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,unsigned long * nr_sec)20 void get_blkdev_size(int fd, unsigned long* nr_sec) {
21 if ((ioctl(fd, BLKGETSIZE, nr_sec)) == -1) {
22 *nr_sec = 0;
23 }
24 }
25