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fdc9f417d8
definitions for security access masks, in security.idl The previous definitions were inconsistently named, and contained many duplicate and misleading entries. I kept finding myself tripping up while using them. (This used to be commit 01c0fa722f80ceeb3f81f01987de95f365a2ed3d)
90 lines
2.2 KiB
C
90 lines
2.2 KiB
C
/*
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Unix SMB/CIFS implementation.
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POSIX NTVFS backend - write
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Copyright (C) Andrew Tridgell 2004
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "includes.h"
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#include "vfs_posix.h"
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#include "librpc/gen_ndr/ndr_security.h"
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/*
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write to a file
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*/
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NTSTATUS pvfs_write(struct ntvfs_module_context *ntvfs,
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struct smbsrv_request *req, union smb_write *wr)
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{
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struct pvfs_state *pvfs = ntvfs->private_data;
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ssize_t ret;
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struct pvfs_file *f;
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NTSTATUS status;
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if (wr->generic.level != RAW_WRITE_WRITEX) {
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return ntvfs_map_write(req, wr, ntvfs);
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}
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f = pvfs_find_fd(pvfs, req, wr->writex.in.fnum);
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if (!f) {
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return NT_STATUS_INVALID_HANDLE;
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}
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if (f->handle->fd == -1) {
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return NT_STATUS_FILE_IS_A_DIRECTORY;
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}
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if (!(f->access_mask & (SEC_FILE_WRITE_DATA | SEC_FILE_APPEND_DATA))) {
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return NT_STATUS_ACCESS_VIOLATION;
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}
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status = pvfs_check_lock(pvfs, f, req->smbpid,
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wr->writex.in.offset,
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wr->writex.in.count,
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WRITE_LOCK);
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if (!NT_STATUS_IS_OK(status)) {
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return status;
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}
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if (f->handle->name->stream_name) {
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ret = pvfs_stream_write(pvfs,
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f->handle,
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wr->writex.in.data,
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wr->writex.in.count,
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wr->writex.in.offset);
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} else {
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ret = pwrite(f->handle->fd,
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wr->writex.in.data,
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wr->writex.in.count,
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wr->writex.in.offset);
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}
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if (ret == -1) {
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if (errno == EFBIG) {
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return NT_STATUS_INVALID_PARAMETER;
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}
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return pvfs_map_errno(pvfs, errno);
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}
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f->handle->seek_offset = wr->writex.in.offset + ret;
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wr->writex.out.nwritten = ret;
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wr->writex.out.remaining = 0; /* should fill this in? */
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return NT_STATUS_OK;
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}
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