make_ext4fs_main.c revision 00740cc344cabd6cae6a8cc661c04c9c79b91a71 
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 ] [ -t ] [ -w ] [ -c ] [ -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	int init_itabs = 0;
52
53	while ((opt = getopt(argc, argv, "l:j:b:g:i:I:L:a:fwzJsct")) != -1) {
54		switch (opt) {
55		case 'l':
56			info.len = parse_num(optarg);
57			break;
58		case 'j':
59			info.journal_blocks = parse_num(optarg);
60			break;
61		case 'b':
62			info.block_size = parse_num(optarg);
63			break;
64		case 'g':
65			info.blocks_per_group = parse_num(optarg);
66			break;
67		case 'i':
68			info.inodes = parse_num(optarg);
69			break;
70		case 'I':
71			info.inode_size = parse_num(optarg);
72			break;
73		case 'L':
74			info.label = optarg;
75			break;
76		case 'f':
77			force = 1;
78			break;
79		case 'a':
80			android = 1;
81			mountpoint = optarg;
82			break;
83		case 'w':
84			wipe = 1;
85			break;
86		case 'z':
87			gzip = 1;
88			break;
89		case 'J':
90			info.no_journal = 1;
91			break;
92		case 'c':
93			crc = 1;
94			break;
95		case 's':
96			sparse = 1;
97			break;
98		case 't':
99			init_itabs = 1;
100			break;
101		default: /* '?' */
102			usage(argv[0]);
103			exit(EXIT_FAILURE);
104		}
105	}
106
107	if (gzip && sparse) {
108		fprintf(stderr, "Cannot specify both gzip and sparse\n");
109		usage(argv[0]);
110		exit(EXIT_FAILURE);
111	}
112
113	if (wipe && sparse) {
114		fprintf(stderr, "Cannot specifiy both wipe and sparse\n");
115		usage(argv[0]);
116		exit(EXIT_FAILURE);
117	}
118
119	if (wipe && gzip) {
120		fprintf(stderr, "Cannot specifiy both wipe and gzip\n");
121		usage(argv[0]);
122		exit(EXIT_FAILURE);
123	}
124
125	if (optind >= argc) {
126		fprintf(stderr, "Expected filename after options\n");
127		usage(argv[0]);
128		exit(EXIT_FAILURE);
129	}
130
131	filename = argv[optind++];
132
133	if (optind < argc)
134		directory = argv[optind++];
135
136	if (optind < argc) {
137		fprintf(stderr, "Unexpected argument: %s\n", argv[optind]);
138		usage(argv[0]);
139		exit(EXIT_FAILURE);
140	}
141
142	return make_ext4fs_internal(filename, directory, mountpoint, android, gzip,
143			sparse, crc, wipe, init_itabs);
144}
145