xref: /illumos-gate/usr/src/cmd/fdisk/fdisk.c (revision 13b70267)

/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */

/*
 * Copyright (c) 1992, 2010, Oracle and/or its affiliates. All rights reserved.
 * Copyright 2018 OmniOS Community Edition (OmniOSce) Association.
 */

/*	Copyright (c) 1990, 1991 UNIX System Laboratories, Inc.	*/
/*	Copyright (c) 1984, 1986, 1987, 1988, 1989, 1990 AT&T	*/
/*	  All Rights Reserved	*/

/*	Copyright (c) 1987, 1988 Microsoft Corporation	*/
/*	  All Rights Reserved	*/

/*
 * PROGRAM: fdisk(1M)
 * This program reads the partition table on the specified device and
 * also reads the drive parameters. The user can perform various
 * operations from a supplied menu or from the command line. Diagnostic
 * options are also available.
 */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <errno.h>
#include <fcntl.h>
#include <ctype.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <limits.h>
#include <sys/param.h>
#include <sys/systeminfo.h>
#include <sys/efi_partition.h>
#include <sys/byteorder.h>
#include <sys/systeminfo.h>

#include <sys/dktp/fdisk.h>
#include <sys/dkio.h>
#include <sys/vtoc.h>
#ifdef i386
#include <sys/tty.h>
#include <libfdisk.h>
#endif

#define	CLR_SCR ""
#define	CLR_LIN ""
#define	HOME "" \
	""
#define	Q_LINE ""

#ifdef i386
#define	W_LINE ""
#else
#define	W_LINE ""
#endif

#define	E_LINE ""

#ifdef i386
#define	M_LINE "" \
	""
#else
#define	M_LINE "" \
	""
#endif

#define	T_LINE ""

#define	DEFAULT_PATH			"/dev/rdsk/"
#define	DEFAULT_MASTER_BOOT_FILE	"/boot/pmbr"

#define	DK_MAX_2TB	UINT32_MAX	/* Max # of sectors in 2TB */

/* for clear_vtoc() */
#define	OLD		0
#define	NEW		1

/* readvtoc/writevtoc return codes */
#define	VTOC_OK		0	/* Good VTOC */
#define	VTOC_INVAL	1	/* invalid VTOC */
#define	VTOC_NOTSUP	2	/* operation not supported - EFI label */
#define	VTOC_RWERR	3	/* couldn't read or write VTOC */

/*
 * Support for fdisk(1M) on the SPARC platform
 *	In order to convert little endian values to big endian for SPARC,
 *	byte/short and long values must be swapped.
 *	These swapping macros will be used to access information in the
 *	mboot and ipart structures.
 */

#ifdef sparc
#define	les(val)	((((val)&0xFF)<<8)|(((val)>>8)&0xFF))
#define	lel(val)	(((unsigned)(les((val)&0x0000FFFF))<<16) | \
			    (les((unsigned)((val)&0xffff0000)>>16)))
#else
#define	les(val)	(val)
#define	lel(val)	(val)
#endif

#if defined(_SUNOS_VTOC_16)
#define	VTOC_OFFSET	1
#elif defined(_SUNOS_VTOC_8)
#define	VTOC_OFFSET	0
#else
#error No VTOC format defined.
#endif

#ifdef i386
#define	FDISK_KB	(1024)
#define	FDISK_MB	(FDISK_KB * 1024)
#define	FDISK_GB	(FDISK_MB * 1024)
#define	TRUE	1

#define	FDISK_MAX_VALID_PART_ID	255
#define	FDISK_MAX_VALID_PART_NUM_DIGITS	2
#define	FDISK_MAX_VALID_PART_ID_DIGITS	3

/* Maximum number of digits for a valid partition size */
#define	FDISK_MAX_VALID_CYL_NUM_DIGITS	10

/* Minimum partition size in cylinders */
#define	FDISK_MIN_PART_SIZE	1
#endif

static char Usage[] = "Usage: fdisk\n"
"[ -A id:act:bhead:bsect:bcyl:ehead:esect:ecyl:rsect:numsect ]\n"
"[ -b masterboot ]\n"
"[ -D id:act:bhead:bsect:bcyl:ehead:esect:ecyl:rsect:numsect ]\n"
"[ -E [slot:active] ]\n"
"[ -F fdisk_file ] [ -h ] [ -o offset ] [ -P fill_patt ] [ -s size ]\n"
"[ -S geom_file ] [ [ -v ] -W { creat_fdisk_file | - } ]\n"
"[ -w | r | d | n | I | B | g | G | R | t | T ] rdevice";

static char Usage1[] = "    Partition options:\n"
"	-A id:act:bhead:bsect:bcyl:ehead:esect:ecyl:rsect:numsect\n"
"		Create a partition with specific attributes:\n"
"		id      = system id number (fdisk.h) for the partition type\n"
"		act     = active partition flag (0 is off and 128 is on)\n"
"		bhead   = beginning head for start of partition\n"
"		bsect   = beginning sector for start of partition\n"
"		bcyl    = beginning cylinder for start of partition\n"
"		ehead   = ending head for end of partition\n"
"		esect   = ending sector for end of partition\n"
"		ecyl    = ending cylinder for end of partition\n"
"		rsect   = sector number from start of disk for\n"
"			  start of partition\n"
"		numsect = partition size in sectors\n"
"	-b master_boot\n"
"		Use master_boot as the master boot file.\n"
"	-B	Create one Solaris partition that uses the entire disk.\n"
"	-D id:act:bhead:bsect:bcyl:ehead:esect:ecyl:rsect:numsect\n"
"		Delete a partition. See attribute definitions for -A.\n"
"	-E [slot:active]\n"
"		Create an EFI partition that uses the entire disk.\n"
"	-F fdisk_file\n"
"		Use fdisk_file to initialize on-line fdisk table.\n"
"	-I	Forego device checks. Generate a file image of what would go\n"
"		on a disk using the geometry specified with the -S option.\n"
"	-n	Do not run in interactive mode.\n"
"	-R	Open the disk device as read-only.\n"
"	-t	Check and adjust VTOC to be consistent with fdisk table.\n"
"		VTOC slices exceeding the partition size will be truncated.\n"
"	-T	Check and adjust VTOC to be consistent with fdisk table.\n"
"		VTOC slices exceeding the partition size will be removed.\n"
"	-W fdisk_file\n"
"		Write on-disk table to fdisk_file.\n"
"	-W -	Write on-disk table to standard output.\n"
"	-v	Display virtual geometry. Must be used with the -W option.\n"
"    Diagnostic options:\n"
"	-d	Activate debug information about progress.\n"
"	-g	Write label geometry to standard output:\n"
"		PCYL		number of physical cylinders\n"
"		NCYL		number of usable cylinders\n"
"		ACYL		number of alternate cylinders\n"
"		BCYL		cylinder offset\n"
"		NHEADS		number of heads\n"
"		NSECTORS	number of sectors per track\n"
"		SECTSIZ		size of a sector in bytes\n"
"	-G	Write physical geometry to standard output (see -g).\n"
"	-h	Issue this verbose help message.\n"
"	-o offset\n"
"		Block offset from start of disk (default 0). Ignored if\n"
"		-P # specified.\n"
"	-P fill_patt\n"
"		Fill disk with pattern fill_patt. fill_patt can be decimal or\n"
"		hexadecimal and is used as number for constant long word\n"
"		pattern. If fill_patt is \"#\" then pattern of block #\n"
"		for each block. Pattern is put in each block as long words\n"
"		and fills each block (see -o and -s).\n"
"	-r	Read from a disk to stdout (see -o and -s).\n"
"	-s size	Number of blocks on which to perform operation (see -o).\n"
"	-S geom_file\n"
"		Use geom_file to set the label geometry (see -g).\n"
"	-w	Write to a disk from stdin (see -o and -s).";

static char Ostr[] = "Other OS";
static char Dstr[] = "DOS12";
static char D16str[] = "DOS16";
static char DDstr[] = "DOS-DATA";
static char EDstr[] = "EXT-DOS";
static char DBstr[] = "DOS-BIG";
static char PCstr[] = "PCIX";
static char Ustr[] = "UNIX System";
static char SUstr[] = "Solaris";
static char SU2str[] = "Solaris2";
static char X86str[] = "x86 Boot";
static char DIAGstr[] = "Diagnostic";
static char IFSstr[] = "IFS: NTFS";
static char AIXstr[] = "AIX Boot";
static char AIXDstr[] = "AIX Data";
static char OS2str[] = "OS/2 Boot";
static char WINstr[] = "Win95 FAT32";
static char EWINstr[] = "Ext Win95";
static char FAT95str[] = "FAT16 LBA";
static char EXTLstr[] = "EXT LBA";
static char LINUXstr[] = "Linux";
static char CPMstr[] = "CP/M";
static char NOV2str[] = "Netware 286";
static char NOVstr[] = "Netware 3.x+";
static char QNXstr[] = "QNX 4.x";
static char QNX2str[] = "QNX part 2";
static char QNX3str[] = "QNX part 3";
static char LINNATstr[] = "Linux native";
#ifdef i386
static char LINSWAPstr[] = "Linux swap";
#endif
static char NTFSVOL1str[] = "NT volset 1";
static char NTFSVOL2str[] = "NT volset 2";
static char BSDstr[] = "BSD OS";
static char NEXTSTEPstr[] = "NeXTSTEP";
static char BSDIFSstr[] = "BSDI FS";
static char BSDISWAPstr[] = "BSDI swap";
static char Actvstr[] = "Active";
static char EFIstr[] = "EFI";
static char NAstr[] = "      ";

/* All the user options and flags */
static char *Dfltdev;			/* name of fixed disk drive */

/* Diagnostic options */
static int	io_wrt = 0;		/* write stdin to disk (-w) */
static int	io_rd = 0;		/* read disk and write stdout (-r) */
static char	*io_fatt;		/* user supplied pattern (-P pattern) */
static int	io_patt = 0;		/* write pattern to disk (-P pattern) */
static int	io_lgeom = 0;		/* get label geometry (-g) */
static int	io_pgeom = 0;		/* get drive physical geometry (-G) */
static char	*io_sgeom = 0;		/* set label geometry (-S geom_file) */
static int	io_readonly = 0;	/* do not write to disk (-R) */

/* The -o offset and -s size options specify the area of the disk on */
/* which to perform the particular operation; i.e., -P, -r, or -w. */
static off_t	io_offset = 0;		/* offset sector (-o offset) */
static off_t	io_size = 0;		/* size in sectors (-s size) */

/* Partition table flags */
static int	v_flag = 0;		/* virtual geometry-HBA flag (-v) */
static int	stdo_flag = 0;		/* stdout flag (-W -) */
static int	io_fdisk = 0;		/* do fdisk operation */
static int	io_ifdisk = 0;		/* interactive partition */
static int	io_nifdisk = 0;		/* non-interactive partition (-n) */

static int	io_adjt = 0;		/* check/adjust VTOC (truncate (-t)) */
static int	io_ADJT = 0;		/* check/adjust VTOC (delete (-T)) */
static char	*io_ffdisk = 0;		/* input fdisk file name (-F file) */
static char	*io_Wfdisk = 0;		/* output fdisk file name (-W file) */
static char	*io_Afdisk = 0;		/* add entry to partition table (-A) */
static char	*io_Dfdisk = 0;		/* delete entry from part. table (-D) */

static char	*io_mboot = 0;		/* master boot record (-b boot_file) */

static struct mboot BootCod;		/* buffer for master boot record */

static int	io_wholedisk = 0;	/* use whole disk for Solaris (-B) */
static int	io_EFIdisk = 0;		/* use whole disk for EFI (-E) */
static int	io_EFIslot = 0;		/* slot in which to place EFI entry */
static int	io_EFIactive = 0;	/* mark EFI entry as active */
static int	io_debug = 0;		/* activate verbose mode (-d) */
static int	io_image = 0;		/* create image using geometry (-I) */

static struct mboot *Bootblk;		/* pointer to cut/paste sector zero */
static char	*Bootsect;		/* pointer to sector zero buffer */
static char	*Nullsect;
static struct extvtoc	disk_vtoc;	/* verify VTOC table */
static int	vt_inval = 0;
static int	no_virtgeom_ioctl = 0;	/* ioctl for virtual geometry failed */
static int	no_physgeom_ioctl = 0;	/* ioctl for physical geometry failed */

static struct ipart	Table[FD_NUMPART];
static struct ipart	Old_Table[FD_NUMPART];
static int		skip_verify[FD_NUMPART]; /* special case skip sz chk */

/* Disk geometry information */
static struct dk_minfo	minfo;
static struct dk_geom	disk_geom;

static int Dev;			/* fd for open device */

static diskaddr_t	dev_capacity;	/* number of blocks on device */
static diskaddr_t	chs_capacity;	/* Numcyl_usable * heads * sectors */

static int		Numcyl_usable;	/* Number of usable cylinders */
					/*  used to limit fdisk to 2TB */

/* Physical geometry for the drive */
static int	Numcyl;			/* number of cylinders */
static int	heads;			/* number of heads */
static int	sectors;		/* number of sectors per track */
static int	acyl;			/* number of alternate sectors */

/* HBA (virtual) geometry for the drive */
static int	hba_Numcyl;		/* number of cylinders */
static int	hba_heads;		/* number of heads */
static int	hba_sectors;		/* number of sectors per track */

static int	sectsiz;		/* sector size */

/* Load functions for fdisk table modification */
#define	LOADFILE	0	/* load fdisk from file */
#define	LOADDEL		1	/* delete an fdisk entry */
#define	LOADADD		2	/* add an fdisk entry */

#define	CBUFLEN 80
static char s[CBUFLEN];

#ifdef i386
/*
 * Complete list of all the 255 partition types. Some are unknown types
 * and some entries are known to be unused.
 *
 * Courtesy of http://www.win.tue.nl/~aeb/partitions/partition_types-1.html
 */
char *fdisk_part_types[] = {
	"Empty",				/* 0 */
	"FAT12",				/* 1 */
	"XENIX /",				/* 2 */
	"XENIX /usr",				/* 3 */
	"FAT16 (Upto 32M)",			/* 4 */
	"DOS Extended",				/* 5 */
	"FAT16 (>32M, HUGEDOS)",		/* 6 */
	"IFS: NTFS",				/* 7 */
	"AIX Boot/QNX(qny)",			/* 8 */
	"AIX Data/QNX(qnz)",			/* 9 */
	"OS/2 Boot/Coherent swap",		/* 10 */
	"WIN95 FAT32(Upto 2047GB)",		/* 11 */
	"WIN95 FAT32(LBA)",			/* 12 */
	"Unused",				/* 13 */
	"WIN95 FAT16(LBA)",			/* 14 */
	"WIN95 Extended(LBA)",			/* 15 */
	"OPUS",					/* 16 */
	"Hidden FAT12",				/* 17 */
	"Diagnostic",				/* 18 */
	"Unknown",				/* 19 */
	"Hidden FAT16(Upto 32M)",		/* 20 */
	"Unknown",				/* 21 */
	"Hidden FAT16(>=32M)",			/* 22 */
	"Hidden IFS: HPFS",			/* 23 */
	"AST SmartSleep Partition",		/* 24 */
	"Unused/Willowtech Photon",		/* 25 */
	"Unknown",				/* 26 */
	"Hidden FAT32",				/* 27 */
	"Hidden FAT32(LBA)",			/* 28 */
	"Unused",				/* 29 */
	"Hidden FAT16(LBA)",			/* 30 */
	"Unknown",				/* 31 */
	"Unused/OSF1",				/* 32 */
	"Reserved/FSo2(Oxygen FS)",		/* 33 */
	"Unused/(Oxygen EXT)",			/* 34 */
	"Reserved",				/* 35 */
	"NEC DOS 3.x",				/* 36 */
	"Unknown",				/* 37 */
	"Reserved",				/* 38 */
	"Unknown",				/* 39 */
	"Unknown",				/* 40 */
	"Unknown",				/* 41 */
	"AtheOS File System",			/* 42 */
	"SyllableSecure",			/* 43 */
	"Unknown",				/* 44 */
	"Unknown",				/* 45 */
	"Unknown",				/* 46 */
	"Unknown",				/* 47 */
	"Unknown",				/* 48 */
	"Reserved",				/* 49 */
	"NOS",					/* 50 */
	"Reserved",				/* 51 */
	"Reserved",				/* 52 */
	"JFS on OS/2",				/* 53 */
	"Reserved",				/* 54 */
	"Unknown",				/* 55 */
	"THEOS 3.2 2GB",			/* 56 */
	"Plan9/THEOS 4",			/* 57 */
	"THEOS 4 4GB",				/* 58 */
	"THEOS 4 Extended",			/* 59 */
	"PartitionMagic Recovery",		/* 60 */
	"Hidden NetWare",			/* 61 */
	"Unknown",				/* 62 */
	"Unknown",				/* 63 */
	"Venix 80286",				/* 64 */
	"MINIX/PPC PReP Boot",			/* 65 */
	"Win2K Dynamic Disk/SFS(DOS)",		/* 66 */
	"Linux+DRDOS shared",			/* 67 */
	"GoBack partition",			/* 68 */
	"Boot-US boot manager",			/* 69 */
	"EUMEL/Elan",				/* 70 */
	"EUMEL/Elan",				/* 71 */
	"EUMEL/Elan",				/* 72 */
	"Unknown",				/* 73 */
	"ALFS/THIN FS for DOS",			/* 74 */
	"Unknown",				/* 75 */
	"Oberon partition",			/* 76 */
	"QNX 4,x",				/* 77 */
	"QNX 4,x 2nd Part",			/* 78 */
	"QNX 4,x 3rd Part",			/* 79 */
	"OnTrack DM R/O, Lynx RTOS",		/* 80 */
	"OnTrack DM R/W, Novell",		/* 81 */
	"CP/M",					/* 82 */
	"Disk Manager 6.0 Aux3",		/* 83 */
	"Disk Manager 6.0 DDO",			/* 84 */
	"EZ-Drive",				/* 85 */
	"Golden Bow VFeature/AT&T MS-DOS",	/* 86 */
	"DrivePro",				/* 87 */
	"Unknown",				/* 88 */
	"Unknown",				/* 89 */
	"Unknown",				/* 90 */
	"Unknown",				/* 91 */
	"Priam EDisk",				/* 92 */
	"Unknown",				/* 93 */
	"Unknown",				/* 94 */
	"Unknown",				/* 95 */
	"Unknown",				/* 96 */
	"SpeedStor",				/* 97 */
	"Unknown",				/* 98 */
	"Unix SysV, Mach, GNU Hurd",		/* 99 */
	"PC-ARMOUR, Netware 286",		/* 100 */
	"Netware 386",				/* 101 */
	"Netware SMS",				/* 102 */
	"Novell",				/* 103 */
	"Novell",				/* 104 */
	"Netware NSS",				/* 105 */
	"Unknown",				/* 106 */
	"Unknown",				/* 107 */
	"Unknown",				/* 108 */
	"Unknown",				/* 109 */
	"Unknown",				/* 110 */
	"Unknown",				/* 111 */
	"DiskSecure Multi-Boot",		/* 112 */
	"Reserved",				/* 113 */
	"Unknown",				/* 114 */
	"Reserved",				/* 115 */
	"Scramdisk partition",			/* 116 */
	"IBM PC/IX",				/* 117 */
	"Reserved",				/* 118 */
	"M2FS/M2CS,Netware VNDI",		/* 119 */
	"XOSL FS",				/* 120 */
	"Unknown",				/* 121 */
	"Unknown",				/* 122 */
	"Unknown",				/* 123 */
	"Unknown",				/* 124 */
	"Unknown",				/* 125 */
	"Unused",				/* 126 */
	"Unused",				/* 127 */
	"MINIX until 1.4a",			/* 128 */
	"MINIX since 1.4b, early Linux",	/* 129 */
	"Solaris/Linux swap",			/* 130 */
	"Linux native",				/* 131 */
	"OS/2 hidden,Win Hibernation",		/* 132 */
	"Linux extended",			/* 133 */
	"Old Linux RAID,NT FAT16 RAID",		/* 134 */
	"NTFS volume set",			/* 135 */
	"Linux plaintext part table",		/* 136 */
	"Unknown",				/* 137 */
	"Linux Kernel Partition",		/* 138 */
	"Fault Tolerant FAT32 volume",		/* 139 */
	"Fault Tolerant FAT32 volume",		/* 140 */
	"Free FDISK hidden PDOS FAT12",		/* 141 */
	"Linux LVM partition",			/* 142 */
	"Unknown",				/* 143 */
	"Free FDISK hidden PDOS FAT16",		/* 144 */
	"Free FDISK hidden DOS EXT",		/* 145 */
	"Free FDISK hidden FAT16 Large",	/* 146 */
	"Hidden Linux native, Amoeba",		/* 147 */
	"Amoeba Bad Block Table",		/* 148 */
	"MIT EXOPC Native",			/* 149 */
	"Unknown",				/* 150 */
	"Free FDISK hidden PDOS FAT32",		/* 151 */
	"Free FDISK hidden FAT32 LBA",		/* 152 */
	"DCE376 logical drive",			/* 153 */
	"Free FDISK hidden FAT16 LBA",		/* 154 */
	"Free FDISK hidden DOS EXT",		/* 155 */
	"Unknown",				/* 156 */
	"Unknown",				/* 157 */
	"Unknown",				/* 158 */
	"BSD/OS",				/* 159 */
	"Laptop hibernation",			/* 160 */
	"Laptop hibernate,HP SpeedStor",	/* 161 */
	"Unknown",				/* 162 */
	"HP SpeedStor",				/* 163 */
	"HP SpeedStor",				/* 164 */
	"BSD/386,386BSD,NetBSD,FreeBSD",	/* 165 */
	"OpenBSD,HP SpeedStor",			/* 166 */
	"NeXTStep",				/* 167 */
	"Mac OS-X",				/* 168 */
	"NetBSD",				/* 169 */
	"Olivetti FAT12 1.44MB Service",	/* 170 */
	"Mac OS-X Boot",			/* 171 */
	"Unknown",				/* 172 */
	"Unknown",				/* 173 */
	"ShagOS filesystem",			/* 174 */
	"ShagOS swap",				/* 175 */
	"BootStar Dummy",			/* 176 */
	"HP SpeedStor",				/* 177 */
	"Unknown",				/* 178 */
	"HP SpeedStor",				/* 179 */
	"HP SpeedStor",				/* 180 */
	"Unknown",				/* 181 */
	"Corrupted FAT16 NT Mirror Set",	/* 182 */
	"Corrupted NTFS NT Mirror Set",		/* 183 */
	"Old BSDI BSD/386 swap",		/* 184 */
	"Unknown",				/* 185 */
	"Unknown",				/* 186 */
	"Boot Wizard hidden",			/* 187 */
	"Unknown",				/* 188 */
	"Unknown",				/* 189 */
	"Solaris x86 boot",			/* 190 */
	"Solaris2",				/* 191 */
	"REAL/32 or Novell DOS secured",	/* 192 */
	"DRDOS/secured(FAT12)",			/* 193 */
	"Hidden Linux",				/* 194 */
	"Hidden Linux swap",			/* 195 */
	"DRDOS/secured(FAT16,< 32M)",		/* 196 */
	"DRDOS/secured(Extended)",		/* 197 */
	"NT corrupted FAT16 volume",		/* 198 */
	"NT corrupted NTFS volume",		/* 199 */
	"DRDOS8.0+",				/* 200 */
	"DRDOS8.0+",				/* 201 */
	"DRDOS8.0+",				/* 202 */
	"DRDOS7.04+ secured FAT32(CHS)",	/* 203 */
	"DRDOS7.04+ secured FAT32(LBA)",	/* 204 */
	"CTOS Memdump",				/* 205 */
	"DRDOS7.04+ FAT16X(LBA)",		/* 206 */
	"DRDOS7.04+ secure EXT DOS(LBA)",	/* 207 */
	"REAL/32 secure big, MDOS",		/* 208 */
	"Old MDOS secure FAT12",		/* 209 */
	"Unknown",				/* 210 */
	"Unknown",				/* 211 */
	"Old MDOS secure FAT16 <32M",		/* 212 */
	"Old MDOS secure EXT",			/* 213 */
	"Old MDOS secure FAT16 >=32M",		/* 214 */
	"Unknown",				/* 215 */
	"CP/M-86",				/* 216 */
	"Unknown",				/* 217 */
	"Non-FS Data",				/* 218 */
	"CP/M,Concurrent DOS,CTOS",		/* 219 */
	"Unknown",				/* 220 */
	"Hidden CTOS memdump",			/* 221 */
	"Dell PowerEdge utilities(FAT)",	/* 222 */
	"DG/UX virtual disk manager",		/* 223 */
	"ST AVFS(STMicroelectronics)",		/* 224 */
	"SpeedStor 12-bit FAT EXT",		/* 225 */
	"Unknown",				/* 226 */
	"SpeedStor",				/* 227 */
	"SpeedStor 16-bit FAT EXT",		/* 228 */
	"Tandy MSDOS",				/* 229 */
	"Storage Dimensions SpeedStor",		/* 230 */
	"Unknown",				/* 231 */
	"Unknown",				/* 232 */
	"Unknown",				/* 233 */
	"Unknown",				/* 234 */
	"BeOS BFS",				/* 235 */
	"SkyOS SkyFS",				/* 236 */
	"Unused",				/* 237 */
	"EFI Header Indicator",			/* 238 */
	"EFI Filesystem",			/* 239 */
	"Linux/PA-RISC boot loader",		/* 240 */
	"SpeedStor",				/* 241 */
	"DOS 3.3+ secondary",			/* 242 */
	"SpeedStor Reserved",			/* 243 */
	"SpeedStor Large",			/* 244 */
	"Prologue multi-volume",		/* 245 */
	"SpeedStor",				/* 246 */
	"Unused",				/* 247 */
	"Unknown",				/* 248 */
	"pCache",				/* 249 */
	"Bochs",				/* 250 */
	"VMware File System",			/* 251 */
	"VMware swap",				/* 252 */
	"Linux raid autodetect",		/* 253 */
	"NT Disk Administrator hidden",		/* 254 */
	"Xenix Bad Block Table"			/* 255 */
};

/* Allowed extended partition menu options */
static char ext_part_menu_opts[] = "adhipr";

/*
 * Structure holding all information about the extended partition
 * NOTE : As of now, there will be just one instance of ext_part_t, since most
 * known systems allow only one extended dos partition per disk.
 */
static ext_part_t *epp;
#endif

static void update_disk_and_exit(boolean_t table_changed);
int main(int argc, char *argv[]);
static int read_geom(char *sgeom);
static void dev_mboot_read(void);
static void dev_mboot_write(off_t sect, char *buff, int bootsiz);
static void mboot_read(void);
static void fill_patt(void);
static void abs_read(void);
static void abs_write(void);
static void load(int funct, char *file);
static void Set_Table_CHS_Values(int ti);
static int nopartdefined();
static int insert_tbl(int id, int act,
    int bhead, int bsect, int bcyl,
    int ehead, int esect, int ecyl,
    uint32_t rsect, uint32_t numsect, int startindex);
static int entry_from_old_table(int id, int act,
    int bhead, int bsect, int bcyl,
    int ehead, int esect, int ecyl,
    uint32_t rsect, uint32_t numsect, int startindex);
static int verify_tbl(void);
static int pars_fdisk(char *line,
    int *id, int *act,
    int *bhead, int *bsect, int *bcyl,
    int *ehead, int *esect, int *ecyl,
    uint32_t *rsect, uint32_t *numsect);
static int validate_part(int id, uint32_t rsect, uint32_t numsect);
static void stage0(void);
static int pcreate(void);
static int specify(uchar_t tsystid);
static void dispmenu(void);
static int pchange(void);
static int ppartid(void);
static char pdelete(void);
static void rm_blanks(char *s);
static int getcyl(void);
static void disptbl(void);
static void print_Table(void);
static void copy_Table_to_Old_Table(void);
static void nulltbl(void);
static void copy_Bootblk_to_Table(void);
static void fill_ipart(char *bootptr, struct ipart *partp);
#ifdef sparc
uchar_t getbyte(char **bp);
uint32_t getlong(char **bp);
#endif
static void copy_Table_to_Bootblk(void);
static int TableChanged(void);
static void ffile_write(char *file);
static void fix_slice(void);
static int yesno(void);
static int readvtoc(void);
static int writevtoc(void);
static int efi_ioctl(int fd, int cmd, dk_efi_t *dk_ioc);
static int clear_efi(void);
static void clear_vtoc(int table, int part);
static int lecture_and_query(char *warning, char *devname);
static void sanity_check_provided_device(char *devname, int fd);
static char *get_node(char *devname);
static int efi_create(void);

#ifdef i386
static void id_to_name(uchar_t sysid, char *buffer);
static void ext_read_input(char *buf);
static int ext_read_options(char *buf);
static int ext_invalid_option(char ch);
static void ext_read_valid_part_num(int *pno);
static void ext_read_valid_part_id(uchar_t *partid);
static int ext_read_valid_partition_start(uint32_t *begsec);
static void ext_read_valid_partition_size(uint32_t begsec, uint32_t *endsec);
static void ext_part_menu();
static void add_logical_drive();
static void delete_logical_drive();
static void ext_print_help_menu();
static void ext_change_logical_drive_id();
static void ext_print_part_types();
static void ext_print_logical_drive_layout();
static void preach_and_continue();
#ifdef DEBUG
static void ext_print_logdrive_layout_debug();
#endif	/* DEBUG */
#endif	/* i386 */

/*
 * This function is called only during the non-interactive mode.
 * It is touchy and does not tolerate any errors. If there are
 * mounted logical drives, changes to the partition table
 * are disallowed.
 */
static void
update_disk_and_exit(boolean_t table_changed)
{
#ifdef i386
	int rval;
#endif
	if (table_changed) {
		/*
		 * Copy the new table back to the sector buffer
		 * and write it to disk
		 */
		copy_Table_to_Bootblk();
		dev_mboot_write(0, Bootsect, sectsiz);
	}

	/* If the VTOC table is wrong fix it (truncation only) */
	if (io_adjt)
		fix_slice();

#ifdef i386
	if (!io_readonly) {
		rval = fdisk_commit_ext_part(epp);
		switch (rval) {
			case FDISK_SUCCESS:
				/* Success */
				break;
			case FDISK_ENOEXTPART:
				/* Nothing to do */
				break;
			default:
				(void) fprintf(stderr, "Error in"
				    " fdisk_commit_ext_part\n");
				exit(rval);
		}
	}
	libfdisk_fini(&epp);
#endif
	exit(0);
}

/*
 * main
 * Process command-line options.
 */
int
main(int argc, char *argv[])
{
	int c, i;
	extern	int optind;
	extern	char *optarg;
	int	errflg = 0;
	int	diag_cnt = 0;
	int openmode;
#ifdef i386