Merge "Remove dead code." am: a78c6867 am: 4cc92cc0

# Copyright 2011 The Android Open Source Project

LOCAL_PATH:= $(call my-dir)

common_static_libraries := \

    liblogwrap \

    libfec \

    libfec_rs \

    libbase \

    libcrypto_utils \

    libcrypto \

    libext4_utils \

    libsquashfs_utils \

    libselinux \

    libavb

include $(CLEAR_VARS)

LOCAL_SANITIZE := integer

LOCAL_SRC_FILES:= fs_mgr_main.cpp

LOCAL_C_INCLUDES := $(LOCAL_PATH)/include

LOCAL_MODULE:= fs_mgr

LOCAL_MODULE_TAGS := optional

LOCAL_REQUIRED_MODULES := mke2fs mke2fs.conf e2fsdroid

LOCAL_FORCE_STATIC_EXECUTABLE := true

LOCAL_MODULE_PATH := $(TARGET_ROOT_OUT)/sbin

LOCAL_UNSTRIPPED_PATH := $(TARGET_ROOT_OUT_UNSTRIPPED)

LOCAL_STATIC_LIBRARIES := libfs_mgr \

    $(common_static_libraries) \

    libcutils \

    liblog \

    libc \

    libsparse \

    libz \

    libselinux

LOCAL_CXX_STL := libc++_static

LOCAL_CFLAGS := -Werror

include $(BUILD_EXECUTABLE)

/*

 * Copyright (C) 2012 The Android Open Source Project

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 *      http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */

#include <stdio.h>

#include <string.h>

#include <stdlib.h>

#include "fs_mgr_priv.h"

#ifdef _LIBGEN_H

#warning "libgen.h must not be included"

#endif

char *me = nullptr;

static void usage(void)

{

    LERROR << me << ": usage: " << me

           << " <-a | -n mnt_point blk_dev | -u> <fstab_file>";

    exit(1);

}

/* Parse the command line.  If an error is encountered, print an error message

 * and exit the program, do not return to the caller.

 * Return the number of argv[] entries consumed.

 */

static void parse_options(int argc, char * const argv[], int *a_flag, int *u_flag, int *n_flag,

                     const char **n_name, const char **n_blk_dev)

{

    me = basename(argv[0]);

    if (argc <= 1) {

        usage();

    }

    if (!strcmp(argv[1], "-a")) {

        if (argc != 3) {

            usage();

        }

        *a_flag = 1;

    }

    if (!strcmp(argv[1], "-n")) {

        if (argc != 5) {

            usage();

        }

        *n_flag = 1;

        *n_name = argv[2];

        *n_blk_dev = argv[3];

    }

    if (!strcmp(argv[1], "-u")) {

        if (argc != 3) {

            usage();

        }

        *u_flag = 1;

    }

    /* If no flag is specified, it's an error */

    if (!(*a_flag | *n_flag | *u_flag)) {

        usage();

    }

    /* If more than one flag is specified, it's an error */

    if ((*a_flag + *n_flag + *u_flag) > 1) {

        usage();

    }

    return;

}

int main(int argc, char * const argv[])

{

    int a_flag=0;

    int u_flag=0;

    int n_flag=0;

    const char *n_name=NULL;

    const char *n_blk_dev=NULL;

    const char *fstab_file=NULL;

    struct fstab *fstab=NULL;

    setenv("ANDROID_LOG_TAGS", "*:i", 1); // Set log level to INFO

    android::base::InitLogging(

        const_cast<char **>(argv), &android::base::KernelLogger);

    parse_options(argc, argv, &a_flag, &u_flag, &n_flag, &n_name, &n_blk_dev);

    /* The name of the fstab file is last, after the option */

    fstab_file = argv[argc - 1];

    fstab = fs_mgr_read_fstab(fstab_file);

    if (a_flag) {

        return fs_mgr_mount_all(fstab, MOUNT_MODE_DEFAULT);

    } else if (n_flag) {

        return fs_mgr_do_mount(fstab, n_name, (char *)n_blk_dev, 0);

    } else if (u_flag) {

        return fs_mgr_unmount_all(fstab);

    } else {

        LERROR << me << ": Internal error, unknown option";

        exit(1);

    }

    fs_mgr_free_fstab(fstab);

    /* Should not get here */

    exit(1);

}