1/*
2 * Copyright (C) 2010 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#include <sparse/sparse.h>
18
19#include <fcntl.h>
20#include <stdbool.h>
21#include <stdio.h>
22#include <stdlib.h>
23#include <string.h>
24#include <sys/types.h>
25#include <sys/stat.h>
26#include <sys/types.h>
27#include <unistd.h>
28
29#ifndef O_BINARY
30#define O_BINARY 0
31#endif
32
33void usage()
34{
35  fprintf(stderr, "Usage: simg2img <sparse_image_files> <raw_image_file>\n");
36}
37
38int main(int argc, char *argv[])
39{
40	int in;
41	int out;
42	int i;
43	struct sparse_file *s;
44
45	if (argc < 3) {
46		usage();
47		exit(-1);
48	}
49
50	out = open(argv[argc - 1], O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, 0664);
51	if (out < 0) {
52		fprintf(stderr, "Cannot open output file %s\n", argv[argc - 1]);
53		exit(-1);
54	}
55
56	for (i = 1; i < argc - 1; i++) {
57		if (strcmp(argv[i], "-") == 0) {
58			in = STDIN_FILENO;
59		} else {
60			in = open(argv[i], O_RDONLY | O_BINARY);
61			if (in < 0) {
62				fprintf(stderr, "Cannot open input file %s\n", argv[i]);
63				exit(-1);
64			}
65		}
66
67		s = sparse_file_import(in, true, false);
68		if (!s) {
69			fprintf(stderr, "Failed to read sparse file\n");
70			exit(-1);
71		}
72
73		if (lseek(out, 0, SEEK_SET) == -1) {
74			perror("lseek failed");
75			exit(EXIT_FAILURE);
76		}
77
78		if (sparse_file_write(s, out, false, false, false) < 0) {
79			fprintf(stderr, "Cannot write output file\n");
80			exit(-1);
81		}
82		sparse_file_destroy(s);
83		close(in);
84	}
85
86	close(out);
87
88	exit(0);
89}
90
91