root/trunk/lib/ioctl-setext2flags.hc

Revision 702, 1.5 kB (checked in by ensc, 5 years ago)

use ENSC_FIX_IOCTL() to fix dietlibc's ioctl() return values

  • Property svn:eol-style set to native
  • Property svn:keywords set to Author Date Id Revision
Line 
1 // $Id$    --*- c -*--
2
3 // Copyright (C) 2004 Enrico Scholz <enrico.scholz@informatik.tu-chemnitz.de>
4 // 
5 // This program is free software; you can redistribute it and/or modify
6 // it under the terms of the GNU General Public License as published by
7 // the Free Software Foundation; version 2 of the License.
8 // 
9 // This program is distributed in the hope that it will be useful,
10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12 // GNU General Public License for more details.
13 // 
14 // You should have received a copy of the GNU General Public License
15 // along with this program; if not, write to the Free Software
16 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
17
18
19 #ifdef HAVE_CONFIG_H
20 include <config.h>
21 #endif
22
23 #include "vserver.h"
24 #include "ext2fs.h"
25
26 #include <sys/ioctl.h>
27
28 #ifndef EXT2_IMMUTABLE_FILE_FL
29 define EXT2_IMMUTABLE_FILE_FL        0x00000010
30 #endif
31
32 #ifndef EXT2_IMMUTABLE_LINK_FL
33 define EXT2_IMMUTABLE_LINK_FL        0x00008000
34 #endif
35
36 static inline ALWAYSINLINE int
37 vc_X_set_ext2flags(int fd, long set_flags, long del_flags)
38 {
39   long          old_flags = 0;
40   int           rc;
41
42   set_flags = EXT2FLAGS_USER2KERNEL(set_flags);
43   del_flags = EXT2FLAGS_USER2KERNEL(del_flags);
44  
45   if (del_flags!=-1) {
46     if (ioctl(fd, EXT2_IOC_GETFLAGS, &old_flags)==-1) return -1;
47     old_flags &= ~del_flags;
48   }
49
50   old_flags |= set_flags;
51   rc = ioctl(fd, EXT2_IOC_SETFLAGS, &old_flags);
52
53   ENSC_FIX_IOCTL(rc);
54
55   return rc;
56 }
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