r2436: the second big lump of posix vfs code.

this is still just a skeleton, and many of the functions are just
based on the simple vfs backend, they are there to allow me to run
smbtorture tests against the real parts of the posix backend.
(This used to be commit f2fa7fe565e89360dba3bb5434d3a6a36f398348)

1 files changed, 79 insertions, 0 deletions

diff --git a/source4/ntvfs/posix/pvfs_write.c b/source4/ntvfs/posix/pvfs_write.c
new file mode 100644
index 0000000000..4194ced431
--- /dev/null
+++ b/source4/ntvfs/posix/pvfs_write.c
@@ -0,0 +1,79 @@
+/* 
+   Unix SMB/CIFS implementation.
+
+   POSIX NTVFS backend - write
+
+   Copyright (C) Andrew Tridgell 2004
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+   
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include "include/includes.h"
+#include "vfs_posix.h"
+
+
+/*
+  write to a file
+*/
+NTSTATUS pvfs_write(struct smbsrv_request *req, union smb_write *wr)
+{
+	struct pvfs_private *pvfs = req->tcon->ntvfs_private;
+	ssize_t ret;
+	struct pvfs_file *f;
+
+	switch (wr->generic.level) {
+	case RAW_WRITE_WRITEX:
+		f = pvfs_find_fd(pvfs, wr->writex.in.fnum);
+		if (!f) {
+			return NT_STATUS_INVALID_HANDLE;
+		}
+		ret = pwrite(f->fd, 
+			     wr->writex.in.data, 
+			     wr->writex.in.count,
+			     wr->writex.in.offset);
+		if (ret == -1) {
+			return map_nt_error_from_unix(errno);
+		}
+		
+		wr->writex.out.nwritten = ret;
+		wr->writex.out.remaining = 0; /* should fill this in? */
+
+		return NT_STATUS_OK;
+
+	case RAW_WRITE_WRITE:
+		f = pvfs_find_fd(pvfs, wr->write.in.fnum);
+		if (!f) {
+			return NT_STATUS_INVALID_HANDLE;
+		}
+		if (wr->write.in.count == 0) {
+			/* a truncate! */
+			ret = ftruncate(f->fd, wr->write.in.offset);
+		} else {
+			ret = pwrite(f->fd,
+				     wr->write.in.data, 
+				     wr->write.in.count,
+				     wr->write.in.offset);
+		}
+		if (ret == -1) {
+			return pvfs_map_errno(pvfs, errno);
+		}
+		
+		wr->write.out.nwritten = ret;
+
+		return NT_STATUS_OK;
+	}
+
+	return NT_STATUS_NOT_SUPPORTED;
+}