1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
|
/*
Unix SMB/CIFS implementation.
POSIX NTVFS backend - seek
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 "includes.h"
#include "vfs_posix.h"
/*
seek in a file
*/
NTSTATUS pvfs_seek(struct ntvfs_module_context *ntvfs,
struct smbsrv_request *req, struct smb_seek *io)
{
struct pvfs_state *pvfs = ntvfs->private_data;
struct pvfs_file *f;
NTSTATUS status;
f = pvfs_find_fd(pvfs, req, io->in.fnum);
if (!f) {
return NT_STATUS_INVALID_HANDLE;
}
status = NT_STATUS_OK;
switch (io->in.mode) {
case SEEK_MODE_START:
f->seek_offset = io->in.offset;
break;
case SEEK_MODE_CURRENT:
f->seek_offset += io->in.offset;
break;
case SEEK_MODE_END:
status = pvfs_resolve_name_fd(pvfs, f->fd, f->name);
f->seek_offset = f->name->st.st_size + io->in.offset;
break;
}
io->out.offset = f->seek_offset;
return status;
}
|
