < sizeof(struct splice)) {
mtod(m, struct splice *)->sp_fd,
mtod(m, struct splice *)->sp_max,
&mtod(m, struct splice *)->sp_idle);
argv[0] = splice(argv[0], argv[1]);
argv[1] = splice(argv[1], argv[0]);
char *splice(char *, char *);
struct splice sp;