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The long waited device-level write support on 

windows.  (Yuval)

(Logical change 1.491)
edge.strict_endians
cantab.net!aia21 2004-08-12 08:21:50 +00:00
parent 96354474b0
commit aa85d7a8b1
1 changed files with 35 additions and 5 deletions
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40
libntfs/win32_io.c
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@ -826,14 +826,44 @@ static int ntfs_device_win32_sync(struct ntfs_device *dev)
* @count: How many bytes should be written.
*
* On success returns the amount of bytes actually written.
* On fail returns -errno.
* On fail returns -1 and errno set.
*/
static s64 ntfs_device_win32_write(struct ntfs_device *dev, const void *buffer,
static s64 ntfs_device_win32_write(struct ntfs_device *dev, const void *buf,
s64 count)
{
fprintf(stderr, "win32_write() unimplemented\n");
errno = ENOTSUP;
return -1;
s64 bytes_written = 0;
HANDLE handle = ((win32_fd *)dev->d_private)->handle;
Dprintf("win32_write: Writing %ll bytes\n",count);
if (NDevReadOnly(dev)) {
Dputs("win32_write: Device R/O, exiting.");
errno = EROFS;
return -1;
}
NDevSetDirty(dev);
while (count>0) {
DWORD cur_written;
DWORD cur_count = (count>32768)?32768:count;
if (WriteFile(handle, buf, cur_count, &cur_written, NULL) &&
(cur_written==cur_count)) {
Dprintf("win32_write: Written %u bytes.",bytes_written);
bytes_written += cur_written;
count -= cur_written;
} else {
/* error */
errno = ntfs_w32error_to_errno(GetLastError());
return -1;
}
}
if (count) {
errno = EIO;
return -1;
} else {
return bytes_written;
}
}
/**