make_ext4fs_main.c revision c2470654d4b4db09a7052fc5fa108ac21f1b1948 
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 <unistd.h>
18#include <libgen.h>
19
20#if defined(__linux__)
21#include <linux/fs.h>
22#elif defined(__APPLE__) && defined(__MACH__)
23#include <sys/disk.h>
24#endif
25
26#include "make_ext4fs.h"
27
28extern struct fs_info info;
29
30
31static void usage(char *path)
32{
33        fprintf(stderr, "%s [ -l <len> ] [ -j <journal size> ] [ -b <block_size> ]\n", basename(path));
34        fprintf(stderr, "    [ -g <blocks per group> ] [ -i <inodes> ] [ -I <inode size> ]\n");
35        fprintf(stderr, "    [ -L <label> ] [ -f ] [ -a <android mountpoint> ]\n");
36        fprintf(stderr, "    [ -z | -s ] [ -J ]\n");
37        fprintf(stderr, "    <filename> [<directory>]\n");
38}
39
40int main(int argc, char **argv)
41{
42        int opt;
43        const char *filename = NULL;
44        const char *directory = NULL;
45        char *mountpoint = "";
46        int android = 0;
47        int gzip = 0;
48        int sparse = 0;
49        int crc = 0;
50        int wipe = 0;
51
52        while ((opt = getopt(argc, argv, "l:j:b:g:i:I:L:a:fwzJsc")) != -1) {
53                switch (opt) {
54                case 'l':
55                        info.len = parse_num(optarg);
56                        break;
57                case 'j':
58                        info.journal_blocks = parse_num(optarg);
59                        break;
60                case 'b':
61                        info.block_size = parse_num(optarg);
62                        break;
63                case 'g':
64                        info.blocks_per_group = parse_num(optarg);
65                        break;
66                case 'i':
67                        info.inodes = parse_num(optarg);
68                        break;
69                case 'I':
70                        info.inode_size = parse_num(optarg);
71                        break;
72                case 'L':
73                        info.label = optarg;
74                        break;
75                case 'f':
76                        force = 1;
77                        break;
78                case 'a':
79                        android = 1;
80                        mountpoint = optarg;
81                        break;
82                case 'w':
83                        wipe = 1;
84                        break;
85                case 'z':
86                        gzip = 1;
87                        break;
88		case 'J':
89			info.no_journal = 1;
90			break;
91		case 'c':
92			crc = 1;
93			break;
94                case 's':
95                        sparse = 1;
96                        break;
97                default: /* '?' */
98                        usage(argv[0]);
99                        exit(EXIT_FAILURE);
100                }
101        }
102
103	if (gzip && sparse) {
104                fprintf(stderr, "Cannot specify both gzip and sparse\n");
105                usage(argv[0]);
106                exit(EXIT_FAILURE);
107	}
108
109        if (wipe && sparse) {
110                fprintf(stderr, "Cannot specifiy both wipe and sparse\n");
111                usage(argv[0]);
112                exit(EXIT_FAILURE);
113        }
114
115        if (wipe && gzip) {
116                fprintf(stderr, "Cannot specifiy both wipe and gzip\n");
117                usage(argv[0]);
118                exit(EXIT_FAILURE);
119        }
120
121        if (optind >= argc) {
122                fprintf(stderr, "Expected filename after options\n");
123                usage(argv[0]);
124                exit(EXIT_FAILURE);
125        }
126
127        filename = argv[optind++];
128
129        if (optind < argc)
130                directory = argv[optind++];
131
132        if (optind < argc) {
133                fprintf(stderr, "Unexpected argument: %s\n", argv[optind]);
134                usage(argv[0]);
135                exit(EXIT_FAILURE);
136        }
137
138        return make_ext4fs_internal(filename, directory, mountpoint, android, gzip,
139        		sparse, crc, wipe);
140}
141