_FN0("random-integer", 0, sexp_rand),
_FN1(SEXP_FIXNUM, "random-seed", 0, sexp_srand),
_FN0("current-directory", 0, sexp_getwd),
_FN0("current-user", 0, sexp_getuser),
_FN0("system-name", 0, sexp_sysname),
_FN1(SEXP_IPORT, "port-fileno", 0, sexp_fileno),
_FN2(SEXP_FIXNUM, SEXP_STRING, "fileno->port", 0, sexp_fdopen),
_FN0("fork", 0, sexp_fork),
_FN2(SEXP_STRING, SEXP_PAIR, "exec", 0, sexp_exec),
_FN1(SEXP_STRING, "exits", 0, sexp_exits),
_FN2(SEXP_FIXNUM, SEXP_FIXNUM, "dup", 0, sexp_dup),
_FN0("pipe", 0, sexp_pipe),
_FN1(SEXP_FIXNUM, "sleep", 0, sexp_sleep),
_FN1(SEXP_STRING, "getenv", 0, sexp_getenv),
_FN1(SEXP_STRING, "change-directory", 0, sexp_chdir),
_FN0("wait", 0, sexp_wait),
_FN2(SEXP_FIXNUM, SEXP_STRING, "post-note", 0, sexp_postnote),
_FN4(SEXP_PAIR, SEXP_STRING, "%postmountsrv", 0, sexp_postmountsrv),