diff options
| author | brian <brian@cvs.openbsd.org> | 1999-07-24 03:18:33 +0000 |
|---|---|---|
| committer | brian <brian@cvs.openbsd.org> | 1999-07-24 03:18:33 +0000 |
| commit | 7f2d908da2f6727a325f1cfeffeb323ce861294e (patch) | |
| tree | 4c4308de5f890d6f5cc184041ae6aff585fb5528 | |
| parent | c5927383e2dc5316aa4428bd8645368628b12f41 (diff) | |
Return EMSGSIZE for zero length writes - don't panic.
| -rw-r--r-- | sys/net/if_tun.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/sys/net/if_tun.c b/sys/net/if_tun.c index 2b1cb7e95e6..6beafcb183a 100644 --- a/sys/net/if_tun.c +++ b/sys/net/if_tun.c @@ -1,4 +1,4 @@ -/* $OpenBSD: if_tun.c,v 1.25 1999/04/22 20:02:44 art Exp $ */ +/* $OpenBSD: if_tun.c,v 1.26 1999/07/24 03:18:32 brian Exp $ */ /* $NetBSD: if_tun.c,v 1.24 1996/05/07 02:40:48 thorpej Exp $ */ /* @@ -554,7 +554,7 @@ tunwrite(dev, uio, ioflag) ifp = &tunctl[unit].tun_if; TUNDEBUG(("%s: tunwrite\n", ifp->if_xname)); - if (uio->uio_resid < 0 || uio->uio_resid > TUNMRU) { + if (uio->uio_resid == 0 || uio->uio_resid > TUNMRU) { TUNDEBUG(("%s: len=%d!\n", ifp->if_xname, uio->uio_resid)); return EMSGSIZE; } |