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Import libsparse sources
Signed-off-by: Jo-Philipp Wich <[email protected]>
1 parent 58ace71 commit e512570

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‎libsparse/Android.mk‎

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# Copyright 2010 The Android Open Source Project
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LOCAL_PATH:= $(call my-dir)
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libsparse_src_files := \
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backed_block.c \
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output_file.c \
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sparse.c \
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sparse_crc32.c \
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sparse_err.c \
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sparse_read.c
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include $(CLEAR_VARS)
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LOCAL_EXPORT_C_INCLUDE_DIRS := $(LOCAL_PATH)/include
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LOCAL_SRC_FILES := $(libsparse_src_files)
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LOCAL_MODULE := libsparse_host
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LOCAL_STATIC_LIBRARIES := libz
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LOCAL_C_INCLUDES := $(LOCAL_PATH)/include
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LOCAL_CFLAGS := -Werror
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include $(BUILD_HOST_STATIC_LIBRARY)
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include $(CLEAR_VARS)
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LOCAL_EXPORT_C_INCLUDE_DIRS := $(LOCAL_PATH)/include
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LOCAL_SRC_FILES := $(libsparse_src_files)
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LOCAL_MODULE := libsparse
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LOCAL_C_INCLUDES += $(LOCAL_PATH)/include
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LOCAL_SHARED_LIBRARIES := \
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libz
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LOCAL_CFLAGS := -Werror
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include $(BUILD_SHARED_LIBRARY)
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include $(CLEAR_VARS)
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LOCAL_EXPORT_C_INCLUDE_DIRS := $(LOCAL_PATH)/include
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LOCAL_SRC_FILES := $(libsparse_src_files)
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LOCAL_MODULE := libsparse_static
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LOCAL_C_INCLUDES += $(LOCAL_PATH)/include
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LOCAL_STATIC_LIBRARIES := libz
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LOCAL_CFLAGS := -Werror
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include $(BUILD_STATIC_LIBRARY)
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include $(CLEAR_VARS)
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LOCAL_SRC_FILES := simg2img.c \
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sparse_crc32.c
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LOCAL_MODULE := simg2img_host
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# Need a unique module name, but exe should still be called simg2img
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LOCAL_MODULE_STEM := simg2img
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LOCAL_STATIC_LIBRARIES := \
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libsparse_host \
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libz
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LOCAL_CFLAGS := -Werror
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include $(BUILD_HOST_EXECUTABLE)
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include $(CLEAR_VARS)
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LOCAL_SRC_FILES := simg2img.c \
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sparse_crc32.c
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LOCAL_MODULE := simg2img
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LOCAL_STATIC_LIBRARIES := \
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libsparse_static \
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libz
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LOCAL_CFLAGS := -Werror
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include $(BUILD_EXECUTABLE)
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include $(CLEAR_VARS)
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LOCAL_SRC_FILES := img2simg.c
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LOCAL_MODULE := img2simg_host
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# Need a unique module name, but exe should still be called simg2img
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LOCAL_MODULE_STEM := img2simg
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LOCAL_STATIC_LIBRARIES := \
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libsparse_host \
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libz
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LOCAL_CFLAGS := -Werror
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include $(BUILD_HOST_EXECUTABLE)
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include $(CLEAR_VARS)
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LOCAL_SRC_FILES := img2simg.c
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LOCAL_MODULE := img2simg
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LOCAL_STATIC_LIBRARIES := \
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libsparse_static \
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libz
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LOCAL_CFLAGS := -Werror
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include $(BUILD_EXECUTABLE)
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ifneq ($(HOST_OS),windows)
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include $(CLEAR_VARS)
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LOCAL_SRC_FILES := append2simg.c
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LOCAL_MODULE := append2simg
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LOCAL_STATIC_LIBRARIES := \
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libsparse_host \
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libz
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LOCAL_CFLAGS := -Werror
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include $(BUILD_HOST_EXECUTABLE)
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endif
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include $(CLEAR_VARS)
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LOCAL_MODULE := simg_dump.py
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LOCAL_SRC_FILES := simg_dump.py
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LOCAL_MODULE_CLASS := EXECUTABLES
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LOCAL_IS_HOST_MODULE := true
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LOCAL_CFLAGS := -Werror
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include $(BUILD_PREBUILT)

‎libsparse/append2simg.c‎

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/*
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* Copyright (C) 2013 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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#define _FILE_OFFSET_BITS 64
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#define _LARGEFILE64_SOURCE 1
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#define _GNU_SOURCE
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#include <errno.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <sparse/sparse.h>
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#include "sparse_file.h"
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#include "backed_block.h"
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#ifndef O_BINARY
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#define O_BINARY 0
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#endif
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#if defined(__APPLE__) && defined(__MACH__)
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#define lseek64 lseek
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#endif
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#if defined(__APPLE__) && defined(__MACH__)
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#define lseek64 lseek
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#define off64_t off_t
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#endif
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void usage()
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{
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fprintf(stderr, "Usage: append2simg <output> <input>\n");
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}
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int main(int argc, char *argv[])
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{
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int output;
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int output_block;
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char *output_path;
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struct sparse_file *sparse_output;
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int input;
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char *input_path;
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off64_t input_len;
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int tmp_fd;
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char *tmp_path;
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int ret;
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if (argc == 3) {
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output_path = argv[1];
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input_path = argv[2];
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} else {
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usage();
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exit(-1);
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}
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ret = asprintf(&tmp_path, "%s.append2simg", output_path);
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if (ret < 0) {
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fprintf(stderr, "Couldn't allocate filename\n");
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exit(-1);
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}
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output = open(output_path, O_RDWR | O_BINARY);
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if (output < 0) {
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fprintf(stderr, "Couldn't open output file (%s)\n", strerror(errno));
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exit(-1);
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}
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sparse_output = sparse_file_import_auto(output, true, true);
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if (!sparse_output) {
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fprintf(stderr, "Couldn't import output file\n");
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exit(-1);
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}
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input = open(input_path, O_RDONLY | O_BINARY);
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if (input < 0) {
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fprintf(stderr, "Couldn't open input file (%s)\n", strerror(errno));
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exit(-1);
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}
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input_len = lseek64(input, 0, SEEK_END);
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if (input_len < 0) {
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fprintf(stderr, "Couldn't get input file length (%s)\n", strerror(errno));
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exit(-1);
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} else if (input_len % sparse_output->block_size) {
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fprintf(stderr, "Input file is not a multiple of the output file's block size");
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exit(-1);
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}
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lseek64(input, 0, SEEK_SET);
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output_block = sparse_output->len / sparse_output->block_size;
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if (sparse_file_add_fd(sparse_output, input, 0, input_len, output_block) < 0) {
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fprintf(stderr, "Couldn't add input file\n");
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exit(-1);
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}
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sparse_output->len += input_len;
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tmp_fd = open(tmp_path, O_WRONLY | O_CREAT | O_BINARY, 0664);
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if (tmp_fd < 0) {
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fprintf(stderr, "Couldn't open temporary file (%s)\n", strerror(errno));
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exit(-1);
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}
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lseek64(output, 0, SEEK_SET);
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if (sparse_file_write(sparse_output, tmp_fd, false, true, false) < 0) {
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fprintf(stderr, "Failed to write sparse file\n");
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exit(-1);
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}
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sparse_file_destroy(sparse_output);
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close(tmp_fd);
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close(output);
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close(input);
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ret = rename(tmp_path, output_path);
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if (ret < 0) {
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fprintf(stderr, "Failed to rename temporary file (%s)\n", strerror(errno));
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exit(-1);
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}
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free(tmp_path);
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exit(0);
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}

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