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#define _LARGEFILE_SOURCE
18#define _LARGEFILE64_SOURCE
19
20#if HAVE_ERRNO_H
21#include <errno.h>
22#endif
23#if HAVE_UNISTD_H
24#include <unistd.h>
25#endif
26#include <sys/types.h>
27#include <sys/stat.h>
28#if HAVE_EXT2_IOCTLS
29#include <fcntl.h>
30#include <sys/ioctl.h>
31#endif
32
33#include "e2p.h"
34
35#ifdef O_LARGEFILE
36#define OPEN_FLAGS (O_RDONLY|O_NONBLOCK|O_LARGEFILE)
37#else
38#define OPEN_FLAGS (O_RDONLY|O_NONBLOCK)
39#endif
40
41int fgetflags (const char * name, unsigned long * flags)
42{
43	struct stat buf;
44#if HAVE_STAT_FLAGS && !(APPLE_DARWIN && HAVE_EXT2_IOCTLS)
45
46	if (stat (name, &buf) == -1)
47		return -1;
48
49	*flags = 0;
50#ifdef UF_IMMUTABLE
51	if (buf.st_flags & UF_IMMUTABLE)
52		*flags |= EXT2_IMMUTABLE_FL;
53#endif
54#ifdef UF_APPEND
55	if (buf.st_flags & UF_APPEND)
56		*flags |= EXT2_APPEND_FL;
57#endif
58#ifdef UF_NODUMP
59	if (buf.st_flags & UF_NODUMP)
60		*flags |= EXT2_NODUMP_FL;
61#endif
62
63	return 0;
64#else
65#if HAVE_EXT2_IOCTLS
66	int fd, r, f, save_errno = 0;
67
68	if (!stat(name, &buf) &&
69	    !S_ISREG(buf.st_mode) && !S_ISDIR(buf.st_mode)) {
70		goto notsupp;
71	}
72#if !APPLE_DARWIN
73	fd = open (name, OPEN_FLAGS);
74	if (fd == -1)
75		return -1;
76	r = ioctl (fd, EXT2_IOC_GETFLAGS, &f);
77	if (r == -1)
78		save_errno = errno;
79	*flags = f;
80	close (fd);
81	if (save_errno)
82		errno = save_errno;
83	return r;
84#else
85   f = -1;
86   save_errno = syscall(SYS_fsctl, name, EXT2_IOC_GETFLAGS, &f, 0);
87   *flags = f;
88   return (save_errno);
89#endif
90#endif /* HAVE_EXT2_IOCTLS */
91#endif
92notsupp:
93	errno = EOPNOTSUPP;
94	return -1;
95}
96