1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or https://opensource.org/licenses/CDDL-1.0.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*
23  * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
24  */
25 
26 #ifndef _LIBSPL_SYS_STAT_H
27 #define	_LIBSPL_SYS_STAT_H
28 
29 #include_next <sys/stat.h>
30 
31 #include <sys/mount.h> /* for BLKGETSIZE64 */
32 
33 /*
34  * Emulate Solaris' behavior of returning the block device size in fstat64().
35  */
36 static inline int
37 fstat64_blk(int fd, struct stat64 *st)
38 {
39 	if (fstat64(fd, st) == -1)
40 		return (-1);
41 
42 	/* In Linux we need to use an ioctl to get the size of a block device */
43 	if (S_ISBLK(st->st_mode)) {
44 		if (ioctl(fd, BLKGETSIZE64, &st->st_size) != 0)
45 			return (-1);
46 	}
47 
48 	return (0);
49 }
50 #endif /* _LIBSPL_SYS_STAT_H */
51