diff options
Diffstat (limited to 'e2fsprogs/e2p/fgetsetflags.c')
-rw-r--r-- | e2fsprogs/e2p/fgetsetflags.c | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/e2fsprogs/e2p/fgetsetflags.c b/e2fsprogs/e2p/fgetsetflags.c new file mode 100644 index 000000000..0a9f5359a --- /dev/null +++ b/e2fsprogs/e2p/fgetsetflags.c | |||
@@ -0,0 +1,69 @@ | |||
1 | /* | ||
2 | * fgetflags.c - Get a file flags on an ext2 file system | ||
3 | * fsetflags.c - Set a file flags on an ext2 file system | ||
4 | * | ||
5 | * Copyright (C) 1993, 1994 Remy Card <card@masi.ibp.fr> | ||
6 | * Laboratoire MASI, Institut Blaise Pascal | ||
7 | * Universite Pierre et Marie Curie (Paris VI) | ||
8 | * | ||
9 | * This file can be redistributed under the terms of the GNU Library General | ||
10 | * Public License | ||
11 | */ | ||
12 | |||
13 | /* | ||
14 | * History: | ||
15 | * 93/10/30 - Creation | ||
16 | */ | ||
17 | |||
18 | #if HAVE_ERRNO_H | ||
19 | #include <errno.h> | ||
20 | #endif | ||
21 | #if HAVE_UNISTD_H | ||
22 | #include <unistd.h> | ||
23 | #endif | ||
24 | #include <sys/types.h> | ||
25 | #include <sys/stat.h> | ||
26 | #if HAVE_EXT2_IOCTLS | ||
27 | #include <fcntl.h> | ||
28 | #include <sys/ioctl.h> | ||
29 | #endif | ||
30 | |||
31 | #include "e2p.h" | ||
32 | |||
33 | #ifdef O_LARGEFILE | ||
34 | #define OPEN_FLAGS (O_RDONLY|O_NONBLOCK|O_LARGEFILE) | ||
35 | #else | ||
36 | #define OPEN_FLAGS (O_RDONLY|O_NONBLOCK) | ||
37 | #endif | ||
38 | |||
39 | int fgetsetflags (const char * name, unsigned long * get_flags, unsigned long set_flags) | ||
40 | { | ||
41 | #if HAVE_EXT2_IOCTLS | ||
42 | struct stat buf; | ||
43 | int fd, r, f, save_errno = 0; | ||
44 | |||
45 | if (!stat(name, &buf) && | ||
46 | !S_ISREG(buf.st_mode) && !S_ISDIR(buf.st_mode)) { | ||
47 | goto notsupp; | ||
48 | } | ||
49 | fd = open (name, OPEN_FLAGS); | ||
50 | if (fd == -1) | ||
51 | return -1; | ||
52 | if (!get_flags) { | ||
53 | f = (int) set_flags; | ||
54 | r = ioctl (fd, EXT2_IOC_SETFLAGS, &f); | ||
55 | } else { | ||
56 | r = ioctl (fd, EXT2_IOC_GETFLAGS, &f); | ||
57 | *get_flags = f; | ||
58 | } | ||
59 | if (r == -1) | ||
60 | save_errno = errno; | ||
61 | close (fd); | ||
62 | if (save_errno) | ||
63 | errno = save_errno; | ||
64 | return r; | ||
65 | #endif /* HAVE_EXT2_IOCTLS */ | ||
66 | notsupp: | ||
67 | errno = EOPNOTSUPP; | ||
68 | return -1; | ||
69 | } | ||