blob: 2cd3410876a676e4bb96fa3d3ae09b17594f9dad (
plain)
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
63
64
65
|
/*
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 3 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, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
#include "vfs_posix.h"
/*
seek in a file
*/
NTSTATUS pvfs_seek(struct ntvfs_module_context *ntvfs,
struct ntvfs_request *req,
union smb_seek *io)
{
struct pvfs_state *pvfs = talloc_get_type(ntvfs->private_data,
struct pvfs_state);
struct pvfs_file *f;
struct pvfs_file_handle *h;
NTSTATUS status;
f = pvfs_find_fd(pvfs, req, io->lseek.in.file.ntvfs);
if (!f) {
return NT_STATUS_INVALID_HANDLE;
}
h = f->handle;
status = NT_STATUS_OK;
switch (io->lseek.in.mode) {
case SEEK_MODE_START:
h->seek_offset = io->lseek.in.offset;
break;
case SEEK_MODE_CURRENT:
h->seek_offset += io->lseek.in.offset;
break;
case SEEK_MODE_END:
status = pvfs_resolve_name_fd(pvfs, h->fd, h->name, PVFS_RESOLVE_NO_OPENDB);
h->seek_offset = h->name->st.st_size + io->lseek.in.offset;
break;
}
io->lseek.out.offset = h->seek_offset;
return status;
}
|
