1 | /* vi: set sw=4 ts=4: */
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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 GPLv2 or later, see file LICENSE in this source tree.
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8 | */
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9 |
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10 | /* Looks like someone forgot to add this to config system */
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11 | //usage:#ifndef ENABLE_FEATURE_FDISK_BLKSIZE
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12 | //usage:# define ENABLE_FEATURE_FDISK_BLKSIZE 0
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13 | //usage:# define IF_FEATURE_FDISK_BLKSIZE(a)
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14 | //usage:#endif
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15 | //usage:
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16 | //usage:#define fdisk_trivial_usage
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17 | //usage: "[-ul" IF_FEATURE_FDISK_BLKSIZE("s") "] "
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18 | //usage: "[-C CYLINDERS] [-H HEADS] [-S SECTORS] [-b SSZ] DISK"
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19 | //usage:#define fdisk_full_usage "\n\n"
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20 | //usage: "Change partition table\n"
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21 | //usage: "\n -u Start and End are in sectors (instead of cylinders)"
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22 | //usage: "\n -l Show partition table for each DISK, then exit"
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23 | //usage: IF_FEATURE_FDISK_BLKSIZE(
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24 | //usage: "\n -s Show partition sizes in kb for each DISK, then exit"
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25 | //usage: )
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26 | //usage: "\n -b 2048 (for certain MO disks) use 2048-byte sectors"
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27 | //usage: "\n -C CYLINDERS Set number of cylinders/heads/sectors"
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28 | //usage: "\n -H HEADS"
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29 | //usage: "\n -S SECTORS"
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30 |
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31 | #ifndef _LARGEFILE64_SOURCE
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32 | /* For lseek64 */
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33 | # define _LARGEFILE64_SOURCE
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34 | #endif
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35 | #include <assert.h> /* assert */
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36 | #include <sys/mount.h>
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37 | #if !defined(BLKSSZGET)
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38 | # define BLKSSZGET _IO(0x12, 104)
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39 | #endif
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40 | #if !defined(BLKGETSIZE64)
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41 | # define BLKGETSIZE64 _IOR(0x12,114,size_t)
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42 | #endif
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43 | #include "libbb.h"
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44 |
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45 | #if BB_LITTLE_ENDIAN
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46 | # define inline_if_little_endian ALWAYS_INLINE
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47 | #else
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48 | # define inline_if_little_endian /* nothing */
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49 | #endif
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50 |
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51 |
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52 | /* Looks like someone forgot to add this to config system */
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53 | #ifndef ENABLE_FEATURE_FDISK_BLKSIZE
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54 | # define ENABLE_FEATURE_FDISK_BLKSIZE 0
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55 | # define IF_FEATURE_FDISK_BLKSIZE(a)
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56 | #endif
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57 |
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58 | #define DEFAULT_SECTOR_SIZE 512
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59 | #define DEFAULT_SECTOR_SIZE_STR "512"
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60 | #define MAX_SECTOR_SIZE 2048
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61 | #define SECTOR_SIZE 512 /* still used in osf/sgi/sun code */
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62 | #define MAXIMUM_PARTS 60
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63 |
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64 | #define ACTIVE_FLAG 0x80
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65 |
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66 | #define EXTENDED 0x05
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67 | #define WIN98_EXTENDED 0x0f
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68 | #define LINUX_PARTITION 0x81
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69 | #define LINUX_SWAP 0x82
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70 | #define LINUX_NATIVE 0x83
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71 | #define LINUX_EXTENDED 0x85
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72 | #define LINUX_LVM 0x8e
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73 | #define LINUX_RAID 0xfd
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74 |
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75 |
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76 | enum {
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77 | OPT_b = 1 << 0,
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78 | OPT_C = 1 << 1,
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79 | OPT_H = 1 << 2,
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80 | OPT_l = 1 << 3,
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81 | OPT_S = 1 << 4,
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82 | OPT_u = 1 << 5,
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83 | OPT_s = (1 << 6) * ENABLE_FEATURE_FDISK_BLKSIZE,
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84 | };
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85 |
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86 |
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87 | typedef unsigned long long ullong;
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88 | /* Used for sector numbers. Partition formats we know
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89 | * do not support more than 2^32 sectors
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90 | */
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91 | typedef uint32_t sector_t;
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92 | #if UINT_MAX == 4294967295
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93 | # define SECT_FMT ""
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94 | #elif ULONG_MAX == 4294967295
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95 | # define SECT_FMT "l"
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96 | #else
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97 | # error Cant detect sizeof(uint32_t)
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98 | #endif
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99 |
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100 | struct hd_geometry {
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101 | unsigned char heads;
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102 | unsigned char sectors;
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103 | unsigned short cylinders;
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104 | unsigned long start;
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105 | };
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106 |
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107 | #define HDIO_GETGEO 0x0301 /* get device geometry */
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108 |
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109 | static const char msg_building_new_label[] ALIGN1 =
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110 | "Building a new %s. Changes will remain in memory only,\n"
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111 | "until you decide to write them. After that the previous content\n"
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112 | "won't be recoverable.\n\n";
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113 |
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114 | static const char msg_part_already_defined[] ALIGN1 =
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115 | "Partition %u is already defined, delete it before re-adding\n";
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116 |
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117 |
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118 | struct partition {
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119 | unsigned char boot_ind; /* 0x80 - active */
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120 | unsigned char head; /* starting head */
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121 | unsigned char sector; /* starting sector */
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122 | unsigned char cyl; /* starting cylinder */
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123 | unsigned char sys_ind; /* what partition type */
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124 | unsigned char end_head; /* end head */
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125 | unsigned char end_sector; /* end sector */
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126 | unsigned char end_cyl; /* end cylinder */
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127 | unsigned char start4[4]; /* starting sector counting from 0 */
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128 | unsigned char size4[4]; /* nr of sectors in partition */
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129 | } PACKED;
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130 |
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131 | /*
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132 | * per partition table entry data
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133 | *
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134 | * The four primary partitions have the same sectorbuffer (MBRbuffer)
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135 | * and have NULL ext_pointer.
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136 | * Each logical partition table entry has two pointers, one for the
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137 | * partition and one link to the next one.
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138 | */
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139 | struct pte {
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140 | struct partition *part_table; /* points into sectorbuffer */
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141 | struct partition *ext_pointer; /* points into sectorbuffer */
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142 | sector_t offset_from_dev_start; /* disk sector number */
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143 | char *sectorbuffer; /* disk sector contents */
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144 | #if ENABLE_FEATURE_FDISK_WRITABLE
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145 | char changed; /* boolean */
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146 | #endif
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147 | };
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148 |
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149 | #define unable_to_open "can't open '%s'"
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150 | #define unable_to_read "can't read from %s"
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151 | #define unable_to_seek "can't seek on %s"
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152 |
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153 | enum label_type {
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154 | LABEL_DOS, LABEL_SUN, LABEL_SGI, LABEL_AIX, LABEL_OSF, LABEL_GPT
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155 | };
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156 |
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157 | #define LABEL_IS_DOS (LABEL_DOS == current_label_type)
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158 |
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159 | #if ENABLE_FEATURE_SUN_LABEL
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160 | #define LABEL_IS_SUN (LABEL_SUN == current_label_type)
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161 | #define STATIC_SUN static
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162 | #else
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163 | #define LABEL_IS_SUN 0
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164 | #define STATIC_SUN extern
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165 | #endif
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166 |
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167 | #if ENABLE_FEATURE_SGI_LABEL
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168 | #define LABEL_IS_SGI (LABEL_SGI == current_label_type)
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169 | #define STATIC_SGI static
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170 | #else
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171 | #define LABEL_IS_SGI 0
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172 | #define STATIC_SGI extern
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173 | #endif
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174 |
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175 | #if ENABLE_FEATURE_AIX_LABEL
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176 | #define LABEL_IS_AIX (LABEL_AIX == current_label_type)
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177 | #define STATIC_AIX static
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178 | #else
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179 | #define LABEL_IS_AIX 0
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180 | #define STATIC_AIX extern
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181 | #endif
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182 |
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183 | #if ENABLE_FEATURE_OSF_LABEL
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184 | #define LABEL_IS_OSF (LABEL_OSF == current_label_type)
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185 | #define STATIC_OSF static
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186 | #else
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187 | #define LABEL_IS_OSF 0
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188 | #define STATIC_OSF extern
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189 | #endif
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190 |
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191 | #if ENABLE_FEATURE_GPT_LABEL
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192 | #define LABEL_IS_GPT (LABEL_GPT == current_label_type)
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193 | #define STATIC_GPT static
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194 | #else
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195 | #define LABEL_IS_GPT 0
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196 | #define STATIC_GPT extern
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197 | #endif
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198 |
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199 | enum action { OPEN_MAIN, TRY_ONLY, CREATE_EMPTY_DOS, CREATE_EMPTY_SUN };
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200 |
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201 | static void update_units(void);
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202 | #if ENABLE_FEATURE_FDISK_WRITABLE
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203 | static void change_units(void);
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204 | static void reread_partition_table(int leave);
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205 | static void delete_partition(int i);
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206 | static unsigned get_partition(int warn, unsigned max);
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207 | static void list_types(const char *const *sys);
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208 | static sector_t read_int(sector_t low, sector_t dflt, sector_t high, sector_t base, const char *mesg);
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209 | #endif
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210 | static const char *partition_type(unsigned char type);
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211 | static void get_geometry(void);
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212 | static void read_pte(struct pte *pe, sector_t offset);
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213 | #if ENABLE_FEATURE_SUN_LABEL || ENABLE_FEATURE_FDISK_WRITABLE
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214 | static int get_boot(enum action what);
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215 | #else
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216 | static int get_boot(void);
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217 | #endif
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218 |
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219 | #define PLURAL 0
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220 | #define SINGULAR 1
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221 |
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222 | static sector_t get_start_sect(const struct partition *p);
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223 | static sector_t get_nr_sects(const struct partition *p);
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224 |
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225 | /* DOS partition types */
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226 |
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227 | static const char *const i386_sys_types[] = {
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228 | "\x00" "Empty",
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229 | "\x01" "FAT12",
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230 | "\x04" "FAT16 <32M",
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231 | "\x05" "Extended", /* DOS 3.3+ extended partition */
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232 | "\x06" "FAT16", /* DOS 16-bit >=32M */
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233 | "\x07" "HPFS/NTFS", /* OS/2 IFS, eg, HPFS or NTFS or QNX */
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234 | "\x0a" "OS/2 Boot Manager",/* OS/2 Boot Manager */
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235 | "\x0b" "Win95 FAT32",
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236 | "\x0c" "Win95 FAT32 (LBA)",/* LBA really is 'Extended Int 13h' */
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237 | "\x0e" "Win95 FAT16 (LBA)",
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238 | "\x0f" "Win95 Ext'd (LBA)",
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239 | "\x11" "Hidden FAT12",
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240 | "\x12" "Compaq diagnostics",
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241 | "\x14" "Hidden FAT16 <32M",
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242 | "\x16" "Hidden FAT16",
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243 | "\x17" "Hidden HPFS/NTFS",
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244 | "\x1b" "Hidden Win95 FAT32",
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245 | "\x1c" "Hidden W95 FAT32 (LBA)",
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246 | "\x1e" "Hidden W95 FAT16 (LBA)",
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247 | "\x3c" "Part.Magic recovery",
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248 | "\x41" "PPC PReP Boot",
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249 | "\x42" "SFS",
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250 | "\x63" "GNU HURD or SysV", /* GNU HURD or Mach or Sys V/386 (such as ISC UNIX) */
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251 | "\x80" "Old Minix", /* Minix 1.4a and earlier */
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252 | "\x81" "Minix / old Linux",/* Minix 1.4b and later */
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253 | "\x82" "Linux swap", /* also Solaris */
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254 | "\x83" "Linux",
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255 | "\x84" "OS/2 hidden C: drive",
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256 | "\x85" "Linux extended",
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257 | "\x86" "NTFS volume set",
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258 | "\x87" "NTFS volume set",
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259 | "\x8e" "Linux LVM",
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260 | "\x9f" "BSD/OS", /* BSDI */
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261 | "\xa0" "Thinkpad hibernation",
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262 | "\xa5" "FreeBSD", /* various BSD flavours */
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263 | "\xa6" "OpenBSD",
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264 | "\xa8" "Darwin UFS",
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265 | "\xa9" "NetBSD",
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266 | "\xab" "Darwin boot",
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267 | "\xb7" "BSDI fs",
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268 | "\xb8" "BSDI swap",
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269 | "\xbe" "Solaris boot",
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270 | "\xeb" "BeOS fs",
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271 | "\xee" "EFI GPT", /* Intel EFI GUID Partition Table */
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272 | "\xef" "EFI (FAT-12/16/32)", /* Intel EFI System Partition */
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273 | "\xf0" "Linux/PA-RISC boot", /* Linux/PA-RISC boot loader */
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274 | "\xf2" "DOS secondary", /* DOS 3.3+ secondary */
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275 | "\xfd" "Linux raid autodetect", /* New (2.2.x) raid partition with
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276 | autodetect using persistent
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277 | superblock */
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278 | #if 0 /* ENABLE_WEIRD_PARTITION_TYPES */
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279 | "\x02" "XENIX root",
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280 | "\x03" "XENIX usr",
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281 | "\x08" "AIX", /* AIX boot (AIX -- PS/2 port) or SplitDrive */
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282 | "\x09" "AIX bootable", /* AIX data or Coherent */
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283 | "\x10" "OPUS",
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284 | "\x18" "AST SmartSleep",
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285 | "\x24" "NEC DOS",
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286 | "\x39" "Plan 9",
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287 | "\x40" "Venix 80286",
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288 | "\x4d" "QNX4.x",
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289 | "\x4e" "QNX4.x 2nd part",
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290 | "\x4f" "QNX4.x 3rd part",
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291 | "\x50" "OnTrack DM",
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292 | "\x51" "OnTrack DM6 Aux1", /* (or Novell) */
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293 | "\x52" "CP/M", /* CP/M or Microport SysV/AT */
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294 | "\x53" "OnTrack DM6 Aux3",
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295 | "\x54" "OnTrackDM6",
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296 | "\x55" "EZ-Drive",
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297 | "\x56" "Golden Bow",
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298 | "\x5c" "Priam Edisk",
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299 | "\x61" "SpeedStor",
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300 | "\x64" "Novell Netware 286",
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301 | "\x65" "Novell Netware 386",
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302 | "\x70" "DiskSecure Multi-Boot",
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303 | "\x75" "PC/IX",
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304 | "\x93" "Amoeba",
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305 | "\x94" "Amoeba BBT", /* (bad block table) */
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306 | "\xa7" "NeXTSTEP",
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307 | "\xbb" "Boot Wizard hidden",
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308 | "\xc1" "DRDOS/sec (FAT-12)",
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309 | "\xc4" "DRDOS/sec (FAT-16 < 32M)",
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310 | "\xc6" "DRDOS/sec (FAT-16)",
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311 | "\xc7" "Syrinx",
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312 | "\xda" "Non-FS data",
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313 | "\xdb" "CP/M / CTOS / ...",/* CP/M or Concurrent CP/M or
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314 | Concurrent DOS or CTOS */
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315 | "\xde" "Dell Utility", /* Dell PowerEdge Server utilities */
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316 | "\xdf" "BootIt", /* BootIt EMBRM */
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317 | "\xe1" "DOS access", /* DOS access or SpeedStor 12-bit FAT
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318 | extended partition */
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319 | "\xe3" "DOS R/O", /* DOS R/O or SpeedStor */
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320 | "\xe4" "SpeedStor", /* SpeedStor 16-bit FAT extended
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321 | partition < 1024 cyl. */
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322 | "\xf1" "SpeedStor",
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323 | "\xf4" "SpeedStor", /* SpeedStor large partition */
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324 | "\xfe" "LANstep", /* SpeedStor >1024 cyl. or LANstep */
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325 | "\xff" "BBT", /* Xenix Bad Block Table */
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326 | #endif
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327 | NULL
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328 | };
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329 |
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330 | enum {
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331 | dev_fd = 3 /* the disk */
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332 | };
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333 |
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334 | /* Globals */
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335 | struct globals {
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336 | char *line_ptr;
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337 |
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338 | const char *disk_device;
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339 | int g_partitions; // = 4; /* maximum partition + 1 */
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340 | unsigned units_per_sector; // = 1;
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341 | unsigned sector_size; // = DEFAULT_SECTOR_SIZE;
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342 | unsigned user_set_sector_size;
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343 | unsigned sector_offset; // = 1;
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344 | unsigned g_heads, g_sectors, g_cylinders;
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345 | smallint /* enum label_type */ current_label_type;
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346 | smallint display_in_cyl_units; // = 1;
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347 | #if ENABLE_FEATURE_OSF_LABEL
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348 | smallint possibly_osf_label;
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349 | #endif
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350 |
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351 | smallint listing; /* no aborts for fdisk -l */
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352 | smallint dos_compatible_flag; // = 1;
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353 | #if ENABLE_FEATURE_FDISK_WRITABLE
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354 | //int dos_changed;
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355 | smallint nowarn; /* no warnings for fdisk -l/-s */
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356 | #endif
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357 | int ext_index; /* the prime extended partition */
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358 | unsigned user_cylinders, user_heads, user_sectors;
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359 | unsigned pt_heads, pt_sectors;
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360 | unsigned kern_heads, kern_sectors;
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361 | sector_t extended_offset; /* offset of link pointers */
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362 | sector_t total_number_of_sectors;
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363 |
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364 | jmp_buf listingbuf;
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365 | char line_buffer[80];
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366 | char partname_buffer[80];
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367 | /* Raw disk label. For DOS-type partition tables the MBR,
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368 | * with descriptions of the primary partitions. */
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369 | char MBRbuffer[MAX_SECTOR_SIZE];
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370 | /* Partition tables */
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371 | struct pte ptes[MAXIMUM_PARTS];
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372 | };
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373 | #define G (*ptr_to_globals)
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374 | #define line_ptr (G.line_ptr )
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375 | #define disk_device (G.disk_device )
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376 | #define g_partitions (G.g_partitions )
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377 | #define units_per_sector (G.units_per_sector )
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378 | #define sector_size (G.sector_size )
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379 | #define user_set_sector_size (G.user_set_sector_size)
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380 | #define sector_offset (G.sector_offset )
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381 | #define g_heads (G.g_heads )
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382 | #define g_sectors (G.g_sectors )
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383 | #define g_cylinders (G.g_cylinders )
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384 | #define current_label_type (G.current_label_type )
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385 | #define display_in_cyl_units (G.display_in_cyl_units)
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386 | #define possibly_osf_label (G.possibly_osf_label )
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387 | #define listing (G.listing )
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388 | #define dos_compatible_flag (G.dos_compatible_flag )
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389 | #define nowarn (G.nowarn )
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390 | #define ext_index (G.ext_index )
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391 | #define user_cylinders (G.user_cylinders )
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392 | #define user_heads (G.user_heads )
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393 | #define user_sectors (G.user_sectors )
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394 | #define pt_heads (G.pt_heads )
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395 | #define pt_sectors (G.pt_sectors )
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396 | #define kern_heads (G.kern_heads )
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397 | #define kern_sectors (G.kern_sectors )
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398 | #define extended_offset (G.extended_offset )
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399 | #define total_number_of_sectors (G.total_number_of_sectors)
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400 | #define listingbuf (G.listingbuf )
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401 | #define line_buffer (G.line_buffer )
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402 | #define partname_buffer (G.partname_buffer)
|
---|
403 | #define MBRbuffer (G.MBRbuffer )
|
---|
404 | #define ptes (G.ptes )
|
---|
405 | #define INIT_G() do { \
|
---|
406 | SET_PTR_TO_GLOBALS(xzalloc(sizeof(G))); \
|
---|
407 | sector_size = DEFAULT_SECTOR_SIZE; \
|
---|
408 | sector_offset = 1; \
|
---|
409 | g_partitions = 4; \
|
---|
410 | display_in_cyl_units = 1; \
|
---|
411 | units_per_sector = 1; \
|
---|
412 | dos_compatible_flag = 1; \
|
---|
413 | } while (0)
|
---|
414 |
|
---|
415 |
|
---|
416 | /* TODO: move to libbb? */
|
---|
417 | /* TODO: return unsigned long long, FEATURE_FDISK_BLKSIZE _can_ handle
|
---|
418 | * disks > 2^32 sectors
|
---|
419 | */
|
---|
420 | static sector_t bb_BLKGETSIZE_sectors(int fd)
|
---|
421 | {
|
---|
422 | uint64_t v64;
|
---|
423 | unsigned long longsectors;
|
---|
424 |
|
---|
425 | if (ioctl(fd, BLKGETSIZE64, &v64) == 0) {
|
---|
426 | /* Got bytes, convert to 512 byte sectors */
|
---|
427 | v64 >>= 9;
|
---|
428 | if (v64 != (sector_t)v64) {
|
---|
429 | ret_trunc:
|
---|
430 | /* Not only DOS, but all other partition tables
|
---|
431 | * we support can't record more than 32 bit
|
---|
432 | * sector counts or offsets
|
---|
433 | */
|
---|
434 | bb_error_msg("device has more than 2^32 sectors, can't use all of them");
|
---|
435 | v64 = (uint32_t)-1L;
|
---|
436 | }
|
---|
437 | return v64;
|
---|
438 | }
|
---|
439 | /* Needs temp of type long */
|
---|
440 | if (ioctl(fd, BLKGETSIZE, &longsectors)) {
|
---|
441 | /* Perhaps this is a disk image */
|
---|
442 | off_t sz = lseek(fd, 0, SEEK_END);
|
---|
443 | longsectors = 0;
|
---|
444 | if (sz > 0)
|
---|
445 | longsectors = (uoff_t)sz / sector_size;
|
---|
446 | lseek(fd, 0, SEEK_SET);
|
---|
447 | }
|
---|
448 | if (sizeof(long) > sizeof(sector_t)
|
---|
449 | && longsectors != (sector_t)longsectors
|
---|
450 | ) {
|
---|
451 | goto ret_trunc;
|
---|
452 | }
|
---|
453 | return longsectors;
|
---|
454 | }
|
---|
455 |
|
---|
456 |
|
---|
457 | #define IS_EXTENDED(i) \
|
---|
458 | ((i) == EXTENDED || (i) == WIN98_EXTENDED || (i) == LINUX_EXTENDED)
|
---|
459 |
|
---|
460 | #define cround(n) (display_in_cyl_units ? ((n)/units_per_sector)+1 : (n))
|
---|
461 |
|
---|
462 | #define scround(x) (((x)+units_per_sector-1)/units_per_sector)
|
---|
463 |
|
---|
464 | #define pt_offset(b, n) \
|
---|
465 | ((struct partition *)((b) + 0x1be + (n) * sizeof(struct partition)))
|
---|
466 |
|
---|
467 | #define sector(s) ((s) & 0x3f)
|
---|
468 |
|
---|
469 | #define cylinder(s, c) ((c) | (((s) & 0xc0) << 2))
|
---|
470 |
|
---|
471 | #define hsc2sector(h,s,c) \
|
---|
472 | (sector(s) - 1 + sectors * ((h) + heads * cylinder(s,c)))
|
---|
473 |
|
---|
474 | static void
|
---|
475 | close_dev_fd(void)
|
---|
476 | {
|
---|
477 | /* Not really closing, but making sure it is open, and to harmless place */
|
---|
478 | xmove_fd(xopen(bb_dev_null, O_RDONLY), dev_fd);
|
---|
479 | }
|
---|
480 |
|
---|
481 | /*
|
---|
482 | * Return partition name - uses static storage
|
---|
483 | */
|
---|
484 | static const char *
|
---|
485 | partname(const char *dev, int pno, int lth)
|
---|
486 | {
|
---|
487 | const char *p;
|
---|
488 | int w, wp;
|
---|
489 | int bufsiz;
|
---|
490 | char *bufp;
|
---|
491 |
|
---|
492 | bufp = partname_buffer;
|
---|
493 | bufsiz = sizeof(partname_buffer);
|
---|
494 |
|
---|
495 | w = strlen(dev);
|
---|
496 | p = "";
|
---|
497 |
|
---|
498 | if (isdigit(dev[w-1]))
|
---|
499 | p = "p";
|
---|
500 |
|
---|
501 | /* devfs kludge - note: fdisk partition names are not supposed
|
---|
502 | to equal kernel names, so there is no reason to do this */
|
---|
503 | if (strcmp(dev + w - 4, "disc") == 0) {
|
---|
504 | w -= 4;
|
---|
505 | p = "part";
|
---|
506 | }
|
---|
507 |
|
---|
508 | wp = strlen(p);
|
---|
509 |
|
---|
510 | if (lth) {
|
---|
511 | snprintf(bufp, bufsiz, "%*.*s%s%-2u",
|
---|
512 | lth-wp-2, w, dev, p, pno);
|
---|
513 | } else {
|
---|
514 | snprintf(bufp, bufsiz, "%.*s%s%-2u", w, dev, p, pno);
|
---|
515 | }
|
---|
516 | return bufp;
|
---|
517 | }
|
---|
518 |
|
---|
519 | static ALWAYS_INLINE struct partition *
|
---|
520 | get_part_table(int i)
|
---|
521 | {
|
---|
522 | return ptes[i].part_table;
|
---|
523 | }
|
---|
524 |
|
---|
525 | static const char *
|
---|
526 | str_units(int n)
|
---|
527 | { /* n==1: use singular */
|
---|
528 | if (n == 1)
|
---|
529 | return display_in_cyl_units ? "cylinder" : "sector";
|
---|
530 | return display_in_cyl_units ? "cylinders" : "sectors";
|
---|
531 | }
|
---|
532 |
|
---|
533 | static int
|
---|
534 | valid_part_table_flag(const char *mbuffer)
|
---|
535 | {
|
---|
536 | return (mbuffer[510] == 0x55 && (uint8_t)mbuffer[511] == 0xaa);
|
---|
537 | }
|
---|
538 |
|
---|
539 | static void fdisk_fatal(const char *why)
|
---|
540 | {
|
---|
541 | if (listing) {
|
---|
542 | close_dev_fd();
|
---|
543 | longjmp(listingbuf, 1);
|
---|
544 | }
|
---|
545 | bb_error_msg_and_die(why, disk_device);
|
---|
546 | }
|
---|
547 |
|
---|
548 | static void
|
---|
549 | seek_sector(sector_t secno)
|
---|
550 | {
|
---|
551 | #if ENABLE_FDISK_SUPPORT_LARGE_DISKS
|
---|
552 | off64_t off = (off64_t)secno * sector_size;
|
---|
553 | if (lseek64(dev_fd, off, SEEK_SET) == (off64_t) -1)
|
---|
554 | fdisk_fatal(unable_to_seek);
|
---|
555 | #else
|
---|
556 | uint64_t off = (uint64_t)secno * sector_size;
|
---|
557 | if (off > MAXINT(off_t)
|
---|
558 | || lseek(dev_fd, (off_t)off, SEEK_SET) == (off_t) -1
|
---|
559 | ) {
|
---|
560 | fdisk_fatal(unable_to_seek);
|
---|
561 | }
|
---|
562 | #endif
|
---|
563 | }
|
---|
564 |
|
---|
565 | #if ENABLE_FEATURE_FDISK_WRITABLE
|
---|
566 | /* Read line; return 0 or first printable char */
|
---|
567 | static int
|
---|
568 | read_line(const char *prompt)
|
---|
569 | {
|
---|
570 | int sz;
|
---|
571 |
|
---|
572 | sz = read_line_input(NULL, prompt, line_buffer, sizeof(line_buffer), /*timeout*/ -1);
|
---|
573 | if (sz <= 0)
|
---|
574 | exit(EXIT_SUCCESS); /* Ctrl-D or Ctrl-C */
|
---|
575 |
|
---|
576 | if (line_buffer[sz-1] == '\n')
|
---|
577 | line_buffer[--sz] = '\0';
|
---|
578 |
|
---|
579 | line_ptr = line_buffer;
|
---|
580 | while (*line_ptr != '\0' && (unsigned char)*line_ptr <= ' ')
|
---|
581 | line_ptr++;
|
---|
582 | return *line_ptr;
|
---|
583 | }
|
---|
584 |
|
---|
585 | static void
|
---|
586 | set_all_unchanged(void)
|
---|
587 | {
|
---|
588 | int i;
|
---|
589 |
|
---|
590 | for (i = 0; i < MAXIMUM_PARTS; i++)
|
---|
591 | ptes[i].changed = 0;
|
---|
592 | }
|
---|
593 |
|
---|
594 | static ALWAYS_INLINE void
|
---|
595 | set_changed(int i)
|
---|
596 | {
|
---|
597 | ptes[i].changed = 1;
|
---|
598 | }
|
---|
599 |
|
---|
600 | static ALWAYS_INLINE void
|
---|
601 | write_part_table_flag(char *b)
|
---|
602 | {
|
---|
603 | b[510] = 0x55;
|
---|
604 | b[511] = 0xaa;
|
---|
605 | }
|
---|
606 |
|
---|
607 | static char
|
---|
608 | read_nonempty(const char *mesg)
|
---|
609 | {
|
---|
610 | while (!read_line(mesg))
|
---|
611 | continue;
|
---|
612 | return *line_ptr;
|
---|
613 | }
|
---|
614 |
|
---|
615 | static char
|
---|
616 | read_maybe_empty(const char *mesg)
|
---|
617 | {
|
---|
618 | if (!read_line(mesg)) {
|
---|
619 | line_ptr = line_buffer;
|
---|
620 | line_ptr[0] = '\n';
|
---|
621 | line_ptr[1] = '\0';
|
---|
622 | }
|
---|
623 | return line_ptr[0];
|
---|
624 | }
|
---|
625 |
|
---|
626 | static int
|
---|
627 | read_hex(const char *const *sys)
|
---|
628 | {
|
---|
629 | unsigned long v;
|
---|
630 | while (1) {
|
---|
631 | read_nonempty("Hex code (type L to list codes): ");
|
---|
632 | if ((line_ptr[0] | 0x20) == 'l') {
|
---|
633 | list_types(sys);
|
---|
634 | continue;
|
---|
635 | }
|
---|
636 | v = bb_strtoul(line_ptr, NULL, 16);
|
---|
637 | if (v <= 0xff)
|
---|
638 | return v;
|
---|
639 | }
|
---|
640 | }
|
---|
641 |
|
---|
642 | static void
|
---|
643 | write_sector(sector_t secno, const void *buf)
|
---|
644 | {
|
---|
645 | seek_sector(secno);
|
---|
646 | xwrite(dev_fd, buf, sector_size);
|
---|
647 | }
|
---|
648 | #endif /* FEATURE_FDISK_WRITABLE */
|
---|
649 |
|
---|
650 |
|
---|
651 | #include "fdisk_aix.c"
|
---|
652 |
|
---|
653 | struct sun_partition {
|
---|
654 | unsigned char info[128]; /* Informative text string */
|
---|
655 | unsigned char spare0[14];
|
---|
656 | struct sun_info {
|
---|
657 | unsigned char spare1;
|
---|
658 | unsigned char id;
|
---|
659 | unsigned char spare2;
|
---|
660 | unsigned char flags;
|
---|
661 | } infos[8];
|
---|
662 | unsigned char spare1[246]; /* Boot information etc. */
|
---|
663 | unsigned short rspeed; /* Disk rotational speed */
|
---|
664 | unsigned short pcylcount; /* Physical cylinder count */
|
---|
665 | unsigned short sparecyl; /* extra sects per cylinder */
|
---|
666 | unsigned char spare2[4]; /* More magic... */
|
---|
667 | unsigned short ilfact; /* Interleave factor */
|
---|
668 | unsigned short ncyl; /* Data cylinder count */
|
---|
669 | unsigned short nacyl; /* Alt. cylinder count */
|
---|
670 | unsigned short ntrks; /* Tracks per cylinder */
|
---|
671 | unsigned short nsect; /* Sectors per track */
|
---|
672 | unsigned char spare3[4]; /* Even more magic... */
|
---|
673 | struct sun_partinfo {
|
---|
674 | uint32_t start_cylinder;
|
---|
675 | uint32_t num_sectors;
|
---|
676 | } partitions[8];
|
---|
677 | unsigned short magic; /* Magic number */
|
---|
678 | unsigned short csum; /* Label xor'd checksum */
|
---|
679 | } FIX_ALIASING;
|
---|
680 | typedef struct sun_partition sun_partition;
|
---|
681 | #define sunlabel ((sun_partition *)MBRbuffer)
|
---|
682 | STATIC_OSF void bsd_select(void);
|
---|
683 | STATIC_OSF void xbsd_print_disklabel(int);
|
---|
684 | #include "fdisk_osf.c"
|
---|
685 |
|
---|
686 | STATIC_GPT void gpt_list_table(int xtra);
|
---|
687 | #include "fdisk_gpt.c"
|
---|
688 |
|
---|
689 | #if ENABLE_FEATURE_SGI_LABEL || ENABLE_FEATURE_SUN_LABEL
|
---|
690 | static uint16_t
|
---|
691 | fdisk_swap16(uint16_t x)
|
---|
692 | {
|
---|
693 | return (x << 8) | (x >> 8);
|
---|
694 | }
|
---|
695 |
|
---|
696 | static uint32_t
|
---|
697 | fdisk_swap32(uint32_t x)
|
---|
698 | {
|
---|
699 | return (x << 24) |
|
---|
700 | ((x & 0xFF00) << 8) |
|
---|
701 | ((x & 0xFF0000) >> 8) |
|
---|
702 | (x >> 24);
|
---|
703 | }
|
---|
704 | #endif
|
---|
705 |
|
---|
706 | STATIC_SGI const char *const sgi_sys_types[];
|
---|
707 | STATIC_SGI unsigned sgi_get_num_sectors(int i);
|
---|
708 | STATIC_SGI int sgi_get_sysid(int i);
|
---|
709 | STATIC_SGI void sgi_delete_partition(int i);
|
---|
710 | STATIC_SGI void sgi_change_sysid(int i, int sys);
|
---|
711 | STATIC_SGI void sgi_list_table(int xtra);
|
---|
712 | #if ENABLE_FEATURE_FDISK_ADVANCED
|
---|
713 | STATIC_SGI void sgi_set_xcyl(void);
|
---|
714 | #endif
|
---|
715 | STATIC_SGI int verify_sgi(int verbose);
|
---|
716 | STATIC_SGI void sgi_add_partition(int n, int sys);
|
---|
717 | STATIC_SGI void sgi_set_swappartition(int i);
|
---|
718 | STATIC_SGI const char *sgi_get_bootfile(void);
|
---|
719 | STATIC_SGI void sgi_set_bootfile(const char* aFile);
|
---|
720 | STATIC_SGI void create_sgiinfo(void);
|
---|
721 | STATIC_SGI void sgi_write_table(void);
|
---|
722 | STATIC_SGI void sgi_set_bootpartition(int i);
|
---|
723 | #include "fdisk_sgi.c"
|
---|
724 |
|
---|
725 | STATIC_SUN const char *const sun_sys_types[];
|
---|
726 | STATIC_SUN void sun_delete_partition(int i);
|
---|
727 | STATIC_SUN void sun_change_sysid(int i, int sys);
|
---|
728 | STATIC_SUN void sun_list_table(int xtra);
|
---|
729 | STATIC_SUN void add_sun_partition(int n, int sys);
|
---|
730 | #if ENABLE_FEATURE_FDISK_ADVANCED
|
---|
731 | STATIC_SUN void sun_set_alt_cyl(void);
|
---|
732 | STATIC_SUN void sun_set_ncyl(int cyl);
|
---|
733 | STATIC_SUN void sun_set_xcyl(void);
|
---|
734 | STATIC_SUN void sun_set_ilfact(void);
|
---|
735 | STATIC_SUN void sun_set_rspeed(void);
|
---|
736 | STATIC_SUN void sun_set_pcylcount(void);
|
---|
737 | #endif
|
---|
738 | STATIC_SUN void toggle_sunflags(int i, unsigned char mask);
|
---|
739 | STATIC_SUN void verify_sun(void);
|
---|
740 | STATIC_SUN void sun_write_table(void);
|
---|
741 | #include "fdisk_sun.c"
|
---|
742 |
|
---|
743 |
|
---|
744 | static inline_if_little_endian unsigned
|
---|
745 | read4_little_endian(const unsigned char *cp)
|
---|
746 | {
|
---|
747 | uint32_t v;
|
---|
748 | move_from_unaligned32(v, cp);
|
---|
749 | return SWAP_LE32(v);
|
---|
750 | }
|
---|
751 |
|
---|
752 | static sector_t
|
---|
753 | get_start_sect(const struct partition *p)
|
---|
754 | {
|
---|
755 | return read4_little_endian(p->start4);
|
---|
756 | }
|
---|
757 |
|
---|
758 | static sector_t
|
---|
759 | get_nr_sects(const struct partition *p)
|
---|
760 | {
|
---|
761 | return read4_little_endian(p->size4);
|
---|
762 | }
|
---|
763 |
|
---|
764 | #if ENABLE_FEATURE_FDISK_WRITABLE
|
---|
765 | /* start_sect and nr_sects are stored little endian on all machines */
|
---|
766 | /* moreover, they are not aligned correctly */
|
---|
767 | static inline_if_little_endian void
|
---|
768 | store4_little_endian(unsigned char *cp, unsigned val)
|
---|
769 | {
|
---|
770 | uint32_t v = SWAP_LE32(val);
|
---|
771 | move_to_unaligned32(cp, v);
|
---|
772 | }
|
---|
773 |
|
---|
774 | static void
|
---|
775 | set_start_sect(struct partition *p, unsigned start_sect)
|
---|
776 | {
|
---|
777 | store4_little_endian(p->start4, start_sect);
|
---|
778 | }
|
---|
779 |
|
---|
780 | static void
|
---|
781 | set_nr_sects(struct partition *p, unsigned nr_sects)
|
---|
782 | {
|
---|
783 | store4_little_endian(p->size4, nr_sects);
|
---|
784 | }
|
---|
785 | #endif
|
---|
786 |
|
---|
787 | /* Allocate a buffer and read a partition table sector */
|
---|
788 | static void
|
---|
789 | read_pte(struct pte *pe, sector_t offset)
|
---|
790 | {
|
---|
791 | pe->offset_from_dev_start = offset;
|
---|
792 | pe->sectorbuffer = xzalloc(sector_size);
|
---|
793 | seek_sector(offset);
|
---|
794 | /* xread would make us abort - bad for fdisk -l */
|
---|
795 | if (full_read(dev_fd, pe->sectorbuffer, sector_size) != sector_size)
|
---|
796 | fdisk_fatal(unable_to_read);
|
---|
797 | #if ENABLE_FEATURE_FDISK_WRITABLE
|
---|
798 | pe->changed = 0;
|
---|
799 | #endif
|
---|
800 | pe->part_table = pe->ext_pointer = NULL;
|
---|
801 | }
|
---|
802 |
|
---|
803 | static sector_t
|
---|
804 | get_partition_start_from_dev_start(const struct pte *pe)
|
---|
805 | {
|
---|
806 | return pe->offset_from_dev_start + get_start_sect(pe->part_table);
|
---|
807 | }
|
---|
808 |
|
---|
809 | #if ENABLE_FEATURE_FDISK_WRITABLE
|
---|
810 | /*
|
---|
811 | * Avoid warning about DOS partitions when no DOS partition was changed.
|
---|
812 | * Here a heuristic "is probably dos partition".
|
---|
813 | * We might also do the opposite and warn in all cases except
|
---|
814 | * for "is probably nondos partition".
|
---|
815 | */
|
---|
816 | #ifdef UNUSED
|
---|
817 | static int
|
---|
818 | is_dos_partition(int t)
|
---|
819 | {
|
---|
820 | return (t == 1 || t == 4 || t == 6 ||
|
---|
821 | t == 0x0b || t == 0x0c || t == 0x0e ||
|
---|
822 | t == 0x11 || t == 0x12 || t == 0x14 || t == 0x16 ||
|
---|
823 | t == 0x1b || t == 0x1c || t == 0x1e || t == 0x24 ||
|
---|
824 | t == 0xc1 || t == 0xc4 || t == 0xc6);
|
---|
825 | }
|
---|
826 | #endif
|
---|
827 |
|
---|
828 | static void
|
---|
829 | menu(void)
|
---|
830 | {
|
---|
831 | puts("Command Action");
|
---|
832 | if (LABEL_IS_SUN) {
|
---|
833 | puts("a\ttoggle a read only flag"); /* sun */
|
---|
834 | puts("b\tedit bsd disklabel");
|
---|
835 | puts("c\ttoggle the mountable flag"); /* sun */
|
---|
836 | puts("d\tdelete a partition");
|
---|
837 | puts("l\tlist known partition types");
|
---|
838 | puts("n\tadd a new partition");
|
---|
839 | puts("o\tcreate a new empty DOS partition table");
|
---|
840 | puts("p\tprint the partition table");
|
---|
841 | puts("q\tquit without saving changes");
|
---|
842 | puts("s\tcreate a new empty Sun disklabel"); /* sun */
|
---|
843 | puts("t\tchange a partition's system id");
|
---|
844 | puts("u\tchange display/entry units");
|
---|
845 | puts("v\tverify the partition table");
|
---|
846 | puts("w\twrite table to disk and exit");
|
---|
847 | #if ENABLE_FEATURE_FDISK_ADVANCED
|
---|
848 | puts("x\textra functionality (experts only)");
|
---|
849 | #endif
|
---|
850 | } else if (LABEL_IS_SGI) {
|
---|
851 | puts("a\tselect bootable partition"); /* sgi flavour */
|
---|
852 | puts("b\tedit bootfile entry"); /* sgi */
|
---|
853 | puts("c\tselect sgi swap partition"); /* sgi flavour */
|
---|
854 | puts("d\tdelete a partition");
|
---|
855 | puts("l\tlist known partition types");
|
---|
856 | puts("n\tadd a new partition");
|
---|
857 | puts("o\tcreate a new empty DOS partition table");
|
---|
858 | puts("p\tprint the partition table");
|
---|
859 | puts("q\tquit without saving changes");
|
---|
860 | puts("s\tcreate a new empty Sun disklabel"); /* sun */
|
---|
861 | puts("t\tchange a partition's system id");
|
---|
862 | puts("u\tchange display/entry units");
|
---|
863 | puts("v\tverify the partition table");
|
---|
864 | puts("w\twrite table to disk and exit");
|
---|
865 | } else if (LABEL_IS_AIX) {
|
---|
866 | puts("o\tcreate a new empty DOS partition table");
|
---|
867 | puts("q\tquit without saving changes");
|
---|
868 | puts("s\tcreate a new empty Sun disklabel"); /* sun */
|
---|
869 | } else if (LABEL_IS_GPT) {
|
---|
870 | puts("o\tcreate a new empty DOS partition table");
|
---|
871 | puts("p\tprint the partition table");
|
---|
872 | puts("q\tquit without saving changes");
|
---|
873 | puts("s\tcreate a new empty Sun disklabel"); /* sun */
|
---|
874 | } else {
|
---|
875 | puts("a\ttoggle a bootable flag");
|
---|
876 | puts("b\tedit bsd disklabel");
|
---|
877 | puts("c\ttoggle the dos compatibility flag");
|
---|
878 | puts("d\tdelete a partition");
|
---|
879 | puts("l\tlist known partition types");
|
---|
880 | puts("n\tadd a new partition");
|
---|
881 | puts("o\tcreate a new empty DOS partition table");
|
---|
882 | puts("p\tprint the partition table");
|
---|
883 | puts("q\tquit without saving changes");
|
---|
884 | puts("s\tcreate a new empty Sun disklabel"); /* sun */
|
---|
885 | puts("t\tchange a partition's system id");
|
---|
886 | puts("u\tchange display/entry units");
|
---|
887 | puts("v\tverify the partition table");
|
---|
888 | puts("w\twrite table to disk and exit");
|
---|
889 | #if ENABLE_FEATURE_FDISK_ADVANCED
|
---|
890 | puts("x\textra functionality (experts only)");
|
---|
891 | #endif
|
---|
892 | }
|
---|
893 | }
|
---|
894 | #endif /* FEATURE_FDISK_WRITABLE */
|
---|
895 |
|
---|
896 |
|
---|
897 | #if ENABLE_FEATURE_FDISK_ADVANCED
|
---|
898 | static void
|
---|
899 | xmenu(void)
|
---|
900 | {
|
---|
901 | puts("Command Action");
|
---|
902 | if (LABEL_IS_SUN) {
|
---|
903 | puts("a\tchange number of alternate cylinders"); /*sun*/
|
---|
904 | puts("c\tchange number of cylinders");
|
---|
905 | puts("d\tprint the raw data in the partition table");
|
---|
906 | puts("e\tchange number of extra sectors per cylinder");/*sun*/
|
---|
907 | puts("h\tchange number of heads");
|
---|
908 | puts("i\tchange interleave factor"); /*sun*/
|
---|
909 | puts("o\tchange rotation speed (rpm)"); /*sun*/
|
---|
910 | puts("p\tprint the partition table");
|
---|
911 | puts("q\tquit without saving changes");
|
---|
912 | puts("r\treturn to main menu");
|
---|
913 | puts("s\tchange number of sectors/track");
|
---|
914 | puts("v\tverify the partition table");
|
---|
915 | puts("w\twrite table to disk and exit");
|
---|
916 | puts("y\tchange number of physical cylinders"); /*sun*/
|
---|
917 | } else if (LABEL_IS_SGI) {
|
---|
918 | puts("b\tmove beginning of data in a partition"); /* !sun */
|
---|
919 | puts("c\tchange number of cylinders");
|
---|
920 | puts("d\tprint the raw data in the partition table");
|
---|
921 | puts("e\tlist extended partitions"); /* !sun */
|
---|
922 | puts("g\tcreate an IRIX (SGI) partition table");/* sgi */
|
---|
923 | puts("h\tchange number of heads");
|
---|
924 | puts("p\tprint the partition table");
|
---|
925 | puts("q\tquit without saving changes");
|
---|
926 | puts("r\treturn to main menu");
|
---|
927 | puts("s\tchange number of sectors/track");
|
---|
928 | puts("v\tverify the partition table");
|
---|
929 | puts("w\twrite table to disk and exit");
|
---|
930 | } else if (LABEL_IS_AIX) {
|
---|
931 | puts("b\tmove beginning of data in a partition"); /* !sun */
|
---|
932 | puts("c\tchange number of cylinders");
|
---|
933 | puts("d\tprint the raw data in the partition table");
|
---|
934 | puts("e\tlist extended partitions"); /* !sun */
|
---|
935 | puts("g\tcreate an IRIX (SGI) partition table");/* sgi */
|
---|
936 | puts("h\tchange number of heads");
|
---|
937 | puts("p\tprint the partition table");
|
---|
938 | puts("q\tquit without saving changes");
|
---|
939 | puts("r\treturn to main menu");
|
---|
940 | puts("s\tchange number of sectors/track");
|
---|
941 | puts("v\tverify the partition table");
|
---|
942 | puts("w\twrite table to disk and exit");
|
---|
943 | } else {
|
---|
944 | puts("b\tmove beginning of data in a partition"); /* !sun */
|
---|
945 | puts("c\tchange number of cylinders");
|
---|
946 | puts("d\tprint the raw data in the partition table");
|
---|
947 | puts("e\tlist extended partitions"); /* !sun */
|
---|
948 | puts("f\tfix partition order"); /* !sun, !aix, !sgi */
|
---|
949 | #if ENABLE_FEATURE_SGI_LABEL
|
---|
950 | puts("g\tcreate an IRIX (SGI) partition table");/* sgi */
|
---|
951 | #endif
|
---|
952 | puts("h\tchange number of heads");
|
---|
953 | puts("p\tprint the partition table");
|
---|
954 | puts("q\tquit without saving changes");
|
---|
955 | puts("r\treturn to main menu");
|
---|
956 | puts("s\tchange number of sectors/track");
|
---|
957 | puts("v\tverify the partition table");
|
---|
958 | puts("w\twrite table to disk and exit");
|
---|
959 | }
|
---|
960 | }
|
---|
961 | #endif /* ADVANCED mode */
|
---|
962 |
|
---|
963 | #if ENABLE_FEATURE_FDISK_WRITABLE
|
---|
964 | static const char *const *
|
---|
965 | get_sys_types(void)
|
---|
966 | {
|
---|
967 | return (
|
---|
968 | LABEL_IS_SUN ? sun_sys_types :
|
---|
969 | LABEL_IS_SGI ? sgi_sys_types :
|
---|
970 | i386_sys_types);
|
---|
971 | }
|
---|
972 | #else
|
---|
973 | #define get_sys_types() i386_sys_types
|
---|
974 | #endif
|
---|
975 |
|
---|
976 | static const char *
|
---|
977 | partition_type(unsigned char type)
|
---|
978 | {
|
---|
979 | int i;
|
---|
980 | const char *const *types = get_sys_types();
|
---|
981 |
|
---|
982 | for (i = 0; types[i]; i++)
|
---|
983 | if ((unsigned char)types[i][0] == type)
|
---|
984 | return types[i] + 1;
|
---|
985 |
|
---|
986 | return "Unknown";
|
---|
987 | }
|
---|
988 |
|
---|
989 | static int
|
---|
990 | is_cleared_partition(const struct partition *p)
|
---|
991 | {
|
---|
992 | /* We consider partition "cleared" only if it has only zeros */
|
---|
993 | const char *cp = (const char *)p;
|
---|
994 | int cnt = sizeof(*p);
|
---|
995 | char bits = 0;
|
---|
996 | while (--cnt >= 0)
|
---|
997 | bits |= *cp++;
|
---|
998 | return (bits == 0);
|
---|
999 | }
|
---|
1000 |
|
---|
1001 | static void
|
---|
1002 | clear_partition(struct partition *p)
|
---|
1003 | {
|
---|
1004 | if (p)
|
---|
1005 | memset(p, 0, sizeof(*p));
|
---|
1006 | }
|
---|
1007 |
|
---|
1008 | #if ENABLE_FEATURE_FDISK_WRITABLE
|
---|
1009 | static int
|
---|
1010 | get_sysid(int i)
|
---|
1011 | {
|
---|
1012 | return LABEL_IS_SUN ? sunlabel->infos[i].id :
|
---|
1013 | (LABEL_IS_SGI ? sgi_get_sysid(i) :
|
---|
1014 | ptes[i].part_table->sys_ind);
|
---|
1015 | }
|
---|
1016 |
|
---|
1017 | static void
|
---|
1018 | list_types(const char *const *sys)
|
---|
1019 | {
|
---|
1020 | enum { COLS = 3 };
|
---|
1021 |
|
---|
1022 | unsigned last[COLS];
|
---|
1023 | unsigned done, next, size;
|
---|
1024 | int i;
|
---|
1025 |
|
---|
1026 | for (size = 0; sys[size]; size++)
|
---|
1027 | continue;
|
---|
1028 |
|
---|
1029 | done = 0;
|
---|
1030 | for (i = COLS-1; i >= 0; i--) {
|
---|
1031 | done += (size + i - done) / (i + 1);
|
---|
1032 | last[COLS-1 - i] = done;
|
---|
1033 | }
|
---|
1034 |
|
---|
1035 | i = done = next = 0;
|
---|
1036 | do {
|
---|
1037 | printf("%c%2x %-22.22s", i ? ' ' : '\n',
|
---|
1038 | (unsigned char)sys[next][0],
|
---|
1039 | sys[next] + 1);
|
---|
1040 | next = last[i++] + done;
|
---|
1041 | if (i >= COLS || next >= last[i]) {
|
---|
1042 | i = 0;
|
---|
1043 | next = ++done;
|
---|
1044 | }
|
---|
1045 | } while (done < last[0]);
|
---|
1046 | bb_putchar('\n');
|
---|
1047 | }
|
---|
1048 |
|
---|
1049 | #define set_hsc(h, s, c, sector) do \
|
---|
1050 | { \
|
---|
1051 | s = sector % g_sectors + 1; \
|
---|
1052 | sector /= g_sectors; \
|
---|
1053 | h = sector % g_heads; \
|
---|
1054 | sector /= g_heads; \
|
---|
1055 | c = sector & 0xff; \
|
---|
1056 | s |= (sector >> 2) & 0xc0; \
|
---|
1057 | } while (0)
|
---|
1058 |
|
---|
1059 | static void set_hsc_start_end(struct partition *p, sector_t start, sector_t stop)
|
---|
1060 | {
|
---|
1061 | if (dos_compatible_flag && (start / (g_sectors * g_heads) > 1023))
|
---|
1062 | start = g_heads * g_sectors * 1024 - 1;
|
---|
1063 | set_hsc(p->head, p->sector, p->cyl, start);
|
---|
1064 |
|
---|
1065 | if (dos_compatible_flag && (stop / (g_sectors * g_heads) > 1023))
|
---|
1066 | stop = g_heads * g_sectors * 1024 - 1;
|
---|
1067 | set_hsc(p->end_head, p->end_sector, p->end_cyl, stop);
|
---|
1068 | }
|
---|
1069 |
|
---|
1070 | static void
|
---|
1071 | set_partition(int i, int doext, sector_t start, sector_t stop, int sysid)
|
---|
1072 | {
|
---|
1073 | struct partition *p;
|
---|
1074 | sector_t offset;
|
---|
1075 |
|
---|
1076 | if (doext) {
|
---|
1077 | p = ptes[i].ext_pointer;
|
---|
1078 | offset = extended_offset;
|
---|
1079 | } else {
|
---|
1080 | p = ptes[i].part_table;
|
---|
1081 | offset = ptes[i].offset_from_dev_start;
|
---|
1082 | }
|
---|
1083 | p->boot_ind = 0;
|
---|
1084 | p->sys_ind = sysid;
|
---|
1085 | set_start_sect(p, start - offset);
|
---|
1086 | set_nr_sects(p, stop - start + 1);
|
---|
1087 | set_hsc_start_end(p, start, stop);
|
---|
1088 | ptes[i].changed = 1;
|
---|
1089 | }
|
---|
1090 | #endif
|
---|
1091 |
|
---|
1092 | static int
|
---|
1093 | warn_geometry(void)
|
---|
1094 | {
|
---|
1095 | if (g_heads && g_sectors && g_cylinders)
|
---|
1096 | return 0;
|
---|
1097 |
|
---|
1098 | printf("Unknown value(s) for:");
|
---|
1099 | if (!g_heads)
|
---|
1100 | printf(" heads");
|
---|
1101 | if (!g_sectors)
|
---|
1102 | printf(" sectors");
|
---|
1103 | if (!g_cylinders)
|
---|
1104 | printf(" cylinders");
|
---|
1105 | printf(
|
---|
1106 | #if ENABLE_FEATURE_FDISK_WRITABLE
|
---|
1107 | " (settable in the extra functions menu)"
|
---|
1108 | #endif
|
---|
1109 | "\n");
|
---|
1110 | return 1;
|
---|
1111 | }
|
---|
1112 |
|
---|
1113 | static void
|
---|
1114 | update_units(void)
|
---|
1115 | {
|
---|
1116 | int cyl_units = g_heads * g_sectors;
|
---|
1117 |
|
---|
1118 | if (display_in_cyl_units && cyl_units)
|
---|
1119 | units_per_sector = cyl_units;
|
---|
1120 | else
|
---|
1121 | units_per_sector = 1; /* in sectors */
|
---|
1122 | }
|
---|
1123 |
|
---|
1124 | #if ENABLE_FEATURE_FDISK_WRITABLE
|
---|
1125 | static void
|
---|
1126 | warn_cylinders(void)
|
---|
1127 | {
|
---|
1128 | if (LABEL_IS_DOS && g_cylinders > 1024 && !nowarn)
|
---|
1129 | printf("\n"
|
---|
1130 | "The number of cylinders for this disk is set to %u.\n"
|
---|
1131 | "There is nothing wrong with that, but this is larger than 1024,\n"
|
---|
1132 | "and could in certain setups cause problems with:\n"
|
---|
1133 | "1) software that runs at boot time (e.g., old versions of LILO)\n"
|
---|
1134 | "2) booting and partitioning software from other OSs\n"
|
---|
1135 | " (e.g., DOS FDISK, OS/2 FDISK)\n",
|
---|
1136 | g_cylinders);
|
---|
1137 | }
|
---|
1138 | #endif
|
---|
1139 |
|
---|
1140 | static void
|
---|
1141 | read_extended(int ext)
|
---|
1142 | {
|
---|
1143 | int i;
|
---|
1144 | struct pte *pex;
|
---|
1145 | struct partition *p, *q;
|
---|
1146 |
|
---|
1147 | ext_index = ext;
|
---|
1148 | pex = &ptes[ext];
|
---|
1149 | pex->ext_pointer = pex->part_table;
|
---|
1150 |
|
---|
1151 | p = pex->part_table;
|
---|
1152 | if (!get_start_sect(p)) {
|
---|
1153 | printf("Bad offset in primary extended partition\n");
|
---|
1154 | return;
|
---|
1155 | }
|
---|
1156 |
|
---|
1157 | while (IS_EXTENDED(p->sys_ind)) {
|
---|
1158 | struct pte *pe = &ptes[g_partitions];
|
---|
1159 |
|
---|
1160 | if (g_partitions >= MAXIMUM_PARTS) {
|
---|
1161 | /* This is not a Linux restriction, but
|
---|
1162 | this program uses arrays of size MAXIMUM_PARTS.
|
---|
1163 | Do not try to 'improve' this test. */
|
---|
1164 | struct pte *pre = &ptes[g_partitions - 1];
|
---|
1165 | #if ENABLE_FEATURE_FDISK_WRITABLE
|
---|
1166 | printf("Warning: deleting partitions after %u\n",
|
---|
1167 | g_partitions);
|
---|
1168 | pre->changed = 1;
|
---|
1169 | #endif
|
---|
1170 | clear_partition(pre->ext_pointer);
|
---|
1171 | return;
|
---|
1172 | }
|
---|
1173 |
|
---|
1174 | read_pte(pe, extended_offset + get_start_sect(p));
|
---|
1175 |
|
---|
1176 | if (!extended_offset)
|
---|
1177 | extended_offset = get_start_sect(p);
|
---|
1178 |
|
---|
1179 | q = p = pt_offset(pe->sectorbuffer, 0);
|
---|
1180 | for (i = 0; i < 4; i++, p++) if (get_nr_sects(p)) {
|
---|
1181 | if (IS_EXTENDED(p->sys_ind)) {
|
---|
1182 | if (pe->ext_pointer)
|
---|
1183 | printf("Warning: extra link "
|
---|
1184 | "pointer in partition table"
|
---|
1185 | " %u\n", g_partitions + 1);
|
---|
1186 | else
|
---|
1187 | pe->ext_pointer = p;
|
---|
1188 | } else if (p->sys_ind) {
|
---|
1189 | if (pe->part_table)
|
---|
1190 | printf("Warning: ignoring extra "
|
---|
1191 | "data in partition table"
|
---|
1192 | " %u\n", g_partitions + 1);
|
---|
1193 | else
|
---|
1194 | pe->part_table = p;
|
---|
1195 | }
|
---|
1196 | }
|
---|
1197 |
|
---|
1198 | /* very strange code here... */
|
---|
1199 | if (!pe->part_table) {
|
---|
1200 | if (q != pe->ext_pointer)
|
---|
1201 | pe->part_table = q;
|
---|
1202 | else
|
---|
1203 | pe->part_table = q + 1;
|
---|
1204 | }
|
---|
1205 | if (!pe->ext_pointer) {
|
---|
1206 | if (q != pe->part_table)
|
---|
1207 | pe->ext_pointer = q;
|
---|
1208 | else
|
---|
1209 | pe->ext_pointer = q + 1;
|
---|
1210 | }
|
---|
1211 |
|
---|
1212 | p = pe->ext_pointer;
|
---|
1213 | g_partitions++;
|
---|
1214 | }
|
---|
1215 |
|
---|
1216 | #if ENABLE_FEATURE_FDISK_WRITABLE
|
---|
1217 | /* remove empty links */
|
---|
1218 | remove:
|
---|
1219 | for (i = 4; i < g_partitions; i++) {
|
---|
1220 | struct pte *pe = &ptes[i];
|
---|
1221 |
|
---|
1222 | if (!get_nr_sects(pe->part_table)
|
---|
1223 | && (g_partitions > 5 || ptes[4].part_table->sys_ind)
|
---|
1224 | ) {
|
---|
1225 | printf("Omitting empty partition (%u)\n", i+1);
|
---|
1226 | delete_partition(i);
|
---|
1227 | goto remove; /* numbering changed */
|
---|
1228 | }
|
---|
1229 | }
|
---|
1230 | #endif
|
---|
1231 | }
|
---|
1232 |
|
---|
1233 | #if ENABLE_FEATURE_FDISK_WRITABLE
|
---|
1234 | static void
|
---|
1235 | create_doslabel(void)
|
---|
1236 | {
|
---|
1237 | printf(msg_building_new_label, "DOS disklabel");
|
---|
1238 |
|
---|
1239 | current_label_type = LABEL_DOS;
|
---|
1240 | #if ENABLE_FEATURE_OSF_LABEL
|
---|
1241 | possibly_osf_label = 0;
|
---|
1242 | #endif
|
---|
1243 | g_partitions = 4;
|
---|
1244 |
|
---|
1245 | memset(&MBRbuffer[510 - 4*16], 0, 4*16);
|
---|
1246 | write_part_table_flag(MBRbuffer);
|
---|
1247 | extended_offset = 0;
|
---|
1248 | set_all_unchanged();
|
---|
1249 | set_changed(0);
|
---|
1250 | get_boot(CREATE_EMPTY_DOS);
|
---|
1251 | }
|
---|
1252 | #endif
|
---|
1253 |
|
---|
1254 | static void
|
---|
1255 | get_sectorsize(void)
|
---|
1256 | {
|
---|
1257 | if (!user_set_sector_size) {
|
---|
1258 | int arg;
|
---|
1259 | if (ioctl(dev_fd, BLKSSZGET, &arg) == 0)
|
---|
1260 | sector_size = arg;
|
---|
1261 | if (sector_size != DEFAULT_SECTOR_SIZE)
|
---|
1262 | printf("Note: sector size is %u "
|
---|
1263 | "(not " DEFAULT_SECTOR_SIZE_STR ")\n",
|
---|
1264 | sector_size);
|
---|
1265 | }
|
---|
1266 | }
|
---|
1267 |
|
---|
1268 | static void
|
---|
1269 | get_kernel_geometry(void)
|
---|
1270 | {
|
---|
1271 | struct hd_geometry geometry;
|
---|
1272 |
|
---|
1273 | if (!ioctl(dev_fd, HDIO_GETGEO, &geometry)) {
|
---|
1274 | kern_heads = geometry.heads;
|
---|
1275 | kern_sectors = geometry.sectors;
|
---|
1276 | /* never use geometry.cylinders - it is truncated */
|
---|
1277 | }
|
---|
1278 | }
|
---|
1279 |
|
---|
1280 | static void
|
---|
1281 | get_partition_table_geometry(void)
|
---|
1282 | {
|
---|
1283 | const unsigned char *bufp = (const unsigned char *)MBRbuffer;
|
---|
1284 | struct partition *p;
|
---|
1285 | int i, h, s, hh, ss;
|
---|
1286 | int first = 1;
|
---|
1287 | int bad = 0;
|
---|
1288 |
|
---|
1289 | if (!(valid_part_table_flag((char*)bufp)))
|
---|
1290 | return;
|
---|
1291 |
|
---|
1292 | hh = ss = 0;
|
---|
1293 | for (i = 0; i < 4; i++) {
|
---|
1294 | p = pt_offset(bufp, i);
|
---|
1295 | if (p->sys_ind != 0) {
|
---|
1296 | h = p->end_head + 1;
|
---|
1297 | s = (p->end_sector & 077);
|
---|
1298 | if (first) {
|
---|
1299 | hh = h;
|
---|
1300 | ss = s;
|
---|
1301 | first = 0;
|
---|
1302 | } else if (hh != h || ss != s)
|
---|
1303 | bad = 1;
|
---|
1304 | }
|
---|
1305 | }
|
---|
1306 |
|
---|
1307 | if (!first && !bad) {
|
---|
1308 | pt_heads = hh;
|
---|
1309 | pt_sectors = ss;
|
---|
1310 | }
|
---|
1311 | }
|
---|
1312 |
|
---|
1313 | static void
|
---|
1314 | get_geometry(void)
|
---|
1315 | {
|
---|
1316 | int sec_fac;
|
---|
1317 |
|
---|
1318 | get_sectorsize();
|
---|
1319 | sec_fac = sector_size / 512;
|
---|
1320 | #if ENABLE_FEATURE_SUN_LABEL
|
---|
1321 | guess_device_type();
|
---|
1322 | #endif
|
---|
1323 | g_heads = g_cylinders = g_sectors = 0;
|
---|
1324 | kern_heads = kern_sectors = 0;
|
---|
1325 | pt_heads = pt_sectors = 0;
|
---|
1326 |
|
---|
1327 | get_kernel_geometry();
|
---|
1328 | get_partition_table_geometry();
|
---|
1329 |
|
---|
1330 | g_heads = user_heads ? user_heads :
|
---|
1331 | pt_heads ? pt_heads :
|
---|
1332 | kern_heads ? kern_heads : 255;
|
---|
1333 | g_sectors = user_sectors ? user_sectors :
|
---|
1334 | pt_sectors ? pt_sectors :
|
---|
1335 | kern_sectors ? kern_sectors : 63;
|
---|
1336 | total_number_of_sectors = bb_BLKGETSIZE_sectors(dev_fd);
|
---|
1337 |
|
---|
1338 | sector_offset = 1;
|
---|
1339 | if (dos_compatible_flag)
|
---|
1340 | sector_offset = g_sectors;
|
---|
1341 |
|
---|
1342 | g_cylinders = total_number_of_sectors / (g_heads * g_sectors * sec_fac);
|
---|
1343 | if (!g_cylinders)
|
---|
1344 | g_cylinders = user_cylinders;
|
---|
1345 | }
|
---|
1346 |
|
---|
1347 | /*
|
---|
1348 | * Opens disk_device and optionally reads MBR.
|
---|
1349 | * If what == OPEN_MAIN:
|
---|
1350 | * Open device, read MBR. Abort program on short read. Create empty
|
---|
1351 | * disklabel if the on-disk structure is invalid (WRITABLE mode).
|
---|
1352 | * If what == TRY_ONLY:
|
---|
1353 | * Open device, read MBR. Return an error if anything is out of place.
|
---|
1354 | * Do not create an empty disklabel. This is used for the "list"
|
---|
1355 | * operations: "fdisk -l /dev/sda" and "fdisk -l" (all devices).
|
---|
1356 | * If what == CREATE_EMPTY_*:
|
---|
1357 | * This means that get_boot() was called recursively from create_*label().
|
---|
1358 | * Do not re-open the device; just set up the ptes array and print
|
---|
1359 | * geometry warnings.
|
---|
1360 | *
|
---|
1361 | * Returns:
|
---|
1362 | * -1: no 0xaa55 flag present (possibly entire disk BSD)
|
---|
1363 | * 0: found or created label
|
---|
1364 | * 1: I/O error
|
---|
1365 | */
|
---|
1366 | #if ENABLE_FEATURE_SUN_LABEL || ENABLE_FEATURE_FDISK_WRITABLE
|
---|
1367 | static int get_boot(enum action what)
|
---|
1368 | #else
|
---|
1369 | static int get_boot(void)
|
---|
1370 | #define get_boot(what) get_boot()
|
---|
1371 | #endif
|
---|
1372 | {
|
---|
1373 | int i, fd;
|
---|
1374 |
|
---|
1375 | g_partitions = 4;
|
---|
1376 | for (i = 0; i < 4; i++) {
|
---|
1377 | struct pte *pe = &ptes[i];
|
---|
1378 | pe->part_table = pt_offset(MBRbuffer, i);
|
---|
1379 | pe->ext_pointer = NULL;
|
---|
1380 | pe->offset_from_dev_start = 0;
|
---|
1381 | pe->sectorbuffer = MBRbuffer;
|
---|
1382 | #if ENABLE_FEATURE_FDISK_WRITABLE
|
---|
1383 | pe->changed = (what == CREATE_EMPTY_DOS);
|
---|
1384 | #endif
|
---|
1385 | }
|
---|
1386 |
|
---|
1387 | #if ENABLE_FEATURE_FDISK_WRITABLE
|
---|
1388 | // ALERT! highly idiotic design!
|
---|
1389 | // We end up here when we call get_boot() recursively
|
---|
1390 | // via get_boot() [table is bad] -> create_doslabel() -> get_boot(CREATE_EMPTY_DOS).
|
---|
1391 | // or get_boot() [table is bad] -> create_sunlabel() -> get_boot(CREATE_EMPTY_SUN).
|
---|
1392 | // (just factor out re-init of ptes[0,1,2,3] in a separate fn instead?)
|
---|
1393 | // So skip opening device _again_...
|
---|
1394 | if (what == CREATE_EMPTY_DOS IF_FEATURE_SUN_LABEL(|| what == CREATE_EMPTY_SUN))
|
---|
1395 | goto created_table;
|
---|
1396 |
|
---|
1397 | fd = open(disk_device, (option_mask32 & OPT_l) ? O_RDONLY : O_RDWR);
|
---|
1398 |
|
---|
1399 | if (fd < 0) {
|
---|
1400 | fd = open(disk_device, O_RDONLY);
|
---|
1401 | if (fd < 0) {
|
---|
1402 | if (what == TRY_ONLY)
|
---|
1403 | return 1;
|
---|
1404 | fdisk_fatal(unable_to_open);
|
---|
1405 | }
|
---|
1406 | printf("'%s' is opened for read only\n", disk_device);
|
---|
1407 | }
|
---|
1408 | xmove_fd(fd, dev_fd);
|
---|
1409 | if (512 != full_read(dev_fd, MBRbuffer, 512)) {
|
---|
1410 | if (what == TRY_ONLY) {
|
---|
1411 | close_dev_fd();
|
---|
1412 | return 1;
|
---|
1413 | }
|
---|
1414 | fdisk_fatal(unable_to_read);
|
---|
1415 | }
|
---|
1416 | #else
|
---|
1417 | fd = open(disk_device, O_RDONLY);
|
---|
1418 | if (fd < 0)
|
---|
1419 | return 1;
|
---|
1420 | if (512 != full_read(fd, MBRbuffer, 512)) {
|
---|
1421 | close(fd);
|
---|
1422 | return 1;
|
---|
1423 | }
|
---|
1424 | xmove_fd(fd, dev_fd);
|
---|
1425 | #endif
|
---|
1426 |
|
---|
1427 | get_geometry();
|
---|
1428 | update_units();
|
---|
1429 |
|
---|
1430 | #if ENABLE_FEATURE_SUN_LABEL
|
---|
1431 | if (check_sun_label())
|
---|
1432 | return 0;
|
---|
1433 | #endif
|
---|
1434 | #if ENABLE_FEATURE_SGI_LABEL
|
---|
1435 | if (check_sgi_label())
|
---|
1436 | return 0;
|
---|
1437 | #endif
|
---|
1438 | #if ENABLE_FEATURE_AIX_LABEL
|
---|
1439 | if (check_aix_label())
|
---|
1440 | return 0;
|
---|
1441 | #endif
|
---|
1442 | #if ENABLE_FEATURE_GPT_LABEL
|
---|
1443 | if (check_gpt_label())
|
---|
1444 | return 0;
|
---|
1445 | #endif
|
---|
1446 | #if ENABLE_FEATURE_OSF_LABEL
|
---|
1447 | if (check_osf_label()) {
|
---|
1448 | possibly_osf_label = 1;
|
---|
1449 | if (!valid_part_table_flag(MBRbuffer)) {
|
---|
1450 | current_label_type = LABEL_OSF;
|
---|
1451 | return 0;
|
---|
1452 | }
|
---|
1453 | printf("This disk has both DOS and BSD magic.\n"
|
---|
1454 | "Give the 'b' command to go to BSD mode.\n");
|
---|
1455 | }
|
---|
1456 | #endif
|
---|
1457 |
|
---|
1458 | #if !ENABLE_FEATURE_FDISK_WRITABLE
|
---|
1459 | if (!valid_part_table_flag(MBRbuffer))
|
---|
1460 | return -1;
|
---|
1461 | #else
|
---|
1462 | if (!valid_part_table_flag(MBRbuffer)) {
|
---|
1463 | if (what == OPEN_MAIN) {
|
---|
1464 | printf("Device contains neither a valid DOS "
|
---|
1465 | "partition table, nor Sun, SGI, OSF or GPT "
|
---|
1466 | "disklabel\n");
|
---|
1467 | #ifdef __sparc__
|
---|
1468 | IF_FEATURE_SUN_LABEL(create_sunlabel();)
|
---|
1469 | #else
|
---|
1470 | create_doslabel();
|
---|
1471 | #endif
|
---|
1472 | return 0;
|
---|
1473 | }
|
---|
1474 | /* TRY_ONLY: */
|
---|
1475 | return -1;
|
---|
1476 | }
|
---|
1477 | created_table:
|
---|
1478 | #endif /* FEATURE_FDISK_WRITABLE */
|
---|
1479 |
|
---|
1480 |
|
---|
1481 | IF_FEATURE_FDISK_WRITABLE(warn_cylinders();)
|
---|
1482 | warn_geometry();
|
---|
1483 |
|
---|
1484 | for (i = 0; i < 4; i++) {
|
---|
1485 | if (IS_EXTENDED(ptes[i].part_table->sys_ind)) {
|
---|
1486 | if (g_partitions != 4)
|
---|
1487 | printf("Ignoring extra extended "
|
---|
1488 | "partition %u\n", i + 1);
|
---|
1489 | else
|
---|
1490 | read_extended(i);
|
---|
1491 | }
|
---|
1492 | }
|
---|
1493 |
|
---|
1494 | for (i = 3; i < g_partitions; i++) {
|
---|
1495 | struct pte *pe = &ptes[i];
|
---|
1496 | if (!valid_part_table_flag(pe->sectorbuffer)) {
|
---|
1497 | printf("Warning: invalid flag 0x%02x,0x%02x of partition "
|
---|
1498 | "table %u will be corrected by w(rite)\n",
|
---|
1499 | pe->sectorbuffer[510],
|
---|
1500 | pe->sectorbuffer[511],
|
---|
1501 | i + 1);
|
---|
1502 | IF_FEATURE_FDISK_WRITABLE(pe->changed = 1;)
|
---|
1503 | }
|
---|
1504 | }
|
---|
1505 |
|
---|
1506 | return 0;
|
---|
1507 | }
|
---|
1508 |
|
---|
1509 | #if ENABLE_FEATURE_FDISK_WRITABLE
|
---|
1510 | /*
|
---|
1511 | * Print the message MESG, then read an integer between LOW and HIGH (inclusive).
|
---|
1512 | * If the user hits Enter, DFLT is returned.
|
---|
1513 | * Answers like +10 are interpreted as offsets from BASE.
|
---|
1514 | *
|
---|
1515 | * There is no default if DFLT is not between LOW and HIGH.
|
---|
1516 | */
|
---|
1517 | static sector_t
|
---|
1518 | read_int(sector_t low, sector_t dflt, sector_t high, sector_t base, const char *mesg)
|
---|
1519 | {
|
---|
1520 | sector_t value;
|
---|
1521 | int default_ok = 1;
|
---|
1522 | const char *fmt = "%s (%u-%u, default %u): ";
|
---|
1523 |
|
---|
1524 | if (dflt < low || dflt > high) {
|
---|
1525 | fmt = "%s (%u-%u): ";
|
---|
1526 | default_ok = 0;
|
---|
1527 | }
|
---|
1528 |
|
---|
1529 | while (1) {
|
---|
1530 | int use_default = default_ok;
|
---|
1531 |
|
---|
1532 | /* ask question and read answer */
|
---|
1533 | do {
|
---|
1534 | printf(fmt, mesg, low, high, dflt);
|
---|
1535 | read_maybe_empty("");
|
---|
1536 | } while (*line_ptr != '\n' && !isdigit(*line_ptr)
|
---|
1537 | && *line_ptr != '-' && *line_ptr != '+');
|
---|
1538 |
|
---|
1539 | if (*line_ptr == '+' || *line_ptr == '-') {
|
---|
1540 | int minus = (*line_ptr == '-');
|
---|
1541 | int absolute = 0;
|
---|
1542 |
|
---|
1543 | value = atoi(line_ptr + 1);
|
---|
1544 |
|
---|
1545 | /* (1) if 2nd char is digit, use_default = 0.
|
---|
1546 | * (2) move line_ptr to first non-digit. */
|
---|
1547 | while (isdigit(*++line_ptr))
|
---|
1548 | use_default = 0;
|
---|
1549 |
|
---|
1550 | switch (*line_ptr) {
|
---|
1551 | case 'c':
|
---|
1552 | case 'C':
|
---|
1553 | if (!display_in_cyl_units)
|
---|
1554 | value *= g_heads * g_sectors;
|
---|
1555 | break;
|
---|
1556 | case 'K':
|
---|
1557 | absolute = 1024;
|
---|
1558 | break;
|
---|
1559 | case 'k':
|
---|
1560 | absolute = 1000;
|
---|
1561 | break;
|
---|
1562 | case 'm':
|
---|
1563 | case 'M':
|
---|
1564 | absolute = 1000000;
|
---|
1565 | break;
|
---|
1566 | case 'g':
|
---|
1567 | case 'G':
|
---|
1568 | absolute = 1000000000;
|
---|
1569 | break;
|
---|
1570 | default:
|
---|
1571 | break;
|
---|
1572 | }
|
---|
1573 | if (absolute) {
|
---|
1574 | ullong bytes;
|
---|
1575 | unsigned long unit;
|
---|
1576 |
|
---|
1577 | bytes = (ullong) value * absolute;
|
---|
1578 | unit = sector_size * units_per_sector;
|
---|
1579 | bytes += unit/2; /* round */
|
---|
1580 | bytes /= unit;
|
---|
1581 | value = bytes;
|
---|
1582 | }
|
---|
1583 | if (minus)
|
---|
1584 | value = -value;
|
---|
1585 | value += base;
|
---|
1586 | } else {
|
---|
1587 | value = atoi(line_ptr);
|
---|
1588 | while (isdigit(*line_ptr)) {
|
---|
1589 | line_ptr++;
|
---|
1590 | use_default = 0;
|
---|
1591 | }
|
---|
1592 | }
|
---|
1593 | if (use_default) {
|
---|
1594 | value = dflt;
|
---|
1595 | printf("Using default value %u\n", value);
|
---|
1596 | }
|
---|
1597 | if (value >= low && value <= high)
|
---|
1598 | break;
|
---|
1599 | printf("Value is out of range\n");
|
---|
1600 | }
|
---|
1601 | return value;
|
---|
1602 | }
|
---|
1603 |
|
---|
1604 | static unsigned
|
---|
1605 | get_partition(int warn, unsigned max)
|
---|
1606 | {
|
---|
1607 | struct pte *pe;
|
---|
1608 | unsigned i;
|
---|
1609 |
|
---|
1610 | i = read_int(1, 0, max, 0, "Partition number") - 1;
|
---|
1611 | pe = &ptes[i];
|
---|
1612 |
|
---|
1613 | if (warn) {
|
---|
1614 | if ((!LABEL_IS_SUN && !LABEL_IS_SGI && !pe->part_table->sys_ind)
|
---|
1615 | || (LABEL_IS_SUN && (!sunlabel->partitions[i].num_sectors || !sunlabel->infos[i].id))
|
---|
1616 | || (LABEL_IS_SGI && !sgi_get_num_sectors(i))
|
---|
1617 | ) {
|
---|
1618 | printf("Warning: partition %u has empty type\n", i+1);
|
---|
1619 | }
|
---|
1620 | }
|
---|
1621 | return i;
|
---|
1622 | }
|
---|
1623 |
|
---|
1624 | static int
|
---|
1625 | get_existing_partition(int warn, unsigned max)
|
---|
1626 | {
|
---|
1627 | int pno = -1;
|
---|
1628 | unsigned i;
|
---|
1629 |
|
---|
1630 | for (i = 0; i < max; i++) {
|
---|
1631 | struct pte *pe = &ptes[i];
|
---|
1632 | struct partition *p = pe->part_table;
|
---|
1633 |
|
---|
1634 | if (p && !is_cleared_partition(p)) {
|
---|
1635 | if (pno >= 0)
|
---|
1636 | goto not_unique;
|
---|
1637 | pno = i;
|
---|
1638 | }
|
---|
1639 | }
|
---|
1640 | if (pno >= 0) {
|
---|
1641 | printf("Selected partition %u\n", pno+1);
|
---|
1642 | return pno;
|
---|
1643 | }
|
---|
1644 | printf("No partition is defined yet!\n");
|
---|
1645 | return -1;
|
---|
1646 |
|
---|
1647 | not_unique:
|
---|
1648 | return get_partition(warn, max);
|
---|
1649 | }
|
---|
1650 |
|
---|
1651 | static int
|
---|
1652 | get_nonexisting_partition(int warn, unsigned max)
|
---|
1653 | {
|
---|
1654 | int pno = -1;
|
---|
1655 | unsigned i;
|
---|
1656 |
|
---|
1657 | for (i = 0; i < max; i++) {
|
---|
1658 | struct pte *pe = &ptes[i];
|
---|
1659 | struct partition *p = pe->part_table;
|
---|
1660 |
|
---|
1661 | if (p && is_cleared_partition(p)) {
|
---|
1662 | if (pno >= 0)
|
---|
1663 | goto not_unique;
|
---|
1664 | pno = i;
|
---|
1665 | }
|
---|
1666 | }
|
---|
1667 | if (pno >= 0) {
|
---|
1668 | printf("Selected partition %u\n", pno+1);
|
---|
1669 | return pno;
|
---|
1670 | }
|
---|
1671 | printf("All primary partitions have been defined already!\n");
|
---|
1672 | return -1;
|
---|
1673 |
|
---|
1674 | not_unique:
|
---|
1675 | return get_partition(warn, max);
|
---|
1676 | }
|
---|
1677 |
|
---|
1678 |
|
---|
1679 | static void
|
---|
1680 | change_units(void)
|
---|
1681 | {
|
---|
1682 | display_in_cyl_units = !display_in_cyl_units;
|
---|
1683 | update_units();
|
---|
1684 | printf("Changing display/entry units to %s\n",
|
---|
1685 | str_units(PLURAL));
|
---|
1686 | }
|
---|
1687 |
|
---|
1688 | static void
|
---|
1689 | toggle_active(int i)
|
---|
1690 | {
|
---|
1691 | struct pte *pe = &ptes[i];
|
---|
1692 | struct partition *p = pe->part_table;
|
---|
1693 |
|
---|
1694 | if (IS_EXTENDED(p->sys_ind) && !p->boot_ind)
|
---|
1695 | printf("WARNING: Partition %u is an extended partition\n", i + 1);
|
---|
1696 | p->boot_ind = (p->boot_ind ? 0 : ACTIVE_FLAG);
|
---|
1697 | pe->changed = 1;
|
---|
1698 | }
|
---|
1699 |
|
---|
1700 | static void
|
---|
1701 | toggle_dos_compatibility_flag(void)
|
---|
1702 | {
|
---|
1703 | dos_compatible_flag = 1 - dos_compatible_flag;
|
---|
1704 | if (dos_compatible_flag) {
|
---|
1705 | sector_offset = g_sectors;
|
---|
1706 | printf("DOS Compatibility flag is set\n");
|
---|
1707 | } else {
|
---|
1708 | sector_offset = 1;
|
---|
1709 | printf("DOS Compatibility flag is not set\n");
|
---|
1710 | }
|
---|
1711 | }
|
---|
1712 |
|
---|
1713 | static void
|
---|
1714 | delete_partition(int i)
|
---|
1715 | {
|
---|
1716 | struct pte *pe = &ptes[i];
|
---|
1717 | struct partition *p = pe->part_table;
|
---|
1718 | struct partition *q = pe->ext_pointer;
|
---|
1719 |
|
---|
1720 | /* Note that for the fifth partition (i == 4) we don't actually
|
---|
1721 | * decrement partitions.
|
---|
1722 | */
|
---|
1723 |
|
---|
1724 | if (warn_geometry())
|
---|
1725 | return; /* C/H/S not set */
|
---|
1726 | pe->changed = 1;
|
---|
1727 |
|
---|
1728 | if (LABEL_IS_SUN) {
|
---|
1729 | sun_delete_partition(i);
|
---|
1730 | return;
|
---|
1731 | }
|
---|
1732 | if (LABEL_IS_SGI) {
|
---|
1733 | sgi_delete_partition(i);
|
---|
1734 | return;
|
---|
1735 | }
|
---|
1736 |
|
---|
1737 | if (i < 4) {
|
---|
1738 | if (IS_EXTENDED(p->sys_ind) && i == ext_index) {
|
---|
1739 | g_partitions = 4;
|
---|
1740 | ptes[ext_index].ext_pointer = NULL;
|
---|
1741 | extended_offset = 0;
|
---|
1742 | }
|
---|
1743 | clear_partition(p);
|
---|
1744 | return;
|
---|
1745 | }
|
---|
1746 |
|
---|
1747 | if (!q->sys_ind && i > 4) {
|
---|
1748 | /* the last one in the chain - just delete */
|
---|
1749 | --g_partitions;
|
---|
1750 | --i;
|
---|
1751 | clear_partition(ptes[i].ext_pointer);
|
---|
1752 | ptes[i].changed = 1;
|
---|
1753 | } else {
|
---|
1754 | /* not the last one - further ones will be moved down */
|
---|
1755 | if (i > 4) {
|
---|
1756 | /* delete this link in the chain */
|
---|
1757 | p = ptes[i-1].ext_pointer;
|
---|
1758 | *p = *q;
|
---|
1759 | set_start_sect(p, get_start_sect(q));
|
---|
1760 | set_nr_sects(p, get_nr_sects(q));
|
---|
1761 | ptes[i-1].changed = 1;
|
---|
1762 | } else if (g_partitions > 5) { /* 5 will be moved to 4 */
|
---|
1763 | /* the first logical in a longer chain */
|
---|
1764 | pe = &ptes[5];
|
---|
1765 |
|
---|
1766 | if (pe->part_table) /* prevent SEGFAULT */
|
---|
1767 | set_start_sect(pe->part_table,
|
---|
1768 | get_partition_start_from_dev_start(pe) -
|
---|
1769 | extended_offset);
|
---|
1770 | pe->offset_from_dev_start = extended_offset;
|
---|
1771 | pe->changed = 1;
|
---|
1772 | }
|
---|
1773 |
|
---|
1774 | if (g_partitions > 5) {
|
---|
1775 | g_partitions--;
|
---|
1776 | while (i < g_partitions) {
|
---|
1777 | ptes[i] = ptes[i+1];
|
---|
1778 | i++;
|
---|
1779 | }
|
---|
1780 | } else {
|
---|
1781 | /* the only logical: clear only */
|
---|
1782 | clear_partition(ptes[i].part_table);
|
---|
1783 | }
|
---|
1784 | }
|
---|
1785 | }
|
---|
1786 |
|
---|
1787 | static void
|
---|
1788 | change_sysid(void)
|
---|
1789 | {
|
---|
1790 | int i, sys, origsys;
|
---|
1791 | struct partition *p;
|
---|
1792 |
|
---|
1793 | /* If sgi_label then don't use get_existing_partition,
|
---|
1794 | let the user select a partition, since get_existing_partition()
|
---|
1795 | only works for Linux like partition tables. */
|
---|
1796 | if (!LABEL_IS_SGI) {
|
---|
1797 | i = get_existing_partition(0, g_partitions);
|
---|
1798 | } else {
|
---|
1799 | i = get_partition(0, g_partitions);
|
---|
1800 | }
|
---|
1801 | if (i == -1)
|
---|
1802 | return;
|
---|
1803 | p = ptes[i].part_table;
|
---|
1804 | origsys = sys = get_sysid(i);
|
---|
1805 |
|
---|
1806 | /* if changing types T to 0 is allowed, then
|
---|
1807 | the reverse change must be allowed, too */
|
---|
1808 | if (!sys && !LABEL_IS_SGI && !LABEL_IS_SUN && !get_nr_sects(p)) {
|
---|
1809 | printf("Partition %u does not exist yet!\n", i + 1);
|
---|
1810 | return;
|
---|
1811 | }
|
---|
1812 | while (1) {
|
---|
1813 | sys = read_hex(get_sys_types());
|
---|
1814 |
|
---|
1815 | if (!sys && !LABEL_IS_SGI && !LABEL_IS_SUN) {
|
---|
1816 | printf("Type 0 means free space to many systems\n"
|
---|
1817 | "(but not to Linux). Having partitions of\n"
|
---|
1818 | "type 0 is probably unwise.\n");
|
---|
1819 | /* break; */
|
---|
1820 | }
|
---|
1821 |
|
---|
1822 | if (!LABEL_IS_SUN && !LABEL_IS_SGI) {
|
---|
1823 | if (IS_EXTENDED(sys) != IS_EXTENDED(p->sys_ind)) {
|
---|
1824 | printf("You cannot change a partition into"
|
---|
1825 | " an extended one or vice versa\n");
|
---|
1826 | break;
|
---|
1827 | }
|
---|
1828 | }
|
---|
1829 |
|
---|
1830 | if (sys < 256) {
|
---|
1831 | #if ENABLE_FEATURE_SUN_LABEL
|
---|
1832 | if (LABEL_IS_SUN && i == 2 && sys != SUN_WHOLE_DISK)
|
---|
1833 | printf("Consider leaving partition 3 "
|
---|
1834 | "as Whole disk (5),\n"
|
---|
1835 | "as SunOS/Solaris expects it and "
|
---|
1836 | "even Linux likes it\n\n");
|
---|
1837 | #endif
|
---|
1838 | #if ENABLE_FEATURE_SGI_LABEL
|
---|
1839 | if (LABEL_IS_SGI &&
|
---|
1840 | (
|
---|
1841 | (i == 10 && sys != SGI_ENTIRE_DISK) ||
|
---|
1842 | (i == 8 && sys != 0)
|
---|
1843 | )
|
---|
1844 | ) {
|
---|
1845 | printf("Consider leaving partition 9 "
|
---|
1846 | "as volume header (0),\nand "
|
---|
1847 | "partition 11 as entire volume (6)"
|
---|
1848 | "as IRIX expects it\n\n");
|
---|
1849 | }
|
---|
1850 | #endif
|
---|
1851 | if (sys == origsys)
|
---|
1852 | break;
|
---|
1853 | if (LABEL_IS_SUN) {
|
---|
1854 | sun_change_sysid(i, sys);
|
---|
1855 | } else if (LABEL_IS_SGI) {
|
---|
1856 | sgi_change_sysid(i, sys);
|
---|
1857 | } else
|
---|
1858 | p->sys_ind = sys;
|
---|
1859 |
|
---|
1860 | printf("Changed system type of partition %u "
|
---|
1861 | "to %x (%s)\n", i + 1, sys,
|
---|
1862 | partition_type(sys));
|
---|
1863 | ptes[i].changed = 1;
|
---|
1864 | //if (is_dos_partition(origsys) || is_dos_partition(sys))
|
---|
1865 | // dos_changed = 1;
|
---|
1866 | break;
|
---|
1867 | }
|
---|
1868 | }
|
---|
1869 | }
|
---|
1870 | #endif /* FEATURE_FDISK_WRITABLE */
|
---|
1871 |
|
---|
1872 |
|
---|
1873 | /* check_consistency() and linear2chs() added Sat Mar 6 12:28:16 1993,
|
---|
1874 | * faith@cs.unc.edu, based on code fragments from pfdisk by Gordon W. Ross,
|
---|
1875 | * Jan. 1990 (version 1.2.1 by Gordon W. Ross Aug. 1990; Modified by S.
|
---|
1876 | * Lubkin Oct. 1991). */
|
---|
1877 |
|
---|
1878 | static void
|
---|
1879 | linear2chs(unsigned ls, unsigned *c, unsigned *h, unsigned *s)
|
---|
1880 | {
|
---|
1881 | int spc = g_heads * g_sectors;
|
---|
1882 |
|
---|
1883 | *c = ls / spc;
|
---|
1884 | ls = ls % spc;
|
---|
1885 | *h = ls / g_sectors;
|
---|
1886 | *s = ls % g_sectors + 1; /* sectors count from 1 */
|
---|
1887 | }
|
---|
1888 |
|
---|
1889 | static void
|
---|
1890 | check_consistency(const struct partition *p, int partition)
|
---|
1891 | {
|
---|
1892 | unsigned pbc, pbh, pbs; /* physical beginning c, h, s */
|
---|
1893 | unsigned pec, peh, pes; /* physical ending c, h, s */
|
---|
1894 | unsigned lbc, lbh, lbs; /* logical beginning c, h, s */
|
---|
1895 | unsigned lec, leh, les; /* logical ending c, h, s */
|
---|
1896 |
|
---|
1897 | if (!g_heads || !g_sectors || (partition >= 4))
|
---|
1898 | return; /* do not check extended partitions */
|
---|
1899 |
|
---|
1900 | /* physical beginning c, h, s */
|
---|
1901 | pbc = (p->cyl & 0xff) | ((p->sector << 2) & 0x300);
|
---|
1902 | pbh = p->head;
|
---|
1903 | pbs = p->sector & 0x3f;
|
---|
1904 |
|
---|
1905 | /* physical ending c, h, s */
|
---|
1906 | pec = (p->end_cyl & 0xff) | ((p->end_sector << 2) & 0x300);
|
---|
1907 | peh = p->end_head;
|
---|
1908 | pes = p->end_sector & 0x3f;
|
---|
1909 |
|
---|
1910 | /* compute logical beginning (c, h, s) */
|
---|
1911 | linear2chs(get_start_sect(p), &lbc, &lbh, &lbs);
|
---|
1912 |
|
---|
1913 | /* compute logical ending (c, h, s) */
|
---|
1914 | linear2chs(get_start_sect(p) + get_nr_sects(p) - 1, &lec, &leh, &les);
|
---|
1915 |
|
---|
1916 | /* Same physical / logical beginning? */
|
---|
1917 | if (g_cylinders <= 1024 && (pbc != lbc || pbh != lbh || pbs != lbs)) {
|
---|
1918 | printf("Partition %u has different physical/logical "
|
---|
1919 | "beginnings (non-Linux?):\n", partition + 1);
|
---|
1920 | printf(" phys=(%u, %u, %u) ", pbc, pbh, pbs);
|
---|
1921 | printf("logical=(%u, %u, %u)\n", lbc, lbh, lbs);
|
---|
1922 | }
|
---|
1923 |
|
---|
1924 | /* Same physical / logical ending? */
|
---|
1925 | if (g_cylinders <= 1024 && (pec != lec || peh != leh || pes != les)) {
|
---|
1926 | printf("Partition %u has different physical/logical "
|
---|
1927 | "endings:\n", partition + 1);
|
---|
1928 | printf(" phys=(%u, %u, %u) ", pec, peh, pes);
|
---|
1929 | printf("logical=(%u, %u, %u)\n", lec, leh, les);
|
---|
1930 | }
|
---|
1931 |
|
---|
1932 | /* Ending on cylinder boundary? */
|
---|
1933 | if (peh != (g_heads - 1) || pes != g_sectors) {
|
---|
1934 | printf("Partition %u does not end on cylinder boundary\n",
|
---|
1935 | partition + 1);
|
---|
1936 | }
|
---|
1937 | }
|
---|
1938 |
|
---|
1939 | static void
|
---|
1940 | list_disk_geometry(void)
|
---|
1941 | {
|
---|
1942 | ullong bytes = ((ullong)total_number_of_sectors << 9);
|
---|
1943 | long megabytes = bytes / 1000000;
|
---|
1944 |
|
---|
1945 | if (megabytes < 10000)
|
---|
1946 | printf("\nDisk %s: %lu MB, %llu bytes\n",
|
---|
1947 | disk_device, megabytes, bytes);
|
---|
1948 | else
|
---|
1949 | printf("\nDisk %s: %lu.%lu GB, %llu bytes\n",
|
---|
1950 | disk_device, megabytes/1000, (megabytes/100)%10, bytes);
|
---|
1951 | printf("%u heads, %u sectors/track, %u cylinders",
|
---|
1952 | g_heads, g_sectors, g_cylinders);
|
---|
1953 | if (units_per_sector == 1)
|
---|
1954 | printf(", total %"SECT_FMT"u sectors",
|
---|
1955 | total_number_of_sectors / (sector_size/512));
|
---|
1956 | printf("\nUnits = %s of %u * %u = %u bytes\n\n",
|
---|
1957 | str_units(PLURAL),
|
---|
1958 | units_per_sector, sector_size, units_per_sector * sector_size);
|
---|
1959 | }
|
---|
1960 |
|
---|
1961 | /*
|
---|
1962 | * Check whether partition entries are ordered by their starting positions.
|
---|
1963 | * Return 0 if OK. Return i if partition i should have been earlier.
|
---|
1964 | * Two separate checks: primary and logical partitions.
|
---|
1965 | */
|
---|
1966 | static int
|
---|
1967 | wrong_p_order(int *prev)
|
---|
1968 | {
|
---|
1969 | const struct pte *pe;
|
---|
1970 | const struct partition *p;
|
---|
1971 | sector_t last_p_start_pos = 0, p_start_pos;
|
---|
1972 | unsigned i, last_i = 0;
|
---|
1973 |
|
---|
1974 | for (i = 0; i < g_partitions; i++) {
|
---|
1975 | if (i == 4) {
|
---|
1976 | last_i = 4;
|
---|
1977 | last_p_start_pos = 0;
|
---|
1978 | }
|
---|
1979 | pe = &ptes[i];
|
---|
1980 | p = pe->part_table;
|
---|
1981 | if (p->sys_ind) {
|
---|
1982 | p_start_pos = get_partition_start_from_dev_start(pe);
|
---|
1983 |
|
---|
1984 | if (last_p_start_pos > p_start_pos) {
|
---|
1985 | if (prev)
|
---|
1986 | *prev = last_i;
|
---|
1987 | return i;
|
---|
1988 | }
|
---|
1989 |
|
---|
1990 | last_p_start_pos = p_start_pos;
|
---|
1991 | last_i = i;
|
---|
1992 | }
|
---|
1993 | }
|
---|
1994 | return 0;
|
---|
1995 | }
|
---|
1996 |
|
---|
1997 | #if ENABLE_FEATURE_FDISK_ADVANCED
|
---|
1998 | /*
|
---|
1999 | * Fix the chain of logicals.
|
---|
2000 | * extended_offset is unchanged, the set of sectors used is unchanged
|
---|
2001 | * The chain is sorted so that sectors increase, and so that
|
---|
2002 | * starting sectors increase.
|
---|
2003 | *
|
---|
2004 | * After this it may still be that cfdisk doesnt like the table.
|
---|
2005 | * (This is because cfdisk considers expanded parts, from link to
|
---|
2006 | * end of partition, and these may still overlap.)
|
---|
2007 | * Now
|
---|
2008 | * sfdisk /dev/hda > ohda; sfdisk /dev/hda < ohda
|
---|
2009 | * may help.
|
---|
2010 | */
|
---|
2011 | static void
|
---|
2012 | fix_chain_of_logicals(void)
|
---|
2013 | {
|
---|
2014 | int j, oj, ojj, sj, sjj;
|
---|
2015 | struct partition *pj,*pjj,tmp;
|
---|
2016 |
|
---|
2017 | /* Stage 1: sort sectors but leave sector of part 4 */
|
---|
2018 | /* (Its sector is the global extended_offset.) */
|
---|
2019 | stage1:
|
---|
2020 | for (j = 5; j < g_partitions - 1; j++) {
|
---|
2021 | oj = ptes[j].offset_from_dev_start;
|
---|
2022 | ojj = ptes[j+1].offset_from_dev_start;
|
---|
2023 | if (oj > ojj) {
|
---|
2024 | ptes[j].offset_from_dev_start = ojj;
|
---|
2025 | ptes[j+1].offset_from_dev_start = oj;
|
---|
2026 | pj = ptes[j].part_table;
|
---|
2027 | set_start_sect(pj, get_start_sect(pj)+oj-ojj);
|
---|
2028 | pjj = ptes[j+1].part_table;
|
---|
2029 | set_start_sect(pjj, get_start_sect(pjj)+ojj-oj);
|
---|
2030 | set_start_sect(ptes[j-1].ext_pointer,
|
---|
2031 | ojj-extended_offset);
|
---|
2032 | set_start_sect(ptes[j].ext_pointer,
|
---|
2033 | oj-extended_offset);
|
---|
2034 | goto stage1;
|
---|
2035 | }
|
---|
2036 | }
|
---|
2037 |
|
---|
2038 | /* Stage 2: sort starting sectors */
|
---|
2039 | stage2:
|
---|
2040 | for (j = 4; j < g_partitions - 1; j++) {
|
---|
2041 | pj = ptes[j].part_table;
|
---|
2042 | pjj = ptes[j+1].part_table;
|
---|
2043 | sj = get_start_sect(pj);
|
---|
2044 | sjj = get_start_sect(pjj);
|
---|
2045 | oj = ptes[j].offset_from_dev_start;
|
---|
2046 | ojj = ptes[j+1].offset_from_dev_start;
|
---|
2047 | if (oj+sj > ojj+sjj) {
|
---|
2048 | tmp = *pj;
|
---|
2049 | *pj = *pjj;
|
---|
2050 | *pjj = tmp;
|
---|
2051 | set_start_sect(pj, ojj+sjj-oj);
|
---|
2052 | set_start_sect(pjj, oj+sj-ojj);
|
---|
2053 | goto stage2;
|
---|
2054 | }
|
---|
2055 | }
|
---|
2056 |
|
---|
2057 | /* Probably something was changed */
|
---|
2058 | for (j = 4; j < g_partitions; j++)
|
---|
2059 | ptes[j].changed = 1;
|
---|
2060 | }
|
---|
2061 |
|
---|
2062 |
|
---|
2063 | static void
|
---|
2064 | fix_partition_table_order(void)
|
---|
2065 | {
|
---|
2066 | struct pte *pei, *pek;
|
---|
2067 | int i,k;
|
---|
2068 |
|
---|
2069 | if (!wrong_p_order(NULL)) {
|
---|
2070 | printf("Ordering is already correct\n\n");
|
---|
2071 | return;
|
---|
2072 | }
|
---|
2073 |
|
---|
2074 | while ((i = wrong_p_order(&k)) != 0 && i < 4) {
|
---|
2075 | /* partition i should have come earlier, move it */
|
---|
2076 | /* We have to move data in the MBR */
|
---|
2077 | struct partition *pi, *pk, *pe, pbuf;
|
---|
2078 | pei = &ptes[i];
|
---|
2079 | pek = &ptes[k];
|
---|
2080 |
|
---|
2081 | pe = pei->ext_pointer;
|
---|
2082 | pei->ext_pointer = pek->ext_pointer;
|
---|
2083 | pek->ext_pointer = pe;
|
---|
2084 |
|
---|
2085 | pi = pei->part_table;
|
---|
2086 | pk = pek->part_table;
|
---|
2087 |
|
---|
2088 | memmove(&pbuf, pi, sizeof(struct partition));
|
---|
2089 | memmove(pi, pk, sizeof(struct partition));
|
---|
2090 | memmove(pk, &pbuf, sizeof(struct partition));
|
---|
2091 |
|
---|
2092 | pei->changed = pek->changed = 1;
|
---|
2093 | }
|
---|
2094 |
|
---|
2095 | if (i)
|
---|
2096 | fix_chain_of_logicals();
|
---|
2097 |
|
---|
2098 | printf("Done.\n");
|
---|
2099 | }
|
---|
2100 | #endif
|
---|
2101 |
|
---|
2102 | static void
|
---|
2103 | list_table(int xtra)
|
---|
2104 | {
|
---|
2105 | const struct partition *p;
|
---|
2106 | int i, w;
|
---|
2107 |
|
---|
2108 | if (LABEL_IS_SUN) {
|
---|
2109 | sun_list_table(xtra);
|
---|
2110 | return;
|
---|
2111 | }
|
---|
2112 | if (LABEL_IS_SGI) {
|
---|
2113 | sgi_list_table(xtra);
|
---|
2114 | return;
|
---|
2115 | }
|
---|
2116 | if (LABEL_IS_GPT) {
|
---|
2117 | gpt_list_table(xtra);
|
---|
2118 | return;
|
---|
2119 | }
|
---|
2120 |
|
---|
2121 | list_disk_geometry();
|
---|
2122 |
|
---|
2123 | if (LABEL_IS_OSF) {
|
---|
2124 | xbsd_print_disklabel(xtra);
|
---|
2125 | return;
|
---|
2126 | }
|
---|
2127 |
|
---|
2128 | /* Heuristic: we list partition 3 of /dev/foo as /dev/foo3,
|
---|
2129 | but if the device name ends in a digit, say /dev/foo1,
|
---|
2130 | then the partition is called /dev/foo1p3. */
|
---|
2131 | w = strlen(disk_device);
|
---|
2132 | if (w && isdigit(disk_device[w-1]))
|
---|
2133 | w++;
|
---|
2134 | if (w < 5)
|
---|
2135 | w = 5;
|
---|
2136 |
|
---|
2137 | // 1 12345678901 12345678901 12345678901 12
|
---|
2138 | printf("%*s Boot Start End Blocks Id System\n",
|
---|
2139 | w+1, "Device");
|
---|
2140 |
|
---|
2141 | for (i = 0; i < g_partitions; i++) {
|
---|
2142 | const struct pte *pe = &ptes[i];
|
---|
2143 | sector_t psects;
|
---|
2144 | sector_t pblocks;
|
---|
2145 | unsigned podd;
|
---|
2146 |
|
---|
2147 | p = pe->part_table;
|
---|
2148 | if (!p || is_cleared_partition(p))
|
---|
2149 | continue;
|
---|
2150 |
|
---|
2151 | psects = get_nr_sects(p);
|
---|
2152 | pblocks = psects;
|
---|
2153 | podd = 0;
|
---|
2154 |
|
---|
2155 | if (sector_size < 1024) {
|
---|
2156 | pblocks /= (1024 / sector_size);
|
---|
2157 | podd = psects % (1024 / sector_size);
|
---|
2158 | }
|
---|
2159 | if (sector_size > 1024)
|
---|
2160 | pblocks *= (sector_size / 1024);
|
---|
2161 |
|
---|
2162 | printf("%s %c %11"SECT_FMT"u %11"SECT_FMT"u %11"SECT_FMT"u%c %2x %s\n",
|
---|
2163 | partname(disk_device, i+1, w+2),
|
---|
2164 | !p->boot_ind ? ' ' : p->boot_ind == ACTIVE_FLAG /* boot flag */
|
---|
2165 | ? '*' : '?',
|
---|
2166 | cround(get_partition_start_from_dev_start(pe)), /* start */
|
---|
2167 | cround(get_partition_start_from_dev_start(pe) + psects /* end */
|
---|
2168 | - (psects ? 1 : 0)),
|
---|
2169 | pblocks, podd ? '+' : ' ', /* odd flag on end */
|
---|
2170 | p->sys_ind, /* type id */
|
---|
2171 | partition_type(p->sys_ind)); /* type name */
|
---|
2172 |
|
---|
2173 | check_consistency(p, i);
|
---|
2174 | }
|
---|
2175 |
|
---|
2176 | /* Is partition table in disk order? It need not be, but... */
|
---|
2177 | /* partition table entries are not checked for correct order
|
---|
2178 | * if this is a sgi, sun or aix labeled disk... */
|
---|
2179 | if (LABEL_IS_DOS && wrong_p_order(NULL)) {
|
---|
2180 | /* FIXME */
|
---|
2181 | printf("\nPartition table entries are not in disk order\n");
|
---|
2182 | }
|
---|
2183 | }
|
---|
2184 |
|
---|
2185 | #if ENABLE_FEATURE_FDISK_ADVANCED
|
---|
2186 | static void
|
---|
2187 | x_list_table(int extend)
|
---|
2188 | {
|
---|
2189 | const struct pte *pe;
|
---|
2190 | const struct partition *p;
|
---|
2191 | int i;
|
---|
2192 |
|
---|
2193 | printf("\nDisk %s: %u heads, %u sectors, %u cylinders\n\n",
|
---|
2194 | disk_device, g_heads, g_sectors, g_cylinders);
|
---|
2195 | printf("Nr AF Hd Sec Cyl Hd Sec Cyl Start Size ID\n");
|
---|
2196 | for (i = 0; i < g_partitions; i++) {
|
---|
2197 | pe = &ptes[i];
|
---|
2198 | p = (extend ? pe->ext_pointer : pe->part_table);
|
---|
2199 | if (p != NULL) {
|
---|
2200 | printf("%2u %02x%4u%4u%5u%4u%4u%5u%11"SECT_FMT"u%11"SECT_FMT"u %02x\n",
|
---|
2201 | i + 1, p->boot_ind, p->head,
|
---|
2202 | sector(p->sector),
|
---|
2203 | cylinder(p->sector, p->cyl), p->end_head,
|
---|
2204 | sector(p->end_sector),
|
---|
2205 | cylinder(p->end_sector, p->end_cyl),
|
---|
2206 | get_start_sect(p), get_nr_sects(p),
|
---|
2207 | p->sys_ind);
|
---|
2208 | if (p->sys_ind)
|
---|
2209 | check_consistency(p, i);
|
---|
2210 | }
|
---|
2211 | }
|
---|
2212 | }
|
---|
2213 | #endif
|
---|
2214 |
|
---|
2215 | #if ENABLE_FEATURE_FDISK_WRITABLE
|
---|
2216 | static void
|
---|
2217 | fill_bounds(sector_t *first, sector_t *last)
|
---|
2218 | {
|
---|
2219 | unsigned i;
|
---|
2220 | const struct pte *pe = &ptes[0];
|
---|
2221 | const struct partition *p;
|
---|
2222 |
|
---|
2223 | for (i = 0; i < g_partitions; pe++,i++) {
|
---|
2224 | p = pe->part_table;
|
---|
2225 | if (!p->sys_ind || IS_EXTENDED(p->sys_ind)) {
|
---|
2226 | first[i] = 0xffffffff;
|
---|
2227 | last[i] = 0;
|
---|
2228 | } else {
|
---|
2229 | first[i] = get_partition_start_from_dev_start(pe);
|
---|
2230 | last[i] = first[i] + get_nr_sects(p) - 1;
|
---|
2231 | }
|
---|
2232 | }
|
---|
2233 | }
|
---|
2234 |
|
---|
2235 | static void
|
---|
2236 | check(int n, unsigned h, unsigned s, unsigned c, sector_t start)
|
---|
2237 | {
|
---|
2238 | sector_t total, real_s, real_c;
|
---|
2239 |
|
---|
2240 | real_s = sector(s) - 1;
|
---|
2241 | real_c = cylinder(s, c);
|
---|
2242 | total = (real_c * g_sectors + real_s) * g_heads + h;
|
---|
2243 | if (!total)
|
---|
2244 | printf("Partition %u contains sector 0\n", n);
|
---|
2245 | if (h >= g_heads)
|
---|
2246 | printf("Partition %u: head %u greater than maximum %u\n",
|
---|
2247 | n, h + 1, g_heads);
|
---|
2248 | if (real_s >= g_sectors)
|
---|
2249 | printf("Partition %u: sector %u greater than "
|
---|
2250 | "maximum %u\n", n, s, g_sectors);
|
---|
2251 | if (real_c >= g_cylinders)
|
---|
2252 | printf("Partition %u: cylinder %"SECT_FMT"u greater than "
|
---|
2253 | "maximum %u\n", n, real_c + 1, g_cylinders);
|
---|
2254 | if (g_cylinders <= 1024 && start != total)
|
---|
2255 | printf("Partition %u: previous sectors %"SECT_FMT"u disagrees with "
|
---|
2256 | "total %"SECT_FMT"u\n", n, start, total);
|
---|
2257 | }
|
---|
2258 |
|
---|
2259 | static void
|
---|
2260 | verify(void)
|
---|
2261 | {
|
---|
2262 | int i, j;
|
---|
2263 | sector_t total = 1;
|
---|
2264 | sector_t first[g_partitions], last[g_partitions];
|
---|
2265 | struct partition *p;
|
---|
2266 |
|
---|
2267 | if (warn_geometry())
|
---|
2268 | return;
|
---|
2269 |
|
---|
2270 | if (LABEL_IS_SUN) {
|
---|
2271 | verify_sun();
|
---|
2272 | return;
|
---|
2273 | }
|
---|
2274 | if (LABEL_IS_SGI) {
|
---|
2275 | verify_sgi(1);
|
---|
2276 | return;
|
---|
2277 | }
|
---|
2278 |
|
---|
2279 | fill_bounds(first, last);
|
---|
2280 | for (i = 0; i < g_partitions; i++) {
|
---|
2281 | struct pte *pe = &ptes[i];
|
---|
2282 |
|
---|
2283 | p = pe->part_table;
|
---|
2284 | if (p->sys_ind && !IS_EXTENDED(p->sys_ind)) {
|
---|
2285 | check_consistency(p, i);
|
---|
2286 | if (get_partition_start_from_dev_start(pe) < first[i])
|
---|
2287 | printf("Warning: bad start-of-data in "
|
---|
2288 | "partition %u\n", i + 1);
|
---|
2289 | check(i + 1, p->end_head, p->end_sector, p->end_cyl,
|
---|
2290 | last[i]);
|
---|
2291 | total += last[i] + 1 - first[i];
|
---|
2292 | for (j = 0; j < i; j++) {
|
---|
2293 | if ((first[i] >= first[j] && first[i] <= last[j])
|
---|
2294 | || ((last[i] <= last[j] && last[i] >= first[j]))) {
|
---|
2295 | printf("Warning: partition %u overlaps "
|
---|
2296 | "partition %u\n", j + 1, i + 1);
|
---|
2297 | total += first[i] >= first[j] ?
|
---|
2298 | first[i] : first[j];
|
---|
2299 | total -= last[i] <= last[j] ?
|
---|
2300 | last[i] : last[j];
|
---|
2301 | }
|
---|
2302 | }
|
---|
2303 | }
|
---|
2304 | }
|
---|
2305 |
|
---|
2306 | if (extended_offset) {
|
---|
2307 | struct pte *pex = &ptes[ext_index];
|
---|
2308 | sector_t e_last = get_start_sect(pex->part_table) +
|
---|
2309 | get_nr_sects(pex->part_table) - 1;
|
---|
2310 |
|
---|
2311 | for (i = 4; i < g_partitions; i++) {
|
---|
2312 | total++;
|
---|
2313 | p = ptes[i].part_table;
|
---|
2314 | if (!p->sys_ind) {
|
---|
2315 | if (i != 4 || i + 1 < g_partitions)
|
---|
2316 | printf("Warning: partition %u "
|
---|
2317 | "is empty\n", i + 1);
|
---|
2318 | } else if (first[i] < extended_offset || last[i] > e_last) {
|
---|
2319 | printf("Logical partition %u not entirely in "
|
---|
2320 | "partition %u\n", i + 1, ext_index + 1);
|
---|
2321 | }
|
---|
2322 | }
|
---|
2323 | }
|
---|
2324 |
|
---|
2325 | if (total > g_heads * g_sectors * g_cylinders)
|
---|
2326 | printf("Total allocated sectors %u greater than the maximum "
|
---|
2327 | "%u\n", total, g_heads * g_sectors * g_cylinders);
|
---|
2328 | else {
|
---|
2329 | total = g_heads * g_sectors * g_cylinders - total;
|
---|
2330 | if (total != 0)
|
---|
2331 | printf("%"SECT_FMT"u unallocated sectors\n", total);
|
---|
2332 | }
|
---|
2333 | }
|
---|
2334 |
|
---|
2335 | static void
|
---|
2336 | add_partition(int n, int sys)
|
---|
2337 | {
|
---|
2338 | char mesg[256]; /* 48 does not suffice in Japanese */
|
---|
2339 | int i, num_read = 0;
|
---|
2340 | struct partition *p = ptes[n].part_table;
|
---|
2341 | struct partition *q = ptes[ext_index].part_table;
|
---|
2342 | sector_t limit, temp;
|
---|
2343 | sector_t start, stop = 0;
|
---|
2344 | sector_t first[g_partitions], last[g_partitions];
|
---|
2345 |
|
---|
2346 | if (p && p->sys_ind) {
|
---|
2347 | printf(msg_part_already_defined, n + 1);
|
---|
2348 | return;
|
---|
2349 | }
|
---|
2350 | fill_bounds(first, last);
|
---|
2351 | if (n < 4) {
|
---|
2352 | start = sector_offset;
|
---|
2353 | if (display_in_cyl_units || !total_number_of_sectors)
|
---|
2354 | limit = (sector_t) g_heads * g_sectors * g_cylinders - 1;
|
---|
2355 | else
|
---|
2356 | limit = total_number_of_sectors - 1;
|
---|
2357 | if (extended_offset) {
|
---|
2358 | first[ext_index] = extended_offset;
|
---|
2359 | last[ext_index] = get_start_sect(q) +
|
---|
2360 | get_nr_sects(q) - 1;
|
---|
2361 | }
|
---|
2362 | } else {
|
---|
2363 | start = extended_offset + sector_offset;
|
---|
2364 | limit = get_start_sect(q) + get_nr_sects(q) - 1;
|
---|
2365 | }
|
---|
2366 | if (display_in_cyl_units)
|
---|
2367 | for (i = 0; i < g_partitions; i++)
|
---|
2368 | first[i] = (cround(first[i]) - 1) * units_per_sector;
|
---|
2369 |
|
---|
2370 | snprintf(mesg, sizeof(mesg), "First %s", str_units(SINGULAR));
|
---|
2371 | do {
|
---|
2372 | temp = start;
|
---|
2373 | for (i = 0; i < g_partitions; i++) {
|
---|
2374 | int lastplusoff;
|
---|
2375 |
|
---|
2376 | if (start == ptes[i].offset_from_dev_start)
|
---|
2377 | start += sector_offset;
|
---|
2378 | lastplusoff = last[i] + ((n < 4) ? 0 : sector_offset);
|
---|
2379 | if (start >= first[i] && start <= lastplusoff)
|
---|
2380 | start = lastplusoff + 1;
|
---|
2381 | }
|
---|
2382 | if (start > limit)
|
---|
2383 | break;
|
---|
2384 | if (start >= temp+units_per_sector && num_read) {
|
---|
2385 | printf("Sector %"SECT_FMT"u is already allocated\n", temp);
|
---|
2386 | temp = start;
|
---|
2387 | num_read = 0;
|
---|
2388 | }
|
---|
2389 | if (!num_read && start == temp) {
|
---|
2390 | sector_t saved_start;
|
---|
2391 |
|
---|
2392 | saved_start = start;
|
---|
2393 | start = read_int(cround(saved_start), cround(saved_start), cround(limit), 0, mesg);
|
---|
2394 | if (display_in_cyl_units) {
|
---|
2395 | start = (start - 1) * units_per_sector;
|
---|
2396 | if (start < saved_start)
|
---|
2397 | start = saved_start;
|
---|
2398 | }
|
---|
2399 | num_read = 1;
|
---|
2400 | }
|
---|
2401 | } while (start != temp || !num_read);
|
---|
2402 | if (n > 4) { /* NOT for fifth partition */
|
---|
2403 | struct pte *pe = &ptes[n];
|
---|
2404 |
|
---|
2405 | pe->offset_from_dev_start = start - sector_offset;
|
---|
2406 | if (pe->offset_from_dev_start == extended_offset) { /* must be corrected */
|
---|
2407 | pe->offset_from_dev_start++;
|
---|
2408 | if (sector_offset == 1)
|
---|
2409 | start++;
|
---|
2410 | }
|
---|
2411 | }
|
---|
2412 |
|
---|
2413 | for (i = 0; i < g_partitions; i++) {
|
---|
2414 | struct pte *pe = &ptes[i];
|
---|
2415 |
|
---|
2416 | if (start < pe->offset_from_dev_start && limit >= pe->offset_from_dev_start)
|
---|
2417 | limit = pe->offset_from_dev_start - 1;
|
---|
2418 | if (start < first[i] && limit >= first[i])
|
---|
2419 | limit = first[i] - 1;
|
---|
2420 | }
|
---|
2421 | if (start > limit) {
|
---|
2422 | printf("No free sectors available\n");
|
---|
2423 | if (n > 4)
|
---|
2424 | g_partitions--;
|
---|
2425 | return;
|
---|
2426 | }
|
---|
2427 | if (cround(start) == cround(limit)) {
|
---|
2428 | stop = limit;
|
---|
2429 | } else {
|
---|
2430 | snprintf(mesg, sizeof(mesg),
|
---|
2431 | "Last %s or +size or +sizeM or +sizeK",
|
---|
2432 | str_units(SINGULAR));
|
---|
2433 | stop = read_int(cround(start), cround(limit), cround(limit), cround(start), mesg);
|
---|
2434 | if (display_in_cyl_units) {
|
---|
2435 | stop = stop * units_per_sector - 1;
|
---|
2436 | if (stop >limit)
|
---|
2437 | stop = limit;
|
---|
2438 | }
|
---|
2439 | }
|
---|
2440 |
|
---|
2441 | set_partition(n, 0, start, stop, sys);
|
---|
2442 | if (n > 4)
|
---|
2443 | set_partition(n - 1, 1, ptes[n].offset_from_dev_start, stop, EXTENDED);
|
---|
2444 |
|
---|
2445 | if (IS_EXTENDED(sys)) {
|
---|
2446 | struct pte *pe4 = &ptes[4];
|
---|
2447 | struct pte *pen = &ptes[n];
|
---|
2448 |
|
---|
2449 | ext_index = n;
|
---|
2450 | pen->ext_pointer = p;
|
---|
2451 | pe4->offset_from_dev_start = extended_offset = start;
|
---|
2452 | pe4->sectorbuffer = xzalloc(sector_size);
|
---|
2453 | pe4->part_table = pt_offset(pe4->sectorbuffer, 0);
|
---|
2454 | pe4->ext_pointer = pe4->part_table + 1;
|
---|
2455 | pe4->changed = 1;
|
---|
2456 | g_partitions = 5;
|
---|
2457 | }
|
---|
2458 | }
|
---|
2459 |
|
---|
2460 | static void
|
---|
2461 | add_logical(void)
|
---|
2462 | {
|
---|
2463 | if (g_partitions > 5 || ptes[4].part_table->sys_ind) {
|
---|
2464 | struct pte *pe = &ptes[g_partitions];
|
---|
2465 |
|
---|
2466 | pe->sectorbuffer = xzalloc(sector_size);
|
---|
2467 | pe->part_table = pt_offset(pe->sectorbuffer, 0);
|
---|
2468 | pe->ext_pointer = pe->part_table + 1;
|
---|
2469 | pe->offset_from_dev_start = 0;
|
---|
2470 | pe->changed = 1;
|
---|
2471 | g_partitions++;
|
---|
2472 | }
|
---|
2473 | add_partition(g_partitions - 1, LINUX_NATIVE);
|
---|
2474 | }
|
---|
2475 |
|
---|
2476 | static void
|
---|
2477 | new_partition(void)
|
---|
2478 | {
|
---|
2479 | int i, free_primary = 0;
|
---|
2480 |
|
---|
2481 | if (warn_geometry())
|
---|
2482 | return;
|
---|
2483 |
|
---|
2484 | if (LABEL_IS_SUN) {
|
---|
2485 | add_sun_partition(get_partition(0, g_partitions), LINUX_NATIVE);
|
---|
2486 | return;
|
---|
2487 | }
|
---|
2488 | if (LABEL_IS_SGI) {
|
---|
2489 | sgi_add_partition(get_partition(0, g_partitions), LINUX_NATIVE);
|
---|
2490 | return;
|
---|
2491 | }
|
---|
2492 | if (LABEL_IS_AIX) {
|
---|
2493 | printf("Sorry - this fdisk cannot handle AIX disk labels.\n"
|
---|
2494 | "If you want to add DOS-type partitions, create a new empty DOS partition\n"
|
---|
2495 | "table first (use 'o'). This will destroy the present disk contents.\n");
|
---|
2496 | return;
|
---|
2497 | }
|
---|
2498 |
|
---|
2499 | for (i = 0; i < 4; i++)
|
---|
2500 | free_primary += !ptes[i].part_table->sys_ind;
|
---|
2501 |
|
---|
2502 | if (!free_primary && g_partitions >= MAXIMUM_PARTS) {
|
---|
2503 | printf("The maximum number of partitions has been created\n");
|
---|
2504 | return;
|
---|
2505 | }
|
---|
2506 |
|
---|
2507 | if (!free_primary) {
|
---|
2508 | if (extended_offset)
|
---|
2509 | add_logical();
|
---|
2510 | else
|
---|
2511 | printf("You must delete some partition and add "
|
---|
2512 | "an extended partition first\n");
|
---|
2513 | } else {
|
---|
2514 | char c, line[80];
|
---|
2515 | snprintf(line, sizeof(line),
|
---|
2516 | "Command action\n"
|
---|
2517 | " %s\n"
|
---|
2518 | " p primary partition (1-4)\n",
|
---|
2519 | (extended_offset ?
|
---|
2520 | "l logical (5 or over)" : "e extended"));
|
---|
2521 | while (1) {
|
---|
2522 | c = read_nonempty(line);
|
---|
2523 | if ((c | 0x20) == 'p') {
|
---|
2524 | i = get_nonexisting_partition(0, 4);
|
---|
2525 | if (i >= 0)
|
---|
2526 | add_partition(i, LINUX_NATIVE);
|
---|
2527 | return;
|
---|
2528 | }
|
---|
2529 | if (c == 'l' && extended_offset) {
|
---|
2530 | add_logical();
|
---|
2531 | return;
|
---|
2532 | }
|
---|
2533 | if (c == 'e' && !extended_offset) {
|
---|
2534 | i = get_nonexisting_partition(0, 4);
|
---|
2535 | if (i >= 0)
|
---|
2536 | add_partition(i, EXTENDED);
|
---|
2537 | return;
|
---|
2538 | }
|
---|
2539 | printf("Invalid partition number "
|
---|
2540 | "for type '%c'\n", c);
|
---|
2541 | }
|
---|
2542 | }
|
---|
2543 | }
|
---|
2544 |
|
---|
2545 | static void
|
---|
2546 | reread_partition_table(int leave)
|
---|
2547 | {
|
---|
2548 | int i;
|
---|
2549 |
|
---|
2550 | printf("Calling ioctl() to re-read partition table\n");
|
---|
2551 | sync();
|
---|
2552 | /* Users with slow external USB disks on a 320MHz ARM system (year 2011)
|
---|
2553 | * report that sleep is needed, otherwise BLKRRPART may fail with -EIO:
|
---|
2554 | */
|
---|
2555 | sleep(1);
|
---|
2556 | i = ioctl_or_perror(dev_fd, BLKRRPART, NULL,
|
---|
2557 | "WARNING: rereading partition table "
|
---|
2558 | "failed, kernel still uses old table");
|
---|
2559 | #if 0
|
---|
2560 | if (dos_changed)
|
---|
2561 | printf(
|
---|
2562 | "\nWARNING: If you have created or modified any DOS 6.x\n"
|
---|
2563 | "partitions, please see the fdisk manual page for additional\n"
|
---|
2564 | "information\n");
|
---|
2565 | #endif
|
---|
2566 |
|
---|
2567 | if (leave) {
|
---|
2568 | if (ENABLE_FEATURE_CLEAN_UP)
|
---|
2569 | close_dev_fd();
|
---|
2570 | exit(i != 0);
|
---|
2571 | }
|
---|
2572 | }
|
---|
2573 |
|
---|
2574 | static void
|
---|
2575 | write_table(void)
|
---|
2576 | {
|
---|
2577 | int i;
|
---|
2578 |
|
---|
2579 | if (LABEL_IS_DOS) {
|
---|
2580 | for (i = 0; i < 3; i++)
|
---|
2581 | if (ptes[i].changed)
|
---|
2582 | ptes[3].changed = 1;
|
---|
2583 | for (i = 3; i < g_partitions; i++) {
|
---|
2584 | struct pte *pe = &ptes[i];
|
---|
2585 | if (pe->changed) {
|
---|
2586 | write_part_table_flag(pe->sectorbuffer);
|
---|
2587 | write_sector(pe->offset_from_dev_start, pe->sectorbuffer);
|
---|
2588 | }
|
---|
2589 | }
|
---|
2590 | }
|
---|
2591 | else if (LABEL_IS_SGI) {
|
---|
2592 | /* no test on change? the printf below might be mistaken */
|
---|
2593 | sgi_write_table();
|
---|
2594 | }
|
---|
2595 | else if (LABEL_IS_SUN) {
|
---|
2596 | for (i = 0; i < 8; i++) {
|
---|
2597 | if (ptes[i].changed) {
|
---|
2598 | sun_write_table();
|
---|
2599 | break;
|
---|
2600 | }
|
---|
2601 | }
|
---|
2602 | }
|
---|
2603 |
|
---|
2604 | printf("The partition table has been altered.\n");
|
---|
2605 | reread_partition_table(1);
|
---|
2606 | }
|
---|
2607 | #endif /* FEATURE_FDISK_WRITABLE */
|
---|
2608 |
|
---|
2609 | #if ENABLE_FEATURE_FDISK_ADVANCED
|
---|
2610 | #define MAX_PER_LINE 16
|
---|
2611 | static void
|
---|
2612 | print_buffer(char *pbuffer)
|
---|
2613 | {
|
---|
2614 | int i,l;
|
---|
2615 |
|
---|
2616 | for (i = 0, l = 0; i < sector_size; i++, l++) {
|
---|
2617 | if (l == 0)
|
---|
2618 | printf("0x%03X:", i);
|
---|
2619 | printf(" %02X", (unsigned char) pbuffer[i]);
|
---|
2620 | if (l == MAX_PER_LINE - 1) {
|
---|
2621 | bb_putchar('\n');
|
---|
2622 | l = -1;
|
---|
2623 | }
|
---|
2624 | }
|
---|
2625 | if (l > 0)
|
---|
2626 | bb_putchar('\n');
|
---|
2627 | bb_putchar('\n');
|
---|
2628 | }
|
---|
2629 |
|
---|
2630 | static void
|
---|
2631 | print_raw(void)
|
---|
2632 | {
|
---|
2633 | int i;
|
---|
2634 |
|
---|
2635 | printf("Device: %s\n", disk_device);
|
---|
2636 | if (LABEL_IS_SGI || LABEL_IS_SUN)
|
---|
2637 | print_buffer(MBRbuffer);
|
---|
2638 | else {
|
---|
2639 | for (i = 3; i < g_partitions; i++)
|
---|
2640 | print_buffer(ptes[i].sectorbuffer);
|
---|
2641 | }
|
---|
2642 | }
|
---|
2643 |
|
---|
2644 | static void
|
---|
2645 | move_begin(unsigned i)
|
---|
2646 | {
|
---|
2647 | struct pte *pe = &ptes[i];
|
---|
2648 | struct partition *p = pe->part_table;
|
---|
2649 | sector_t new, first, nr_sects;
|
---|
2650 |
|
---|
2651 | if (warn_geometry())
|
---|
2652 | return;
|
---|
2653 | nr_sects = get_nr_sects(p);
|
---|
2654 | if (!p->sys_ind || !nr_sects || IS_EXTENDED(p->sys_ind)) {
|
---|
2655 | printf("Partition %u has no data area\n", i + 1);
|
---|
2656 | return;
|
---|
2657 | }
|
---|
2658 | first = get_partition_start_from_dev_start(pe); /* == pe->offset_from_dev_start + get_start_sect(p) */
|
---|
2659 | new = read_int(0 /*was:first*/, first, first + nr_sects - 1, first, "New beginning of data");
|
---|
2660 | if (new != first) {
|
---|
2661 | sector_t new_relative = new - pe->offset_from_dev_start;
|
---|
2662 | nr_sects += (get_start_sect(p) - new_relative);
|
---|
2663 | set_start_sect(p, new_relative);
|
---|
2664 | set_nr_sects(p, nr_sects);
|
---|
2665 | read_nonempty("Recalculate C/H/S values? (Y/N): ");
|
---|
2666 | if ((line_ptr[0] | 0x20) == 'y')
|
---|
2667 | set_hsc_start_end(p, new, new + nr_sects - 1);
|
---|
2668 | pe->changed = 1;
|
---|
2669 | }
|
---|
2670 | }
|
---|
2671 |
|
---|
2672 | static void
|
---|
2673 | xselect(void)
|
---|
2674 | {
|
---|
2675 | char c;
|
---|
2676 |
|
---|
2677 | while (1) {
|
---|
2678 | bb_putchar('\n');
|
---|
2679 | c = 0x20 | read_nonempty("Expert command (m for help): ");
|
---|
2680 | switch (c) {
|
---|
2681 | case 'a':
|
---|
2682 | if (LABEL_IS_SUN)
|
---|
2683 | sun_set_alt_cyl();
|
---|
2684 | break;
|
---|
2685 | case 'b':
|
---|
2686 | if (LABEL_IS_DOS)
|
---|
2687 | move_begin(get_partition(0, g_partitions));
|
---|
2688 | break;
|
---|
2689 | case 'c':
|
---|
2690 | user_cylinders = g_cylinders =
|
---|
2691 | read_int(1, g_cylinders, 1048576, 0,
|
---|
2692 | "Number of cylinders");
|
---|
2693 | if (LABEL_IS_SUN)
|
---|
2694 | sun_set_ncyl(g_cylinders);
|
---|
2695 | if (LABEL_IS_DOS)
|
---|
2696 | warn_cylinders();
|
---|
2697 | break;
|
---|
2698 | case 'd':
|
---|
2699 | print_raw();
|
---|
2700 | break;
|
---|
2701 | case 'e':
|
---|
2702 | if (LABEL_IS_SGI)
|
---|
2703 | sgi_set_xcyl();
|
---|
2704 | else if (LABEL_IS_SUN)
|
---|
2705 | sun_set_xcyl();
|
---|
2706 | else if (LABEL_IS_DOS)
|
---|
2707 | x_list_table(1);
|
---|
2708 | break;
|
---|
2709 | case 'f':
|
---|
2710 | if (LABEL_IS_DOS)
|
---|
2711 | fix_partition_table_order();
|
---|
2712 | break;
|
---|
2713 | case 'g':
|
---|
2714 | #if ENABLE_FEATURE_SGI_LABEL
|
---|
2715 | create_sgilabel();
|
---|
2716 | #endif
|
---|
2717 | break;
|
---|
2718 | case 'h':
|
---|
2719 | user_heads = g_heads = read_int(1, g_heads, 256, 0, "Number of heads");
|
---|
2720 | update_units();
|
---|
2721 | break;
|
---|
2722 | case 'i':
|
---|
2723 | if (LABEL_IS_SUN)
|
---|
2724 | sun_set_ilfact();
|
---|
2725 | break;
|
---|
2726 | case 'o':
|
---|
2727 | if (LABEL_IS_SUN)
|
---|
2728 | sun_set_rspeed();
|
---|
2729 | break;
|
---|
2730 | case 'p':
|
---|
2731 | if (LABEL_IS_SUN)
|
---|
2732 | list_table(1);
|
---|
2733 | else
|
---|
2734 | x_list_table(0);
|
---|
2735 | break;
|
---|
2736 | case 'q':
|
---|
2737 | if (ENABLE_FEATURE_CLEAN_UP)
|
---|
2738 | close_dev_fd();
|
---|
2739 | bb_putchar('\n');
|
---|
2740 | exit(EXIT_SUCCESS);
|
---|
2741 | case 'r':
|
---|
2742 | return;
|
---|
2743 | case 's':
|
---|
2744 | user_sectors = g_sectors = read_int(1, g_sectors, 63, 0, "Number of sectors");
|
---|
2745 | if (dos_compatible_flag) {
|
---|
2746 | sector_offset = g_sectors;
|
---|
2747 | printf("Warning: setting sector offset for DOS "
|
---|
2748 | "compatiblity\n");
|
---|
2749 | }
|
---|
2750 | update_units();
|
---|
2751 | break;
|
---|
2752 | case 'v':
|
---|
2753 | verify();
|
---|
2754 | break;
|
---|
2755 | case 'w':
|
---|
2756 | write_table(); /* does not return */
|
---|
2757 | break;
|
---|
2758 | case 'y':
|
---|
2759 | if (LABEL_IS_SUN)
|
---|
2760 | sun_set_pcylcount();
|
---|
2761 | break;
|
---|
2762 | default:
|
---|
2763 | xmenu();
|
---|
2764 | }
|
---|
2765 | }
|
---|
2766 | }
|
---|
2767 | #endif /* ADVANCED mode */
|
---|
2768 |
|
---|
2769 | static int
|
---|
2770 | is_ide_cdrom_or_tape(const char *device)
|
---|
2771 | {
|
---|
2772 | FILE *procf;
|
---|
2773 | char buf[100];
|
---|
2774 | struct stat statbuf;
|
---|
2775 | int is_ide = 0;
|
---|
2776 |
|
---|
2777 | /* No device was given explicitly, and we are trying some
|
---|
2778 | likely things. But opening /dev/hdc may produce errors like
|
---|
2779 | "hdc: tray open or drive not ready"
|
---|
2780 | if it happens to be a CD-ROM drive. It even happens that
|
---|
2781 | the process hangs on the attempt to read a music CD.
|
---|
2782 | So try to be careful. This only works since 2.1.73. */
|
---|
2783 |
|
---|
2784 | if (strncmp("/dev/hd", device, 7))
|
---|
2785 | return 0;
|
---|
2786 |
|
---|
2787 | snprintf(buf, sizeof(buf), "/proc/ide/%s/media", device+5);
|
---|
2788 | procf = fopen_for_read(buf);
|
---|
2789 | if (procf != NULL && fgets(buf, sizeof(buf), procf))
|
---|
2790 | is_ide = (!strncmp(buf, "cdrom", 5) ||
|
---|
2791 | !strncmp(buf, "tape", 4));
|
---|
2792 | else
|
---|
2793 | /* Now when this proc file does not exist, skip the
|
---|
2794 | device when it is read-only. */
|
---|
2795 | if (stat(device, &statbuf) == 0)
|
---|
2796 | is_ide = ((statbuf.st_mode & 0222) == 0);
|
---|
2797 |
|
---|
2798 | if (procf)
|
---|
2799 | fclose(procf);
|
---|
2800 | return is_ide;
|
---|
2801 | }
|
---|
2802 |
|
---|
2803 |
|
---|
2804 | static void
|
---|
2805 | open_list_and_close(const char *device, int user_specified)
|
---|
2806 | {
|
---|
2807 | int gb;
|
---|
2808 |
|
---|
2809 | disk_device = device;
|
---|
2810 | if (setjmp(listingbuf))
|
---|
2811 | return;
|
---|
2812 | if (!user_specified)
|
---|
2813 | if (is_ide_cdrom_or_tape(device))
|
---|
2814 | return;
|
---|
2815 |
|
---|
2816 | /* Open disk_device, save file descriptor to dev_fd */
|
---|
2817 | errno = 0;
|
---|
2818 | gb = get_boot(TRY_ONLY);
|
---|
2819 | if (gb > 0) { /* I/O error */
|
---|
2820 | /* Ignore other errors, since we try IDE
|
---|
2821 | and SCSI hard disks which may not be
|
---|
2822 | installed on the system. */
|
---|
2823 | if (user_specified || errno == EACCES)
|
---|
2824 | bb_perror_msg("can't open '%s'", device);
|
---|
2825 | return;
|
---|
2826 | }
|
---|
2827 |
|
---|
2828 | if (gb < 0) { /* no DOS signature */
|
---|
2829 | list_disk_geometry();
|
---|
2830 | if (LABEL_IS_AIX)
|
---|
2831 | goto ret;
|
---|
2832 | #if ENABLE_FEATURE_OSF_LABEL
|
---|
2833 | if (bsd_trydev(device) < 0)
|
---|
2834 | #endif
|
---|
2835 | printf("Disk %s doesn't contain a valid "
|
---|
2836 | "partition table\n", device);
|
---|
2837 | } else {
|
---|
2838 | list_table(0);
|
---|
2839 | #if ENABLE_FEATURE_FDISK_WRITABLE
|
---|
2840 | if (!LABEL_IS_SUN && g_partitions > 4) {
|
---|
2841 | delete_partition(ext_index);
|
---|
2842 | }
|
---|
2843 | #endif
|
---|
2844 | }
|
---|
2845 | ret:
|
---|
2846 | close_dev_fd();
|
---|
2847 | }
|
---|
2848 |
|
---|
2849 | /* Is it a whole disk? The digit check is still useful
|
---|
2850 | for Xen devices for example. */
|
---|
2851 | static int is_whole_disk(const char *disk)
|
---|
2852 | {
|
---|
2853 | unsigned len;
|
---|
2854 | int fd = open(disk, O_RDONLY);
|
---|
2855 |
|
---|
2856 | if (fd != -1) {
|
---|
2857 | struct hd_geometry geometry;
|
---|
2858 | int err = ioctl(fd, HDIO_GETGEO, &geometry);
|
---|
2859 | close(fd);
|
---|
2860 | if (!err)
|
---|
2861 | return (geometry.start == 0);
|
---|
2862 | }
|
---|
2863 |
|
---|
2864 | /* Treat "nameN" as a partition name, not whole disk */
|
---|
2865 | /* note: mmcblk0 should work from the geometry check above */
|
---|
2866 | len = strlen(disk);
|
---|
2867 | if (len != 0 && isdigit(disk[len - 1]))
|
---|
2868 | return 0;
|
---|
2869 |
|
---|
2870 | return 1;
|
---|
2871 | }
|
---|
2872 |
|
---|
2873 | /* for fdisk -l: try all things in /proc/partitions
|
---|
2874 | that look like a partition name (do not end in a digit) */
|
---|
2875 | static void
|
---|
2876 | list_devs_in_proc_partititons(void)
|
---|
2877 | {
|
---|
2878 | FILE *procpt;
|
---|
2879 | char line[100], ptname[100], devname[120];
|
---|
2880 | int ma, mi, sz;
|
---|
2881 |
|
---|
2882 | procpt = fopen_or_warn("/proc/partitions", "r");
|
---|
2883 |
|
---|
2884 | while (fgets(line, sizeof(line), procpt)) {
|
---|
2885 | if (sscanf(line, " %u %u %u %[^\n ]",
|
---|
2886 | &ma, &mi, &sz, ptname) != 4)
|
---|
2887 | continue;
|
---|
2888 |
|
---|
2889 | sprintf(devname, "/dev/%s", ptname);
|
---|
2890 | if (is_whole_disk(devname))
|
---|
2891 | open_list_and_close(devname, 0);
|
---|
2892 | }
|
---|
2893 | #if ENABLE_FEATURE_CLEAN_UP
|
---|
2894 | fclose(procpt);
|
---|
2895 | #endif
|
---|
2896 | }
|
---|
2897 |
|
---|
2898 | #if ENABLE_FEATURE_FDISK_WRITABLE
|
---|
2899 | static void
|
---|
2900 | unknown_command(int c)
|
---|
2901 | {
|
---|
2902 | printf("%c: unknown command\n", c);
|
---|
2903 | }
|
---|
2904 | #endif
|
---|
2905 |
|
---|
2906 | int fdisk_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
|
---|
2907 | int fdisk_main(int argc UNUSED_PARAM, char **argv)
|
---|
2908 | {
|
---|
2909 | unsigned opt;
|
---|
2910 | /*
|
---|
2911 | * fdisk -v
|
---|
2912 | * fdisk -l [-b sectorsize] [-u] device ...
|
---|
2913 | * fdisk -s [partition] ...
|
---|
2914 | * fdisk [-b sectorsize] [-u] device
|
---|
2915 | *
|
---|
2916 | * Options -C, -H, -S set the geometry.
|
---|
2917 | */
|
---|
2918 | INIT_G();
|
---|
2919 |
|
---|
2920 | close_dev_fd(); /* needed: fd 3 must not stay closed */
|
---|
2921 |
|
---|
2922 | opt_complementary = "b+:C+:H+:S+"; /* numeric params */
|
---|
2923 | opt = getopt32(argv, "b:C:H:lS:u" IF_FEATURE_FDISK_BLKSIZE("s"),
|
---|
2924 | §or_size, &user_cylinders, &user_heads, &user_sectors);
|
---|
2925 | argv += optind;
|
---|
2926 | if (opt & OPT_b) {
|
---|
2927 | /* Ugly: this sector size is really per device,
|
---|
2928 | * so cannot be combined with multiple disks,
|
---|
2929 | * and the same goes for the C/H/S options.
|
---|
2930 | */
|
---|
2931 | if (sector_size < 512
|
---|
2932 | || sector_size > 0x10000
|
---|
2933 | || (sector_size & (sector_size-1)) /* not power of 2 */
|
---|
2934 | ) {
|
---|
2935 | bb_show_usage();
|
---|
2936 | }
|
---|
2937 | sector_offset = 2;
|
---|
2938 | user_set_sector_size = 1;
|
---|
2939 | }
|
---|
2940 | if (user_heads <= 0 || user_heads >= 256)
|
---|
2941 | user_heads = 0;
|
---|
2942 | if (user_sectors <= 0 || user_sectors >= 64)
|
---|
2943 | user_sectors = 0;
|
---|
2944 | if (opt & OPT_u)
|
---|
2945 | display_in_cyl_units = 0; // -u
|
---|
2946 |
|
---|
2947 | #if ENABLE_FEATURE_FDISK_WRITABLE
|
---|
2948 | if (opt & OPT_l) {
|
---|
2949 | nowarn = 1;
|
---|
2950 | #endif
|
---|
2951 | if (*argv) {
|
---|
2952 | listing = 1;
|
---|
2953 | do {
|
---|
2954 | open_list_and_close(*argv, 1);
|
---|
2955 | } while (*++argv);
|
---|
2956 | } else {
|
---|
2957 | /* we don't have device names, */
|
---|
2958 | /* use /proc/partitions instead */
|
---|
2959 | list_devs_in_proc_partititons();
|
---|
2960 | }
|
---|
2961 | return 0;
|
---|
2962 | #if ENABLE_FEATURE_FDISK_WRITABLE
|
---|
2963 | }
|
---|
2964 | #endif
|
---|
2965 |
|
---|
2966 | #if ENABLE_FEATURE_FDISK_BLKSIZE
|
---|
2967 | if (opt & OPT_s) {
|
---|
2968 | int j;
|
---|
2969 |
|
---|
2970 | nowarn = 1;
|
---|
2971 | if (!argv[0])
|
---|
2972 | bb_show_usage();
|
---|
2973 | for (j = 0; argv[j]; j++) {
|
---|
2974 | unsigned long long size;
|
---|
2975 | fd = xopen(argv[j], O_RDONLY);
|
---|
2976 | size = bb_BLKGETSIZE_sectors(fd) / 2;
|
---|
2977 | close(fd);
|
---|
2978 | if (argv[1])
|
---|
2979 | printf("%llu\n", size);
|
---|
2980 | else
|
---|
2981 | printf("%s: %llu\n", argv[j], size);
|
---|
2982 | }
|
---|
2983 | return 0;
|
---|
2984 | }
|
---|
2985 | #endif
|
---|
2986 |
|
---|
2987 | #if ENABLE_FEATURE_FDISK_WRITABLE
|
---|
2988 | if (!argv[0] || argv[1])
|
---|
2989 | bb_show_usage();
|
---|
2990 |
|
---|
2991 | disk_device = argv[0];
|
---|
2992 | get_boot(OPEN_MAIN);
|
---|
2993 |
|
---|
2994 | if (LABEL_IS_OSF) {
|
---|
2995 | /* OSF label, and no DOS label */
|
---|
2996 | printf("Detected an OSF/1 disklabel on %s, entering "
|
---|
2997 | "disklabel mode\n", disk_device);
|
---|
2998 | bsd_select();
|
---|
2999 | /*Why do we do this? It seems to be counter-intuitive*/
|
---|
3000 | current_label_type = LABEL_DOS;
|
---|
3001 | /* If we return we may want to make an empty DOS label? */
|
---|
3002 | }
|
---|
3003 |
|
---|
3004 | while (1) {
|
---|
3005 | int c;
|
---|
3006 | bb_putchar('\n');
|
---|
3007 | c = 0x20 | read_nonempty("Command (m for help): ");
|
---|
3008 | switch (c) {
|
---|
3009 | case 'a':
|
---|
3010 | if (LABEL_IS_DOS)
|
---|
3011 | toggle_active(get_partition(1, g_partitions));
|
---|
3012 | else if (LABEL_IS_SUN)
|
---|
3013 | toggle_sunflags(get_partition(1, g_partitions),
|
---|
3014 | 0x01);
|
---|
3015 | else if (LABEL_IS_SGI)
|
---|
3016 | sgi_set_bootpartition(
|
---|
3017 | get_partition(1, g_partitions));
|
---|
3018 | else
|
---|
3019 | unknown_command(c);
|
---|
3020 | break;
|
---|
3021 | case 'b':
|
---|
3022 | if (LABEL_IS_SGI) {
|
---|
3023 | printf("\nThe current boot file is: %s\n",
|
---|
3024 | sgi_get_bootfile());
|
---|
3025 | if (read_maybe_empty("Please enter the name of the "
|
---|
3026 | "new boot file: ") == '\n')
|
---|
3027 | printf("Boot file unchanged\n");
|
---|
3028 | else
|
---|
3029 | sgi_set_bootfile(line_ptr);
|
---|
3030 | }
|
---|
3031 | #if ENABLE_FEATURE_OSF_LABEL
|
---|
3032 | else
|
---|
3033 | bsd_select();
|
---|
3034 | #endif
|
---|
3035 | break;
|
---|
3036 | case 'c':
|
---|
3037 | if (LABEL_IS_DOS)
|
---|
3038 | toggle_dos_compatibility_flag();
|
---|
3039 | else if (LABEL_IS_SUN)
|
---|
3040 | toggle_sunflags(get_partition(1, g_partitions),
|
---|
3041 | 0x10);
|
---|
3042 | else if (LABEL_IS_SGI)
|
---|
3043 | sgi_set_swappartition(
|
---|
3044 | get_partition(1, g_partitions));
|
---|
3045 | else
|
---|
3046 | unknown_command(c);
|
---|
3047 | break;
|
---|
3048 | case 'd':
|
---|
3049 | {
|
---|
3050 | int j;
|
---|
3051 | /* If sgi_label then don't use get_existing_partition,
|
---|
3052 | let the user select a partition, since
|
---|
3053 | get_existing_partition() only works for Linux-like
|
---|
3054 | partition tables */
|
---|
3055 | if (!LABEL_IS_SGI) {
|
---|
3056 | j = get_existing_partition(1, g_partitions);
|
---|
3057 | } else {
|
---|
3058 | j = get_partition(1, g_partitions);
|
---|
3059 | }
|
---|
3060 | if (j >= 0)
|
---|
3061 | delete_partition(j);
|
---|
3062 | }
|
---|
3063 | break;
|
---|
3064 | case 'i':
|
---|
3065 | if (LABEL_IS_SGI)
|
---|
3066 | create_sgiinfo();
|
---|
3067 | else
|
---|
3068 | unknown_command(c);
|
---|
3069 | case 'l':
|
---|
3070 | list_types(get_sys_types());
|
---|
3071 | break;
|
---|
3072 | case 'm':
|
---|
3073 | menu();
|
---|
3074 | break;
|
---|
3075 | case 'n':
|
---|
3076 | new_partition();
|
---|
3077 | break;
|
---|
3078 | case 'o':
|
---|
3079 | create_doslabel();
|
---|
3080 | break;
|
---|
3081 | case 'p':
|
---|
3082 | list_table(0);
|
---|
3083 | break;
|
---|
3084 | case 'q':
|
---|
3085 | if (ENABLE_FEATURE_CLEAN_UP)
|
---|
3086 | close_dev_fd();
|
---|
3087 | bb_putchar('\n');
|
---|
3088 | return 0;
|
---|
3089 | case 's':
|
---|
3090 | #if ENABLE_FEATURE_SUN_LABEL
|
---|
3091 | create_sunlabel();
|
---|
3092 | #endif
|
---|
3093 | break;
|
---|
3094 | case 't':
|
---|
3095 | change_sysid();
|
---|
3096 | break;
|
---|
3097 | case 'u':
|
---|
3098 | change_units();
|
---|
3099 | break;
|
---|
3100 | case 'v':
|
---|
3101 | verify();
|
---|
3102 | break;
|
---|
3103 | case 'w':
|
---|
3104 | write_table(); /* does not return */
|
---|
3105 | break;
|
---|
3106 | #if ENABLE_FEATURE_FDISK_ADVANCED
|
---|
3107 | case 'x':
|
---|
3108 | if (LABEL_IS_SGI) {
|
---|
3109 | printf("\n\tSorry, no experts menu for SGI "
|
---|
3110 | "partition tables available\n\n");
|
---|
3111 | } else
|
---|
3112 | xselect();
|
---|
3113 | break;
|
---|
3114 | #endif
|
---|
3115 | default:
|
---|
3116 | unknown_command(c);
|
---|
3117 | menu();
|
---|
3118 | }
|
---|
3119 | }
|
---|
3120 | return 0;
|
---|
3121 | #endif /* FEATURE_FDISK_WRITABLE */
|
---|
3122 | }
|
---|