make_ext4fs_main.c revision 8642b7fba54727a38f751516bcdc452fb09ef610
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 50 while ((opt = getopt(argc, argv, "l:j:b:g:i:I:L:a:fzJs")) != -1) { 51 switch (opt) { 52 case 'l': 53 info.len = parse_num(optarg); 54 break; 55 case 'j': 56 info.journal_blocks = parse_num(optarg); 57 break; 58 case 'b': 59 info.block_size = parse_num(optarg); 60 break; 61 case 'g': 62 info.blocks_per_group = parse_num(optarg); 63 break; 64 case 'i': 65 info.inodes = parse_num(optarg); 66 break; 67 case 'I': 68 info.inode_size = parse_num(optarg); 69 break; 70 case 'L': 71 info.label = optarg; 72 break; 73 case 'f': 74 force = 1; 75 break; 76 case 'a': 77 android = 1; 78 mountpoint = optarg; 79 break; 80 case 'z': 81 gzip = 1; 82 break; 83 case 'J': 84 info.no_journal = 1; 85 break; 86 case 's': 87 sparse = 1; 88 break; 89 default: /* '?' */ 90 usage(argv[0]); 91 exit(EXIT_FAILURE); 92 } 93 } 94 95 if (gzip && sparse) { 96 fprintf(stderr, "Cannot specify both gzip and sparse\n"); 97 usage(argv[0]); 98 exit(EXIT_FAILURE); 99 } 100 101 if (optind >= argc) { 102 fprintf(stderr, "Expected filename after options\n"); 103 usage(argv[0]); 104 exit(EXIT_FAILURE); 105 } 106 107 filename = argv[optind++]; 108 109 if (optind < argc) 110 directory = argv[optind++]; 111 112 if (optind < argc) { 113 fprintf(stderr, "Unexpected argument: %s\n", argv[optind]); 114 usage(argv[0]); 115 exit(EXIT_FAILURE); 116 } 117 118 return make_ext4fs(filename, directory, mountpoint, android, gzip, sparse); 119} 120