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
|
/* libdiskfs implementetation of fs.defs: file_chown
Copyright (C) 1994 Free Software Foundation
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, 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 "priv.h"
/* Implement file_chown as described in <hurd/fs.defs>. */
error_t
S_file_chown (struct protid *cred,
uid_t uid,
gid_t gid)
{
CHANGE_NODE_FIELD (cred,
({
if (!isowner (np, cred)
|| ((!isuid (uid, cred)
|| !groupmember (gid, cred))
&& !isuid (0, cred)))
err = EPERM;
else
{
np->dn_stat.st_uid = uid;
np->dn_stat.st_gid = gid;
np->dn_set_ctime = 1;
}
}));
}
|
