diff options
Diffstat (limited to 'winsup/cygwin/fhandler_floppy.cc')
| -rw-r--r-- | winsup/cygwin/fhandler_floppy.cc | 191 |
1 files changed, 0 insertions, 191 deletions
diff --git a/winsup/cygwin/fhandler_floppy.cc b/winsup/cygwin/fhandler_floppy.cc deleted file mode 100644 index f0380dc88..000000000 --- a/winsup/cygwin/fhandler_floppy.cc +++ /dev/null @@ -1,191 +0,0 @@ -/* fhandler_floppy.cc. See fhandler.h for a description of the - fhandler classes. - - Copyright 1999, 2000, 2001, 2002 Red Hat, Inc. - -This file is part of Cygwin. - -This software is a copyrighted work licensed under the terms of the -Cygwin license. Please consult the file "CYGWIN_LICENSE" for -details. */ - -#include "winsup.h" -#include <sys/termios.h> -#include <errno.h> -#include <unistd.h> -#include <winioctl.h> -#include "security.h" -#include "fhandler.h" -#include "cygerrno.h" - -/**********************************************************************/ -/* fhandler_dev_floppy */ - -int -fhandler_dev_floppy::is_eom (int win_error) -{ - int ret = (win_error == ERROR_INVALID_PARAMETER); - if (ret) - debug_printf ("end of medium"); - return ret; -} - -int -fhandler_dev_floppy::is_eof (int) -{ - int ret = 0; - if (ret) - debug_printf ("end of file"); - return ret; -} - -fhandler_dev_floppy::fhandler_dev_floppy (int unit) : fhandler_dev_raw (FH_FLOPPY, unit) -{ -} - -int -fhandler_dev_floppy::open (path_conv *real_path, int flags, mode_t) -{ - /* The correct size of the buffer would be 512 bytes, - * which is the atomic size, supported by WinNT. - * Unfortunately, the performance is worse than - * access to file system on same device! - * Setting buffer size to a relatively big value - * increases performance by means. - * The new ioctl call with 'rdevio.h' header file - * supports changing this value. - * - * Let's be smart: Let's take a multiplier of typical tar - * and cpio buffer sizes by default! - */ - devbufsiz = 61440L; /* 512L; */ - return fhandler_dev_raw::open (real_path, flags); -} - -int -fhandler_dev_floppy::close (void) -{ - int ret; - - ret = writebuf (); - if (ret) - { - fhandler_dev_raw::close (); - return ret; - } - return fhandler_dev_raw::close (); -} - -__off64_t -fhandler_dev_floppy::lseek (__off64_t offset, int whence) -{ - int ret; - char buf[512]; - __off64_t drive_size = 0; - __off64_t lloffset = offset; - __off64_t current_position; - __off64_t sector_aligned_offset; - __off64_t bytes_left; - DWORD low; - LONG high = 0; - - DISK_GEOMETRY di; - PARTITION_INFORMATION pi; - DWORD bytes_read; - - if (!DeviceIoControl (get_handle (), - IOCTL_DISK_GET_DRIVE_GEOMETRY, - NULL, 0, - &di, sizeof (di), - &bytes_read, NULL)) - { - __seterrno (); - return -1; - } - debug_printf ("disk geometry: (%ld cyl)*(%ld trk)*(%ld sec)*(%ld bps)", - di.Cylinders.LowPart, - di.TracksPerCylinder, - di.SectorsPerTrack, - di.BytesPerSector); - if (DeviceIoControl (get_handle (), - IOCTL_DISK_GET_PARTITION_INFO, - NULL, 0, - &pi, sizeof (pi), - &bytes_read, NULL)) - { - debug_printf ("partition info: %ld (%ld)", - pi.StartingOffset.LowPart, - pi.PartitionLength.LowPart); - drive_size = pi.PartitionLength.QuadPart; - } - else - { - drive_size = di.Cylinders.QuadPart * di.TracksPerCylinder * - di.SectorsPerTrack * di.BytesPerSector; - } - debug_printf ("drive size: %ld", drive_size); - - if (whence == SEEK_END && drive_size > 0) - { - lloffset = offset + drive_size; - whence = SEEK_SET; - } - - if (whence == SEEK_CUR) - { - low = SetFilePointer (get_handle (), 0, &high, FILE_CURRENT); - if (low == INVALID_SET_FILE_POINTER && GetLastError ()) - { - __seterrno (); - return -1; - } - current_position = low + ((__off64_t) high << 32); - if (is_writing) - current_position += devbufend - devbufstart; - else - current_position -= devbufend - devbufstart; - - lloffset += current_position; - whence = SEEK_SET; - } - - if (lloffset < 0 || - drive_size > 0 && lloffset > drive_size) - { - set_errno (EINVAL); - return -1; - } - - /* FIXME: sector can possibly be not 512 bytes long */ - sector_aligned_offset = (lloffset / 512) * 512; - bytes_left = lloffset - sector_aligned_offset; - - if (whence == SEEK_SET) - { - /* Invalidate buffer. */ - ret = writebuf (); - if (ret) - return ret; - devbufstart = devbufend = 0; - - low = sector_aligned_offset & 0xffffffff; - high = sector_aligned_offset >> 32; - if (SetFilePointer (get_handle (), low, &high, FILE_BEGIN) - == INVALID_SET_FILE_POINTER && GetLastError ()) - { - __seterrno (); - return -1; - } - return sector_aligned_offset + raw_read (buf, bytes_left); - } - - set_errno (EINVAL); - return -1; -} - -int -fhandler_dev_floppy::ioctl (unsigned int cmd, void *buf) -{ - return fhandler_dev_raw::ioctl (cmd, buf); -} - |