2006-04-27 19:11:45 +04:00
|
|
|
/////////////////////////////////////////////////////////////////////////
|
|
|
|
|
// $Id: cdrom_beos.cc,v 1.2 2006-04-27 15:11:45 sshwarts Exp $
|
|
|
|
|
/////////////////////////////////////////////////////////////////////////
|
|
|
|
|
|
2001-12-07 21:58:24 +03:00
|
|
|
#include <SupportDefs.h>
|
|
|
|
|
#include <Drivers.h>
|
|
|
|
|
|
|
|
|
|
#include <sys/stat.h>
|
|
|
|
|
#include <unistd.h>
|
|
|
|
|
|
|
|
|
|
#include "cdrom_beos.h"
|
|
|
|
|
|
|
|
|
|
int
|
|
|
|
|
GetLogicalBlockSize(int fd)
|
|
|
|
|
{
|
|
|
|
|
partition_info p_info;
|
|
|
|
|
|
|
|
|
|
if (ioctl(fd, B_GET_PARTITION_INFO, &p_info) == B_NO_ERROR)
|
|
|
|
|
{
|
|
|
|
|
//dprintf("GetLogicalBlockSize: ioctl suceed\n");
|
|
|
|
|
return p_info.logical_block_size;
|
|
|
|
|
}
|
|
|
|
|
else //dprintf("GetLogicalBlockSize = ioctl returned error\n");
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
int
|
|
|
|
|
GetDeviceBlockSize(int fd)
|
|
|
|
|
{
|
|
|
|
|
struct stat st;
|
|
|
|
|
device_geometry dg;
|
|
|
|
|
|
|
|
|
|
if (ioctl(fd, B_GET_GEOMETRY, &dg) < 0)
|
|
|
|
|
{
|
|
|
|
|
if (fstat(fd, &st) < 0 || S_ISDIR(st.st_mode))
|
|
|
|
|
return 0;
|
|
|
|
|
return 512; /* just assume it's a plain old file or something */
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return dg.bytes_per_sector;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
off_t
|
|
|
|
|
GetNumDeviceBlocks(int fd, int block_size)
|
|
|
|
|
{
|
|
|
|
|
struct stat st;
|
|
|
|
|
device_geometry dg;
|
|
|
|
|
|
|
|
|
|
if (ioctl(fd, B_GET_GEOMETRY, &dg) >= 0)
|
|
|
|
|
{
|
|
|
|
|
return (off_t)dg.cylinder_count *
|
|
|
|
|
(off_t)dg.sectors_per_track *
|
|
|
|
|
(off_t)dg.head_count;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* if the ioctl fails, try just stat'ing in case it's a regular file */
|
|
|
|
|
if (fstat(fd, &st) < 0)
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
|
|
return st.st_size / block_size;
|
|
|
|
|
}
|
