[1770] | 1 | /* vi: set sw=4 ts=4: */
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[821] | 2 | /* fdisk.c -- Partition table manipulator for Linux.
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| 3 | *
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| 4 | * Copyright (C) 1992 A. V. Le Blanc (LeBlanc@mcc.ac.uk)
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| 5 | * Copyright (C) 2001,2002 Vladimir Oleynik <dzo@simtreas.ru> (initial bb port)
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| 6 | *
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| 7 | * Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
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| 8 | */
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| 9 |
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[1770] | 10 | #ifndef _LARGEFILE64_SOURCE
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| 11 | /* For lseek64 */
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| 12 | #define _LARGEFILE64_SOURCE
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| 13 | #endif
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[821] | 14 | #include <assert.h> /* assert */
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[1770] | 15 | #include "libbb.h"
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[821] | 16 |
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[1770] | 17 | /* Looks like someone forgot to add this to config system */
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| 18 | #ifndef ENABLE_FEATURE_FDISK_BLKSIZE
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| 19 | # define ENABLE_FEATURE_FDISK_BLKSIZE 0
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| 20 | # define USE_FEATURE_FDISK_BLKSIZE(a)
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| 21 | #endif
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[821] | 22 |
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| 23 | #define DEFAULT_SECTOR_SIZE 512
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| 24 | #define MAX_SECTOR_SIZE 2048
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[1770] | 25 | #define SECTOR_SIZE 512 /* still used in osf/sgi/sun code */
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[821] | 26 | #define MAXIMUM_PARTS 60
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| 27 |
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| 28 | #define ACTIVE_FLAG 0x80
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| 29 |
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| 30 | #define EXTENDED 0x05
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| 31 | #define WIN98_EXTENDED 0x0f
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| 32 | #define LINUX_PARTITION 0x81
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| 33 | #define LINUX_SWAP 0x82
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| 34 | #define LINUX_NATIVE 0x83
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| 35 | #define LINUX_EXTENDED 0x85
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| 36 | #define LINUX_LVM 0x8e
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| 37 | #define LINUX_RAID 0xfd
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| 38 |
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[1770] | 39 | /* Used for sector numbers. Today's disk sizes make it necessary */
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| 40 | typedef unsigned long long ullong;
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[821] | 41 |
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| 42 | struct hd_geometry {
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| 43 | unsigned char heads;
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| 44 | unsigned char sectors;
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| 45 | unsigned short cylinders;
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| 46 | unsigned long start;
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| 47 | };
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| 48 |
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[1770] | 49 | #define HDIO_GETGEO 0x0301 /* get device geometry */
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[821] | 50 |
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[1770] | 51 | static const char msg_building_new_label[] ALIGN1 =
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| 52 | "Building a new %s. Changes will remain in memory only,\n"
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| 53 | "until you decide to write them. After that the previous content\n"
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| 54 | "won't be recoverable.\n\n";
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[821] | 55 |
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[1770] | 56 | static const char msg_part_already_defined[] ALIGN1 =
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| 57 | "Partition %d is already defined, delete it before re-adding\n";
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[821] | 58 |
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| 59 |
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[1770] | 60 | static unsigned sector_size = DEFAULT_SECTOR_SIZE;
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| 61 | static unsigned user_set_sector_size;
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| 62 | static unsigned sector_offset = 1;
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[821] | 63 |
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[1770] | 64 | #if ENABLE_FEATURE_OSF_LABEL
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[821] | 65 | static int possibly_osf_label;
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| 66 | #endif
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| 67 |
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[1770] | 68 | static unsigned heads, sectors, cylinders;
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[821] | 69 | static void update_units(void);
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| 70 |
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| 71 |
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| 72 | struct partition {
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| 73 | unsigned char boot_ind; /* 0x80 - active */
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| 74 | unsigned char head; /* starting head */
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| 75 | unsigned char sector; /* starting sector */
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| 76 | unsigned char cyl; /* starting cylinder */
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| 77 | unsigned char sys_ind; /* What partition type */
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| 78 | unsigned char end_head; /* end head */
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| 79 | unsigned char end_sector; /* end sector */
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| 80 | unsigned char end_cyl; /* end cylinder */
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| 81 | unsigned char start4[4]; /* starting sector counting from 0 */
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| 82 | unsigned char size4[4]; /* nr of sectors in partition */
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| 83 | } ATTRIBUTE_PACKED;
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| 84 |
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[1770] | 85 | static const char unable_to_open[] ALIGN1 = "cannot open %s";
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| 86 | static const char unable_to_read[] ALIGN1 = "cannot read from %s";
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| 87 | static const char unable_to_seek[] ALIGN1 = "cannot seek on %s";
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| 88 | static const char unable_to_write[] ALIGN1 = "cannot write to %s";
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| 89 | static const char ioctl_error[] ALIGN1 = "BLKGETSIZE ioctl failed on %s";
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| 90 | static void fdisk_fatal(const char *why) ATTRIBUTE_NORETURN;
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[821] | 91 |
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[1770] | 92 | enum label_type {
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[821] | 93 | label_dos, label_sun, label_sgi, label_aix, label_osf
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| 94 | };
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| 95 |
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[1770] | 96 | #define LABEL_IS_DOS (label_dos == current_label_type)
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| 97 |
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| 98 | #if ENABLE_FEATURE_SUN_LABEL
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| 99 | #define LABEL_IS_SUN (label_sun == current_label_type)
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| 100 | #define STATIC_SUN static
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| 101 | #else
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| 102 | #define LABEL_IS_SUN 0
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| 103 | #define STATIC_SUN extern
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| 104 | #endif
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| 105 |
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| 106 | #if ENABLE_FEATURE_SGI_LABEL
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| 107 | #define LABEL_IS_SGI (label_sgi == current_label_type)
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| 108 | #define STATIC_SGI static
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| 109 | #else
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| 110 | #define LABEL_IS_SGI 0
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| 111 | #define STATIC_SGI extern
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| 112 | #endif
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| 113 |
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| 114 | #if ENABLE_FEATURE_AIX_LABEL
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| 115 | #define LABEL_IS_AIX (label_aix == current_label_type)
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| 116 | #define STATIC_AIX static
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| 117 | #else
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| 118 | #define LABEL_IS_AIX 0
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| 119 | #define STATIC_AIX extern
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| 120 | #endif
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| 121 |
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| 122 | #if ENABLE_FEATURE_OSF_LABEL
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| 123 | #define LABEL_IS_OSF (label_osf == current_label_type)
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| 124 | #define STATIC_OSF static
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| 125 | #else
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| 126 | #define LABEL_IS_OSF 0
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| 127 | #define STATIC_OSF extern
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| 128 | #endif
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| 129 |
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[821] | 130 | enum action { fdisk, require, try_only, create_empty_dos, create_empty_sun };
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| 131 |
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| 132 | static enum label_type current_label_type;
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| 133 |
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| 134 | static const char *disk_device;
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| 135 | static int fd; /* the disk */
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| 136 | static int partitions = 4; /* maximum partition + 1 */
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[1770] | 137 | static int display_in_cyl_units = 1;
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| 138 | static unsigned units_per_sector = 1;
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| 139 | #if ENABLE_FEATURE_FDISK_WRITABLE
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[821] | 140 | static void change_units(void);
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| 141 | static void reread_partition_table(int leave);
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| 142 | static void delete_partition(int i);
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| 143 | static int get_partition(int warn, int max);
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[1770] | 144 | static void list_types(const char *const *sys);
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| 145 | static unsigned read_int(unsigned low, unsigned dflt, unsigned high, unsigned base, const char *mesg);
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[821] | 146 | #endif
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| 147 | static const char *partition_type(unsigned char type);
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| 148 | static void get_geometry(void);
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| 149 | static int get_boot(enum action what);
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| 150 |
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| 151 | #define PLURAL 0
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| 152 | #define SINGULAR 1
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| 153 |
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[1770] | 154 | static unsigned get_start_sect(const struct partition *p);
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| 155 | static unsigned get_nr_sects(const struct partition *p);
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[821] | 156 |
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| 157 | /*
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| 158 | * per partition table entry data
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| 159 | *
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| 160 | * The four primary partitions have the same sectorbuffer (MBRbuffer)
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| 161 | * and have NULL ext_pointer.
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| 162 | * Each logical partition table entry has two pointers, one for the
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| 163 | * partition and one link to the next one.
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| 164 | */
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[1770] | 165 | struct pte {
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[821] | 166 | struct partition *part_table; /* points into sectorbuffer */
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| 167 | struct partition *ext_pointer; /* points into sectorbuffer */
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[1770] | 168 | ullong offset; /* disk sector number */
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| 169 | char *sectorbuffer; /* disk sector contents */
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| 170 | #if ENABLE_FEATURE_FDISK_WRITABLE
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[821] | 171 | char changed; /* boolean */
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| 172 | #endif
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[1770] | 173 | };
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[821] | 174 |
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[1770] | 175 | /* DOS partition types */
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[821] | 176 |
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[1770] | 177 | static const char *const i386_sys_types[] = {
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| 178 | "\x00" "Empty",
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| 179 | "\x01" "FAT12",
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| 180 | "\x04" "FAT16 <32M",
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| 181 | "\x05" "Extended", /* DOS 3.3+ extended partition */
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| 182 | "\x06" "FAT16", /* DOS 16-bit >=32M */
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| 183 | "\x07" "HPFS/NTFS", /* OS/2 IFS, eg, HPFS or NTFS or QNX */
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| 184 | "\x0a" "OS/2 Boot Manager",/* OS/2 Boot Manager */
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| 185 | "\x0b" "Win95 FAT32",
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| 186 | "\x0c" "Win95 FAT32 (LBA)",/* LBA really is 'Extended Int 13h' */
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| 187 | "\x0e" "Win95 FAT16 (LBA)",
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| 188 | "\x0f" "Win95 Ext'd (LBA)",
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| 189 | "\x11" "Hidden FAT12",
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| 190 | "\x12" "Compaq diagnostics",
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| 191 | "\x14" "Hidden FAT16 <32M",
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| 192 | "\x16" "Hidden FAT16",
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| 193 | "\x17" "Hidden HPFS/NTFS",
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| 194 | "\x1b" "Hidden Win95 FAT32",
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| 195 | "\x1c" "Hidden W95 FAT32 (LBA)",
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| 196 | "\x1e" "Hidden W95 FAT16 (LBA)",
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| 197 | "\x3c" "Part.Magic recovery",
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| 198 | "\x41" "PPC PReP Boot",
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| 199 | "\x42" "SFS",
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| 200 | "\x63" "GNU HURD or SysV", /* GNU HURD or Mach or Sys V/386 (such as ISC UNIX) */
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| 201 | "\x80" "Old Minix", /* Minix 1.4a and earlier */
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| 202 | "\x81" "Minix / old Linux",/* Minix 1.4b and later */
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| 203 | "\x82" "Linux swap", /* also Solaris */
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| 204 | "\x83" "Linux",
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| 205 | "\x84" "OS/2 hidden C: drive",
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| 206 | "\x85" "Linux extended",
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| 207 | "\x86" "NTFS volume set",
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| 208 | "\x87" "NTFS volume set",
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| 209 | "\x8e" "Linux LVM",
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| 210 | "\x9f" "BSD/OS", /* BSDI */
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| 211 | "\xa0" "Thinkpad hibernation",
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| 212 | "\xa5" "FreeBSD", /* various BSD flavours */
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| 213 | "\xa6" "OpenBSD",
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| 214 | "\xa8" "Darwin UFS",
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| 215 | "\xa9" "NetBSD",
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| 216 | "\xab" "Darwin boot",
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| 217 | "\xb7" "BSDI fs",
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| 218 | "\xb8" "BSDI swap",
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| 219 | "\xbe" "Solaris boot",
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| 220 | "\xeb" "BeOS fs",
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| 221 | "\xee" "EFI GPT", /* Intel EFI GUID Partition Table */
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| 222 | "\xef" "EFI (FAT-12/16/32)", /* Intel EFI System Partition */
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| 223 | "\xf0" "Linux/PA-RISC boot", /* Linux/PA-RISC boot loader */
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| 224 | "\xf2" "DOS secondary", /* DOS 3.3+ secondary */
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| 225 | "\xfd" "Linux raid autodetect", /* New (2.2.x) raid partition with
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| 226 | autodetect using persistent
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| 227 | superblock */
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| 228 | #if 0 /* ENABLE_WEIRD_PARTITION_TYPES */
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| 229 | "\x02" "XENIX root",
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| 230 | "\x03" "XENIX usr",
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| 231 | "\x08" "AIX", /* AIX boot (AIX -- PS/2 port) or SplitDrive */
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| 232 | "\x09" "AIX bootable", /* AIX data or Coherent */
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| 233 | "\x10" "OPUS",
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| 234 | "\x18" "AST SmartSleep",
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| 235 | "\x24" "NEC DOS",
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| 236 | "\x39" "Plan 9",
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| 237 | "\x40" "Venix 80286",
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| 238 | "\x4d" "QNX4.x",
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| 239 | "\x4e" "QNX4.x 2nd part",
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| 240 | "\x4f" "QNX4.x 3rd part",
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| 241 | "\x50" "OnTrack DM",
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| 242 | "\x51" "OnTrack DM6 Aux1", /* (or Novell) */
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| 243 | "\x52" "CP/M", /* CP/M or Microport SysV/AT */
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| 244 | "\x53" "OnTrack DM6 Aux3",
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| 245 | "\x54" "OnTrackDM6",
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| 246 | "\x55" "EZ-Drive",
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| 247 | "\x56" "Golden Bow",
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| 248 | "\x5c" "Priam Edisk",
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| 249 | "\x61" "SpeedStor",
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| 250 | "\x64" "Novell Netware 286",
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| 251 | "\x65" "Novell Netware 386",
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| 252 | "\x70" "DiskSecure Multi-Boot",
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| 253 | "\x75" "PC/IX",
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| 254 | "\x93" "Amoeba",
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| 255 | "\x94" "Amoeba BBT", /* (bad block table) */
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| 256 | "\xa7" "NeXTSTEP",
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| 257 | "\xbb" "Boot Wizard hidden",
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| 258 | "\xc1" "DRDOS/sec (FAT-12)",
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| 259 | "\xc4" "DRDOS/sec (FAT-16 < 32M)",
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| 260 | "\xc6" "DRDOS/sec (FAT-16)",
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| 261 | "\xc7" "Syrinx",
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| 262 | "\xda" "Non-FS data",
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| 263 | "\xdb" "CP/M / CTOS / ...",/* CP/M or Concurrent CP/M or
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| 264 | Concurrent DOS or CTOS */
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| 265 | "\xde" "Dell Utility", /* Dell PowerEdge Server utilities */
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| 266 | "\xdf" "BootIt", /* BootIt EMBRM */
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| 267 | "\xe1" "DOS access", /* DOS access or SpeedStor 12-bit FAT
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| 268 | extended partition */
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| 269 | "\xe3" "DOS R/O", /* DOS R/O or SpeedStor */
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| 270 | "\xe4" "SpeedStor", /* SpeedStor 16-bit FAT extended
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| 271 | partition < 1024 cyl. */
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| 272 | "\xf1" "SpeedStor",
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| 273 | "\xf4" "SpeedStor", /* SpeedStor large partition */
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| 274 | "\xfe" "LANstep", /* SpeedStor >1024 cyl. or LANstep */
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| 275 | "\xff" "BBT", /* Xenix Bad Block Table */
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| 276 | #endif
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| 277 | NULL
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| 278 | };
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| 279 |
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| 280 |
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| 281 | /* Globals */
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| 282 |
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| 283 | struct globals {
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| 284 | char *line_ptr;
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| 285 | char line_buffer[80];
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| 286 | char partname_buffer[80];
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| 287 | jmp_buf listingbuf;
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| 288 | /* Raw disk label. For DOS-type partition tables the MBR,
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| 289 | * with descriptions of the primary partitions. */
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| 290 | char MBRbuffer[MAX_SECTOR_SIZE];
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| 291 | /* Partition tables */
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| 292 | struct pte ptes[MAXIMUM_PARTS];
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| 293 | };
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| 294 | /* bb_common_bufsiz1 is too small for this on 64 bit CPUs */
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| 295 | #define G (*ptr_to_globals)
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| 296 |
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| 297 | #define line_ptr (G.line_ptr)
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| 298 | #define listingbuf (G.listingbuf)
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| 299 | #define line_buffer (G.line_buffer)
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| 300 | #define partname_buffer (G.partname_buffer)
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| 301 | #define MBRbuffer (G.MBRbuffer)
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| 302 | #define ptes (G.ptes)
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| 303 |
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| 304 |
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| 305 | /* Code */
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| 306 |
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| 307 | #define IS_EXTENDED(i) \
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| 308 | ((i) == EXTENDED || (i) == WIN98_EXTENDED || (i) == LINUX_EXTENDED)
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| 309 |
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| 310 | #define cround(n) (display_in_cyl_units ? ((n)/units_per_sector)+1 : (n))
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| 311 |
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| 312 | #define scround(x) (((x)+units_per_sector-1)/units_per_sector)
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| 313 |
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| 314 | #define pt_offset(b, n) \
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| 315 | ((struct partition *)((b) + 0x1be + (n) * sizeof(struct partition)))
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| 316 |
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| 317 | #define sector(s) ((s) & 0x3f)
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| 318 |
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| 319 | #define cylinder(s, c) ((c) | (((s) & 0xc0) << 2))
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| 320 |
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| 321 | #define hsc2sector(h,s,c) \
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| 322 | (sector(s) - 1 + sectors * ((h) + heads * cylinder(s,c)))
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| 323 |
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| 324 | #define set_hsc(h,s,c,sector) \
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| 325 | do { \
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| 326 | s = sector % sectors + 1; \
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| 327 | sector /= sectors; \
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| 328 | h = sector % heads; \
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| 329 | sector /= heads; \
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| 330 | c = sector & 0xff; \
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| 331 | s |= (sector >> 2) & 0xc0; \
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| 332 | } while (0)
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| 333 |
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| 334 | #if ENABLE_FEATURE_FDISK_WRITABLE
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| 335 | /* read line; return 0 or first printable char */
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| 336 | static int
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| 337 | read_line(const char *prompt)
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| 338 | {
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| 339 | int sz;
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| 340 |
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| 341 | sz = read_line_input(prompt, line_buffer, sizeof(line_buffer), NULL);
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| 342 | if (sz <= 0)
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| 343 | exit(0); /* Ctrl-D or Ctrl-C */
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| 344 |
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| 345 | if (line_buffer[sz-1] == '\n')
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| 346 | line_buffer[--sz] = '\0';
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| 347 |
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| 348 | line_ptr = line_buffer;
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| 349 | while (*line_ptr && !isgraph(*line_ptr))
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| 350 | line_ptr++;
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| 351 | return *line_ptr;
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| 352 | }
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| 353 | #endif
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| 354 |
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| 355 | /*
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| 356 | * return partition name - uses static storage
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| 357 | */
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| 358 | static const char *
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| 359 | partname(const char *dev, int pno, int lth)
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| 360 | {
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| 361 | const char *p;
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| 362 | int w, wp;
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| 363 | int bufsiz;
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| 364 | char *bufp;
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| 365 |
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| 366 | bufp = partname_buffer;
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| 367 | bufsiz = sizeof(partname_buffer);
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| 368 |
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| 369 | w = strlen(dev);
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| 370 | p = "";
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| 371 |
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| 372 | if (isdigit(dev[w-1]))
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| 373 | p = "p";
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| 374 |
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| 375 | /* devfs kludge - note: fdisk partition names are not supposed
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| 376 | to equal kernel names, so there is no reason to do this */
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| 377 | if (strcmp(dev + w - 4, "disc") == 0) {
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| 378 | w -= 4;
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| 379 | p = "part";
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| 380 | }
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| 381 |
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| 382 | wp = strlen(p);
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| 383 |
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| 384 | if (lth) {
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| 385 | snprintf(bufp, bufsiz, "%*.*s%s%-2u",
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| 386 | lth-wp-2, w, dev, p, pno);
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| 387 | } else {
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| 388 | snprintf(bufp, bufsiz, "%.*s%s%-2u", w, dev, p, pno);
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| 389 | }
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| 390 | return bufp;
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| 391 | }
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| 392 |
|
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| 393 | #if ENABLE_FEATURE_FDISK_WRITABLE
|
---|
[821] | 394 | static void
|
---|
| 395 | set_all_unchanged(void)
|
---|
| 396 | {
|
---|
| 397 | int i;
|
---|
| 398 |
|
---|
| 399 | for (i = 0; i < MAXIMUM_PARTS; i++)
|
---|
| 400 | ptes[i].changed = 0;
|
---|
| 401 | }
|
---|
| 402 |
|
---|
[1770] | 403 | static ALWAYS_INLINE void
|
---|
[821] | 404 | set_changed(int i)
|
---|
| 405 | {
|
---|
| 406 | ptes[i].changed = 1;
|
---|
| 407 | }
|
---|
[1770] | 408 | #endif /* FEATURE_FDISK_WRITABLE */
|
---|
[821] | 409 |
|
---|
[1770] | 410 | static ALWAYS_INLINE struct partition *
|
---|
[821] | 411 | get_part_table(int i)
|
---|
| 412 | {
|
---|
| 413 | return ptes[i].part_table;
|
---|
| 414 | }
|
---|
| 415 |
|
---|
| 416 | static const char *
|
---|
| 417 | str_units(int n)
|
---|
| 418 | { /* n==1: use singular */
|
---|
| 419 | if (n == 1)
|
---|
[1770] | 420 | return display_in_cyl_units ? "cylinder" : "sector";
|
---|
| 421 | return display_in_cyl_units ? "cylinders" : "sectors";
|
---|
[821] | 422 | }
|
---|
| 423 |
|
---|
| 424 | static int
|
---|
[1770] | 425 | valid_part_table_flag(const char *mbuffer)
|
---|
| 426 | {
|
---|
| 427 | return (mbuffer[510] == 0x55 && (uint8_t)mbuffer[511] == 0xaa);
|
---|
[821] | 428 | }
|
---|
| 429 |
|
---|
[1770] | 430 | #if ENABLE_FEATURE_FDISK_WRITABLE
|
---|
| 431 | static ALWAYS_INLINE void
|
---|
| 432 | write_part_table_flag(char *b)
|
---|
[821] | 433 | {
|
---|
[1770] | 434 | b[510] = 0x55;
|
---|
| 435 | b[511] = 0xaa;
|
---|
[821] | 436 | }
|
---|
| 437 |
|
---|
| 438 | static char
|
---|
[1770] | 439 | read_nonempty(const char *mesg)
|
---|
[821] | 440 | {
|
---|
[1770] | 441 | while (!read_line(mesg)) /* repeat */;
|
---|
[821] | 442 | return *line_ptr;
|
---|
| 443 | }
|
---|
| 444 |
|
---|
| 445 | static char
|
---|
[1770] | 446 | read_maybe_empty(const char *mesg)
|
---|
[821] | 447 | {
|
---|
[1770] | 448 | if (!read_line(mesg)) {
|
---|
| 449 | line_ptr = line_buffer;
|
---|
| 450 | line_ptr[0] = '\n';
|
---|
| 451 | line_ptr[1] = '\0';
|
---|
[821] | 452 | }
|
---|
[1770] | 453 | return line_ptr[0];
|
---|
[821] | 454 | }
|
---|
| 455 |
|
---|
| 456 | static int
|
---|
[1770] | 457 | read_hex(const char *const *sys)
|
---|
[821] | 458 | {
|
---|
[1770] | 459 | unsigned long v;
|
---|
[821] | 460 | while (1) {
|
---|
[1770] | 461 | read_nonempty("Hex code (type L to list codes): ");
|
---|
| 462 | if (*line_ptr == 'l' || *line_ptr == 'L') {
|
---|
[821] | 463 | list_types(sys);
|
---|
[1770] | 464 | continue;
|
---|
[821] | 465 | }
|
---|
[1770] | 466 | v = bb_strtoul(line_ptr, NULL, 16);
|
---|
| 467 | if (v > 0xff)
|
---|
| 468 | /* Bad input also triggers this */
|
---|
| 469 | continue;
|
---|
| 470 | return v;
|
---|
[821] | 471 | }
|
---|
| 472 | }
|
---|
[1770] | 473 | #endif /* FEATURE_FDISK_WRITABLE */
|
---|
[821] | 474 |
|
---|
[1770] | 475 | #include "fdisk_aix.c"
|
---|
[821] | 476 |
|
---|
| 477 | typedef struct {
|
---|
| 478 | unsigned char info[128]; /* Informative text string */
|
---|
| 479 | unsigned char spare0[14];
|
---|
| 480 | struct sun_info {
|
---|
| 481 | unsigned char spare1;
|
---|
| 482 | unsigned char id;
|
---|
| 483 | unsigned char spare2;
|
---|
| 484 | unsigned char flags;
|
---|
| 485 | } infos[8];
|
---|
| 486 | unsigned char spare1[246]; /* Boot information etc. */
|
---|
| 487 | unsigned short rspeed; /* Disk rotational speed */
|
---|
| 488 | unsigned short pcylcount; /* Physical cylinder count */
|
---|
| 489 | unsigned short sparecyl; /* extra sects per cylinder */
|
---|
| 490 | unsigned char spare2[4]; /* More magic... */
|
---|
| 491 | unsigned short ilfact; /* Interleave factor */
|
---|
| 492 | unsigned short ncyl; /* Data cylinder count */
|
---|
| 493 | unsigned short nacyl; /* Alt. cylinder count */
|
---|
| 494 | unsigned short ntrks; /* Tracks per cylinder */
|
---|
| 495 | unsigned short nsect; /* Sectors per track */
|
---|
| 496 | unsigned char spare3[4]; /* Even more magic... */
|
---|
[1770] | 497 | struct sun_partinfo {
|
---|
[821] | 498 | uint32_t start_cylinder;
|
---|
| 499 | uint32_t num_sectors;
|
---|
| 500 | } partitions[8];
|
---|
| 501 | unsigned short magic; /* Magic number */
|
---|
| 502 | unsigned short csum; /* Label xor'd checksum */
|
---|
| 503 | } sun_partition;
|
---|
| 504 | #define sunlabel ((sun_partition *)MBRbuffer)
|
---|
[1770] | 505 | STATIC_OSF void bsd_select(void);
|
---|
| 506 | STATIC_OSF void xbsd_print_disklabel(int);
|
---|
| 507 | #include "fdisk_osf.c"
|
---|
[821] | 508 |
|
---|
[1770] | 509 | #if ENABLE_FEATURE_SGI_LABEL || ENABLE_FEATURE_SUN_LABEL
|
---|
| 510 | static uint16_t
|
---|
| 511 | fdisk_swap16(uint16_t x)
|
---|
[821] | 512 | {
|
---|
[1770] | 513 | return (x << 8) | (x >> 8);
|
---|
[821] | 514 | }
|
---|
| 515 |
|
---|
[1770] | 516 | static uint32_t
|
---|
| 517 | fdisk_swap32(uint32_t x)
|
---|
[821] | 518 | {
|
---|
[1770] | 519 | return (x << 24) |
|
---|
| 520 | ((x & 0xFF00) << 8) |
|
---|
| 521 | ((x & 0xFF0000) >> 8) |
|
---|
| 522 | (x >> 24);
|
---|
[821] | 523 | }
|
---|
| 524 | #endif
|
---|
| 525 |
|
---|
[1770] | 526 | STATIC_SGI const char *const sgi_sys_types[];
|
---|
| 527 | STATIC_SGI unsigned sgi_get_num_sectors(int i);
|
---|
| 528 | STATIC_SGI int sgi_get_sysid(int i);
|
---|
| 529 | STATIC_SGI void sgi_delete_partition(int i);
|
---|
| 530 | STATIC_SGI void sgi_change_sysid(int i, int sys);
|
---|
| 531 | STATIC_SGI void sgi_list_table(int xtra);
|
---|
| 532 | #if ENABLE_FEATURE_FDISK_ADVANCED
|
---|
| 533 | STATIC_SGI void sgi_set_xcyl(void);
|
---|
[821] | 534 | #endif
|
---|
[1770] | 535 | STATIC_SGI int verify_sgi(int verbose);
|
---|
| 536 | STATIC_SGI void sgi_add_partition(int n, int sys);
|
---|
| 537 | STATIC_SGI void sgi_set_swappartition(int i);
|
---|
| 538 | STATIC_SGI const char *sgi_get_bootfile(void);
|
---|
| 539 | STATIC_SGI void sgi_set_bootfile(const char* aFile);
|
---|
| 540 | STATIC_SGI void create_sgiinfo(void);
|
---|
| 541 | STATIC_SGI void sgi_write_table(void);
|
---|
| 542 | STATIC_SGI void sgi_set_bootpartition(int i);
|
---|
| 543 | #include "fdisk_sgi.c"
|
---|
[821] | 544 |
|
---|
[1770] | 545 | STATIC_SUN const char *const sun_sys_types[];
|
---|
| 546 | STATIC_SUN void sun_delete_partition(int i);
|
---|
| 547 | STATIC_SUN void sun_change_sysid(int i, int sys);
|
---|
| 548 | STATIC_SUN void sun_list_table(int xtra);
|
---|
| 549 | STATIC_SUN void add_sun_partition(int n, int sys);
|
---|
| 550 | #if ENABLE_FEATURE_FDISK_ADVANCED
|
---|
| 551 | STATIC_SUN void sun_set_alt_cyl(void);
|
---|
| 552 | STATIC_SUN void sun_set_ncyl(int cyl);
|
---|
| 553 | STATIC_SUN void sun_set_xcyl(void);
|
---|
| 554 | STATIC_SUN void sun_set_ilfact(void);
|
---|
| 555 | STATIC_SUN void sun_set_rspeed(void);
|
---|
| 556 | STATIC_SUN void sun_set_pcylcount(void);
|
---|
[821] | 557 | #endif
|
---|
[1770] | 558 | STATIC_SUN void toggle_sunflags(int i, unsigned char mask);
|
---|
| 559 | STATIC_SUN void verify_sun(void);
|
---|
| 560 | STATIC_SUN void sun_write_table(void);
|
---|
| 561 | #include "fdisk_sun.c"
|
---|
[821] | 562 |
|
---|
[1770] | 563 | #if ENABLE_FEATURE_FDISK_WRITABLE
|
---|
[821] | 564 | /* start_sect and nr_sects are stored little endian on all machines */
|
---|
| 565 | /* moreover, they are not aligned correctly */
|
---|
| 566 | static void
|
---|
[1770] | 567 | store4_little_endian(unsigned char *cp, unsigned val)
|
---|
[821] | 568 | {
|
---|
[1770] | 569 | cp[0] = val;
|
---|
| 570 | cp[1] = val >> 8;
|
---|
| 571 | cp[2] = val >> 16;
|
---|
| 572 | cp[3] = val >> 24;
|
---|
[821] | 573 | }
|
---|
[1770] | 574 | #endif /* FEATURE_FDISK_WRITABLE */
|
---|
[821] | 575 |
|
---|
[1770] | 576 | static unsigned
|
---|
[821] | 577 | read4_little_endian(const unsigned char *cp)
|
---|
| 578 | {
|
---|
[1770] | 579 | return cp[0] + (cp[1] << 8) + (cp[2] << 16) + (cp[3] << 24);
|
---|
[821] | 580 | }
|
---|
| 581 |
|
---|
[1770] | 582 | #if ENABLE_FEATURE_FDISK_WRITABLE
|
---|
[821] | 583 | static void
|
---|
[1770] | 584 | set_start_sect(struct partition *p, unsigned start_sect)
|
---|
[821] | 585 | {
|
---|
| 586 | store4_little_endian(p->start4, start_sect);
|
---|
| 587 | }
|
---|
| 588 | #endif
|
---|
| 589 |
|
---|
[1770] | 590 | static unsigned
|
---|
[821] | 591 | get_start_sect(const struct partition *p)
|
---|
| 592 | {
|
---|
| 593 | return read4_little_endian(p->start4);
|
---|
| 594 | }
|
---|
| 595 |
|
---|
[1770] | 596 | #if ENABLE_FEATURE_FDISK_WRITABLE
|
---|
[821] | 597 | static void
|
---|
[1770] | 598 | set_nr_sects(struct partition *p, unsigned nr_sects)
|
---|
[821] | 599 | {
|
---|
| 600 | store4_little_endian(p->size4, nr_sects);
|
---|
| 601 | }
|
---|
| 602 | #endif
|
---|
| 603 |
|
---|
[1770] | 604 | static unsigned
|
---|
[821] | 605 | get_nr_sects(const struct partition *p)
|
---|
| 606 | {
|
---|
| 607 | return read4_little_endian(p->size4);
|
---|
| 608 | }
|
---|
| 609 |
|
---|
| 610 | /* normally O_RDWR, -l option gives O_RDONLY */
|
---|
| 611 | static int type_open = O_RDWR;
|
---|
| 612 |
|
---|
| 613 | static int ext_index; /* the prime extended partition */
|
---|
[1770] | 614 | static int listing; /* no aborts for fdisk -l */
|
---|
[821] | 615 | static int dos_compatible_flag = ~0;
|
---|
[1770] | 616 | #if ENABLE_FEATURE_FDISK_WRITABLE
|
---|
[821] | 617 | static int dos_changed;
|
---|
| 618 | static int nowarn; /* no warnings for fdisk -l/-s */
|
---|
| 619 | #endif
|
---|
| 620 |
|
---|
[1770] | 621 | static unsigned user_cylinders, user_heads, user_sectors;
|
---|
| 622 | static unsigned pt_heads, pt_sectors;
|
---|
| 623 | static unsigned kern_heads, kern_sectors;
|
---|
[821] | 624 |
|
---|
[1770] | 625 | static ullong extended_offset; /* offset of link pointers */
|
---|
| 626 | static ullong total_number_of_sectors;
|
---|
[821] | 627 |
|
---|
[1770] | 628 | static void fdisk_fatal(const char *why)
|
---|
[821] | 629 | {
|
---|
| 630 | if (listing) {
|
---|
| 631 | close(fd);
|
---|
| 632 | longjmp(listingbuf, 1);
|
---|
| 633 | }
|
---|
[1770] | 634 | bb_error_msg_and_die(why, disk_device);
|
---|
[821] | 635 | }
|
---|
| 636 |
|
---|
| 637 | static void
|
---|
[1770] | 638 | seek_sector(ullong secno)
|
---|
[821] | 639 | {
|
---|
[1770] | 640 | secno *= sector_size;
|
---|
| 641 | #if ENABLE_FDISK_SUPPORT_LARGE_DISKS
|
---|
| 642 | if (lseek64(fd, (off64_t)secno, SEEK_SET) == (off64_t) -1)
|
---|
[821] | 643 | fdisk_fatal(unable_to_seek);
|
---|
[1770] | 644 | #else
|
---|
| 645 | if (secno > MAXINT(off_t)
|
---|
| 646 | || lseek(fd, (off_t)secno, SEEK_SET) == (off_t) -1
|
---|
| 647 | ) {
|
---|
| 648 | fdisk_fatal(unable_to_seek);
|
---|
| 649 | }
|
---|
| 650 | #endif
|
---|
[821] | 651 | }
|
---|
| 652 |
|
---|
[1770] | 653 | #if ENABLE_FEATURE_FDISK_WRITABLE
|
---|
[821] | 654 | static void
|
---|
[1770] | 655 | write_sector(ullong secno, char *buf)
|
---|
[821] | 656 | {
|
---|
| 657 | seek_sector(secno);
|
---|
| 658 | if (write(fd, buf, sector_size) != sector_size)
|
---|
| 659 | fdisk_fatal(unable_to_write);
|
---|
| 660 | }
|
---|
| 661 | #endif
|
---|
| 662 |
|
---|
| 663 | /* Allocate a buffer and read a partition table sector */
|
---|
| 664 | static void
|
---|
[1770] | 665 | read_pte(struct pte *pe, ullong offset)
|
---|
[821] | 666 | {
|
---|
| 667 | pe->offset = offset;
|
---|
[1770] | 668 | pe->sectorbuffer = xmalloc(sector_size);
|
---|
[821] | 669 | seek_sector(offset);
|
---|
| 670 | if (read(fd, pe->sectorbuffer, sector_size) != sector_size)
|
---|
| 671 | fdisk_fatal(unable_to_read);
|
---|
[1770] | 672 | #if ENABLE_FEATURE_FDISK_WRITABLE
|
---|
[821] | 673 | pe->changed = 0;
|
---|
| 674 | #endif
|
---|
| 675 | pe->part_table = pe->ext_pointer = NULL;
|
---|
| 676 | }
|
---|
| 677 |
|
---|
[1770] | 678 | static unsigned
|
---|
[821] | 679 | get_partition_start(const struct pte *pe)
|
---|
| 680 | {
|
---|
| 681 | return pe->offset + get_start_sect(pe->part_table);
|
---|
| 682 | }
|
---|
| 683 |
|
---|
[1770] | 684 | #if ENABLE_FEATURE_FDISK_WRITABLE
|
---|
[821] | 685 | /*
|
---|
| 686 | * Avoid warning about DOS partitions when no DOS partition was changed.
|
---|
| 687 | * Here a heuristic "is probably dos partition".
|
---|
| 688 | * We might also do the opposite and warn in all cases except
|
---|
| 689 | * for "is probably nondos partition".
|
---|
| 690 | */
|
---|
| 691 | static int
|
---|
| 692 | is_dos_partition(int t)
|
---|
| 693 | {
|
---|
| 694 | return (t == 1 || t == 4 || t == 6 ||
|
---|
| 695 | t == 0x0b || t == 0x0c || t == 0x0e ||
|
---|
| 696 | t == 0x11 || t == 0x12 || t == 0x14 || t == 0x16 ||
|
---|
| 697 | t == 0x1b || t == 0x1c || t == 0x1e || t == 0x24 ||
|
---|
| 698 | t == 0xc1 || t == 0xc4 || t == 0xc6);
|
---|
| 699 | }
|
---|
| 700 |
|
---|
| 701 | static void
|
---|
| 702 | menu(void)
|
---|
| 703 | {
|
---|
[1770] | 704 | puts("Command Action");
|
---|
| 705 | if (LABEL_IS_SUN) {
|
---|
| 706 | puts("a\ttoggle a read only flag"); /* sun */
|
---|
| 707 | puts("b\tedit bsd disklabel");
|
---|
| 708 | puts("c\ttoggle the mountable flag"); /* sun */
|
---|
| 709 | puts("d\tdelete a partition");
|
---|
| 710 | puts("l\tlist known partition types");
|
---|
| 711 | puts("n\tadd a new partition");
|
---|
| 712 | puts("o\tcreate a new empty DOS partition table");
|
---|
| 713 | puts("p\tprint the partition table");
|
---|
| 714 | puts("q\tquit without saving changes");
|
---|
| 715 | puts("s\tcreate a new empty Sun disklabel"); /* sun */
|
---|
| 716 | puts("t\tchange a partition's system id");
|
---|
| 717 | puts("u\tchange display/entry units");
|
---|
| 718 | puts("v\tverify the partition table");
|
---|
| 719 | puts("w\twrite table to disk and exit");
|
---|
| 720 | #if ENABLE_FEATURE_FDISK_ADVANCED
|
---|
| 721 | puts("x\textra functionality (experts only)");
|
---|
[821] | 722 | #endif
|
---|
[1770] | 723 | } else if (LABEL_IS_SGI) {
|
---|
| 724 | puts("a\tselect bootable partition"); /* sgi flavour */
|
---|
| 725 | puts("b\tedit bootfile entry"); /* sgi */
|
---|
| 726 | puts("c\tselect sgi swap partition"); /* sgi flavour */
|
---|
| 727 | puts("d\tdelete a partition");
|
---|
| 728 | puts("l\tlist known partition types");
|
---|
| 729 | puts("n\tadd a new partition");
|
---|
| 730 | puts("o\tcreate a new empty DOS partition table");
|
---|
| 731 | puts("p\tprint the partition table");
|
---|
| 732 | puts("q\tquit without saving changes");
|
---|
| 733 | puts("s\tcreate a new empty Sun disklabel"); /* sun */
|
---|
| 734 | puts("t\tchange a partition's system id");
|
---|
| 735 | puts("u\tchange display/entry units");
|
---|
| 736 | puts("v\tverify the partition table");
|
---|
| 737 | puts("w\twrite table to disk and exit");
|
---|
| 738 | } else if (LABEL_IS_AIX) {
|
---|
| 739 | puts("o\tcreate a new empty DOS partition table");
|
---|
| 740 | puts("q\tquit without saving changes");
|
---|
| 741 | puts("s\tcreate a new empty Sun disklabel"); /* sun */
|
---|
| 742 | } else {
|
---|
| 743 | puts("a\ttoggle a bootable flag");
|
---|
| 744 | puts("b\tedit bsd disklabel");
|
---|
| 745 | puts("c\ttoggle the dos compatibility flag");
|
---|
| 746 | puts("d\tdelete a partition");
|
---|
| 747 | puts("l\tlist known partition types");
|
---|
| 748 | puts("n\tadd a new partition");
|
---|
| 749 | puts("o\tcreate a new empty DOS partition table");
|
---|
| 750 | puts("p\tprint the partition table");
|
---|
| 751 | puts("q\tquit without saving changes");
|
---|
| 752 | puts("s\tcreate a new empty Sun disklabel"); /* sun */
|
---|
| 753 | puts("t\tchange a partition's system id");
|
---|
| 754 | puts("u\tchange display/entry units");
|
---|
| 755 | puts("v\tverify the partition table");
|
---|
| 756 | puts("w\twrite table to disk and exit");
|
---|
| 757 | #if ENABLE_FEATURE_FDISK_ADVANCED
|
---|
| 758 | puts("x\textra functionality (experts only)");
|
---|
[821] | 759 | #endif
|
---|
| 760 | }
|
---|
| 761 | }
|
---|
[1770] | 762 | #endif /* FEATURE_FDISK_WRITABLE */
|
---|
[821] | 763 |
|
---|
| 764 |
|
---|
[1770] | 765 | #if ENABLE_FEATURE_FDISK_ADVANCED
|
---|
[821] | 766 | static void
|
---|
| 767 | xmenu(void)
|
---|
| 768 | {
|
---|
[1770] | 769 | puts("Command Action");
|
---|
| 770 | if (LABEL_IS_SUN) {
|
---|
| 771 | puts("a\tchange number of alternate cylinders"); /*sun*/
|
---|
| 772 | puts("c\tchange number of cylinders");
|
---|
| 773 | puts("d\tprint the raw data in the partition table");
|
---|
| 774 | puts("e\tchange number of extra sectors per cylinder");/*sun*/
|
---|
| 775 | puts("h\tchange number of heads");
|
---|
| 776 | puts("i\tchange interleave factor"); /*sun*/
|
---|
| 777 | puts("o\tchange rotation speed (rpm)"); /*sun*/
|
---|
| 778 | puts("p\tprint the partition table");
|
---|
| 779 | puts("q\tquit without saving changes");
|
---|
| 780 | puts("r\treturn to main menu");
|
---|
| 781 | puts("s\tchange number of sectors/track");
|
---|
| 782 | puts("v\tverify the partition table");
|
---|
| 783 | puts("w\twrite table to disk and exit");
|
---|
| 784 | puts("y\tchange number of physical cylinders"); /*sun*/
|
---|
| 785 | } else if (LABEL_IS_SGI) {
|
---|
| 786 | puts("b\tmove beginning of data in a partition"); /* !sun */
|
---|
| 787 | puts("c\tchange number of cylinders");
|
---|
| 788 | puts("d\tprint the raw data in the partition table");
|
---|
| 789 | puts("e\tlist extended partitions"); /* !sun */
|
---|
| 790 | puts("g\tcreate an IRIX (SGI) partition table");/* sgi */
|
---|
| 791 | puts("h\tchange number of heads");
|
---|
| 792 | puts("p\tprint the partition table");
|
---|
| 793 | puts("q\tquit without saving changes");
|
---|
| 794 | puts("r\treturn to main menu");
|
---|
| 795 | puts("s\tchange number of sectors/track");
|
---|
| 796 | puts("v\tverify the partition table");
|
---|
| 797 | puts("w\twrite table to disk and exit");
|
---|
| 798 | } else if (LABEL_IS_AIX) {
|
---|
| 799 | puts("b\tmove beginning of data in a partition"); /* !sun */
|
---|
| 800 | puts("c\tchange number of cylinders");
|
---|
| 801 | puts("d\tprint the raw data in the partition table");
|
---|
| 802 | puts("e\tlist extended partitions"); /* !sun */
|
---|
| 803 | puts("g\tcreate an IRIX (SGI) partition table");/* sgi */
|
---|
| 804 | puts("h\tchange number of heads");
|
---|
| 805 | puts("p\tprint the partition table");
|
---|
| 806 | puts("q\tquit without saving changes");
|
---|
| 807 | puts("r\treturn to main menu");
|
---|
| 808 | puts("s\tchange number of sectors/track");
|
---|
| 809 | puts("v\tverify the partition table");
|
---|
| 810 | puts("w\twrite table to disk and exit");
|
---|
| 811 | } else {
|
---|
| 812 | puts("b\tmove beginning of data in a partition"); /* !sun */
|
---|
| 813 | puts("c\tchange number of cylinders");
|
---|
| 814 | puts("d\tprint the raw data in the partition table");
|
---|
| 815 | puts("e\tlist extended partitions"); /* !sun */
|
---|
| 816 | puts("f\tfix partition order"); /* !sun, !aix, !sgi */
|
---|
| 817 | #if ENABLE_FEATURE_SGI_LABEL
|
---|
| 818 | puts("g\tcreate an IRIX (SGI) partition table");/* sgi */
|
---|
[821] | 819 | #endif
|
---|
[1770] | 820 | puts("h\tchange number of heads");
|
---|
| 821 | puts("p\tprint the partition table");
|
---|
| 822 | puts("q\tquit without saving changes");
|
---|
| 823 | puts("r\treturn to main menu");
|
---|
| 824 | puts("s\tchange number of sectors/track");
|
---|
| 825 | puts("v\tverify the partition table");
|
---|
| 826 | puts("w\twrite table to disk and exit");
|
---|
[821] | 827 | }
|
---|
| 828 | }
|
---|
| 829 | #endif /* ADVANCED mode */
|
---|
| 830 |
|
---|
[1770] | 831 | #if ENABLE_FEATURE_FDISK_WRITABLE
|
---|
| 832 | static const char *const *
|
---|
[821] | 833 | get_sys_types(void)
|
---|
| 834 | {
|
---|
| 835 | return (
|
---|
[1770] | 836 | LABEL_IS_SUN ? sun_sys_types :
|
---|
| 837 | LABEL_IS_SGI ? sgi_sys_types :
|
---|
[821] | 838 | i386_sys_types);
|
---|
| 839 | }
|
---|
| 840 | #else
|
---|
| 841 | #define get_sys_types() i386_sys_types
|
---|
[1770] | 842 | #endif /* FEATURE_FDISK_WRITABLE */
|
---|
[821] | 843 |
|
---|
[1770] | 844 | static const char *
|
---|
| 845 | partition_type(unsigned char type)
|
---|
[821] | 846 | {
|
---|
| 847 | int i;
|
---|
[1770] | 848 | const char *const *types = get_sys_types();
|
---|
[821] | 849 |
|
---|
[1770] | 850 | for (i = 0; types[i]; i++)
|
---|
| 851 | if ((unsigned char)types[i][0] == type)
|
---|
| 852 | return types[i] + 1;
|
---|
[821] | 853 |
|
---|
[1770] | 854 | return "Unknown";
|
---|
[821] | 855 | }
|
---|
| 856 |
|
---|
| 857 |
|
---|
[1770] | 858 | #if ENABLE_FEATURE_FDISK_WRITABLE
|
---|
[821] | 859 | static int
|
---|
| 860 | get_sysid(int i)
|
---|
| 861 | {
|
---|
[1770] | 862 | return LABEL_IS_SUN ? sunlabel->infos[i].id :
|
---|
| 863 | (LABEL_IS_SGI ? sgi_get_sysid(i) :
|
---|
| 864 | ptes[i].part_table->sys_ind);
|
---|
[821] | 865 | }
|
---|
| 866 |
|
---|
[1770] | 867 | static void
|
---|
| 868 | list_types(const char *const *sys)
|
---|
[821] | 869 | {
|
---|
[1770] | 870 | enum { COLS = 3 };
|
---|
| 871 |
|
---|
| 872 | unsigned last[COLS];
|
---|
| 873 | unsigned done, next, size;
|
---|
[821] | 874 | int i;
|
---|
| 875 |
|
---|
[1770] | 876 | for (size = 0; sys[size]; size++) /* */;
|
---|
[821] | 877 |
|
---|
[1770] | 878 | done = 0;
|
---|
| 879 | for (i = COLS-1; i >= 0; i--) {
|
---|
| 880 | done += (size + i - done) / (i + 1);
|
---|
| 881 | last[COLS-1 - i] = done;
|
---|
| 882 | }
|
---|
[821] | 883 |
|
---|
[1770] | 884 | i = done = next = 0;
|
---|
[821] | 885 | do {
|
---|
[1770] | 886 | printf("%c%2x %-22.22s", i ? ' ' : '\n',
|
---|
| 887 | (unsigned char)sys[next][0],
|
---|
| 888 | sys[next] + 1);
|
---|
[821] | 889 | next = last[i++] + done;
|
---|
[1770] | 890 | if (i >= COLS || next >= last[i]) {
|
---|
[821] | 891 | i = 0;
|
---|
| 892 | next = ++done;
|
---|
| 893 | }
|
---|
| 894 | } while (done < last[0]);
|
---|
| 895 | putchar('\n');
|
---|
| 896 | }
|
---|
[1770] | 897 | #endif /* FEATURE_FDISK_WRITABLE */
|
---|
[821] | 898 |
|
---|
| 899 | static int
|
---|
| 900 | is_cleared_partition(const struct partition *p)
|
---|
| 901 | {
|
---|
| 902 | return !(!p || p->boot_ind || p->head || p->sector || p->cyl ||
|
---|
| 903 | p->sys_ind || p->end_head || p->end_sector || p->end_cyl ||
|
---|
| 904 | get_start_sect(p) || get_nr_sects(p));
|
---|
| 905 | }
|
---|
| 906 |
|
---|
| 907 | static void
|
---|
| 908 | clear_partition(struct partition *p)
|
---|
| 909 | {
|
---|
| 910 | if (!p)
|
---|
| 911 | return;
|
---|
| 912 | memset(p, 0, sizeof(struct partition));
|
---|
| 913 | }
|
---|
| 914 |
|
---|
[1770] | 915 | #if ENABLE_FEATURE_FDISK_WRITABLE
|
---|
[821] | 916 | static void
|
---|
[1770] | 917 | set_partition(int i, int doext, ullong start, ullong stop, int sysid)
|
---|
[821] | 918 | {
|
---|
| 919 | struct partition *p;
|
---|
[1770] | 920 | ullong offset;
|
---|
[821] | 921 |
|
---|
| 922 | if (doext) {
|
---|
| 923 | p = ptes[i].ext_pointer;
|
---|
| 924 | offset = extended_offset;
|
---|
| 925 | } else {
|
---|
| 926 | p = ptes[i].part_table;
|
---|
| 927 | offset = ptes[i].offset;
|
---|
| 928 | }
|
---|
| 929 | p->boot_ind = 0;
|
---|
| 930 | p->sys_ind = sysid;
|
---|
| 931 | set_start_sect(p, start - offset);
|
---|
| 932 | set_nr_sects(p, stop - start + 1);
|
---|
| 933 | if (dos_compatible_flag && (start/(sectors*heads) > 1023))
|
---|
| 934 | start = heads*sectors*1024 - 1;
|
---|
| 935 | set_hsc(p->head, p->sector, p->cyl, start);
|
---|
| 936 | if (dos_compatible_flag && (stop/(sectors*heads) > 1023))
|
---|
| 937 | stop = heads*sectors*1024 - 1;
|
---|
| 938 | set_hsc(p->end_head, p->end_sector, p->end_cyl, stop);
|
---|
| 939 | ptes[i].changed = 1;
|
---|
| 940 | }
|
---|
| 941 | #endif
|
---|
| 942 |
|
---|
| 943 | static int
|
---|
| 944 | warn_geometry(void)
|
---|
| 945 | {
|
---|
[1770] | 946 | if (heads && sectors && cylinders)
|
---|
| 947 | return 0;
|
---|
[821] | 948 |
|
---|
[1770] | 949 | printf("Unknown value(s) for:");
|
---|
[821] | 950 | if (!heads)
|
---|
[1770] | 951 | printf(" heads");
|
---|
[821] | 952 | if (!sectors)
|
---|
[1770] | 953 | printf(" sectors");
|
---|
[821] | 954 | if (!cylinders)
|
---|
[1770] | 955 | printf(" cylinders");
|
---|
| 956 | printf(
|
---|
| 957 | #if ENABLE_FEATURE_FDISK_WRITABLE
|
---|
| 958 | " (settable in the extra functions menu)"
|
---|
[821] | 959 | #endif
|
---|
[1770] | 960 | "\n");
|
---|
[821] | 961 | return 1;
|
---|
| 962 | }
|
---|
| 963 |
|
---|
[1770] | 964 | static void
|
---|
| 965 | update_units(void)
|
---|
[821] | 966 | {
|
---|
| 967 | int cyl_units = heads * sectors;
|
---|
| 968 |
|
---|
| 969 | if (display_in_cyl_units && cyl_units)
|
---|
| 970 | units_per_sector = cyl_units;
|
---|
| 971 | else
|
---|
| 972 | units_per_sector = 1; /* in sectors */
|
---|
| 973 | }
|
---|
| 974 |
|
---|
[1770] | 975 | #if ENABLE_FEATURE_FDISK_WRITABLE
|
---|
[821] | 976 | static void
|
---|
| 977 | warn_cylinders(void)
|
---|
| 978 | {
|
---|
[1770] | 979 | if (LABEL_IS_DOS && cylinders > 1024 && !nowarn)
|
---|
| 980 | printf("\n"
|
---|
[821] | 981 | "The number of cylinders for this disk is set to %d.\n"
|
---|
| 982 | "There is nothing wrong with that, but this is larger than 1024,\n"
|
---|
| 983 | "and could in certain setups cause problems with:\n"
|
---|
| 984 | "1) software that runs at boot time (e.g., old versions of LILO)\n"
|
---|
| 985 | "2) booting and partitioning software from other OSs\n"
|
---|
[1770] | 986 | " (e.g., DOS FDISK, OS/2 FDISK)\n",
|
---|
[821] | 987 | cylinders);
|
---|
| 988 | }
|
---|
| 989 | #endif
|
---|
| 990 |
|
---|
| 991 | static void
|
---|
| 992 | read_extended(int ext)
|
---|
| 993 | {
|
---|
| 994 | int i;
|
---|
| 995 | struct pte *pex;
|
---|
| 996 | struct partition *p, *q;
|
---|
| 997 |
|
---|
| 998 | ext_index = ext;
|
---|
| 999 | pex = &ptes[ext];
|
---|
| 1000 | pex->ext_pointer = pex->part_table;
|
---|
| 1001 |
|
---|
| 1002 | p = pex->part_table;
|
---|
| 1003 | if (!get_start_sect(p)) {
|
---|
[1770] | 1004 | printf("Bad offset in primary extended partition\n");
|
---|
[821] | 1005 | return;
|
---|
| 1006 | }
|
---|
| 1007 |
|
---|
| 1008 | while (IS_EXTENDED(p->sys_ind)) {
|
---|
| 1009 | struct pte *pe = &ptes[partitions];
|
---|
| 1010 |
|
---|
| 1011 | if (partitions >= MAXIMUM_PARTS) {
|
---|
| 1012 | /* This is not a Linux restriction, but
|
---|
| 1013 | this program uses arrays of size MAXIMUM_PARTS.
|
---|
[1770] | 1014 | Do not try to 'improve' this test. */
|
---|
[821] | 1015 | struct pte *pre = &ptes[partitions-1];
|
---|
[1770] | 1016 | #if ENABLE_FEATURE_FDISK_WRITABLE
|
---|
| 1017 | printf("Warning: deleting partitions after %d\n",
|
---|
[821] | 1018 | partitions);
|
---|
| 1019 | pre->changed = 1;
|
---|
| 1020 | #endif
|
---|
| 1021 | clear_partition(pre->ext_pointer);
|
---|
| 1022 | return;
|
---|
| 1023 | }
|
---|
| 1024 |
|
---|
| 1025 | read_pte(pe, extended_offset + get_start_sect(p));
|
---|
| 1026 |
|
---|
| 1027 | if (!extended_offset)
|
---|
| 1028 | extended_offset = get_start_sect(p);
|
---|
| 1029 |
|
---|
| 1030 | q = p = pt_offset(pe->sectorbuffer, 0);
|
---|
| 1031 | for (i = 0; i < 4; i++, p++) if (get_nr_sects(p)) {
|
---|
| 1032 | if (IS_EXTENDED(p->sys_ind)) {
|
---|
| 1033 | if (pe->ext_pointer)
|
---|
[1770] | 1034 | printf("Warning: extra link "
|
---|
| 1035 | "pointer in partition table"
|
---|
| 1036 | " %d\n", partitions + 1);
|
---|
[821] | 1037 | else
|
---|
| 1038 | pe->ext_pointer = p;
|
---|
| 1039 | } else if (p->sys_ind) {
|
---|
| 1040 | if (pe->part_table)
|
---|
[1770] | 1041 | printf("Warning: ignoring extra "
|
---|
[821] | 1042 | "data in partition table"
|
---|
[1770] | 1043 | " %d\n", partitions + 1);
|
---|
[821] | 1044 | else
|
---|
| 1045 | pe->part_table = p;
|
---|
| 1046 | }
|
---|
| 1047 | }
|
---|
| 1048 |
|
---|
| 1049 | /* very strange code here... */
|
---|
| 1050 | if (!pe->part_table) {
|
---|
| 1051 | if (q != pe->ext_pointer)
|
---|
| 1052 | pe->part_table = q;
|
---|
| 1053 | else
|
---|
| 1054 | pe->part_table = q + 1;
|
---|
| 1055 | }
|
---|
| 1056 | if (!pe->ext_pointer) {
|
---|
| 1057 | if (q != pe->part_table)
|
---|
| 1058 | pe->ext_pointer = q;
|
---|
| 1059 | else
|
---|
| 1060 | pe->ext_pointer = q + 1;
|
---|
| 1061 | }
|
---|
| 1062 |
|
---|
| 1063 | p = pe->ext_pointer;
|
---|
| 1064 | partitions++;
|
---|
| 1065 | }
|
---|
| 1066 |
|
---|
[1770] | 1067 | #if ENABLE_FEATURE_FDISK_WRITABLE
|
---|
[821] | 1068 | /* remove empty links */
|
---|
| 1069 | remove:
|
---|
| 1070 | for (i = 4; i < partitions; i++) {
|
---|
| 1071 | struct pte *pe = &ptes[i];
|
---|
| 1072 |
|
---|
[1770] | 1073 | if (!get_nr_sects(pe->part_table)
|
---|
| 1074 | && (partitions > 5 || ptes[4].part_table->sys_ind)
|
---|
| 1075 | ) {
|
---|
| 1076 | printf("Omitting empty partition (%d)\n", i+1);
|
---|
[821] | 1077 | delete_partition(i);
|
---|
| 1078 | goto remove; /* numbering changed */
|
---|
| 1079 | }
|
---|
| 1080 | }
|
---|
| 1081 | #endif
|
---|
| 1082 | }
|
---|
| 1083 |
|
---|
[1770] | 1084 | #if ENABLE_FEATURE_FDISK_WRITABLE
|
---|
[821] | 1085 | static void
|
---|
| 1086 | create_doslabel(void)
|
---|
| 1087 | {
|
---|
| 1088 | int i;
|
---|
| 1089 |
|
---|
[1770] | 1090 | printf(msg_building_new_label, "DOS disklabel");
|
---|
[821] | 1091 |
|
---|
| 1092 | current_label_type = label_dos;
|
---|
| 1093 |
|
---|
[1770] | 1094 | #if ENABLE_FEATURE_OSF_LABEL
|
---|
[821] | 1095 | possibly_osf_label = 0;
|
---|
| 1096 | #endif
|
---|
| 1097 | partitions = 4;
|
---|
| 1098 |
|
---|
| 1099 | for (i = 510-64; i < 510; i++)
|
---|
| 1100 | MBRbuffer[i] = 0;
|
---|
| 1101 | write_part_table_flag(MBRbuffer);
|
---|
| 1102 | extended_offset = 0;
|
---|
| 1103 | set_all_unchanged();
|
---|
| 1104 | set_changed(0);
|
---|
| 1105 | get_boot(create_empty_dos);
|
---|
| 1106 | }
|
---|
[1770] | 1107 | #endif /* FEATURE_FDISK_WRITABLE */
|
---|
[821] | 1108 |
|
---|
| 1109 | static void
|
---|
| 1110 | get_sectorsize(void)
|
---|
| 1111 | {
|
---|
| 1112 | if (!user_set_sector_size) {
|
---|
| 1113 | int arg;
|
---|
| 1114 | if (ioctl(fd, BLKSSZGET, &arg) == 0)
|
---|
| 1115 | sector_size = arg;
|
---|
| 1116 | if (sector_size != DEFAULT_SECTOR_SIZE)
|
---|
[1770] | 1117 | printf("Note: sector size is %d (not %d)\n",
|
---|
[821] | 1118 | sector_size, DEFAULT_SECTOR_SIZE);
|
---|
| 1119 | }
|
---|
| 1120 | }
|
---|
| 1121 |
|
---|
[1770] | 1122 | static void
|
---|
[821] | 1123 | get_kernel_geometry(void)
|
---|
| 1124 | {
|
---|
| 1125 | struct hd_geometry geometry;
|
---|
| 1126 |
|
---|
| 1127 | if (!ioctl(fd, HDIO_GETGEO, &geometry)) {
|
---|
| 1128 | kern_heads = geometry.heads;
|
---|
| 1129 | kern_sectors = geometry.sectors;
|
---|
| 1130 | /* never use geometry.cylinders - it is truncated */
|
---|
| 1131 | }
|
---|
| 1132 | }
|
---|
| 1133 |
|
---|
| 1134 | static void
|
---|
| 1135 | get_partition_table_geometry(void)
|
---|
| 1136 | {
|
---|
| 1137 | const unsigned char *bufp = (const unsigned char *)MBRbuffer;
|
---|
| 1138 | struct partition *p;
|
---|
| 1139 | int i, h, s, hh, ss;
|
---|
| 1140 | int first = 1;
|
---|
| 1141 | int bad = 0;
|
---|
| 1142 |
|
---|
| 1143 | if (!(valid_part_table_flag((char*)bufp)))
|
---|
| 1144 | return;
|
---|
| 1145 |
|
---|
| 1146 | hh = ss = 0;
|
---|
| 1147 | for (i = 0; i < 4; i++) {
|
---|
| 1148 | p = pt_offset(bufp, i);
|
---|
| 1149 | if (p->sys_ind != 0) {
|
---|
| 1150 | h = p->end_head + 1;
|
---|
| 1151 | s = (p->end_sector & 077);
|
---|
| 1152 | if (first) {
|
---|
| 1153 | hh = h;
|
---|
| 1154 | ss = s;
|
---|
| 1155 | first = 0;
|
---|
| 1156 | } else if (hh != h || ss != s)
|
---|
| 1157 | bad = 1;
|
---|
| 1158 | }
|
---|
| 1159 | }
|
---|
| 1160 |
|
---|
| 1161 | if (!first && !bad) {
|
---|
| 1162 | pt_heads = hh;
|
---|
| 1163 | pt_sectors = ss;
|
---|
| 1164 | }
|
---|
| 1165 | }
|
---|
| 1166 |
|
---|
| 1167 | static void
|
---|
| 1168 | get_geometry(void)
|
---|
| 1169 | {
|
---|
| 1170 | int sec_fac;
|
---|
[1770] | 1171 | uint64_t v64;
|
---|
[821] | 1172 |
|
---|
| 1173 | get_sectorsize();
|
---|
| 1174 | sec_fac = sector_size / 512;
|
---|
[1770] | 1175 | #if ENABLE_FEATURE_SUN_LABEL
|
---|
[821] | 1176 | guess_device_type();
|
---|
| 1177 | #endif
|
---|
| 1178 | heads = cylinders = sectors = 0;
|
---|
| 1179 | kern_heads = kern_sectors = 0;
|
---|
| 1180 | pt_heads = pt_sectors = 0;
|
---|
| 1181 |
|
---|
| 1182 | get_kernel_geometry();
|
---|
| 1183 | get_partition_table_geometry();
|
---|
| 1184 |
|
---|
| 1185 | heads = user_heads ? user_heads :
|
---|
| 1186 | pt_heads ? pt_heads :
|
---|
| 1187 | kern_heads ? kern_heads : 255;
|
---|
| 1188 | sectors = user_sectors ? user_sectors :
|
---|
| 1189 | pt_sectors ? pt_sectors :
|
---|
| 1190 | kern_sectors ? kern_sectors : 63;
|
---|
[1770] | 1191 | if (ioctl(fd, BLKGETSIZE64, &v64) == 0) {
|
---|
| 1192 | /* got bytes, convert to 512 byte sectors */
|
---|
| 1193 | total_number_of_sectors = (v64 >> 9);
|
---|
[821] | 1194 | } else {
|
---|
[1770] | 1195 | unsigned long longsectors; /* need temp of type long */
|
---|
| 1196 | if (ioctl(fd, BLKGETSIZE, &longsectors))
|
---|
| 1197 | longsectors = 0;
|
---|
| 1198 | total_number_of_sectors = longsectors;
|
---|
[821] | 1199 | }
|
---|
| 1200 |
|
---|
| 1201 | sector_offset = 1;
|
---|
| 1202 | if (dos_compatible_flag)
|
---|
| 1203 | sector_offset = sectors;
|
---|
| 1204 |
|
---|
| 1205 | cylinders = total_number_of_sectors / (heads * sectors * sec_fac);
|
---|
| 1206 | if (!cylinders)
|
---|
| 1207 | cylinders = user_cylinders;
|
---|
| 1208 | }
|
---|
| 1209 |
|
---|
| 1210 | /*
|
---|
| 1211 | * Read MBR. Returns:
|
---|
| 1212 | * -1: no 0xaa55 flag present (possibly entire disk BSD)
|
---|
| 1213 | * 0: found or created label
|
---|
| 1214 | * 1: I/O error
|
---|
| 1215 | */
|
---|
| 1216 | static int
|
---|
| 1217 | get_boot(enum action what)
|
---|
| 1218 | {
|
---|
| 1219 | int i;
|
---|
| 1220 |
|
---|
| 1221 | partitions = 4;
|
---|
| 1222 |
|
---|
| 1223 | for (i = 0; i < 4; i++) {
|
---|
| 1224 | struct pte *pe = &ptes[i];
|
---|
| 1225 |
|
---|
| 1226 | pe->part_table = pt_offset(MBRbuffer, i);
|
---|
| 1227 | pe->ext_pointer = NULL;
|
---|
| 1228 | pe->offset = 0;
|
---|
| 1229 | pe->sectorbuffer = MBRbuffer;
|
---|
[1770] | 1230 | #if ENABLE_FEATURE_FDISK_WRITABLE
|
---|
[821] | 1231 | pe->changed = (what == create_empty_dos);
|
---|
| 1232 | #endif
|
---|
| 1233 | }
|
---|
| 1234 |
|
---|
[1770] | 1235 | #if ENABLE_FEATURE_SUN_LABEL
|
---|
[821] | 1236 | if (what == create_empty_sun && check_sun_label())
|
---|
| 1237 | return 0;
|
---|
| 1238 | #endif
|
---|
| 1239 |
|
---|
| 1240 | memset(MBRbuffer, 0, 512);
|
---|
| 1241 |
|
---|
[1770] | 1242 | #if ENABLE_FEATURE_FDISK_WRITABLE
|
---|
[821] | 1243 | if (what == create_empty_dos)
|
---|
| 1244 | goto got_dos_table; /* skip reading disk */
|
---|
| 1245 |
|
---|
[1770] | 1246 | fd = open(disk_device, type_open);
|
---|
| 1247 | if (fd < 0) {
|
---|
| 1248 | fd = open(disk_device, O_RDONLY);
|
---|
| 1249 | if (fd < 0) {
|
---|
[821] | 1250 | if (what == try_only)
|
---|
| 1251 | return 1;
|
---|
| 1252 | fdisk_fatal(unable_to_open);
|
---|
| 1253 | } else
|
---|
[1770] | 1254 | printf("You will not be able to write "
|
---|
| 1255 | "the partition table\n");
|
---|
[821] | 1256 | }
|
---|
| 1257 |
|
---|
| 1258 | if (512 != read(fd, MBRbuffer, 512)) {
|
---|
| 1259 | if (what == try_only)
|
---|
| 1260 | return 1;
|
---|
| 1261 | fdisk_fatal(unable_to_read);
|
---|
| 1262 | }
|
---|
| 1263 | #else
|
---|
[1770] | 1264 | fd = open(disk_device, O_RDONLY);
|
---|
| 1265 | if (fd < 0)
|
---|
[821] | 1266 | return 1;
|
---|
| 1267 | if (512 != read(fd, MBRbuffer, 512))
|
---|
| 1268 | return 1;
|
---|
| 1269 | #endif
|
---|
| 1270 |
|
---|
| 1271 | get_geometry();
|
---|
| 1272 |
|
---|
| 1273 | update_units();
|
---|
| 1274 |
|
---|
[1770] | 1275 | #if ENABLE_FEATURE_SUN_LABEL
|
---|
[821] | 1276 | if (check_sun_label())
|
---|
| 1277 | return 0;
|
---|
| 1278 | #endif
|
---|
| 1279 |
|
---|
[1770] | 1280 | #if ENABLE_FEATURE_SGI_LABEL
|
---|
[821] | 1281 | if (check_sgi_label())
|
---|
| 1282 | return 0;
|
---|
| 1283 | #endif
|
---|
| 1284 |
|
---|
[1770] | 1285 | #if ENABLE_FEATURE_AIX_LABEL
|
---|
[821] | 1286 | if (check_aix_label())
|
---|
| 1287 | return 0;
|
---|
| 1288 | #endif
|
---|
| 1289 |
|
---|
[1770] | 1290 | #if ENABLE_FEATURE_OSF_LABEL
|
---|
[821] | 1291 | if (check_osf_label()) {
|
---|
| 1292 | possibly_osf_label = 1;
|
---|
| 1293 | if (!valid_part_table_flag(MBRbuffer)) {
|
---|
| 1294 | current_label_type = label_osf;
|
---|
| 1295 | return 0;
|
---|
| 1296 | }
|
---|
[1770] | 1297 | printf("This disk has both DOS and BSD magic.\n"
|
---|
| 1298 | "Give the 'b' command to go to BSD mode.\n");
|
---|
[821] | 1299 | }
|
---|
| 1300 | #endif
|
---|
| 1301 |
|
---|
[1770] | 1302 | #if ENABLE_FEATURE_FDISK_WRITABLE
|
---|
[821] | 1303 | got_dos_table:
|
---|
| 1304 | #endif
|
---|
| 1305 |
|
---|
| 1306 | if (!valid_part_table_flag(MBRbuffer)) {
|
---|
[1770] | 1307 | #if !ENABLE_FEATURE_FDISK_WRITABLE
|
---|
[821] | 1308 | return -1;
|
---|
| 1309 | #else
|
---|
| 1310 | switch (what) {
|
---|
| 1311 | case fdisk:
|
---|
[1770] | 1312 | printf("Device contains neither a valid DOS "
|
---|
[821] | 1313 | "partition table, nor Sun, SGI or OSF "
|
---|
[1770] | 1314 | "disklabel\n");
|
---|
[821] | 1315 | #ifdef __sparc__
|
---|
[1770] | 1316 | #if ENABLE_FEATURE_SUN_LABEL
|
---|
[821] | 1317 | create_sunlabel();
|
---|
| 1318 | #endif
|
---|
| 1319 | #else
|
---|
| 1320 | create_doslabel();
|
---|
| 1321 | #endif
|
---|
| 1322 | return 0;
|
---|
| 1323 | case try_only:
|
---|
| 1324 | return -1;
|
---|
| 1325 | case create_empty_dos:
|
---|
[1770] | 1326 | #if ENABLE_FEATURE_SUN_LABEL
|
---|
[821] | 1327 | case create_empty_sun:
|
---|
| 1328 | #endif
|
---|
| 1329 | break;
|
---|
| 1330 | default:
|
---|
[1770] | 1331 | bb_error_msg_and_die("internal error");
|
---|
[821] | 1332 | }
|
---|
[1770] | 1333 | #endif /* FEATURE_FDISK_WRITABLE */
|
---|
[821] | 1334 | }
|
---|
| 1335 |
|
---|
[1770] | 1336 | #if ENABLE_FEATURE_FDISK_WRITABLE
|
---|
[821] | 1337 | warn_cylinders();
|
---|
| 1338 | #endif
|
---|
| 1339 | warn_geometry();
|
---|
| 1340 |
|
---|
| 1341 | for (i = 0; i < 4; i++) {
|
---|
| 1342 | struct pte *pe = &ptes[i];
|
---|
| 1343 |
|
---|
| 1344 | if (IS_EXTENDED(pe->part_table->sys_ind)) {
|
---|
| 1345 | if (partitions != 4)
|
---|
[1770] | 1346 | printf("Ignoring extra extended "
|
---|
| 1347 | "partition %d\n", i + 1);
|
---|
[821] | 1348 | else
|
---|
| 1349 | read_extended(i);
|
---|
| 1350 | }
|
---|
| 1351 | }
|
---|
| 1352 |
|
---|
| 1353 | for (i = 3; i < partitions; i++) {
|
---|
| 1354 | struct pte *pe = &ptes[i];
|
---|
| 1355 |
|
---|
| 1356 | if (!valid_part_table_flag(pe->sectorbuffer)) {
|
---|
[1770] | 1357 | printf("Warning: invalid flag 0x%02x,0x%02x of partition "
|
---|
| 1358 | "table %d will be corrected by w(rite)\n",
|
---|
| 1359 | pe->sectorbuffer[510],
|
---|
| 1360 | pe->sectorbuffer[511],
|
---|
| 1361 | i + 1);
|
---|
| 1362 | #if ENABLE_FEATURE_FDISK_WRITABLE
|
---|
[821] | 1363 | pe->changed = 1;
|
---|
| 1364 | #endif
|
---|
| 1365 | }
|
---|
| 1366 | }
|
---|
| 1367 |
|
---|
| 1368 | return 0;
|
---|
| 1369 | }
|
---|
| 1370 |
|
---|
[1770] | 1371 | #if ENABLE_FEATURE_FDISK_WRITABLE
|
---|
[821] | 1372 | /*
|
---|
| 1373 | * Print the message MESG, then read an integer between LOW and HIGH (inclusive).
|
---|
| 1374 | * If the user hits Enter, DFLT is returned.
|
---|
| 1375 | * Answers like +10 are interpreted as offsets from BASE.
|
---|
| 1376 | *
|
---|
| 1377 | * There is no default if DFLT is not between LOW and HIGH.
|
---|
| 1378 | */
|
---|
[1770] | 1379 | static unsigned
|
---|
| 1380 | read_int(unsigned low, unsigned dflt, unsigned high, unsigned base, const char *mesg)
|
---|
[821] | 1381 | {
|
---|
[1770] | 1382 | unsigned i;
|
---|
[821] | 1383 | int default_ok = 1;
|
---|
[1770] | 1384 | const char *fmt = "%s (%u-%u, default %u): ";
|
---|
[821] | 1385 |
|
---|
[1770] | 1386 | if (dflt < low || dflt > high) {
|
---|
| 1387 | fmt = "%s (%u-%u): ";
|
---|
| 1388 | default_ok = 0;
|
---|
[821] | 1389 | }
|
---|
| 1390 |
|
---|
| 1391 | while (1) {
|
---|
| 1392 | int use_default = default_ok;
|
---|
| 1393 |
|
---|
| 1394 | /* ask question and read answer */
|
---|
[1770] | 1395 | do {
|
---|
| 1396 | printf(fmt, mesg, low, high, dflt);
|
---|
| 1397 | read_maybe_empty("");
|
---|
| 1398 | } while (*line_ptr != '\n' && !isdigit(*line_ptr)
|
---|
| 1399 | && *line_ptr != '-' && *line_ptr != '+');
|
---|
[821] | 1400 |
|
---|
| 1401 | if (*line_ptr == '+' || *line_ptr == '-') {
|
---|
| 1402 | int minus = (*line_ptr == '-');
|
---|
| 1403 | int absolute = 0;
|
---|
| 1404 |
|
---|
[1770] | 1405 | i = atoi(line_ptr + 1);
|
---|
[821] | 1406 |
|
---|
| 1407 | while (isdigit(*++line_ptr))
|
---|
| 1408 | use_default = 0;
|
---|
| 1409 |
|
---|
| 1410 | switch (*line_ptr) {
|
---|
| 1411 | case 'c':
|
---|
| 1412 | case 'C':
|
---|
| 1413 | if (!display_in_cyl_units)
|
---|
| 1414 | i *= heads * sectors;
|
---|
| 1415 | break;
|
---|
| 1416 | case 'K':
|
---|
| 1417 | absolute = 1024;
|
---|
| 1418 | break;
|
---|
| 1419 | case 'k':
|
---|
| 1420 | absolute = 1000;
|
---|
| 1421 | break;
|
---|
| 1422 | case 'm':
|
---|
| 1423 | case 'M':
|
---|
| 1424 | absolute = 1000000;
|
---|
| 1425 | break;
|
---|
| 1426 | case 'g':
|
---|
| 1427 | case 'G':
|
---|
| 1428 | absolute = 1000000000;
|
---|
| 1429 | break;
|
---|
| 1430 | default:
|
---|
| 1431 | break;
|
---|
| 1432 | }
|
---|
| 1433 | if (absolute) {
|
---|
[1770] | 1434 | ullong bytes;
|
---|
[821] | 1435 | unsigned long unit;
|
---|
| 1436 |
|
---|
[1770] | 1437 | bytes = (ullong) i * absolute;
|
---|
[821] | 1438 | unit = sector_size * units_per_sector;
|
---|
| 1439 | bytes += unit/2; /* round */
|
---|
| 1440 | bytes /= unit;
|
---|
| 1441 | i = bytes;
|
---|
| 1442 | }
|
---|
| 1443 | if (minus)
|
---|
| 1444 | i = -i;
|
---|
| 1445 | i += base;
|
---|
| 1446 | } else {
|
---|
| 1447 | i = atoi(line_ptr);
|
---|
| 1448 | while (isdigit(*line_ptr)) {
|
---|
| 1449 | line_ptr++;
|
---|
| 1450 | use_default = 0;
|
---|
| 1451 | }
|
---|
| 1452 | }
|
---|
[1770] | 1453 | if (use_default) {
|
---|
| 1454 | i = dflt;
|
---|
| 1455 | printf("Using default value %u\n", i);
|
---|
| 1456 | }
|
---|
[821] | 1457 | if (i >= low && i <= high)
|
---|
| 1458 | break;
|
---|
[1770] | 1459 | printf("Value is out of range\n");
|
---|
[821] | 1460 | }
|
---|
| 1461 | return i;
|
---|
| 1462 | }
|
---|
| 1463 |
|
---|
| 1464 | static int
|
---|
| 1465 | get_partition(int warn, int max)
|
---|
| 1466 | {
|
---|
| 1467 | struct pte *pe;
|
---|
| 1468 | int i;
|
---|
| 1469 |
|
---|
[1770] | 1470 | i = read_int(1, 0, max, 0, "Partition number") - 1;
|
---|
[821] | 1471 | pe = &ptes[i];
|
---|
| 1472 |
|
---|
| 1473 | if (warn) {
|
---|
[1770] | 1474 | if ((!LABEL_IS_SUN && !LABEL_IS_SGI && !pe->part_table->sys_ind)
|
---|
| 1475 | || (LABEL_IS_SUN && (!sunlabel->partitions[i].num_sectors || !sunlabel->infos[i].id))
|
---|
| 1476 | || (LABEL_IS_SGI && !sgi_get_num_sectors(i))
|
---|
| 1477 | ) {
|
---|
| 1478 | printf("Warning: partition %d has empty type\n", i+1);
|
---|
[821] | 1479 | }
|
---|
| 1480 | }
|
---|
| 1481 | return i;
|
---|
| 1482 | }
|
---|
| 1483 |
|
---|
| 1484 | static int
|
---|
| 1485 | get_existing_partition(int warn, int max)
|
---|
| 1486 | {
|
---|
| 1487 | int pno = -1;
|
---|
| 1488 | int i;
|
---|
| 1489 |
|
---|
| 1490 | for (i = 0; i < max; i++) {
|
---|
| 1491 | struct pte *pe = &ptes[i];
|
---|
| 1492 | struct partition *p = pe->part_table;
|
---|
| 1493 |
|
---|
| 1494 | if (p && !is_cleared_partition(p)) {
|
---|
| 1495 | if (pno >= 0)
|
---|
| 1496 | goto not_unique;
|
---|
| 1497 | pno = i;
|
---|
| 1498 | }
|
---|
| 1499 | }
|
---|
| 1500 | if (pno >= 0) {
|
---|
[1770] | 1501 | printf("Selected partition %d\n", pno+1);
|
---|
[821] | 1502 | return pno;
|
---|
| 1503 | }
|
---|
[1770] | 1504 | printf("No partition is defined yet!\n");
|
---|
[821] | 1505 | return -1;
|
---|
| 1506 |
|
---|
| 1507 | not_unique:
|
---|
| 1508 | return get_partition(warn, max);
|
---|
| 1509 | }
|
---|
| 1510 |
|
---|
| 1511 | static int
|
---|
| 1512 | get_nonexisting_partition(int warn, int max)
|
---|
| 1513 | {
|
---|
| 1514 | int pno = -1;
|
---|
| 1515 | int i;
|
---|
| 1516 |
|
---|
| 1517 | for (i = 0; i < max; i++) {
|
---|
| 1518 | struct pte *pe = &ptes[i];
|
---|
| 1519 | struct partition *p = pe->part_table;
|
---|
| 1520 |
|
---|
| 1521 | if (p && is_cleared_partition(p)) {
|
---|
| 1522 | if (pno >= 0)
|
---|
| 1523 | goto not_unique;
|
---|
| 1524 | pno = i;
|
---|
| 1525 | }
|
---|
| 1526 | }
|
---|
| 1527 | if (pno >= 0) {
|
---|
[1770] | 1528 | printf("Selected partition %d\n", pno+1);
|
---|
[821] | 1529 | return pno;
|
---|
| 1530 | }
|
---|
[1770] | 1531 | printf("All primary partitions have been defined already!\n");
|
---|
[821] | 1532 | return -1;
|
---|
| 1533 |
|
---|
| 1534 | not_unique:
|
---|
| 1535 | return get_partition(warn, max);
|
---|
| 1536 | }
|
---|
| 1537 |
|
---|
| 1538 |
|
---|
[1770] | 1539 | static void
|
---|
| 1540 | change_units(void)
|
---|
[821] | 1541 | {
|
---|
| 1542 | display_in_cyl_units = !display_in_cyl_units;
|
---|
| 1543 | update_units();
|
---|
[1770] | 1544 | printf("Changing display/entry units to %s\n",
|
---|
[821] | 1545 | str_units(PLURAL));
|
---|
| 1546 | }
|
---|
| 1547 |
|
---|
| 1548 | static void
|
---|
| 1549 | toggle_active(int i)
|
---|
| 1550 | {
|
---|
| 1551 | struct pte *pe = &ptes[i];
|
---|
| 1552 | struct partition *p = pe->part_table;
|
---|
| 1553 |
|
---|
| 1554 | if (IS_EXTENDED(p->sys_ind) && !p->boot_ind)
|
---|
[1770] | 1555 | printf("WARNING: Partition %d is an extended partition\n", i + 1);
|
---|
[821] | 1556 | p->boot_ind = (p->boot_ind ? 0 : ACTIVE_FLAG);
|
---|
| 1557 | pe->changed = 1;
|
---|
| 1558 | }
|
---|
| 1559 |
|
---|
| 1560 | static void
|
---|
| 1561 | toggle_dos_compatibility_flag(void)
|
---|
| 1562 | {
|
---|
| 1563 | dos_compatible_flag = ~dos_compatible_flag;
|
---|
| 1564 | if (dos_compatible_flag) {
|
---|
| 1565 | sector_offset = sectors;
|
---|
[1770] | 1566 | printf("DOS Compatibility flag is set\n");
|
---|
| 1567 | } else {
|
---|
[821] | 1568 | sector_offset = 1;
|
---|
[1770] | 1569 | printf("DOS Compatibility flag is not set\n");
|
---|
[821] | 1570 | }
|
---|
| 1571 | }
|
---|
| 1572 |
|
---|
| 1573 | static void
|
---|
| 1574 | delete_partition(int i)
|
---|
| 1575 | {
|
---|
| 1576 | struct pte *pe = &ptes[i];
|
---|
| 1577 | struct partition *p = pe->part_table;
|
---|
| 1578 | struct partition *q = pe->ext_pointer;
|
---|
| 1579 |
|
---|
| 1580 | /* Note that for the fifth partition (i == 4) we don't actually
|
---|
| 1581 | * decrement partitions.
|
---|
| 1582 | */
|
---|
| 1583 |
|
---|
| 1584 | if (warn_geometry())
|
---|
| 1585 | return; /* C/H/S not set */
|
---|
| 1586 | pe->changed = 1;
|
---|
| 1587 |
|
---|
[1770] | 1588 | if (LABEL_IS_SUN) {
|
---|
[821] | 1589 | sun_delete_partition(i);
|
---|
| 1590 | return;
|
---|
| 1591 | }
|
---|
[1770] | 1592 | if (LABEL_IS_SGI) {
|
---|
[821] | 1593 | sgi_delete_partition(i);
|
---|
| 1594 | return;
|
---|
| 1595 | }
|
---|
| 1596 |
|
---|
| 1597 | if (i < 4) {
|
---|
| 1598 | if (IS_EXTENDED(p->sys_ind) && i == ext_index) {
|
---|
| 1599 | partitions = 4;
|
---|
| 1600 | ptes[ext_index].ext_pointer = NULL;
|
---|
| 1601 | extended_offset = 0;
|
---|
| 1602 | }
|
---|
| 1603 | clear_partition(p);
|
---|
| 1604 | return;
|
---|
| 1605 | }
|
---|
| 1606 |
|
---|
| 1607 | if (!q->sys_ind && i > 4) {
|
---|
| 1608 | /* the last one in the chain - just delete */
|
---|
| 1609 | --partitions;
|
---|
| 1610 | --i;
|
---|
| 1611 | clear_partition(ptes[i].ext_pointer);
|
---|
| 1612 | ptes[i].changed = 1;
|
---|
| 1613 | } else {
|
---|
| 1614 | /* not the last one - further ones will be moved down */
|
---|
| 1615 | if (i > 4) {
|
---|
| 1616 | /* delete this link in the chain */
|
---|
| 1617 | p = ptes[i-1].ext_pointer;
|
---|
| 1618 | *p = *q;
|
---|
| 1619 | set_start_sect(p, get_start_sect(q));
|
---|
| 1620 | set_nr_sects(p, get_nr_sects(q));
|
---|
| 1621 | ptes[i-1].changed = 1;
|
---|
| 1622 | } else if (partitions > 5) { /* 5 will be moved to 4 */
|
---|
| 1623 | /* the first logical in a longer chain */
|
---|
| 1624 | pe = &ptes[5];
|
---|
| 1625 |
|
---|
| 1626 | if (pe->part_table) /* prevent SEGFAULT */
|
---|
| 1627 | set_start_sect(pe->part_table,
|
---|
| 1628 | get_partition_start(pe) -
|
---|
| 1629 | extended_offset);
|
---|
| 1630 | pe->offset = extended_offset;
|
---|
| 1631 | pe->changed = 1;
|
---|
| 1632 | }
|
---|
| 1633 |
|
---|
| 1634 | if (partitions > 5) {
|
---|
| 1635 | partitions--;
|
---|
| 1636 | while (i < partitions) {
|
---|
| 1637 | ptes[i] = ptes[i+1];
|
---|
| 1638 | i++;
|
---|
| 1639 | }
|
---|
| 1640 | } else
|
---|
| 1641 | /* the only logical: clear only */
|
---|
| 1642 | clear_partition(ptes[i].part_table);
|
---|
| 1643 | }
|
---|
| 1644 | }
|
---|
| 1645 |
|
---|
| 1646 | static void
|
---|
| 1647 | change_sysid(void)
|
---|
| 1648 | {
|
---|
| 1649 | int i, sys, origsys;
|
---|
| 1650 | struct partition *p;
|
---|
| 1651 |
|
---|
| 1652 | /* If sgi_label then don't use get_existing_partition,
|
---|
| 1653 | let the user select a partition, since get_existing_partition()
|
---|
| 1654 | only works for Linux like partition tables. */
|
---|
[1770] | 1655 | if (!LABEL_IS_SGI) {
|
---|
[821] | 1656 | i = get_existing_partition(0, partitions);
|
---|
| 1657 | } else {
|
---|
| 1658 | i = get_partition(0, partitions);
|
---|
| 1659 | }
|
---|
| 1660 | if (i == -1)
|
---|
| 1661 | return;
|
---|
| 1662 | p = ptes[i].part_table;
|
---|
| 1663 | origsys = sys = get_sysid(i);
|
---|
| 1664 |
|
---|
| 1665 | /* if changing types T to 0 is allowed, then
|
---|
| 1666 | the reverse change must be allowed, too */
|
---|
[1770] | 1667 | if (!sys && !LABEL_IS_SGI && !LABEL_IS_SUN && !get_nr_sects(p)) {
|
---|
| 1668 | printf("Partition %d does not exist yet!\n", i + 1);
|
---|
| 1669 | return;
|
---|
| 1670 | }
|
---|
| 1671 | while (1) {
|
---|
| 1672 | sys = read_hex(get_sys_types());
|
---|
[821] | 1673 |
|
---|
[1770] | 1674 | if (!sys && !LABEL_IS_SGI && !LABEL_IS_SUN) {
|
---|
| 1675 | printf("Type 0 means free space to many systems\n"
|
---|
[821] | 1676 | "(but not to Linux). Having partitions of\n"
|
---|
[1770] | 1677 | "type 0 is probably unwise.\n");
|
---|
[821] | 1678 | /* break; */
|
---|
| 1679 | }
|
---|
| 1680 |
|
---|
[1770] | 1681 | if (!LABEL_IS_SUN && !LABEL_IS_SGI) {
|
---|
[821] | 1682 | if (IS_EXTENDED(sys) != IS_EXTENDED(p->sys_ind)) {
|
---|
[1770] | 1683 | printf("You cannot change a partition into"
|
---|
| 1684 | " an extended one or vice versa\n");
|
---|
[821] | 1685 | break;
|
---|
| 1686 | }
|
---|
| 1687 | }
|
---|
| 1688 |
|
---|
| 1689 | if (sys < 256) {
|
---|
[1770] | 1690 | #if ENABLE_FEATURE_SUN_LABEL
|
---|
| 1691 | if (LABEL_IS_SUN && i == 2 && sys != SUN_WHOLE_DISK)
|
---|
| 1692 | printf("Consider leaving partition 3 "
|
---|
[821] | 1693 | "as Whole disk (5),\n"
|
---|
| 1694 | "as SunOS/Solaris expects it and "
|
---|
[1770] | 1695 | "even Linux likes it\n\n");
|
---|
[821] | 1696 | #endif
|
---|
[1770] | 1697 | #if ENABLE_FEATURE_SGI_LABEL
|
---|
| 1698 | if (LABEL_IS_SGI &&
|
---|
[821] | 1699 | (
|
---|
[1770] | 1700 | (i == 10 && sys != SGI_ENTIRE_DISK) ||
|
---|
[821] | 1701 | (i == 8 && sys != 0)
|
---|
| 1702 | )
|
---|
[1770] | 1703 | ) {
|
---|
| 1704 | printf("Consider leaving partition 9 "
|
---|
[821] | 1705 | "as volume header (0),\nand "
|
---|
| 1706 | "partition 11 as entire volume (6)"
|
---|
[1770] | 1707 | "as IRIX expects it\n\n");
|
---|
[821] | 1708 | }
|
---|
| 1709 | #endif
|
---|
| 1710 | if (sys == origsys)
|
---|
| 1711 | break;
|
---|
[1770] | 1712 | if (LABEL_IS_SUN) {
|
---|
[821] | 1713 | sun_change_sysid(i, sys);
|
---|
[1770] | 1714 | } else if (LABEL_IS_SGI) {
|
---|
[821] | 1715 | sgi_change_sysid(i, sys);
|
---|
| 1716 | } else
|
---|
| 1717 | p->sys_ind = sys;
|
---|
| 1718 |
|
---|
[1770] | 1719 | printf("Changed system type of partition %d "
|
---|
| 1720 | "to %x (%s)\n", i + 1, sys,
|
---|
[821] | 1721 | partition_type(sys));
|
---|
| 1722 | ptes[i].changed = 1;
|
---|
| 1723 | if (is_dos_partition(origsys) ||
|
---|
| 1724 | is_dos_partition(sys))
|
---|
| 1725 | dos_changed = 1;
|
---|
| 1726 | break;
|
---|
| 1727 | }
|
---|
| 1728 | }
|
---|
| 1729 | }
|
---|
[1770] | 1730 | #endif /* FEATURE_FDISK_WRITABLE */
|
---|
[821] | 1731 |
|
---|
| 1732 |
|
---|
[1770] | 1733 | /* check_consistency() and linear2chs() added Sat Mar 6 12:28:16 1993,
|
---|
[821] | 1734 | * faith@cs.unc.edu, based on code fragments from pfdisk by Gordon W. Ross,
|
---|
| 1735 | * Jan. 1990 (version 1.2.1 by Gordon W. Ross Aug. 1990; Modified by S.
|
---|
| 1736 | * Lubkin Oct. 1991). */
|
---|
| 1737 |
|
---|
| 1738 | static void
|
---|
[1770] | 1739 | linear2chs(unsigned ls, unsigned *c, unsigned *h, unsigned *s)
|
---|
[821] | 1740 | {
|
---|
| 1741 | int spc = heads * sectors;
|
---|
| 1742 |
|
---|
| 1743 | *c = ls / spc;
|
---|
| 1744 | ls = ls % spc;
|
---|
| 1745 | *h = ls / sectors;
|
---|
| 1746 | *s = ls % sectors + 1; /* sectors count from 1 */
|
---|
| 1747 | }
|
---|
| 1748 |
|
---|
| 1749 | static void
|
---|
| 1750 | check_consistency(const struct partition *p, int partition)
|
---|
| 1751 | {
|
---|
[1770] | 1752 | unsigned pbc, pbh, pbs; /* physical beginning c, h, s */
|
---|
| 1753 | unsigned pec, peh, pes; /* physical ending c, h, s */
|
---|
| 1754 | unsigned lbc, lbh, lbs; /* logical beginning c, h, s */
|
---|
| 1755 | unsigned lec, leh, les; /* logical ending c, h, s */
|
---|
[821] | 1756 |
|
---|
| 1757 | if (!heads || !sectors || (partition >= 4))
|
---|
| 1758 | return; /* do not check extended partitions */
|
---|
| 1759 |
|
---|
| 1760 | /* physical beginning c, h, s */
|
---|
| 1761 | pbc = (p->cyl & 0xff) | ((p->sector << 2) & 0x300);
|
---|
| 1762 | pbh = p->head;
|
---|
| 1763 | pbs = p->sector & 0x3f;
|
---|
| 1764 |
|
---|
| 1765 | /* physical ending c, h, s */
|
---|
| 1766 | pec = (p->end_cyl & 0xff) | ((p->end_sector << 2) & 0x300);
|
---|
| 1767 | peh = p->end_head;
|
---|
| 1768 | pes = p->end_sector & 0x3f;
|
---|
| 1769 |
|
---|
| 1770 | /* compute logical beginning (c, h, s) */
|
---|
[1770] | 1771 | linear2chs(get_start_sect(p), &lbc, &lbh, &lbs);
|
---|
[821] | 1772 |
|
---|
| 1773 | /* compute logical ending (c, h, s) */
|
---|
[1770] | 1774 | linear2chs(get_start_sect(p) + get_nr_sects(p) - 1, &lec, &leh, &les);
|
---|
[821] | 1775 |
|
---|
| 1776 | /* Same physical / logical beginning? */
|
---|
| 1777 | if (cylinders <= 1024 && (pbc != lbc || pbh != lbh || pbs != lbs)) {
|
---|
[1770] | 1778 | printf("Partition %d has different physical/logical "
|
---|
| 1779 | "beginnings (non-Linux?):\n", partition + 1);
|
---|
| 1780 | printf(" phys=(%d, %d, %d) ", pbc, pbh, pbs);
|
---|
| 1781 | printf("logical=(%d, %d, %d)\n",lbc, lbh, lbs);
|
---|
[821] | 1782 | }
|
---|
| 1783 |
|
---|
| 1784 | /* Same physical / logical ending? */
|
---|
| 1785 | if (cylinders <= 1024 && (pec != lec || peh != leh || pes != les)) {
|
---|
[1770] | 1786 | printf("Partition %d has different physical/logical "
|
---|
| 1787 | "endings:\n", partition + 1);
|
---|
| 1788 | printf(" phys=(%d, %d, %d) ", pec, peh, pes);
|
---|
| 1789 | printf("logical=(%d, %d, %d)\n", lec, leh, les);
|
---|
[821] | 1790 | }
|
---|
| 1791 |
|
---|
| 1792 | /* Ending on cylinder boundary? */
|
---|
| 1793 | if (peh != (heads - 1) || pes != sectors) {
|
---|
[1770] | 1794 | printf("Partition %i does not end on cylinder boundary\n",
|
---|
[821] | 1795 | partition + 1);
|
---|
| 1796 | }
|
---|
| 1797 | }
|
---|
| 1798 |
|
---|
| 1799 | static void
|
---|
| 1800 | list_disk_geometry(void)
|
---|
| 1801 | {
|
---|
| 1802 | long long bytes = (total_number_of_sectors << 9);
|
---|
| 1803 | long megabytes = bytes/1000000;
|
---|
| 1804 |
|
---|
| 1805 | if (megabytes < 10000)
|
---|
[1770] | 1806 | printf("\nDisk %s: %ld MB, %lld bytes\n",
|
---|
[821] | 1807 | disk_device, megabytes, bytes);
|
---|
| 1808 | else
|
---|
[1770] | 1809 | printf("\nDisk %s: %ld.%ld GB, %lld bytes\n",
|
---|
[821] | 1810 | disk_device, megabytes/1000, (megabytes/100)%10, bytes);
|
---|
[1770] | 1811 | printf("%d heads, %d sectors/track, %d cylinders",
|
---|
[821] | 1812 | heads, sectors, cylinders);
|
---|
| 1813 | if (units_per_sector == 1)
|
---|
[1770] | 1814 | printf(", total %llu sectors",
|
---|
[821] | 1815 | total_number_of_sectors / (sector_size/512));
|
---|
[1770] | 1816 | printf("\nUnits = %s of %d * %d = %d bytes\n\n",
|
---|
[821] | 1817 | str_units(PLURAL),
|
---|
| 1818 | units_per_sector, sector_size, units_per_sector * sector_size);
|
---|
| 1819 | }
|
---|
| 1820 |
|
---|
| 1821 | /*
|
---|
| 1822 | * Check whether partition entries are ordered by their starting positions.
|
---|
| 1823 | * Return 0 if OK. Return i if partition i should have been earlier.
|
---|
| 1824 | * Two separate checks: primary and logical partitions.
|
---|
| 1825 | */
|
---|
| 1826 | static int
|
---|
| 1827 | wrong_p_order(int *prev)
|
---|
| 1828 | {
|
---|
| 1829 | const struct pte *pe;
|
---|
| 1830 | const struct partition *p;
|
---|
[1770] | 1831 | ullong last_p_start_pos = 0, p_start_pos;
|
---|
[821] | 1832 | int i, last_i = 0;
|
---|
| 1833 |
|
---|
[1770] | 1834 | for (i = 0; i < partitions; i++) {
|
---|
[821] | 1835 | if (i == 4) {
|
---|
| 1836 | last_i = 4;
|
---|
| 1837 | last_p_start_pos = 0;
|
---|
| 1838 | }
|
---|
| 1839 | pe = &ptes[i];
|
---|
| 1840 | if ((p = pe->part_table)->sys_ind) {
|
---|
| 1841 | p_start_pos = get_partition_start(pe);
|
---|
| 1842 |
|
---|
| 1843 | if (last_p_start_pos > p_start_pos) {
|
---|
| 1844 | if (prev)
|
---|
| 1845 | *prev = last_i;
|
---|
| 1846 | return i;
|
---|
| 1847 | }
|
---|
| 1848 |
|
---|
| 1849 | last_p_start_pos = p_start_pos;
|
---|
| 1850 | last_i = i;
|
---|
| 1851 | }
|
---|
| 1852 | }
|
---|
| 1853 | return 0;
|
---|
| 1854 | }
|
---|
| 1855 |
|
---|
[1770] | 1856 | #if ENABLE_FEATURE_FDISK_ADVANCED
|
---|
[821] | 1857 | /*
|
---|
| 1858 | * Fix the chain of logicals.
|
---|
| 1859 | * extended_offset is unchanged, the set of sectors used is unchanged
|
---|
| 1860 | * The chain is sorted so that sectors increase, and so that
|
---|
| 1861 | * starting sectors increase.
|
---|
| 1862 | *
|
---|
| 1863 | * After this it may still be that cfdisk doesnt like the table.
|
---|
| 1864 | * (This is because cfdisk considers expanded parts, from link to
|
---|
| 1865 | * end of partition, and these may still overlap.)
|
---|
| 1866 | * Now
|
---|
| 1867 | * sfdisk /dev/hda > ohda; sfdisk /dev/hda < ohda
|
---|
| 1868 | * may help.
|
---|
| 1869 | */
|
---|
| 1870 | static void
|
---|
| 1871 | fix_chain_of_logicals(void)
|
---|
| 1872 | {
|
---|
| 1873 | int j, oj, ojj, sj, sjj;
|
---|
| 1874 | struct partition *pj,*pjj,tmp;
|
---|
| 1875 |
|
---|
| 1876 | /* Stage 1: sort sectors but leave sector of part 4 */
|
---|
| 1877 | /* (Its sector is the global extended_offset.) */
|
---|
| 1878 | stage1:
|
---|
| 1879 | for (j = 5; j < partitions-1; j++) {
|
---|
| 1880 | oj = ptes[j].offset;
|
---|
| 1881 | ojj = ptes[j+1].offset;
|
---|
| 1882 | if (oj > ojj) {
|
---|
| 1883 | ptes[j].offset = ojj;
|
---|
| 1884 | ptes[j+1].offset = oj;
|
---|
| 1885 | pj = ptes[j].part_table;
|
---|
| 1886 | set_start_sect(pj, get_start_sect(pj)+oj-ojj);
|
---|
| 1887 | pjj = ptes[j+1].part_table;
|
---|
| 1888 | set_start_sect(pjj, get_start_sect(pjj)+ojj-oj);
|
---|
| 1889 | set_start_sect(ptes[j-1].ext_pointer,
|
---|
| 1890 | ojj-extended_offset);
|
---|
| 1891 | set_start_sect(ptes[j].ext_pointer,
|
---|
| 1892 | oj-extended_offset);
|
---|
| 1893 | goto stage1;
|
---|
| 1894 | }
|
---|
| 1895 | }
|
---|
| 1896 |
|
---|
| 1897 | /* Stage 2: sort starting sectors */
|
---|
| 1898 | stage2:
|
---|
| 1899 | for (j = 4; j < partitions-1; j++) {
|
---|
| 1900 | pj = ptes[j].part_table;
|
---|
| 1901 | pjj = ptes[j+1].part_table;
|
---|
| 1902 | sj = get_start_sect(pj);
|
---|
| 1903 | sjj = get_start_sect(pjj);
|
---|
| 1904 | oj = ptes[j].offset;
|
---|
| 1905 | ojj = ptes[j+1].offset;
|
---|
| 1906 | if (oj+sj > ojj+sjj) {
|
---|
| 1907 | tmp = *pj;
|
---|
| 1908 | *pj = *pjj;
|
---|
| 1909 | *pjj = tmp;
|
---|
| 1910 | set_start_sect(pj, ojj+sjj-oj);
|
---|
| 1911 | set_start_sect(pjj, oj+sj-ojj);
|
---|
| 1912 | goto stage2;
|
---|
| 1913 | }
|
---|
| 1914 | }
|
---|
| 1915 |
|
---|
| 1916 | /* Probably something was changed */
|
---|
| 1917 | for (j = 4; j < partitions; j++)
|
---|
| 1918 | ptes[j].changed = 1;
|
---|
| 1919 | }
|
---|
| 1920 |
|
---|
| 1921 |
|
---|
| 1922 | static void
|
---|
| 1923 | fix_partition_table_order(void)
|
---|
| 1924 | {
|
---|
| 1925 | struct pte *pei, *pek;
|
---|
| 1926 | int i,k;
|
---|
| 1927 |
|
---|
| 1928 | if (!wrong_p_order(NULL)) {
|
---|
[1770] | 1929 | printf("Ordering is already correct\n\n");
|
---|
[821] | 1930 | return;
|
---|
| 1931 | }
|
---|
| 1932 |
|
---|
| 1933 | while ((i = wrong_p_order(&k)) != 0 && i < 4) {
|
---|
| 1934 | /* partition i should have come earlier, move it */
|
---|
| 1935 | /* We have to move data in the MBR */
|
---|
| 1936 | struct partition *pi, *pk, *pe, pbuf;
|
---|
| 1937 | pei = &ptes[i];
|
---|
| 1938 | pek = &ptes[k];
|
---|
| 1939 |
|
---|
| 1940 | pe = pei->ext_pointer;
|
---|
| 1941 | pei->ext_pointer = pek->ext_pointer;
|
---|
| 1942 | pek->ext_pointer = pe;
|
---|
| 1943 |
|
---|
| 1944 | pi = pei->part_table;
|
---|
| 1945 | pk = pek->part_table;
|
---|
| 1946 |
|
---|
| 1947 | memmove(&pbuf, pi, sizeof(struct partition));
|
---|
| 1948 | memmove(pi, pk, sizeof(struct partition));
|
---|
| 1949 | memmove(pk, &pbuf, sizeof(struct partition));
|
---|
| 1950 |
|
---|
| 1951 | pei->changed = pek->changed = 1;
|
---|
| 1952 | }
|
---|
| 1953 |
|
---|
| 1954 | if (i)
|
---|
| 1955 | fix_chain_of_logicals();
|
---|
| 1956 |
|
---|
| 1957 | printf("Done.\n");
|
---|
| 1958 |
|
---|
| 1959 | }
|
---|
| 1960 | #endif
|
---|
| 1961 |
|
---|
| 1962 | static void
|
---|
| 1963 | list_table(int xtra)
|
---|
| 1964 | {
|
---|
| 1965 | const struct partition *p;
|
---|
| 1966 | int i, w;
|
---|
| 1967 |
|
---|
[1770] | 1968 | if (LABEL_IS_SUN) {
|
---|
[821] | 1969 | sun_list_table(xtra);
|
---|
| 1970 | return;
|
---|
| 1971 | }
|
---|
[1770] | 1972 | if (LABEL_IS_SUN) {
|
---|
[821] | 1973 | sgi_list_table(xtra);
|
---|
| 1974 | return;
|
---|
| 1975 | }
|
---|
| 1976 |
|
---|
| 1977 | list_disk_geometry();
|
---|
| 1978 |
|
---|
[1770] | 1979 | if (LABEL_IS_OSF) {
|
---|
[821] | 1980 | xbsd_print_disklabel(xtra);
|
---|
| 1981 | return;
|
---|
| 1982 | }
|
---|
| 1983 |
|
---|
| 1984 | /* Heuristic: we list partition 3 of /dev/foo as /dev/foo3,
|
---|
| 1985 | but if the device name ends in a digit, say /dev/foo1,
|
---|
| 1986 | then the partition is called /dev/foo1p3. */
|
---|
| 1987 | w = strlen(disk_device);
|
---|
| 1988 | if (w && isdigit(disk_device[w-1]))
|
---|
| 1989 | w++;
|
---|
| 1990 | if (w < 5)
|
---|
| 1991 | w = 5;
|
---|
| 1992 |
|
---|
[1770] | 1993 | // 1 12345678901 12345678901 12345678901 12
|
---|
| 1994 | printf("%*s Boot Start End Blocks Id System\n",
|
---|
| 1995 | w+1, "Device");
|
---|
[821] | 1996 |
|
---|
| 1997 | for (i = 0; i < partitions; i++) {
|
---|
| 1998 | const struct pte *pe = &ptes[i];
|
---|
[1770] | 1999 | ullong psects;
|
---|
| 2000 | ullong pblocks;
|
---|
| 2001 | unsigned podd;
|
---|
[821] | 2002 |
|
---|
| 2003 | p = pe->part_table;
|
---|
[1770] | 2004 | if (!p || is_cleared_partition(p))
|
---|
| 2005 | continue;
|
---|
[821] | 2006 |
|
---|
[1770] | 2007 | psects = get_nr_sects(p);
|
---|
| 2008 | pblocks = psects;
|
---|
| 2009 | podd = 0;
|
---|
| 2010 |
|
---|
| 2011 | if (sector_size < 1024) {
|
---|
| 2012 | pblocks /= (1024 / sector_size);
|
---|
| 2013 | podd = psects % (1024 / sector_size);
|
---|
| 2014 | }
|
---|
| 2015 | if (sector_size > 1024)
|
---|
| 2016 | pblocks *= (sector_size / 1024);
|
---|
| 2017 |
|
---|
| 2018 | printf("%s %c %11llu %11llu %11llu%c %2x %s\n",
|
---|
[821] | 2019 | partname(disk_device, i+1, w+2),
|
---|
[1770] | 2020 | !p->boot_ind ? ' ' : p->boot_ind == ACTIVE_FLAG /* boot flag */
|
---|
| 2021 | ? '*' : '?',
|
---|
| 2022 | (ullong) cround(get_partition_start(pe)), /* start */
|
---|
| 2023 | (ullong) cround(get_partition_start(pe) + psects /* end */
|
---|
[821] | 2024 | - (psects ? 1 : 0)),
|
---|
[1770] | 2025 | (ullong) pblocks, podd ? '+' : ' ', /* odd flag on end */
|
---|
| 2026 | p->sys_ind, /* type id */
|
---|
| 2027 | partition_type(p->sys_ind)); /* type name */
|
---|
| 2028 |
|
---|
| 2029 | check_consistency(p, i);
|
---|
[821] | 2030 | }
|
---|
| 2031 |
|
---|
| 2032 | /* Is partition table in disk order? It need not be, but... */
|
---|
| 2033 | /* partition table entries are not checked for correct order if this
|
---|
| 2034 | is a sgi, sun or aix labeled disk... */
|
---|
[1770] | 2035 | if (LABEL_IS_DOS && wrong_p_order(NULL)) {
|
---|
[821] | 2036 | /* FIXME */
|
---|
[1770] | 2037 | printf("\nPartition table entries are not in disk order\n");
|
---|
[821] | 2038 | }
|
---|
| 2039 | }
|
---|
| 2040 |
|
---|
[1770] | 2041 | #if ENABLE_FEATURE_FDISK_ADVANCED
|
---|
[821] | 2042 | static void
|
---|
| 2043 | x_list_table(int extend)
|
---|
| 2044 | {
|
---|
| 2045 | const struct pte *pe;
|
---|
| 2046 | const struct partition *p;
|
---|
| 2047 | int i;
|
---|
| 2048 |
|
---|
[1770] | 2049 | printf("\nDisk %s: %d heads, %d sectors, %d cylinders\n\n",
|
---|
[821] | 2050 | disk_device, heads, sectors, cylinders);
|
---|
[1770] | 2051 | printf("Nr AF Hd Sec Cyl Hd Sec Cyl Start Size ID\n");
|
---|
| 2052 | for (i = 0; i < partitions; i++) {
|
---|
[821] | 2053 | pe = &ptes[i];
|
---|
| 2054 | p = (extend ? pe->ext_pointer : pe->part_table);
|
---|
| 2055 | if (p != NULL) {
|
---|
| 2056 | printf("%2d %02x%4d%4d%5d%4d%4d%5d%11u%11u %02x\n",
|
---|
| 2057 | i + 1, p->boot_ind, p->head,
|
---|
| 2058 | sector(p->sector),
|
---|
| 2059 | cylinder(p->sector, p->cyl), p->end_head,
|
---|
| 2060 | sector(p->end_sector),
|
---|
| 2061 | cylinder(p->end_sector, p->end_cyl),
|
---|
| 2062 | get_start_sect(p), get_nr_sects(p), p->sys_ind);
|
---|
| 2063 | if (p->sys_ind)
|
---|
| 2064 | check_consistency(p, i);
|
---|
| 2065 | }
|
---|
| 2066 | }
|
---|
| 2067 | }
|
---|
| 2068 | #endif
|
---|
| 2069 |
|
---|
[1770] | 2070 | #if ENABLE_FEATURE_FDISK_WRITABLE
|
---|
[821] | 2071 | static void
|
---|
[1770] | 2072 | fill_bounds(ullong *first, ullong *last)
|
---|
[821] | 2073 | {
|
---|
| 2074 | int i;
|
---|
| 2075 | const struct pte *pe = &ptes[0];
|
---|
| 2076 | const struct partition *p;
|
---|
| 2077 |
|
---|
| 2078 | for (i = 0; i < partitions; pe++,i++) {
|
---|
| 2079 | p = pe->part_table;
|
---|
| 2080 | if (!p->sys_ind || IS_EXTENDED(p->sys_ind)) {
|
---|
| 2081 | first[i] = 0xffffffff;
|
---|
| 2082 | last[i] = 0;
|
---|
| 2083 | } else {
|
---|
| 2084 | first[i] = get_partition_start(pe);
|
---|
| 2085 | last[i] = first[i] + get_nr_sects(p) - 1;
|
---|
| 2086 | }
|
---|
| 2087 | }
|
---|
| 2088 | }
|
---|
| 2089 |
|
---|
| 2090 | static void
|
---|
[1770] | 2091 | check(int n, unsigned h, unsigned s, unsigned c, ullong start)
|
---|
[821] | 2092 | {
|
---|
[1770] | 2093 | ullong total, real_s, real_c;
|
---|
[821] | 2094 |
|
---|
| 2095 | real_s = sector(s) - 1;
|
---|
| 2096 | real_c = cylinder(s, c);
|
---|
| 2097 | total = (real_c * sectors + real_s) * heads + h;
|
---|
| 2098 | if (!total)
|
---|
[1770] | 2099 | printf("Partition %d contains sector 0\n", n);
|
---|
[821] | 2100 | if (h >= heads)
|
---|
[1770] | 2101 | printf("Partition %d: head %d greater than maximum %d\n",
|
---|
[821] | 2102 | n, h + 1, heads);
|
---|
| 2103 | if (real_s >= sectors)
|
---|
[1770] | 2104 | printf("Partition %d: sector %d greater than "
|
---|
| 2105 | "maximum %d\n", n, s, sectors);
|
---|
[821] | 2106 | if (real_c >= cylinders)
|
---|
[1770] | 2107 | printf("Partition %d: cylinder %llu greater than "
|
---|
| 2108 | "maximum %d\n", n, real_c + 1, cylinders);
|
---|
[821] | 2109 | if (cylinders <= 1024 && start != total)
|
---|
[1770] | 2110 | printf("Partition %d: previous sectors %llu disagrees with "
|
---|
| 2111 | "total %llu\n", n, start, total);
|
---|
[821] | 2112 | }
|
---|
| 2113 |
|
---|
| 2114 | static void
|
---|
| 2115 | verify(void)
|
---|
| 2116 | {
|
---|
| 2117 | int i, j;
|
---|
[1770] | 2118 | unsigned total = 1;
|
---|
| 2119 | ullong first[partitions], last[partitions];
|
---|
[821] | 2120 | struct partition *p;
|
---|
| 2121 |
|
---|
| 2122 | if (warn_geometry())
|
---|
| 2123 | return;
|
---|
| 2124 |
|
---|
[1770] | 2125 | if (LABEL_IS_SUN) {
|
---|
[821] | 2126 | verify_sun();
|
---|
| 2127 | return;
|
---|
| 2128 | }
|
---|
[1770] | 2129 | if (LABEL_IS_SGI) {
|
---|
[821] | 2130 | verify_sgi(1);
|
---|
| 2131 | return;
|
---|
| 2132 | }
|
---|
| 2133 |
|
---|
| 2134 | fill_bounds(first, last);
|
---|
| 2135 | for (i = 0; i < partitions; i++) {
|
---|
| 2136 | struct pte *pe = &ptes[i];
|
---|
| 2137 |
|
---|
| 2138 | p = pe->part_table;
|
---|
| 2139 | if (p->sys_ind && !IS_EXTENDED(p->sys_ind)) {
|
---|
| 2140 | check_consistency(p, i);
|
---|
| 2141 | if (get_partition_start(pe) < first[i])
|
---|
[1770] | 2142 | printf("Warning: bad start-of-data in "
|
---|
| 2143 | "partition %d\n", i + 1);
|
---|
[821] | 2144 | check(i + 1, p->end_head, p->end_sector, p->end_cyl,
|
---|
| 2145 | last[i]);
|
---|
| 2146 | total += last[i] + 1 - first[i];
|
---|
[1770] | 2147 | for (j = 0; j < i; j++) {
|
---|
| 2148 | if ((first[i] >= first[j] && first[i] <= last[j])
|
---|
| 2149 | || ((last[i] <= last[j] && last[i] >= first[j]))) {
|
---|
| 2150 | printf("Warning: partition %d overlaps "
|
---|
| 2151 | "partition %d\n", j + 1, i + 1);
|
---|
| 2152 | total += first[i] >= first[j] ?
|
---|
| 2153 | first[i] : first[j];
|
---|
| 2154 | total -= last[i] <= last[j] ?
|
---|
| 2155 | last[i] : last[j];
|
---|
| 2156 | }
|
---|
[821] | 2157 | }
|
---|
| 2158 | }
|
---|
| 2159 | }
|
---|
| 2160 |
|
---|
| 2161 | if (extended_offset) {
|
---|
| 2162 | struct pte *pex = &ptes[ext_index];
|
---|
[1770] | 2163 | ullong e_last = get_start_sect(pex->part_table) +
|
---|
[821] | 2164 | get_nr_sects(pex->part_table) - 1;
|
---|
| 2165 |
|
---|
| 2166 | for (i = 4; i < partitions; i++) {
|
---|
| 2167 | total++;
|
---|
| 2168 | p = ptes[i].part_table;
|
---|
| 2169 | if (!p->sys_ind) {
|
---|
| 2170 | if (i != 4 || i + 1 < partitions)
|
---|
[1770] | 2171 | printf("Warning: partition %d "
|
---|
| 2172 | "is empty\n", i + 1);
|
---|
| 2173 | } else if (first[i] < extended_offset || last[i] > e_last) {
|
---|
| 2174 | printf("Logical partition %d not entirely in "
|
---|
| 2175 | "partition %d\n", i + 1, ext_index + 1);
|
---|
[821] | 2176 | }
|
---|
| 2177 | }
|
---|
| 2178 | }
|
---|
| 2179 |
|
---|
| 2180 | if (total > heads * sectors * cylinders)
|
---|
[1770] | 2181 | printf("Total allocated sectors %d greater than the maximum "
|
---|
| 2182 | "%d\n", total, heads * sectors * cylinders);
|
---|
| 2183 | else {
|
---|
| 2184 | total = heads * sectors * cylinders - total;
|
---|
| 2185 | if (total != 0)
|
---|
| 2186 | printf("%d unallocated sectors\n", total);
|
---|
| 2187 | }
|
---|
[821] | 2188 | }
|
---|
| 2189 |
|
---|
| 2190 | static void
|
---|
| 2191 | add_partition(int n, int sys)
|
---|
| 2192 | {
|
---|
| 2193 | char mesg[256]; /* 48 does not suffice in Japanese */
|
---|
| 2194 | int i, num_read = 0;
|
---|
| 2195 | struct partition *p = ptes[n].part_table;
|
---|
| 2196 | struct partition *q = ptes[ext_index].part_table;
|
---|
[1770] | 2197 | ullong limit, temp;
|
---|
| 2198 | ullong start, stop = 0;
|
---|
| 2199 | ullong first[partitions], last[partitions];
|
---|
[821] | 2200 |
|
---|
| 2201 | if (p && p->sys_ind) {
|
---|
[1770] | 2202 | printf(msg_part_already_defined, n + 1);
|
---|
[821] | 2203 | return;
|
---|
| 2204 | }
|
---|
| 2205 | fill_bounds(first, last);
|
---|
| 2206 | if (n < 4) {
|
---|
| 2207 | start = sector_offset;
|
---|
| 2208 | if (display_in_cyl_units || !total_number_of_sectors)
|
---|
[1770] | 2209 | limit = (ullong) heads * sectors * cylinders - 1;
|
---|
[821] | 2210 | else
|
---|
[1770] | 2211 | limit = total_number_of_sectors - 1;
|
---|
[821] | 2212 | if (extended_offset) {
|
---|
| 2213 | first[ext_index] = extended_offset;
|
---|
| 2214 | last[ext_index] = get_start_sect(q) +
|
---|
| 2215 | get_nr_sects(q) - 1;
|
---|
| 2216 | }
|
---|
| 2217 | } else {
|
---|
| 2218 | start = extended_offset + sector_offset;
|
---|
| 2219 | limit = get_start_sect(q) + get_nr_sects(q) - 1;
|
---|
| 2220 | }
|
---|
| 2221 | if (display_in_cyl_units)
|
---|
| 2222 | for (i = 0; i < partitions; i++)
|
---|
| 2223 | first[i] = (cround(first[i]) - 1) * units_per_sector;
|
---|
| 2224 |
|
---|
[1770] | 2225 | snprintf(mesg, sizeof(mesg), "First %s", str_units(SINGULAR));
|
---|
[821] | 2226 | do {
|
---|
| 2227 | temp = start;
|
---|
| 2228 | for (i = 0; i < partitions; i++) {
|
---|
| 2229 | int lastplusoff;
|
---|
| 2230 |
|
---|
| 2231 | if (start == ptes[i].offset)
|
---|
| 2232 | start += sector_offset;
|
---|
| 2233 | lastplusoff = last[i] + ((n < 4) ? 0 : sector_offset);
|
---|
| 2234 | if (start >= first[i] && start <= lastplusoff)
|
---|
| 2235 | start = lastplusoff + 1;
|
---|
| 2236 | }
|
---|
| 2237 | if (start > limit)
|
---|
| 2238 | break;
|
---|
| 2239 | if (start >= temp+units_per_sector && num_read) {
|
---|
[1770] | 2240 | printf("Sector %lld is already allocated\n", temp);
|
---|
[821] | 2241 | temp = start;
|
---|
| 2242 | num_read = 0;
|
---|
| 2243 | }
|
---|
| 2244 | if (!num_read && start == temp) {
|
---|
[1770] | 2245 | ullong saved_start;
|
---|
[821] | 2246 |
|
---|
| 2247 | saved_start = start;
|
---|
| 2248 | start = read_int(cround(saved_start), cround(saved_start), cround(limit),
|
---|
| 2249 | 0, mesg);
|
---|
| 2250 | if (display_in_cyl_units) {
|
---|
| 2251 | start = (start - 1) * units_per_sector;
|
---|
| 2252 | if (start < saved_start) start = saved_start;
|
---|
| 2253 | }
|
---|
| 2254 | num_read = 1;
|
---|
| 2255 | }
|
---|
| 2256 | } while (start != temp || !num_read);
|
---|
| 2257 | if (n > 4) { /* NOT for fifth partition */
|
---|
| 2258 | struct pte *pe = &ptes[n];
|
---|
| 2259 |
|
---|
| 2260 | pe->offset = start - sector_offset;
|
---|
| 2261 | if (pe->offset == extended_offset) { /* must be corrected */
|
---|
| 2262 | pe->offset++;
|
---|
| 2263 | if (sector_offset == 1)
|
---|
| 2264 | start++;
|
---|
| 2265 | }
|
---|
| 2266 | }
|
---|
| 2267 |
|
---|
| 2268 | for (i = 0; i < partitions; i++) {
|
---|
| 2269 | struct pte *pe = &ptes[i];
|
---|
| 2270 |
|
---|
| 2271 | if (start < pe->offset && limit >= pe->offset)
|
---|
| 2272 | limit = pe->offset - 1;
|
---|
| 2273 | if (start < first[i] && limit >= first[i])
|
---|
| 2274 | limit = first[i] - 1;
|
---|
| 2275 | }
|
---|
| 2276 | if (start > limit) {
|
---|
[1770] | 2277 | printf("No free sectors available\n");
|
---|
[821] | 2278 | if (n > 4)
|
---|
| 2279 | partitions--;
|
---|
| 2280 | return;
|
---|
| 2281 | }
|
---|
| 2282 | if (cround(start) == cround(limit)) {
|
---|
| 2283 | stop = limit;
|
---|
| 2284 | } else {
|
---|
| 2285 | snprintf(mesg, sizeof(mesg),
|
---|
[1770] | 2286 | "Last %s or +size or +sizeM or +sizeK",
|
---|
[821] | 2287 | str_units(SINGULAR));
|
---|
| 2288 | stop = read_int(cround(start), cround(limit), cround(limit),
|
---|
| 2289 | cround(start), mesg);
|
---|
| 2290 | if (display_in_cyl_units) {
|
---|
| 2291 | stop = stop * units_per_sector - 1;
|
---|
| 2292 | if (stop >limit)
|
---|
| 2293 | stop = limit;
|
---|
| 2294 | }
|
---|
| 2295 | }
|
---|
| 2296 |
|
---|
| 2297 | set_partition(n, 0, start, stop, sys);
|
---|
| 2298 | if (n > 4)
|
---|
| 2299 | set_partition(n - 1, 1, ptes[n].offset, stop, EXTENDED);
|
---|
| 2300 |
|
---|
| 2301 | if (IS_EXTENDED(sys)) {
|
---|
| 2302 | struct pte *pe4 = &ptes[4];
|
---|
| 2303 | struct pte *pen = &ptes[n];
|
---|
| 2304 |
|
---|
| 2305 | ext_index = n;
|
---|
| 2306 | pen->ext_pointer = p;
|
---|
| 2307 | pe4->offset = extended_offset = start;
|
---|
[1770] | 2308 | pe4->sectorbuffer = xzalloc(sector_size);
|
---|
[821] | 2309 | pe4->part_table = pt_offset(pe4->sectorbuffer, 0);
|
---|
| 2310 | pe4->ext_pointer = pe4->part_table + 1;
|
---|
| 2311 | pe4->changed = 1;
|
---|
| 2312 | partitions = 5;
|
---|
| 2313 | }
|
---|
| 2314 | }
|
---|
| 2315 |
|
---|
| 2316 | static void
|
---|
| 2317 | add_logical(void)
|
---|
| 2318 | {
|
---|
| 2319 | if (partitions > 5 || ptes[4].part_table->sys_ind) {
|
---|
| 2320 | struct pte *pe = &ptes[partitions];
|
---|
| 2321 |
|
---|
[1770] | 2322 | pe->sectorbuffer = xzalloc(sector_size);
|
---|
[821] | 2323 | pe->part_table = pt_offset(pe->sectorbuffer, 0);
|
---|
| 2324 | pe->ext_pointer = pe->part_table + 1;
|
---|
| 2325 | pe->offset = 0;
|
---|
| 2326 | pe->changed = 1;
|
---|
| 2327 | partitions++;
|
---|
| 2328 | }
|
---|
| 2329 | add_partition(partitions - 1, LINUX_NATIVE);
|
---|
| 2330 | }
|
---|
| 2331 |
|
---|
| 2332 | static void
|
---|
| 2333 | new_partition(void)
|
---|
| 2334 | {
|
---|
| 2335 | int i, free_primary = 0;
|
---|
| 2336 |
|
---|
| 2337 | if (warn_geometry())
|
---|
| 2338 | return;
|
---|
| 2339 |
|
---|
[1770] | 2340 | if (LABEL_IS_SUN) {
|
---|
[821] | 2341 | add_sun_partition(get_partition(0, partitions), LINUX_NATIVE);
|
---|
| 2342 | return;
|
---|
| 2343 | }
|
---|
[1770] | 2344 | if (LABEL_IS_SGI) {
|
---|
[821] | 2345 | sgi_add_partition(get_partition(0, partitions), LINUX_NATIVE);
|
---|
| 2346 | return;
|
---|
| 2347 | }
|
---|
[1770] | 2348 | if (LABEL_IS_AIX) {
|
---|
| 2349 | printf("Sorry - this fdisk cannot handle AIX disk labels.\n"
|
---|
| 2350 | "If you want to add DOS-type partitions, create a new empty DOS partition\n"
|
---|
| 2351 | "table first (use 'o'). This will destroy the present disk contents.\n");
|
---|
[821] | 2352 | return;
|
---|
| 2353 | }
|
---|
| 2354 |
|
---|
| 2355 | for (i = 0; i < 4; i++)
|
---|
| 2356 | free_primary += !ptes[i].part_table->sys_ind;
|
---|
| 2357 |
|
---|
| 2358 | if (!free_primary && partitions >= MAXIMUM_PARTS) {
|
---|
[1770] | 2359 | printf("The maximum number of partitions has been created\n");
|
---|
[821] | 2360 | return;
|
---|
| 2361 | }
|
---|
| 2362 |
|
---|
| 2363 | if (!free_primary) {
|
---|
| 2364 | if (extended_offset)
|
---|
| 2365 | add_logical();
|
---|
| 2366 | else
|
---|
[1770] | 2367 | printf("You must delete some partition and add "
|
---|
| 2368 | "an extended partition first\n");
|
---|
[821] | 2369 | } else {
|
---|
[1770] | 2370 | char c, line[80];
|
---|
| 2371 | snprintf(line, sizeof(line),
|
---|
| 2372 | "Command action\n"
|
---|
| 2373 | " %s\n"
|
---|
| 2374 | " p primary partition (1-4)\n",
|
---|
| 2375 | (extended_offset ?
|
---|
| 2376 | "l logical (5 or over)" : "e extended"));
|
---|
[821] | 2377 | while (1) {
|
---|
[1770] | 2378 | c = read_nonempty(line);
|
---|
| 2379 | if (c == 'p' || c == 'P') {
|
---|
[821] | 2380 | i = get_nonexisting_partition(0, 4);
|
---|
| 2381 | if (i >= 0)
|
---|
| 2382 | add_partition(i, LINUX_NATIVE);
|
---|
| 2383 | return;
|
---|
| 2384 | }
|
---|
[1770] | 2385 | if (c == 'l' && extended_offset) {
|
---|
[821] | 2386 | add_logical();
|
---|
| 2387 | return;
|
---|
| 2388 | }
|
---|
[1770] | 2389 | if (c == 'e' && !extended_offset) {
|
---|
[821] | 2390 | i = get_nonexisting_partition(0, 4);
|
---|
| 2391 | if (i >= 0)
|
---|
| 2392 | add_partition(i, EXTENDED);
|
---|
| 2393 | return;
|
---|
| 2394 | }
|
---|
[1770] | 2395 | printf("Invalid partition number "
|
---|
| 2396 | "for type '%c'\n", c);
|
---|
[821] | 2397 | }
|
---|
| 2398 | }
|
---|
| 2399 | }
|
---|
| 2400 |
|
---|
| 2401 | static void
|
---|
| 2402 | write_table(void)
|
---|
| 2403 | {
|
---|
| 2404 | int i;
|
---|
| 2405 |
|
---|
[1770] | 2406 | if (LABEL_IS_DOS) {
|
---|
[821] | 2407 | for (i = 0; i < 3; i++)
|
---|
| 2408 | if (ptes[i].changed)
|
---|
| 2409 | ptes[3].changed = 1;
|
---|
| 2410 | for (i = 3; i < partitions; i++) {
|
---|
| 2411 | struct pte *pe = &ptes[i];
|
---|
| 2412 |
|
---|
| 2413 | if (pe->changed) {
|
---|
| 2414 | write_part_table_flag(pe->sectorbuffer);
|
---|
| 2415 | write_sector(pe->offset, pe->sectorbuffer);
|
---|
| 2416 | }
|
---|
| 2417 | }
|
---|
| 2418 | }
|
---|
[1770] | 2419 | else if (LABEL_IS_SGI) {
|
---|
[821] | 2420 | /* no test on change? the printf below might be mistaken */
|
---|
| 2421 | sgi_write_table();
|
---|
| 2422 | }
|
---|
[1770] | 2423 | else if (LABEL_IS_SUN) {
|
---|
[821] | 2424 | int needw = 0;
|
---|
| 2425 |
|
---|
| 2426 | for (i = 0; i < 8; i++)
|
---|
| 2427 | if (ptes[i].changed)
|
---|
| 2428 | needw = 1;
|
---|
| 2429 | if (needw)
|
---|
| 2430 | sun_write_table();
|
---|
| 2431 | }
|
---|
| 2432 |
|
---|
[1770] | 2433 | printf("The partition table has been altered!\n\n");
|
---|
[821] | 2434 | reread_partition_table(1);
|
---|
| 2435 | }
|
---|
| 2436 |
|
---|
| 2437 | static void
|
---|
| 2438 | reread_partition_table(int leave)
|
---|
| 2439 | {
|
---|
| 2440 | int i;
|
---|
| 2441 |
|
---|
[1770] | 2442 | printf("Calling ioctl() to re-read partition table\n");
|
---|
[821] | 2443 | sync();
|
---|
[1770] | 2444 | /* sleep(2); Huh? */
|
---|
| 2445 | i = ioctl_or_perror(fd, BLKRRPART, NULL,
|
---|
| 2446 | "WARNING: rereading partition table "
|
---|
| 2447 | "failed, kernel still uses old table");
|
---|
| 2448 | #if 0
|
---|
[821] | 2449 | if (dos_changed)
|
---|
| 2450 | printf(
|
---|
[1770] | 2451 | "\nWARNING: If you have created or modified any DOS 6.x\n"
|
---|
[821] | 2452 | "partitions, please see the fdisk manual page for additional\n"
|
---|
[1770] | 2453 | "information\n");
|
---|
| 2454 | #endif
|
---|
[821] | 2455 |
|
---|
| 2456 | if (leave) {
|
---|
[1770] | 2457 | if (ENABLE_FEATURE_CLEAN_UP)
|
---|
| 2458 | close(fd);
|
---|
| 2459 | exit(i != 0);
|
---|
[821] | 2460 | }
|
---|
| 2461 | }
|
---|
[1770] | 2462 | #endif /* FEATURE_FDISK_WRITABLE */
|
---|
[821] | 2463 |
|
---|
[1770] | 2464 | #if ENABLE_FEATURE_FDISK_ADVANCED
|
---|
[821] | 2465 | #define MAX_PER_LINE 16
|
---|
| 2466 | static void
|
---|
| 2467 | print_buffer(char *pbuffer)
|
---|
| 2468 | {
|
---|
| 2469 | int i,l;
|
---|
| 2470 |
|
---|
| 2471 | for (i = 0, l = 0; i < sector_size; i++, l++) {
|
---|
| 2472 | if (l == 0)
|
---|
| 2473 | printf("0x%03X:", i);
|
---|
| 2474 | printf(" %02X", (unsigned char) pbuffer[i]);
|
---|
| 2475 | if (l == MAX_PER_LINE - 1) {
|
---|
[1770] | 2476 | puts("");
|
---|
[821] | 2477 | l = -1;
|
---|
| 2478 | }
|
---|
| 2479 | }
|
---|
| 2480 | if (l > 0)
|
---|
[1770] | 2481 | puts("");
|
---|
| 2482 | puts("");
|
---|
[821] | 2483 | }
|
---|
| 2484 |
|
---|
| 2485 | static void
|
---|
| 2486 | print_raw(void)
|
---|
| 2487 | {
|
---|
| 2488 | int i;
|
---|
| 2489 |
|
---|
[1770] | 2490 | printf("Device: %s\n", disk_device);
|
---|
| 2491 | if (LABEL_IS_SGI || LABEL_IS_SUN)
|
---|
[821] | 2492 | print_buffer(MBRbuffer);
|
---|
[1770] | 2493 | else {
|
---|
[821] | 2494 | for (i = 3; i < partitions; i++)
|
---|
| 2495 | print_buffer(ptes[i].sectorbuffer);
|
---|
[1770] | 2496 | }
|
---|
[821] | 2497 | }
|
---|
| 2498 |
|
---|
| 2499 | static void
|
---|
| 2500 | move_begin(int i)
|
---|
| 2501 | {
|
---|
| 2502 | struct pte *pe = &ptes[i];
|
---|
| 2503 | struct partition *p = pe->part_table;
|
---|
[1770] | 2504 | ullong new, first;
|
---|
[821] | 2505 |
|
---|
| 2506 | if (warn_geometry())
|
---|
| 2507 | return;
|
---|
| 2508 | if (!p->sys_ind || !get_nr_sects(p) || IS_EXTENDED(p->sys_ind)) {
|
---|
[1770] | 2509 | printf("Partition %d has no data area\n", i + 1);
|
---|
[821] | 2510 | return;
|
---|
| 2511 | }
|
---|
| 2512 | first = get_partition_start(pe);
|
---|
| 2513 | new = read_int(first, first, first + get_nr_sects(p) - 1, first,
|
---|
[1770] | 2514 | "New beginning of data") - pe->offset;
|
---|
[821] | 2515 |
|
---|
| 2516 | if (new != get_nr_sects(p)) {
|
---|
| 2517 | first = get_nr_sects(p) + get_start_sect(p) - new;
|
---|
| 2518 | set_nr_sects(p, first);
|
---|
| 2519 | set_start_sect(p, new);
|
---|
| 2520 | pe->changed = 1;
|
---|
| 2521 | }
|
---|
| 2522 | }
|
---|
| 2523 |
|
---|
| 2524 | static void
|
---|
| 2525 | xselect(void)
|
---|
| 2526 | {
|
---|
| 2527 | char c;
|
---|
| 2528 |
|
---|
| 2529 | while (1) {
|
---|
| 2530 | putchar('\n');
|
---|
[1770] | 2531 | c = tolower(read_nonempty("Expert command (m for help): "));
|
---|
[821] | 2532 | switch (c) {
|
---|
| 2533 | case 'a':
|
---|
[1770] | 2534 | if (LABEL_IS_SUN)
|
---|
[821] | 2535 | sun_set_alt_cyl();
|
---|
| 2536 | break;
|
---|
| 2537 | case 'b':
|
---|
[1770] | 2538 | if (LABEL_IS_DOS)
|
---|
[821] | 2539 | move_begin(get_partition(0, partitions));
|
---|
| 2540 | break;
|
---|
| 2541 | case 'c':
|
---|
| 2542 | user_cylinders = cylinders =
|
---|
| 2543 | read_int(1, cylinders, 1048576, 0,
|
---|
[1770] | 2544 | "Number of cylinders");
|
---|
| 2545 | if (LABEL_IS_SUN)
|
---|
[821] | 2546 | sun_set_ncyl(cylinders);
|
---|
[1770] | 2547 | if (LABEL_IS_DOS)
|
---|
[821] | 2548 | warn_cylinders();
|
---|
| 2549 | break;
|
---|
| 2550 | case 'd':
|
---|
| 2551 | print_raw();
|
---|
| 2552 | break;
|
---|
| 2553 | case 'e':
|
---|
[1770] | 2554 | if (LABEL_IS_SGI)
|
---|
[821] | 2555 | sgi_set_xcyl();
|
---|
[1770] | 2556 | else if (LABEL_IS_SUN)
|
---|
[821] | 2557 | sun_set_xcyl();
|
---|
[1770] | 2558 | else if (LABEL_IS_DOS)
|
---|
[821] | 2559 | x_list_table(1);
|
---|
| 2560 | break;
|
---|
| 2561 | case 'f':
|
---|
[1770] | 2562 | if (LABEL_IS_DOS)
|
---|
[821] | 2563 | fix_partition_table_order();
|
---|
| 2564 | break;
|
---|
| 2565 | case 'g':
|
---|
[1770] | 2566 | #if ENABLE_FEATURE_SGI_LABEL
|
---|
[821] | 2567 | create_sgilabel();
|
---|
| 2568 | #endif
|
---|
| 2569 | break;
|
---|
| 2570 | case 'h':
|
---|
| 2571 | user_heads = heads = read_int(1, heads, 256, 0,
|
---|
[1770] | 2572 | "Number of heads");
|
---|
[821] | 2573 | update_units();
|
---|
| 2574 | break;
|
---|
| 2575 | case 'i':
|
---|
[1770] | 2576 | if (LABEL_IS_SUN)
|
---|
[821] | 2577 | sun_set_ilfact();
|
---|
| 2578 | break;
|
---|
| 2579 | case 'o':
|
---|
[1770] | 2580 | if (LABEL_IS_SUN)
|
---|
[821] | 2581 | sun_set_rspeed();
|
---|
| 2582 | break;
|
---|
| 2583 | case 'p':
|
---|
[1770] | 2584 | if (LABEL_IS_SUN)
|
---|
[821] | 2585 | list_table(1);
|
---|
| 2586 | else
|
---|
| 2587 | x_list_table(0);
|
---|
| 2588 | break;
|
---|
| 2589 | case 'q':
|
---|
| 2590 | close(fd);
|
---|
[1770] | 2591 | puts("");
|
---|
[821] | 2592 | exit(0);
|
---|
| 2593 | case 'r':
|
---|
| 2594 | return;
|
---|
| 2595 | case 's':
|
---|
| 2596 | user_sectors = sectors = read_int(1, sectors, 63, 0,
|
---|
[1770] | 2597 | "Number of sectors");
|
---|
[821] | 2598 | if (dos_compatible_flag) {
|
---|
| 2599 | sector_offset = sectors;
|
---|
[1770] | 2600 | printf("Warning: setting sector offset for DOS "
|
---|
| 2601 | "compatiblity\n");
|
---|
[821] | 2602 | }
|
---|
| 2603 | update_units();
|
---|
| 2604 | break;
|
---|
| 2605 | case 'v':
|
---|
| 2606 | verify();
|
---|
| 2607 | break;
|
---|
| 2608 | case 'w':
|
---|
| 2609 | write_table(); /* does not return */
|
---|
| 2610 | break;
|
---|
| 2611 | case 'y':
|
---|
[1770] | 2612 | if (LABEL_IS_SUN)
|
---|
[821] | 2613 | sun_set_pcylcount();
|
---|
| 2614 | break;
|
---|
| 2615 | default:
|
---|
| 2616 | xmenu();
|
---|
| 2617 | }
|
---|
| 2618 | }
|
---|
| 2619 | }
|
---|
| 2620 | #endif /* ADVANCED mode */
|
---|
| 2621 |
|
---|
| 2622 | static int
|
---|
| 2623 | is_ide_cdrom_or_tape(const char *device)
|
---|
| 2624 | {
|
---|
| 2625 | FILE *procf;
|
---|
| 2626 | char buf[100];
|
---|
| 2627 | struct stat statbuf;
|
---|
| 2628 | int is_ide = 0;
|
---|
| 2629 |
|
---|
| 2630 | /* No device was given explicitly, and we are trying some
|
---|
| 2631 | likely things. But opening /dev/hdc may produce errors like
|
---|
| 2632 | "hdc: tray open or drive not ready"
|
---|
| 2633 | if it happens to be a CD-ROM drive. It even happens that
|
---|
| 2634 | the process hangs on the attempt to read a music CD.
|
---|
| 2635 | So try to be careful. This only works since 2.1.73. */
|
---|
| 2636 |
|
---|
| 2637 | if (strncmp("/dev/hd", device, 7))
|
---|
| 2638 | return 0;
|
---|
| 2639 |
|
---|
| 2640 | snprintf(buf, sizeof(buf), "/proc/ide/%s/media", device+5);
|
---|
| 2641 | procf = fopen(buf, "r");
|
---|
| 2642 | if (procf != NULL && fgets(buf, sizeof(buf), procf))
|
---|
| 2643 | is_ide = (!strncmp(buf, "cdrom", 5) ||
|
---|
| 2644 | !strncmp(buf, "tape", 4));
|
---|
| 2645 | else
|
---|
| 2646 | /* Now when this proc file does not exist, skip the
|
---|
| 2647 | device when it is read-only. */
|
---|
| 2648 | if (stat(device, &statbuf) == 0)
|
---|
| 2649 | is_ide = ((statbuf.st_mode & 0222) == 0);
|
---|
| 2650 |
|
---|
| 2651 | if (procf)
|
---|
| 2652 | fclose(procf);
|
---|
| 2653 | return is_ide;
|
---|
| 2654 | }
|
---|
| 2655 |
|
---|
| 2656 |
|
---|
| 2657 | static void
|
---|
[1770] | 2658 | trydev(const char *device, int user_specified)
|
---|
[821] | 2659 | {
|
---|
| 2660 | int gb;
|
---|
| 2661 |
|
---|
| 2662 | disk_device = device;
|
---|
| 2663 | if (setjmp(listingbuf))
|
---|
| 2664 | return;
|
---|
| 2665 | if (!user_specified)
|
---|
| 2666 | if (is_ide_cdrom_or_tape(device))
|
---|
| 2667 | return;
|
---|
[1770] | 2668 | fd = open(disk_device, type_open);
|
---|
| 2669 | if (fd >= 0) {
|
---|
[821] | 2670 | gb = get_boot(try_only);
|
---|
| 2671 | if (gb > 0) { /* I/O error */
|
---|
| 2672 | close(fd);
|
---|
| 2673 | } else if (gb < 0) { /* no DOS signature */
|
---|
| 2674 | list_disk_geometry();
|
---|
[1770] | 2675 | if (LABEL_IS_AIX) {
|
---|
[821] | 2676 | return;
|
---|
| 2677 | }
|
---|
[1770] | 2678 | #if ENABLE_FEATURE_OSF_LABEL
|
---|
| 2679 | if (bsd_trydev(device) < 0)
|
---|
[821] | 2680 | #endif
|
---|
[1770] | 2681 | printf("Disk %s doesn't contain a valid "
|
---|
| 2682 | "partition table\n", device);
|
---|
[821] | 2683 | close(fd);
|
---|
| 2684 | } else {
|
---|
| 2685 | close(fd);
|
---|
| 2686 | list_table(0);
|
---|
[1770] | 2687 | #if ENABLE_FEATURE_FDISK_WRITABLE
|
---|
| 2688 | if (!LABEL_IS_SUN && partitions > 4){
|
---|
[821] | 2689 | delete_partition(ext_index);
|
---|
| 2690 | }
|
---|
| 2691 | #endif
|
---|
| 2692 | }
|
---|
| 2693 | } else {
|
---|
| 2694 | /* Ignore other errors, since we try IDE
|
---|
| 2695 | and SCSI hard disks which may not be
|
---|
| 2696 | installed on the system. */
|
---|
| 2697 | if (errno == EACCES) {
|
---|
[1770] | 2698 | printf("Cannot open %s\n", device);
|
---|
[821] | 2699 | return;
|
---|
| 2700 | }
|
---|
| 2701 | }
|
---|
| 2702 | }
|
---|
| 2703 |
|
---|
| 2704 | /* for fdisk -l: try all things in /proc/partitions
|
---|
| 2705 | that look like a partition name (do not end in a digit) */
|
---|
| 2706 | static void
|
---|
| 2707 | tryprocpt(void)
|
---|
| 2708 | {
|
---|
| 2709 | FILE *procpt;
|
---|
| 2710 | char line[100], ptname[100], devname[120], *s;
|
---|
| 2711 | int ma, mi, sz;
|
---|
| 2712 |
|
---|
[1770] | 2713 | procpt = fopen_or_warn("/proc/partitions", "r");
|
---|
[821] | 2714 |
|
---|
| 2715 | while (fgets(line, sizeof(line), procpt)) {
|
---|
| 2716 | if (sscanf(line, " %d %d %d %[^\n ]",
|
---|
| 2717 | &ma, &mi, &sz, ptname) != 4)
|
---|
| 2718 | continue;
|
---|
| 2719 | for (s = ptname; *s; s++);
|
---|
| 2720 | if (isdigit(s[-1]))
|
---|
| 2721 | continue;
|
---|
| 2722 | sprintf(devname, "/dev/%s", ptname);
|
---|
[1770] | 2723 | trydev(devname, 0);
|
---|
[821] | 2724 | }
|
---|
[1770] | 2725 | #if ENABLE_FEATURE_CLEAN_UP
|
---|
[821] | 2726 | fclose(procpt);
|
---|
| 2727 | #endif
|
---|
| 2728 | }
|
---|
| 2729 |
|
---|
[1770] | 2730 | #if ENABLE_FEATURE_FDISK_WRITABLE
|
---|
[821] | 2731 | static void
|
---|
| 2732 | unknown_command(int c)
|
---|
| 2733 | {
|
---|
[1770] | 2734 | printf("%c: unknown command\n", c);
|
---|
[821] | 2735 | }
|
---|
| 2736 | #endif
|
---|
| 2737 |
|
---|
[1770] | 2738 | int fdisk_main(int argc, char **argv);
|
---|
[821] | 2739 | int fdisk_main(int argc, char **argv)
|
---|
| 2740 | {
|
---|
[1770] | 2741 | char *str_b, *str_C, *str_H, *str_S;
|
---|
| 2742 | unsigned opt;
|
---|
[821] | 2743 | /*
|
---|
| 2744 | * fdisk -v
|
---|
| 2745 | * fdisk -l [-b sectorsize] [-u] device ...
|
---|
| 2746 | * fdisk -s [partition] ...
|
---|
| 2747 | * fdisk [-b sectorsize] [-u] device
|
---|
| 2748 | *
|
---|
| 2749 | * Options -C, -H, -S set the geometry.
|
---|
| 2750 | */
|
---|
[1770] | 2751 | enum {
|
---|
| 2752 | OPT_b = 1 << 0,
|
---|
| 2753 | OPT_C = 1 << 1,
|
---|
| 2754 | OPT_H = 1 << 2,
|
---|
| 2755 | OPT_l = 1 << 3,
|
---|
| 2756 | OPT_S = 1 << 4,
|
---|
| 2757 | OPT_u = 1 << 5,
|
---|
| 2758 | OPT_s = (1 << 6) * ENABLE_FEATURE_FDISK_BLKSIZE,
|
---|
| 2759 | };
|
---|
| 2760 |
|
---|
| 2761 | PTR_TO_GLOBALS = xzalloc(sizeof(G));
|
---|
| 2762 |
|
---|
| 2763 | opt = getopt32(argv, "b:C:H:lS:u" USE_FEATURE_FDISK_BLKSIZE("s"),
|
---|
| 2764 | &str_b, &str_C, &str_H, &str_S);
|
---|
| 2765 | argc -= optind;
|
---|
| 2766 | argv += optind;
|
---|
| 2767 | if (opt & OPT_b) { // -b
|
---|
| 2768 | /* Ugly: this sector size is really per device,
|
---|
| 2769 | so cannot be combined with multiple disks,
|
---|
| 2770 | and the same goes for the C/H/S options.
|
---|
| 2771 | */
|
---|
| 2772 | sector_size = xatoi_u(str_b);
|
---|
| 2773 | if (sector_size != 512 && sector_size != 1024 &&
|
---|
| 2774 | sector_size != 2048)
|
---|
[821] | 2775 | bb_show_usage();
|
---|
[1770] | 2776 | sector_offset = 2;
|
---|
| 2777 | user_set_sector_size = 1;
|
---|
[821] | 2778 | }
|
---|
[1770] | 2779 | if (opt & OPT_C) user_cylinders = xatoi_u(str_C); // -C
|
---|
| 2780 | if (opt & OPT_H) { // -H
|
---|
| 2781 | user_heads = xatoi_u(str_H);
|
---|
| 2782 | if (user_heads <= 0 || user_heads >= 256)
|
---|
| 2783 | user_heads = 0;
|
---|
| 2784 | }
|
---|
| 2785 | //if (opt & OPT_l) // -l
|
---|
| 2786 | if (opt & OPT_S) { // -S
|
---|
| 2787 | user_sectors = xatoi_u(str_S);
|
---|
| 2788 | if (user_sectors <= 0 || user_sectors >= 64)
|
---|
| 2789 | user_sectors = 0;
|
---|
| 2790 | }
|
---|
| 2791 | if (opt & OPT_u) display_in_cyl_units = 0; // -u
|
---|
| 2792 | //if (opt & OPT_s) // -s
|
---|
[821] | 2793 |
|
---|
[1770] | 2794 | if (user_set_sector_size && argc != 1)
|
---|
| 2795 | printf("Warning: the -b (set sector size) option should"
|
---|
| 2796 | " be used with one specified device\n");
|
---|
[821] | 2797 |
|
---|
[1770] | 2798 | #if ENABLE_FEATURE_FDISK_WRITABLE
|
---|
| 2799 | if (opt & OPT_l) {
|
---|
[821] | 2800 | nowarn = 1;
|
---|
| 2801 | #endif
|
---|
| 2802 | type_open = O_RDONLY;
|
---|
[1770] | 2803 | if (argc > 0) {
|
---|
[821] | 2804 | int k;
|
---|
[1770] | 2805 | #if defined(__GNUC__)
|
---|
[821] | 2806 | /* avoid gcc warning:
|
---|
| 2807 | variable `k' might be clobbered by `longjmp' */
|
---|
| 2808 | (void)&k;
|
---|
| 2809 | #endif
|
---|
| 2810 | listing = 1;
|
---|
[1770] | 2811 | for (k = 0; k < argc; k++)
|
---|
| 2812 | trydev(argv[k], 1);
|
---|
[821] | 2813 | } else {
|
---|
| 2814 | /* we no longer have default device names */
|
---|
| 2815 | /* but, we can use /proc/partitions instead */
|
---|
| 2816 | tryprocpt();
|
---|
| 2817 | }
|
---|
| 2818 | return 0;
|
---|
[1770] | 2819 | #if ENABLE_FEATURE_FDISK_WRITABLE
|
---|
[821] | 2820 | }
|
---|
| 2821 | #endif
|
---|
| 2822 |
|
---|
[1770] | 2823 | #if ENABLE_FEATURE_FDISK_BLKSIZE
|
---|
| 2824 | if (opt & OPT_s) {
|
---|
[821] | 2825 | long size;
|
---|
| 2826 | int j;
|
---|
| 2827 |
|
---|
| 2828 | nowarn = 1;
|
---|
| 2829 | type_open = O_RDONLY;
|
---|
| 2830 |
|
---|
[1770] | 2831 | if (argc <= 0)
|
---|
[821] | 2832 | bb_show_usage();
|
---|
| 2833 |
|
---|
[1770] | 2834 | for (j = 0; j < argc; j++) {
|
---|
[821] | 2835 | disk_device = argv[j];
|
---|
[1770] | 2836 | fd = open(disk_device, type_open);
|
---|
| 2837 | if (fd < 0)
|
---|
[821] | 2838 | fdisk_fatal(unable_to_open);
|
---|
| 2839 | if (ioctl(fd, BLKGETSIZE, &size))
|
---|
| 2840 | fdisk_fatal(ioctl_error);
|
---|
| 2841 | close(fd);
|
---|
[1770] | 2842 | if (argc == 1)
|
---|
[821] | 2843 | printf("%ld\n", size/2);
|
---|
| 2844 | else
|
---|
| 2845 | printf("%s: %ld\n", argv[j], size/2);
|
---|
| 2846 | }
|
---|
| 2847 | return 0;
|
---|
| 2848 | }
|
---|
| 2849 | #endif
|
---|
| 2850 |
|
---|
[1770] | 2851 | #if ENABLE_FEATURE_FDISK_WRITABLE
|
---|
| 2852 | if (argc != 1)
|
---|
[821] | 2853 | bb_show_usage();
|
---|
| 2854 |
|
---|
[1770] | 2855 | disk_device = argv[0];
|
---|
[821] | 2856 | get_boot(fdisk);
|
---|
| 2857 |
|
---|
[1770] | 2858 | if (LABEL_IS_OSF) {
|
---|
[821] | 2859 | /* OSF label, and no DOS label */
|
---|
[1770] | 2860 | printf("Detected an OSF/1 disklabel on %s, entering "
|
---|
| 2861 | "disklabel mode\n", disk_device);
|
---|
| 2862 | bsd_select();
|
---|
[821] | 2863 | /*Why do we do this? It seems to be counter-intuitive*/
|
---|
| 2864 | current_label_type = label_dos;
|
---|
| 2865 | /* If we return we may want to make an empty DOS label? */
|
---|
| 2866 | }
|
---|
| 2867 |
|
---|
| 2868 | while (1) {
|
---|
[1770] | 2869 | int c;
|
---|
[821] | 2870 | putchar('\n');
|
---|
[1770] | 2871 | c = tolower(read_nonempty("Command (m for help): "));
|
---|
[821] | 2872 | switch (c) {
|
---|
| 2873 | case 'a':
|
---|
[1770] | 2874 | if (LABEL_IS_DOS)
|
---|
[821] | 2875 | toggle_active(get_partition(1, partitions));
|
---|
[1770] | 2876 | else if (LABEL_IS_SUN)
|
---|
[821] | 2877 | toggle_sunflags(get_partition(1, partitions),
|
---|
| 2878 | 0x01);
|
---|
[1770] | 2879 | else if (LABEL_IS_SGI)
|
---|
[821] | 2880 | sgi_set_bootpartition(
|
---|
| 2881 | get_partition(1, partitions));
|
---|
| 2882 | else
|
---|
| 2883 | unknown_command(c);
|
---|
| 2884 | break;
|
---|
| 2885 | case 'b':
|
---|
[1770] | 2886 | if (LABEL_IS_SGI) {
|
---|
| 2887 | printf("\nThe current boot file is: %s\n",
|
---|
[821] | 2888 | sgi_get_bootfile());
|
---|
[1770] | 2889 | if (read_maybe_empty("Please enter the name of the "
|
---|
| 2890 | "new boot file: ") == '\n')
|
---|
| 2891 | printf("Boot file unchanged\n");
|
---|
[821] | 2892 | else
|
---|
| 2893 | sgi_set_bootfile(line_ptr);
|
---|
[1770] | 2894 | }
|
---|
| 2895 | #if ENABLE_FEATURE_OSF_LABEL
|
---|
| 2896 | else
|
---|
| 2897 | bsd_select();
|
---|
[821] | 2898 | #endif
|
---|
| 2899 | break;
|
---|
| 2900 | case 'c':
|
---|
[1770] | 2901 | if (LABEL_IS_DOS)
|
---|
[821] | 2902 | toggle_dos_compatibility_flag();
|
---|
[1770] | 2903 | else if (LABEL_IS_SUN)
|
---|
[821] | 2904 | toggle_sunflags(get_partition(1, partitions),
|
---|
| 2905 | 0x10);
|
---|
[1770] | 2906 | else if (LABEL_IS_SGI)
|
---|
[821] | 2907 | sgi_set_swappartition(
|
---|
| 2908 | get_partition(1, partitions));
|
---|
| 2909 | else
|
---|
| 2910 | unknown_command(c);
|
---|
| 2911 | break;
|
---|
| 2912 | case 'd':
|
---|
| 2913 | {
|
---|
| 2914 | int j;
|
---|
| 2915 | /* If sgi_label then don't use get_existing_partition,
|
---|
| 2916 | let the user select a partition, since
|
---|
| 2917 | get_existing_partition() only works for Linux-like
|
---|
| 2918 | partition tables */
|
---|
[1770] | 2919 | if (!LABEL_IS_SGI) {
|
---|
[821] | 2920 | j = get_existing_partition(1, partitions);
|
---|
| 2921 | } else {
|
---|
| 2922 | j = get_partition(1, partitions);
|
---|
| 2923 | }
|
---|
| 2924 | if (j >= 0)
|
---|
| 2925 | delete_partition(j);
|
---|
| 2926 | }
|
---|
| 2927 | break;
|
---|
| 2928 | case 'i':
|
---|
[1770] | 2929 | if (LABEL_IS_SGI)
|
---|
[821] | 2930 | create_sgiinfo();
|
---|
| 2931 | else
|
---|
| 2932 | unknown_command(c);
|
---|
| 2933 | case 'l':
|
---|
| 2934 | list_types(get_sys_types());
|
---|
| 2935 | break;
|
---|
| 2936 | case 'm':
|
---|
| 2937 | menu();
|
---|
| 2938 | break;
|
---|
| 2939 | case 'n':
|
---|
| 2940 | new_partition();
|
---|
| 2941 | break;
|
---|
| 2942 | case 'o':
|
---|
| 2943 | create_doslabel();
|
---|
| 2944 | break;
|
---|
| 2945 | case 'p':
|
---|
| 2946 | list_table(0);
|
---|
| 2947 | break;
|
---|
| 2948 | case 'q':
|
---|
| 2949 | close(fd);
|
---|
[1770] | 2950 | puts("");
|
---|
[821] | 2951 | return 0;
|
---|
| 2952 | case 's':
|
---|
[1770] | 2953 | #if ENABLE_FEATURE_SUN_LABEL
|
---|
[821] | 2954 | create_sunlabel();
|
---|
| 2955 | #endif
|
---|
| 2956 | break;
|
---|
| 2957 | case 't':
|
---|
| 2958 | change_sysid();
|
---|
| 2959 | break;
|
---|
| 2960 | case 'u':
|
---|
| 2961 | change_units();
|
---|
| 2962 | break;
|
---|
| 2963 | case 'v':
|
---|
| 2964 | verify();
|
---|
| 2965 | break;
|
---|
| 2966 | case 'w':
|
---|
| 2967 | write_table(); /* does not return */
|
---|
| 2968 | break;
|
---|
[1770] | 2969 | #if ENABLE_FEATURE_FDISK_ADVANCED
|
---|
[821] | 2970 | case 'x':
|
---|
[1770] | 2971 | if (LABEL_IS_SGI) {
|
---|
| 2972 | printf("\n\tSorry, no experts menu for SGI "
|
---|
| 2973 | "partition tables available\n\n");
|
---|
[821] | 2974 | } else
|
---|
| 2975 | xselect();
|
---|
| 2976 | break;
|
---|
| 2977 | #endif
|
---|
| 2978 | default:
|
---|
| 2979 | unknown_command(c);
|
---|
| 2980 | menu();
|
---|
| 2981 | }
|
---|
| 2982 | }
|
---|
| 2983 | return 0;
|
---|
[1770] | 2984 | #endif /* FEATURE_FDISK_WRITABLE */
|
---|
[821] | 2985 | }
|
---|