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Merge branch 'meson-more-build-options' of https://github.com/jwillikers/util-linux
[thirdparty/util-linux.git] / disk-utils / sfdisk.c
1 /*
2 * Copyright (C) 1995 Andries E. Brouwer (aeb@cwi.nl)
3 * Copyright (C) 2014 Karel Zak <kzak@redhat.com>
4 *
5 * This program is free software. You can redistribute it and/or
6 * modify it under the terms of the GNU General Public License
7 * as published by the Free Software Foundation: either Version 1
8 * or (at your option) any later version.
9 *
10 * A.V. Le Blanc (LeBlanc@mcc.ac.uk) wrote Linux fdisk 1992-1994,
11 * patched by various people (faith@cs.unc.edu, martin@cs.unc.edu,
12 * leisner@sdsp.mc.xerox.com, esr@snark.thyrsus.com, aeb@cwi.nl)
13 * 1993-1995, with version numbers (as far as I have seen) 0.93 - 2.0e.
14 * This program had (head,sector,cylinder) as basic unit, and was
15 * (therefore) broken in several ways for the use on larger disks -
16 * for example, my last patch (from 2.0d to 2.0e) was required
17 * to allow a partition to cross cylinder 8064, and to write an
18 * extended partition past the 4GB mark.
19 *
20 * Karel Zak wrote new sfdisk based on libfdisk from util-linux
21 * in 2014.
22 */
23
24 #include <unistd.h>
25 #include <stdio.h>
26 #include <stdlib.h>
27 #include <string.h>
28 #include <ctype.h>
29 #include <errno.h>
30 #include <getopt.h>
31 #include <sys/stat.h>
32 #include <assert.h>
33 #include <fcntl.h>
34 #include <libsmartcols.h>
35 #ifdef HAVE_LIBREADLINE
36 # define _FUNCTION_DEF
37 # include <readline/readline.h>
38 #endif
39 #include <libgen.h>
40
41 #include "c.h"
42 #include "xalloc.h"
43 #include "nls.h"
44 #include "debug.h"
45 #include "strutils.h"
46 #include "closestream.h"
47 #include "colors.h"
48 #include "blkdev.h"
49 #include "all-io.h"
50 #include "rpmatch.h"
51 #include "optutils.h"
52
53 #include "libfdisk.h"
54 #include "fdisk-list.h"
55
56 /*
57 * sfdisk debug stuff (see fdisk.h and include/debug.h)
58 */
59 static UL_DEBUG_DEFINE_MASK(sfdisk);
60 UL_DEBUG_DEFINE_MASKNAMES(sfdisk) = UL_DEBUG_EMPTY_MASKNAMES;
61
62 #define SFDISKPROG_DEBUG_INIT (1 << 1)
63 #define SFDISKPROG_DEBUG_PARSE (1 << 2)
64 #define SFDISKPROG_DEBUG_MISC (1 << 3)
65 #define SFDISKPROG_DEBUG_ASK (1 << 4)
66 #define SFDISKPROG_DEBUG_ALL 0xFFFF
67
68 #define DBG(m, x) __UL_DBG(sfdisk, SFDISKPROG_DEBUG_, m, x)
69 #define ON_DBG(m, x) __UL_DBG_CALL(sfdisk, SFDISKPROG_DEBUG_, m, x)
70
71 enum {
72 ACT_FDISK = 1,
73 ACT_ACTIVATE,
74 ACT_CHANGE_ID,
75 ACT_DUMP,
76 ACT_LIST,
77 ACT_LIST_FREE,
78 ACT_LIST_TYPES,
79 ACT_REORDER,
80 ACT_SHOW_SIZE,
81 ACT_SHOW_GEOM,
82 ACT_VERIFY,
83 ACT_PARTTYPE,
84 ACT_PARTUUID,
85 ACT_PARTLABEL,
86 ACT_PARTATTRS,
87 ACT_DELETE
88 };
89
90 struct sfdisk {
91 int act; /* ACT_* */
92 int partno; /* -N <partno>, default -1 */
93 int wipemode; /* remove foreign signatures from disk */
94 int pwipemode; /* remove foreign signatures from partitions */
95 const char *label; /* --label <label> */
96 const char *label_nested; /* --label-nested <label> */
97 const char *backup_file; /* -O <path> */
98 const char *move_typescript; /* --movedata <typescript> */
99 char *prompt;
100
101 struct fdisk_context *cxt; /* libfdisk context */
102 struct fdisk_partition *orig_pa; /* -N <partno> before the change */
103
104 unsigned int verify : 1, /* call fdisk_verify_disklabel() */
105 quiet : 1, /* suppress extra messages */
106 interactive : 1, /* running on tty */
107 noreread : 1, /* don't check device is in use */
108 force : 1, /* do also stupid things */
109 backup : 1, /* backup sectors before write PT */
110 container : 1, /* PT contains container (MBR extended) partitions */
111 append : 1, /* don't create new PT, append partitions only */
112 json : 1, /* JSON dump */
113 movedata: 1, /* move data after resize */
114 notell : 1, /* don't tell kernel aout new PT */
115 noact : 1; /* do not write to device */
116 };
117
118 #define SFDISK_PROMPT ">>> "
119
120 static void sfdiskprog_init_debug(void)
121 {
122 __UL_INIT_DEBUG_FROM_ENV(sfdisk, SFDISKPROG_DEBUG_, 0, SFDISK_DEBUG);
123 }
124
125
126 static int get_user_reply(const char *prompt, char *buf, size_t bufsz)
127 {
128 char *p;
129 size_t sz;
130
131 #ifdef HAVE_LIBREADLINE
132 if (isatty(STDIN_FILENO)) {
133 p = readline(prompt);
134 if (!p)
135 return 1;
136 xstrncpy(buf, p, bufsz);
137 free(p);
138 } else
139 #endif
140 {
141 fputs(prompt, stdout);
142 fflush(stdout);
143
144 if (!fgets(buf, bufsz, stdin))
145 return 1;
146 }
147
148 for (p = buf; *p && !isgraph(*p); p++); /* get first non-blank */
149
150 if (p > buf)
151 memmove(buf, p, p - buf); /* remove blank space */
152 sz = strlen(buf);
153 if (sz && *(buf + sz - 1) == '\n')
154 *(buf + sz - 1) = '\0';
155
156 DBG(ASK, ul_debug("user's reply: >>>%s<<<", buf));
157 return 0;
158 }
159
160 static int ask_callback(struct fdisk_context *cxt __attribute__((__unused__)),
161 struct fdisk_ask *ask,
162 void *data)
163 {
164 struct sfdisk *sf = (struct sfdisk *) data;
165 int rc = 0;
166
167 assert(ask);
168
169 switch(fdisk_ask_get_type(ask)) {
170 case FDISK_ASKTYPE_INFO:
171 if (sf->quiet)
172 break;
173 fputs(fdisk_ask_print_get_mesg(ask), stdout);
174 fputc('\n', stdout);
175 break;
176 case FDISK_ASKTYPE_WARNX:
177 fflush(stdout);
178 color_scheme_fenable("warn", UL_COLOR_RED, stderr);
179 fputs(fdisk_ask_print_get_mesg(ask), stderr);
180 color_fdisable(stderr);
181 fputc('\n', stderr);
182 break;
183 case FDISK_ASKTYPE_WARN:
184 fflush(stdout);
185 color_scheme_fenable("warn", UL_COLOR_RED, stderr);
186 fputs(fdisk_ask_print_get_mesg(ask), stderr);
187 errno = fdisk_ask_print_get_errno(ask);
188 fprintf(stderr, ": %m\n");
189 color_fdisable(stderr);
190 break;
191 case FDISK_ASKTYPE_YESNO:
192 {
193 char buf[BUFSIZ] = { '\0' };
194 fputc('\n', stdout);
195 do {
196 int x;
197 fputs(fdisk_ask_get_query(ask), stdout);
198 rc = get_user_reply(_(" [Y]es/[N]o: "), buf, sizeof(buf));
199 if (rc)
200 break;
201 x = rpmatch(buf);
202 if (x == RPMATCH_YES || x == RPMATCH_NO) {
203 fdisk_ask_yesno_set_result(ask, x);
204 break;
205 }
206 } while(1);
207 DBG(ASK, ul_debug("yes-no ask: reply '%s' [rc=%d]", buf, rc));
208 break;
209 }
210 default:
211 break;
212 }
213 return rc;
214 }
215
216 static void sfdisk_init(struct sfdisk *sf)
217 {
218 fdisk_init_debug(0);
219 scols_init_debug(0);
220 sfdiskprog_init_debug();
221
222 sf->cxt = fdisk_new_context();
223 if (!sf->cxt)
224 err(EXIT_FAILURE, _("failed to allocate libfdisk context"));
225 fdisk_set_ask(sf->cxt, ask_callback, (void *) sf);
226 fdisk_enable_bootbits_protection(sf->cxt, 1);
227
228 if (sf->label_nested) {
229 struct fdisk_context *x = fdisk_new_nested_context(sf->cxt,
230 sf->label_nested);
231 if (!x)
232 err(EXIT_FAILURE, _("failed to allocate nested libfdisk context"));
233 /* the original context is available by fdisk_get_parent() */
234 sf->cxt = x;
235 }
236 }
237
238 static int sfdisk_deinit(struct sfdisk *sf)
239 {
240 struct fdisk_context *parent;
241
242 assert(sf);
243 assert(sf->cxt);
244
245 parent = fdisk_get_parent(sf->cxt);
246 if (parent) {
247 fdisk_unref_context(sf->cxt);
248 sf->cxt = parent;
249 }
250
251 fdisk_unref_context(sf->cxt);
252 free(sf->prompt);
253
254 memset(sf, 0, sizeof(*sf));
255 return 0;
256 }
257
258 static struct fdisk_partition *get_partition(struct fdisk_context *cxt, size_t partno)
259 {
260 struct fdisk_table *tb = NULL;
261 struct fdisk_partition *pa;
262
263 if (fdisk_get_partitions(cxt, &tb) != 0)
264 return NULL;
265
266 pa = fdisk_table_get_partition_by_partno(tb, partno);
267 if (pa)
268 fdisk_ref_partition(pa);
269 fdisk_unref_table(tb);
270 return pa;
271 }
272
273 static void backup_sectors(struct sfdisk *sf,
274 const char *tpl,
275 const char *name,
276 const char *devname,
277 uint64_t offset, size_t size)
278 {
279 char *fname;
280 int fd, devfd;
281
282 devfd = fdisk_get_devfd(sf->cxt);
283 assert(devfd >= 0);
284
285 xasprintf(&fname, "%s0x%08"PRIx64".bak", tpl, offset);
286
287 fd = open(fname, O_CREAT | O_WRONLY, S_IRUSR | S_IWUSR);
288 if (fd < 0)
289 goto fail;
290
291 if (lseek(devfd, (off_t) offset, SEEK_SET) == (off_t) -1) {
292 fdisk_warn(sf->cxt, _("cannot seek %s"), devname);
293 goto fail;
294 } else {
295 unsigned char *buf = xmalloc(size);
296
297 if (read_all(devfd, (char *) buf, size) != (ssize_t) size) {
298 fdisk_warn(sf->cxt, _("cannot read %s"), devname);
299 free(buf);
300 goto fail;
301 }
302 if (write_all(fd, buf, size) != 0) {
303 fdisk_warn(sf->cxt, _("cannot write %s"), fname);
304 free(buf);
305 goto fail;
306 }
307 free(buf);
308 }
309
310 fdisk_info(sf->cxt, _("%12s (offset %5ju, size %5ju): %s"),
311 name, (uintmax_t) offset, (uintmax_t) size, fname);
312 close(fd);
313 free(fname);
314 return;
315 fail:
316 errx(EXIT_FAILURE, _("%s: failed to create a backup"), devname);
317 }
318
319 static char *mk_backup_filename_tpl(const char *filename, const char *devname, const char *suffix)
320 {
321 char *tpl = NULL;
322 char *name, *buf = xstrdup(devname);
323
324 name = basename(buf);
325
326 if (!filename) {
327 const char *home = getenv ("HOME");
328 if (!home)
329 errx(EXIT_FAILURE, _("failed to create a backup file, $HOME undefined"));
330 xasprintf(&tpl, "%s/sfdisk-%s%s", home, name, suffix);
331 } else
332 xasprintf(&tpl, "%s-%s%s", filename, name, suffix);
333
334 free(buf);
335 return tpl;
336 }
337
338
339 static void backup_partition_table(struct sfdisk *sf, const char *devname)
340 {
341 const char *name;
342 char *tpl;
343 uint64_t offset = 0;
344 size_t size = 0;
345 int i = 0;
346
347 assert(sf);
348
349 if (!fdisk_has_label(sf->cxt))
350 return;
351
352 tpl = mk_backup_filename_tpl(sf->backup_file, devname, "-");
353
354 color_scheme_enable("header", UL_COLOR_BOLD);
355 fdisk_info(sf->cxt, _("Backup files:"));
356 color_disable();
357
358 while (fdisk_locate_disklabel(sf->cxt, i++, &name, &offset, &size) == 0 && size)
359 backup_sectors(sf, tpl, name, devname, offset, size);
360
361 if (!sf->quiet)
362 fputc('\n', stdout);
363 free(tpl);
364 }
365
366 static int move_partition_data(struct sfdisk *sf, size_t partno, struct fdisk_partition *orig_pa)
367 {
368 struct fdisk_partition *pa = get_partition(sf->cxt, partno);
369 char *devname = NULL, *typescript = NULL, *buf = NULL;
370 FILE *f = NULL;
371 int ok = 0, fd, backward = 0;
372 fdisk_sector_t nsectors, from, to, step, i;
373 size_t ss, step_bytes, cc;
374 uintmax_t src, dst;
375 int errsv;
376
377 assert(sf->movedata);
378
379 if (!pa)
380 warnx(_("failed to read new partition from device; ignoring --move-data"));
381 else if (!fdisk_partition_has_size(pa))
382 warnx(_("failed to get size of the new partition; ignoring --move-data"));
383 else if (!fdisk_partition_has_start(pa))
384 warnx(_("failed to get start of the new partition; ignoring --move-data"));
385 else if (!fdisk_partition_has_size(orig_pa))
386 warnx(_("failed to get size of the old partition; ignoring --move-data"));
387 else if (!fdisk_partition_has_start(orig_pa))
388 warnx(_("failed to get start of the old partition; ignoring --move-data"));
389 else if (fdisk_partition_get_start(pa) == fdisk_partition_get_start(orig_pa))
390 warnx(_("start of the partition has not been moved; ignoring --move-data"));
391 else if (fdisk_partition_get_size(orig_pa) < fdisk_partition_get_size(pa))
392 warnx(_("new partition is smaller than original; ignoring --move-data"));
393 else
394 ok = 1;
395 if (!ok)
396 return -EINVAL;
397
398 DBG(MISC, ul_debug("moving data"));
399
400 fd = fdisk_get_devfd(sf->cxt);
401
402 ss = fdisk_get_sector_size(sf->cxt);
403 nsectors = fdisk_partition_get_size(orig_pa);
404 from = fdisk_partition_get_start(orig_pa);
405 to = fdisk_partition_get_start(pa);
406
407 if ((to >= from && from + nsectors >= to) ||
408 (from >= to && to + nsectors >= from)) {
409 /* source and target overlay, check if we need to copy
410 * backwardly from end of the source */
411 DBG(MISC, ul_debug("overlay between source and target"));
412 backward = from < to;
413 DBG(MISC, ul_debug(" copy order: %s", backward ? "backward" : "forward"));
414
415 step = from > to ? from - to : to - from;
416 if (step > nsectors)
417 step = nsectors;
418 } else
419 step = nsectors;
420
421 /* make step usable for malloc() */
422 if (step * ss > (getpagesize() * 256U))
423 step = (getpagesize() * 256) / ss;
424
425 /* align the step (note that nsectors does not have to be power of 2) */
426 while (nsectors % step)
427 step--;
428
429 step_bytes = step * ss;
430 DBG(MISC, ul_debug(" step: %ju (%zu bytes)", (uintmax_t)step, step_bytes));
431
432 #if defined(POSIX_FADV_SEQUENTIAL) && defined(HAVE_POSIX_FADVISE)
433 if (!backward)
434 posix_fadvise(fd, from * ss, nsectors * ss, POSIX_FADV_SEQUENTIAL);
435 #endif
436 devname = fdisk_partname(fdisk_get_devname(sf->cxt), partno+1);
437 typescript = mk_backup_filename_tpl(sf->move_typescript, devname, ".move");
438
439 if (!sf->quiet) {
440 fdisk_info(sf->cxt,"");
441 color_scheme_enable("header", UL_COLOR_BOLD);
442 fdisk_info(sf->cxt, _("Data move:"));
443 color_disable();
444 fdisk_info(sf->cxt, _(" typescript file: %s"), typescript);
445 printf(_(" old start: %ju, new start: %ju (move %ju sectors)\n"),
446 (uintmax_t) from, (uintmax_t) to, (uintmax_t) nsectors);
447 fflush(stdout);
448 }
449
450 if (sf->interactive) {
451 int yes = 0;
452 fdisk_ask_yesno(sf->cxt, _("Do you want to move partition data?"), &yes);
453 if (!yes) {
454 fdisk_info(sf->cxt, _("Leaving."));
455 return 0;
456 }
457 }
458
459 f = fopen(typescript, "w");
460 if (!f)
461 goto fail;
462
463 /* don't translate */
464 fprintf(f, "# sfdisk: " PACKAGE_STRING "\n");
465 fprintf(f, "# Disk: %s\n", devname);
466 fprintf(f, "# Partition: %zu\n", partno + 1);
467 fprintf(f, "# Operation: move data\n");
468 fprintf(f, "# Original start offset (sectors/bytes): %ju/%ju\n",
469 (uintmax_t)from, (uintmax_t)from * ss);
470 fprintf(f, "# New start offset (sectors/bytes): %ju/%ju\n",
471 (uintmax_t)to, (uintmax_t)to * ss);
472 fprintf(f, "# Area size (sectors/bytes): %ju/%ju\n",
473 (uintmax_t)nsectors, (uintmax_t)nsectors * ss);
474 fprintf(f, "# Sector size: %zu\n", ss);
475 fprintf(f, "# Step size (in bytes): %zu\n", step_bytes);
476 fprintf(f, "# Steps: %ju\n", (uintmax_t)(nsectors / step));
477 fprintf(f, "#\n");
478 fprintf(f, "# <step>: <from> <to> (step offsets in bytes)\n");
479
480 src = (backward ? from + nsectors : from) * ss;
481 dst = (backward ? to + nsectors : to) * ss;
482 buf = xmalloc(step_bytes);
483
484 DBG(MISC, ul_debug(" initial: src=%ju dst=%ju", src, dst));
485
486 for (cc = 1, i = 0; i < nsectors; i += step, cc++) {
487 ssize_t rc;
488
489 if (backward)
490 src -= step_bytes, dst -= step_bytes;
491
492 DBG(MISC, ul_debug("#%05zu: src=%ju dst=%ju", cc, src, dst));
493
494 /* read source */
495 if (lseek(fd, src, SEEK_SET) == (off_t) -1)
496 goto fail;
497 rc = read(fd, buf, step_bytes);
498 if (rc < 0 || rc != (ssize_t) step_bytes)
499 goto fail;
500
501 /* write target */
502 if (lseek(fd, dst, SEEK_SET) == (off_t) -1)
503 goto fail;
504 rc = write(fd, buf, step_bytes);
505 if (rc < 0 || rc != (ssize_t) step_bytes)
506 goto fail;
507 fsync(fd);
508
509 /* write log */
510 fprintf(f, "%05zu: %12ju %12ju\n", cc, src, dst);
511
512 #if defined(POSIX_FADV_DONTNEED) && defined(HAVE_POSIX_FADVISE)
513 posix_fadvise(fd, src, step_bytes, POSIX_FADV_DONTNEED);
514 #endif
515 if (!backward)
516 src += step_bytes, dst += step_bytes;
517 }
518
519 fclose(f);
520 free(buf);
521 free(devname);
522 free(typescript);
523
524 return 0;
525 fail:
526 errsv = -errno;
527 warn(_("%s: failed to move data"), devname);
528 if (f)
529 fclose(f);
530 free(buf);
531 free(devname);
532 free(typescript);
533
534 return errsv;
535 }
536
537 static int write_changes(struct sfdisk *sf)
538 {
539 int rc = 0;
540
541 if (sf->noact)
542 fdisk_info(sf->cxt, _("The partition table is unchanged (--no-act)."));
543 else {
544 rc = fdisk_write_disklabel(sf->cxt);
545 if (rc == 0 && sf->movedata && sf->orig_pa)
546 rc = move_partition_data(sf, sf->partno, sf->orig_pa);
547 if (!rc) {
548 fdisk_info(sf->cxt, _("\nThe partition table has been altered."));
549 if (!sf->notell) {
550 /* Let's wait a little bit. It's possible that our
551 * system is still busy with a previous re-read
552 * ioctl (on sfdisk start) or with another task
553 * related to the write to the device.
554 */
555 xusleep(250000);
556 fdisk_reread_partition_table(sf->cxt);
557 }
558 }
559 }
560 if (!rc)
561 rc = fdisk_deassign_device(sf->cxt,
562 sf->noact || sf->notell); /* no-sync */
563 return rc;
564 }
565
566 /*
567 * sfdisk --list [<device ..]
568 */
569 static int command_list_partitions(struct sfdisk *sf, int argc, char **argv)
570 {
571 int fail = 0;
572 fdisk_enable_listonly(sf->cxt, 1);
573
574 if (argc) {
575 int i, ct = 0;
576
577 for (i = 0; i < argc; i++) {
578 if (ct)
579 fputs("\n\n", stdout);
580 if (print_device_pt(sf->cxt, argv[i], 1, sf->verify) != 0)
581 fail++;
582 ct++;
583 }
584 } else
585 print_all_devices_pt(sf->cxt, sf->verify);
586
587 return fail;
588 }
589
590 /*
591 * sfdisk --list-free [<device ..]
592 */
593 static int command_list_freespace(struct sfdisk *sf, int argc, char **argv)
594 {
595 int fail = 0;
596 fdisk_enable_listonly(sf->cxt, 1);
597
598 if (argc) {
599 int i, ct = 0;
600
601 for (i = 0; i < argc; i++) {
602 if (ct)
603 fputs("\n\n", stdout);
604 if (print_device_freespace(sf->cxt, argv[i], 1) != 0)
605 fail++;
606 ct++;
607 }
608 } else
609 print_all_devices_freespace(sf->cxt);
610
611 return fail;
612 }
613
614 /*
615 * sfdisk --list-types
616 */
617 static int command_list_types(struct sfdisk *sf)
618 {
619 const struct fdisk_parttype *t;
620 struct fdisk_label *lb;
621 const char *name;
622 size_t i = 0;
623 int codes;
624
625 assert(sf);
626 assert(sf->cxt);
627
628 name = sf->label ? sf->label : "dos";
629 lb = fdisk_get_label(sf->cxt, name);
630 if (!lb)
631 errx(EXIT_FAILURE, _("unsupported label '%s'"), name);
632
633 codes = fdisk_label_has_code_parttypes(lb);
634 fputs(_("Id Name\n\n"), stdout);
635
636 while ((t = fdisk_label_get_parttype(lb, i++))) {
637 if (codes)
638 printf("%2x %s\n", fdisk_parttype_get_code(t),
639 fdisk_parttype_get_name(t));
640 else
641 printf("%s %s\n", fdisk_parttype_get_string(t),
642 fdisk_parttype_get_name(t));
643 }
644
645 return 0;
646 }
647
648 static int verify_device(struct sfdisk *sf, const char *devname)
649 {
650 int rc = 1;
651
652 fdisk_enable_listonly(sf->cxt, 1);
653
654 if (fdisk_assign_device(sf->cxt, devname, 1)) {
655 warn(_("cannot open %s"), devname);
656 return 1;
657 }
658
659 color_scheme_enable("header", UL_COLOR_BOLD);
660 fdisk_info(sf->cxt, "%s:", devname);
661 color_disable();
662
663 if (!fdisk_has_label(sf->cxt))
664 fdisk_info(sf->cxt, _("unrecognized partition table type"));
665 else
666 rc = fdisk_verify_disklabel(sf->cxt);
667
668 fdisk_deassign_device(sf->cxt, 1);
669 return rc;
670 }
671
672 /*
673 * sfdisk --verify [<device ..]
674 */
675 static int command_verify(struct sfdisk *sf, int argc, char **argv)
676 {
677 int nfails = 0, ct = 0;
678
679 if (argc) {
680 int i;
681 for (i = 0; i < argc; i++) {
682 if (i)
683 fdisk_info(sf->cxt, " ");
684 if (verify_device(sf, argv[i]) < 0)
685 nfails++;
686 }
687 } else {
688 FILE *f = NULL;
689 char *dev;
690
691 while ((dev = next_proc_partition(&f))) {
692 if (ct)
693 fdisk_info(sf->cxt, " ");
694 if (verify_device(sf, dev) < 0)
695 nfails++;
696 free(dev);
697 ct++;
698 }
699 }
700
701 return nfails;
702 }
703
704 static int get_size(const char *dev, int silent, uintmax_t *sz)
705 {
706 int fd, rc = 0;
707
708 fd = open(dev, O_RDONLY);
709 if (fd < 0) {
710 if (!silent)
711 warn(_("cannot open %s"), dev);
712 return -errno;
713 }
714
715 if (blkdev_get_sectors(fd, (unsigned long long *) sz) == -1) {
716 if (!silent)
717 warn(_("Cannot get size of %s"), dev);
718 rc = -errno;
719 }
720
721 close(fd);
722 return rc;
723 }
724
725 /*
726 * sfdisk --show-size [<device ..]
727 *
728 * (silly, but just for backward compatibility)
729 */
730 static int command_show_size(struct sfdisk *sf __attribute__((__unused__)),
731 int argc, char **argv)
732 {
733 uintmax_t sz;
734
735 if (argc) {
736 int i;
737 for (i = 0; i < argc; i++) {
738 if (get_size(argv[i], 0, &sz) == 0)
739 printf("%ju\n", sz / 2);
740 }
741 } else {
742 FILE *f = NULL;
743 uintmax_t total = 0;
744 char *dev;
745
746 while ((dev = next_proc_partition(&f))) {
747 if (get_size(dev, 1, &sz) == 0) {
748 printf("%s: %9ju\n", dev, sz / 2);
749 total += sz / 2;
750 }
751 free(dev);
752 }
753 if (total)
754 printf(_("total: %ju blocks\n"), total);
755 }
756
757 return 0;
758 }
759
760 static int print_geom(struct sfdisk *sf, const char *devname)
761 {
762 fdisk_enable_listonly(sf->cxt, 1);
763
764 if (fdisk_assign_device(sf->cxt, devname, 1)) {
765 warn(_("cannot open %s"), devname);
766 return 1;
767 }
768
769 fdisk_info(sf->cxt, "%s: %ju cylinders, %ju heads, %ju sectors/track",
770 devname,
771 (uintmax_t) fdisk_get_geom_cylinders(sf->cxt),
772 (uintmax_t) fdisk_get_geom_heads(sf->cxt),
773 (uintmax_t) fdisk_get_geom_sectors(sf->cxt));
774
775 fdisk_deassign_device(sf->cxt, 1);
776 return 0;
777 }
778
779 /*
780 * sfdisk --show-geometry [<device ..]
781 */
782 static int command_show_geometry(struct sfdisk *sf, int argc, char **argv)
783 {
784 int nfails = 0;
785
786 if (argc) {
787 int i;
788 for (i = 0; i < argc; i++) {
789 if (print_geom(sf, argv[i]) < 0)
790 nfails++;
791 }
792 } else {
793 FILE *f = NULL;
794 char *dev;
795
796 while ((dev = next_proc_partition(&f))) {
797 if (print_geom(sf, dev) < 0)
798 nfails++;
799 free(dev);
800 }
801 }
802
803 return nfails;
804 }
805
806 /*
807 * sfdisk --activate <device> [<partno> ...]
808 */
809 static int command_activate(struct sfdisk *sf, int argc, char **argv)
810 {
811 int rc, nparts, i, listonly;
812 struct fdisk_partition *pa = NULL;
813 const char *devname = NULL;
814
815 if (argc < 1)
816 errx(EXIT_FAILURE, _("no disk device specified"));
817 devname = argv[0];
818
819 /* --activate <device> */
820 listonly = argc == 1;
821
822 rc = fdisk_assign_device(sf->cxt, devname, listonly);
823 if (rc)
824 err(EXIT_FAILURE, _("cannot open %s"), devname);
825
826 if (fdisk_is_label(sf->cxt, GPT)) {
827 if (fdisk_gpt_is_hybrid(sf->cxt))
828 errx(EXIT_FAILURE, _("toggle boot flags is unsupported for Hybrid GPT/MBR"));
829
830 /* Switch from GPT to PMBR */
831 sf->cxt = fdisk_new_nested_context(sf->cxt, "dos");
832 if (!sf->cxt)
833 err(EXIT_FAILURE, _("cannot switch to PMBR"));
834 fdisk_info(sf->cxt, _("Activation is unsupported for GPT -- entering nested PMBR."));
835
836 } else if (!fdisk_is_label(sf->cxt, DOS))
837 errx(EXIT_FAILURE, _("toggle boot flags is supported for MBR or PMBR only"));
838
839 if (!listonly && sf->backup)
840 backup_partition_table(sf, devname);
841
842 nparts = fdisk_get_npartitions(sf->cxt);
843 for (i = 0; i < nparts; i++) {
844 char *data = NULL;
845
846 /* note that fdisk_get_partition() reuses the @pa pointer, you
847 * don't have to (re)allocate it */
848 if (fdisk_get_partition(sf->cxt, i, &pa) != 0)
849 continue;
850
851 /* sfdisk --activate list bootable partitions */
852 if (listonly) {
853 if (!fdisk_partition_is_bootable(pa))
854 continue;
855 if (fdisk_partition_to_string(pa, sf->cxt,
856 FDISK_FIELD_DEVICE, &data) == 0) {
857 printf("%s\n", data);
858 free(data);
859 }
860
861 /* deactivate all active partitions */
862 } else if (fdisk_partition_is_bootable(pa))
863 fdisk_toggle_partition_flag(sf->cxt, i, DOS_FLAG_ACTIVE);
864 }
865
866 /* sfdisk --activate <partno> [..] */
867 for (i = 1; i < argc; i++) {
868 int n;
869
870 if (i == 1 && strcmp(argv[1], "-") == 0)
871 break;
872 n = strtou32_or_err(argv[i], _("failed to parse partition number"));
873
874 rc = fdisk_toggle_partition_flag(sf->cxt, n - 1, DOS_FLAG_ACTIVE);
875 if (rc)
876 errx(EXIT_FAILURE,
877 _("%s: partition %d: failed to toggle bootable flag"),
878 devname, i + 1);
879 }
880
881 fdisk_unref_partition(pa);
882
883 if (listonly)
884 rc = fdisk_deassign_device(sf->cxt, 1);
885 else
886 rc = write_changes(sf);
887 return rc;
888 }
889
890 /*
891 * sfdisk --delete <device> [<partno> ...]
892 */
893 static int command_delete(struct sfdisk *sf, int argc, char **argv)
894 {
895 size_t i;
896 const char *devname = NULL;
897
898 if (argc < 1)
899 errx(EXIT_FAILURE, _("no disk device specified"));
900 devname = argv[0];
901
902 if (fdisk_assign_device(sf->cxt, devname, 0) != 0)
903 err(EXIT_FAILURE, _("cannot open %s"), devname);
904
905 if (sf->backup)
906 backup_partition_table(sf, devname);
907
908 /* delete all */
909 if (argc == 1) {
910 size_t nparts = fdisk_get_npartitions(sf->cxt);
911 for (i = 0; i < nparts; i++) {
912 if (fdisk_is_partition_used(sf->cxt, i) &&
913 fdisk_delete_partition(sf->cxt, i) != 0)
914 errx(EXIT_FAILURE, _("%s: partition %zu: failed to delete"), devname, i + 1);
915 }
916 /* delete specified */
917 } else {
918 for (i = 1; i < (size_t) argc; i++) {
919 size_t n = strtou32_or_err(argv[i], _("failed to parse partition number"));
920
921 if (fdisk_delete_partition(sf->cxt, n - 1) != 0)
922 errx(EXIT_FAILURE, _("%s: partition %zu: failed to delete"), devname, n);
923 }
924 }
925
926 return write_changes(sf);
927 }
928
929 /*
930 * sfdisk --reorder <device>
931 */
932 static int command_reorder(struct sfdisk *sf, int argc, char **argv)
933 {
934 const char *devname = NULL;
935 int rc;
936
937 if (argc)
938 devname = argv[0];
939 if (!devname)
940 errx(EXIT_FAILURE, _("no disk device specified"));
941
942 rc = fdisk_assign_device(sf->cxt, devname, 0); /* read-write */
943 if (rc)
944 err(EXIT_FAILURE, _("cannot open %s"), devname);
945
946 if (sf->backup)
947 backup_partition_table(sf, devname);
948
949 if (fdisk_reorder_partitions(sf->cxt) == 1) /* unchanged */
950 rc = fdisk_deassign_device(sf->cxt, 1);
951 else
952 rc = write_changes(sf);
953
954 return rc;
955 }
956
957
958 /*
959 * sfdisk --dump <device>
960 */
961 static int command_dump(struct sfdisk *sf, int argc, char **argv)
962 {
963 const char *devname = NULL;
964 struct fdisk_script *dp;
965 int rc;
966
967 if (argc)
968 devname = argv[0];
969 if (!devname)
970 errx(EXIT_FAILURE, _("no disk device specified"));
971
972 rc = fdisk_assign_device(sf->cxt, devname, 1); /* read-only */
973 if (rc)
974 err(EXIT_FAILURE, _("cannot open %s"), devname);
975
976 if (!fdisk_has_label(sf->cxt))
977 errx(EXIT_FAILURE, _("%s: does not contain a recognized partition table"), devname);
978
979 dp = fdisk_new_script(sf->cxt);
980 if (!dp)
981 err(EXIT_FAILURE, _("failed to allocate dump struct"));
982
983 rc = fdisk_script_read_context(dp, NULL);
984 if (rc)
985 errx(EXIT_FAILURE, _("%s: failed to dump partition table"), devname);
986
987 if (sf->json)
988 fdisk_script_enable_json(dp, 1);
989 fdisk_script_write_file(dp, stdout);
990
991 fdisk_unref_script(dp);
992 fdisk_deassign_device(sf->cxt, 1); /* no-sync() */
993 return 0;
994 }
995
996 static void assign_device_partition(struct sfdisk *sf,
997 const char *devname,
998 size_t partno,
999 int rdonly)
1000 {
1001 int rc;
1002 size_t n;
1003 struct fdisk_label *lb = NULL;
1004
1005 assert(sf);
1006 assert(devname);
1007
1008 /* read-only when a new <type> undefined */
1009 rc = fdisk_assign_device(sf->cxt, devname, rdonly);
1010 if (rc)
1011 err(EXIT_FAILURE, _("cannot open %s"), devname);
1012
1013 lb = fdisk_get_label(sf->cxt, NULL);
1014 if (!lb)
1015 errx(EXIT_FAILURE, _("%s: no partition table found"), devname);
1016
1017 n = fdisk_get_npartitions(sf->cxt);
1018 if (partno > n)
1019 errx(EXIT_FAILURE, _("%s: partition %zu: partition table contains "
1020 "only %zu partitions"), devname, partno, n);
1021 if (!fdisk_is_partition_used(sf->cxt, partno - 1))
1022 errx(EXIT_FAILURE, _("%s: partition %zu: partition is unused"),
1023 devname, partno);
1024 }
1025
1026 /*
1027 * sfdisk --part-type <device> <partno> [<type>]
1028 */
1029 static int command_parttype(struct sfdisk *sf, int argc, char **argv)
1030 {
1031 size_t partno;
1032 struct fdisk_parttype *type = NULL;
1033 struct fdisk_label *lb;
1034 const char *devname = NULL, *typestr = NULL;
1035
1036 if (!argc)
1037 errx(EXIT_FAILURE, _("no disk device specified"));
1038 devname = argv[0];
1039
1040 if (argc < 2)
1041 errx(EXIT_FAILURE, _("no partition number specified"));
1042 partno = strtou32_or_err(argv[1], _("failed to parse partition number"));
1043
1044 if (argc == 3)
1045 typestr = argv[2];
1046 else if (argc > 3)
1047 errx(EXIT_FAILURE, _("unexpected arguments"));
1048
1049 /* read-only when a new <type> undefined */
1050 assign_device_partition(sf, devname, partno, !typestr);
1051
1052 lb = fdisk_get_label(sf->cxt, NULL);
1053
1054 /* print partition type */
1055 if (!typestr) {
1056 const struct fdisk_parttype *t = NULL;
1057 struct fdisk_partition *pa = NULL;
1058
1059 if (fdisk_get_partition(sf->cxt, partno - 1, &pa) == 0)
1060 t = fdisk_partition_get_type(pa);
1061 if (!t)
1062 errx(EXIT_FAILURE, _("%s: partition %zu: failed to get partition type"),
1063 devname, partno);
1064
1065 if (fdisk_label_has_code_parttypes(lb))
1066 printf("%2x\n", fdisk_parttype_get_code(t));
1067 else
1068 printf("%s\n", fdisk_parttype_get_string(t));
1069
1070 fdisk_unref_partition(pa);
1071 fdisk_deassign_device(sf->cxt, 1);
1072 return 0;
1073 }
1074
1075 if (sf->backup)
1076 backup_partition_table(sf, devname);
1077
1078 /* parse <type> and apply to PT */
1079 type = fdisk_label_parse_parttype(lb, typestr);
1080 if (!type)
1081 errx(EXIT_FAILURE, _("failed to parse %s partition type '%s'"),
1082 fdisk_label_get_name(lb), typestr);
1083
1084 else if (fdisk_set_partition_type(sf->cxt, partno - 1, type) != 0)
1085 errx(EXIT_FAILURE, _("%s: partition %zu: failed to set partition type"),
1086 devname, partno);
1087 fdisk_unref_parttype(type);
1088 return write_changes(sf);
1089 }
1090
1091 /*
1092 * sfdisk --part-uuid <device> <partno> [<uuid>]
1093 */
1094 static int command_partuuid(struct sfdisk *sf, int argc, char **argv)
1095 {
1096 size_t partno;
1097 struct fdisk_partition *pa = NULL;
1098 const char *devname = NULL, *uuid = NULL;
1099
1100 if (!argc)
1101 errx(EXIT_FAILURE, _("no disk device specified"));
1102 devname = argv[0];
1103
1104 if (argc < 2)
1105 errx(EXIT_FAILURE, _("no partition number specified"));
1106 partno = strtou32_or_err(argv[1], _("failed to parse partition number"));
1107
1108 if (argc == 3)
1109 uuid = argv[2];
1110 else if (argc > 3)
1111 errx(EXIT_FAILURE, _("unexpected arguments"));
1112
1113 /* read-only if uuid not given */
1114 assign_device_partition(sf, devname, partno, !uuid);
1115
1116 /* print partition uuid */
1117 if (!uuid) {
1118 const char *str = NULL;
1119
1120 if (fdisk_get_partition(sf->cxt, partno - 1, &pa) == 0)
1121 str = fdisk_partition_get_uuid(pa);
1122 if (!str)
1123 errx(EXIT_FAILURE, _("%s: partition %zu: failed to get partition UUID"),
1124 devname, partno);
1125 printf("%s\n", str);
1126 fdisk_unref_partition(pa);
1127 fdisk_deassign_device(sf->cxt, 1);
1128 return 0;
1129 }
1130
1131 if (sf->backup)
1132 backup_partition_table(sf, devname);
1133
1134 pa = fdisk_new_partition();
1135 if (!pa)
1136 err(EXIT_FAILURE, _("failed to allocate partition object"));
1137
1138 if (fdisk_partition_set_uuid(pa, uuid) != 0 ||
1139 fdisk_set_partition(sf->cxt, partno - 1, pa) != 0)
1140 errx(EXIT_FAILURE, _("%s: partition %zu: failed to set partition UUID"),
1141 devname, partno);
1142 fdisk_unref_partition(pa);
1143 return write_changes(sf);
1144 }
1145
1146 /*
1147 * sfdisk --part-label <device> <partno> [<label>]
1148 */
1149 static int command_partlabel(struct sfdisk *sf, int argc, char **argv)
1150 {
1151 size_t partno;
1152 struct fdisk_partition *pa = NULL;
1153 const char *devname = NULL, *name = NULL;
1154
1155 if (!argc)
1156 errx(EXIT_FAILURE, _("no disk device specified"));
1157 devname = argv[0];
1158
1159 if (argc < 2)
1160 errx(EXIT_FAILURE, _("no partition number specified"));
1161 partno = strtou32_or_err(argv[1], _("failed to parse partition number"));
1162
1163 if (argc == 3)
1164 name = argv[2];
1165 else if (argc > 3)
1166 errx(EXIT_FAILURE, _("unexpected arguments"));
1167
1168 /* read-only if name not given */
1169 assign_device_partition(sf, devname, partno, !name);
1170
1171 /* print partition name */
1172 if (!name) {
1173 const char *str = NULL;
1174
1175 if (fdisk_get_partition(sf->cxt, partno - 1, &pa) == 0)
1176 str = fdisk_partition_get_name(pa);
1177 if (!str)
1178 errx(EXIT_FAILURE, _("%s: partition %zu: failed to get partition name"),
1179 devname, partno);
1180 printf("%s\n", str);
1181 fdisk_unref_partition(pa);
1182 fdisk_deassign_device(sf->cxt, 1);
1183 return 0;
1184 }
1185
1186 if (sf->backup)
1187 backup_partition_table(sf, devname);
1188
1189 pa = fdisk_new_partition();
1190 if (!pa)
1191 err(EXIT_FAILURE, _("failed to allocate partition object"));
1192
1193 if (fdisk_partition_set_name(pa, name) != 0 ||
1194 fdisk_set_partition(sf->cxt, partno - 1, pa) != 0)
1195 errx(EXIT_FAILURE, _("%s: partition %zu: failed to set partition name"),
1196 devname, partno);
1197
1198 fdisk_unref_partition(pa);
1199 return write_changes(sf);
1200 }
1201
1202 /*
1203 * sfdisk --part-attrs <device> <partno> [<attrs>]
1204 */
1205 static int command_partattrs(struct sfdisk *sf, int argc, char **argv)
1206 {
1207 size_t partno;
1208 struct fdisk_partition *pa = NULL;
1209 const char *devname = NULL, *attrs = NULL;
1210
1211 if (!argc)
1212 errx(EXIT_FAILURE, _("no disk device specified"));
1213 devname = argv[0];
1214
1215 if (argc < 2)
1216 errx(EXIT_FAILURE, _("no partition number specified"));
1217 partno = strtou32_or_err(argv[1], _("failed to parse partition number"));
1218
1219 if (argc == 3)
1220 attrs = argv[2];
1221 else if (argc > 3)
1222 errx(EXIT_FAILURE, _("unexpected arguments"));
1223
1224 /* read-only if name not given */
1225 assign_device_partition(sf, devname, partno, !attrs);
1226
1227 /* print partition name */
1228 if (!attrs) {
1229 const char *str = NULL;
1230
1231 if (fdisk_get_partition(sf->cxt, partno - 1, &pa) == 0)
1232 str = fdisk_partition_get_attrs(pa);
1233 if (str)
1234 printf("%s\n", str);
1235 fdisk_unref_partition(pa);
1236 fdisk_deassign_device(sf->cxt, 1);
1237 return 0;
1238 }
1239
1240 if (sf->backup)
1241 backup_partition_table(sf, devname);
1242
1243 pa = fdisk_new_partition();
1244 if (!pa)
1245 err(EXIT_FAILURE, _("failed to allocate partition object"));
1246
1247 if (fdisk_partition_set_attrs(pa, attrs) != 0 ||
1248 fdisk_set_partition(sf->cxt, partno - 1, pa) != 0)
1249 errx(EXIT_FAILURE, _("%s: partition %zu: failed to set partition attributes"),
1250 devname, partno);
1251
1252 fdisk_unref_partition(pa);
1253 return write_changes(sf);
1254 }
1255
1256 static void sfdisk_print_partition(struct sfdisk *sf, size_t n)
1257 {
1258 struct fdisk_partition *pa = NULL;
1259 char *data;
1260
1261 assert(sf);
1262
1263 if (sf->quiet)
1264 return;
1265 if (fdisk_get_partition(sf->cxt, n, &pa) != 0)
1266 return;
1267
1268 fdisk_partition_to_string(pa, sf->cxt, FDISK_FIELD_DEVICE, &data);
1269 printf("%12s : ", data);
1270
1271 fdisk_partition_to_string(pa, sf->cxt, FDISK_FIELD_START, &data);
1272 printf("%12s ", data);
1273
1274 fdisk_partition_to_string(pa, sf->cxt, FDISK_FIELD_END, &data);
1275 printf("%12s ", data);
1276
1277 fdisk_partition_to_string(pa, sf->cxt, FDISK_FIELD_SIZE, &data);
1278 printf("(%s) ", data);
1279
1280 fdisk_partition_to_string(pa, sf->cxt, FDISK_FIELD_TYPE, &data);
1281 printf("%s\n", data);
1282
1283 fdisk_unref_partition(pa);
1284 }
1285
1286 static void command_fdisk_help(void)
1287 {
1288 fputs(_("\nHelp:\n"), stdout);
1289
1290 fputc('\n', stdout);
1291 color_scheme_enable("help-title", UL_COLOR_BOLD);
1292 fputs(_(" Commands:\n"), stdout);
1293 color_disable();
1294 fputs(_(" write write table to disk and exit\n"), stdout);
1295 fputs(_(" quit show new situation and wait for user's feedback before write\n"), stdout);
1296 fputs(_(" abort exit sfdisk shell\n"), stdout);
1297 fputs(_(" print display the partition table\n"), stdout);
1298 fputs(_(" help show this help text\n"), stdout);
1299 fputc('\n', stdout);
1300 fputs(_(" Ctrl-D the same as 'quit'\n"), stdout);
1301
1302 fputc('\n', stdout);
1303 color_scheme_enable("help-title", UL_COLOR_BOLD);
1304 fputs(_(" Input format:\n"), stdout);
1305 color_disable();
1306 fputs(_(" <start>, <size>, <type>, <bootable>\n"), stdout);
1307
1308 fputc('\n', stdout);
1309 fputs(_(" <start> Beginning of the partition in sectors, or bytes if\n"
1310 " specified in the format <number>{K,M,G,T,P,E,Z,Y}.\n"
1311 " The default is the first free space.\n"), stdout);
1312
1313 fputc('\n', stdout);
1314 fputs(_(" <size> Size of the partition in sectors, or bytes if\n"
1315 " specified in the format <number>{K,M,G,T,P,E,Z,Y}.\n"
1316 " The default is all available space.\n"), stdout);
1317
1318 fputc('\n', stdout);
1319 fputs(_(" <type> The partition type. Default is a Linux data partition.\n"), stdout);
1320 fputs(_(" MBR: hex or L,S,E,X,U,R,V shortcuts.\n"), stdout);
1321 fputs(_(" GPT: UUID or L,S,H,U,R,V shortcuts.\n"), stdout);
1322
1323 fputc('\n', stdout);
1324 fputs(_(" <bootable> Use '*' to mark an MBR partition as bootable.\n"), stdout);
1325
1326 fputc('\n', stdout);
1327 color_scheme_enable("help-title", UL_COLOR_BOLD);
1328 fputs(_(" Example:\n"), stdout);
1329 color_disable();
1330 fputs(_(" , 4G Creates a 4GiB partition at default start offset.\n"), stdout);
1331 fputc('\n', stdout);
1332 }
1333
1334 enum {
1335 SFDISK_DONE_NONE = 0,
1336 SFDISK_DONE_EOF,
1337 SFDISK_DONE_ABORT,
1338 SFDISK_DONE_WRITE,
1339 SFDISK_DONE_ASK
1340 };
1341
1342 /* returns: 0 on success, <0 on error, 1 successfully stop sfdisk */
1343 static int loop_control_commands(struct sfdisk *sf,
1344 struct fdisk_script *dp,
1345 char *buf)
1346 {
1347 const char *p = skip_blank(buf);
1348 int rc = SFDISK_DONE_NONE;
1349
1350 if (strcmp(p, "print") == 0)
1351 list_disklabel(sf->cxt);
1352 else if (strcmp(p, "help") == 0)
1353 command_fdisk_help();
1354 else if (strcmp(p, "quit") == 0)
1355 rc = SFDISK_DONE_ASK;
1356 else if (strcmp(p, "write") == 0)
1357 rc = SFDISK_DONE_WRITE;
1358 else if (strcmp(p, "abort") == 0)
1359 rc = SFDISK_DONE_ABORT;
1360 else {
1361 if (sf->interactive)
1362 fdisk_warnx(sf->cxt, _("unsupported command"));
1363 else {
1364 fdisk_warnx(sf->cxt, _("line %d: unsupported command"),
1365 fdisk_script_get_nlines(dp));
1366 rc = -EINVAL;
1367 }
1368 }
1369 return rc;
1370 }
1371
1372 static int has_container(struct sfdisk *sf)
1373 {
1374 size_t i, nparts;
1375 struct fdisk_partition *pa = NULL;
1376
1377 if (sf->container)
1378 return sf->container;
1379
1380 nparts = fdisk_get_npartitions(sf->cxt);
1381 for (i = 0; i < nparts; i++) {
1382 if (fdisk_get_partition(sf->cxt, i, &pa) != 0)
1383 continue;
1384 if (fdisk_partition_is_container(pa)) {
1385 sf->container = 1;
1386 break;
1387 }
1388 }
1389
1390 fdisk_unref_partition(pa);
1391 return sf->container;
1392 }
1393
1394 static size_t last_pt_partno(struct sfdisk *sf)
1395 {
1396 size_t i, nparts, partno = 0;
1397 struct fdisk_partition *pa = NULL;
1398
1399
1400 nparts = fdisk_get_npartitions(sf->cxt);
1401 for (i = 0; i < nparts; i++) {
1402 size_t x;
1403
1404 if (fdisk_get_partition(sf->cxt, i, &pa) != 0 ||
1405 !fdisk_partition_is_used(pa))
1406 continue;
1407 x = fdisk_partition_get_partno(pa);
1408 if (x > partno)
1409 partno = x;
1410 }
1411
1412 fdisk_unref_partition(pa);
1413 return partno;
1414 }
1415
1416 #ifdef HAVE_LIBREADLINE
1417 static char *sfdisk_fgets(struct fdisk_script *dp,
1418 char *buf, size_t bufsz, FILE *f)
1419 {
1420 struct sfdisk *sf = (struct sfdisk *) fdisk_script_get_userdata(dp);
1421
1422 assert(dp);
1423 assert(buf);
1424 assert(bufsz > 2);
1425
1426 if (sf->interactive) {
1427 char *p = readline(sf->prompt);
1428 size_t len;
1429
1430 if (!p)
1431 return NULL;
1432 len = strlen(p);
1433 if (len > bufsz - 2)
1434 len = bufsz - 2;
1435
1436 memcpy(buf, p, len);
1437 buf[len] = '\n'; /* append \n to be compatible with libc fgetc() */
1438 buf[len + 1] = '\0';
1439 free(p);
1440 fflush(stdout);
1441 return buf;
1442 }
1443 return fgets(buf, bufsz, f);
1444 }
1445 #endif
1446
1447 static int ignore_partition(struct fdisk_partition *pa)
1448 {
1449 /* incomplete partition setting */
1450 if (!fdisk_partition_has_start(pa) && !fdisk_partition_start_is_default(pa))
1451 return 1;
1452 if (!fdisk_partition_has_size(pa) && !fdisk_partition_end_is_default(pa))
1453 return 1;
1454
1455 /* probably dump from old sfdisk with start=0 size=0 */
1456 if (fdisk_partition_has_start(pa) && fdisk_partition_get_start(pa) == 0 &&
1457 fdisk_partition_has_size(pa) && fdisk_partition_get_size(pa) == 0)
1458 return 1;
1459
1460 return 0;
1461 }
1462
1463 static void follow_wipe_mode(struct sfdisk *sf)
1464 {
1465 int dowipe = sf->wipemode == WIPEMODE_ALWAYS ? 1 : 0;
1466
1467 if (sf->interactive && sf->wipemode == WIPEMODE_AUTO)
1468 dowipe = 1; /* do it in interactive mode */
1469
1470 if (fdisk_is_ptcollision(sf->cxt) && sf->wipemode != WIPEMODE_NEVER)
1471 dowipe = 1; /* always wipe old PT */
1472
1473 fdisk_enable_wipe(sf->cxt, dowipe);
1474 if (sf->quiet)
1475 return;
1476
1477 if (dowipe) {
1478 if (!fdisk_is_ptcollision(sf->cxt)) {
1479 fdisk_info(sf->cxt, _("The old %s signature will be removed by a write command."),
1480 fdisk_get_collision(sf->cxt));
1481 fputc('\n', stderr);
1482 }
1483 } else {
1484 fdisk_warnx(sf->cxt, _(
1485 "The old %s signature may remain on the device. "
1486 "It is recommended to wipe the device with wipefs(8) or "
1487 "sfdisk --wipe, in order to avoid possible collisions."),
1488 fdisk_get_collision(sf->cxt));
1489 fputc('\n', stderr);
1490 }
1491 }
1492
1493 static int wipe_partition(struct sfdisk *sf, size_t partno)
1494 {
1495 int rc, yes = 0;
1496 char *fstype = NULL;
1497 struct fdisk_partition *tmp = NULL;
1498
1499 DBG(MISC, ul_debug("checking for signature"));
1500
1501 rc = fdisk_get_partition(sf->cxt, partno, &tmp);
1502 if (rc)
1503 goto done;
1504
1505 rc = fdisk_partition_to_string(tmp, sf->cxt, FDISK_FIELD_FSTYPE, &fstype);
1506 if (rc || fstype == NULL)
1507 goto done;
1508
1509 fdisk_warnx(sf->cxt, _("Partition #%zu contains a %s signature."), partno + 1, fstype);
1510
1511 if (sf->pwipemode == WIPEMODE_AUTO && isatty(STDIN_FILENO))
1512 fdisk_ask_yesno(sf->cxt, _("Do you want to remove the signature?"), &yes);
1513 else if (sf->pwipemode == WIPEMODE_ALWAYS)
1514 yes = 1;
1515
1516 if (yes) {
1517 fdisk_info(sf->cxt, _("The signature will be removed by a write command."));
1518 rc = fdisk_wipe_partition(sf->cxt, partno, TRUE);
1519 }
1520 done:
1521 fdisk_unref_partition(tmp);
1522 free(fstype);
1523 DBG(MISC, ul_debug("partition wipe check end [rc=%d]", rc));
1524 return rc;
1525 }
1526
1527 static void refresh_prompt_buffer(struct sfdisk *sf, const char *devname,
1528 size_t next_partno, int created)
1529 {
1530 if (created) {
1531 char *partname = fdisk_partname(devname, next_partno + 1);
1532 if (!partname)
1533 err(EXIT_FAILURE, _("failed to allocate partition name"));
1534
1535 if (!sf->prompt || !startswith(sf->prompt, partname)) {
1536 free(sf->prompt);
1537 xasprintf(&sf->prompt,"%s: ", partname);
1538 }
1539 free(partname);
1540 } else if (!sf->prompt || !startswith(sf->prompt, SFDISK_PROMPT)) {
1541 free(sf->prompt);
1542 sf->prompt = xstrdup(SFDISK_PROMPT);
1543 }
1544 }
1545
1546 /*
1547 * sfdisk <device> [[-N] <partno>]
1548 *
1549 * Note that the option -N is there for backward compatibility only.
1550 */
1551 static int command_fdisk(struct sfdisk *sf, int argc, char **argv)
1552 {
1553 int rc = 0, partno = sf->partno, created = 0, unused = 0;
1554 struct fdisk_script *dp;
1555 struct fdisk_table *tb = NULL;
1556 const char *devname = NULL, *label;
1557 char buf[BUFSIZ];
1558 size_t next_partno = (size_t) -1;
1559
1560 if (argc)
1561 devname = argv[0];
1562 if (partno < 0 && argc > 1)
1563 partno = strtou32_or_err(argv[1],
1564 _("failed to parse partition number"));
1565 if (!devname)
1566 errx(EXIT_FAILURE, _("no disk device specified"));
1567
1568 rc = fdisk_assign_device(sf->cxt, devname, 0);
1569 if (rc)
1570 err(EXIT_FAILURE, _("cannot open %s"), devname);
1571
1572 dp = fdisk_new_script(sf->cxt);
1573 if (!dp)
1574 err(EXIT_FAILURE, _("failed to allocate script handler"));
1575 fdisk_set_script(sf->cxt, dp);
1576 #ifdef HAVE_LIBREADLINE
1577 fdisk_script_set_fgets(dp, sfdisk_fgets);
1578 #endif
1579 fdisk_script_set_userdata(dp, (void *) sf);
1580
1581 /*
1582 * Don't create a new disklabel when [-N] <partno> specified. In this
1583 * case reuse already specified disklabel. Let's check that the disk
1584 * really contains the partition.
1585 */
1586 if (partno >= 0) {
1587 size_t n;
1588
1589 if (!fdisk_has_label(sf->cxt))
1590 errx(EXIT_FAILURE, _("%s: cannot modify partition %d: "
1591 "no partition table was found"),
1592 devname, partno + 1);
1593 n = fdisk_get_npartitions(sf->cxt);
1594 if ((size_t) partno > n)
1595 errx(EXIT_FAILURE, _("%s: cannot modify partition %d: "
1596 "partition table contains only %zu "
1597 "partitions"),
1598 devname, partno + 1, n);
1599
1600 if (!fdisk_is_partition_used(sf->cxt, partno)) {
1601 fdisk_warnx(sf->cxt, _("warning: %s: partition %d is not defined yet"),
1602 devname, partno + 1);
1603 unused = 1;
1604 }
1605 created = 1;
1606 next_partno = partno;
1607
1608 if (sf->movedata)
1609 sf->orig_pa = get_partition(sf->cxt, partno);
1610 }
1611
1612 if (sf->append) {
1613 created = 1;
1614 next_partno = last_pt_partno(sf) + 1;
1615 }
1616
1617 if (!sf->quiet && sf->interactive) {
1618 color_scheme_enable("welcome", UL_COLOR_GREEN);
1619 fdisk_info(sf->cxt, _("\nWelcome to sfdisk (%s)."), PACKAGE_STRING);
1620 color_disable();
1621 fdisk_info(sf->cxt, _("Changes will remain in memory only, until you decide to write them.\n"
1622 "Be careful before using the write command.\n"));
1623 }
1624
1625 if (!sf->noact && !sf->noreread) {
1626 if (!sf->quiet)
1627 fputs(_("Checking that no-one is using this disk right now ..."), stdout);
1628 if (fdisk_device_is_used(sf->cxt)) {
1629 if (!sf->quiet)
1630 fputs(_(" FAILED\n\n"), stdout);
1631
1632 fdisk_warnx(sf->cxt, _(
1633 "This disk is currently in use - repartitioning is probably a bad idea.\n"
1634 "Umount all file systems, and swapoff all swap partitions on this disk.\n"
1635 "Use the --no-reread flag to suppress this check.\n"));
1636
1637 if (!sf->force)
1638 errx(EXIT_FAILURE, _("Use the --force flag to overrule all checks."));
1639 } else if (!sf->quiet)
1640 fputs(_(" OK\n\n"), stdout);
1641 }
1642
1643 if (fdisk_get_collision(sf->cxt))
1644 follow_wipe_mode(sf);
1645
1646 if (sf->backup)
1647 backup_partition_table(sf, devname);
1648
1649 if (!sf->quiet) {
1650 list_disk_geometry(sf->cxt);
1651 if (fdisk_has_label(sf->cxt)) {
1652 fdisk_info(sf->cxt, _("\nOld situation:"));
1653 list_disklabel(sf->cxt);
1654 }
1655 }
1656
1657 if (sf->label)
1658 label = sf->label;
1659 else if (fdisk_has_label(sf->cxt))
1660 label = fdisk_label_get_name(fdisk_get_label(sf->cxt, NULL));
1661 else
1662 label = "dos"; /* just for backward compatibility */
1663
1664 fdisk_script_set_header(dp, "label", label);
1665
1666
1667 if (!sf->quiet && sf->interactive) {
1668 if (!fdisk_has_label(sf->cxt) && !sf->label)
1669 fdisk_info(sf->cxt,
1670 _("\nsfdisk is going to create a new '%s' disk label.\n"
1671 "Use 'label: <name>' before you define a first partition\n"
1672 "to override the default."), label);
1673 fdisk_info(sf->cxt, _("\nType 'help' to get more information.\n"));
1674 } else if (!sf->quiet)
1675 fputc('\n', stdout);
1676
1677 tb = fdisk_script_get_table(dp);
1678 assert(tb);
1679
1680 do {
1681 size_t nparts;
1682
1683 DBG(PARSE, ul_debug("<---next-line--->"));
1684 if (next_partno == (size_t) -1)
1685 next_partno = fdisk_table_get_nents(tb);
1686
1687 if (created
1688 && partno < 0
1689 && next_partno == fdisk_get_npartitions(sf->cxt)
1690 && !has_container(sf)) {
1691 fdisk_info(sf->cxt, _("All partitions used."));
1692 rc = SFDISK_DONE_ASK;
1693 break;
1694 }
1695
1696 refresh_prompt_buffer(sf, devname, next_partno, created);
1697
1698
1699 if (sf->prompt && (sf->interactive || !sf->quiet)) {
1700 #ifndef HAVE_LIBREADLINE
1701 fputs(sf->prompt, stdout);
1702 #else
1703 if (!sf->interactive)
1704 fputs(sf->prompt, stdout);
1705 #endif
1706 }
1707
1708 rc = fdisk_script_read_line(dp, stdin, buf, sizeof(buf));
1709 if (rc < 0) {
1710 DBG(PARSE, ul_debug("script parsing failed, trying sfdisk specific commands"));
1711 buf[sizeof(buf) - 1] = '\0';
1712 rc = loop_control_commands(sf, dp, buf);
1713 if (rc)
1714 break;
1715 continue;
1716 } else if (rc == 1) {
1717 rc = SFDISK_DONE_EOF;
1718 if (!sf->quiet)
1719 fputs(_("Done.\n"), stdout);
1720 break;
1721 }
1722
1723 nparts = fdisk_table_get_nents(tb);
1724 if (nparts) {
1725 size_t cur_partno = (size_t) -1;
1726 struct fdisk_partition *pa = fdisk_table_get_partition(tb, nparts - 1);
1727
1728 assert(pa);
1729
1730 if (ignore_partition(pa)) {
1731 fdisk_info(sf->cxt, _("Ignoring partition."));
1732 next_partno++;
1733 continue;
1734 }
1735 if (!created) { /* create a new disklabel */
1736 rc = fdisk_apply_script_headers(sf->cxt, dp);
1737 created = !rc;
1738 if (rc)
1739 fdisk_warnx(sf->cxt, _(
1740 "Failed to apply script headers, "
1741 "disk label not created."));
1742
1743 if (rc == 0 && fdisk_get_collision(sf->cxt))
1744 follow_wipe_mode(sf);
1745 }
1746 if (!rc && partno >= 0) { /* -N <partno>, modify partition */
1747 rc = fdisk_set_partition(sf->cxt, partno, pa);
1748 rc = rc == 0 ? SFDISK_DONE_ASK : SFDISK_DONE_ABORT;
1749 break;
1750 } else if (!rc) { /* add partition */
1751 if (!sf->interactive && !sf->quiet &&
1752 (!sf->prompt || startswith(sf->prompt, SFDISK_PROMPT))) {
1753 refresh_prompt_buffer(sf, devname, next_partno, created);
1754 fputs(sf->prompt, stdout);
1755 }
1756 rc = fdisk_add_partition(sf->cxt, pa, &cur_partno);
1757 if (rc) {
1758 errno = -rc;
1759 fdisk_warn(sf->cxt, _("Failed to add #%d partition"), next_partno + 1);
1760 }
1761 }
1762
1763 /* wipe partition on success
1764 *
1765 * Note that unused=1 means -N <partno> for unused,
1766 * otherwise we wipe only newly created partitions.
1767 */
1768 if (rc == 0 && (unused || partno < 0)) {
1769 rc = wipe_partition(sf, unused ? (size_t) partno : cur_partno);
1770 if (rc)
1771 errno = -rc;
1772 }
1773
1774 if (!rc) {
1775 /* success print result */
1776 if (sf->interactive)
1777 sfdisk_print_partition(sf, cur_partno);
1778 next_partno = cur_partno + 1;
1779 } else if (pa) /* error, drop partition from script */
1780 fdisk_table_remove_partition(tb, pa);
1781 } else
1782 fdisk_info(sf->cxt, _("Script header accepted."));
1783
1784 if (rc && !sf->interactive) {
1785 rc = SFDISK_DONE_ABORT;
1786 break;
1787 }
1788 } while (1);
1789
1790 /* create empty disk label if label, but no partition specified */
1791 if ((rc == SFDISK_DONE_EOF || rc == SFDISK_DONE_WRITE) && created == 0
1792 && fdisk_script_has_force_label(dp) == 1
1793 && fdisk_table_get_nents(tb) == 0
1794 && fdisk_script_get_header(dp, "label")) {
1795
1796 int xrc = fdisk_apply_script_headers(sf->cxt, dp);
1797 created = !xrc;
1798 if (xrc) {
1799 fdisk_warnx(sf->cxt, _(
1800 "Failed to apply script headers, "
1801 "disk label not created."));
1802 rc = SFDISK_DONE_ABORT;
1803 }
1804 }
1805
1806 if (!sf->quiet && rc != SFDISK_DONE_ABORT) {
1807 fdisk_info(sf->cxt, _("\nNew situation:"));
1808 list_disk_identifier(sf->cxt);
1809 list_disklabel(sf->cxt);
1810 }
1811
1812 switch (rc) {
1813 case SFDISK_DONE_ASK:
1814 case SFDISK_DONE_EOF:
1815 if (sf->interactive) {
1816 int yes = 0;
1817 fdisk_ask_yesno(sf->cxt, _("Do you want to write this to disk?"), &yes);
1818 if (!yes) {
1819 fdisk_info(sf->cxt, _("Leaving."));
1820 rc = 0;
1821 break;
1822 }
1823 }
1824 /* fallthrough */
1825 case SFDISK_DONE_WRITE:
1826 rc = write_changes(sf);
1827 break;
1828 case SFDISK_DONE_ABORT:
1829 default: /* rc < 0 on error */
1830 fdisk_info(sf->cxt, _("Leaving.\n"));
1831 break;
1832 }
1833
1834 fdisk_unref_script(dp);
1835 return rc;
1836 }
1837
1838 static void __attribute__((__noreturn__)) usage(void)
1839 {
1840 FILE *out = stdout;
1841 fputs(USAGE_HEADER, out);
1842
1843 fprintf(out,
1844 _(" %1$s [options] <dev> [[-N] <part>]\n"
1845 " %1$s [options] <command>\n"), program_invocation_short_name);
1846
1847 fputs(USAGE_SEPARATOR, out);
1848 fputs(_("Display or manipulate a disk partition table.\n"), out);
1849
1850 fputs(USAGE_COMMANDS, out);
1851 fputs(_(" -A, --activate <dev> [<part> ...] list or set bootable (P)MBR partitions\n"), out);
1852 fputs(_(" -d, --dump <dev> dump partition table (usable for later input)\n"), out);
1853 fputs(_(" -J, --json <dev> dump partition table in JSON format\n"), out);
1854 fputs(_(" -g, --show-geometry [<dev> ...] list geometry of all or specified devices\n"), out);
1855 fputs(_(" -l, --list [<dev> ...] list partitions of each device\n"), out);
1856 fputs(_(" -F, --list-free [<dev> ...] list unpartitioned free areas of each device\n"), out);
1857 fputs(_(" -r, --reorder <dev> fix partitions order (by start offset)\n"), out);
1858 fputs(_(" -s, --show-size [<dev> ...] list sizes of all or specified devices\n"), out);
1859 fputs(_(" -T, --list-types print the recognized types (see -X)\n"), out);
1860 fputs(_(" -V, --verify [<dev> ...] test whether partitions seem correct\n"), out);
1861 fputs(_(" --delete <dev> [<part> ...] delete all or specified partitions\n"), out);
1862
1863 fputs(USAGE_SEPARATOR, out);
1864 fputs(_(" --part-label <dev> <part> [<str>] print or change partition label\n"), out);
1865 fputs(_(" --part-type <dev> <part> [<type>] print or change partition type\n"), out);
1866 fputs(_(" --part-uuid <dev> <part> [<uuid>] print or change partition uuid\n"), out);
1867 fputs(_(" --part-attrs <dev> <part> [<str>] print or change partition attributes\n"), out);
1868
1869 fputs(USAGE_SEPARATOR, out);
1870 fputs(_(" <dev> device (usually disk) path\n"), out);
1871 fputs(_(" <part> partition number\n"), out);
1872 fputs(_(" <type> partition type, GUID for GPT, hex for MBR\n"), out);
1873
1874 fputs(USAGE_OPTIONS, out);
1875 fputs(_(" -a, --append append partitions to existing partition table\n"), out);
1876 fputs(_(" -b, --backup backup partition table sectors (see -O)\n"), out);
1877 fputs(_(" --bytes print SIZE in bytes rather than in human readable format\n"), out);
1878 fputs(_(" --move-data[=<typescript>] move partition data after relocation (requires -N)\n"), out);
1879 fputs(_(" -f, --force disable all consistency checking\n"), out);
1880 fputs(_(" --color[=<when>] colorize output (auto, always or never)\n"), out);
1881 fprintf(out,
1882 " %s\n", USAGE_COLORS_DEFAULT);
1883 fputs(_(" -N, --partno <num> specify partition number\n"), out);
1884 fputs(_(" -n, --no-act do everything except write to device\n"), out);
1885 fputs(_(" --no-reread do not check whether the device is in use\n"), out);
1886 fputs(_(" --no-tell-kernel do not tell kernel about changes\n"), out);
1887 fputs(_(" -O, --backup-file <path> override default backup file name\n"), out);
1888 fputs(_(" -o, --output <list> output columns\n"), out);
1889 fputs(_(" -q, --quiet suppress extra info messages\n"), out);
1890 fputs(_(" -w, --wipe <mode> wipe signatures (auto, always or never)\n"), out);
1891 fputs(_(" -W, --wipe-partitions <mode> wipe signatures from new partitions (auto, always or never)\n"), out);
1892 fputs(_(" -X, --label <name> specify label type (dos, gpt, ...)\n"), out);
1893 fputs(_(" -Y, --label-nested <name> specify nested label type (dos, bsd)\n"), out);
1894 fputs(USAGE_SEPARATOR, out);
1895 fputs(_(" -G, --show-pt-geometry deprecated, alias to --show-geometry\n"), out);
1896 fputs(_(" -L, --Linux deprecated, only for backward compatibility\n"), out);
1897 fputs(_(" -u, --unit S deprecated, only sector unit is supported\n"), out);
1898
1899 fputs(USAGE_SEPARATOR, out);
1900 printf( " -h, --help %s\n", USAGE_OPTSTR_HELP);
1901 printf( " -v, --version %s\n", USAGE_OPTSTR_VERSION);
1902
1903 list_available_columns(out);
1904
1905 printf(USAGE_MAN_TAIL("sfdisk(8)"));
1906 exit(EXIT_SUCCESS);
1907 }
1908
1909
1910 int main(int argc, char *argv[])
1911 {
1912 const char *outarg = NULL;
1913 int rc = -EINVAL, c, longidx = -1, bytes = 0;
1914 int colormode = UL_COLORMODE_UNDEF;
1915 struct sfdisk _sf = {
1916 .partno = -1,
1917 .wipemode = WIPEMODE_AUTO,
1918 .pwipemode = WIPEMODE_AUTO,
1919 .interactive = isatty(STDIN_FILENO) ? 1 : 0,
1920 }, *sf = &_sf;
1921
1922 enum {
1923 OPT_CHANGE_ID = CHAR_MAX + 1,
1924 OPT_PRINT_ID,
1925 OPT_ID,
1926 OPT_NOREREAD,
1927 OPT_PARTUUID,
1928 OPT_PARTLABEL,
1929 OPT_PARTTYPE,
1930 OPT_PARTATTRS,
1931 OPT_BYTES,
1932 OPT_COLOR,
1933 OPT_MOVEDATA,
1934 OPT_DELETE,
1935 OPT_NOTELL
1936 };
1937
1938 static const struct option longopts[] = {
1939 { "activate",no_argument, NULL, 'A' },
1940 { "append", no_argument, NULL, 'a' },
1941 { "backup", no_argument, NULL, 'b' },
1942 { "backup-file", required_argument, NULL, 'O' },
1943 { "bytes", no_argument, NULL, OPT_BYTES },
1944 { "color", optional_argument, NULL, OPT_COLOR },
1945 { "delete", no_argument, NULL, OPT_DELETE },
1946 { "dump", no_argument, NULL, 'd' },
1947 { "help", no_argument, NULL, 'h' },
1948 { "force", no_argument, NULL, 'f' },
1949 { "json", no_argument, NULL, 'J' },
1950 { "label", required_argument, NULL, 'X' },
1951 { "label-nested", required_argument, NULL, 'Y' },
1952 { "list", no_argument, NULL, 'l' },
1953 { "list-free", no_argument, NULL, 'F' },
1954 { "list-types", no_argument, NULL, 'T' },
1955 { "no-act", no_argument, NULL, 'n' },
1956 { "no-reread", no_argument, NULL, OPT_NOREREAD },
1957 { "no-tell-kernel", no_argument, NULL, OPT_NOTELL },
1958 { "move-data", optional_argument, NULL, OPT_MOVEDATA },
1959 { "output", required_argument, NULL, 'o' },
1960 { "partno", required_argument, NULL, 'N' },
1961 { "reorder", no_argument, NULL, 'r' },
1962 { "show-geometry", no_argument, NULL, 'g' },
1963 { "quiet", no_argument, NULL, 'q' },
1964 { "verify", no_argument, NULL, 'V' },
1965 { "version", no_argument, NULL, 'v' },
1966 { "wipe", required_argument, NULL, 'w' },
1967 { "wipe-partitions", required_argument, NULL, 'W' },
1968
1969 { "part-uuid", no_argument, NULL, OPT_PARTUUID },
1970 { "part-label", no_argument, NULL, OPT_PARTLABEL },
1971 { "part-type", no_argument, NULL, OPT_PARTTYPE },
1972 { "part-attrs", no_argument, NULL, OPT_PARTATTRS },
1973
1974 { "show-pt-geometry", no_argument, NULL, 'G' }, /* deprecated */
1975 { "unit", required_argument, NULL, 'u' }, /* deprecated */
1976 { "Linux", no_argument, NULL, 'L' }, /* deprecated */
1977 { "show-size", no_argument, NULL, 's' }, /* deprecated */
1978
1979 { "change-id",no_argument, NULL, OPT_CHANGE_ID }, /* deprecated */
1980 { "id", no_argument, NULL, 'c' }, /* deprecated */
1981 { "print-id",no_argument, NULL, OPT_PRINT_ID }, /* deprecated */
1982
1983 { NULL, 0, NULL, 0 },
1984 };
1985 static const ul_excl_t excl[] = { /* rows and cols in ASCII order */
1986 { 's','u'}, /* --show-size --unit */
1987 { 0 }
1988 };
1989 int excl_st[ARRAY_SIZE(excl)] = UL_EXCL_STATUS_INIT;
1990
1991
1992 setlocale(LC_ALL, "");
1993 bindtextdomain(PACKAGE, LOCALEDIR);
1994 textdomain(PACKAGE);
1995 close_stdout_atexit();
1996
1997 while ((c = getopt_long(argc, argv, "aAbcdfFgGhJlLo:O:nN:qrsTu:vVX:Y:w:W:",
1998 longopts, &longidx)) != -1) {
1999
2000 err_exclusive_options(c, longopts, excl, excl_st);
2001
2002 switch(c) {
2003 case 'A':
2004 sf->act = ACT_ACTIVATE;
2005 break;
2006 case 'a':
2007 sf->append = 1;
2008 break;
2009 case 'b':
2010 sf->backup = 1;
2011 break;
2012 case OPT_CHANGE_ID:
2013 case OPT_PRINT_ID:
2014 case OPT_ID:
2015 warnx(_("%s is deprecated in favour of --part-type"),
2016 longopts[longidx].name);
2017 sf->act = ACT_PARTTYPE;
2018 break;
2019 case 'c':
2020 warnx(_("--id is deprecated in favour of --part-type"));
2021 sf->act = ACT_PARTTYPE;
2022 break;
2023 case 'J':
2024 sf->json = 1;
2025 /* fallthrough */
2026 case 'd':
2027 sf->act = ACT_DUMP;
2028 break;
2029 case 'F':
2030 sf->act = ACT_LIST_FREE;
2031 break;
2032 case 'f':
2033 sf->force = 1;
2034 break;
2035 case 'G':
2036 warnx(_("--show-pt-geometry is no more implemented. Using --show-geometry."));
2037 /* fallthrough */
2038 case 'g':
2039 sf->act = ACT_SHOW_GEOM;
2040 break;
2041 case 'h':
2042 usage();
2043 break;
2044 case 'l':
2045 sf->act = ACT_LIST;
2046 break;
2047 case 'L':
2048 warnx(_("--Linux option is unnecessary and deprecated"));
2049 break;
2050 case 'o':
2051 outarg = optarg;
2052 break;
2053 case 'O':
2054 sf->backup = 1;
2055 sf->backup_file = optarg;
2056 break;
2057 case 'n':
2058 sf->noact = 1;
2059 break;
2060 case 'N':
2061 sf->partno = strtou32_or_err(optarg, _("failed to parse partition number")) - 1;
2062 break;
2063 case 'q':
2064 sf->quiet = 1;
2065 break;
2066 case 'r':
2067 sf->act = ACT_REORDER;
2068 break;
2069 case 's':
2070 sf->act = ACT_SHOW_SIZE;
2071 break;
2072 case 'T':
2073 sf->act = ACT_LIST_TYPES;
2074 break;
2075 case 'u':
2076 if (*optarg != 'S')
2077 errx(EXIT_FAILURE, _("unsupported unit '%c'"), *optarg);
2078 break;
2079 case 'v':
2080 print_version(EXIT_SUCCESS);
2081 case 'V':
2082 sf->verify = 1;
2083 break;
2084 case 'w':
2085 sf->wipemode = wipemode_from_string(optarg);
2086 if (sf->wipemode < 0)
2087 errx(EXIT_FAILURE, _("unsupported wipe mode"));
2088 break;
2089 case 'W':
2090 sf->pwipemode = wipemode_from_string(optarg);
2091 if (sf->pwipemode < 0)
2092 errx(EXIT_FAILURE, _("unsupported wipe mode"));
2093 break;
2094 case 'X':
2095 sf->label = optarg;
2096 break;
2097 case 'Y':
2098 sf->label_nested = optarg;
2099 break;
2100
2101 case OPT_PARTUUID:
2102 sf->act = ACT_PARTUUID;
2103 break;
2104 case OPT_PARTTYPE:
2105 sf->act = ACT_PARTTYPE;
2106 break;
2107 case OPT_PARTLABEL:
2108 sf->act = ACT_PARTLABEL;
2109 break;
2110 case OPT_PARTATTRS:
2111 sf->act = ACT_PARTATTRS;
2112 break;
2113 case OPT_NOREREAD:
2114 sf->noreread = 1;
2115 break;
2116 case OPT_BYTES:
2117 bytes = 1;
2118 break;
2119 case OPT_COLOR:
2120 colormode = UL_COLORMODE_AUTO;
2121 if (optarg)
2122 colormode = colormode_or_err(optarg,
2123 _("unsupported color mode"));
2124 break;
2125 case OPT_MOVEDATA:
2126 sf->movedata = 1;
2127 sf->move_typescript = optarg;
2128 break;
2129 case OPT_DELETE:
2130 sf->act = ACT_DELETE;
2131 break;
2132 case OPT_NOTELL:
2133 sf->notell = 1;
2134 break;
2135 default:
2136 errtryhelp(EXIT_FAILURE);
2137 }
2138 }
2139
2140 colors_init(colormode, "sfdisk");
2141
2142 sfdisk_init(sf);
2143 if (bytes)
2144 fdisk_set_size_unit(sf->cxt, FDISK_SIZEUNIT_BYTES);
2145
2146 if (outarg)
2147 init_fields(NULL, outarg, NULL);
2148
2149 if (sf->verify && !sf->act)
2150 sf->act = ACT_VERIFY; /* --verify make be used with --list too */
2151 else if (!sf->act)
2152 sf->act = ACT_FDISK; /* default */
2153
2154 if (sf->movedata && !(sf->act == ACT_FDISK && sf->partno >= 0))
2155 errx(EXIT_FAILURE, _("--movedata requires -N"));
2156
2157 switch (sf->act) {
2158 case ACT_ACTIVATE:
2159 rc = command_activate(sf, argc - optind, argv + optind);
2160 break;
2161
2162 case ACT_DELETE:
2163 rc = command_delete(sf, argc - optind, argv + optind);
2164 break;
2165
2166 case ACT_LIST:
2167 rc = command_list_partitions(sf, argc - optind, argv + optind);
2168 break;
2169
2170 case ACT_LIST_TYPES:
2171 rc = command_list_types(sf);
2172 break;
2173
2174 case ACT_LIST_FREE:
2175 rc = command_list_freespace(sf, argc - optind, argv + optind);
2176 break;
2177
2178 case ACT_FDISK:
2179 rc = command_fdisk(sf, argc - optind, argv + optind);
2180 break;
2181
2182 case ACT_DUMP:
2183 rc = command_dump(sf, argc - optind, argv + optind);
2184 break;
2185
2186 case ACT_SHOW_SIZE:
2187 rc = command_show_size(sf, argc - optind, argv + optind);
2188 break;
2189
2190 case ACT_SHOW_GEOM:
2191 rc = command_show_geometry(sf, argc - optind, argv + optind);
2192 break;
2193
2194 case ACT_VERIFY:
2195 rc = command_verify(sf, argc - optind, argv + optind);
2196 break;
2197
2198 case ACT_PARTTYPE:
2199 rc = command_parttype(sf, argc - optind, argv + optind);
2200 break;
2201
2202 case ACT_PARTUUID:
2203 rc = command_partuuid(sf, argc - optind, argv + optind);
2204 break;
2205
2206 case ACT_PARTLABEL:
2207 rc = command_partlabel(sf, argc - optind, argv + optind);
2208 break;
2209
2210 case ACT_PARTATTRS:
2211 rc = command_partattrs(sf, argc - optind, argv + optind);
2212 break;
2213
2214 case ACT_REORDER:
2215 rc = command_reorder(sf, argc - optind, argv + optind);
2216 break;
2217 }
2218
2219 sfdisk_deinit(sf);
2220
2221 DBG(MISC, ul_debug("bye! [rc=%d]", rc));
2222 return rc == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
2223 }
2224
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