113         iov[1].iov_len = 0;  in sopreprbuf()
115 		iov[0].iov_len = sb->sb_rptr - sb->sb_wptr;  in sopreprbuf()
117 		if (iov[0].iov_len > len)  in sopreprbuf()
118 		   iov[0].iov_len = len;  in sopreprbuf()
119 		if (iov[0].iov_len > mss)  in sopreprbuf()
120 		   iov[0].iov_len -= iov[0].iov_len%mss;  in sopreprbuf()
123 		iov[0].iov_len = (sb->sb_data + sb->sb_datalen) - sb->sb_wptr;  in sopreprbuf()
125 		if (iov[0].iov_len > len) iov[0].iov_len = len;  in sopreprbuf()
126 		len -= iov[0].iov_len;  in sopreprbuf()
129 			iov[1].iov_len = sb->sb_rptr - sb->sb_data;  in sopreprbuf()
130 			if(iov[1].iov_len > len)  in sopreprbuf()
131 			   iov[1].iov_len = len;  in sopreprbuf()
132 			total = iov[0].iov_len + iov[1].iov_len;  in sopreprbuf()
135 				if (iov[1].iov_len > lss) {  in sopreprbuf()
136 					iov[1].iov_len -= lss;  in sopreprbuf()
139 					lss -= iov[1].iov_len;  in sopreprbuf()
140 					iov[0].iov_len -= lss;  in sopreprbuf()
146 			if (iov[0].iov_len > mss)  in sopreprbuf()
147 			   iov[0].iov_len -= iov[0].iov_len%mss;  in sopreprbuf()
154 	return iov[0].iov_len + (n - 1) * iov[1].iov_len;  in sopreprbuf()
182 	nn = socket_recv(so->s, iov[0].iov_base, iov[0].iov_len);  in soread()
205 	if (n == 2 && nn == iov[0].iov_len) {  in soread()
207             ret = socket_recv(so->s, iov[1].iov_base, iov[1].iov_len);  in soread()
239     nn = MIN(iov[0].iov_len, copy);  in soreadbuf()
383         iov[1].iov_len = 0;  in sowrite()
385 		iov[0].iov_len = sb->sb_wptr - sb->sb_rptr;  in sowrite()
387 		if (iov[0].iov_len > len) iov[0].iov_len = len;  in sowrite()
390 		iov[0].iov_len = (sb->sb_data + sb->sb_datalen) - sb->sb_rptr;  in sowrite()
391 		if (iov[0].iov_len > len) iov[0].iov_len = len;  in sowrite()
392 		len -= iov[0].iov_len;  in sowrite()
395 			iov[1].iov_len = sb->sb_wptr - sb->sb_data;  in sowrite()
396 			if (iov[1].iov_len > len) iov[1].iov_len = len;  in sowrite()
408 	nn = socket_send(so->s, iov[0].iov_base, iov[0].iov_len);  in sowrite()
423 	if (n == 2 && nn == iov[0].iov_len) {  in sowrite()
425             ret = socket_send(so->s, iov[1].iov_base, iov[1].iov_len);  in sowrite()