newfs_msdos.c revision ec3b164524fda0beb30354627f3e3f9d0c45126a
1dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 2dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Copyright (c) 1998 Robert Nordier 3dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * All rights reserved. 4dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * 5dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Redistribution and use in source and binary forms, with or without 6dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * modification, are permitted provided that the following conditions 7dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * are met: 8dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * 1. Redistributions of source code must retain the above copyright 9dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * notice, this list of conditions and the following disclaimer. 10dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * 2. Redistributions in binary form must reproduce the above copyright 11dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * notice, this list of conditions and the following disclaimer in 12dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * the documentation and/or other materials provided with the 13dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * distribution. 14dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * 15dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS 16dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 17dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY 19dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE 21dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 22dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER 23dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 24dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN 25dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 27dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 2872eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat#ifndef lint 2972eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehatstatic const char rcsid[] = 3072eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat "$FreeBSD: src/sbin/newfs_msdos/newfs_msdos.c,v 1.33 2009/04/11 14:56:29 ed Exp $"; 3172eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat#endif /* not lint */ 32dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 33dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <sys/param.h> 3472eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat 3572eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat#ifndef ANDROID 3672eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat #include <sys/fdcio.h> 3772eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat #include <sys/disk.h> 3872eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat #include <sys/disklabel.h> 3972eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat #include <sys/mount.h> 4072eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat#else 4172eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat #include <stdarg.h> 4272eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat #include <linux/fs.h> 4372eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat #include <linux/hdreg.h> 44dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#endif 4572eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat 46dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <sys/stat.h> 47dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <sys/time.h> 48dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 49dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <ctype.h> 50dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <err.h> 51dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <errno.h> 52dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <fcntl.h> 5372eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat#include <inttypes.h> 54dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <paths.h> 55dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <stdio.h> 56dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <stdlib.h> 57dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <string.h> 58dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <time.h> 59dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <unistd.h> 60dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 61dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#define MAXU16 0xffff /* maximum unsigned 16-bit quantity */ 62dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#define BPN 4 /* bits per nibble */ 63dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#define NPB 2 /* nibbles per byte */ 64dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 65dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#define DOSMAGIC 0xaa55 /* DOS magic number */ 6672eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat#define MINBPS 512 /* minimum bytes per sector */ 67dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#define MAXSPC 128 /* maximum sectors per cluster */ 68dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#define MAXNFT 16 /* maximum number of FATs */ 69dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#define DEFBLK 4096 /* default block size */ 70dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#define DEFBLK16 2048 /* default block size FAT16 */ 71dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#define DEFRDE 512 /* default root directory entries */ 72dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#define RESFTE 2 /* reserved FAT entries */ 73dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#define MINCLS12 1 /* minimum FAT12 clusters */ 74dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#define MINCLS16 0x1000 /* minimum FAT16 clusters */ 75dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#define MINCLS32 2 /* minimum FAT32 clusters */ 76dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#define MAXCLS12 0xfed /* maximum FAT12 clusters */ 77dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#define MAXCLS16 0xfff5 /* maximum FAT16 clusters */ 78dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#define MAXCLS32 0xffffff5 /* maximum FAT32 clusters */ 79dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 80dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#define mincls(fat) ((fat) == 12 ? MINCLS12 : \ 81dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project (fat) == 16 ? MINCLS16 : \ 82dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project MINCLS32) 83dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 84dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#define maxcls(fat) ((fat) == 12 ? MAXCLS12 : \ 85dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project (fat) == 16 ? MAXCLS16 : \ 86dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project MAXCLS32) 87dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 88dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#define mk1(p, x) \ 89dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project (p) = (u_int8_t)(x) 90dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 91dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#define mk2(p, x) \ 92dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project (p)[0] = (u_int8_t)(x), \ 93dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project (p)[1] = (u_int8_t)((x) >> 010) 94dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 95dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#define mk4(p, x) \ 96dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project (p)[0] = (u_int8_t)(x), \ 97dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project (p)[1] = (u_int8_t)((x) >> 010), \ 98dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project (p)[2] = (u_int8_t)((x) >> 020), \ 99dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project (p)[3] = (u_int8_t)((x) >> 030) 100dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 101dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#define argto1(arg, lo, msg) argtou(arg, lo, 0xff, msg) 102dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#define argto2(arg, lo, msg) argtou(arg, lo, 0xffff, msg) 103dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#define argto4(arg, lo, msg) argtou(arg, lo, 0xffffffff, msg) 104dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#define argtox(arg, lo, msg) argtou(arg, lo, UINT_MAX, msg) 105dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 106dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstruct bs { 107dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project u_int8_t jmp[3]; /* bootstrap entry point */ 108dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project u_int8_t oem[8]; /* OEM name and version */ 109dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project}; 110dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 111dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstruct bsbpb { 112dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project u_int8_t bps[2]; /* bytes per sector */ 113dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project u_int8_t spc; /* sectors per cluster */ 114dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project u_int8_t res[2]; /* reserved sectors */ 115dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project u_int8_t nft; /* number of FATs */ 116dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project u_int8_t rde[2]; /* root directory entries */ 117dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project u_int8_t sec[2]; /* total sectors */ 118dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project u_int8_t mid; /* media descriptor */ 119dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project u_int8_t spf[2]; /* sectors per FAT */ 120dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project u_int8_t spt[2]; /* sectors per track */ 121dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project u_int8_t hds[2]; /* drive heads */ 122dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project u_int8_t hid[4]; /* hidden sectors */ 123dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project u_int8_t bsec[4]; /* big total sectors */ 124dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project}; 125dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 126dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstruct bsxbpb { 127dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project u_int8_t bspf[4]; /* big sectors per FAT */ 128dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project u_int8_t xflg[2]; /* FAT control flags */ 129dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project u_int8_t vers[2]; /* file system version */ 130dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project u_int8_t rdcl[4]; /* root directory start cluster */ 131dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project u_int8_t infs[2]; /* file system info sector */ 132dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project u_int8_t bkbs[2]; /* backup boot sector */ 133dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project u_int8_t rsvd[12]; /* reserved */ 134dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project}; 135dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 136dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstruct bsx { 137dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project u_int8_t drv; /* drive number */ 138dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project u_int8_t rsvd; /* reserved */ 139dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project u_int8_t sig; /* extended boot signature */ 140dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project u_int8_t volid[4]; /* volume ID number */ 141dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project u_int8_t label[11]; /* volume label */ 142dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project u_int8_t type[8]; /* file system type */ 143dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project}; 144dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 145dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstruct de { 146dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project u_int8_t namext[11]; /* name and extension */ 147dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project u_int8_t attr; /* attributes */ 148dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project u_int8_t rsvd[10]; /* reserved */ 149dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project u_int8_t time[2]; /* creation time */ 150dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project u_int8_t date[2]; /* creation date */ 151dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project u_int8_t clus[2]; /* starting cluster */ 152dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project u_int8_t size[4]; /* size */ 153dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project}; 154dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 155dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstruct bpb { 156dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project u_int bps; /* bytes per sector */ 157dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project u_int spc; /* sectors per cluster */ 158dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project u_int res; /* reserved sectors */ 159dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project u_int nft; /* number of FATs */ 160dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project u_int rde; /* root directory entries */ 161dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project u_int sec; /* total sectors */ 162dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project u_int mid; /* media descriptor */ 163dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project u_int spf; /* sectors per FAT */ 164dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project u_int spt; /* sectors per track */ 165dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project u_int hds; /* drive heads */ 166dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project u_int hid; /* hidden sectors */ 167dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project u_int bsec; /* big total sectors */ 168dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project u_int bspf; /* big sectors per FAT */ 169dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project u_int rdcl; /* root directory start cluster */ 170dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project u_int infs; /* file system info sector */ 171dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project u_int bkbs; /* backup boot sector */ 172dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project}; 173dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 17472eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat#define BPBGAP 0, 0, 0, 0, 0, 0 17572eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat 17672eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehatstatic struct { 17772eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat const char *name; 17872eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat struct bpb bpb; 17972eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat} const stdfmt[] = { 18072eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat {"160", {512, 1, 1, 2, 64, 320, 0xfe, 1, 8, 1, BPBGAP}}, 18172eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat {"180", {512, 1, 1, 2, 64, 360, 0xfc, 2, 9, 1, BPBGAP}}, 18272eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat {"320", {512, 2, 1, 2, 112, 640, 0xff, 1, 8, 2, BPBGAP}}, 18372eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat {"360", {512, 2, 1, 2, 112, 720, 0xfd, 2, 9, 2, BPBGAP}}, 18472eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat {"640", {512, 2, 1, 2, 112, 1280, 0xfb, 2, 8, 2, BPBGAP}}, 18572eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat {"720", {512, 2, 1, 2, 112, 1440, 0xf9, 3, 9, 2, BPBGAP}}, 18672eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat {"1200", {512, 1, 1, 2, 224, 2400, 0xf9, 7, 15, 2, BPBGAP}}, 18772eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat {"1232", {1024,1, 1, 2, 192, 1232, 0xfe, 2, 8, 2, BPBGAP}}, 18872eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat {"1440", {512, 1, 1, 2, 224, 2880, 0xf0, 9, 18, 2, BPBGAP}}, 18972eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat {"2880", {512, 2, 1, 2, 240, 5760, 0xf0, 9, 36, 2, BPBGAP}} 19072eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat}; 19172eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat 19272eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehatstatic const u_int8_t bootcode[] = { 193dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 0xfa, /* cli */ 194dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 0x31, 0xc0, /* xor ax,ax */ 195dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 0x8e, 0xd0, /* mov ss,ax */ 196dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 0xbc, 0x00, 0x7c, /* mov sp,7c00h */ 197dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 0xfb, /* sti */ 198dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 0x8e, 0xd8, /* mov ds,ax */ 199dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 0xe8, 0x00, 0x00, /* call $ + 3 */ 200dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 0x5e, /* pop si */ 201dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 0x83, 0xc6, 0x19, /* add si,+19h */ 202dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 0xbb, 0x07, 0x00, /* mov bx,0007h */ 203dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 0xfc, /* cld */ 204dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 0xac, /* lodsb */ 205dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 0x84, 0xc0, /* test al,al */ 206dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 0x74, 0x06, /* jz $ + 8 */ 207dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 0xb4, 0x0e, /* mov ah,0eh */ 208dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 0xcd, 0x10, /* int 10h */ 209dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 0xeb, 0xf5, /* jmp $ - 9 */ 210dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 0x30, 0xe4, /* xor ah,ah */ 211dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 0xcd, 0x16, /* int 16h */ 212dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 0xcd, 0x19, /* int 19h */ 213dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 0x0d, 0x0a, 214dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 'N', 'o', 'n', '-', 's', 'y', 's', 't', 215dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 'e', 'm', ' ', 'd', 'i', 's', 'k', 216dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 0x0d, 0x0a, 217dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 'P', 'r', 'e', 's', 's', ' ', 'a', 'n', 218dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 'y', ' ', 'k', 'e', 'y', ' ', 't', 'o', 219dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project ' ', 'r', 'e', 'b', 'o', 'o', 't', 220dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 0x0d, 0x0a, 221dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 0 222dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project}; 223dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 22472eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehatstatic void check_mounted(const char *, mode_t); 22572eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehatstatic void getstdfmt(const char *, struct bpb *); 22672eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehatstatic void getdiskinfo(int, const char *, const char *, int, 22772eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat struct bpb *); 228dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstatic void print_bpb(struct bpb *); 229dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstatic u_int ckgeom(const char *, u_int, const char *); 230dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstatic u_int argtou(const char *, u_int, u_int, const char *); 23172eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehatstatic off_t argtooff(const char *, const char *); 232dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstatic int oklabel(const char *); 233dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstatic void mklabel(u_int8_t *, const char *); 234dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstatic void setstr(u_int8_t *, const char *, size_t); 23572eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehatstatic void usage(void); 23672eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat 23772eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat#ifdef ANDROID 23872eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat#define powerof2(x) ((((x) - 1) & (x)) == 0) 23972eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat#define howmany(x, y) (((x) + ((y) - 1)) / (y)) 24072eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat#define MAX(x,y) ((x) > (y) ? (x) : (y)) 24172eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat#define MIN(a, b) ((a) < (b) ? (a) : (b)) 242dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 24372eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat#endif 244dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 245dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Construct a FAT12, FAT16, or FAT32 file system. 246dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 247dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectint 24872eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehatnewfs_msdos_main(int argc, char *argv[]) 249dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 25072eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat static const char opts[] = "@:NB:C:F:I:L:O:S:a:b:c:e:f:h:i:k:m:n:o:r:s:u:"; 25172eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat const char *opt_B = NULL, *opt_L = NULL, *opt_O = NULL, *opt_f = NULL; 25272eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat u_int opt_F = 0, opt_I = 0, opt_S = 0, opt_a = 0, opt_b = 0, opt_c = 0; 25372eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat u_int opt_e = 0, opt_h = 0, opt_i = 0, opt_k = 0, opt_m = 0, opt_n = 0; 25472eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat u_int opt_o = 0, opt_r = 0, opt_s = 0, opt_u = 0; 25572eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat int opt_N = 0; 25672eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat int Iflag = 0, mflag = 0, oflag = 0; 257dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project char buf[MAXPATHLEN]; 258dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project struct stat sb; 259dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project struct timeval tv; 260dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project struct bpb bpb; 261dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project struct tm *tm; 262dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project struct bs *bs; 263dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project struct bsbpb *bsbpb; 264dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project struct bsxbpb *bsxbpb; 265dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project struct bsx *bsx; 266dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project struct de *de; 267dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project u_int8_t *img; 268dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project const char *fname, *dtype, *bname; 269dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project ssize_t n; 270dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project time_t now; 271dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project u_int fat, bss, rds, cls, dir, lsn, x, x1, x2; 272dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int ch, fd, fd1; 27372eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat off_t opt_create = 0, opt_ofs = 0; 274dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 275dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project while ((ch = getopt(argc, argv, opts)) != -1) 276dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project switch (ch) { 27772eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat case '@': 27872eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat opt_ofs = argtooff(optarg, "offset"); 27972eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat break; 280dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case 'N': 281dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project opt_N = 1; 282dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 283dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case 'B': 284dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project opt_B = optarg; 285dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 28672eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat case 'C': 28772eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat opt_create = argtooff(optarg, "create size"); 28872eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat break; 289dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case 'F': 290dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (strcmp(optarg, "12") && 291dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project strcmp(optarg, "16") && 292dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project strcmp(optarg, "32")) 29372eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat errx(1, "%s: bad FAT type", optarg); 294dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project opt_F = atoi(optarg); 295dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 296dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case 'I': 297dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project opt_I = argto4(optarg, 0, "volume ID"); 298dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project Iflag = 1; 299dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 300dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case 'L': 301dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (!oklabel(optarg)) 30272eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat errx(1, "%s: bad volume label", optarg); 303dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project opt_L = optarg; 304dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 305dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case 'O': 306dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (strlen(optarg) > 8) 30772eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat errx(1, "%s: bad OEM string", optarg); 308dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project opt_O = optarg; 309dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 310dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case 'S': 311dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project opt_S = argto2(optarg, 1, "bytes/sector"); 312dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 313dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case 'a': 314dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project opt_a = argto4(optarg, 1, "sectors/FAT"); 315dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 316dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case 'b': 317dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project opt_b = argtox(optarg, 1, "block size"); 318dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project opt_c = 0; 319dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 320dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case 'c': 321dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project opt_c = argto1(optarg, 1, "sectors/cluster"); 322dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project opt_b = 0; 323dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 324dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case 'e': 325dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project opt_e = argto2(optarg, 1, "directory entries"); 326dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 32772eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat case 'f': 32872eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat opt_f = optarg; 32972eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat break; 330dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case 'h': 331dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project opt_h = argto2(optarg, 1, "drive heads"); 332dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 333dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case 'i': 334dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project opt_i = argto2(optarg, 1, "info sector"); 335dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 336dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case 'k': 337dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project opt_k = argto2(optarg, 1, "backup sector"); 338dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 339dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case 'm': 340dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project opt_m = argto1(optarg, 0, "media descriptor"); 341dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project mflag = 1; 342dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 343dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case 'n': 344dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project opt_n = argto1(optarg, 1, "number of FATs"); 345dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 346dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case 'o': 347dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project opt_o = argto4(optarg, 0, "hidden sectors"); 348dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project oflag = 1; 349dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 350dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case 'r': 351dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project opt_r = argto2(optarg, 1, "reserved sectors"); 352dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 353dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case 's': 354dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project opt_s = argto4(optarg, 1, "file system size"); 355dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 356dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case 'u': 357dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project opt_u = argto2(optarg, 1, "sectors/track"); 358dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 359dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project default: 36072eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat usage(); 361dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 362dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project argc -= optind; 363dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project argv += optind; 364dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (argc < 1 || argc > 2) 36572eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat usage(); 366dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project fname = *argv++; 36772eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if (!opt_create && !strchr(fname, '/')) { 36872eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat snprintf(buf, sizeof(buf), "%s%s", _PATH_DEV, fname); 369dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (!(fname = strdup(buf))) 37072eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat err(1, NULL); 371dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 372dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project dtype = *argv; 37372eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if (opt_create) { 37472eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if (opt_N) 37572eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat errx(1, "create (-C) is incompatible with -N"); 37672eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat fd = open(fname, O_RDWR | O_CREAT | O_TRUNC, 0644); 37772eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if (fd == -1) 37872eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat errx(1, "failed to create %s", fname); 37972eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if (ftruncate(fd, opt_create)) 38072eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat errx(1, "failed to initialize %jd bytes", (intmax_t)opt_create); 38172eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat } else if ((fd = open(fname, opt_N ? O_RDONLY : O_RDWR)) == -1) 38272eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat err(1, "%s", fname); 38372eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if (fstat(fd, &sb)) 38472eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat err(1, "%s", fname); 38572eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if (opt_create) { 38672eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if (!S_ISREG(sb.st_mode)) 38772eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat warnx("warning, %s is not a regular file", fname); 38872eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat } else { 38972eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if (!S_ISCHR(sb.st_mode)) 39072eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat warnx("warning, %s is not a character device", fname); 39172eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat } 39272eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if (!opt_N) 39372eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat check_mounted(fname, sb.st_mode); 39472eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if (opt_ofs && opt_ofs != lseek(fd, opt_ofs, SEEK_SET)) 39572eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat errx(1, "cannot seek to %jd", (intmax_t)opt_ofs); 396dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project memset(&bpb, 0, sizeof(bpb)); 39772eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if (opt_f) { 39872eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat getstdfmt(opt_f, &bpb); 39972eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat bpb.bsec = bpb.sec; 40072eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat bpb.sec = 0; 40172eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat bpb.bspf = bpb.spf; 40272eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat bpb.spf = 0; 40372eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat } 404dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (opt_h) 405dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project bpb.hds = opt_h; 406dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (opt_u) 407dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project bpb.spt = opt_u; 408dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (opt_S) 409dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project bpb.bps = opt_S; 410dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (opt_s) 411dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project bpb.bsec = opt_s; 412dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (oflag) 413dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project bpb.hid = opt_o; 41472eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if (!(opt_f || (opt_h && opt_u && opt_S && opt_s && oflag))) { 41572eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat off_t delta; 41672eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat getdiskinfo(fd, fname, dtype, oflag, &bpb); 417661aff600c5cb8e72aa2892a2a75ea6015bf1457San Mehat if (opt_s) { 418661aff600c5cb8e72aa2892a2a75ea6015bf1457San Mehat bpb.bsec = opt_s; 419661aff600c5cb8e72aa2892a2a75ea6015bf1457San Mehat } 42072eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat bpb.bsec -= (opt_ofs / bpb.bps); 42172eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat delta = bpb.bsec % bpb.spt; 42272eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if (delta != 0) { 423661aff600c5cb8e72aa2892a2a75ea6015bf1457San Mehat warnx("trim %d sectors from %d to adjust to a multiple of %d", 424661aff600c5cb8e72aa2892a2a75ea6015bf1457San Mehat (int)delta, bpb.bsec, bpb.spt); 42572eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat bpb.bsec -= delta; 42672eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat } 42772eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if (bpb.spc == 0) { /* set defaults */ 42872eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if (bpb.bsec <= 6000) /* about 3MB -> 512 bytes */ 42972eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat bpb.spc = 1; 43072eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat else if (bpb.bsec <= (1<<17)) /* 64M -> 4k */ 43172eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat bpb.spc = 8; 43272eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat else if (bpb.bsec <= (1<<19)) /* 256M -> 8k */ 43372eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat bpb.spc = 16; 434ec3b164524fda0beb30354627f3e3f9d0c45126aKen Sumrall else if (bpb.bsec <= (1<<22)) /* 2G -> 16k, some versions of windows 435ec3b164524fda0beb30354627f3e3f9d0c45126aKen Sumrall require a minimum of 65527 clusters */ 43672eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat bpb.spc = 32; 43772eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat else 43872eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat bpb.spc = 64; /* otherwise 32k */ 439dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 440dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 441dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (!powerof2(bpb.bps)) 44272eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat errx(1, "bytes/sector (%u) is not a power of 2", bpb.bps); 443dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (bpb.bps < MINBPS) 44472eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat errx(1, "bytes/sector (%u) is too small; minimum is %u", 445dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project bpb.bps, MINBPS); 446dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (!(fat = opt_F)) { 44772eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if (opt_f) 44872eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat fat = 12; 44972eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat else if (!opt_e && (opt_i || opt_k)) 450dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project fat = 32; 451dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 452dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if ((fat == 32 && opt_e) || (fat != 32 && (opt_i || opt_k))) 45372eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat errx(1, "-%c is not a legal FAT%s option", 454dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project fat == 32 ? 'e' : opt_i ? 'i' : 'k', 455dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project fat == 32 ? "32" : "12/16"); 45672eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if (opt_f && fat == 32) 457dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project bpb.rde = 0; 458dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (opt_b) { 459dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (!powerof2(opt_b)) 46072eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat errx(1, "block size (%u) is not a power of 2", opt_b); 461dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (opt_b < bpb.bps) 46272eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat errx(1, "block size (%u) is too small; minimum is %u", 463dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project opt_b, bpb.bps); 464dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (opt_b > bpb.bps * MAXSPC) 46572eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat errx(1, "block size (%u) is too large; maximum is %u", 466dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project opt_b, bpb.bps * MAXSPC); 467dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project bpb.spc = opt_b / bpb.bps; 468dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 469dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (opt_c) { 470dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (!powerof2(opt_c)) 47172eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat errx(1, "sectors/cluster (%u) is not a power of 2", opt_c); 472dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project bpb.spc = opt_c; 473dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 474dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (opt_r) 475dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project bpb.res = opt_r; 476dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (opt_n) { 477dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (opt_n > MAXNFT) 47872eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat errx(1, "number of FATs (%u) is too large; maximum is %u", 479dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project opt_n, MAXNFT); 480dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project bpb.nft = opt_n; 481dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 482dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (opt_e) 483dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project bpb.rde = opt_e; 484dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (mflag) { 485dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (opt_m < 0xf0) 48672eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat errx(1, "illegal media descriptor (%#x)", opt_m); 487dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project bpb.mid = opt_m; 488dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 489dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (opt_a) 490dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project bpb.bspf = opt_a; 491dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (opt_i) 492dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project bpb.infs = opt_i; 493dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (opt_k) 494dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project bpb.bkbs = opt_k; 495dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project bss = 1; 496dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project bname = NULL; 497dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project fd1 = -1; 498dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (opt_B) { 499dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project bname = opt_B; 500dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (!strchr(bname, '/')) { 501dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project snprintf(buf, sizeof(buf), "/boot/%s", bname); 502dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (!(bname = strdup(buf))) 50372eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat err(1, NULL); 504dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 505dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if ((fd1 = open(bname, O_RDONLY)) == -1 || fstat(fd1, &sb)) 50672eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat err(1, "%s", bname); 507dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (!S_ISREG(sb.st_mode) || sb.st_size % bpb.bps || 508dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project sb.st_size < bpb.bps || sb.st_size > bpb.bps * MAXU16) 50972eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat errx(1, "%s: inappropriate file type or format", bname); 510dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project bss = sb.st_size / bpb.bps; 511dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 512dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (!bpb.nft) 513dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project bpb.nft = 2; 514dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (!fat) { 515dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (bpb.bsec < (bpb.res ? bpb.res : bss) + 516dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project howmany((RESFTE + (bpb.spc ? MINCLS16 : MAXCLS12 + 1)) * 517dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project ((bpb.spc ? 16 : 12) / BPN), bpb.bps * NPB) * 518dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project bpb.nft + 519dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project howmany(bpb.rde ? bpb.rde : DEFRDE, 52072eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat bpb.bps / sizeof(struct de)) + 521dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project (bpb.spc ? MINCLS16 : MAXCLS12 + 1) * 522dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project (bpb.spc ? bpb.spc : howmany(DEFBLK, bpb.bps))) 523dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project fat = 12; 524dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project else if (bpb.rde || bpb.bsec < 525dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project (bpb.res ? bpb.res : bss) + 526dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project howmany((RESFTE + MAXCLS16) * 2, bpb.bps) * bpb.nft + 52772eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat howmany(DEFRDE, bpb.bps / sizeof(struct de)) + 528dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project (MAXCLS16 + 1) * 529dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project (bpb.spc ? bpb.spc : howmany(8192, bpb.bps))) 530dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project fat = 16; 531dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project else 532dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project fat = 32; 533dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 534dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project x = bss; 535dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (fat == 32) { 536dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (!bpb.infs) { 537dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (x == MAXU16 || x == bpb.bkbs) 53872eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat errx(1, "no room for info sector"); 539dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project bpb.infs = x; 540dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 541dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (bpb.infs != MAXU16 && x <= bpb.infs) 542dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project x = bpb.infs + 1; 543dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (!bpb.bkbs) { 544dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (x == MAXU16) 54572eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat errx(1, "no room for backup sector"); 546dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project bpb.bkbs = x; 547dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } else if (bpb.bkbs != MAXU16 && bpb.bkbs == bpb.infs) 54872eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat errx(1, "backup sector would overwrite info sector"); 549dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (bpb.bkbs != MAXU16 && x <= bpb.bkbs) 550dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project x = bpb.bkbs + 1; 551dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 552dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (!bpb.res) 553dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project bpb.res = fat == 32 ? MAX(x, MAX(16384 / bpb.bps, 4)) : x; 554dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project else if (bpb.res < x) 55572eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat errx(1, "too few reserved sectors"); 556dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (fat != 32 && !bpb.rde) 557dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project bpb.rde = DEFRDE; 55872eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat rds = howmany(bpb.rde, bpb.bps / sizeof(struct de)); 559dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (!bpb.spc) 560dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project for (bpb.spc = howmany(fat == 16 ? DEFBLK16 : DEFBLK, bpb.bps); 561dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project bpb.spc < MAXSPC && 562dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project bpb.res + 563dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project howmany((RESFTE + maxcls(fat)) * (fat / BPN), 564dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project bpb.bps * NPB) * bpb.nft + 565dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project rds + 566dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project (u_int64_t)(maxcls(fat) + 1) * bpb.spc <= bpb.bsec; 567dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project bpb.spc <<= 1); 568dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (fat != 32 && bpb.bspf > MAXU16) 56972eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat errx(1, "too many sectors/FAT for FAT12/16"); 570dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project x1 = bpb.res + rds; 571dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project x = bpb.bspf ? bpb.bspf : 1; 572dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (x1 + (u_int64_t)x * bpb.nft > bpb.bsec) 57372eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat errx(1, "meta data exceeds file system size"); 574dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project x1 += x * bpb.nft; 575dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project x = (u_int64_t)(bpb.bsec - x1) * bpb.bps * NPB / 576dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project (bpb.spc * bpb.bps * NPB + fat / BPN * bpb.nft); 577dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project x2 = howmany((RESFTE + MIN(x, maxcls(fat))) * (fat / BPN), 578dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project bpb.bps * NPB); 579dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (!bpb.bspf) { 580dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project bpb.bspf = x2; 581dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project x1 += (bpb.bspf - 1) * bpb.nft; 582dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 583dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project cls = (bpb.bsec - x1) / bpb.spc; 584dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project x = (u_int64_t)bpb.bspf * bpb.bps * NPB / (fat / BPN) - RESFTE; 585dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (cls > x) 586dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project cls = x; 587dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (bpb.bspf < x2) 58872eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat warnx("warning: sectors/FAT limits file system to %u clusters", 589dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project cls); 590dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (cls < mincls(fat)) 59172eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat errx(1, "%u clusters too few clusters for FAT%u, need %u", cls, fat, 592dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project mincls(fat)); 593dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (cls > maxcls(fat)) { 594dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project cls = maxcls(fat); 595dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project bpb.bsec = x1 + (cls + 1) * bpb.spc - 1; 59672eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat warnx("warning: FAT type limits file system to %u sectors", 597dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project bpb.bsec); 598dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 599dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project printf("%s: %u sector%s in %u FAT%u cluster%s " 600dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project "(%u bytes/cluster)\n", fname, cls * bpb.spc, 601dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project cls * bpb.spc == 1 ? "" : "s", cls, fat, 602dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project cls == 1 ? "" : "s", bpb.bps * bpb.spc); 603dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (!bpb.mid) 604dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project bpb.mid = !bpb.hid ? 0xf0 : 0xf8; 605dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (fat == 32) 606dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project bpb.rdcl = RESFTE; 607dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (bpb.hid + bpb.bsec <= MAXU16) { 608dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project bpb.sec = bpb.bsec; 609dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project bpb.bsec = 0; 610dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 611dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (fat != 32) { 612dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project bpb.spf = bpb.bspf; 613dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project bpb.bspf = 0; 614dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 615dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project print_bpb(&bpb); 616dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (!opt_N) { 617dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project gettimeofday(&tv, NULL); 618dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project now = tv.tv_sec; 619dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project tm = localtime(&now); 620dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (!(img = malloc(bpb.bps))) 62172eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat err(1, NULL); 622dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project dir = bpb.res + (bpb.spf ? bpb.spf : bpb.bspf) * bpb.nft; 623dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project for (lsn = 0; lsn < dir + (fat == 32 ? bpb.spc : rds); lsn++) { 624dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project x = lsn; 625dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (opt_B && 626dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project fat == 32 && bpb.bkbs != MAXU16 && 627dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project bss <= bpb.bkbs && x >= bpb.bkbs) { 628dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project x -= bpb.bkbs; 62972eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if (!x && lseek(fd1, opt_ofs, SEEK_SET)) 63072eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat err(1, "%s", bname); 631dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 632dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (opt_B && x < bss) { 633dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if ((n = read(fd1, img, bpb.bps)) == -1) 63472eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat err(1, "%s", bname); 63572eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if ((unsigned)n != bpb.bps) 63672eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat errx(1, "%s: can't read sector %u", bname, x); 637dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } else 638dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project memset(img, 0, bpb.bps); 639dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (!lsn || 640dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project (fat == 32 && bpb.bkbs != MAXU16 && lsn == bpb.bkbs)) { 64172eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat x1 = sizeof(struct bs); 642dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project bsbpb = (struct bsbpb *)(img + x1); 643dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project mk2(bsbpb->bps, bpb.bps); 644dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project mk1(bsbpb->spc, bpb.spc); 645dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project mk2(bsbpb->res, bpb.res); 646dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project mk1(bsbpb->nft, bpb.nft); 647dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project mk2(bsbpb->rde, bpb.rde); 648dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project mk2(bsbpb->sec, bpb.sec); 649dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project mk1(bsbpb->mid, bpb.mid); 650dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project mk2(bsbpb->spf, bpb.spf); 651dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project mk2(bsbpb->spt, bpb.spt); 652dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project mk2(bsbpb->hds, bpb.hds); 653dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project mk4(bsbpb->hid, bpb.hid); 654dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project mk4(bsbpb->bsec, bpb.bsec); 65572eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat x1 += sizeof(struct bsbpb); 656dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (fat == 32) { 657dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project bsxbpb = (struct bsxbpb *)(img + x1); 658dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project mk4(bsxbpb->bspf, bpb.bspf); 659dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project mk2(bsxbpb->xflg, 0); 660dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project mk2(bsxbpb->vers, 0); 661dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project mk4(bsxbpb->rdcl, bpb.rdcl); 662dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project mk2(bsxbpb->infs, bpb.infs); 663dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project mk2(bsxbpb->bkbs, bpb.bkbs); 66472eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat x1 += sizeof(struct bsxbpb); 665dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 666dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project bsx = (struct bsx *)(img + x1); 667dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project mk1(bsx->sig, 0x29); 668dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (Iflag) 669dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project x = opt_I; 670dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project else 671dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project x = (((u_int)(1 + tm->tm_mon) << 8 | 672dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project (u_int)tm->tm_mday) + 673dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project ((u_int)tm->tm_sec << 8 | 674dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project (u_int)(tv.tv_usec / 10))) << 16 | 675dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project ((u_int)(1900 + tm->tm_year) + 676dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project ((u_int)tm->tm_hour << 8 | 677dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project (u_int)tm->tm_min)); 678dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project mk4(bsx->volid, x); 67972eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat mklabel(bsx->label, opt_L ? opt_L : "NO NAME"); 68072eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat sprintf(buf, "FAT%u", fat); 681dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project setstr(bsx->type, buf, sizeof(bsx->type)); 682dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (!opt_B) { 68372eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat x1 += sizeof(struct bsx); 684dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project bs = (struct bs *)img; 685dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project mk1(bs->jmp[0], 0xeb); 686dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project mk1(bs->jmp[1], x1 - 2); 687dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project mk1(bs->jmp[2], 0x90); 68872eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat setstr(bs->oem, opt_O ? opt_O : "BSD 4.4", 689dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project sizeof(bs->oem)); 690dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project memcpy(img + x1, bootcode, sizeof(bootcode)); 69172eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat mk2(img + MINBPS - 2, DOSMAGIC); 692dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 693dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } else if (fat == 32 && bpb.infs != MAXU16 && 694dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project (lsn == bpb.infs || 695dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project (bpb.bkbs != MAXU16 && 696dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project lsn == bpb.bkbs + bpb.infs))) { 697dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project mk4(img, 0x41615252); 69872eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat mk4(img + MINBPS - 28, 0x61417272); 69972eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat mk4(img + MINBPS - 24, 0xffffffff); 70072eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat mk4(img + MINBPS - 20, bpb.rdcl); 70172eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat mk2(img + MINBPS - 2, DOSMAGIC); 702dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } else if (lsn >= bpb.res && lsn < dir && 703dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project !((lsn - bpb.res) % 704dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project (bpb.spf ? bpb.spf : bpb.bspf))) { 705dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project mk1(img[0], bpb.mid); 706dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project for (x = 1; x < fat * (fat == 32 ? 3 : 2) / 8; x++) 707dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project mk1(img[x], fat == 32 && x % 4 == 3 ? 0x0f : 0xff); 708dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } else if (lsn == dir && opt_L) { 709dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project de = (struct de *)img; 710dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project mklabel(de->namext, opt_L); 711dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project mk1(de->attr, 050); 712dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project x = (u_int)tm->tm_hour << 11 | 713dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project (u_int)tm->tm_min << 5 | 714dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project (u_int)tm->tm_sec >> 1; 715dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project mk2(de->time, x); 716dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project x = (u_int)(tm->tm_year - 80) << 9 | 717dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project (u_int)(tm->tm_mon + 1) << 5 | 718dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project (u_int)tm->tm_mday; 719dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project mk2(de->date, x); 720dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 721dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if ((n = write(fd, img, bpb.bps)) == -1) 72272eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat err(1, "%s", fname); 723eab453c612d6d422f863c31da67f00bc4beec914San Mehat if ((unsigned)n != bpb.bps) { 72472eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat errx(1, "%s: can't write sector %u", fname, lsn); 725eab453c612d6d422f863c31da67f00bc4beec914San Mehat exit(1); 726eab453c612d6d422f863c31da67f00bc4beec914San Mehat } 727dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 728dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 729dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return 0; 730dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 731dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 732dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 73372eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat * Exit with error if file system is mounted. 73472eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat */ 73572eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehatstatic void 73672eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehatcheck_mounted(const char *fname, mode_t mode) 73772eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat{ 73872eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat struct statfs *mp; 73972eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat const char *s1, *s2; 74072eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat size_t len; 74172eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat int n, r; 74272eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat 74372eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat#ifdef ANDROID 74472eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat warnx("Skipping mount checks"); 74572eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat#else 74672eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if (!(n = getmntinfo(&mp, MNT_NOWAIT))) 74772eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat err(1, "getmntinfo"); 74872eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat len = strlen(_PATH_DEV); 74972eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat s1 = fname; 75072eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if (!strncmp(s1, _PATH_DEV, len)) 75172eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat s1 += len; 75272eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat r = S_ISCHR(mode) && s1 != fname && *s1 == 'r'; 75372eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat for (; n--; mp++) { 75472eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat s2 = mp->f_mntfromname; 75572eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if (!strncmp(s2, _PATH_DEV, len)) 75672eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat s2 += len; 75772eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if ((r && s2 != mp->f_mntfromname && !strcmp(s1 + 1, s2)) || 75872eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat !strcmp(s1, s2)) 75972eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat errx(1, "%s is mounted on %s", fname, mp->f_mntonname); 76072eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat } 76172eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat#endif 76272eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat} 76372eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat 76472eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat/* 76572eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat * Get a standard format. 76672eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat */ 76772eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehatstatic void 76872eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehatgetstdfmt(const char *fmt, struct bpb *bpb) 76972eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat{ 77072eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat u_int x, i; 77172eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat 77272eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat x = sizeof(stdfmt) / sizeof(stdfmt[0]); 77372eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat for (i = 0; i < x && strcmp(fmt, stdfmt[i].name); i++); 77472eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if (i == x) 77572eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat errx(1, "%s: unknown standard format", fmt); 77672eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat *bpb = stdfmt[i].bpb; 77772eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat} 77872eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat 77972eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat/* 78072eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat * Get disk slice, partition, and geometry information. 78172eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat */ 78272eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat 78372eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat#ifdef ANDROID 78472eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehatstatic void 78572eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehatgetdiskinfo(int fd, const char *fname, const char *dtype, __unused int oflag, 78672eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat struct bpb *bpb) 78772eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat{ 78872eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat struct hd_geometry geom; 78972eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat 79072eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if (ioctl(fd, BLKSSZGET, &bpb->bps)) { 791ff3bcd03079d9e0e94f70955370f3eb940d6244aSan Mehat fprintf(stderr, "Error getting bytes / sector (%s)\n", strerror(errno)); 79272eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat exit(1); 79372eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat } 79472eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat 79572eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat ckgeom(fname, bpb->bps, "bytes/sector"); 79672eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat 79772eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if (ioctl(fd, BLKGETSIZE, &bpb->bsec)) { 798ff3bcd03079d9e0e94f70955370f3eb940d6244aSan Mehat fprintf(stderr, "Error getting blocksize (%s)\n", strerror(errno)); 79972eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat exit(1); 80072eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat } 80172eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat 80272eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if (ioctl(fd, HDIO_GETGEO, &geom)) { 803ff3bcd03079d9e0e94f70955370f3eb940d6244aSan Mehat fprintf(stderr, "Error getting gemoetry (%s) - trying sane values\n", strerror(errno)); 804ff3bcd03079d9e0e94f70955370f3eb940d6244aSan Mehat geom.heads = 64; 805ff3bcd03079d9e0e94f70955370f3eb940d6244aSan Mehat geom.sectors = 63; 80672eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat } 80772eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat 808eab453c612d6d422f863c31da67f00bc4beec914San Mehat if (!geom.heads) { 809eab453c612d6d422f863c31da67f00bc4beec914San Mehat printf("Bogus heads from kernel - setting sane value\n"); 810eab453c612d6d422f863c31da67f00bc4beec914San Mehat geom.heads = 64; 811eab453c612d6d422f863c31da67f00bc4beec914San Mehat } 812eab453c612d6d422f863c31da67f00bc4beec914San Mehat 813eab453c612d6d422f863c31da67f00bc4beec914San Mehat if (!geom.sectors) { 814eab453c612d6d422f863c31da67f00bc4beec914San Mehat printf("Bogus sectors from kernel - setting sane value\n"); 815eab453c612d6d422f863c31da67f00bc4beec914San Mehat geom.sectors = 63; 816eab453c612d6d422f863c31da67f00bc4beec914San Mehat } 817eab453c612d6d422f863c31da67f00bc4beec914San Mehat 81872eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat bpb->spt = geom.sectors; 81972eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat ckgeom(fname, bpb->spt, "sectors/track"); 82072eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat 82172eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat bpb->hds = geom.heads; 82272eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat ckgeom(fname, bpb->hds, "drive heads"); 82372eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat} 82472eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat 82572eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat#else 82672eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat 82772eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehatstatic void 82872eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehatgetdiskinfo(int fd, const char *fname, const char *dtype, __unused int oflag, 82972eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat struct bpb *bpb) 83072eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat{ 83172eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat struct disklabel *lp, dlp; 83272eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat struct fd_type type; 83372eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat off_t ms, hs = 0; 83472eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat 83572eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat lp = NULL; 83672eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat 83772eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat /* If the user specified a disk type, try to use that */ 83872eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if (dtype != NULL) { 83972eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat lp = getdiskbyname(dtype); 84072eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat } 84172eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat 84272eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat /* Maybe it's a floppy drive */ 84372eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if (lp == NULL) { 84472eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if (ioctl(fd, DIOCGMEDIASIZE, &ms) == -1) { 84572eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat struct stat st; 84672eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat 84772eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if (fstat(fd, &st)) 84872eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat err(1, "Cannot get disk size"); 84972eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat /* create a fake geometry for a file image */ 85072eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat ms = st.st_size; 85172eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat dlp.d_secsize = 512; 85272eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat dlp.d_nsectors = 63; 85372eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat dlp.d_ntracks = 255; 85472eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat dlp.d_secperunit = ms / dlp.d_secsize; 85572eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat lp = &dlp; 85672eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat } else if (ioctl(fd, FD_GTYPE, &type) != -1) { 85772eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat dlp.d_secsize = 128 << type.secsize; 85872eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat dlp.d_nsectors = type.sectrac; 85972eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat dlp.d_ntracks = type.heads; 86072eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat dlp.d_secperunit = ms / dlp.d_secsize; 86172eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat lp = &dlp; 86272eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat } 86372eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat } 86472eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat 86572eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat /* Maybe it's a fixed drive */ 86672eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if (lp == NULL) { 86772eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if (ioctl(fd, DIOCGDINFO, &dlp) == -1) { 86872eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if (bpb->bps == 0 && ioctl(fd, DIOCGSECTORSIZE, &dlp.d_secsize) == -1) 86972eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat errx(1, "Cannot get sector size, %s", strerror(errno)); 87072eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat 87172eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat /* XXX Should we use bpb->bps if it's set? */ 87272eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat dlp.d_secperunit = ms / dlp.d_secsize; 87372eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat 87472eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if (bpb->spt == 0 && ioctl(fd, DIOCGFWSECTORS, &dlp.d_nsectors) == -1) { 87572eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat warnx("Cannot get number of sectors per track, %s", strerror(errno)); 87672eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat dlp.d_nsectors = 63; 87772eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat } 87872eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if (bpb->hds == 0 && ioctl(fd, DIOCGFWHEADS, &dlp.d_ntracks) == -1) { 87972eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat warnx("Cannot get number of heads, %s", strerror(errno)); 88072eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if (dlp.d_secperunit <= 63*1*1024) 88172eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat dlp.d_ntracks = 1; 88272eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat else if (dlp.d_secperunit <= 63*16*1024) 88372eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat dlp.d_ntracks = 16; 88472eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat else 88572eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat dlp.d_ntracks = 255; 88672eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat } 88772eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat } 88872eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat 88972eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat hs = (ms / dlp.d_secsize) - dlp.d_secperunit; 89072eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat lp = &dlp; 89172eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat } 89272eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat 89372eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if (bpb->bps == 0) 89472eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat bpb->bps = ckgeom(fname, lp->d_secsize, "bytes/sector"); 89572eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if (bpb->spt == 0) 89672eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat bpb->spt = ckgeom(fname, lp->d_nsectors, "sectors/track"); 89772eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if (bpb->hds == 0) 89872eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat bpb->hds = ckgeom(fname, lp->d_ntracks, "drive heads"); 89972eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if (bpb->bsec == 0) 90072eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat bpb->bsec = lp->d_secperunit; 90172eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if (bpb->hid == 0) 90272eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat bpb->hid = hs; 90372eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat} 90472eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat#endif 90572eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat 90672eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat/* 907dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Print out BPB values. 908dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 909dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstatic void 910dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectprint_bpb(struct bpb *bpb) 911dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 912dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project printf("bps=%u spc=%u res=%u nft=%u", bpb->bps, bpb->spc, bpb->res, 913dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project bpb->nft); 914dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (bpb->rde) 915dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project printf(" rde=%u", bpb->rde); 916dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (bpb->sec) 917dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project printf(" sec=%u", bpb->sec); 918dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project printf(" mid=%#x", bpb->mid); 919dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (bpb->spf) 920dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project printf(" spf=%u", bpb->spf); 921dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project printf(" spt=%u hds=%u hid=%u", bpb->spt, bpb->hds, bpb->hid); 922dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (bpb->bsec) 923dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project printf(" bsec=%u", bpb->bsec); 924dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (!bpb->spf) { 925dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project printf(" bspf=%u rdcl=%u", bpb->bspf, bpb->rdcl); 926dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project printf(" infs="); 927dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project printf(bpb->infs == MAXU16 ? "%#x" : "%u", bpb->infs); 928dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project printf(" bkbs="); 929dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project printf(bpb->bkbs == MAXU16 ? "%#x" : "%u", bpb->bkbs); 930dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 931dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project printf("\n"); 932dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 933dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 934dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 935dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Check a disk geometry value. 936dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 937dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstatic u_int 938dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectckgeom(const char *fname, u_int val, const char *msg) 939dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 940dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (!val) 94172eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat errx(1, "%s: no default %s", fname, msg); 942dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (val > MAXU16) 94372eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat errx(1, "%s: illegal %s %d", fname, msg, val); 944dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return val; 945dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 946dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 947dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 948dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Convert and check a numeric option argument. 949dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 950dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstatic u_int 951dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectargtou(const char *arg, u_int lo, u_int hi, const char *msg) 952dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 953dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project char *s; 954dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project u_long x; 955dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 956dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project errno = 0; 957dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project x = strtoul(arg, &s, 0); 958dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (errno || !*arg || *s || x < lo || x > hi) 95972eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat errx(1, "%s: bad %s", arg, msg); 96072eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat return x; 96172eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat} 96272eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat 96372eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat/* 96472eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat * Same for off_t, with optional skmgpP suffix 96572eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat */ 96672eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehatstatic off_t 96772eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehatargtooff(const char *arg, const char *msg) 96872eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat{ 96972eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat char *s; 97072eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat off_t x; 97172eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat 97272eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat x = strtoll(arg, &s, 0); 97372eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat /* allow at most one extra char */ 97472eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if (errno || x < 0 || (s[0] && s[1]) ) 97572eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat errx(1, "%s: bad %s", arg, msg); 97672eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if (*s) { /* the extra char is the multiplier */ 97772eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat switch (*s) { 97872eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat default: 97972eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat errx(1, "%s: bad %s", arg, msg); 98072eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat /* notreached */ 98172eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat 98272eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat case 's': /* sector */ 98372eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat case 'S': 98472eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat x <<= 9; /* times 512 */ 98572eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat break; 98672eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat 98772eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat case 'k': /* kilobyte */ 98872eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat case 'K': 98972eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat x <<= 10; /* times 1024 */ 99072eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat break; 99172eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat 99272eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat case 'm': /* megabyte */ 99372eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat case 'M': 99472eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat x <<= 20; /* times 1024*1024 */ 99572eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat break; 99672eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat 99772eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat case 'g': /* gigabyte */ 99872eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat case 'G': 99972eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat x <<= 30; /* times 1024*1024*1024 */ 100072eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat break; 100172eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat 100272eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat case 'p': /* partition start */ 100372eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat case 'P': /* partition start */ 100472eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat case 'l': /* partition length */ 100572eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat case 'L': /* partition length */ 100672eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat errx(1, "%s: not supported yet %s", arg, msg); 100772eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat /* notreached */ 100872eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat } 100972eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat } 1010dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return x; 1011dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 1012dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 1013dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 1014dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Check a volume label. 1015dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 1016dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstatic int 1017dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectoklabel(const char *src) 1018dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 1019dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int c, i; 1020dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 1021dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project for (i = 0; i <= 11; i++) { 1022dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project c = (u_char)*src++; 1023dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (c < ' ' + !i || strchr("\"*+,./:;<=>?[\\]|", c)) 1024dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 1025dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 1026dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return i && !c; 1027dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 1028dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 1029dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 1030dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Make a volume label. 1031dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 1032dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstatic void 1033dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectmklabel(u_int8_t *dest, const char *src) 1034dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 1035dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int c, i; 1036dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 1037dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project for (i = 0; i < 11; i++) { 103872eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat c = *src ? toupper(*src++) : ' '; 1039dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project *dest++ = !i && c == '\xe5' ? 5 : c; 1040dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 1041dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 1042dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 1043dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 1044dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Copy string, padding with spaces. 1045dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 1046dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstatic void 1047dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectsetstr(u_int8_t *dest, const char *src, size_t len) 1048dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 1049dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project while (len--) 1050dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project *dest++ = *src ? *src++ : ' '; 1051dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 1052dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 1053dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 1054dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Print usage message. 1055dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 1056dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstatic void 105772eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehatusage(void) 1058dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 105972eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat fprintf(stderr, 106072eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat "usage: newfs_msdos [ -options ] special [disktype]\n" 106172eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat "where the options are:\n" 106272eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat "\t-@ create file system at specified offset\n" 106372eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat "\t-B get bootstrap from file\n" 106472eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat "\t-C create image file with specified size\n" 106572eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat "\t-F FAT type (12, 16, or 32)\n" 106672eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat "\t-I volume ID\n" 106772eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat "\t-L volume label\n" 106872eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat "\t-N don't create file system: just print out parameters\n" 106972eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat "\t-O OEM string\n" 107072eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat "\t-S bytes/sector\n" 107172eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat "\t-a sectors/FAT\n" 107272eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat "\t-b block size\n" 107372eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat "\t-c sectors/cluster\n" 107472eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat "\t-e root directory entries\n" 107572eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat "\t-f standard format\n" 107672eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat "\t-h drive heads\n" 107772eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat "\t-i file system info sector\n" 107872eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat "\t-k backup boot sector\n" 107972eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat "\t-m media descriptor\n" 108072eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat "\t-n number of FATs\n" 108172eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat "\t-o hidden sectors\n" 108272eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat "\t-r reserved sectors\n" 108372eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat "\t-s file system size (sectors)\n" 108472eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat "\t-u sectors/track\n"); 108572eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat exit(1); 1086dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 1087