newfs_msdos.c revision 052f27562154d175267999106bd6bf18fc8c363e
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[] = 3033e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg "$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 3633e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg#include <sys/fdcio.h> 3733e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg#include <sys/disk.h> 3833e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg#include <sys/disklabel.h> 3933e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg#include <sys/mount.h> 4072eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat#else 4133e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg#include <stdarg.h> 4233e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg#include <linux/fs.h> 4333e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg#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 6133e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg#define MAXU16 0xffff /* maximum unsigned 16-bit quantity */ 6233e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg#define BPN 4 /* bits per nibble */ 6333e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg#define NPB 2 /* nibbles per byte */ 6433e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg 6533e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg#define DOSMAGIC 0xaa55 /* DOS magic number */ 6633e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg#define MINBPS 512 /* minimum bytes per sector */ 6733e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg#define MAXSPC 128 /* maximum sectors per cluster */ 6833e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg#define MAXNFT 16 /* maximum number of FATs */ 6933e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg#define DEFBLK 4096 /* default block size */ 7033e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg#define DEFBLK16 2048 /* default block size FAT16 */ 7133e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg#define DEFRDE 512 /* default root directory entries */ 7233e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg#define RESFTE 2 /* reserved FAT entries */ 7333e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg#define MINCLS12 1 /* minimum FAT12 clusters */ 7433e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg#define MINCLS16 0x1000 /* minimum FAT16 clusters */ 7533e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg#define MINCLS32 2 /* minimum FAT32 clusters */ 7633e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg#define MAXCLS12 0xfed /* maximum FAT12 clusters */ 7733e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg#define MAXCLS16 0xfff5 /* maximum FAT16 clusters */ 7833e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg#define MAXCLS32 0xffffff5 /* maximum FAT32 clusters */ 7933e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg 8033e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg#define mincls(fat) ((fat) == 12 ? MINCLS12 : \ 8133e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg (fat) == 16 ? MINCLS16 : \ 8233e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg MINCLS32) 8333e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg 8433e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg#define maxcls(fat) ((fat) == 12 ? MAXCLS12 : \ 8533e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg (fat) == 16 ? MAXCLS16 : \ 8633e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg MAXCLS32) 8733e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg 8833e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg#define mk1(p, x) \ 89dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project (p) = (u_int8_t)(x) 90dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 9133e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg#define mk2(p, x) \ 9233e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg (p)[0] = (u_int8_t)(x), \ 93dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project (p)[1] = (u_int8_t)((x) >> 010) 94dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 9533e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg#define mk4(p, x) \ 9633e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg (p)[0] = (u_int8_t)(x), \ 9733e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg (p)[1] = (u_int8_t)((x) >> 010), \ 9833e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg (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 { 10733e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg u_int8_t jmp[3]; /* bootstrap entry point */ 10833e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg 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 { 11233e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg u_int8_t bps[2]; /* bytes per sector */ 11333e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg u_int8_t spc; /* sectors per cluster */ 11433e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg u_int8_t res[2]; /* reserved sectors */ 11533e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg u_int8_t nft; /* number of FATs */ 11633e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg u_int8_t rde[2]; /* root directory entries */ 11733e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg u_int8_t sec[2]; /* total sectors */ 11833e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg u_int8_t mid; /* media descriptor */ 11933e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg u_int8_t spf[2]; /* sectors per FAT */ 12033e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg u_int8_t spt[2]; /* sectors per track */ 12133e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg u_int8_t hds[2]; /* drive heads */ 12233e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg u_int8_t hid[4]; /* hidden sectors */ 12333e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg u_int8_t bsec[4]; /* big total sectors */ 124dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project}; 125dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 126dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstruct bsxbpb { 12733e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg u_int8_t bspf[4]; /* big sectors per FAT */ 12833e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg u_int8_t xflg[2]; /* FAT control flags */ 12933e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg u_int8_t vers[2]; /* file system version */ 13033e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg u_int8_t rdcl[4]; /* root directory start cluster */ 13133e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg u_int8_t infs[2]; /* file system info sector */ 13233e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg u_int8_t bkbs[2]; /* backup boot sector */ 13333e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg u_int8_t rsvd[12]; /* reserved */ 134dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project}; 135dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 136dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstruct bsx { 13733e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg u_int8_t drv; /* drive number */ 13833e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg u_int8_t rsvd; /* reserved */ 13933e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg u_int8_t sig; /* extended boot signature */ 14033e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg u_int8_t volid[4]; /* volume ID number */ 14133e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg u_int8_t label[11]; /* volume label */ 14233e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg u_int8_t type[8]; /* file system type */ 143dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project}; 144dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 145dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstruct de { 14633e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg u_int8_t namext[11]; /* name and extension */ 14733e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg u_int8_t attr; /* attributes */ 14833e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg u_int8_t rsvd[10]; /* reserved */ 14933e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg u_int8_t time[2]; /* creation time */ 15033e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg u_int8_t date[2]; /* creation date */ 15133e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg u_int8_t clus[2]; /* starting cluster */ 15233e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg u_int8_t size[4]; /* size */ 153dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project}; 154dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 155dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstruct bpb { 15633e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg u_int bps; /* bytes per sector */ 15733e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg u_int spc; /* sectors per cluster */ 15833e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg u_int res; /* reserved sectors */ 15933e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg u_int nft; /* number of FATs */ 16033e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg u_int rde; /* root directory entries */ 16133e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg u_int sec; /* total sectors */ 16233e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg u_int mid; /* media descriptor */ 16333e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg u_int spf; /* sectors per FAT */ 16433e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg u_int spt; /* sectors per track */ 16533e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg u_int hds; /* drive heads */ 16633e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg u_int hid; /* hidden sectors */ 16733e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg u_int bsec; /* big total sectors */ 16833e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg u_int bspf; /* big sectors per FAT */ 16933e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg u_int rdcl; /* root directory start cluster */ 17033e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg u_int infs; /* file system info sector */ 17133e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg 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}}, 18433e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg {"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}}, 18733e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg {"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[] = { 19333e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg 0xfa, /* cli */ 19433e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg 0x31, 0xc0, /* xor ax,ax */ 19533e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg 0x8e, 0xd0, /* mov ss,ax */ 19633e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg 0xbc, 0x00, 0x7c, /* mov sp,7c00h */ 19733e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg 0xfb, /* sti */ 19833e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg 0x8e, 0xd8, /* mov ds,ax */ 19933e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg 0xe8, 0x00, 0x00, /* call $ + 3 */ 20033e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg 0x5e, /* pop si */ 20133e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg 0x83, 0xc6, 0x19, /* add si,+19h */ 20233e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg 0xbb, 0x07, 0x00, /* mov bx,0007h */ 20333e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg 0xfc, /* cld */ 20433e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg 0xac, /* lodsb */ 20533e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg 0x84, 0xc0, /* test al,al */ 20633e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg 0x74, 0x06, /* jz $ + 8 */ 20733e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg 0xb4, 0x0e, /* mov ah,0eh */ 20833e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg 0xcd, 0x10, /* int 10h */ 20933e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg 0xeb, 0xf5, /* jmp $ - 9 */ 21033e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg 0x30, 0xe4, /* xor ah,ah */ 21133e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg 0xcd, 0x16, /* int 16h */ 21233e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg 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 *); 22633e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenbergstatic void getdiskinfo(int, const char *, const char *, int, struct bpb *); 227dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstatic void print_bpb(struct bpb *); 228dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstatic u_int ckgeom(const char *, u_int, const char *); 229dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstatic u_int argtou(const char *, u_int, u_int, const char *); 23072eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehatstatic off_t argtooff(const char *, const char *); 231dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstatic int oklabel(const char *); 232dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstatic void mklabel(u_int8_t *, const char *); 233dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstatic void setstr(u_int8_t *, const char *, size_t); 23472eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehatstatic void usage(void); 23572eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat 236dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 237dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Construct a FAT12, FAT16, or FAT32 file system. 238dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 23933e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenbergint newfs_msdos_main(int argc, char *argv[]) 240dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 241052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg static const char opts[] = "@:NAB:C:F:I:L:O:S:a:b:c:e:f:h:i:k:m:n:o:r:s:u:"; 24272eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat const char *opt_B = NULL, *opt_L = NULL, *opt_O = NULL, *opt_f = NULL; 24372eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat u_int opt_F = 0, opt_I = 0, opt_S = 0, opt_a = 0, opt_b = 0, opt_c = 0; 24472eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat u_int opt_e = 0, opt_h = 0, opt_i = 0, opt_k = 0, opt_m = 0, opt_n = 0; 24572eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat u_int opt_o = 0, opt_r = 0, opt_s = 0, opt_u = 0; 246052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg u_int opt_A = 0; 24772eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat int opt_N = 0; 24872eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat int Iflag = 0, mflag = 0, oflag = 0; 249dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project char buf[MAXPATHLEN]; 250dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project struct stat sb; 251dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project struct timeval tv; 252dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project struct bpb bpb; 253dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project struct tm *tm; 254dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project struct bs *bs; 255dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project struct bsbpb *bsbpb; 256dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project struct bsxbpb *bsxbpb; 257dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project struct bsx *bsx; 258dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project struct de *de; 259dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project u_int8_t *img; 260dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project const char *fname, *dtype, *bname; 261dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project ssize_t n; 262dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project time_t now; 263dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project u_int fat, bss, rds, cls, dir, lsn, x, x1, x2; 264052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg u_int extra_res, alignment=0, set_res, set_spf, set_spc, tempx, attempts=0; 265dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int ch, fd, fd1; 26672eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat off_t opt_create = 0, opt_ofs = 0; 267dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 268dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project while ((ch = getopt(argc, argv, opts)) != -1) 26933e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg switch (ch) { 27033e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg case '@': 27133e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg opt_ofs = argtooff(optarg, "offset"); 27233e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg break; 27333e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg case 'N': 27433e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg opt_N = 1; 27533e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg break; 276052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg case 'A': 277052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg opt_A = 1; 278052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg break; 27933e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg case 'B': 28033e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg opt_B = optarg; 28133e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg break; 28233e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg case 'C': 28333e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg opt_create = argtooff(optarg, "create size"); 28433e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg break; 28533e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg case 'F': 28633e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg if (strcmp(optarg, "12") && strcmp(optarg, "16") && strcmp(optarg, "32")) 28733e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg errx(1, "%s: bad FAT type", optarg); 28833e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg opt_F = atoi(optarg); 28933e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg break; 29033e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg case 'I': 29133e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg opt_I = argto4(optarg, 0, "volume ID"); 29233e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg Iflag = 1; 29333e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg break; 29433e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg case 'L': 29533e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg if (!oklabel(optarg)) 29633e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg errx(1, "%s: bad volume label", optarg); 29733e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg opt_L = optarg; 29833e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg break; 29933e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg case 'O': 30033e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg if (strlen(optarg) > 8) 30133e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg errx(1, "%s: bad OEM string", optarg); 30233e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg opt_O = optarg; 30333e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg break; 30433e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg case 'S': 30533e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg opt_S = argto2(optarg, 1, "bytes/sector"); 30633e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg break; 30733e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg case 'a': 30833e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg opt_a = argto4(optarg, 1, "sectors/FAT"); 30933e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg break; 31033e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg case 'b': 31133e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg opt_b = argtox(optarg, 1, "block size"); 31233e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg opt_c = 0; 31333e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg break; 31433e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg case 'c': 31533e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg opt_c = argto1(optarg, 1, "sectors/cluster"); 31633e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg opt_b = 0; 31733e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg break; 31833e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg case 'e': 31933e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg opt_e = argto2(optarg, 1, "directory entries"); 32033e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg break; 32133e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg case 'f': 32233e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg opt_f = optarg; 32333e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg break; 32433e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg case 'h': 32533e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg opt_h = argto2(optarg, 1, "drive heads"); 32633e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg break; 32733e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg case 'i': 32833e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg opt_i = argto2(optarg, 1, "info sector"); 32933e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg break; 33033e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg case 'k': 33133e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg opt_k = argto2(optarg, 1, "backup sector"); 33233e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg break; 33333e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg case 'm': 33433e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg opt_m = argto1(optarg, 0, "media descriptor"); 33533e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg mflag = 1; 33633e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg break; 33733e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg case 'n': 33833e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg opt_n = argto1(optarg, 1, "number of FATs"); 33933e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg break; 34033e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg case 'o': 34133e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg opt_o = argto4(optarg, 0, "hidden sectors"); 34233e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg oflag = 1; 34333e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg break; 34433e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg case 'r': 34533e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg opt_r = argto2(optarg, 1, "reserved sectors"); 34633e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg break; 34733e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg case 's': 34833e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg opt_s = argto4(optarg, 1, "file system size"); 34933e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg break; 35033e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg case 'u': 35133e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg opt_u = argto2(optarg, 1, "sectors/track"); 35233e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg break; 35333e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg default: 35433e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg usage(); 35533e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg } 356dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project argc -= optind; 357dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project argv += optind; 358dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (argc < 1 || argc > 2) 35933e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg usage(); 360dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project fname = *argv++; 36172eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if (!opt_create && !strchr(fname, '/')) { 36233e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg snprintf(buf, sizeof(buf), "%s%s", _PATH_DEV, fname); 36333e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg if (!(fname = strdup(buf))) 36433e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg err(1, "%s", buf); 365dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 366dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project dtype = *argv; 367052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg if (opt_A) { 368052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg if (opt_r) 369052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg errx(1, "align (-A) is incompatible with -r"); 370052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg if (opt_N) 371052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg errx(1, "align (-A) is incompatible with -N"); 372052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg } 37372eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if (opt_create) { 37433e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg if (opt_N) 37533e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg errx(1, "create (-C) is incompatible with -N"); 37633e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg fd = open(fname, O_RDWR | O_CREAT | O_TRUNC, 0644); 37733e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg if (fd == -1) 37833e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg errx(1, "failed to create %s", fname); 37933e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg if (ftruncate(fd, opt_create)) 38033e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg 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) 38233e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg err(1, "%s", fname); 38372eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if (fstat(fd, &sb)) 38433e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg err(1, "%s", fname); 38572eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if (opt_create) { 38633e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg if (!S_ISREG(sb.st_mode)) 38733e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg warnx("warning, %s is not a regular file", fname); 38872eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat } else { 38933e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg if (!S_ISCHR(sb.st_mode)) 39033e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg warnx("warning, %s is not a character device", fname); 39172eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat } 39272eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if (!opt_N) 39333e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg check_mounted(fname, sb.st_mode); 39472eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if (opt_ofs && opt_ofs != lseek(fd, opt_ofs, SEEK_SET)) 39533e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg 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) { 39833e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg getstdfmt(opt_f, &bpb); 39933e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg bpb.bsec = bpb.sec; 40033e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg bpb.sec = 0; 40133e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg bpb.bspf = bpb.spf; 40233e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg bpb.spf = 0; 40372eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat } 404dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (opt_h) 40533e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg bpb.hds = opt_h; 406dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (opt_u) 40733e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg bpb.spt = opt_u; 408dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (opt_S) 40933e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg bpb.bps = opt_S; 410dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (opt_s) 41133e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg bpb.bsec = opt_s; 412dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (oflag) 41333e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg bpb.hid = opt_o; 41472eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if (!(opt_f || (opt_h && opt_u && opt_S && opt_s && oflag))) { 41533e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg off_t delta; 41633e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg getdiskinfo(fd, fname, dtype, oflag, &bpb); 417661aff600c5cb8e72aa2892a2a75ea6015bf1457San Mehat if (opt_s) { 418661aff600c5cb8e72aa2892a2a75ea6015bf1457San Mehat bpb.bsec = opt_s; 419661aff600c5cb8e72aa2892a2a75ea6015bf1457San Mehat } 42033e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg bpb.bsec -= (opt_ofs / bpb.bps); 42133e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg delta = bpb.bsec % bpb.spt; 42233e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg if (delta != 0) { 42333e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg warnx("trim %d sectors from %d to adjust to a multiple of %d", 42433e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg (int)delta, bpb.bsec, bpb.spt); 42533e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg bpb.bsec -= delta; 42633e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg } 42733e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg if (bpb.spc == 0) { /* set defaults */ 42833e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg if (bpb.bsec <= 6000) /* about 3MB -> 512 bytes */ 42933e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg bpb.spc = 1; 43033e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg else if (bpb.bsec <= (1<<17)) /* 64M -> 4k */ 43133e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg bpb.spc = 8; 43233e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg else if (bpb.bsec <= (1<<19)) /* 256M -> 8k */ 43333e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg bpb.spc = 16; 43433e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg else if (bpb.bsec <= (1<<22)) /* 2G -> 16k, some versions of windows 43533e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg require a minimum of 65527 clusters */ 43633e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg bpb.spc = 32; 43733e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg else 43833e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg bpb.spc = 64; /* otherwise 32k */ 43933e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg } 440dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 441dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (!powerof2(bpb.bps)) 44233e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg errx(1, "bytes/sector (%u) is not a power of 2", bpb.bps); 443dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (bpb.bps < MINBPS) 44433e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg errx(1, "bytes/sector (%u) is too small; minimum is %u", 44533e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg bpb.bps, MINBPS); 446dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (!(fat = opt_F)) { 44733e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg if (opt_f) 44833e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg fat = 12; 44933e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg else if (!opt_e && (opt_i || opt_k)) 45033e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg fat = 32; 451dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 452dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if ((fat == 32 && opt_e) || (fat != 32 && (opt_i || opt_k))) 45333e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg errx(1, "-%c is not a legal FAT%s option", 45433e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg fat == 32 ? 'e' : opt_i ? 'i' : 'k', 45533e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg fat == 32 ? "32" : "12/16"); 45672eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if (opt_f && fat == 32) 45733e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg bpb.rde = 0; 458dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (opt_b) { 45933e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg if (!powerof2(opt_b)) 46033e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg errx(1, "block size (%u) is not a power of 2", opt_b); 46133e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg if (opt_b < bpb.bps) 46233e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg errx(1, "block size (%u) is too small; minimum is %u", 46333e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg opt_b, bpb.bps); 46433e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg if (opt_b > bpb.bps * MAXSPC) 46533e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg errx(1, "block size (%u) is too large; maximum is %u", opt_b, bpb.bps * MAXSPC); 46633e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg bpb.spc = opt_b / bpb.bps; 467dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 468dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (opt_c) { 46933e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg if (!powerof2(opt_c)) 47033e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg errx(1, "sectors/cluster (%u) is not a power of 2", opt_c); 47133e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg bpb.spc = opt_c; 472dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 473dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (opt_r) 47433e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg bpb.res = opt_r; 475dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (opt_n) { 47633e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg if (opt_n > MAXNFT) 47733e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg errx(1, "number of FATs (%u) is too large; maximum is %u", opt_n, MAXNFT); 47833e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg bpb.nft = opt_n; 479dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 480dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (opt_e) 48133e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg bpb.rde = opt_e; 482dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (mflag) { 48333e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg if (opt_m < 0xf0) 48433e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg errx(1, "illegal media descriptor (%#x)", opt_m); 48533e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg bpb.mid = opt_m; 486dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 487dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (opt_a) 48833e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg bpb.bspf = opt_a; 489dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (opt_i) 49033e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg bpb.infs = opt_i; 491dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (opt_k) 49233e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg bpb.bkbs = opt_k; 493dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project bss = 1; 494dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project bname = NULL; 495dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project fd1 = -1; 496dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (opt_B) { 49733e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg bname = opt_B; 49833e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg if (!strchr(bname, '/')) { 49933e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg snprintf(buf, sizeof(buf), "/boot/%s", bname); 50033e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg if (!(bname = strdup(buf))) 50133e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg err(1, "%s", buf); 50233e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg } 50333e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg if ((fd1 = open(bname, O_RDONLY)) == -1 || fstat(fd1, &sb)) 50433e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg err(1, "%s", bname); 50533e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg if (!S_ISREG(sb.st_mode) || sb.st_size % bpb.bps || 50633e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg sb.st_size < bpb.bps || sb.st_size > bpb.bps * MAXU16) 50733e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg errx(1, "%s: inappropriate file type or format", bname); 50833e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg bss = sb.st_size / bpb.bps; 509dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 510dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (!bpb.nft) 51133e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg bpb.nft = 2; 512dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (!fat) { 51333e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg if (bpb.bsec < (bpb.res ? bpb.res : bss) + 51433e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg howmany((RESFTE + (bpb.spc ? MINCLS16 : MAXCLS12 + 1)) * 51533e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg ((bpb.spc ? 16 : 12) / BPN), bpb.bps * NPB) * 51633e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg bpb.nft + 51733e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg howmany(bpb.rde ? bpb.rde : DEFRDE, 51833e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg bpb.bps / sizeof(struct de)) + 51933e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg (bpb.spc ? MINCLS16 : MAXCLS12 + 1) * 52033e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg (bpb.spc ? bpb.spc : howmany(DEFBLK, bpb.bps))) 52133e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg fat = 12; 52233e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg else if (bpb.rde || bpb.bsec < 52333e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg (bpb.res ? bpb.res : bss) + 52433e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg howmany((RESFTE + MAXCLS16) * 2, bpb.bps) * bpb.nft + 52533e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg howmany(DEFRDE, bpb.bps / sizeof(struct de)) + 52633e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg (MAXCLS16 + 1) * 52733e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg (bpb.spc ? bpb.spc : howmany(8192, bpb.bps))) 52833e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg fat = 16; 52933e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg else 53033e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg fat = 32; 531dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 532dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project x = bss; 533dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (fat == 32) { 53433e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg if (!bpb.infs) { 53533e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg if (x == MAXU16 || x == bpb.bkbs) 53633e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg errx(1, "no room for info sector"); 53733e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg bpb.infs = x; 53833e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg } 53933e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg if (bpb.infs != MAXU16 && x <= bpb.infs) 54033e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg x = bpb.infs + 1; 54133e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg if (!bpb.bkbs) { 54233e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg if (x == MAXU16) 54333e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg errx(1, "no room for backup sector"); 54433e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg bpb.bkbs = x; 54533e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg } else if (bpb.bkbs != MAXU16 && bpb.bkbs == bpb.infs) 54633e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg errx(1, "backup sector would overwrite info sector"); 54733e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg if (bpb.bkbs != MAXU16 && x <= bpb.bkbs) 54833e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg x = bpb.bkbs + 1; 549dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 550052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg 551052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg extra_res = 0; 552052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg set_res = !bpb.res; 553052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg set_spf = !bpb.bspf; 554052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg set_spc = !bpb.spc; 555052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg tempx = x; 556052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg /* 557052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg * Attempt to align if opt_A is set. This is done by increasing the number 558052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg * of reserved blocks. This can cause other factors to change, which can in 559052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg * turn change the alignment. This should take at most 2 iterations, as 560052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg * increasing the reserved amount may cause the FAT size to decrease by 1, 561052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg * requiring another nft reserved blocks. If spc changes, it will 562052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg * be half of its previous size, and thus will not throw off alignment. 563052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg */ 564052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg do { 565052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg x = tempx; 566052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg if (set_res) 567052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg bpb.res = (fat == 32 ? MAX(x, MAX(16384 / bpb.bps, 4)) : x) + extra_res; 568052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg else if (bpb.res < x) 569052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg errx(1, "too few reserved sectors"); 570052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg if (fat != 32 && !bpb.rde) 571052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg bpb.rde = DEFRDE; 572052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg rds = howmany(bpb.rde, bpb.bps / sizeof(struct de)); 573052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg if (set_spc) 574052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg for (bpb.spc = howmany(fat == 16 ? DEFBLK16 : DEFBLK, bpb.bps); 575052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg bpb.spc < MAXSPC && 576052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg bpb.res + 577052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg howmany((RESFTE + maxcls(fat)) * (fat / BPN), 578052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg bpb.bps * NPB) * bpb.nft + 579052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg rds + 580052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg (u_int64_t)(maxcls(fat) + 1) * bpb.spc <= bpb.bsec; 581052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg bpb.spc <<= 1); 582052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg if (fat != 32 && bpb.bspf > MAXU16) 583052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg errx(1, "too many sectors/FAT for FAT12/16"); 584052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg x1 = bpb.res + rds; 585052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg x = bpb.bspf ? bpb.bspf : 1; 586052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg if (x1 + (u_int64_t)x * bpb.nft > bpb.bsec) 587052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg errx(1, "meta data exceeds file system size"); 588052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg x1 += x * bpb.nft; 589052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg x = (u_int64_t)(bpb.bsec - x1) * bpb.bps * NPB / 590052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg (bpb.spc * bpb.bps * NPB + fat / BPN * bpb.nft); 591052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg x2 = howmany((RESFTE + MIN(x, maxcls(fat))) * (fat / BPN), bpb.bps * NPB); 592052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg if (set_spf) { 593052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg bpb.bspf = x2; 594052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg x1 += (bpb.bspf - 1) * bpb.nft; 595052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg } 596052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg if(set_res) { 597052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg /* attempt to align root directory */ 598052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg alignment = (bpb.res + bpb.bspf * bpb.nft) % bpb.spc; 599052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg extra_res += bpb.spc - alignment; 600052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg } 601052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg attempts++; 602052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg } while(opt_A && alignment != 0 && attempts < 2); 603052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg if (alignment != 0) 604052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg warnx("warning: Alignment failed."); 605052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg 606dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project cls = (bpb.bsec - x1) / bpb.spc; 607dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project x = (u_int64_t)bpb.bspf * bpb.bps * NPB / (fat / BPN) - RESFTE; 608dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (cls > x) 60933e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg cls = x; 610dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (bpb.bspf < x2) 61133e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg warnx("warning: sectors/FAT limits file system to %u clusters", cls); 612dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (cls < mincls(fat)) 61333e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg errx(1, "%u clusters too few clusters for FAT%u, need %u", cls, fat, mincls(fat)); 614dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (cls > maxcls(fat)) { 61533e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg cls = maxcls(fat); 61633e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg bpb.bsec = x1 + (cls + 1) * bpb.spc - 1; 61733e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg warnx("warning: FAT type limits file system to %u sectors", bpb.bsec); 618dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 61933e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg printf("%s: %u sector%s in %u FAT%u cluster%s (%u bytes/cluster)\n", 62033e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg fname, cls * bpb.spc, cls * bpb.spc == 1 ? "" : "s", cls, fat, 62133e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg cls == 1 ? "" : "s", bpb.bps * bpb.spc); 622dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (!bpb.mid) 62333e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg bpb.mid = !bpb.hid ? 0xf0 : 0xf8; 624dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (fat == 32) 62533e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg bpb.rdcl = RESFTE; 626dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (bpb.hid + bpb.bsec <= MAXU16) { 62733e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg bpb.sec = bpb.bsec; 62833e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg bpb.bsec = 0; 629dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 630dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (fat != 32) { 63133e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg bpb.spf = bpb.bspf; 63233e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg bpb.bspf = 0; 633dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 634dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project print_bpb(&bpb); 635dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (!opt_N) { 63633e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg gettimeofday(&tv, NULL); 63733e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg now = tv.tv_sec; 63833e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg tm = localtime(&now); 63933e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg if (!(img = malloc(bpb.bps))) 64033e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg err(1, "%u", bpb.bps); 64133e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg dir = bpb.res + (bpb.spf ? bpb.spf : bpb.bspf) * bpb.nft; 64233e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg for (lsn = 0; lsn < dir + (fat == 32 ? bpb.spc : rds); lsn++) { 64333e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg x = lsn; 64433e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg if (opt_B && fat == 32 && bpb.bkbs != MAXU16 && bss <= bpb.bkbs && x >= bpb.bkbs) { 64533e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg x -= bpb.bkbs; 64633e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg if (!x && lseek(fd1, opt_ofs, SEEK_SET)) 64733e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg err(1, "%s", bname); 64833e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg } 64933e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg if (opt_B && x < bss) { 65033e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg if ((n = read(fd1, img, bpb.bps)) == -1) 65133e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg err(1, "%s", bname); 65233e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg if ((unsigned)n != bpb.bps) 65333e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg errx(1, "%s: can't read sector %u", bname, x); 65433e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg } else 65533e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg memset(img, 0, bpb.bps); 65633e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg if (!lsn || (fat == 32 && bpb.bkbs != MAXU16 && lsn == bpb.bkbs)) { 65733e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg x1 = sizeof(struct bs); 65833e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg bsbpb = (struct bsbpb *)(img + x1); 65933e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg mk2(bsbpb->bps, bpb.bps); 66033e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg mk1(bsbpb->spc, bpb.spc); 66133e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg mk2(bsbpb->res, bpb.res); 66233e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg mk1(bsbpb->nft, bpb.nft); 66333e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg mk2(bsbpb->rde, bpb.rde); 66433e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg mk2(bsbpb->sec, bpb.sec); 66533e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg mk1(bsbpb->mid, bpb.mid); 66633e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg mk2(bsbpb->spf, bpb.spf); 66733e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg mk2(bsbpb->spt, bpb.spt); 66833e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg mk2(bsbpb->hds, bpb.hds); 66933e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg mk4(bsbpb->hid, bpb.hid); 67033e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg mk4(bsbpb->bsec, bpb.bsec); 67133e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg x1 += sizeof(struct bsbpb); 67233e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg if (fat == 32) { 67333e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg bsxbpb = (struct bsxbpb *)(img + x1); 67433e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg mk4(bsxbpb->bspf, bpb.bspf); 67533e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg mk2(bsxbpb->xflg, 0); 67633e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg mk2(bsxbpb->vers, 0); 67733e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg mk4(bsxbpb->rdcl, bpb.rdcl); 67833e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg mk2(bsxbpb->infs, bpb.infs); 67933e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg mk2(bsxbpb->bkbs, bpb.bkbs); 68033e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg x1 += sizeof(struct bsxbpb); 68133e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg } 68233e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg bsx = (struct bsx *)(img + x1); 68333e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg mk1(bsx->sig, 0x29); 68433e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg if (Iflag) 68533e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg x = opt_I; 68633e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg else 68733e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg x = (((u_int)(1 + tm->tm_mon) << 8 | 68833e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg (u_int)tm->tm_mday) + 68933e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg ((u_int)tm->tm_sec << 8 | 69033e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg (u_int)(tv.tv_usec / 10))) << 16 | 69133e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg ((u_int)(1900 + tm->tm_year) + 69233e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg ((u_int)tm->tm_hour << 8 | 69333e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg (u_int)tm->tm_min)); 69433e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg mk4(bsx->volid, x); 69533e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg mklabel(bsx->label, opt_L ? opt_L : "NO NAME"); 69633e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg sprintf(buf, "FAT%u", fat); 69733e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg setstr(bsx->type, buf, sizeof(bsx->type)); 69833e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg if (!opt_B) { 69933e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg x1 += sizeof(struct bsx); 70033e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg bs = (struct bs *)img; 70133e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg mk1(bs->jmp[0], 0xeb); 70233e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg mk1(bs->jmp[1], x1 - 2); 70333e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg mk1(bs->jmp[2], 0x90); 70433e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg setstr(bs->oem, opt_O ? opt_O : "BSD 4.4", 70533e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg sizeof(bs->oem)); 70633e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg memcpy(img + x1, bootcode, sizeof(bootcode)); 70733e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg mk2(img + MINBPS - 2, DOSMAGIC); 70833e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg } 70933e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg } else if (fat == 32 && bpb.infs != MAXU16 && 71033e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg (lsn == bpb.infs || (bpb.bkbs != MAXU16 && 71133e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg lsn == bpb.bkbs + bpb.infs))) { 71233e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg mk4(img, 0x41615252); 71333e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg mk4(img + MINBPS - 28, 0x61417272); 71433e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg mk4(img + MINBPS - 24, 0xffffffff); 71533e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg mk4(img + MINBPS - 20, bpb.rdcl); 71633e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg mk2(img + MINBPS - 2, DOSMAGIC); 71733e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg } else if (lsn >= bpb.res && lsn < dir && 71833e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg !((lsn - bpb.res) % (bpb.spf ? bpb.spf : bpb.bspf))) { 71933e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg mk1(img[0], bpb.mid); 72033e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg for (x = 1; x < fat * (fat == 32 ? 3 : 2) / 8; x++) 72133e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg mk1(img[x], fat == 32 && x % 4 == 3 ? 0x0f : 0xff); 72233e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg } else if (lsn == dir && opt_L) { 72333e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg de = (struct de *)img; 72433e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg mklabel(de->namext, opt_L); 72533e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg mk1(de->attr, 050); 72633e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg x = (u_int)tm->tm_hour << 11 | 72733e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg (u_int)tm->tm_min << 5 | 72833e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg (u_int)tm->tm_sec >> 1; 72933e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg mk2(de->time, x); 73033e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg x = (u_int)(tm->tm_year - 80) << 9 | 73133e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg (u_int)(tm->tm_mon + 1) << 5 | 73233e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg (u_int)tm->tm_mday; 73333e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg mk2(de->date, x); 73433e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg } 73533e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg if ((n = write(fd, img, bpb.bps)) == -1) 73633e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg err(1, "%s", fname); 73733e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg if ((unsigned)n != bpb.bps) { 73833e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg errx(1, "%s: can't write sector %u", fname, lsn); 739eab453c612d6d422f863c31da67f00bc4beec914San Mehat exit(1); 740eab453c612d6d422f863c31da67f00bc4beec914San Mehat } 74133e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg } 742dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 743dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return 0; 744dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 745dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 746dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 74772eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat * Exit with error if file system is mounted. 74872eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat */ 74933e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenbergstatic void check_mounted(const char *fname, mode_t mode) 75072eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat{ 751aa907768af7ba9e29901d356cdcac6a436970323Mark Salyzyn#ifdef ANDROID 752aa907768af7ba9e29901d356cdcac6a436970323Mark Salyzyn warnx("Skipping mount checks"); 753aa907768af7ba9e29901d356cdcac6a436970323Mark Salyzyn#else 75472eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat struct statfs *mp; 75572eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat const char *s1, *s2; 75672eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat size_t len; 75772eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat int n, r; 75872eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat 75972eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if (!(n = getmntinfo(&mp, MNT_NOWAIT))) 76033e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg err(1, "getmntinfo"); 76172eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat len = strlen(_PATH_DEV); 76272eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat s1 = fname; 76372eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if (!strncmp(s1, _PATH_DEV, len)) 76433e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg s1 += len; 76572eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat r = S_ISCHR(mode) && s1 != fname && *s1 == 'r'; 76672eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat for (; n--; mp++) { 76733e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg s2 = mp->f_mntfromname; 76833e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg if (!strncmp(s2, _PATH_DEV, len)) 76933e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg s2 += len; 77033e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg if ((r && s2 != mp->f_mntfromname && !strcmp(s1 + 1, s2)) || !strcmp(s1, s2)) 77133e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg errx(1, "%s is mounted on %s", fname, mp->f_mntonname); 77272eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat } 77372eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat#endif 77472eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat} 77572eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat 77672eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat/* 77772eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat * Get a standard format. 77872eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat */ 77933e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenbergstatic void getstdfmt(const char *fmt, struct bpb *bpb) 78072eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat{ 78172eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat u_int x, i; 78272eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat 78372eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat x = sizeof(stdfmt) / sizeof(stdfmt[0]); 78472eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat for (i = 0; i < x && strcmp(fmt, stdfmt[i].name); i++); 78572eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if (i == x) 78633e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg errx(1, "%s: unknown standard format", fmt); 78772eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat *bpb = stdfmt[i].bpb; 78872eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat} 78972eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat 79072eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat/* 79172eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat * Get disk slice, partition, and geometry information. 79272eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat */ 79372eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat 79472eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat#ifdef ANDROID 79533e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenbergstatic void getdiskinfo(int fd, const char *fname, const char *dtype, 79633e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg __unused int oflag,struct bpb *bpb) 79772eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat{ 79872eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat struct hd_geometry geom; 79972eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat 80072eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if (ioctl(fd, BLKSSZGET, &bpb->bps)) { 801ff3bcd03079d9e0e94f70955370f3eb940d6244aSan Mehat fprintf(stderr, "Error getting bytes / sector (%s)\n", strerror(errno)); 80272eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat exit(1); 80372eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat } 80472eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat 80572eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat ckgeom(fname, bpb->bps, "bytes/sector"); 80672eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat 80772eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if (ioctl(fd, BLKGETSIZE, &bpb->bsec)) { 808ff3bcd03079d9e0e94f70955370f3eb940d6244aSan Mehat fprintf(stderr, "Error getting blocksize (%s)\n", strerror(errno)); 80972eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat exit(1); 81072eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat } 81172eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat 81272eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if (ioctl(fd, HDIO_GETGEO, &geom)) { 813ff3bcd03079d9e0e94f70955370f3eb940d6244aSan Mehat fprintf(stderr, "Error getting gemoetry (%s) - trying sane values\n", strerror(errno)); 814ff3bcd03079d9e0e94f70955370f3eb940d6244aSan Mehat geom.heads = 64; 815ff3bcd03079d9e0e94f70955370f3eb940d6244aSan Mehat geom.sectors = 63; 81672eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat } 81772eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat 818eab453c612d6d422f863c31da67f00bc4beec914San Mehat if (!geom.heads) { 819eab453c612d6d422f863c31da67f00bc4beec914San Mehat printf("Bogus heads from kernel - setting sane value\n"); 820eab453c612d6d422f863c31da67f00bc4beec914San Mehat geom.heads = 64; 821eab453c612d6d422f863c31da67f00bc4beec914San Mehat } 822eab453c612d6d422f863c31da67f00bc4beec914San Mehat 823eab453c612d6d422f863c31da67f00bc4beec914San Mehat if (!geom.sectors) { 824eab453c612d6d422f863c31da67f00bc4beec914San Mehat printf("Bogus sectors from kernel - setting sane value\n"); 825eab453c612d6d422f863c31da67f00bc4beec914San Mehat geom.sectors = 63; 826eab453c612d6d422f863c31da67f00bc4beec914San Mehat } 827eab453c612d6d422f863c31da67f00bc4beec914San Mehat 82872eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat bpb->spt = geom.sectors; 82972eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat ckgeom(fname, bpb->spt, "sectors/track"); 83072eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat 83172eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat bpb->hds = geom.heads; 83272eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat ckgeom(fname, bpb->hds, "drive heads"); 83372eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat} 83472eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat 83572eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat#else 83672eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat 83733e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenbergstatic void getdiskinfo(int fd, const char *fname, const char *dtype, 83833e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg __unused int oflag, struct bpb *bpb) 83972eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat{ 84072eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat struct disklabel *lp, dlp; 84172eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat struct fd_type type; 84272eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat off_t ms, hs = 0; 84372eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat 84472eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat lp = NULL; 84572eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat 84672eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat /* If the user specified a disk type, try to use that */ 84772eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if (dtype != NULL) { 84833e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg lp = getdiskbyname(dtype); 84972eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat } 85072eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat 85172eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat /* Maybe it's a floppy drive */ 85272eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if (lp == NULL) { 85333e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg if (ioctl(fd, DIOCGMEDIASIZE, &ms) == -1) { 85433e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg struct stat st; 85533e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg 85633e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg if (fstat(fd, &st)) 85733e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg err(1, "Cannot get disk size"); 85833e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg /* create a fake geometry for a file image */ 85933e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg ms = st.st_size; 86033e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg dlp.d_secsize = 512; 86133e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg dlp.d_nsectors = 63; 86233e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg dlp.d_ntracks = 255; 86333e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg dlp.d_secperunit = ms / dlp.d_secsize; 86433e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg lp = &dlp; 86533e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg } else if (ioctl(fd, FD_GTYPE, &type) != -1) { 86633e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg dlp.d_secsize = 128 << type.secsize; 86733e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg dlp.d_nsectors = type.sectrac; 86833e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg dlp.d_ntracks = type.heads; 86933e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg dlp.d_secperunit = ms / dlp.d_secsize; 87033e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg lp = &dlp; 87133e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg } 87272eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat } 87372eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat 87472eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat /* Maybe it's a fixed drive */ 87572eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if (lp == NULL) { 87633e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg if (ioctl(fd, DIOCGDINFO, &dlp) == -1) { 87733e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg if (bpb->bps == 0 && ioctl(fd, DIOCGSECTORSIZE, &dlp.d_secsize) == -1) 87833e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg errx(1, "Cannot get sector size, %s", strerror(errno)); 87933e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg 88033e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg /* XXX Should we use bpb->bps if it's set? */ 88133e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg dlp.d_secperunit = ms / dlp.d_secsize; 88233e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg 88333e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg if (bpb->spt == 0 && ioctl(fd, DIOCGFWSECTORS, &dlp.d_nsectors) == -1) { 88433e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg warnx("Cannot get number of sectors per track, %s", strerror(errno)); 88533e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg dlp.d_nsectors = 63; 88633e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg } 88733e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg if (bpb->hds == 0 && ioctl(fd, DIOCGFWHEADS, &dlp.d_ntracks) == -1) { 88833e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg warnx("Cannot get number of heads, %s", strerror(errno)); 88933e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg if (dlp.d_secperunit <= 63*1*1024) 89033e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg dlp.d_ntracks = 1; 89133e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg else if (dlp.d_secperunit <= 63*16*1024) 89233e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg dlp.d_ntracks = 16; 89333e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg else 89433e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg dlp.d_ntracks = 255; 89533e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg } 89633e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg } 89733e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg 89833e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg hs = (ms / dlp.d_secsize) - dlp.d_secperunit; 89933e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg lp = &dlp; 90072eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat } 90172eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat 90272eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if (bpb->bps == 0) 90333e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg bpb->bps = ckgeom(fname, lp->d_secsize, "bytes/sector"); 90472eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if (bpb->spt == 0) 90533e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg bpb->spt = ckgeom(fname, lp->d_nsectors, "sectors/track"); 90672eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if (bpb->hds == 0) 90733e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg bpb->hds = ckgeom(fname, lp->d_ntracks, "drive heads"); 90872eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if (bpb->bsec == 0) 90933e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg bpb->bsec = lp->d_secperunit; 91072eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if (bpb->hid == 0) 91133e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg bpb->hid = hs; 91272eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat} 91372eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat#endif 91472eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat 91572eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat/* 916dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Print out BPB values. 917dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 91833e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenbergstatic void print_bpb(struct bpb *bpb) 919dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 920dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project printf("bps=%u spc=%u res=%u nft=%u", bpb->bps, bpb->spc, bpb->res, 92133e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg bpb->nft); 922dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (bpb->rde) 92333e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg printf(" rde=%u", bpb->rde); 924dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (bpb->sec) 92533e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg printf(" sec=%u", bpb->sec); 926dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project printf(" mid=%#x", bpb->mid); 927dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (bpb->spf) 92833e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg printf(" spf=%u", bpb->spf); 929dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project printf(" spt=%u hds=%u hid=%u", bpb->spt, bpb->hds, bpb->hid); 930dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (bpb->bsec) 93133e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg printf(" bsec=%u", bpb->bsec); 932dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (!bpb->spf) { 93333e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg printf(" bspf=%u rdcl=%u", bpb->bspf, bpb->rdcl); 93433e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg printf(" infs="); 93533e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg printf(bpb->infs == MAXU16 ? "%#x" : "%u", bpb->infs); 93633e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg printf(" bkbs="); 93733e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg printf(bpb->bkbs == MAXU16 ? "%#x" : "%u", bpb->bkbs); 938dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 939dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project printf("\n"); 940dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 941dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 942dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 943dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Check a disk geometry value. 944dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 94533e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenbergstatic u_int ckgeom(const char *fname, u_int val, const char *msg) 946dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 947dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (!val) 94833e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg errx(1, "%s: no default %s", fname, msg); 949dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (val > MAXU16) 95033e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg errx(1, "%s: illegal %s %d", fname, msg, val); 951dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return val; 952dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 953dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 954dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 955dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Convert and check a numeric option argument. 956dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 95733e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenbergstatic u_int argtou(const char *arg, u_int lo, u_int hi, const char *msg) 958dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 959dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project char *s; 960dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project u_long x; 961dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 962dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project errno = 0; 963dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project x = strtoul(arg, &s, 0); 964dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (errno || !*arg || *s || x < lo || x > hi) 96533e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg errx(1, "%s: bad %s", arg, msg); 96672eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat return x; 96772eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat} 96872eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat 96972eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat/* 97072eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat * Same for off_t, with optional skmgpP suffix 97172eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat */ 97233e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenbergstatic off_t argtooff(const char *arg, const char *msg) 97372eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat{ 97472eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat char *s; 97572eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat off_t x; 97672eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat 97772eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat x = strtoll(arg, &s, 0); 97872eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat /* allow at most one extra char */ 97972eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat if (errno || x < 0 || (s[0] && s[1]) ) 98033e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg errx(1, "%s: bad %s", arg, msg); 98133e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg if (*s) { /* the extra char is the multiplier */ 98233e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg switch (*s) { 98333e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg default: 98433e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg errx(1, "%s: bad %s", arg, msg); 98533e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg /* notreached */ 98633e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg 98733e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg case 's': /* sector */ 98833e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg case 'S': 98933e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg x <<= 9; /* times 512 */ 99033e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg break; 99133e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg 99233e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg case 'k': /* kilobyte */ 99333e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg case 'K': 99433e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg x <<= 10; /* times 1024 */ 99533e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg break; 99633e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg 99733e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg case 'm': /* megabyte */ 99833e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg case 'M': 99933e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg x <<= 20; /* times 1024*1024 */ 100033e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg break; 100133e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg 100233e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg case 'g': /* gigabyte */ 100333e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg case 'G': 100433e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg x <<= 30; /* times 1024*1024*1024 */ 100533e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg break; 100633e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg 100733e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg case 'p': /* partition start */ 100833e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg case 'P': /* partition start */ 100933e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg case 'l': /* partition length */ 101033e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg case 'L': /* partition length */ 101133e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg errx(1, "%s: not supported yet %s", arg, msg); 101233e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg /* notreached */ 101333e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg } 101472eead43c7711ca97b2d7f578e6b8854a2856ce0San Mehat } 1015dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return x; 1016dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 1017dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 1018dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 1019dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Check a volume label. 1020dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 102133e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenbergstatic int oklabel(const char *src) 1022dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 1023dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int c, i; 1024dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 1025dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project for (i = 0; i <= 11; i++) { 102633e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg c = (u_char)*src++; 102733e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg if (c < ' ' + !i || strchr("\"*+,./:;<=>?[\\]|", c)) 102833e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg break; 1029dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 1030dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return i && !c; 1031dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 1032dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 1033dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 1034dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Make a volume label. 1035dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 103633e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenbergstatic void mklabel(u_int8_t *dest, const char *src) 1037dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 1038dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int c, i; 1039dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 1040dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project for (i = 0; i < 11; i++) { 104133e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg c = *src ? toupper(*src++) : ' '; 104233e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg *dest++ = !i && c == '\xe5' ? 5 : c; 1043dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 1044dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 1045dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 1046dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 1047dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Copy string, padding with spaces. 1048dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 104933e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenbergstatic void setstr(u_int8_t *dest, const char *src, size_t len) 1050dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 1051dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project while (len--) 105233e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg *dest++ = *src ? *src++ : ' '; 1053dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 1054dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 1055dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 1056dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Print usage message. 1057dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 105833e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenbergstatic void usage(void) 1059dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 106033e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg fprintf(stderr, 106133e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg "usage: newfs_msdos [ -options ] special [disktype]\n" 106233e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg "where the options are:\n" 106333e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg "\t-@ create file system at specified offset\n" 1064052f27562154d175267999106bd6bf18fc8c363eDaniel Rosenberg "\t-A Attempt to cluster align root directory\n" 106533e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg "\t-B get bootstrap from file\n" 106633e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg "\t-C create image file with specified size\n" 106733e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg "\t-F FAT type (12, 16, or 32)\n" 106833e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg "\t-I volume ID\n" 106933e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg "\t-L volume label\n" 107033e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg "\t-N don't create file system: just print out parameters\n" 107133e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg "\t-O OEM string\n" 107233e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg "\t-S bytes/sector\n" 107333e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg "\t-a sectors/FAT\n" 107433e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg "\t-b block size\n" 107533e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg "\t-c sectors/cluster\n" 107633e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg "\t-e root directory entries\n" 107733e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg "\t-f standard format\n" 107833e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg "\t-h drive heads\n" 107933e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg "\t-i file system info sector\n" 108033e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg "\t-k backup boot sector\n" 108133e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg "\t-m media descriptor\n" 108233e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg "\t-n number of FATs\n" 108333e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg "\t-o hidden sectors\n" 108433e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg "\t-r reserved sectors\n" 108533e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg "\t-s file system size (sectors)\n" 108633e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg "\t-u sectors/track\n"); 108733e7b13167bcfd65b6c595e316e515ff8eab4b33Daniel Rosenberg exit(1); 1088dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 1089