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
usage()33 void usage()
34 {
35 fprintf(stderr, "Usage: simg2img <sparse_image_files> <raw_image_file>\n");
36 }
37
main(int argc,char * argv[])38 int 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