diff options
Diffstat (limited to 'util-linux/e2p/fgetflags.c')
-rw-r--r-- | util-linux/e2p/fgetflags.c | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/util-linux/e2p/fgetflags.c b/util-linux/e2p/fgetflags.c new file mode 100644 index 000000000..6db729e08 --- /dev/null +++ b/util-linux/e2p/fgetflags.c | |||
@@ -0,0 +1,92 @@ | |||
1 | /* | ||
2 | * fgetflags.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 | * This file can be redistributed under the terms of the GNU Library General | ||
9 | * Public License | ||
10 | */ | ||
11 | |||
12 | /* | ||
13 | * History: | ||
14 | * 93/10/30 - Creation | ||
15 | */ | ||
16 | |||
17 | #if HAVE_ERRNO_H | ||
18 | #include <errno.h> | ||
19 | #endif | ||
20 | #if HAVE_UNISTD_H | ||
21 | #include <unistd.h> | ||
22 | #endif | ||
23 | #include <sys/types.h> | ||
24 | #include <sys/stat.h> | ||
25 | #if HAVE_EXT2_IOCTLS | ||
26 | #include <fcntl.h> | ||
27 | #include <sys/ioctl.h> | ||
28 | #endif | ||
29 | |||
30 | #include "e2p.h" | ||
31 | |||
32 | #ifdef O_LARGEFILE | ||
33 | #define OPEN_FLAGS (O_RDONLY|O_NONBLOCK|O_LARGEFILE) | ||
34 | #else | ||
35 | #define OPEN_FLAGS (O_RDONLY|O_NONBLOCK) | ||
36 | #endif | ||
37 | |||
38 | int fgetflags (const char * name, unsigned long * flags) | ||
39 | { | ||
40 | struct stat buf; | ||
41 | #if HAVE_STAT_FLAGS && !(APPLE_DARWIN && HAVE_EXT2_IOCTLS) | ||
42 | |||
43 | if (stat (name, &buf) == -1) | ||
44 | return -1; | ||
45 | |||
46 | *flags = 0; | ||
47 | #ifdef UF_IMMUTABLE | ||
48 | if (buf.st_flags & UF_IMMUTABLE) | ||
49 | *flags |= EXT2_IMMUTABLE_FL; | ||
50 | #endif | ||
51 | #ifdef UF_APPEND | ||
52 | if (buf.st_flags & UF_APPEND) | ||
53 | *flags |= EXT2_APPEND_FL; | ||
54 | #endif | ||
55 | #ifdef UF_NODUMP | ||
56 | if (buf.st_flags & UF_NODUMP) | ||
57 | *flags |= EXT2_NODUMP_FL; | ||
58 | #endif | ||
59 | |||
60 | return 0; | ||
61 | #else | ||
62 | #if HAVE_EXT2_IOCTLS | ||
63 | int fd, r, f, save_errno = 0; | ||
64 | |||
65 | if (!stat(name, &buf) && | ||
66 | !S_ISREG(buf.st_mode) && !S_ISDIR(buf.st_mode)) { | ||
67 | goto notsupp; | ||
68 | } | ||
69 | #if !APPLE_DARWIN | ||
70 | fd = open (name, OPEN_FLAGS); | ||
71 | if (fd == -1) | ||
72 | return -1; | ||
73 | r = ioctl (fd, EXT2_IOC_GETFLAGS, &f); | ||
74 | if (r == -1) | ||
75 | save_errno = errno; | ||
76 | *flags = f; | ||
77 | close (fd); | ||
78 | if (save_errno) | ||
79 | errno = save_errno; | ||
80 | return r; | ||
81 | #else | ||
82 | f = -1; | ||
83 | save_errno = syscall(SYS_fsctl, name, EXT2_IOC_GETFLAGS, &f, 0); | ||
84 | *flags = f; | ||
85 | return (save_errno); | ||
86 | #endif | ||
87 | #endif /* HAVE_EXT2_IOCTLS */ | ||
88 | #endif | ||
89 | notsupp: | ||
90 | errno = EOPNOTSUPP; | ||
91 | return -1; | ||
92 | } | ||