Index: uipc_socket.c
===================================================================
RCS file: /cvs/openbsd/src/sys/kern/uipc_socket.c,v
retrieving revision 1.63
diff -u -r1.63 uipc_socket.c
--- uipc_socket.c	4 Mar 2006 22:40:15 -0000	1.63
+++ uipc_socket.c	6 Mar 2006 21:40:28 -0000
@@ -424,7 +424,7 @@
 		if ((atomic && resid > so->so_snd.sb_hiwat) ||
 		    clen > so->so_snd.sb_hiwat)
 			snderr(EMSGSIZE);
-		if (space < resid + clen && uio &&
+		if (space < resid + clen &&
 		    (atomic || space < so->so_snd.sb_lowat || space < clen)) {
 			if (so->so_state & SS_NBIO)
 				snderr(EWOULDBLOCK);