Contents of /trunk/mkinitrd-magellan/busybox/util-linux/fdisk.c
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Sun May 30 11:32:42 2010 UTC (13 years, 11 months ago) by niro
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Sun May 30 11:32:42 2010 UTC (13 years, 11 months ago) by niro
File MIME type: text/plain
File size: 75822 byte(s)
-updated to busybox-1.16.1 and enabled blkid/uuid support in default config
1 | /* vi: set sw=4 ts=4: */ |
2 | /* fdisk.c -- Partition table manipulator for Linux. |
3 | * |
4 | * Copyright (C) 1992 A. V. Le Blanc (LeBlanc@mcc.ac.uk) |
5 | * Copyright (C) 2001,2002 Vladimir Oleynik <dzo@simtreas.ru> (initial bb port) |
6 | * |
7 | * Licensed under the GPL v2 or later, see the file LICENSE in this tarball. |
8 | */ |
9 | |
10 | #ifndef _LARGEFILE64_SOURCE |
11 | /* For lseek64 */ |
12 | # define _LARGEFILE64_SOURCE |
13 | #endif |
14 | #include <assert.h> /* assert */ |
15 | #include <sys/mount.h> |
16 | #if !defined(BLKSSZGET) |
17 | # define BLKSSZGET _IO(0x12, 104) |
18 | #endif |
19 | #if !defined(BLKGETSIZE64) |
20 | # define BLKGETSIZE64 _IOR(0x12,114,size_t) |
21 | #endif |
22 | #include "libbb.h" |
23 | |
24 | /* Looks like someone forgot to add this to config system */ |
25 | #ifndef ENABLE_FEATURE_FDISK_BLKSIZE |
26 | # define ENABLE_FEATURE_FDISK_BLKSIZE 0 |
27 | # define IF_FEATURE_FDISK_BLKSIZE(a) |
28 | #endif |
29 | |
30 | #define DEFAULT_SECTOR_SIZE 512 |
31 | #define DEFAULT_SECTOR_SIZE_STR "512" |
32 | #define MAX_SECTOR_SIZE 2048 |
33 | #define SECTOR_SIZE 512 /* still used in osf/sgi/sun code */ |
34 | #define MAXIMUM_PARTS 60 |
35 | |
36 | #define ACTIVE_FLAG 0x80 |
37 | |
38 | #define EXTENDED 0x05 |
39 | #define WIN98_EXTENDED 0x0f |
40 | #define LINUX_PARTITION 0x81 |
41 | #define LINUX_SWAP 0x82 |
42 | #define LINUX_NATIVE 0x83 |
43 | #define LINUX_EXTENDED 0x85 |
44 | #define LINUX_LVM 0x8e |
45 | #define LINUX_RAID 0xfd |
46 | |
47 | |
48 | enum { |
49 | OPT_b = 1 << 0, |
50 | OPT_C = 1 << 1, |
51 | OPT_H = 1 << 2, |
52 | OPT_l = 1 << 3, |
53 | OPT_S = 1 << 4, |
54 | OPT_u = 1 << 5, |
55 | OPT_s = (1 << 6) * ENABLE_FEATURE_FDISK_BLKSIZE, |
56 | }; |
57 | |
58 | |
59 | typedef unsigned long long ullong; |
60 | /* Used for sector numbers. Partition formats we know |
61 | * do not support more than 2^32 sectors |
62 | */ |
63 | typedef uint32_t sector_t; |
64 | #if UINT_MAX == 4294967295 |
65 | # define SECT_FMT "" |
66 | #elif ULONG_MAX == 4294967295 |
67 | # define SECT_FMT "l" |
68 | #else |
69 | # error Cant detect sizeof(uint32_t) |
70 | #endif |
71 | |
72 | struct hd_geometry { |
73 | unsigned char heads; |
74 | unsigned char sectors; |
75 | unsigned short cylinders; |
76 | unsigned long start; |
77 | }; |
78 | |
79 | #define HDIO_GETGEO 0x0301 /* get device geometry */ |
80 | |
81 | static const char msg_building_new_label[] ALIGN1 = |
82 | "Building a new %s. Changes will remain in memory only,\n" |
83 | "until you decide to write them. After that the previous content\n" |
84 | "won't be recoverable.\n\n"; |
85 | |
86 | static const char msg_part_already_defined[] ALIGN1 = |
87 | "Partition %u is already defined, delete it before re-adding\n"; |
88 | |
89 | |
90 | struct partition { |
91 | unsigned char boot_ind; /* 0x80 - active */ |
92 | unsigned char head; /* starting head */ |
93 | unsigned char sector; /* starting sector */ |
94 | unsigned char cyl; /* starting cylinder */ |
95 | unsigned char sys_ind; /* what partition type */ |
96 | unsigned char end_head; /* end head */ |
97 | unsigned char end_sector; /* end sector */ |
98 | unsigned char end_cyl; /* end cylinder */ |
99 | unsigned char start4[4]; /* starting sector counting from 0 */ |
100 | unsigned char size4[4]; /* nr of sectors in partition */ |
101 | } PACKED; |
102 | |
103 | static const char unable_to_open[] ALIGN1 = "can't open '%s'"; |
104 | static const char unable_to_read[] ALIGN1 = "can't read from %s"; |
105 | static const char unable_to_seek[] ALIGN1 = "can't seek on %s"; |
106 | |
107 | enum label_type { |
108 | LABEL_DOS, LABEL_SUN, LABEL_SGI, LABEL_AIX, LABEL_OSF |
109 | }; |
110 | |
111 | #define LABEL_IS_DOS (LABEL_DOS == current_label_type) |
112 | |
113 | #if ENABLE_FEATURE_SUN_LABEL |
114 | #define LABEL_IS_SUN (LABEL_SUN == current_label_type) |
115 | #define STATIC_SUN static |
116 | #else |
117 | #define LABEL_IS_SUN 0 |
118 | #define STATIC_SUN extern |
119 | #endif |
120 | |
121 | #if ENABLE_FEATURE_SGI_LABEL |
122 | #define LABEL_IS_SGI (LABEL_SGI == current_label_type) |
123 | #define STATIC_SGI static |
124 | #else |
125 | #define LABEL_IS_SGI 0 |
126 | #define STATIC_SGI extern |
127 | #endif |
128 | |
129 | #if ENABLE_FEATURE_AIX_LABEL |
130 | #define LABEL_IS_AIX (LABEL_AIX == current_label_type) |
131 | #define STATIC_AIX static |
132 | #else |
133 | #define LABEL_IS_AIX 0 |
134 | #define STATIC_AIX extern |
135 | #endif |
136 | |
137 | #if ENABLE_FEATURE_OSF_LABEL |
138 | #define LABEL_IS_OSF (LABEL_OSF == current_label_type) |
139 | #define STATIC_OSF static |
140 | #else |
141 | #define LABEL_IS_OSF 0 |
142 | #define STATIC_OSF extern |
143 | #endif |
144 | |
145 | enum action { OPEN_MAIN, TRY_ONLY, CREATE_EMPTY_DOS, CREATE_EMPTY_SUN }; |
146 | |
147 | static void update_units(void); |
148 | #if ENABLE_FEATURE_FDISK_WRITABLE |
149 | static void change_units(void); |
150 | static void reread_partition_table(int leave); |
151 | static void delete_partition(int i); |
152 | static unsigned get_partition(int warn, unsigned max); |
153 | static void list_types(const char *const *sys); |
154 | static sector_t read_int(sector_t low, sector_t dflt, sector_t high, sector_t base, const char *mesg); |
155 | #endif |
156 | static const char *partition_type(unsigned char type); |
157 | static void get_geometry(void); |
158 | #if ENABLE_FEATURE_SUN_LABEL || ENABLE_FEATURE_FDISK_WRITABLE |
159 | static int get_boot(enum action what); |
160 | #else |
161 | static int get_boot(void); |
162 | #endif |
163 | |
164 | #define PLURAL 0 |
165 | #define SINGULAR 1 |
166 | |
167 | static sector_t get_start_sect(const struct partition *p); |
168 | static sector_t get_nr_sects(const struct partition *p); |
169 | |
170 | /* |
171 | * per partition table entry data |
172 | * |
173 | * The four primary partitions have the same sectorbuffer (MBRbuffer) |
174 | * and have NULL ext_pointer. |
175 | * Each logical partition table entry has two pointers, one for the |
176 | * partition and one link to the next one. |
177 | */ |
178 | struct pte { |
179 | struct partition *part_table; /* points into sectorbuffer */ |
180 | struct partition *ext_pointer; /* points into sectorbuffer */ |
181 | sector_t offset; /* disk sector number */ |
182 | char *sectorbuffer; /* disk sector contents */ |
183 | #if ENABLE_FEATURE_FDISK_WRITABLE |
184 | char changed; /* boolean */ |
185 | #endif |
186 | }; |
187 | |
188 | /* DOS partition types */ |
189 | |
190 | static const char *const i386_sys_types[] = { |
191 | "\x00" "Empty", |
192 | "\x01" "FAT12", |
193 | "\x04" "FAT16 <32M", |
194 | "\x05" "Extended", /* DOS 3.3+ extended partition */ |
195 | "\x06" "FAT16", /* DOS 16-bit >=32M */ |
196 | "\x07" "HPFS/NTFS", /* OS/2 IFS, eg, HPFS or NTFS or QNX */ |
197 | "\x0a" "OS/2 Boot Manager",/* OS/2 Boot Manager */ |
198 | "\x0b" "Win95 FAT32", |
199 | "\x0c" "Win95 FAT32 (LBA)",/* LBA really is 'Extended Int 13h' */ |
200 | "\x0e" "Win95 FAT16 (LBA)", |
201 | "\x0f" "Win95 Ext'd (LBA)", |
202 | "\x11" "Hidden FAT12", |
203 | "\x12" "Compaq diagnostics", |
204 | "\x14" "Hidden FAT16 <32M", |
205 | "\x16" "Hidden FAT16", |
206 | "\x17" "Hidden HPFS/NTFS", |
207 | "\x1b" "Hidden Win95 FAT32", |
208 | "\x1c" "Hidden W95 FAT32 (LBA)", |
209 | "\x1e" "Hidden W95 FAT16 (LBA)", |
210 | "\x3c" "Part.Magic recovery", |
211 | "\x41" "PPC PReP Boot", |
212 | "\x42" "SFS", |
213 | "\x63" "GNU HURD or SysV", /* GNU HURD or Mach or Sys V/386 (such as ISC UNIX) */ |
214 | "\x80" "Old Minix", /* Minix 1.4a and earlier */ |
215 | "\x81" "Minix / old Linux",/* Minix 1.4b and later */ |
216 | "\x82" "Linux swap", /* also Solaris */ |
217 | "\x83" "Linux", |
218 | "\x84" "OS/2 hidden C: drive", |
219 | "\x85" "Linux extended", |
220 | "\x86" "NTFS volume set", |
221 | "\x87" "NTFS volume set", |
222 | "\x8e" "Linux LVM", |
223 | "\x9f" "BSD/OS", /* BSDI */ |
224 | "\xa0" "Thinkpad hibernation", |
225 | "\xa5" "FreeBSD", /* various BSD flavours */ |
226 | "\xa6" "OpenBSD", |
227 | "\xa8" "Darwin UFS", |
228 | "\xa9" "NetBSD", |
229 | "\xab" "Darwin boot", |
230 | "\xb7" "BSDI fs", |
231 | "\xb8" "BSDI swap", |
232 | "\xbe" "Solaris boot", |
233 | "\xeb" "BeOS fs", |
234 | "\xee" "EFI GPT", /* Intel EFI GUID Partition Table */ |
235 | "\xef" "EFI (FAT-12/16/32)", /* Intel EFI System Partition */ |
236 | "\xf0" "Linux/PA-RISC boot", /* Linux/PA-RISC boot loader */ |
237 | "\xf2" "DOS secondary", /* DOS 3.3+ secondary */ |
238 | "\xfd" "Linux raid autodetect", /* New (2.2.x) raid partition with |
239 | autodetect using persistent |
240 | superblock */ |
241 | #if 0 /* ENABLE_WEIRD_PARTITION_TYPES */ |
242 | "\x02" "XENIX root", |
243 | "\x03" "XENIX usr", |
244 | "\x08" "AIX", /* AIX boot (AIX -- PS/2 port) or SplitDrive */ |
245 | "\x09" "AIX bootable", /* AIX data or Coherent */ |
246 | "\x10" "OPUS", |
247 | "\x18" "AST SmartSleep", |
248 | "\x24" "NEC DOS", |
249 | "\x39" "Plan 9", |
250 | "\x40" "Venix 80286", |
251 | "\x4d" "QNX4.x", |
252 | "\x4e" "QNX4.x 2nd part", |
253 | "\x4f" "QNX4.x 3rd part", |
254 | "\x50" "OnTrack DM", |
255 | "\x51" "OnTrack DM6 Aux1", /* (or Novell) */ |
256 | "\x52" "CP/M", /* CP/M or Microport SysV/AT */ |
257 | "\x53" "OnTrack DM6 Aux3", |
258 | "\x54" "OnTrackDM6", |
259 | "\x55" "EZ-Drive", |
260 | "\x56" "Golden Bow", |
261 | "\x5c" "Priam Edisk", |
262 | "\x61" "SpeedStor", |
263 | "\x64" "Novell Netware 286", |
264 | "\x65" "Novell Netware 386", |
265 | "\x70" "DiskSecure Multi-Boot", |
266 | "\x75" "PC/IX", |
267 | "\x93" "Amoeba", |
268 | "\x94" "Amoeba BBT", /* (bad block table) */ |
269 | "\xa7" "NeXTSTEP", |
270 | "\xbb" "Boot Wizard hidden", |
271 | "\xc1" "DRDOS/sec (FAT-12)", |
272 | "\xc4" "DRDOS/sec (FAT-16 < 32M)", |
273 | "\xc6" "DRDOS/sec (FAT-16)", |
274 | "\xc7" "Syrinx", |
275 | "\xda" "Non-FS data", |
276 | "\xdb" "CP/M / CTOS / ...",/* CP/M or Concurrent CP/M or |
277 | Concurrent DOS or CTOS */ |
278 | "\xde" "Dell Utility", /* Dell PowerEdge Server utilities */ |
279 | "\xdf" "BootIt", /* BootIt EMBRM */ |
280 | "\xe1" "DOS access", /* DOS access or SpeedStor 12-bit FAT |
281 | extended partition */ |
282 | "\xe3" "DOS R/O", /* DOS R/O or SpeedStor */ |
283 | "\xe4" "SpeedStor", /* SpeedStor 16-bit FAT extended |
284 | partition < 1024 cyl. */ |
285 | "\xf1" "SpeedStor", |
286 | "\xf4" "SpeedStor", /* SpeedStor large partition */ |
287 | "\xfe" "LANstep", /* SpeedStor >1024 cyl. or LANstep */ |
288 | "\xff" "BBT", /* Xenix Bad Block Table */ |
289 | #endif |
290 | NULL |
291 | }; |
292 | |
293 | enum { |
294 | dev_fd = 3 /* the disk */ |
295 | }; |
296 | |
297 | /* Globals */ |
298 | struct globals { |
299 | char *line_ptr; |
300 | |
301 | const char *disk_device; |
302 | int g_partitions; // = 4; /* maximum partition + 1 */ |
303 | unsigned units_per_sector; // = 1; |
304 | unsigned sector_size; // = DEFAULT_SECTOR_SIZE; |
305 | unsigned user_set_sector_size; |
306 | unsigned sector_offset; // = 1; |
307 | unsigned g_heads, g_sectors, g_cylinders; |
308 | smallint /* enum label_type */ current_label_type; |
309 | smallint display_in_cyl_units; // = 1; |
310 | #if ENABLE_FEATURE_OSF_LABEL |
311 | smallint possibly_osf_label; |
312 | #endif |
313 | |
314 | smallint listing; /* no aborts for fdisk -l */ |
315 | smallint dos_compatible_flag; // = 1; |
316 | #if ENABLE_FEATURE_FDISK_WRITABLE |
317 | //int dos_changed; |
318 | smallint nowarn; /* no warnings for fdisk -l/-s */ |
319 | #endif |
320 | int ext_index; /* the prime extended partition */ |
321 | unsigned user_cylinders, user_heads, user_sectors; |
322 | unsigned pt_heads, pt_sectors; |
323 | unsigned kern_heads, kern_sectors; |
324 | sector_t extended_offset; /* offset of link pointers */ |
325 | sector_t total_number_of_sectors; |
326 | |
327 | jmp_buf listingbuf; |
328 | char line_buffer[80]; |
329 | char partname_buffer[80]; |
330 | /* Raw disk label. For DOS-type partition tables the MBR, |
331 | * with descriptions of the primary partitions. */ |
332 | char MBRbuffer[MAX_SECTOR_SIZE]; |
333 | /* Partition tables */ |
334 | struct pte ptes[MAXIMUM_PARTS]; |
335 | }; |
336 | #define G (*ptr_to_globals) |
337 | #define line_ptr (G.line_ptr ) |
338 | #define disk_device (G.disk_device ) |
339 | #define g_partitions (G.g_partitions ) |
340 | #define units_per_sector (G.units_per_sector ) |
341 | #define sector_size (G.sector_size ) |
342 | #define user_set_sector_size (G.user_set_sector_size) |
343 | #define sector_offset (G.sector_offset ) |
344 | #define g_heads (G.g_heads ) |
345 | #define g_sectors (G.g_sectors ) |
346 | #define g_cylinders (G.g_cylinders ) |
347 | #define current_label_type (G.current_label_type ) |
348 | #define display_in_cyl_units (G.display_in_cyl_units) |
349 | #define possibly_osf_label (G.possibly_osf_label ) |
350 | #define listing (G.listing ) |
351 | #define dos_compatible_flag (G.dos_compatible_flag ) |
352 | #define nowarn (G.nowarn ) |
353 | #define ext_index (G.ext_index ) |
354 | #define user_cylinders (G.user_cylinders ) |
355 | #define user_heads (G.user_heads ) |
356 | #define user_sectors (G.user_sectors ) |
357 | #define pt_heads (G.pt_heads ) |
358 | #define pt_sectors (G.pt_sectors ) |
359 | #define kern_heads (G.kern_heads ) |
360 | #define kern_sectors (G.kern_sectors ) |
361 | #define extended_offset (G.extended_offset ) |
362 | #define total_number_of_sectors (G.total_number_of_sectors) |
363 | #define listingbuf (G.listingbuf ) |
364 | #define line_buffer (G.line_buffer ) |
365 | #define partname_buffer (G.partname_buffer) |
366 | #define MBRbuffer (G.MBRbuffer ) |
367 | #define ptes (G.ptes ) |
368 | #define INIT_G() do { \ |
369 | SET_PTR_TO_GLOBALS(xzalloc(sizeof(G))); \ |
370 | sector_size = DEFAULT_SECTOR_SIZE; \ |
371 | sector_offset = 1; \ |
372 | g_partitions = 4; \ |
373 | display_in_cyl_units = 1; \ |
374 | units_per_sector = 1; \ |
375 | dos_compatible_flag = 1; \ |
376 | } while (0) |
377 | |
378 | |
379 | /* TODO: move to libbb? */ |
380 | /* TODO: return unsigned long long, FEATURE_FDISK_BLKSIZE _can_ handle |
381 | * disks > 2^32 sectors |
382 | */ |
383 | static sector_t bb_BLKGETSIZE_sectors(int fd) |
384 | { |
385 | uint64_t v64; |
386 | unsigned long longsectors; |
387 | |
388 | if (ioctl(fd, BLKGETSIZE64, &v64) == 0) { |
389 | /* Got bytes, convert to 512 byte sectors */ |
390 | v64 >>= 9; |
391 | if (v64 != (sector_t)v64) { |
392 | ret_trunc: |
393 | /* Not only DOS, but all other partition tables |
394 | * we support can't record more than 32 bit |
395 | * sector counts or offsets |
396 | */ |
397 | bb_error_msg("device has more than 2^32 sectors, can't use all of them"); |
398 | v64 = (uint32_t)-1L; |
399 | } |
400 | return v64; |
401 | } |
402 | /* Needs temp of type long */ |
403 | if (ioctl(fd, BLKGETSIZE, &longsectors)) |
404 | longsectors = 0; |
405 | if (sizeof(long) > sizeof(sector_t) |
406 | && longsectors != (sector_t)longsectors |
407 | ) { |
408 | goto ret_trunc; |
409 | } |
410 | return longsectors; |
411 | } |
412 | |
413 | |
414 | #define IS_EXTENDED(i) \ |
415 | ((i) == EXTENDED || (i) == WIN98_EXTENDED || (i) == LINUX_EXTENDED) |
416 | |
417 | #define cround(n) (display_in_cyl_units ? ((n)/units_per_sector)+1 : (n)) |
418 | |
419 | #define scround(x) (((x)+units_per_sector-1)/units_per_sector) |
420 | |
421 | #define pt_offset(b, n) \ |
422 | ((struct partition *)((b) + 0x1be + (n) * sizeof(struct partition))) |
423 | |
424 | #define sector(s) ((s) & 0x3f) |
425 | |
426 | #define cylinder(s, c) ((c) | (((s) & 0xc0) << 2)) |
427 | |
428 | #define hsc2sector(h,s,c) \ |
429 | (sector(s) - 1 + sectors * ((h) + heads * cylinder(s,c))) |
430 | |
431 | #define set_hsc(h,s,c,sector) \ |
432 | do { \ |
433 | s = sector % g_sectors + 1; \ |
434 | sector /= g_sectors; \ |
435 | h = sector % g_heads; \ |
436 | sector /= g_heads; \ |
437 | c = sector & 0xff; \ |
438 | s |= (sector >> 2) & 0xc0; \ |
439 | } while (0) |
440 | |
441 | static void |
442 | close_dev_fd(void) |
443 | { |
444 | /* Not really closing, but making sure it is open, and to harmless place */ |
445 | xmove_fd(xopen(bb_dev_null, O_RDONLY), dev_fd); |
446 | } |
447 | |
448 | #if ENABLE_FEATURE_FDISK_WRITABLE |
449 | /* Read line; return 0 or first printable char */ |
450 | static int |
451 | read_line(const char *prompt) |
452 | { |
453 | int sz; |
454 | |
455 | sz = read_line_input(prompt, line_buffer, sizeof(line_buffer), NULL); |
456 | if (sz <= 0) |
457 | exit(EXIT_SUCCESS); /* Ctrl-D or Ctrl-C */ |
458 | |
459 | if (line_buffer[sz-1] == '\n') |
460 | line_buffer[--sz] = '\0'; |
461 | |
462 | line_ptr = line_buffer; |
463 | while (*line_ptr != '\0' && (unsigned char)*line_ptr <= ' ') |
464 | line_ptr++; |
465 | return *line_ptr; |
466 | } |
467 | #endif |
468 | |
469 | /* |
470 | * Return partition name - uses static storage |
471 | */ |
472 | static const char * |
473 | partname(const char *dev, int pno, int lth) |
474 | { |
475 | const char *p; |
476 | int w, wp; |
477 | int bufsiz; |
478 | char *bufp; |
479 | |
480 | bufp = partname_buffer; |
481 | bufsiz = sizeof(partname_buffer); |
482 | |
483 | w = strlen(dev); |
484 | p = ""; |
485 | |
486 | if (isdigit(dev[w-1])) |
487 | p = "p"; |
488 | |
489 | /* devfs kludge - note: fdisk partition names are not supposed |
490 | to equal kernel names, so there is no reason to do this */ |
491 | if (strcmp(dev + w - 4, "disc") == 0) { |
492 | w -= 4; |
493 | p = "part"; |
494 | } |
495 | |
496 | wp = strlen(p); |
497 | |
498 | if (lth) { |
499 | snprintf(bufp, bufsiz, "%*.*s%s%-2u", |
500 | lth-wp-2, w, dev, p, pno); |
501 | } else { |
502 | snprintf(bufp, bufsiz, "%.*s%s%-2u", w, dev, p, pno); |
503 | } |
504 | return bufp; |
505 | } |
506 | |
507 | #if ENABLE_FEATURE_FDISK_WRITABLE |
508 | static void |
509 | set_all_unchanged(void) |
510 | { |
511 | int i; |
512 | |
513 | for (i = 0; i < MAXIMUM_PARTS; i++) |
514 | ptes[i].changed = 0; |
515 | } |
516 | |
517 | static ALWAYS_INLINE void |
518 | set_changed(int i) |
519 | { |
520 | ptes[i].changed = 1; |
521 | } |
522 | #endif /* FEATURE_FDISK_WRITABLE */ |
523 | |
524 | static ALWAYS_INLINE struct partition * |
525 | get_part_table(int i) |
526 | { |
527 | return ptes[i].part_table; |
528 | } |
529 | |
530 | static const char * |
531 | str_units(int n) |
532 | { /* n==1: use singular */ |
533 | if (n == 1) |
534 | return display_in_cyl_units ? "cylinder" : "sector"; |
535 | return display_in_cyl_units ? "cylinders" : "sectors"; |
536 | } |
537 | |
538 | static int |
539 | valid_part_table_flag(const char *mbuffer) |
540 | { |
541 | return (mbuffer[510] == 0x55 && (uint8_t)mbuffer[511] == 0xaa); |
542 | } |
543 | |
544 | #if ENABLE_FEATURE_FDISK_WRITABLE |
545 | static ALWAYS_INLINE void |
546 | write_part_table_flag(char *b) |
547 | { |
548 | b[510] = 0x55; |
549 | b[511] = 0xaa; |
550 | } |
551 | |
552 | static char |
553 | read_nonempty(const char *mesg) |
554 | { |
555 | while (!read_line(mesg)) |
556 | continue; |
557 | return *line_ptr; |
558 | } |
559 | |
560 | static char |
561 | read_maybe_empty(const char *mesg) |
562 | { |
563 | if (!read_line(mesg)) { |
564 | line_ptr = line_buffer; |
565 | line_ptr[0] = '\n'; |
566 | line_ptr[1] = '\0'; |
567 | } |
568 | return line_ptr[0]; |
569 | } |
570 | |
571 | static int |
572 | read_hex(const char *const *sys) |
573 | { |
574 | unsigned long v; |
575 | while (1) { |
576 | read_nonempty("Hex code (type L to list codes): "); |
577 | if (*line_ptr == 'l' || *line_ptr == 'L') { |
578 | list_types(sys); |
579 | continue; |
580 | } |
581 | v = bb_strtoul(line_ptr, NULL, 16); |
582 | if (v > 0xff) |
583 | /* Bad input also triggers this */ |
584 | continue; |
585 | return v; |
586 | } |
587 | } |
588 | #endif /* FEATURE_FDISK_WRITABLE */ |
589 | |
590 | static void fdisk_fatal(const char *why) |
591 | { |
592 | if (listing) { |
593 | close_dev_fd(); |
594 | longjmp(listingbuf, 1); |
595 | } |
596 | bb_error_msg_and_die(why, disk_device); |
597 | } |
598 | |
599 | static void |
600 | seek_sector(sector_t secno) |
601 | { |
602 | #if ENABLE_FDISK_SUPPORT_LARGE_DISKS |
603 | off64_t off = (off64_t)secno * sector_size; |
604 | if (lseek64(dev_fd, off, SEEK_SET) == (off64_t) -1) |
605 | fdisk_fatal(unable_to_seek); |
606 | #else |
607 | uint64_t off = (uint64_t)secno * sector_size; |
608 | if (off > MAXINT(off_t) |
609 | || lseek(dev_fd, (off_t)off, SEEK_SET) == (off_t) -1 |
610 | ) { |
611 | fdisk_fatal(unable_to_seek); |
612 | } |
613 | #endif |
614 | } |
615 | |
616 | #if ENABLE_FEATURE_FDISK_WRITABLE |
617 | static void |
618 | write_sector(sector_t secno, const void *buf) |
619 | { |
620 | seek_sector(secno); |
621 | xwrite(dev_fd, buf, sector_size); |
622 | } |
623 | #endif |
624 | |
625 | |
626 | #include "fdisk_aix.c" |
627 | |
628 | typedef struct { |
629 | unsigned char info[128]; /* Informative text string */ |
630 | unsigned char spare0[14]; |
631 | struct sun_info { |
632 | unsigned char spare1; |
633 | unsigned char id; |
634 | unsigned char spare2; |
635 | unsigned char flags; |
636 | } infos[8]; |
637 | unsigned char spare1[246]; /* Boot information etc. */ |
638 | unsigned short rspeed; /* Disk rotational speed */ |
639 | unsigned short pcylcount; /* Physical cylinder count */ |
640 | unsigned short sparecyl; /* extra sects per cylinder */ |
641 | unsigned char spare2[4]; /* More magic... */ |
642 | unsigned short ilfact; /* Interleave factor */ |
643 | unsigned short ncyl; /* Data cylinder count */ |
644 | unsigned short nacyl; /* Alt. cylinder count */ |
645 | unsigned short ntrks; /* Tracks per cylinder */ |
646 | unsigned short nsect; /* Sectors per track */ |
647 | unsigned char spare3[4]; /* Even more magic... */ |
648 | struct sun_partinfo { |
649 | uint32_t start_cylinder; |
650 | uint32_t num_sectors; |
651 | } partitions[8]; |
652 | unsigned short magic; /* Magic number */ |
653 | unsigned short csum; /* Label xor'd checksum */ |
654 | } sun_partition; |
655 | #define sunlabel ((sun_partition *)MBRbuffer) |
656 | STATIC_OSF void bsd_select(void); |
657 | STATIC_OSF void xbsd_print_disklabel(int); |
658 | #include "fdisk_osf.c" |
659 | |
660 | #if ENABLE_FEATURE_SGI_LABEL || ENABLE_FEATURE_SUN_LABEL |
661 | static uint16_t |
662 | fdisk_swap16(uint16_t x) |
663 | { |
664 | return (x << 8) | (x >> 8); |
665 | } |
666 | |
667 | static uint32_t |
668 | fdisk_swap32(uint32_t x) |
669 | { |
670 | return (x << 24) | |
671 | ((x & 0xFF00) << 8) | |
672 | ((x & 0xFF0000) >> 8) | |
673 | (x >> 24); |
674 | } |
675 | #endif |
676 | |
677 | STATIC_SGI const char *const sgi_sys_types[]; |
678 | STATIC_SGI unsigned sgi_get_num_sectors(int i); |
679 | STATIC_SGI int sgi_get_sysid(int i); |
680 | STATIC_SGI void sgi_delete_partition(int i); |
681 | STATIC_SGI void sgi_change_sysid(int i, int sys); |
682 | STATIC_SGI void sgi_list_table(int xtra); |
683 | #if ENABLE_FEATURE_FDISK_ADVANCED |
684 | STATIC_SGI void sgi_set_xcyl(void); |
685 | #endif |
686 | STATIC_SGI int verify_sgi(int verbose); |
687 | STATIC_SGI void sgi_add_partition(int n, int sys); |
688 | STATIC_SGI void sgi_set_swappartition(int i); |
689 | STATIC_SGI const char *sgi_get_bootfile(void); |
690 | STATIC_SGI void sgi_set_bootfile(const char* aFile); |
691 | STATIC_SGI void create_sgiinfo(void); |
692 | STATIC_SGI void sgi_write_table(void); |
693 | STATIC_SGI void sgi_set_bootpartition(int i); |
694 | #include "fdisk_sgi.c" |
695 | |
696 | STATIC_SUN const char *const sun_sys_types[]; |
697 | STATIC_SUN void sun_delete_partition(int i); |
698 | STATIC_SUN void sun_change_sysid(int i, int sys); |
699 | STATIC_SUN void sun_list_table(int xtra); |
700 | STATIC_SUN void add_sun_partition(int n, int sys); |
701 | #if ENABLE_FEATURE_FDISK_ADVANCED |
702 | STATIC_SUN void sun_set_alt_cyl(void); |
703 | STATIC_SUN void sun_set_ncyl(int cyl); |
704 | STATIC_SUN void sun_set_xcyl(void); |
705 | STATIC_SUN void sun_set_ilfact(void); |
706 | STATIC_SUN void sun_set_rspeed(void); |
707 | STATIC_SUN void sun_set_pcylcount(void); |
708 | #endif |
709 | STATIC_SUN void toggle_sunflags(int i, unsigned char mask); |
710 | STATIC_SUN void verify_sun(void); |
711 | STATIC_SUN void sun_write_table(void); |
712 | #include "fdisk_sun.c" |
713 | |
714 | |
715 | #if ENABLE_FEATURE_FDISK_WRITABLE |
716 | /* start_sect and nr_sects are stored little endian on all machines */ |
717 | /* moreover, they are not aligned correctly */ |
718 | static void |
719 | store4_little_endian(unsigned char *cp, unsigned val) |
720 | { |
721 | cp[0] = val; |
722 | cp[1] = val >> 8; |
723 | cp[2] = val >> 16; |
724 | cp[3] = val >> 24; |
725 | } |
726 | #endif /* FEATURE_FDISK_WRITABLE */ |
727 | |
728 | static unsigned |
729 | read4_little_endian(const unsigned char *cp) |
730 | { |
731 | return cp[0] + (cp[1] << 8) + (cp[2] << 16) + (cp[3] << 24); |
732 | } |
733 | |
734 | #if ENABLE_FEATURE_FDISK_WRITABLE |
735 | static void |
736 | set_start_sect(struct partition *p, unsigned start_sect) |
737 | { |
738 | store4_little_endian(p->start4, start_sect); |
739 | } |
740 | #endif |
741 | |
742 | static sector_t |
743 | get_start_sect(const struct partition *p) |
744 | { |
745 | return read4_little_endian(p->start4); |
746 | } |
747 | |
748 | #if ENABLE_FEATURE_FDISK_WRITABLE |
749 | static void |
750 | set_nr_sects(struct partition *p, unsigned nr_sects) |
751 | { |
752 | store4_little_endian(p->size4, nr_sects); |
753 | } |
754 | #endif |
755 | |
756 | static sector_t |
757 | get_nr_sects(const struct partition *p) |
758 | { |
759 | return read4_little_endian(p->size4); |
760 | } |
761 | |
762 | /* Allocate a buffer and read a partition table sector */ |
763 | static void |
764 | read_pte(struct pte *pe, sector_t offset) |
765 | { |
766 | pe->offset = offset; |
767 | pe->sectorbuffer = xzalloc(sector_size); |
768 | seek_sector(offset); |
769 | /* xread would make us abort - bad for fdisk -l */ |
770 | if (full_read(dev_fd, pe->sectorbuffer, sector_size) != sector_size) |
771 | fdisk_fatal(unable_to_read); |
772 | #if ENABLE_FEATURE_FDISK_WRITABLE |
773 | pe->changed = 0; |
774 | #endif |
775 | pe->part_table = pe->ext_pointer = NULL; |
776 | } |
777 | |
778 | static sector_t |
779 | get_partition_start(const struct pte *pe) |
780 | { |
781 | return pe->offset + get_start_sect(pe->part_table); |
782 | } |
783 | |
784 | #if ENABLE_FEATURE_FDISK_WRITABLE |
785 | /* |
786 | * Avoid warning about DOS partitions when no DOS partition was changed. |
787 | * Here a heuristic "is probably dos partition". |
788 | * We might also do the opposite and warn in all cases except |
789 | * for "is probably nondos partition". |
790 | */ |
791 | #ifdef UNUSED |
792 | static int |
793 | is_dos_partition(int t) |
794 | { |
795 | return (t == 1 || t == 4 || t == 6 || |
796 | t == 0x0b || t == 0x0c || t == 0x0e || |
797 | t == 0x11 || t == 0x12 || t == 0x14 || t == 0x16 || |
798 | t == 0x1b || t == 0x1c || t == 0x1e || t == 0x24 || |
799 | t == 0xc1 || t == 0xc4 || t == 0xc6); |
800 | } |
801 | #endif |
802 | |
803 | static void |
804 | menu(void) |
805 | { |
806 | puts("Command Action"); |
807 | if (LABEL_IS_SUN) { |
808 | puts("a\ttoggle a read only flag"); /* sun */ |
809 | puts("b\tedit bsd disklabel"); |
810 | puts("c\ttoggle the mountable flag"); /* sun */ |
811 | puts("d\tdelete a partition"); |
812 | puts("l\tlist known partition types"); |
813 | puts("n\tadd a new partition"); |
814 | puts("o\tcreate a new empty DOS partition table"); |
815 | puts("p\tprint the partition table"); |
816 | puts("q\tquit without saving changes"); |
817 | puts("s\tcreate a new empty Sun disklabel"); /* sun */ |
818 | puts("t\tchange a partition's system id"); |
819 | puts("u\tchange display/entry units"); |
820 | puts("v\tverify the partition table"); |
821 | puts("w\twrite table to disk and exit"); |
822 | #if ENABLE_FEATURE_FDISK_ADVANCED |
823 | puts("x\textra functionality (experts only)"); |
824 | #endif |
825 | } else if (LABEL_IS_SGI) { |
826 | puts("a\tselect bootable partition"); /* sgi flavour */ |
827 | puts("b\tedit bootfile entry"); /* sgi */ |
828 | puts("c\tselect sgi swap partition"); /* sgi flavour */ |
829 | puts("d\tdelete a partition"); |
830 | puts("l\tlist known partition types"); |
831 | puts("n\tadd a new partition"); |
832 | puts("o\tcreate a new empty DOS partition table"); |
833 | puts("p\tprint the partition table"); |
834 | puts("q\tquit without saving changes"); |
835 | puts("s\tcreate a new empty Sun disklabel"); /* sun */ |
836 | puts("t\tchange a partition's system id"); |
837 | puts("u\tchange display/entry units"); |
838 | puts("v\tverify the partition table"); |
839 | puts("w\twrite table to disk and exit"); |
840 | } else if (LABEL_IS_AIX) { |
841 | puts("o\tcreate a new empty DOS partition table"); |
842 | puts("q\tquit without saving changes"); |
843 | puts("s\tcreate a new empty Sun disklabel"); /* sun */ |
844 | } else { |
845 | puts("a\ttoggle a bootable flag"); |
846 | puts("b\tedit bsd disklabel"); |
847 | puts("c\ttoggle the dos compatibility flag"); |
848 | puts("d\tdelete a partition"); |
849 | puts("l\tlist known partition types"); |
850 | puts("n\tadd a new partition"); |
851 | puts("o\tcreate a new empty DOS partition table"); |
852 | puts("p\tprint the partition table"); |
853 | puts("q\tquit without saving changes"); |
854 | puts("s\tcreate a new empty Sun disklabel"); /* sun */ |
855 | puts("t\tchange a partition's system id"); |
856 | puts("u\tchange display/entry units"); |
857 | puts("v\tverify the partition table"); |
858 | puts("w\twrite table to disk and exit"); |
859 | #if ENABLE_FEATURE_FDISK_ADVANCED |
860 | puts("x\textra functionality (experts only)"); |
861 | #endif |
862 | } |
863 | } |
864 | #endif /* FEATURE_FDISK_WRITABLE */ |
865 | |
866 | |
867 | #if ENABLE_FEATURE_FDISK_ADVANCED |
868 | static void |
869 | xmenu(void) |
870 | { |
871 | puts("Command Action"); |
872 | if (LABEL_IS_SUN) { |
873 | puts("a\tchange number of alternate cylinders"); /*sun*/ |
874 | puts("c\tchange number of cylinders"); |
875 | puts("d\tprint the raw data in the partition table"); |
876 | puts("e\tchange number of extra sectors per cylinder");/*sun*/ |
877 | puts("h\tchange number of heads"); |
878 | puts("i\tchange interleave factor"); /*sun*/ |
879 | puts("o\tchange rotation speed (rpm)"); /*sun*/ |
880 | puts("p\tprint the partition table"); |
881 | puts("q\tquit without saving changes"); |
882 | puts("r\treturn to main menu"); |
883 | puts("s\tchange number of sectors/track"); |
884 | puts("v\tverify the partition table"); |
885 | puts("w\twrite table to disk and exit"); |
886 | puts("y\tchange number of physical cylinders"); /*sun*/ |
887 | } else if (LABEL_IS_SGI) { |
888 | puts("b\tmove beginning of data in a partition"); /* !sun */ |
889 | puts("c\tchange number of cylinders"); |
890 | puts("d\tprint the raw data in the partition table"); |
891 | puts("e\tlist extended partitions"); /* !sun */ |
892 | puts("g\tcreate an IRIX (SGI) partition table");/* sgi */ |
893 | puts("h\tchange number of heads"); |
894 | puts("p\tprint the partition table"); |
895 | puts("q\tquit without saving changes"); |
896 | puts("r\treturn to main menu"); |
897 | puts("s\tchange number of sectors/track"); |
898 | puts("v\tverify the partition table"); |
899 | puts("w\twrite table to disk and exit"); |
900 | } else if (LABEL_IS_AIX) { |
901 | puts("b\tmove beginning of data in a partition"); /* !sun */ |
902 | puts("c\tchange number of cylinders"); |
903 | puts("d\tprint the raw data in the partition table"); |
904 | puts("e\tlist extended partitions"); /* !sun */ |
905 | puts("g\tcreate an IRIX (SGI) partition table");/* sgi */ |
906 | puts("h\tchange number of heads"); |
907 | puts("p\tprint the partition table"); |
908 | puts("q\tquit without saving changes"); |
909 | puts("r\treturn to main menu"); |
910 | puts("s\tchange number of sectors/track"); |
911 | puts("v\tverify the partition table"); |
912 | puts("w\twrite table to disk and exit"); |
913 | } else { |
914 | puts("b\tmove beginning of data in a partition"); /* !sun */ |
915 | puts("c\tchange number of cylinders"); |
916 | puts("d\tprint the raw data in the partition table"); |
917 | puts("e\tlist extended partitions"); /* !sun */ |
918 | puts("f\tfix partition order"); /* !sun, !aix, !sgi */ |
919 | #if ENABLE_FEATURE_SGI_LABEL |
920 | puts("g\tcreate an IRIX (SGI) partition table");/* sgi */ |
921 | #endif |
922 | puts("h\tchange number of heads"); |
923 | puts("p\tprint the partition table"); |
924 | puts("q\tquit without saving changes"); |
925 | puts("r\treturn to main menu"); |
926 | puts("s\tchange number of sectors/track"); |
927 | puts("v\tverify the partition table"); |
928 | puts("w\twrite table to disk and exit"); |
929 | } |
930 | } |
931 | #endif /* ADVANCED mode */ |
932 | |
933 | #if ENABLE_FEATURE_FDISK_WRITABLE |
934 | static const char *const * |
935 | get_sys_types(void) |
936 | { |
937 | return ( |
938 | LABEL_IS_SUN ? sun_sys_types : |
939 | LABEL_IS_SGI ? sgi_sys_types : |
940 | i386_sys_types); |
941 | } |
942 | #else |
943 | #define get_sys_types() i386_sys_types |
944 | #endif /* FEATURE_FDISK_WRITABLE */ |
945 | |
946 | static const char * |
947 | partition_type(unsigned char type) |
948 | { |
949 | int i; |
950 | const char *const *types = get_sys_types(); |
951 | |
952 | for (i = 0; types[i]; i++) |
953 | if ((unsigned char)types[i][0] == type) |
954 | return types[i] + 1; |
955 | |
956 | return "Unknown"; |
957 | } |
958 | |
959 | |
960 | #if ENABLE_FEATURE_FDISK_WRITABLE |
961 | static int |
962 | get_sysid(int i) |
963 | { |
964 | return LABEL_IS_SUN ? sunlabel->infos[i].id : |
965 | (LABEL_IS_SGI ? sgi_get_sysid(i) : |
966 | ptes[i].part_table->sys_ind); |
967 | } |
968 | |
969 | static void |
970 | list_types(const char *const *sys) |
971 | { |
972 | enum { COLS = 3 }; |
973 | |
974 | unsigned last[COLS]; |
975 | unsigned done, next, size; |
976 | int i; |
977 | |
978 | for (size = 0; sys[size]; size++) |
979 | continue; |
980 | |
981 | done = 0; |
982 | for (i = COLS-1; i >= 0; i--) { |
983 | done += (size + i - done) / (i + 1); |
984 | last[COLS-1 - i] = done; |
985 | } |
986 | |
987 | i = done = next = 0; |
988 | do { |
989 | printf("%c%2x %-22.22s", i ? ' ' : '\n', |
990 | (unsigned char)sys[next][0], |
991 | sys[next] + 1); |
992 | next = last[i++] + done; |
993 | if (i >= COLS || next >= last[i]) { |
994 | i = 0; |
995 | next = ++done; |
996 | } |
997 | } while (done < last[0]); |
998 | bb_putchar('\n'); |
999 | } |
1000 | #endif /* FEATURE_FDISK_WRITABLE */ |
1001 | |
1002 | static int |
1003 | is_cleared_partition(const struct partition *p) |
1004 | { |
1005 | return !(!p || p->boot_ind || p->head || p->sector || p->cyl || |
1006 | p->sys_ind || p->end_head || p->end_sector || p->end_cyl || |
1007 | get_start_sect(p) || get_nr_sects(p)); |
1008 | } |
1009 | |
1010 | static void |
1011 | clear_partition(struct partition *p) |
1012 | { |
1013 | if (!p) |
1014 | return; |
1015 | memset(p, 0, sizeof(struct partition)); |
1016 | } |
1017 | |
1018 | #if ENABLE_FEATURE_FDISK_WRITABLE |
1019 | static void |
1020 | set_partition(int i, int doext, sector_t start, sector_t stop, int sysid) |
1021 | { |
1022 | struct partition *p; |
1023 | sector_t offset; |
1024 | |
1025 | if (doext) { |
1026 | p = ptes[i].ext_pointer; |
1027 | offset = extended_offset; |
1028 | } else { |
1029 | p = ptes[i].part_table; |
1030 | offset = ptes[i].offset; |
1031 | } |
1032 | p->boot_ind = 0; |
1033 | p->sys_ind = sysid; |
1034 | set_start_sect(p, start - offset); |
1035 | set_nr_sects(p, stop - start + 1); |
1036 | if (dos_compatible_flag && (start / (g_sectors * g_heads) > 1023)) |
1037 | start = g_heads * g_sectors * 1024 - 1; |
1038 | set_hsc(p->head, p->sector, p->cyl, start); |
1039 | if (dos_compatible_flag && (stop / (g_sectors * g_heads) > 1023)) |
1040 | stop = g_heads * g_sectors * 1024 - 1; |
1041 | set_hsc(p->end_head, p->end_sector, p->end_cyl, stop); |
1042 | ptes[i].changed = 1; |
1043 | } |
1044 | #endif |
1045 | |
1046 | static int |
1047 | warn_geometry(void) |
1048 | { |
1049 | if (g_heads && g_sectors && g_cylinders) |
1050 | return 0; |
1051 | |
1052 | printf("Unknown value(s) for:"); |
1053 | if (!g_heads) |
1054 | printf(" heads"); |
1055 | if (!g_sectors) |
1056 | printf(" sectors"); |
1057 | if (!g_cylinders) |
1058 | printf(" cylinders"); |
1059 | printf( |
1060 | #if ENABLE_FEATURE_FDISK_WRITABLE |
1061 | " (settable in the extra functions menu)" |
1062 | #endif |
1063 | "\n"); |
1064 | return 1; |
1065 | } |
1066 | |
1067 | static void |
1068 | update_units(void) |
1069 | { |
1070 | int cyl_units = g_heads * g_sectors; |
1071 | |
1072 | if (display_in_cyl_units && cyl_units) |
1073 | units_per_sector = cyl_units; |
1074 | else |
1075 | units_per_sector = 1; /* in sectors */ |
1076 | } |
1077 | |
1078 | #if ENABLE_FEATURE_FDISK_WRITABLE |
1079 | static void |
1080 | warn_cylinders(void) |
1081 | { |
1082 | if (LABEL_IS_DOS && g_cylinders > 1024 && !nowarn) |
1083 | printf("\n" |
1084 | "The number of cylinders for this disk is set to %u.\n" |
1085 | "There is nothing wrong with that, but this is larger than 1024,\n" |
1086 | "and could in certain setups cause problems with:\n" |
1087 | "1) software that runs at boot time (e.g., old versions of LILO)\n" |
1088 | "2) booting and partitioning software from other OSs\n" |
1089 | " (e.g., DOS FDISK, OS/2 FDISK)\n", |
1090 | g_cylinders); |
1091 | } |
1092 | #endif |
1093 | |
1094 | static void |
1095 | read_extended(int ext) |
1096 | { |
1097 | int i; |
1098 | struct pte *pex; |
1099 | struct partition *p, *q; |
1100 | |
1101 | ext_index = ext; |
1102 | pex = &ptes[ext]; |
1103 | pex->ext_pointer = pex->part_table; |
1104 | |
1105 | p = pex->part_table; |
1106 | if (!get_start_sect(p)) { |
1107 | printf("Bad offset in primary extended partition\n"); |
1108 | return; |
1109 | } |
1110 | |
1111 | while (IS_EXTENDED(p->sys_ind)) { |
1112 | struct pte *pe = &ptes[g_partitions]; |
1113 | |
1114 | if (g_partitions >= MAXIMUM_PARTS) { |
1115 | /* This is not a Linux restriction, but |
1116 | this program uses arrays of size MAXIMUM_PARTS. |
1117 | Do not try to 'improve' this test. */ |
1118 | struct pte *pre = &ptes[g_partitions - 1]; |
1119 | #if ENABLE_FEATURE_FDISK_WRITABLE |
1120 | printf("Warning: deleting partitions after %u\n", |
1121 | g_partitions); |
1122 | pre->changed = 1; |
1123 | #endif |
1124 | clear_partition(pre->ext_pointer); |
1125 | return; |
1126 | } |
1127 | |
1128 | read_pte(pe, extended_offset + get_start_sect(p)); |
1129 | |
1130 | if (!extended_offset) |
1131 | extended_offset = get_start_sect(p); |
1132 | |
1133 | q = p = pt_offset(pe->sectorbuffer, 0); |
1134 | for (i = 0; i < 4; i++, p++) if (get_nr_sects(p)) { |
1135 | if (IS_EXTENDED(p->sys_ind)) { |
1136 | if (pe->ext_pointer) |
1137 | printf("Warning: extra link " |
1138 | "pointer in partition table" |
1139 | " %u\n", g_partitions + 1); |
1140 | else |
1141 | pe->ext_pointer = p; |
1142 | } else if (p->sys_ind) { |
1143 | if (pe->part_table) |
1144 | printf("Warning: ignoring extra " |
1145 | "data in partition table" |
1146 | " %u\n", g_partitions + 1); |
1147 | else |
1148 | pe->part_table = p; |
1149 | } |
1150 | } |
1151 | |
1152 | /* very strange code here... */ |
1153 | if (!pe->part_table) { |
1154 | if (q != pe->ext_pointer) |
1155 | pe->part_table = q; |
1156 | else |
1157 | pe->part_table = q + 1; |
1158 | } |
1159 | if (!pe->ext_pointer) { |
1160 | if (q != pe->part_table) |
1161 | pe->ext_pointer = q; |
1162 | else |
1163 | pe->ext_pointer = q + 1; |
1164 | } |
1165 | |
1166 | p = pe->ext_pointer; |
1167 | g_partitions++; |
1168 | } |
1169 | |
1170 | #if ENABLE_FEATURE_FDISK_WRITABLE |
1171 | /* remove empty links */ |
1172 | remove: |
1173 | for (i = 4; i < g_partitions; i++) { |
1174 | struct pte *pe = &ptes[i]; |
1175 | |
1176 | if (!get_nr_sects(pe->part_table) |
1177 | && (g_partitions > 5 || ptes[4].part_table->sys_ind) |
1178 | ) { |
1179 | printf("Omitting empty partition (%u)\n", i+1); |
1180 | delete_partition(i); |
1181 | goto remove; /* numbering changed */ |
1182 | } |
1183 | } |
1184 | #endif |
1185 | } |
1186 | |
1187 | #if ENABLE_FEATURE_FDISK_WRITABLE |
1188 | static void |
1189 | create_doslabel(void) |
1190 | { |
1191 | int i; |
1192 | |
1193 | printf(msg_building_new_label, "DOS disklabel"); |
1194 | |
1195 | current_label_type = LABEL_DOS; |
1196 | |
1197 | #if ENABLE_FEATURE_OSF_LABEL |
1198 | possibly_osf_label = 0; |
1199 | #endif |
1200 | g_partitions = 4; |
1201 | |
1202 | for (i = 510-64; i < 510; i++) |
1203 | MBRbuffer[i] = 0; |
1204 | write_part_table_flag(MBRbuffer); |
1205 | extended_offset = 0; |
1206 | set_all_unchanged(); |
1207 | set_changed(0); |
1208 | get_boot(CREATE_EMPTY_DOS); |
1209 | } |
1210 | #endif /* FEATURE_FDISK_WRITABLE */ |
1211 | |
1212 | static void |
1213 | get_sectorsize(void) |
1214 | { |
1215 | if (!user_set_sector_size) { |
1216 | int arg; |
1217 | if (ioctl(dev_fd, BLKSSZGET, &arg) == 0) |
1218 | sector_size = arg; |
1219 | if (sector_size != DEFAULT_SECTOR_SIZE) |
1220 | printf("Note: sector size is %u " |
1221 | "(not " DEFAULT_SECTOR_SIZE_STR ")\n", |
1222 | sector_size); |
1223 | } |
1224 | } |
1225 | |
1226 | static void |
1227 | get_kernel_geometry(void) |
1228 | { |
1229 | struct hd_geometry geometry; |
1230 | |
1231 | if (!ioctl(dev_fd, HDIO_GETGEO, &geometry)) { |
1232 | kern_heads = geometry.heads; |
1233 | kern_sectors = geometry.sectors; |
1234 | /* never use geometry.cylinders - it is truncated */ |
1235 | } |
1236 | } |
1237 | |
1238 | static void |
1239 | get_partition_table_geometry(void) |
1240 | { |
1241 | const unsigned char *bufp = (const unsigned char *)MBRbuffer; |
1242 | struct partition *p; |
1243 | int i, h, s, hh, ss; |
1244 | int first = 1; |
1245 | int bad = 0; |
1246 | |
1247 | if (!(valid_part_table_flag((char*)bufp))) |
1248 | return; |
1249 | |
1250 | hh = ss = 0; |
1251 | for (i = 0; i < 4; i++) { |
1252 | p = pt_offset(bufp, i); |
1253 | if (p->sys_ind != 0) { |
1254 | h = p->end_head + 1; |
1255 | s = (p->end_sector & 077); |
1256 | if (first) { |
1257 | hh = h; |
1258 | ss = s; |
1259 | first = 0; |
1260 | } else if (hh != h || ss != s) |
1261 | bad = 1; |
1262 | } |
1263 | } |
1264 | |
1265 | if (!first && !bad) { |
1266 | pt_heads = hh; |
1267 | pt_sectors = ss; |
1268 | } |
1269 | } |
1270 | |
1271 | static void |
1272 | get_geometry(void) |
1273 | { |
1274 | int sec_fac; |
1275 | |
1276 | get_sectorsize(); |
1277 | sec_fac = sector_size / 512; |
1278 | #if ENABLE_FEATURE_SUN_LABEL |
1279 | guess_device_type(); |
1280 | #endif |
1281 | g_heads = g_cylinders = g_sectors = 0; |
1282 | kern_heads = kern_sectors = 0; |
1283 | pt_heads = pt_sectors = 0; |
1284 | |
1285 | get_kernel_geometry(); |
1286 | get_partition_table_geometry(); |
1287 | |
1288 | g_heads = user_heads ? user_heads : |
1289 | pt_heads ? pt_heads : |
1290 | kern_heads ? kern_heads : 255; |
1291 | g_sectors = user_sectors ? user_sectors : |
1292 | pt_sectors ? pt_sectors : |
1293 | kern_sectors ? kern_sectors : 63; |
1294 | total_number_of_sectors = bb_BLKGETSIZE_sectors(dev_fd); |
1295 | |
1296 | sector_offset = 1; |
1297 | if (dos_compatible_flag) |
1298 | sector_offset = g_sectors; |
1299 | |
1300 | g_cylinders = total_number_of_sectors / (g_heads * g_sectors * sec_fac); |
1301 | if (!g_cylinders) |
1302 | g_cylinders = user_cylinders; |
1303 | } |
1304 | |
1305 | /* |
1306 | * Opens disk_device and optionally reads MBR. |
1307 | * FIXME: document what each 'what' value will do! |
1308 | * Returns: |
1309 | * -1: no 0xaa55 flag present (possibly entire disk BSD) |
1310 | * 0: found or created label |
1311 | * 1: I/O error |
1312 | */ |
1313 | #if ENABLE_FEATURE_SUN_LABEL || ENABLE_FEATURE_FDISK_WRITABLE |
1314 | static int get_boot(enum action what) |
1315 | #else |
1316 | static int get_boot(void) |
1317 | #define get_boot(what) get_boot() |
1318 | #endif |
1319 | { |
1320 | int i, fd; |
1321 | |
1322 | g_partitions = 4; |
1323 | for (i = 0; i < 4; i++) { |
1324 | struct pte *pe = &ptes[i]; |
1325 | pe->part_table = pt_offset(MBRbuffer, i); |
1326 | pe->ext_pointer = NULL; |
1327 | pe->offset = 0; |
1328 | pe->sectorbuffer = MBRbuffer; |
1329 | #if ENABLE_FEATURE_FDISK_WRITABLE |
1330 | pe->changed = (what == CREATE_EMPTY_DOS); |
1331 | #endif |
1332 | } |
1333 | |
1334 | #if ENABLE_FEATURE_FDISK_WRITABLE |
1335 | // ALERT! highly idiotic design! |
1336 | // We end up here when we call get_boot() recursively |
1337 | // via get_boot() [table is bad] -> create_doslabel() -> get_boot(CREATE_EMPTY_DOS). |
1338 | // or get_boot() [table is bad] -> create_sunlabel() -> get_boot(CREATE_EMPTY_SUN). |
1339 | // (just factor out re-init of ptes[0,1,2,3] in a separate fn instead?) |
1340 | // So skip opening device _again_... |
1341 | if (what == CREATE_EMPTY_DOS IF_FEATURE_SUN_LABEL(|| what == CREATE_EMPTY_SUN)) |
1342 | goto created_table; |
1343 | |
1344 | fd = open(disk_device, (option_mask32 & OPT_l) ? O_RDONLY : O_RDWR); |
1345 | |
1346 | if (fd < 0) { |
1347 | fd = open(disk_device, O_RDONLY); |
1348 | if (fd < 0) { |
1349 | if (what == TRY_ONLY) |
1350 | return 1; |
1351 | fdisk_fatal(unable_to_open); |
1352 | } |
1353 | printf("'%s' is opened for read only\n", disk_device); |
1354 | } |
1355 | xmove_fd(fd, dev_fd); |
1356 | if (512 != full_read(dev_fd, MBRbuffer, 512)) { |
1357 | if (what == TRY_ONLY) { |
1358 | close_dev_fd(); |
1359 | return 1; |
1360 | } |
1361 | fdisk_fatal(unable_to_read); |
1362 | } |
1363 | #else |
1364 | fd = open(disk_device, O_RDONLY); |
1365 | if (fd < 0) |
1366 | return 1; |
1367 | if (512 != full_read(fd, MBRbuffer, 512)) { |
1368 | close(fd); |
1369 | return 1; |
1370 | } |
1371 | xmove_fd(fd, dev_fd); |
1372 | #endif |
1373 | |
1374 | get_geometry(); |
1375 | update_units(); |
1376 | |
1377 | #if ENABLE_FEATURE_SUN_LABEL |
1378 | if (check_sun_label()) |
1379 | return 0; |
1380 | #endif |
1381 | #if ENABLE_FEATURE_SGI_LABEL |
1382 | if (check_sgi_label()) |
1383 | return 0; |
1384 | #endif |
1385 | #if ENABLE_FEATURE_AIX_LABEL |
1386 | if (check_aix_label()) |
1387 | return 0; |
1388 | #endif |
1389 | #if ENABLE_FEATURE_OSF_LABEL |
1390 | if (check_osf_label()) { |
1391 | possibly_osf_label = 1; |
1392 | if (!valid_part_table_flag(MBRbuffer)) { |
1393 | current_label_type = LABEL_OSF; |
1394 | return 0; |
1395 | } |
1396 | printf("This disk has both DOS and BSD magic.\n" |
1397 | "Give the 'b' command to go to BSD mode.\n"); |
1398 | } |
1399 | #endif |
1400 | |
1401 | #if !ENABLE_FEATURE_FDISK_WRITABLE |
1402 | if (!valid_part_table_flag(MBRbuffer)) |
1403 | return -1; |
1404 | #else |
1405 | if (!valid_part_table_flag(MBRbuffer)) { |
1406 | if (what == OPEN_MAIN) { |
1407 | printf("Device contains neither a valid DOS " |
1408 | "partition table, nor Sun, SGI or OSF " |
1409 | "disklabel\n"); |
1410 | #ifdef __sparc__ |
1411 | IF_FEATURE_SUN_LABEL(create_sunlabel();) |
1412 | #else |
1413 | create_doslabel(); |
1414 | #endif |
1415 | return 0; |
1416 | } |
1417 | /* TRY_ONLY: */ |
1418 | return -1; |
1419 | } |
1420 | created_table: |
1421 | #endif /* FEATURE_FDISK_WRITABLE */ |
1422 | |
1423 | |
1424 | IF_FEATURE_FDISK_WRITABLE(warn_cylinders();) |
1425 | warn_geometry(); |
1426 | |
1427 | for (i = 0; i < 4; i++) { |
1428 | if (IS_EXTENDED(ptes[i].part_table->sys_ind)) { |
1429 | if (g_partitions != 4) |
1430 | printf("Ignoring extra extended " |
1431 | "partition %u\n", i + 1); |
1432 | else |
1433 | read_extended(i); |
1434 | } |
1435 | } |
1436 | |
1437 | for (i = 3; i < g_partitions; i++) { |
1438 | struct pte *pe = &ptes[i]; |
1439 | if (!valid_part_table_flag(pe->sectorbuffer)) { |
1440 | printf("Warning: invalid flag 0x%02x,0x%02x of partition " |
1441 | "table %u will be corrected by w(rite)\n", |
1442 | pe->sectorbuffer[510], |
1443 | pe->sectorbuffer[511], |
1444 | i + 1); |
1445 | IF_FEATURE_FDISK_WRITABLE(pe->changed = 1;) |
1446 | } |
1447 | } |
1448 | |
1449 | return 0; |
1450 | } |
1451 | |
1452 | #if ENABLE_FEATURE_FDISK_WRITABLE |
1453 | /* |
1454 | * Print the message MESG, then read an integer between LOW and HIGH (inclusive). |
1455 | * If the user hits Enter, DFLT is returned. |
1456 | * Answers like +10 are interpreted as offsets from BASE. |
1457 | * |
1458 | * There is no default if DFLT is not between LOW and HIGH. |
1459 | */ |
1460 | static sector_t |
1461 | read_int(sector_t low, sector_t dflt, sector_t high, sector_t base, const char *mesg) |
1462 | { |
1463 | sector_t value; |
1464 | int default_ok = 1; |
1465 | const char *fmt = "%s (%u-%u, default %u): "; |
1466 | |
1467 | if (dflt < low || dflt > high) { |
1468 | fmt = "%s (%u-%u): "; |
1469 | default_ok = 0; |
1470 | } |
1471 | |
1472 | while (1) { |
1473 | int use_default = default_ok; |
1474 | |
1475 | /* ask question and read answer */ |
1476 | do { |
1477 | printf(fmt, mesg, low, high, dflt); |
1478 | read_maybe_empty(""); |
1479 | } while (*line_ptr != '\n' && !isdigit(*line_ptr) |
1480 | && *line_ptr != '-' && *line_ptr != '+'); |
1481 | |
1482 | if (*line_ptr == '+' || *line_ptr == '-') { |
1483 | int minus = (*line_ptr == '-'); |
1484 | int absolute = 0; |
1485 | |
1486 | value = atoi(line_ptr + 1); |
1487 | |
1488 | /* (1) if 2nd char is digit, use_default = 0. |
1489 | * (2) move line_ptr to first non-digit. */ |
1490 | while (isdigit(*++line_ptr)) |
1491 | use_default = 0; |
1492 | |
1493 | switch (*line_ptr) { |
1494 | case 'c': |
1495 | case 'C': |
1496 | if (!display_in_cyl_units) |
1497 | value *= g_heads * g_sectors; |
1498 | break; |
1499 | case 'K': |
1500 | absolute = 1024; |
1501 | break; |
1502 | case 'k': |
1503 | absolute = 1000; |
1504 | break; |
1505 | case 'm': |
1506 | case 'M': |
1507 | absolute = 1000000; |
1508 | break; |
1509 | case 'g': |
1510 | case 'G': |
1511 | absolute = 1000000000; |
1512 | break; |
1513 | default: |
1514 | break; |
1515 | } |
1516 | if (absolute) { |
1517 | ullong bytes; |
1518 | unsigned long unit; |
1519 | |
1520 | bytes = (ullong) value * absolute; |
1521 | unit = sector_size * units_per_sector; |
1522 | bytes += unit/2; /* round */ |
1523 | bytes /= unit; |
1524 | value = bytes; |
1525 | } |
1526 | if (minus) |
1527 | value = -value; |
1528 | value += base; |
1529 | } else { |
1530 | value = atoi(line_ptr); |
1531 | while (isdigit(*line_ptr)) { |
1532 | line_ptr++; |
1533 | use_default = 0; |
1534 | } |
1535 | } |
1536 | if (use_default) { |
1537 | value = dflt; |
1538 | printf("Using default value %u\n", value); |
1539 | } |
1540 | if (value >= low && value <= high) |
1541 | break; |
1542 | printf("Value is out of range\n"); |
1543 | } |
1544 | return value; |
1545 | } |
1546 | |
1547 | static unsigned |
1548 | get_partition(int warn, unsigned max) |
1549 | { |
1550 | struct pte *pe; |
1551 | unsigned i; |
1552 | |
1553 | i = read_int(1, 0, max, 0, "Partition number") - 1; |
1554 | pe = &ptes[i]; |
1555 | |
1556 | if (warn) { |
1557 | if ((!LABEL_IS_SUN && !LABEL_IS_SGI && !pe->part_table->sys_ind) |
1558 | || (LABEL_IS_SUN && (!sunlabel->partitions[i].num_sectors || !sunlabel->infos[i].id)) |
1559 | || (LABEL_IS_SGI && !sgi_get_num_sectors(i)) |
1560 | ) { |
1561 | printf("Warning: partition %u has empty type\n", i+1); |
1562 | } |
1563 | } |
1564 | return i; |
1565 | } |
1566 | |
1567 | static int |
1568 | get_existing_partition(int warn, unsigned max) |
1569 | { |
1570 | int pno = -1; |
1571 | unsigned i; |
1572 | |
1573 | for (i = 0; i < max; i++) { |
1574 | struct pte *pe = &ptes[i]; |
1575 | struct partition *p = pe->part_table; |
1576 | |
1577 | if (p && !is_cleared_partition(p)) { |
1578 | if (pno >= 0) |
1579 | goto not_unique; |
1580 | pno = i; |
1581 | } |
1582 | } |
1583 | if (pno >= 0) { |
1584 | printf("Selected partition %u\n", pno+1); |
1585 | return pno; |
1586 | } |
1587 | printf("No partition is defined yet!\n"); |
1588 | return -1; |
1589 | |
1590 | not_unique: |
1591 | return get_partition(warn, max); |
1592 | } |
1593 | |
1594 | static int |
1595 | get_nonexisting_partition(int warn, unsigned max) |
1596 | { |
1597 | int pno = -1; |
1598 | unsigned i; |
1599 | |
1600 | for (i = 0; i < max; i++) { |
1601 | struct pte *pe = &ptes[i]; |
1602 | struct partition *p = pe->part_table; |
1603 | |
1604 | if (p && is_cleared_partition(p)) { |
1605 | if (pno >= 0) |
1606 | goto not_unique; |
1607 | pno = i; |
1608 | } |
1609 | } |
1610 | if (pno >= 0) { |
1611 | printf("Selected partition %u\n", pno+1); |
1612 | return pno; |
1613 | } |
1614 | printf("All primary partitions have been defined already!\n"); |
1615 | return -1; |
1616 | |
1617 | not_unique: |
1618 | return get_partition(warn, max); |
1619 | } |
1620 | |
1621 | |
1622 | static void |
1623 | change_units(void) |
1624 | { |
1625 | display_in_cyl_units = !display_in_cyl_units; |
1626 | update_units(); |
1627 | printf("Changing display/entry units to %s\n", |
1628 | str_units(PLURAL)); |
1629 | } |
1630 | |
1631 | static void |
1632 | toggle_active(int i) |
1633 | { |
1634 | struct pte *pe = &ptes[i]; |
1635 | struct partition *p = pe->part_table; |
1636 | |
1637 | if (IS_EXTENDED(p->sys_ind) && !p->boot_ind) |
1638 | printf("WARNING: Partition %u is an extended partition\n", i + 1); |
1639 | p->boot_ind = (p->boot_ind ? 0 : ACTIVE_FLAG); |
1640 | pe->changed = 1; |
1641 | } |
1642 | |
1643 | static void |
1644 | toggle_dos_compatibility_flag(void) |
1645 | { |
1646 | dos_compatible_flag = 1 - dos_compatible_flag; |
1647 | if (dos_compatible_flag) { |
1648 | sector_offset = g_sectors; |
1649 | printf("DOS Compatibility flag is set\n"); |
1650 | } else { |
1651 | sector_offset = 1; |
1652 | printf("DOS Compatibility flag is not set\n"); |
1653 | } |
1654 | } |
1655 | |
1656 | static void |
1657 | delete_partition(int i) |
1658 | { |
1659 | struct pte *pe = &ptes[i]; |
1660 | struct partition *p = pe->part_table; |
1661 | struct partition *q = pe->ext_pointer; |
1662 | |
1663 | /* Note that for the fifth partition (i == 4) we don't actually |
1664 | * decrement partitions. |
1665 | */ |
1666 | |
1667 | if (warn_geometry()) |
1668 | return; /* C/H/S not set */ |
1669 | pe->changed = 1; |
1670 | |
1671 | if (LABEL_IS_SUN) { |
1672 | sun_delete_partition(i); |
1673 | return; |
1674 | } |
1675 | if (LABEL_IS_SGI) { |
1676 | sgi_delete_partition(i); |
1677 | return; |
1678 | } |
1679 | |
1680 | if (i < 4) { |
1681 | if (IS_EXTENDED(p->sys_ind) && i == ext_index) { |
1682 | g_partitions = 4; |
1683 | ptes[ext_index].ext_pointer = NULL; |
1684 | extended_offset = 0; |
1685 | } |
1686 | clear_partition(p); |
1687 | return; |
1688 | } |
1689 | |
1690 | if (!q->sys_ind && i > 4) { |
1691 | /* the last one in the chain - just delete */ |
1692 | --g_partitions; |
1693 | --i; |
1694 | clear_partition(ptes[i].ext_pointer); |
1695 | ptes[i].changed = 1; |
1696 | } else { |
1697 | /* not the last one - further ones will be moved down */ |
1698 | if (i > 4) { |
1699 | /* delete this link in the chain */ |
1700 | p = ptes[i-1].ext_pointer; |
1701 | *p = *q; |
1702 | set_start_sect(p, get_start_sect(q)); |
1703 | set_nr_sects(p, get_nr_sects(q)); |
1704 | ptes[i-1].changed = 1; |
1705 | } else if (g_partitions > 5) { /* 5 will be moved to 4 */ |
1706 | /* the first logical in a longer chain */ |
1707 | pe = &ptes[5]; |
1708 | |
1709 | if (pe->part_table) /* prevent SEGFAULT */ |
1710 | set_start_sect(pe->part_table, |
1711 | get_partition_start(pe) - |
1712 | extended_offset); |
1713 | pe->offset = extended_offset; |
1714 | pe->changed = 1; |
1715 | } |
1716 | |
1717 | if (g_partitions > 5) { |
1718 | g_partitions--; |
1719 | while (i < g_partitions) { |
1720 | ptes[i] = ptes[i+1]; |
1721 | i++; |
1722 | } |
1723 | } else |
1724 | /* the only logical: clear only */ |
1725 | clear_partition(ptes[i].part_table); |
1726 | } |
1727 | } |
1728 | |
1729 | static void |
1730 | change_sysid(void) |
1731 | { |
1732 | int i, sys, origsys; |
1733 | struct partition *p; |
1734 | |
1735 | /* If sgi_label then don't use get_existing_partition, |
1736 | let the user select a partition, since get_existing_partition() |
1737 | only works for Linux like partition tables. */ |
1738 | if (!LABEL_IS_SGI) { |
1739 | i = get_existing_partition(0, g_partitions); |
1740 | } else { |
1741 | i = get_partition(0, g_partitions); |
1742 | } |
1743 | if (i == -1) |
1744 | return; |
1745 | p = ptes[i].part_table; |
1746 | origsys = sys = get_sysid(i); |
1747 | |
1748 | /* if changing types T to 0 is allowed, then |
1749 | the reverse change must be allowed, too */ |
1750 | if (!sys && !LABEL_IS_SGI && !LABEL_IS_SUN && !get_nr_sects(p)) { |
1751 | printf("Partition %u does not exist yet!\n", i + 1); |
1752 | return; |
1753 | } |
1754 | while (1) { |
1755 | sys = read_hex(get_sys_types()); |
1756 | |
1757 | if (!sys && !LABEL_IS_SGI && !LABEL_IS_SUN) { |
1758 | printf("Type 0 means free space to many systems\n" |
1759 | "(but not to Linux). Having partitions of\n" |
1760 | "type 0 is probably unwise.\n"); |
1761 | /* break; */ |
1762 | } |
1763 | |
1764 | if (!LABEL_IS_SUN && !LABEL_IS_SGI) { |
1765 | if (IS_EXTENDED(sys) != IS_EXTENDED(p->sys_ind)) { |
1766 | printf("You cannot change a partition into" |
1767 | " an extended one or vice versa\n"); |
1768 | break; |
1769 | } |
1770 | } |
1771 | |
1772 | if (sys < 256) { |
1773 | #if ENABLE_FEATURE_SUN_LABEL |
1774 | if (LABEL_IS_SUN && i == 2 && sys != SUN_WHOLE_DISK) |
1775 | printf("Consider leaving partition 3 " |
1776 | "as Whole disk (5),\n" |
1777 | "as SunOS/Solaris expects it and " |
1778 | "even Linux likes it\n\n"); |
1779 | #endif |
1780 | #if ENABLE_FEATURE_SGI_LABEL |
1781 | if (LABEL_IS_SGI && |
1782 | ( |
1783 | (i == 10 && sys != SGI_ENTIRE_DISK) || |
1784 | (i == 8 && sys != 0) |
1785 | ) |
1786 | ) { |
1787 | printf("Consider leaving partition 9 " |
1788 | "as volume header (0),\nand " |
1789 | "partition 11 as entire volume (6)" |
1790 | "as IRIX expects it\n\n"); |
1791 | } |
1792 | #endif |
1793 | if (sys == origsys) |
1794 | break; |
1795 | if (LABEL_IS_SUN) { |
1796 | sun_change_sysid(i, sys); |
1797 | } else if (LABEL_IS_SGI) { |
1798 | sgi_change_sysid(i, sys); |
1799 | } else |
1800 | p->sys_ind = sys; |
1801 | |
1802 | printf("Changed system type of partition %u " |
1803 | "to %x (%s)\n", i + 1, sys, |
1804 | partition_type(sys)); |
1805 | ptes[i].changed = 1; |
1806 | //if (is_dos_partition(origsys) || is_dos_partition(sys)) |
1807 | // dos_changed = 1; |
1808 | break; |
1809 | } |
1810 | } |
1811 | } |
1812 | #endif /* FEATURE_FDISK_WRITABLE */ |
1813 | |
1814 | |
1815 | /* check_consistency() and linear2chs() added Sat Mar 6 12:28:16 1993, |
1816 | * faith@cs.unc.edu, based on code fragments from pfdisk by Gordon W. Ross, |
1817 | * Jan. 1990 (version 1.2.1 by Gordon W. Ross Aug. 1990; Modified by S. |
1818 | * Lubkin Oct. 1991). */ |
1819 | |
1820 | static void |
1821 | linear2chs(unsigned ls, unsigned *c, unsigned *h, unsigned *s) |
1822 | { |
1823 | int spc = g_heads * g_sectors; |
1824 | |
1825 | *c = ls / spc; |
1826 | ls = ls % spc; |
1827 | *h = ls / g_sectors; |
1828 | *s = ls % g_sectors + 1; /* sectors count from 1 */ |
1829 | } |
1830 | |
1831 | static void |
1832 | check_consistency(const struct partition *p, int partition) |
1833 | { |
1834 | unsigned pbc, pbh, pbs; /* physical beginning c, h, s */ |
1835 | unsigned pec, peh, pes; /* physical ending c, h, s */ |
1836 | unsigned lbc, lbh, lbs; /* logical beginning c, h, s */ |
1837 | unsigned lec, leh, les; /* logical ending c, h, s */ |
1838 | |
1839 | if (!g_heads || !g_sectors || (partition >= 4)) |
1840 | return; /* do not check extended partitions */ |
1841 | |
1842 | /* physical beginning c, h, s */ |
1843 | pbc = (p->cyl & 0xff) | ((p->sector << 2) & 0x300); |
1844 | pbh = p->head; |
1845 | pbs = p->sector & 0x3f; |
1846 | |
1847 | /* physical ending c, h, s */ |
1848 | pec = (p->end_cyl & 0xff) | ((p->end_sector << 2) & 0x300); |
1849 | peh = p->end_head; |
1850 | pes = p->end_sector & 0x3f; |
1851 | |
1852 | /* compute logical beginning (c, h, s) */ |
1853 | linear2chs(get_start_sect(p), &lbc, &lbh, &lbs); |
1854 | |
1855 | /* compute logical ending (c, h, s) */ |
1856 | linear2chs(get_start_sect(p) + get_nr_sects(p) - 1, &lec, &leh, &les); |
1857 | |
1858 | /* Same physical / logical beginning? */ |
1859 | if (g_cylinders <= 1024 && (pbc != lbc || pbh != lbh || pbs != lbs)) { |
1860 | printf("Partition %u has different physical/logical " |
1861 | "beginnings (non-Linux?):\n", partition + 1); |
1862 | printf(" phys=(%u, %u, %u) ", pbc, pbh, pbs); |
1863 | printf("logical=(%u, %u, %u)\n", lbc, lbh, lbs); |
1864 | } |
1865 | |
1866 | /* Same physical / logical ending? */ |
1867 | if (g_cylinders <= 1024 && (pec != lec || peh != leh || pes != les)) { |
1868 | printf("Partition %u has different physical/logical " |
1869 | "endings:\n", partition + 1); |
1870 | printf(" phys=(%u, %u, %u) ", pec, peh, pes); |
1871 | printf("logical=(%u, %u, %u)\n", lec, leh, les); |
1872 | } |
1873 | |
1874 | /* Ending on cylinder boundary? */ |
1875 | if (peh != (g_heads - 1) || pes != g_sectors) { |
1876 | printf("Partition %u does not end on cylinder boundary\n", |
1877 | partition + 1); |
1878 | } |
1879 | } |
1880 | |
1881 | static void |
1882 | list_disk_geometry(void) |
1883 | { |
1884 | ullong bytes = ((ullong)total_number_of_sectors << 9); |
1885 | long megabytes = bytes / 1000000; |
1886 | |
1887 | if (megabytes < 10000) |
1888 | printf("\nDisk %s: %lu MB, %llu bytes\n", |
1889 | disk_device, megabytes, bytes); |
1890 | else |
1891 | printf("\nDisk %s: %lu.%lu GB, %llu bytes\n", |
1892 | disk_device, megabytes/1000, (megabytes/100)%10, bytes); |
1893 | printf("%u heads, %u sectors/track, %u cylinders", |
1894 | g_heads, g_sectors, g_cylinders); |
1895 | if (units_per_sector == 1) |
1896 | printf(", total %"SECT_FMT"u sectors", |
1897 | total_number_of_sectors / (sector_size/512)); |
1898 | printf("\nUnits = %s of %u * %u = %u bytes\n\n", |
1899 | str_units(PLURAL), |
1900 | units_per_sector, sector_size, units_per_sector * sector_size); |
1901 | } |
1902 | |
1903 | /* |
1904 | * Check whether partition entries are ordered by their starting positions. |
1905 | * Return 0 if OK. Return i if partition i should have been earlier. |
1906 | * Two separate checks: primary and logical partitions. |
1907 | */ |
1908 | static int |
1909 | wrong_p_order(int *prev) |
1910 | { |
1911 | const struct pte *pe; |
1912 | const struct partition *p; |
1913 | sector_t last_p_start_pos = 0, p_start_pos; |
1914 | unsigned i, last_i = 0; |
1915 | |
1916 | for (i = 0; i < g_partitions; i++) { |
1917 | if (i == 4) { |
1918 | last_i = 4; |
1919 | last_p_start_pos = 0; |
1920 | } |
1921 | pe = &ptes[i]; |
1922 | p = pe->part_table; |
1923 | if (p->sys_ind) { |
1924 | p_start_pos = get_partition_start(pe); |
1925 | |
1926 | if (last_p_start_pos > p_start_pos) { |
1927 | if (prev) |
1928 | *prev = last_i; |
1929 | return i; |
1930 | } |
1931 | |
1932 | last_p_start_pos = p_start_pos; |
1933 | last_i = i; |
1934 | } |
1935 | } |
1936 | return 0; |
1937 | } |
1938 | |
1939 | #if ENABLE_FEATURE_FDISK_ADVANCED |
1940 | /* |
1941 | * Fix the chain of logicals. |
1942 | * extended_offset is unchanged, the set of sectors used is unchanged |
1943 | * The chain is sorted so that sectors increase, and so that |
1944 | * starting sectors increase. |
1945 | * |
1946 | * After this it may still be that cfdisk doesnt like the table. |
1947 | * (This is because cfdisk considers expanded parts, from link to |
1948 | * end of partition, and these may still overlap.) |
1949 | * Now |
1950 | * sfdisk /dev/hda > ohda; sfdisk /dev/hda < ohda |
1951 | * may help. |
1952 | */ |
1953 | static void |
1954 | fix_chain_of_logicals(void) |
1955 | { |
1956 | int j, oj, ojj, sj, sjj; |
1957 | struct partition *pj,*pjj,tmp; |
1958 | |
1959 | /* Stage 1: sort sectors but leave sector of part 4 */ |
1960 | /* (Its sector is the global extended_offset.) */ |
1961 | stage1: |
1962 | for (j = 5; j < g_partitions - 1; j++) { |
1963 | oj = ptes[j].offset; |
1964 | ojj = ptes[j+1].offset; |
1965 | if (oj > ojj) { |
1966 | ptes[j].offset = ojj; |
1967 | ptes[j+1].offset = oj; |
1968 | pj = ptes[j].part_table; |
1969 | set_start_sect(pj, get_start_sect(pj)+oj-ojj); |
1970 | pjj = ptes[j+1].part_table; |
1971 | set_start_sect(pjj, get_start_sect(pjj)+ojj-oj); |
1972 | set_start_sect(ptes[j-1].ext_pointer, |
1973 | ojj-extended_offset); |
1974 | set_start_sect(ptes[j].ext_pointer, |
1975 | oj-extended_offset); |
1976 | goto stage1; |
1977 | } |
1978 | } |
1979 | |
1980 | /* Stage 2: sort starting sectors */ |
1981 | stage2: |
1982 | for (j = 4; j < g_partitions - 1; j++) { |
1983 | pj = ptes[j].part_table; |
1984 | pjj = ptes[j+1].part_table; |
1985 | sj = get_start_sect(pj); |
1986 | sjj = get_start_sect(pjj); |
1987 | oj = ptes[j].offset; |
1988 | ojj = ptes[j+1].offset; |
1989 | if (oj+sj > ojj+sjj) { |
1990 | tmp = *pj; |
1991 | *pj = *pjj; |
1992 | *pjj = tmp; |
1993 | set_start_sect(pj, ojj+sjj-oj); |
1994 | set_start_sect(pjj, oj+sj-ojj); |
1995 | goto stage2; |
1996 | } |
1997 | } |
1998 | |
1999 | /* Probably something was changed */ |
2000 | for (j = 4; j < g_partitions; j++) |
2001 | ptes[j].changed = 1; |
2002 | } |
2003 | |
2004 | |
2005 | static void |
2006 | fix_partition_table_order(void) |
2007 | { |
2008 | struct pte *pei, *pek; |
2009 | int i,k; |
2010 | |
2011 | if (!wrong_p_order(NULL)) { |
2012 | printf("Ordering is already correct\n\n"); |
2013 | return; |
2014 | } |
2015 | |
2016 | while ((i = wrong_p_order(&k)) != 0 && i < 4) { |
2017 | /* partition i should have come earlier, move it */ |
2018 | /* We have to move data in the MBR */ |
2019 | struct partition *pi, *pk, *pe, pbuf; |
2020 | pei = &ptes[i]; |
2021 | pek = &ptes[k]; |
2022 | |
2023 | pe = pei->ext_pointer; |
2024 | pei->ext_pointer = pek->ext_pointer; |
2025 | pek->ext_pointer = pe; |
2026 | |
2027 | pi = pei->part_table; |
2028 | pk = pek->part_table; |
2029 | |
2030 | memmove(&pbuf, pi, sizeof(struct partition)); |
2031 | memmove(pi, pk, sizeof(struct partition)); |
2032 | memmove(pk, &pbuf, sizeof(struct partition)); |
2033 | |
2034 | pei->changed = pek->changed = 1; |
2035 | } |
2036 | |
2037 | if (i) |
2038 | fix_chain_of_logicals(); |
2039 | |
2040 | printf("Done.\n"); |
2041 | |
2042 | } |
2043 | #endif |
2044 | |
2045 | static void |
2046 | list_table(int xtra) |
2047 | { |
2048 | const struct partition *p; |
2049 | int i, w; |
2050 | |
2051 | if (LABEL_IS_SUN) { |
2052 | sun_list_table(xtra); |
2053 | return; |
2054 | } |
2055 | if (LABEL_IS_SUN) { |
2056 | sgi_list_table(xtra); |
2057 | return; |
2058 | } |
2059 | |
2060 | list_disk_geometry(); |
2061 | |
2062 | if (LABEL_IS_OSF) { |
2063 | xbsd_print_disklabel(xtra); |
2064 | return; |
2065 | } |
2066 | |
2067 | /* Heuristic: we list partition 3 of /dev/foo as /dev/foo3, |
2068 | but if the device name ends in a digit, say /dev/foo1, |
2069 | then the partition is called /dev/foo1p3. */ |
2070 | w = strlen(disk_device); |
2071 | if (w && isdigit(disk_device[w-1])) |
2072 | w++; |
2073 | if (w < 5) |
2074 | w = 5; |
2075 | |
2076 | // 1 12345678901 12345678901 12345678901 12 |
2077 | printf("%*s Boot Start End Blocks Id System\n", |
2078 | w+1, "Device"); |
2079 | |
2080 | for (i = 0; i < g_partitions; i++) { |
2081 | const struct pte *pe = &ptes[i]; |
2082 | sector_t psects; |
2083 | sector_t pblocks; |
2084 | unsigned podd; |
2085 | |
2086 | p = pe->part_table; |
2087 | if (!p || is_cleared_partition(p)) |
2088 | continue; |
2089 | |
2090 | psects = get_nr_sects(p); |
2091 | pblocks = psects; |
2092 | podd = 0; |
2093 | |
2094 | if (sector_size < 1024) { |
2095 | pblocks /= (1024 / sector_size); |
2096 | podd = psects % (1024 / sector_size); |
2097 | } |
2098 | if (sector_size > 1024) |
2099 | pblocks *= (sector_size / 1024); |
2100 | |
2101 | printf("%s %c %11"SECT_FMT"u %11"SECT_FMT"u %11"SECT_FMT"u%c %2x %s\n", |
2102 | partname(disk_device, i+1, w+2), |
2103 | !p->boot_ind ? ' ' : p->boot_ind == ACTIVE_FLAG /* boot flag */ |
2104 | ? '*' : '?', |
2105 | cround(get_partition_start(pe)), /* start */ |
2106 | cround(get_partition_start(pe) + psects /* end */ |
2107 | - (psects ? 1 : 0)), |
2108 | pblocks, podd ? '+' : ' ', /* odd flag on end */ |
2109 | p->sys_ind, /* type id */ |
2110 | partition_type(p->sys_ind)); /* type name */ |
2111 | |
2112 | check_consistency(p, i); |
2113 | } |
2114 | |
2115 | /* Is partition table in disk order? It need not be, but... */ |
2116 | /* partition table entries are not checked for correct order |
2117 | * if this is a sgi, sun or aix labeled disk... */ |
2118 | if (LABEL_IS_DOS && wrong_p_order(NULL)) { |
2119 | /* FIXME */ |
2120 | printf("\nPartition table entries are not in disk order\n"); |
2121 | } |
2122 | } |
2123 | |
2124 | #if ENABLE_FEATURE_FDISK_ADVANCED |
2125 | static void |
2126 | x_list_table(int extend) |
2127 | { |
2128 | const struct pte *pe; |
2129 | const struct partition *p; |
2130 | int i; |
2131 | |
2132 | printf("\nDisk %s: %u heads, %u sectors, %u cylinders\n\n", |
2133 | disk_device, g_heads, g_sectors, g_cylinders); |
2134 | printf("Nr AF Hd Sec Cyl Hd Sec Cyl Start Size ID\n"); |
2135 | for (i = 0; i < g_partitions; i++) { |
2136 | pe = &ptes[i]; |
2137 | p = (extend ? pe->ext_pointer : pe->part_table); |
2138 | if (p != NULL) { |
2139 | printf("%2u %02x%4u%4u%5u%4u%4u%5u%11"SECT_FMT"u%11"SECT_FMT"u %02x\n", |
2140 | i + 1, p->boot_ind, p->head, |
2141 | sector(p->sector), |
2142 | cylinder(p->sector, p->cyl), p->end_head, |
2143 | sector(p->end_sector), |
2144 | cylinder(p->end_sector, p->end_cyl), |
2145 | get_start_sect(p), get_nr_sects(p), |
2146 | p->sys_ind); |
2147 | if (p->sys_ind) |
2148 | check_consistency(p, i); |
2149 | } |
2150 | } |
2151 | } |
2152 | #endif |
2153 | |
2154 | #if ENABLE_FEATURE_FDISK_WRITABLE |
2155 | static void |
2156 | fill_bounds(sector_t *first, sector_t *last) |
2157 | { |
2158 | unsigned i; |
2159 | const struct pte *pe = &ptes[0]; |
2160 | const struct partition *p; |
2161 | |
2162 | for (i = 0; i < g_partitions; pe++,i++) { |
2163 | p = pe->part_table; |
2164 | if (!p->sys_ind || IS_EXTENDED(p->sys_ind)) { |
2165 | first[i] = 0xffffffff; |
2166 | last[i] = 0; |
2167 | } else { |
2168 | first[i] = get_partition_start(pe); |
2169 | last[i] = first[i] + get_nr_sects(p) - 1; |
2170 | } |
2171 | } |
2172 | } |
2173 | |
2174 | static void |
2175 | check(int n, unsigned h, unsigned s, unsigned c, sector_t start) |
2176 | { |
2177 | sector_t total, real_s, real_c; |
2178 | |
2179 | real_s = sector(s) - 1; |
2180 | real_c = cylinder(s, c); |
2181 | total = (real_c * g_sectors + real_s) * g_heads + h; |
2182 | if (!total) |
2183 | printf("Partition %u contains sector 0\n", n); |
2184 | if (h >= g_heads) |
2185 | printf("Partition %u: head %u greater than maximum %u\n", |
2186 | n, h + 1, g_heads); |
2187 | if (real_s >= g_sectors) |
2188 | printf("Partition %u: sector %u greater than " |
2189 | "maximum %u\n", n, s, g_sectors); |
2190 | if (real_c >= g_cylinders) |
2191 | printf("Partition %u: cylinder %"SECT_FMT"u greater than " |
2192 | "maximum %u\n", n, real_c + 1, g_cylinders); |
2193 | if (g_cylinders <= 1024 && start != total) |
2194 | printf("Partition %u: previous sectors %"SECT_FMT"u disagrees with " |
2195 | "total %"SECT_FMT"u\n", n, start, total); |
2196 | } |
2197 | |
2198 | static void |
2199 | verify(void) |
2200 | { |
2201 | int i, j; |
2202 | sector_t total = 1; |
2203 | sector_t first[g_partitions], last[g_partitions]; |
2204 | struct partition *p; |
2205 | |
2206 | if (warn_geometry()) |
2207 | return; |
2208 | |
2209 | if (LABEL_IS_SUN) { |
2210 | verify_sun(); |
2211 | return; |
2212 | } |
2213 | if (LABEL_IS_SGI) { |
2214 | verify_sgi(1); |
2215 | return; |
2216 | } |
2217 | |
2218 | fill_bounds(first, last); |
2219 | for (i = 0; i < g_partitions; i++) { |
2220 | struct pte *pe = &ptes[i]; |
2221 | |
2222 | p = pe->part_table; |
2223 | if (p->sys_ind && !IS_EXTENDED(p->sys_ind)) { |
2224 | check_consistency(p, i); |
2225 | if (get_partition_start(pe) < first[i]) |
2226 | printf("Warning: bad start-of-data in " |
2227 | "partition %u\n", i + 1); |
2228 | check(i + 1, p->end_head, p->end_sector, p->end_cyl, |
2229 | last[i]); |
2230 | total += last[i] + 1 - first[i]; |
2231 | for (j = 0; j < i; j++) { |
2232 | if ((first[i] >= first[j] && first[i] <= last[j]) |
2233 | || ((last[i] <= last[j] && last[i] >= first[j]))) { |
2234 | printf("Warning: partition %u overlaps " |
2235 | "partition %u\n", j + 1, i + 1); |
2236 | total += first[i] >= first[j] ? |
2237 | first[i] : first[j]; |
2238 | total -= last[i] <= last[j] ? |
2239 | last[i] : last[j]; |
2240 | } |
2241 | } |
2242 | } |
2243 | } |
2244 | |
2245 | if (extended_offset) { |
2246 | struct pte *pex = &ptes[ext_index]; |
2247 | sector_t e_last = get_start_sect(pex->part_table) + |
2248 | get_nr_sects(pex->part_table) - 1; |
2249 | |
2250 | for (i = 4; i < g_partitions; i++) { |
2251 | total++; |
2252 | p = ptes[i].part_table; |
2253 | if (!p->sys_ind) { |
2254 | if (i != 4 || i + 1 < g_partitions) |
2255 | printf("Warning: partition %u " |
2256 | "is empty\n", i + 1); |
2257 | } else if (first[i] < extended_offset || last[i] > e_last) { |
2258 | printf("Logical partition %u not entirely in " |
2259 | "partition %u\n", i + 1, ext_index + 1); |
2260 | } |
2261 | } |
2262 | } |
2263 | |
2264 | if (total > g_heads * g_sectors * g_cylinders) |
2265 | printf("Total allocated sectors %u greater than the maximum " |
2266 | "%u\n", total, g_heads * g_sectors * g_cylinders); |
2267 | else { |
2268 | total = g_heads * g_sectors * g_cylinders - total; |
2269 | if (total != 0) |
2270 | printf("%"SECT_FMT"u unallocated sectors\n", total); |
2271 | } |
2272 | } |
2273 | |
2274 | static void |
2275 | add_partition(int n, int sys) |
2276 | { |
2277 | char mesg[256]; /* 48 does not suffice in Japanese */ |
2278 | int i, num_read = 0; |
2279 | struct partition *p = ptes[n].part_table; |
2280 | struct partition *q = ptes[ext_index].part_table; |
2281 | sector_t limit, temp; |
2282 | sector_t start, stop = 0; |
2283 | sector_t first[g_partitions], last[g_partitions]; |
2284 | |
2285 | if (p && p->sys_ind) { |
2286 | printf(msg_part_already_defined, n + 1); |
2287 | return; |
2288 | } |
2289 | fill_bounds(first, last); |
2290 | if (n < 4) { |
2291 | start = sector_offset; |
2292 | if (display_in_cyl_units || !total_number_of_sectors) |
2293 | limit = (sector_t) g_heads * g_sectors * g_cylinders - 1; |
2294 | else |
2295 | limit = total_number_of_sectors - 1; |
2296 | if (extended_offset) { |
2297 | first[ext_index] = extended_offset; |
2298 | last[ext_index] = get_start_sect(q) + |
2299 | get_nr_sects(q) - 1; |
2300 | } |
2301 | } else { |
2302 | start = extended_offset + sector_offset; |
2303 | limit = get_start_sect(q) + get_nr_sects(q) - 1; |
2304 | } |
2305 | if (display_in_cyl_units) |
2306 | for (i = 0; i < g_partitions; i++) |
2307 | first[i] = (cround(first[i]) - 1) * units_per_sector; |
2308 | |
2309 | snprintf(mesg, sizeof(mesg), "First %s", str_units(SINGULAR)); |
2310 | do { |
2311 | temp = start; |
2312 | for (i = 0; i < g_partitions; i++) { |
2313 | int lastplusoff; |
2314 | |
2315 | if (start == ptes[i].offset) |
2316 | start += sector_offset; |
2317 | lastplusoff = last[i] + ((n < 4) ? 0 : sector_offset); |
2318 | if (start >= first[i] && start <= lastplusoff) |
2319 | start = lastplusoff + 1; |
2320 | } |
2321 | if (start > limit) |
2322 | break; |
2323 | if (start >= temp+units_per_sector && num_read) { |
2324 | printf("Sector %"SECT_FMT"u is already allocated\n", temp); |
2325 | temp = start; |
2326 | num_read = 0; |
2327 | } |
2328 | if (!num_read && start == temp) { |
2329 | sector_t saved_start; |
2330 | |
2331 | saved_start = start; |
2332 | start = read_int(cround(saved_start), cround(saved_start), cround(limit), |
2333 | 0, mesg); |
2334 | if (display_in_cyl_units) { |
2335 | start = (start - 1) * units_per_sector; |
2336 | if (start < saved_start) |
2337 | start = saved_start; |
2338 | } |
2339 | num_read = 1; |
2340 | } |
2341 | } while (start != temp || !num_read); |
2342 | if (n > 4) { /* NOT for fifth partition */ |
2343 | struct pte *pe = &ptes[n]; |
2344 | |
2345 | pe->offset = start - sector_offset; |
2346 | if (pe->offset == extended_offset) { /* must be corrected */ |
2347 | pe->offset++; |
2348 | if (sector_offset == 1) |
2349 | start++; |
2350 | } |
2351 | } |
2352 | |
2353 | for (i = 0; i < g_partitions; i++) { |
2354 | struct pte *pe = &ptes[i]; |
2355 | |
2356 | if (start < pe->offset && limit >= pe->offset) |
2357 | limit = pe->offset - 1; |
2358 | if (start < first[i] && limit >= first[i]) |
2359 | limit = first[i] - 1; |
2360 | } |
2361 | if (start > limit) { |
2362 | printf("No free sectors available\n"); |
2363 | if (n > 4) |
2364 | g_partitions--; |
2365 | return; |
2366 | } |
2367 | if (cround(start) == cround(limit)) { |
2368 | stop = limit; |
2369 | } else { |
2370 | snprintf(mesg, sizeof(mesg), |
2371 | "Last %s or +size or +sizeM or +sizeK", |
2372 | str_units(SINGULAR)); |
2373 | stop = read_int(cround(start), cround(limit), cround(limit), |
2374 | cround(start), mesg); |
2375 | if (display_in_cyl_units) { |
2376 | stop = stop * units_per_sector - 1; |
2377 | if (stop >limit) |
2378 | stop = limit; |
2379 | } |
2380 | } |
2381 | |
2382 | set_partition(n, 0, start, stop, sys); |
2383 | if (n > 4) |
2384 | set_partition(n - 1, 1, ptes[n].offset, stop, EXTENDED); |
2385 | |
2386 | if (IS_EXTENDED(sys)) { |
2387 | struct pte *pe4 = &ptes[4]; |
2388 | struct pte *pen = &ptes[n]; |
2389 | |
2390 | ext_index = n; |
2391 | pen->ext_pointer = p; |
2392 | pe4->offset = extended_offset = start; |
2393 | pe4->sectorbuffer = xzalloc(sector_size); |
2394 | pe4->part_table = pt_offset(pe4->sectorbuffer, 0); |
2395 | pe4->ext_pointer = pe4->part_table + 1; |
2396 | pe4->changed = 1; |
2397 | g_partitions = 5; |
2398 | } |
2399 | } |
2400 | |
2401 | static void |
2402 | add_logical(void) |
2403 | { |
2404 | if (g_partitions > 5 || ptes[4].part_table->sys_ind) { |
2405 | struct pte *pe = &ptes[g_partitions]; |
2406 | |
2407 | pe->sectorbuffer = xzalloc(sector_size); |
2408 | pe->part_table = pt_offset(pe->sectorbuffer, 0); |
2409 | pe->ext_pointer = pe->part_table + 1; |
2410 | pe->offset = 0; |
2411 | pe->changed = 1; |
2412 | g_partitions++; |
2413 | } |
2414 | add_partition(g_partitions - 1, LINUX_NATIVE); |
2415 | } |
2416 | |
2417 | static void |
2418 | new_partition(void) |
2419 | { |
2420 | int i, free_primary = 0; |
2421 | |
2422 | if (warn_geometry()) |
2423 | return; |
2424 | |
2425 | if (LABEL_IS_SUN) { |
2426 | add_sun_partition(get_partition(0, g_partitions), LINUX_NATIVE); |
2427 | return; |
2428 | } |
2429 | if (LABEL_IS_SGI) { |
2430 | sgi_add_partition(get_partition(0, g_partitions), LINUX_NATIVE); |
2431 | return; |
2432 | } |
2433 | if (LABEL_IS_AIX) { |
2434 | printf("Sorry - this fdisk cannot handle AIX disk labels.\n" |
2435 | "If you want to add DOS-type partitions, create a new empty DOS partition\n" |
2436 | "table first (use 'o'). This will destroy the present disk contents.\n"); |
2437 | return; |
2438 | } |
2439 | |
2440 | for (i = 0; i < 4; i++) |
2441 | free_primary += !ptes[i].part_table->sys_ind; |
2442 | |
2443 | if (!free_primary && g_partitions >= MAXIMUM_PARTS) { |
2444 | printf("The maximum number of partitions has been created\n"); |
2445 | return; |
2446 | } |
2447 | |
2448 | if (!free_primary) { |
2449 | if (extended_offset) |
2450 | add_logical(); |
2451 | else |
2452 | printf("You must delete some partition and add " |
2453 | "an extended partition first\n"); |
2454 | } else { |
2455 | char c, line[80]; |
2456 | snprintf(line, sizeof(line), |
2457 | "Command action\n" |
2458 | " %s\n" |
2459 | " p primary partition (1-4)\n", |
2460 | (extended_offset ? |
2461 | "l logical (5 or over)" : "e extended")); |
2462 | while (1) { |
2463 | c = read_nonempty(line); |
2464 | if (c == 'p' || c == 'P') { |
2465 | i = get_nonexisting_partition(0, 4); |
2466 | if (i >= 0) |
2467 | add_partition(i, LINUX_NATIVE); |
2468 | return; |
2469 | } |
2470 | if (c == 'l' && extended_offset) { |
2471 | add_logical(); |
2472 | return; |
2473 | } |
2474 | if (c == 'e' && !extended_offset) { |
2475 | i = get_nonexisting_partition(0, 4); |
2476 | if (i >= 0) |
2477 | add_partition(i, EXTENDED); |
2478 | return; |
2479 | } |
2480 | printf("Invalid partition number " |
2481 | "for type '%c'\n", c); |
2482 | } |
2483 | } |
2484 | } |
2485 | |
2486 | static void |
2487 | write_table(void) |
2488 | { |
2489 | int i; |
2490 | |
2491 | if (LABEL_IS_DOS) { |
2492 | for (i = 0; i < 3; i++) |
2493 | if (ptes[i].changed) |
2494 | ptes[3].changed = 1; |
2495 | for (i = 3; i < g_partitions; i++) { |
2496 | struct pte *pe = &ptes[i]; |
2497 | |
2498 | if (pe->changed) { |
2499 | write_part_table_flag(pe->sectorbuffer); |
2500 | write_sector(pe->offset, pe->sectorbuffer); |
2501 | } |
2502 | } |
2503 | } |
2504 | else if (LABEL_IS_SGI) { |
2505 | /* no test on change? the printf below might be mistaken */ |
2506 | sgi_write_table(); |
2507 | } |
2508 | else if (LABEL_IS_SUN) { |
2509 | int needw = 0; |
2510 | |
2511 | for (i = 0; i < 8; i++) |
2512 | if (ptes[i].changed) |
2513 | needw = 1; |
2514 | if (needw) |
2515 | sun_write_table(); |
2516 | } |
2517 | |
2518 | printf("The partition table has been altered!\n\n"); |
2519 | reread_partition_table(1); |
2520 | } |
2521 | |
2522 | static void |
2523 | reread_partition_table(int leave) |
2524 | { |
2525 | int i; |
2526 | |
2527 | printf("Calling ioctl() to re-read partition table\n"); |
2528 | sync(); |
2529 | /* sleep(2); Huh? */ |
2530 | i = ioctl_or_perror(dev_fd, BLKRRPART, NULL, |
2531 | "WARNING: rereading partition table " |
2532 | "failed, kernel still uses old table"); |
2533 | #if 0 |
2534 | if (dos_changed) |
2535 | printf( |
2536 | "\nWARNING: If you have created or modified any DOS 6.x\n" |
2537 | "partitions, please see the fdisk manual page for additional\n" |
2538 | "information\n"); |
2539 | #endif |
2540 | |
2541 | if (leave) { |
2542 | if (ENABLE_FEATURE_CLEAN_UP) |
2543 | close_dev_fd(); |
2544 | exit(i != 0); |
2545 | } |
2546 | } |
2547 | #endif /* FEATURE_FDISK_WRITABLE */ |
2548 | |
2549 | #if ENABLE_FEATURE_FDISK_ADVANCED |
2550 | #define MAX_PER_LINE 16 |
2551 | static void |
2552 | print_buffer(char *pbuffer) |
2553 | { |
2554 | int i,l; |
2555 | |
2556 | for (i = 0, l = 0; i < sector_size; i++, l++) { |
2557 | if (l == 0) |
2558 | printf("0x%03X:", i); |
2559 | printf(" %02X", (unsigned char) pbuffer[i]); |
2560 | if (l == MAX_PER_LINE - 1) { |
2561 | bb_putchar('\n'); |
2562 | l = -1; |
2563 | } |
2564 | } |
2565 | if (l > 0) |
2566 | bb_putchar('\n'); |
2567 | bb_putchar('\n'); |
2568 | } |
2569 | |
2570 | static void |
2571 | print_raw(void) |
2572 | { |
2573 | int i; |
2574 | |
2575 | printf("Device: %s\n", disk_device); |
2576 | if (LABEL_IS_SGI || LABEL_IS_SUN) |
2577 | print_buffer(MBRbuffer); |
2578 | else { |
2579 | for (i = 3; i < g_partitions; i++) |
2580 | print_buffer(ptes[i].sectorbuffer); |
2581 | } |
2582 | } |
2583 | |
2584 | static void |
2585 | move_begin(unsigned i) |
2586 | { |
2587 | struct pte *pe = &ptes[i]; |
2588 | struct partition *p = pe->part_table; |
2589 | sector_t new, first; |
2590 | |
2591 | if (warn_geometry()) |
2592 | return; |
2593 | if (!p->sys_ind || !get_nr_sects(p) || IS_EXTENDED(p->sys_ind)) { |
2594 | printf("Partition %u has no data area\n", i + 1); |
2595 | return; |
2596 | } |
2597 | first = get_partition_start(pe); |
2598 | new = read_int(first, first, first + get_nr_sects(p) - 1, first, |
2599 | "New beginning of data") - pe->offset; |
2600 | |
2601 | if (new != get_nr_sects(p)) { |
2602 | first = get_nr_sects(p) + get_start_sect(p) - new; |
2603 | set_nr_sects(p, first); |
2604 | set_start_sect(p, new); |
2605 | pe->changed = 1; |
2606 | } |
2607 | } |
2608 | |
2609 | static void |
2610 | xselect(void) |
2611 | { |
2612 | char c; |
2613 | |
2614 | while (1) { |
2615 | bb_putchar('\n'); |
2616 | c = tolower(read_nonempty("Expert command (m for help): ")); |
2617 | switch (c) { |
2618 | case 'a': |
2619 | if (LABEL_IS_SUN) |
2620 | sun_set_alt_cyl(); |
2621 | break; |
2622 | case 'b': |
2623 | if (LABEL_IS_DOS) |
2624 | move_begin(get_partition(0, g_partitions)); |
2625 | break; |
2626 | case 'c': |
2627 | user_cylinders = g_cylinders = |
2628 | read_int(1, g_cylinders, 1048576, 0, |
2629 | "Number of cylinders"); |
2630 | if (LABEL_IS_SUN) |
2631 | sun_set_ncyl(g_cylinders); |
2632 | if (LABEL_IS_DOS) |
2633 | warn_cylinders(); |
2634 | break; |
2635 | case 'd': |
2636 | print_raw(); |
2637 | break; |
2638 | case 'e': |
2639 | if (LABEL_IS_SGI) |
2640 | sgi_set_xcyl(); |
2641 | else if (LABEL_IS_SUN) |
2642 | sun_set_xcyl(); |
2643 | else if (LABEL_IS_DOS) |
2644 | x_list_table(1); |
2645 | break; |
2646 | case 'f': |
2647 | if (LABEL_IS_DOS) |
2648 | fix_partition_table_order(); |
2649 | break; |
2650 | case 'g': |
2651 | #if ENABLE_FEATURE_SGI_LABEL |
2652 | create_sgilabel(); |
2653 | #endif |
2654 | break; |
2655 | case 'h': |
2656 | user_heads = g_heads = read_int(1, g_heads, 256, 0, |
2657 | "Number of heads"); |
2658 | update_units(); |
2659 | break; |
2660 | case 'i': |
2661 | if (LABEL_IS_SUN) |
2662 | sun_set_ilfact(); |
2663 | break; |
2664 | case 'o': |
2665 | if (LABEL_IS_SUN) |
2666 | sun_set_rspeed(); |
2667 | break; |
2668 | case 'p': |
2669 | if (LABEL_IS_SUN) |
2670 | list_table(1); |
2671 | else |
2672 | x_list_table(0); |
2673 | break; |
2674 | case 'q': |
2675 | if (ENABLE_FEATURE_CLEAN_UP) |
2676 | close_dev_fd(); |
2677 | bb_putchar('\n'); |
2678 | exit(EXIT_SUCCESS); |
2679 | case 'r': |
2680 | return; |
2681 | case 's': |
2682 | user_sectors = g_sectors = read_int(1, g_sectors, 63, 0, |
2683 | "Number of sectors"); |
2684 | if (dos_compatible_flag) { |
2685 | sector_offset = g_sectors; |
2686 | printf("Warning: setting sector offset for DOS " |
2687 | "compatiblity\n"); |
2688 | } |
2689 | update_units(); |
2690 | break; |
2691 | case 'v': |
2692 | verify(); |
2693 | break; |
2694 | case 'w': |
2695 | write_table(); /* does not return */ |
2696 | break; |
2697 | case 'y': |
2698 | if (LABEL_IS_SUN) |
2699 | sun_set_pcylcount(); |
2700 | break; |
2701 | default: |
2702 | xmenu(); |
2703 | } |
2704 | } |
2705 | } |
2706 | #endif /* ADVANCED mode */ |
2707 | |
2708 | static int |
2709 | is_ide_cdrom_or_tape(const char *device) |
2710 | { |
2711 | FILE *procf; |
2712 | char buf[100]; |
2713 | struct stat statbuf; |
2714 | int is_ide = 0; |
2715 | |
2716 | /* No device was given explicitly, and we are trying some |
2717 | likely things. But opening /dev/hdc may produce errors like |
2718 | "hdc: tray open or drive not ready" |
2719 | if it happens to be a CD-ROM drive. It even happens that |
2720 | the process hangs on the attempt to read a music CD. |
2721 | So try to be careful. This only works since 2.1.73. */ |
2722 | |
2723 | if (strncmp("/dev/hd", device, 7)) |
2724 | return 0; |
2725 | |
2726 | snprintf(buf, sizeof(buf), "/proc/ide/%s/media", device+5); |
2727 | procf = fopen_for_read(buf); |
2728 | if (procf != NULL && fgets(buf, sizeof(buf), procf)) |
2729 | is_ide = (!strncmp(buf, "cdrom", 5) || |
2730 | !strncmp(buf, "tape", 4)); |
2731 | else |
2732 | /* Now when this proc file does not exist, skip the |
2733 | device when it is read-only. */ |
2734 | if (stat(device, &statbuf) == 0) |
2735 | is_ide = ((statbuf.st_mode & 0222) == 0); |
2736 | |
2737 | if (procf) |
2738 | fclose(procf); |
2739 | return is_ide; |
2740 | } |
2741 | |
2742 | |
2743 | static void |
2744 | open_list_and_close(const char *device, int user_specified) |
2745 | { |
2746 | int gb; |
2747 | |
2748 | disk_device = device; |
2749 | if (setjmp(listingbuf)) |
2750 | return; |
2751 | if (!user_specified) |
2752 | if (is_ide_cdrom_or_tape(device)) |
2753 | return; |
2754 | |
2755 | /* Open disk_device, save file descriptor to dev_fd */ |
2756 | errno = 0; |
2757 | gb = get_boot(TRY_ONLY); |
2758 | if (gb > 0) { /* I/O error */ |
2759 | /* Ignore other errors, since we try IDE |
2760 | and SCSI hard disks which may not be |
2761 | installed on the system. */ |
2762 | if (user_specified || errno == EACCES) |
2763 | bb_perror_msg("can't open '%s'", device); |
2764 | return; |
2765 | } |
2766 | |
2767 | if (gb < 0) { /* no DOS signature */ |
2768 | list_disk_geometry(); |
2769 | if (LABEL_IS_AIX) |
2770 | goto ret; |
2771 | #if ENABLE_FEATURE_OSF_LABEL |
2772 | if (bsd_trydev(device) < 0) |
2773 | #endif |
2774 | printf("Disk %s doesn't contain a valid " |
2775 | "partition table\n", device); |
2776 | } else { |
2777 | list_table(0); |
2778 | #if ENABLE_FEATURE_FDISK_WRITABLE |
2779 | if (!LABEL_IS_SUN && g_partitions > 4) { |
2780 | delete_partition(ext_index); |
2781 | } |
2782 | #endif |
2783 | } |
2784 | ret: |
2785 | close_dev_fd(); |
2786 | } |
2787 | |
2788 | /* for fdisk -l: try all things in /proc/partitions |
2789 | that look like a partition name (do not end in a digit) */ |
2790 | static void |
2791 | list_devs_in_proc_partititons(void) |
2792 | { |
2793 | FILE *procpt; |
2794 | char line[100], ptname[100], devname[120], *s; |
2795 | int ma, mi, sz; |
2796 | |
2797 | procpt = fopen_or_warn("/proc/partitions", "r"); |
2798 | |
2799 | while (fgets(line, sizeof(line), procpt)) { |
2800 | if (sscanf(line, " %u %u %u %[^\n ]", |
2801 | &ma, &mi, &sz, ptname) != 4) |
2802 | continue; |
2803 | for (s = ptname; *s; s++) |
2804 | continue; |
2805 | if (isdigit(s[-1])) |
2806 | continue; |
2807 | sprintf(devname, "/dev/%s", ptname); |
2808 | open_list_and_close(devname, 0); |
2809 | } |
2810 | #if ENABLE_FEATURE_CLEAN_UP |
2811 | fclose(procpt); |
2812 | #endif |
2813 | } |
2814 | |
2815 | #if ENABLE_FEATURE_FDISK_WRITABLE |
2816 | static void |
2817 | unknown_command(int c) |
2818 | { |
2819 | printf("%c: unknown command\n", c); |
2820 | } |
2821 | #endif |
2822 | |
2823 | int fdisk_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; |
2824 | int fdisk_main(int argc UNUSED_PARAM, char **argv) |
2825 | { |
2826 | unsigned opt; |
2827 | /* |
2828 | * fdisk -v |
2829 | * fdisk -l [-b sectorsize] [-u] device ... |
2830 | * fdisk -s [partition] ... |
2831 | * fdisk [-b sectorsize] [-u] device |
2832 | * |
2833 | * Options -C, -H, -S set the geometry. |
2834 | */ |
2835 | INIT_G(); |
2836 | |
2837 | close_dev_fd(); /* needed: fd 3 must not stay closed */ |
2838 | |
2839 | opt_complementary = "b+:C+:H+:S+"; /* numeric params */ |
2840 | opt = getopt32(argv, "b:C:H:lS:u" IF_FEATURE_FDISK_BLKSIZE("s"), |
2841 | §or_size, &user_cylinders, &user_heads, &user_sectors); |
2842 | argv += optind; |
2843 | if (opt & OPT_b) { // -b |
2844 | /* Ugly: this sector size is really per device, |
2845 | so cannot be combined with multiple disks, |
2846 | and the same goes for the C/H/S options. |
2847 | */ |
2848 | if (sector_size != 512 && sector_size != 1024 |
2849 | && sector_size != 2048) |
2850 | bb_show_usage(); |
2851 | sector_offset = 2; |
2852 | user_set_sector_size = 1; |
2853 | } |
2854 | if (user_heads <= 0 || user_heads >= 256) |
2855 | user_heads = 0; |
2856 | if (user_sectors <= 0 || user_sectors >= 64) |
2857 | user_sectors = 0; |
2858 | if (opt & OPT_u) |
2859 | display_in_cyl_units = 0; // -u |
2860 | |
2861 | #if ENABLE_FEATURE_FDISK_WRITABLE |
2862 | if (opt & OPT_l) { |
2863 | nowarn = 1; |
2864 | #endif |
2865 | if (*argv) { |
2866 | listing = 1; |
2867 | do { |
2868 | open_list_and_close(*argv, 1); |
2869 | } while (*++argv); |
2870 | } else { |
2871 | /* we don't have device names, */ |
2872 | /* use /proc/partitions instead */ |
2873 | list_devs_in_proc_partititons(); |
2874 | } |
2875 | return 0; |
2876 | #if ENABLE_FEATURE_FDISK_WRITABLE |
2877 | } |
2878 | #endif |
2879 | |
2880 | #if ENABLE_FEATURE_FDISK_BLKSIZE |
2881 | if (opt & OPT_s) { |
2882 | int j; |
2883 | |
2884 | nowarn = 1; |
2885 | if (!argv[0]) |
2886 | bb_show_usage(); |
2887 | for (j = 0; argv[j]; j++) { |
2888 | unsigned long long size; |
2889 | fd = xopen(argv[j], O_RDONLY); |
2890 | size = bb_BLKGETSIZE_sectors(fd) / 2; |
2891 | close(fd); |
2892 | if (argv[1]) |
2893 | printf("%llu\n", size); |
2894 | else |
2895 | printf("%s: %llu\n", argv[j], size); |
2896 | } |
2897 | return 0; |
2898 | } |
2899 | #endif |
2900 | |
2901 | #if ENABLE_FEATURE_FDISK_WRITABLE |
2902 | if (!argv[0] || argv[1]) |
2903 | bb_show_usage(); |
2904 | |
2905 | disk_device = argv[0]; |
2906 | get_boot(OPEN_MAIN); |
2907 | |
2908 | if (LABEL_IS_OSF) { |
2909 | /* OSF label, and no DOS label */ |
2910 | printf("Detected an OSF/1 disklabel on %s, entering " |
2911 | "disklabel mode\n", disk_device); |
2912 | bsd_select(); |
2913 | /*Why do we do this? It seems to be counter-intuitive*/ |
2914 | current_label_type = LABEL_DOS; |
2915 | /* If we return we may want to make an empty DOS label? */ |
2916 | } |
2917 | |
2918 | while (1) { |
2919 | int c; |
2920 | bb_putchar('\n'); |
2921 | c = tolower(read_nonempty("Command (m for help): ")); |
2922 | switch (c) { |
2923 | case 'a': |
2924 | if (LABEL_IS_DOS) |
2925 | toggle_active(get_partition(1, g_partitions)); |
2926 | else if (LABEL_IS_SUN) |
2927 | toggle_sunflags(get_partition(1, g_partitions), |
2928 | 0x01); |
2929 | else if (LABEL_IS_SGI) |
2930 | sgi_set_bootpartition( |
2931 | get_partition(1, g_partitions)); |
2932 | else |
2933 | unknown_command(c); |
2934 | break; |
2935 | case 'b': |
2936 | if (LABEL_IS_SGI) { |
2937 | printf("\nThe current boot file is: %s\n", |
2938 | sgi_get_bootfile()); |
2939 | if (read_maybe_empty("Please enter the name of the " |
2940 | "new boot file: ") == '\n') |
2941 | printf("Boot file unchanged\n"); |
2942 | else |
2943 | sgi_set_bootfile(line_ptr); |
2944 | } |
2945 | #if ENABLE_FEATURE_OSF_LABEL |
2946 | else |
2947 | bsd_select(); |
2948 | #endif |
2949 | break; |
2950 | case 'c': |
2951 | if (LABEL_IS_DOS) |
2952 | toggle_dos_compatibility_flag(); |
2953 | else if (LABEL_IS_SUN) |
2954 | toggle_sunflags(get_partition(1, g_partitions), |
2955 | 0x10); |
2956 | else if (LABEL_IS_SGI) |
2957 | sgi_set_swappartition( |
2958 | get_partition(1, g_partitions)); |
2959 | else |
2960 | unknown_command(c); |
2961 | break; |
2962 | case 'd': |
2963 | { |
2964 | int j; |
2965 | /* If sgi_label then don't use get_existing_partition, |
2966 | let the user select a partition, since |
2967 | get_existing_partition() only works for Linux-like |
2968 | partition tables */ |
2969 | if (!LABEL_IS_SGI) { |
2970 | j = get_existing_partition(1, g_partitions); |
2971 | } else { |
2972 | j = get_partition(1, g_partitions); |
2973 | } |
2974 | if (j >= 0) |
2975 | delete_partition(j); |
2976 | } |
2977 | break; |
2978 | case 'i': |
2979 | if (LABEL_IS_SGI) |
2980 | create_sgiinfo(); |
2981 | else |
2982 | unknown_command(c); |
2983 | case 'l': |
2984 | list_types(get_sys_types()); |
2985 | break; |
2986 | case 'm': |
2987 | menu(); |
2988 | break; |
2989 | case 'n': |
2990 | new_partition(); |
2991 | break; |
2992 | case 'o': |
2993 | create_doslabel(); |
2994 | break; |
2995 | case 'p': |
2996 | list_table(0); |
2997 | break; |
2998 | case 'q': |
2999 | if (ENABLE_FEATURE_CLEAN_UP) |
3000 | close_dev_fd(); |
3001 | bb_putchar('\n'); |
3002 | return 0; |
3003 | case 's': |
3004 | #if ENABLE_FEATURE_SUN_LABEL |
3005 | create_sunlabel(); |
3006 | #endif |
3007 | break; |
3008 | case 't': |
3009 | change_sysid(); |
3010 | break; |
3011 | case 'u': |
3012 | change_units(); |
3013 | break; |
3014 | case 'v': |
3015 | verify(); |
3016 | break; |
3017 | case 'w': |
3018 | write_table(); /* does not return */ |
3019 | break; |
3020 | #if ENABLE_FEATURE_FDISK_ADVANCED |
3021 | case 'x': |
3022 | if (LABEL_IS_SGI) { |
3023 | printf("\n\tSorry, no experts menu for SGI " |
3024 | "partition tables available\n\n"); |
3025 | } else |
3026 | xselect(); |
3027 | break; |
3028 | #endif |
3029 | default: |
3030 | unknown_command(c); |
3031 | menu(); |
3032 | } |
3033 | } |
3034 | return 0; |
3035 | #endif /* FEATURE_FDISK_WRITABLE */ |
3036 | } |