2 * getsectsize.c --- get the sector size of a device.
4 * Copyright (C) 1995, 1995 Theodore Ts'o.
5 * Copyright (C) 2003 VMware, Inc.
8 * This file may be redistributed under the terms of the GNU Public
21 #ifdef HAVE_LINUX_FD_H
22 #include <sys/ioctl.h>
26 #if defined(__linux__) && defined(_IO) && !defined(BLKGETSIZE)
27 #define BLKSSZGET _IO(0x12,104)/* get block device sector size */
34 * Returns the number of blocks in a partition
36 errcode_t ext2fs_get_device_sectsize(const char *file, int *sectsize)
41 fd = open64(file, O_RDONLY);
43 fd = open(file, O_RDONLY);
49 if (ioctl(fd, BLKSSZGET, sectsize) >= 0) {