From c07b55e62baeff49586a8e0d58dc4f2de3093aa7 Mon Sep 17 00:00:00 2001
From: Sylvestre Gallon <syl@cvs.openbsd.org>
Date: Wed, 29 Jan 2014 20:37:19 +0000
Subject: Add fuse support for IO_APPEND.

ok beck@
---
 sys/miscfs/fuse/fuse_vnops.c | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

(limited to 'sys/miscfs')

diff --git a/sys/miscfs/fuse/fuse_vnops.c b/sys/miscfs/fuse/fuse_vnops.c
index 6d514bb203d..f5fb08a6dd5 100644
--- a/sys/miscfs/fuse/fuse_vnops.c
+++ b/sys/miscfs/fuse/fuse_vnops.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: fuse_vnops.c,v 1.13 2014/01/16 09:31:44 syl Exp $ */
+/* $OpenBSD: fuse_vnops.c,v 1.14 2014/01/29 20:37:18 syl Exp $ */
 /*
  * Copyright (c) 2012-2013 Sylvestre Gallon <ccna.syl@gmail.com>
  *
@@ -23,6 +23,7 @@
 #include <sys/mount.h>
 #include <sys/namei.h>
 #include <sys/poll.h>
+#include <sys/proc.h>
 #include <sys/specdev.h>
 #include <sys/statvfs.h>
 #include <sys/vnode.h>
@@ -1011,6 +1012,9 @@ fusefs_write(void *v)
 	struct vnode *vp = ap->a_vp;
 	struct uio *uio = ap->a_uio;
 	struct proc *p = uio->uio_procp;
+	struct ucred *cred = p->p_ucred;
+	struct vattr vattr;
+	int ioflag = ap->a_ioflag;
 	struct fusefs_node *ip;
 	struct fusefs_mnt *fmp;
 	struct fusebuf *fbuf = NULL;
@@ -1025,6 +1029,13 @@ fusefs_write(void *v)
 	if (uio->uio_resid == 0)
 		return (error);
 
+	if (ioflag & IO_APPEND) {
+		if ((error = VOP_GETATTR(vp, &vattr, cred, p)) != 0)
+			return (error);
+
+		uio->uio_offset = vattr.va_size;
+	}
+
 	while (uio->uio_resid > 0) {
 		len = MIN(uio->uio_resid, FUSEBUFMAXSIZE);
 		fbuf = fb_setup(len, ip->ufs_ino.i_number, FBT_WRITE, p);
-- 
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