1 /*
2 * getflags.c - Get a file flags on an ext2 file system
3 *
4 * Copyright (C) 1993, 1994 Remy Card <card@masi.ibp.fr>
5 * Laboratoire MASI, Institut Blaise Pascal
6 * Universite Pierre et Marie Curie (Paris VI)
7 *
8 * %Begin-Header%
9 * This file may be redistributed under the terms of the GNU Library
10 * General Public License, version 2.
11 * %End-Header%
12 */
13
14 /*
15 * History:
16 * 93/10/30 - Creation
17 */
18
19 #if HAVE_ERRNO_H
20 #include <errno.h>
21 #endif
22 #include <sys/types.h>
23 #include <sys/stat.h>
24 #if HAVE_EXT2_IOCTLS
25 #include <sys/ioctl.h>
26 #endif
27
28 #include "e2p.h"
29
getflags(int fd,unsigned long * flags)30 int getflags (int fd, unsigned long * flags)
31 {
32 struct stat buf;
33 #if HAVE_STAT_FLAGS
34
35 if (fstat (fd, &buf) == -1)
36 return -1;
37
38 *flags = 0;
39 #ifdef UF_IMMUTABLE
40 if (buf.st_flags & UF_IMMUTABLE)
41 *flags |= EXT2_IMMUTABLE_FL;
42 #endif
43 #ifdef UF_APPEND
44 if (buf.st_flags & UF_APPEND)
45 *flags |= EXT2_APPEND_FL;
46 #endif
47 #ifdef UF_NODUMP
48 if (buf.st_flags & UF_NODUMP)
49 *flags |= EXT2_NODUMP_FL;
50 #endif
51
52 return 0;
53 #else
54 #if HAVE_EXT2_IOCTLS
55 int r, f;
56
57 if (!fstat(fd, &buf) &&
58 !S_ISREG(buf.st_mode) && !S_ISDIR(buf.st_mode))
59 goto notsupp;
60 r = ioctl(fd, EXT2_IOC_GETFLAGS, &f);
61 *flags = f;
62
63 return r;
64 notsupp:
65 #endif /* HAVE_EXT2_IOCTLS */
66 #endif
67 errno = EOPNOTSUPP;
68 return -1;
69 }
70