From 59e80c5711190ee0d3d304625b691c139e2bae27 Mon Sep 17 00:00:00 2001 From: brian Date: Mon, 26 Jul 1999 12:11:10 +0000 Subject: Don't complain if 0 bytes are written to the tun device, simply do nothing. --- sys/net/if_tun.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'sys/net/if_tun.c') diff --git a/sys/net/if_tun.c b/sys/net/if_tun.c index 6e8c479..16542de 100644 --- a/sys/net/if_tun.c +++ b/sys/net/if_tun.c @@ -590,7 +590,10 @@ tunwrite(dev, uio, flag) TUNDEBUG("%s%d: tunwrite\n", ifp->if_name, ifp->if_unit); - if (uio->uio_resid <= 0 || uio->uio_resid > TUNMRU) { + if (uio->uio_resid == 0) + return 0; + + if (uio->uio_resid < 0 || uio->uio_resid > TUNMRU) { TUNDEBUG("%s%d: len=%d!\n", ifp->if_name, ifp->if_unit, uio->uio_resid); return EIO; -- cgit v1.1