1 /*
2 * Copyright (C) 2013 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include <sys/ioctl.h>
18 #include <linux/fs.h>
19
get_blkdev_size(int fd)20 unsigned int get_blkdev_size(int fd)
21 {
22 unsigned int nr_sec;
23
24 if ( (ioctl(fd, BLKGETSIZE, &nr_sec)) == -1) {
25 nr_sec = 0;
26 }
27
28 return nr_sec;
29 }
30