167 lines
4.3 KiB
C++
167 lines
4.3 KiB
C++
/*
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* Copyright (C) 2007 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <hardware_legacy/IMountService.h>
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#include <binder/BpBinder.h>
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#include <binder/IServiceManager.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <time.h>
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namespace android {
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static sp<IMountService> gMountService;
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static void init() {
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sp<IServiceManager> sm = defaultServiceManager();
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sp<IBinder> binder = sm->getService(String16("mount"));
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gMountService = interface_cast<IMountService>(binder);
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if (gMountService == 0) {
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fprintf(stderr, "could not get MountService\n");
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exit(1);
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}
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}
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static bool isMounted(const char* mountPoint) {
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char s[2000];
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FILE *f = fopen("/proc/mounts", "r");
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bool mounted = false;
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while (fgets(s, sizeof(s), f))
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{
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char *c, *path = NULL;
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for (c = s; *c; c++)
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{
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if (*c == ' ')
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{
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*c = 0;
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path = c + 1;
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break;
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}
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}
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for (c = path; *c; c++)
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{
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if (*c == ' ')
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{
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*c = '\0';
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break;
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}
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}
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if (strcmp(mountPoint, path) == 0) {
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mounted = true;
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break;
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}
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}
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fclose(f);
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return mounted;
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}
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static void millisecondSleep(int milliseconds) {
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struct timespec reqt, remt;
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reqt.tv_sec = milliseconds / 1000;
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reqt.tv_nsec = 1000000 * (milliseconds % 1000);
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nanosleep(&reqt, &remt) ;
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}
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static int mount(const char* path) {
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String16 string(path);
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gMountService->mountMedia(string);
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for (int i = 0; i < 10; i++) {
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if (isMounted(path)) {
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return 0;
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}
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millisecondSleep(500);
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}
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fprintf(stderr, "failed to mount %s\n", path);
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return -1;
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}
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static int unmount(const char* path) {
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String16 string(path);
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gMountService->unmountMedia(string);
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for (int i = 0; i < 10; i++) {
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if (!isMounted(path)) {
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return 0;
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}
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millisecondSleep(500);
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}
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fprintf(stderr, "failed to unmount %s\n", path);
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return -1;
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}
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static int format(const char* path) {
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String16 string(path);
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if (isMounted(path))
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return -EBUSY;
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gMountService->formatMedia(string);
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return 0;
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}
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static int umsEnable(bool enable) {
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gMountService->setMassStorageEnabled(enable);
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return 0;
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}
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};
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int main(int argc, char **argv)
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{
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const char* command = (argc > 1 ? argv[1] : "");
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const char* argument = (argc > 2 ? argv[2] : "");
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if (strcmp(command, "mount") == 0) {
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android::init();
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return android::mount(argument);
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} else if (strcmp(command, "format") == 0) {
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android::init();
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return android::format(argument);
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} else if (strcmp(command, "unmount") == 0) {
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android::init();
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return android::unmount(argument);
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} else if (strcmp(command, "ums") == 0) {
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if (strcmp(argument, "enable") == 0) {
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android::init();
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return android::umsEnable(true);
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} else if (strcmp(argument, "disable") == 0) {
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android::init();
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return android::umsEnable(false);
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}
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}
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fprintf(stderr, "usage:\n"
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" sdutil mount <mount path> - mounts the SD card at the given mount point\n"
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" sdutil unmount <mount path> - unmounts the SD card at the given mount point\n"
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" sdutil format <mount path> - formats the SD card at the given mount point\n"
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" sdutil ums enable - enables USB mass storage\n"
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" sdutil ums disable - disnables USB mass storage\n"
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);
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return -1;
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}
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