Loop.cpp revision 37dcda68d334f70e1f7f69a9817def65fe3ee717
1a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat/* 2a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat * Copyright (C) 2008 The Android Open Source Project 3a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat * 4a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat * Licensed under the Apache License, Version 2.0 (the "License"); 5a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat * you may not use this file except in compliance with the License. 6a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat * You may obtain a copy of the License at 7a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat * 8a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat * http://www.apache.org/licenses/LICENSE-2.0 9a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat * 10a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat * Unless required by applicable law or agreed to in writing, software 11a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat * distributed under the License is distributed on an "AS IS" BASIS, 12a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat * See the License for the specific language governing permissions and 14a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat * limitations under the License. 15a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat */ 16a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 17a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat#include <stdio.h> 1837dcda68d334f70e1f7f69a9817def65fe3ee717Olivier Bailly#include <stdlib.h> 19a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat#include <fcntl.h> 20a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat#include <unistd.h> 21a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat#include <errno.h> 22a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat#include <string.h> 23a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 248da6bcb006f4e4257cdd685e35e910a6334f6ceaSan Mehat#include <sys/types.h> 258da6bcb006f4e4257cdd685e35e910a6334f6ceaSan Mehat#include <sys/stat.h> 2637dcda68d334f70e1f7f69a9817def65fe3ee717Olivier Bailly#include <sys/ioctl.h> 278da6bcb006f4e4257cdd685e35e910a6334f6ceaSan Mehat 28d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat#include <linux/kdev_t.h> 29d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat 30a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat#define LOG_TAG "Vold" 31a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 32a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat#include <cutils/log.h> 33a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 34d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat#include <sysutils/SocketClient.h> 35a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat#include "Loop.h" 36a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 37d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehatint Loop::dumpState(SocketClient *c) { 38d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat int i; 39d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat int fd; 40d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat char filename[256]; 41d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat 42d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat for (i = 0; i < LOOP_MAX; i++) { 43508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root struct loop_info64 li; 44d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat int rc; 45d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat 46d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat sprintf(filename, "/dev/block/loop%d", i); 47d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat 48d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat if ((fd = open(filename, O_RDWR)) < 0) { 49d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat if (errno != ENOENT) { 5097ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Unable to open %s (%s)", filename, strerror(errno)); 51d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat } else { 52d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat continue; 53d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat } 54d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat return -1; 55d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat } 56d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat 57508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root rc = ioctl(fd, LOOP_GET_STATUS64, &li); 58d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat close(fd); 59d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat if (rc < 0 && errno == ENXIO) { 60d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat continue; 61d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat } 62d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat 63d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat if (rc < 0) { 6497ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Unable to get loop status for %s (%s)", filename, 65d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat strerror(errno)); 66d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat return -1; 67d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat } 68d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat char *tmp = NULL; 69508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root asprintf(&tmp, "%s %d %lld:%lld %llu %lld:%lld %lld 0x%x {%s} {%s}", filename, li.lo_number, 70d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat MAJOR(li.lo_device), MINOR(li.lo_device), li.lo_inode, MAJOR(li.lo_rdevice), 71508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root MINOR(li.lo_rdevice), li.lo_offset, li.lo_flags, li.lo_crypt_name, 72508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root li.lo_file_name); 73d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat c->sendMsg(0, tmp, false); 74d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat free(tmp); 75d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat } 76d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat return 0; 77d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat} 78d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat 79d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehatint Loop::lookupActive(const char *id, char *buffer, size_t len) { 80a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat int i; 81a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat int fd; 82a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat char filename[256]; 83a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 84a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat memset(buffer, 0, len); 85a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 86a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat for (i = 0; i < LOOP_MAX; i++) { 87508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root struct loop_info64 li; 88a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat int rc; 89a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 90a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat sprintf(filename, "/dev/block/loop%d", i); 91a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 92a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if ((fd = open(filename, O_RDWR)) < 0) { 93b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat if (errno != ENOENT) { 9497ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Unable to open %s (%s)", filename, strerror(errno)); 95d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat } else { 96d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat continue; 97b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat } 98a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return -1; 99a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 100a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 101508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root rc = ioctl(fd, LOOP_GET_STATUS64, &li); 102a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat close(fd); 103a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (rc < 0 && errno == ENXIO) { 104a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat continue; 105a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 106a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 107a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (rc < 0) { 10897ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Unable to get loop status for %s (%s)", filename, 109a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat strerror(errno)); 110a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return -1; 111a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 112508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root if (!strncmp((const char*) li.lo_crypt_name, id, LO_NAME_SIZE)) { 113a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat break; 114a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 115a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 116a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 117a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (i == LOOP_MAX) { 118a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat errno = ENOENT; 119a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return -1; 120a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 121a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat strncpy(buffer, filename, len -1); 122a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return 0; 123a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat} 124a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 125d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehatint Loop::create(const char *id, const char *loopFile, char *loopDeviceBuffer, size_t len) { 126a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat int i; 127a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat int fd; 128a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat char filename[256]; 129a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 130a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat for (i = 0; i < LOOP_MAX; i++) { 131a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat struct loop_info li; 132a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat int rc; 133a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 134a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat sprintf(filename, "/dev/block/loop%d", i); 135a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 1368da6bcb006f4e4257cdd685e35e910a6334f6ceaSan Mehat /* 1378da6bcb006f4e4257cdd685e35e910a6334f6ceaSan Mehat * The kernel starts us off with 8 loop nodes, but more 1388da6bcb006f4e4257cdd685e35e910a6334f6ceaSan Mehat * are created on-demand if needed. 1398da6bcb006f4e4257cdd685e35e910a6334f6ceaSan Mehat */ 1408da6bcb006f4e4257cdd685e35e910a6334f6ceaSan Mehat mode_t mode = 0660 | S_IFBLK; 141b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat unsigned int dev = (0xff & i) | ((i << 12) & 0xfff00000) | (7 << 8); 1428da6bcb006f4e4257cdd685e35e910a6334f6ceaSan Mehat if (mknod(filename, mode, dev) < 0) { 1438da6bcb006f4e4257cdd685e35e910a6334f6ceaSan Mehat if (errno != EEXIST) { 14497ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Error creating loop device node (%s)", strerror(errno)); 1458da6bcb006f4e4257cdd685e35e910a6334f6ceaSan Mehat return -1; 1468da6bcb006f4e4257cdd685e35e910a6334f6ceaSan Mehat } 1478da6bcb006f4e4257cdd685e35e910a6334f6ceaSan Mehat } 1488da6bcb006f4e4257cdd685e35e910a6334f6ceaSan Mehat 149a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if ((fd = open(filename, O_RDWR)) < 0) { 15097ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Unable to open %s (%s)", filename, strerror(errno)); 151a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return -1; 152a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 153a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 154e17e91f63b3cceb2ef670947fd7f9ff3c40ee1a7Kenny Root rc = ioctl(fd, LOOP_GET_STATUS, &li); 155a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (rc < 0 && errno == ENXIO) 156a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat break; 157a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 1588da6bcb006f4e4257cdd685e35e910a6334f6ceaSan Mehat close(fd); 1598da6bcb006f4e4257cdd685e35e910a6334f6ceaSan Mehat 160a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (rc < 0) { 16197ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Unable to get loop status for %s (%s)", filename, 162a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat strerror(errno)); 163a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return -1; 164a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 165a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 166a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 167a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (i == LOOP_MAX) { 16897ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Exhausted all loop devices"); 169a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat errno = ENOSPC; 170a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return -1; 171a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 172a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 1738da6bcb006f4e4257cdd685e35e910a6334f6ceaSan Mehat strncpy(loopDeviceBuffer, filename, len -1); 174a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 1758da6bcb006f4e4257cdd685e35e910a6334f6ceaSan Mehat int file_fd; 176a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 177a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if ((file_fd = open(loopFile, O_RDWR)) < 0) { 17897ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Unable to open %s (%s)", loopFile, strerror(errno)); 179a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat close(fd); 180a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return -1; 181a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 182a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 183a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (ioctl(fd, LOOP_SET_FD, file_fd) < 0) { 18497ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Error setting up loopback interface (%s)", strerror(errno)); 185a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat close(file_fd); 186a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat close(fd); 187a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return -1; 188a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 189a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 190508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root struct loop_info64 li; 191a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 192a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat memset(&li, 0, sizeof(li)); 193508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root strncpy((char*) li.lo_crypt_name, id, LO_NAME_SIZE); 194508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root strncpy((char*) li.lo_file_name, loopFile, LO_NAME_SIZE); 195a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 196508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root if (ioctl(fd, LOOP_SET_STATUS64, &li) < 0) { 19797ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Error setting loopback status (%s)", strerror(errno)); 198a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat close(file_fd); 199a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat close(fd); 200a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return -1; 201a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 202a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 203a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat close(fd); 204a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat close(file_fd); 205a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 206a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return 0; 207a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat} 208a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 209a19b250bd273455933ca3502cf2c2e0a803aff77San Mehatint Loop::destroyByDevice(const char *loopDevice) { 210a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat int device_fd; 211a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 212a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat device_fd = open(loopDevice, O_RDONLY); 213a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (device_fd < 0) { 21497ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Failed to open loop (%d)", errno); 215a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return -1; 216a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 217a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 218a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (ioctl(device_fd, LOOP_CLR_FD, 0) < 0) { 21997ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Failed to destroy loop (%d)", errno); 220a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat close(device_fd); 221a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return -1; 222a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 223a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 224a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat close(device_fd); 225a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return 0; 226a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat} 227a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 228a19b250bd273455933ca3502cf2c2e0a803aff77San Mehatint Loop::destroyByFile(const char *loopFile) { 229a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat errno = ENOSYS; 230a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return -1; 231a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat} 232a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 2338b8f71b1d760411279f3b07a5c97709f052c689eSan Mehatint Loop::createImageFile(const char *file, unsigned int numSectors) { 234a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat int fd; 235a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 236a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if ((fd = creat(file, 0600)) < 0) { 23797ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Error creating imagefile (%s)", strerror(errno)); 238a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return -1; 239a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 240a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 2418b8f71b1d760411279f3b07a5c97709f052c689eSan Mehat if (ftruncate(fd, numSectors * 512) < 0) { 24297ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Error truncating imagefile (%s)", strerror(errno)); 243a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat close(fd); 244a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return -1; 245a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 246a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat close(fd); 247a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return 0; 248a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat} 249