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 #include "config.h"
20 #if HAVE_ERRNO_H
21 #include <errno.h>
22 #endif
23 #include <sys/types.h>
24 #include <sys/stat.h>
25 #if HAVE_EXT2_IOCTLS
26 #include <sys/ioctl.h>
27 #endif
28
29 #include "e2p.h"
30
getflags(int fd,unsigned long * flags)31 int getflags (int fd, unsigned long * flags)
32 {
33 struct stat buf;
34 #if HAVE_STAT_FLAGS
35
36 if (fstat (fd, &buf) == -1)
37 return -1;
38
39 *flags = 0;
40 #ifdef UF_IMMUTABLE
41 if (buf.st_flags & UF_IMMUTABLE)
42 *flags |= EXT2_IMMUTABLE_FL;
43 #endif
44 #ifdef UF_APPEND
45 if (buf.st_flags & UF_APPEND)
46 *flags |= EXT2_APPEND_FL;
47 #endif
48 #ifdef UF_NODUMP
49 if (buf.st_flags & UF_NODUMP)
50 *flags |= EXT2_NODUMP_FL;
51 #endif
52
53 return 0;
54 #else
55 #if HAVE_EXT2_IOCTLS
56 int r, f;
57
58 if (!fstat(fd, &buf) &&
59 !S_ISREG(buf.st_mode) && !S_ISDIR(buf.st_mode))
60 goto notsupp;
61 r = ioctl(fd, EXT2_IOC_GETFLAGS, &f);
62 *flags = f;
63
64 return r;
65 notsupp:
66 #endif /* HAVE_EXT2_IOCTLS */
67 #endif
68 errno = EOPNOTSUPP;
69 return -1;
70 }
71