Last change
on this file since 3439 was 3320, checked in by Bruno Cornec, 10 years ago |
- Re-add (thanks git BTW) the 2.2.9 branch which had been destroyed in
the move to 3.0
|
-
Property svn:eol-style
set to
native
|
File size:
1.0 KB
|
Rev | Line | |
---|
[3320] | 1 | /* vi: set sw=4 ts=4: */
|
---|
| 2 | /*
|
---|
| 3 | * getsectsize.c --- get the sector size of a device.
|
---|
| 4 | *
|
---|
| 5 | * Copyright (C) 1995, 1995 Theodore Ts'o.
|
---|
| 6 | * Copyright (C) 2003 VMware, Inc.
|
---|
| 7 | *
|
---|
| 8 | * %Begin-Header%
|
---|
| 9 | * This file may be redistributed under the terms of the GNU Public
|
---|
| 10 | * License.
|
---|
| 11 | * %End-Header%
|
---|
| 12 | */
|
---|
| 13 |
|
---|
| 14 | #include <stdio.h>
|
---|
| 15 | #if HAVE_UNISTD_H
|
---|
| 16 | #include <unistd.h>
|
---|
| 17 | #endif
|
---|
| 18 | #if HAVE_ERRNO_H
|
---|
| 19 | #include <errno.h>
|
---|
| 20 | #endif
|
---|
| 21 | #include <fcntl.h>
|
---|
| 22 | #ifdef HAVE_LINUX_FD_H
|
---|
| 23 | #include <sys/ioctl.h>
|
---|
| 24 | #include <linux/fd.h>
|
---|
| 25 | #endif
|
---|
| 26 |
|
---|
| 27 | #if defined(__linux__) && defined(_IO) && !defined(BLKSSZGET)
|
---|
| 28 | #define BLKSSZGET _IO(0x12,104)/* get block device sector size */
|
---|
| 29 | #endif
|
---|
| 30 |
|
---|
| 31 | #include "ext2_fs.h"
|
---|
| 32 | #include "ext2fs.h"
|
---|
| 33 |
|
---|
| 34 | /*
|
---|
| 35 | * Returns the number of blocks in a partition
|
---|
| 36 | */
|
---|
| 37 | errcode_t ext2fs_get_device_sectsize(const char *file, int *sectsize)
|
---|
| 38 | {
|
---|
| 39 | int fd;
|
---|
| 40 |
|
---|
| 41 | #ifdef CONFIG_LFS
|
---|
| 42 | fd = open64(file, O_RDONLY);
|
---|
| 43 | #else
|
---|
| 44 | fd = open(file, O_RDONLY);
|
---|
| 45 | #endif
|
---|
| 46 | if (fd < 0)
|
---|
| 47 | return errno;
|
---|
| 48 |
|
---|
| 49 | #ifdef BLKSSZGET
|
---|
| 50 | if (ioctl(fd, BLKSSZGET, sectsize) >= 0) {
|
---|
| 51 | close(fd);
|
---|
| 52 | return 0;
|
---|
| 53 | }
|
---|
| 54 | #endif
|
---|
| 55 | *sectsize = 0;
|
---|
| 56 | close(fd);
|
---|
| 57 | return 0;
|
---|
| 58 | }
|
---|
Note:
See
TracBrowser
for help on using the repository browser.