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Partition handling update from Lode Leroy. 

(Logical change 1.266)
edge.strict_endians
cantab.net!aia21 2004-01-19 15:58:00 +00:00
parent 0f80e6b1d7
commit 4b57fb71ea
1 changed files with 26 additions and 14 deletions
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40
libntfs/win32_io.c
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@ -3,8 +3,8 @@
* on Win32. Can access an NTFS volume while it is mounted.
* Part of the Linux-NTFS project.
*
* Copyright (c) 2003 Lode Leroy
* Copyright (c) 2003 Anton Altaparmakov
* Copyright (c) 2003-2004 Lode Leroy
* Copyright (c) 2003-2004 Anton Altaparmakov
*
* This program/include file is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as published
@ -101,7 +101,6 @@ static int ntfs_device_win32_open(struct ntfs_device *dev, int flags)
numparams = sscanf(dev->d_name, "/dev/hd%c%d", &drive_char, &part);
drive = toupper(drive_char) - 'A';
part--;
if (numparams >= 1) {
if (numparams == 2)
@ -137,6 +136,8 @@ static int ntfs_device_win32_open(struct ntfs_device *dev, int flags)
DWORD numread;
DRIVE_LAYOUT_INFORMATION *drive_layout;
BOOL rvl;
int i;
int found = 0;
rvl = DeviceIoControl(handle,
IOCTL_DISK_GET_DRIVE_LAYOUT, NULL, 0,
@ -151,23 +152,34 @@ static int ntfs_device_win32_open(struct ntfs_device *dev, int flags)
drive_layout = (DRIVE_LAYOUT_INFORMATION *)buffer;
if (part >= drive_layout->PartitionCount) {
for (i = 0; i < drive_layout->PartitionCount; i++) {
if (drive_layout->PartitionEntry[i].
PartitionNumber == part) {
fd.handle = handle;
fd.part_start = drive_layout->
PartitionEntry[i].
StartingOffset;
fd.part_end.QuadPart = drive_layout->
PartitionEntry[i].
StartingOffset.
QuadPart +
drive_layout->
PartitionEntry[i].
PartitionLength.
QuadPart;
fd.current_pos.QuadPart = 0;
found = 1;
break;
}
}
if (!found) {
int err = errno;
fprintf(stderr, "partition %d not found on "
"drive %d\n", part, drive);
errno = err;
return -1;
}
fd.handle = handle;
fd.part_start = drive_layout->
PartitionEntry[part].StartingOffset;
fd.part_end.QuadPart = drive_layout->
PartitionEntry[0].StartingOffset.
QuadPart + drive_layout->
PartitionEntry[0].PartitionLength.
QuadPart;
fd.current_pos.QuadPart = 0;
}
} else {
BY_HANDLE_FILE_INFORMATION info;