diff options
Diffstat (limited to 'lib/ext2fs/getsize.c')
| -rw-r--r-- | lib/ext2fs/getsize.c | 31 |
1 files changed, 11 insertions, 20 deletions
diff --git a/lib/ext2fs/getsize.c b/lib/ext2fs/getsize.c index bcf3020..a028634 100644 --- a/lib/ext2fs/getsize.c +++ b/lib/ext2fs/getsize.c @@ -71,12 +71,11 @@ #define HAVE_GET_FILE_SIZE_EX 1 #endif -HANDLE windows_get_handle(io_channel channel); - errcode_t ext2fs_get_device_size2(const char *file, int blocksize, blk64_t *retblocks) { - HANDLE dev; + int fd; + HANDLE h; PARTITION_INFORMATION pi; DISK_GEOMETRY gi; DWORD retbytes; @@ -86,25 +85,18 @@ errcode_t ext2fs_get_device_size2(const char *file, int blocksize, DWORD filesize; #endif /* HAVE_GET_FILE_SIZE_EX */ - io_channel data_io = 0; - int retval; - - retval = windows_io_manager->open(file, 0, &data_io); - if (retval) - return retval; - - dev = windows_get_handle(data_io); - if (dev == INVALID_HANDLE_VALUE) - return EBADF; - - if (DeviceIoControl(dev, IOCTL_DISK_GET_PARTITION_INFO, + fd = ext2fs_open_file(file, O_RDONLY, 0); + if (fd < 0) + return errno; + h = (HANDLE)_get_osfhandle(fd); + if (DeviceIoControl(h, IOCTL_DISK_GET_PARTITION_INFO, &pi, sizeof(PARTITION_INFORMATION), &pi, sizeof(PARTITION_INFORMATION), &retbytes, NULL)) { *retblocks = pi.PartitionLength.QuadPart / blocksize; - } else if (DeviceIoControl(dev, IOCTL_DISK_GET_DRIVE_GEOMETRY, + } else if (DeviceIoControl(h, IOCTL_DISK_GET_DRIVE_GEOMETRY, &gi, sizeof(DISK_GEOMETRY), &gi, sizeof(DISK_GEOMETRY), &retbytes, NULL)) { @@ -115,20 +107,19 @@ errcode_t ext2fs_get_device_size2(const char *file, int blocksize, gi.Cylinders.QuadPart / blocksize; #ifdef HAVE_GET_FILE_SIZE_EX - } else if (GetFileSizeEx(dev, &filesize)) { + } else if (GetFileSizeEx(h, &filesize)) { *retblocks = filesize.QuadPart / blocksize; } #else } else { - filesize = GetFileSize(dev, NULL); + filesize = GetFileSize(h, NULL); if (INVALID_FILE_SIZE != filesize) { *retblocks = filesize / blocksize; } } #endif /* HAVE_GET_FILE_SIZE_EX */ - windows_io_manager->close(data_io); - + close(fd); return 0; } |