root/trunk/lib/ioctl-getxflg.hc

Revision 685, 1.1 kB (checked in by ensc, 5 years ago)

when ioctl() returns a value <-1, assign errno manually and return -1

  • 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 #define FIOC_GETXFLG    _IOR('x', 5, long)
29
30 static inline ALWAYSINLINE int
31 vc_X_get_xflg(int fd, long *flags)
32 {
33   int           rc;
34   *flags = 0;
35   rc = ioctl(fd, FIOC_GETXFLG, flags);
36
37   if (rc<-1) {
38     errno = -rc;
39     rc    = -1;
40   }
41  
42   return rc;
43 }
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