bsd/kern/uipc_syscalls.c

2062 	struct writev_nocancel_args nuap;
2182 			bzero(&nuap, sizeof (struct writev_args));
2183 			nuap.fd = uap->s;
2184 			nuap.iovp = user_hdtr.headers;
2185 			nuap.iovcnt = user_hdtr.hdr_cnt;
2186 			error = writev_nocancel(p, &nuap, &writev_retval);
2432 		bzero(&nuap, sizeof (struct writev_args));
2433 		nuap.fd = uap->s;
2434 		nuap.iovp = user_hdtr.trailers;
2435 		nuap.iovcnt = user_hdtr.trl_cnt;
2436 		error = writev_nocancel(p, &nuap, &writev_retval);