nginx-0.0.3-2004-04-13-09:27:03 import
diff --git a/src/os/unix/ngx_linux_init.c b/src/os/unix/ngx_linux_init.c
index 387a491..ea2e812 100644
--- a/src/os/unix/ngx_linux_init.c
+++ b/src/os/unix/ngx_linux_init.c
@@ -9,10 +9,15 @@
 
 ngx_os_io_t ngx_os_io = {
     ngx_unix_recv,
+    ngx_readv_chain,
     NULL,
-    NULL,
+#if (HAVE_SENDFILE)
     ngx_linux_sendfile_chain,
     NGX_IO_SENDFILE
+#else
+    ngx_writev_chain,
+    0
+#endif
 };
 
 
diff --git a/src/os/unix/ngx_solaris_init.c b/src/os/unix/ngx_solaris_init.c
index b2aba61..8f2e484 100644
--- a/src/os/unix/ngx_solaris_init.c
+++ b/src/os/unix/ngx_solaris_init.c
@@ -10,7 +10,7 @@
 
 ngx_os_io_t ngx_os_io = {
     ngx_unix_recv,
-    NULL,
+    ngx_readv_chain,
     NULL,
 #if (HAVE_SENDFILE)
     ngx_solaris_sendfilev_chain,