1455 check_fd(const char *name, int mode, const char **emsgp)  in check_fd()  argument
1460 		return (coproc_getfd(mode, emsgp));  in check_fd()
1464 			if (emsgp)  in check_fd()
1465 				*emsgp = "file descriptor too large";  in check_fd()
1471 		if (emsgp)  in check_fd()
1472 			*emsgp = "illegal file descriptor name";  in check_fd()
1476 		if (emsgp)  in check_fd()
1477 			*emsgp = "bad file descriptor";  in check_fd()
1489 		if (emsgp)  in check_fd()
1490 			*emsgp = (fl == O_WRONLY) ?  in check_fd()
1549 coproc_getfd(int mode, const char **emsgp)  in coproc_getfd()  argument
1555 	if (emsgp)  in coproc_getfd()
1556 		*emsgp = "no coprocess";  in coproc_getfd()