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 * %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#define _LARGEFILE_SOURCE
20#define _LARGEFILE64_SOURCE
21
22#if HAVE_ERRNO_H
23#include <errno.h>
24#endif
25#if HAVE_UNISTD_H
26#include <unistd.h>
27#endif
28#include <sys/types.h>
29#include <sys/stat.h>
30#if HAVE_EXT2_IOCTLS
31#include <fcntl.h>
32#include <sys/ioctl.h>
33#endif
34
35#include "e2p.h"
36
37#ifdef O_LARGEFILE
38#define OPEN_FLAGS (O_RDONLY|O_NONBLOCK|O_LARGEFILE)
39#else
40#define OPEN_FLAGS (O_RDONLY|O_NONBLOCK)
41#endif
42
43int fgetflags (const char * name, unsigned long * flags)
44{
45	struct stat buf;
46#if HAVE_STAT_FLAGS && !(APPLE_DARWIN && HAVE_EXT2_IOCTLS)
47
48	if (stat (name, &buf) == -1)
49		return -1;
50
51	*flags = 0;
52#ifdef UF_IMMUTABLE
53	if (buf.st_flags & UF_IMMUTABLE)
54		*flags |= EXT2_IMMUTABLE_FL;
55#endif
56#ifdef UF_APPEND
57	if (buf.st_flags & UF_APPEND)
58		*flags |= EXT2_APPEND_FL;
59#endif
60#ifdef UF_NODUMP
61	if (buf.st_flags & UF_NODUMP)
62		*flags |= EXT2_NODUMP_FL;
63#endif
64
65	return 0;
66#else /* !HAVE_STAT_FLAGS || (APPLE_DARWIN && HAVE_EXT2_IOCTLS) */
67#if HAVE_EXT2_IOCTLS
68	int fd, r, f, save_errno = 0;
69
70	if (!lstat(name, &buf) &&
71	    !S_ISREG(buf.st_mode) && !S_ISDIR(buf.st_mode)) {
72		goto notsupp;
73	}
74#if !APPLE_DARWIN
75	fd = open (name, OPEN_FLAGS);
76	if (fd == -1)
77		return -1;
78	r = ioctl (fd, EXT2_IOC_GETFLAGS, &f);
79	if (r == -1)
80		save_errno = errno;
81	*flags = f;
82	close (fd);
83	if (save_errno)
84		errno = save_errno;
85	return r;
86#else /* APPLE_DARWIN */
87   f = -1;
88   save_errno = syscall(SYS_fsctl, name, EXT2_IOC_GETFLAGS, &f, 0);
89   *flags = f;
90   return (save_errno);
91#endif /* !APPLE_DARWIN */
92notsupp:
93#endif /* HAVE_EXT2_IOCTLS */
94#endif
95	errno = EOPNOTSUPP;
96	return -1;
97}
98