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