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88 lines
2.8 KiB
88 lines
2.8 KiB
/*
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* Copyright (C) 2016 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 <ctype.h>
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#include <errno.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 <sys/cdefs.h>
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#define MAX_PATH 4096
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#define MAX_FILE_VERSION 100
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#ifndef __STRING
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#define __STRING(x) #x
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#endif
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#define ___STRING(x) __STRING(x)
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static void usage(char* filename) {
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fprintf(stderr, "Usage: %s input_blk_alloc_file output_base_fs_file \n", filename);
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}
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int main(int argc, char** argv) {
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FILE *blk_alloc_file = NULL, *base_fs_file = NULL;
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char filename[MAX_PATH + 1], file_version[MAX_FILE_VERSION + 1], *spaced_allocs = NULL;
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size_t spaced_allocs_len = 0;
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if (argc != 3) {
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usage(argv[0]);
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exit(EXIT_FAILURE);
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}
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blk_alloc_file = fopen(argv[1], "r");
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if (blk_alloc_file == NULL) {
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fprintf(stderr, "failed to open %s: %s\n", argv[1], strerror(errno));
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exit(EXIT_FAILURE);
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}
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base_fs_file = fopen(argv[2], "w");
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if (base_fs_file == NULL) {
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fprintf(stderr, "failed to open %s: %s\n", argv[2], strerror(errno));
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exit(EXIT_FAILURE);
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}
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if (fscanf(blk_alloc_file, "Base EXT4 version %" ___STRING(MAX_FILE_VERSION) "s",
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file_version) > 0) {
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int c;
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printf("%s is already in *.base_fs format, just copying into %s...\n", argv[1], argv[2]);
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rewind(blk_alloc_file);
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while ((c = fgetc(blk_alloc_file)) != EOF) {
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fputc(c, base_fs_file);
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}
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return 0;
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} else {
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printf("Converting %s into *.base_fs format as %s...\n", argv[1], argv[2]);
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rewind(blk_alloc_file);
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}
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fprintf(base_fs_file, "Base EXT4 version 1.0\n");
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while (fscanf(blk_alloc_file, "%" ___STRING(MAX_PATH) "s ", filename) != EOF) {
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int i;
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fprintf(base_fs_file, "%s ", filename);
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if (getline(&spaced_allocs, &spaced_allocs_len, blk_alloc_file) == -1) {
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fprintf(stderr, "Bad blk_alloc format\n");
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exit(EXIT_FAILURE);
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}
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for (i = 0; spaced_allocs[i]; i++) {
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if (spaced_allocs[i] == ' ') {
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if (!isspace(spaced_allocs[i + 1])) fputc(',', base_fs_file);
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} else
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fputc(spaced_allocs[i], base_fs_file);
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}
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}
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free(spaced_allocs);
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fclose(blk_alloc_file);
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fclose(base_fs_file);
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return 0;
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}
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