part_edit.c revision 1.18
1/*	$NetBSD: part_edit.c,v 1.18 2020/10/03 18:54:18 martin Exp $ */
2
3/*
4 * Copyright (c) 2019 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29
30/* part_edit.c -- generic partition editing code */
31
32#include <sys/param.h>
33#include <sys/types.h>
34#include <assert.h>
35#include <stdio.h>
36#include <unistd.h>
37#include <fcntl.h>
38#include <util.h>
39#include "defs.h"
40#include "md.h"
41#include "msg_defs.h"
42#include "menu_defs.h"
43#include "defsizes.h"
44#include "endian.h"
45
46
47/*
48 * A structure passed to various menu functions for partition editing
49 */
50struct part_edit_info {
51	struct disk_partitions *parts;	/* the partitions we edit */
52	struct disk_part_info cur;	/* current value (maybe incomplete) */
53	part_id cur_id;			/* which partition is it? */
54	int first_custom_opt;		/* scheme specific menu options
55					 * start here */
56	bool cancelled;			/* do not apply changes */
57	bool num_changed;		/* number of partitions has changed */
58};
59
60#ifndef NO_CLONES
61struct single_clone_data {
62	struct selected_partitions clone_src;
63	part_id *clone_ids;	/* partition IDs in target */
64};
65#endif
66struct outer_parts_data {
67	struct arg_rv av;
68#ifndef NO_CLONES
69	struct single_clone_data *clones;
70	size_t num_clone_entries;
71#endif
72};
73
74static menu_ent *part_menu_opts;		/* the currently edited partitions */
75static menu_ent *outer_fill_part_menu_opts(const struct disk_partitions *parts, size_t *cnt);
76static void draw_outer_part_line(menudesc *m, int opt, void *arg);
77
78static char 	outer_part_sep_line[MENUSTRSIZE],
79		outer_part_title[2*MENUSTRSIZE];
80
81static int
82maxline(const char *p, int *count)
83{
84	int m = 0, i = 0;
85
86	for (;; p++) {
87		if (*p == '\n' || *p == 0) {
88			if (i > m)
89				m = i;
90			(*count)++;
91			if (*p == 0)
92				return m;
93			i = 0;
94		} else {
95			i++;
96		}
97	}
98}
99
100int
101err_msg_win(const char *errmsg)
102{
103	const char *cont;
104	int l, l1, lines;
105
106	errmsg = msg_string(errmsg);
107	cont = msg_string(MSG_Hit_enter_to_continue);
108
109	lines = 0;
110	l = maxline(errmsg, &lines);
111	l1 = maxline(cont, &lines);
112	if (l < l1)
113		l = l1;
114
115	msg_fmt_prompt_win("%s.\n%s", -1, 18, l + 5, 2+lines,
116			NULL, NULL, 1, "%s%s", errmsg, cont);
117	return 0;
118}
119
120static int
121set_part_type(menudesc *m, void *arg)
122{
123	struct part_edit_info *info = arg;
124	const struct part_type_desc *desc;
125	char buf[STRSIZE];
126	const char *err;
127
128	if (m->cursel == 0)
129		return 1;	/* no change */
130
131	desc = info->parts->pscheme->get_part_type(m->cursel-1);
132	if (desc == NULL) {
133		/* Create custom type */
134		if (info->cur.nat_type != NULL)
135			strlcpy(buf, info->cur.nat_type->short_desc,
136			    sizeof(buf));
137		else
138			buf[0] = 0;
139		for (;;) {
140			msg_prompt_win(info->parts->pscheme->new_type_prompt,
141			     -1, 18, 0, 0,
142			    buf, buf, sizeof(buf));
143			if (buf[0] == 0)
144				break;
145			desc = info->parts->pscheme->create_custom_part_type(
146			    buf, &err);
147			if (desc != NULL)
148				break;
149			err_msg_win(err);
150		}
151	}
152
153	info->cur.nat_type = desc;
154	return 1;
155}
156
157static void
158set_type_label(menudesc *m, int opt, void *arg)
159{
160	struct part_edit_info *info = arg;
161	const struct part_type_desc *desc;
162
163	if (opt == 0) {
164		wprintw(m->mw, "%s", msg_string(MSG_Dont_change));
165		return;
166	}
167
168	desc = info->parts->pscheme->get_part_type(opt-1);
169	if (desc == NULL) {
170		wprintw(m->mw, "%s", msg_string(MSG_Other_kind));
171		return;
172	}
173	wprintw(m->mw, "%s", desc->description);
174}
175
176static int
177edit_part_type(menudesc *m, void *arg)
178{
179	struct part_edit_info *info = arg;
180	menu_ent *type_opts;
181	int type_menu = -1;
182	size_t popt_cnt, i;
183
184	/*
185	 * We add one line at the start of the menu, and one at the
186	 * bottom, see "set_type_label" above.
187	 */
188	popt_cnt =  info->parts->pscheme->get_part_types_count() + 2;
189	type_opts = calloc(popt_cnt, sizeof(*type_opts));
190	for (i = 0; i < popt_cnt; i++) {
191		type_opts[i].opt_action = set_part_type;
192	}
193	type_menu = new_menu(NULL, type_opts, popt_cnt,
194		13, 12, 0, 30,
195		MC_SUBMENU | MC_SCROLL | MC_NOEXITOPT | MC_NOCLEAR,
196		NULL, set_type_label, NULL,
197		NULL, NULL);
198
199	if (type_menu != -1) {
200		process_menu(type_menu, arg);
201		info->num_changed = true;	/* force reload of menu */
202	}
203
204	free_menu(type_menu);
205	free(type_opts);
206
207	return -1;
208}
209
210static int
211edit_part_start(menudesc *m, void *arg)
212{
213	struct part_edit_info *marg = arg;
214	struct disk_part_info pinfo;
215	daddr_t max_size;
216
217	marg->parts->pscheme->get_part_info(marg->parts, marg->cur_id, &pinfo);
218	marg->cur.start = getpartoff(marg->parts, marg->cur.start);
219	max_size = marg->parts->pscheme->max_free_space_at(marg->parts,
220	    pinfo.start);
221	max_size += pinfo.start - marg->cur.start;
222	if (marg->cur.size > max_size)
223		marg->cur.size = max_size;
224
225	return 0;
226}
227
228static int
229edit_part_size(menudesc *m, void *arg)
230{
231	struct part_edit_info *marg = arg;
232	struct disk_part_info pinfo;
233
234	marg->parts->pscheme->get_part_info(marg->parts, marg->cur_id, &pinfo);
235	marg->cur.size = getpartsize(marg->parts, pinfo.start,
236	    marg->cur.start, marg->cur.size);
237
238	return 0;
239}
240
241static int
242edit_part_install(menudesc *m, void *arg)
243{
244	struct part_edit_info *marg = arg;
245
246	marg->cur.flags ^= PTI_INSTALL_TARGET;
247	return 0;
248}
249
250static void
251menu_opts_reload(menudesc *m, const struct disk_partitions *parts)
252{
253	size_t new_num;
254
255	free(part_menu_opts);
256	part_menu_opts = outer_fill_part_menu_opts(parts, &new_num);
257	m->opts = part_menu_opts;
258	m->numopts = new_num;
259}
260
261static int
262delete_part(menudesc *m, void *arg)
263{
264	struct part_edit_info *marg = arg;
265	const char *err_msg = NULL;
266
267	if (marg->cur_id == NO_PART)
268		return 0;
269
270	if (!marg->parts->pscheme->delete_partition(marg->parts, marg->cur_id,
271	    &err_msg))
272		err_msg_win(err_msg);
273
274	marg->num_changed = true;	/* reload list of partitions */
275	marg->cancelled = true;		/* do not write back cur data */
276
277	return 0;
278}
279
280static void draw_outer_ptn_line(menudesc *m, int line, void *arg);
281static void draw_outer_ptn_header(menudesc *m, void *arg);
282
283static int
284part_rollback(menudesc *m, void *arg)
285{
286	struct part_edit_info *marg = arg;
287
288	marg->cancelled = true;
289	return 0;
290}
291
292static menu_ent common_ptn_edit_opts[] = {
293#define PTN_OPT_TYPE		0
294	{ .opt_action=edit_part_type },
295#define PTN_OPT_START		1
296	{ .opt_action=edit_part_start },
297#define PTN_OPT_SIZE		2
298	{ .opt_action=edit_part_size },
299#define PTN_OPT_END		3
300	{ .opt_flags=OPT_IGNORE }, /* read only "end" */
301
302	/*
303	 * Only the part upto here will be used when adding a new partition
304	 */
305
306#define PTN_OPT_INSTALL		4
307	{ .opt_action=edit_part_install },
308
309#define	PTN_OPTS_COMMON		PTN_OPT_INSTALL	/* cut off from here for add */
310};
311
312static int
313edit_custom_opt(menudesc *m, void *arg)
314{
315	struct part_edit_info *marg = arg;
316	size_t attr_no = m->cursel - marg->first_custom_opt;
317	char line[STRSIZE];
318
319	switch (marg->parts->pscheme->custom_attributes[attr_no].type) {
320	case pet_bool:
321		marg->parts->pscheme->custom_attribute_toggle(
322		    marg->parts, marg->cur_id, attr_no);
323		break;
324	case pet_cardinal:
325	case pet_str:
326		marg->parts->pscheme->format_custom_attribute(
327		    marg->parts, marg->cur_id, attr_no, &marg->cur,
328		    line, sizeof(line));
329		msg_prompt_win(
330		    marg->parts->pscheme->custom_attributes[attr_no].label,
331		    -1, 18, 0, 0, line, line, sizeof(line));
332		marg->parts->pscheme->custom_attribute_set_str(
333		    marg->parts, marg->cur_id, attr_no, line);
334		break;
335	}
336
337	return 0;
338}
339
340static menu_ent ptn_edit_opts[] = {
341	{ .opt_name=MSG_askunits, .opt_menu=MENU_sizechoice,
342	  .opt_flags=OPT_SUB },
343
344	{ .opt_name=MSG_Delete_partition,
345	  .opt_action = delete_part, .opt_flags = OPT_EXIT },
346
347	{ .opt_name=MSG_cancel,
348	  .opt_action = part_rollback, .opt_flags = OPT_EXIT },
349};
350
351static menu_ent ptn_add_opts[] = {
352	{ .opt_name=MSG_askunits, .opt_menu=MENU_sizechoice,
353	  .opt_flags=OPT_SUB },
354
355	{ .opt_name=MSG_cancel,
356	  .opt_action = part_rollback, .opt_flags = OPT_EXIT },
357};
358
359/*
360 * Concatenate common_ptn_edit_opts, the partitioning scheme specific
361 * custom options and the given suffix to a single menu options array.
362 */
363static menu_ent *
364fill_part_edit_menu_opts(struct disk_partitions *parts,
365    bool with_custom_attrs,
366    const menu_ent *suffix, size_t suffix_count, size_t *res_cnt)
367{
368	size_t i;
369	menu_ent *opts, *p;
370	size_t count, hdr_cnt;
371
372	if (with_custom_attrs) {
373		hdr_cnt = __arraycount(common_ptn_edit_opts);
374		count = hdr_cnt + parts->pscheme->custom_attribute_count
375		    + suffix_count;
376	} else {
377		hdr_cnt = PTN_OPTS_COMMON;
378		count = hdr_cnt + suffix_count;
379	}
380
381	opts = calloc(count, sizeof(*opts));
382	if (opts == NULL) {
383		*res_cnt = 0;
384		return NULL;
385	}
386
387	memcpy(opts, common_ptn_edit_opts,
388	    sizeof(*opts)*hdr_cnt);
389	p = opts + hdr_cnt;
390	if (with_custom_attrs) {
391		for (i = 0; i < parts->pscheme->custom_attribute_count; i++) {
392			p->opt_action = edit_custom_opt;
393			p++;
394		}
395	}
396	memcpy(p, suffix, sizeof(*opts)*suffix_count);
397
398	*res_cnt = count;
399	return opts;
400}
401
402static int
403edit_part_entry(menudesc *m, void *arg)
404{
405	struct outer_parts_data *pdata = arg;
406	struct part_edit_info data = { .parts = pdata->av.arg,
407	    .cur_id = m->cursel,
408	    .first_custom_opt = __arraycount(common_ptn_edit_opts) };
409	int ptn_menu;
410	const char *err;
411	menu_ent *opts;
412	size_t num_opts;
413
414	opts = fill_part_edit_menu_opts(data.parts, true, ptn_edit_opts,
415	    __arraycount(ptn_edit_opts), &num_opts);
416	if (opts == NULL)
417		return 1;
418
419	if (data.cur_id < data.parts->num_part)
420		data.parts->pscheme->get_part_info(data.parts, data.cur_id,
421		    &data.cur);
422
423	ptn_menu = new_menu(NULL, opts, num_opts,
424		15, 2, 0, 54,
425		MC_SUBMENU | MC_SCROLL | MC_NOCLEAR,
426		draw_outer_ptn_header, draw_outer_ptn_line, NULL,
427		NULL, MSG_Partition_OK);
428	if (ptn_menu == -1) {
429		free(opts);
430		return 1;
431	}
432
433	process_menu(ptn_menu, &data);
434	free_menu(ptn_menu);
435	free(opts);
436
437	if (!data.cancelled && data.cur_id < data.parts->num_part)
438		if (!data.parts->pscheme->set_part_info(data.parts,
439		    data.cur_id, &data.cur, &err))
440			err_msg_win(err);
441
442	if (data.num_changed) {
443		menu_opts_reload(m, data.parts);
444		m->cursel = data.parts->num_part > 0 ? 0 : 2;
445		return -1;
446	}
447
448	return 0;
449}
450
451#ifndef NO_CLONES
452static int
453add_part_clone(menudesc *menu, void *arg)
454{
455	struct outer_parts_data *pdata = arg;
456	struct disk_partitions *parts = pdata->av.arg;
457	struct clone_target_menu_data data;
458	menu_ent *men;
459	int num_men, i;
460	struct disk_part_info sinfo, cinfo;
461	struct disk_partitions *csrc;
462	struct disk_part_free_space space;
463	daddr_t offset, align;
464	size_t s;
465	part_id cid;
466	struct selected_partitions selected;
467	struct single_clone_data *new_clones;
468
469	if (!select_partitions(&selected, parts))
470		return 0;
471
472	new_clones = realloc(pdata->clones,
473	    sizeof(*pdata->clones)*(pdata->num_clone_entries+1));
474	if (new_clones == NULL)
475		return 0;
476	pdata->num_clone_entries++;
477	pdata->clones = new_clones;
478	new_clones += (pdata->num_clone_entries-1);
479	memset(new_clones, 0, sizeof *new_clones);
480	new_clones->clone_src = selected;
481
482	memset(&data, 0, sizeof data);
483	data.usage.parts = parts;
484
485	/* if we already have partitions, ask for the target position */
486	if (parts->num_part > 0) {
487		data.res = -1;
488		num_men = parts->num_part+1;
489		men = calloc(num_men, sizeof *men);
490		if (men == NULL)
491			return 0;
492		for (i = 0; i < num_men; i++)
493			men[i].opt_action = clone_target_select;
494		men[num_men-1].opt_name = MSG_clone_target_end;
495
496		data.usage.menu = new_menu(MSG_clone_target_hdr,
497		    men, num_men, 3, 2, 0, 65, MC_SCROLL,
498		    NULL, draw_outer_part_line, NULL, NULL, MSG_cancel);
499		process_menu(data.usage.menu, &data);
500		free_menu(data.usage.menu);
501		free(men);
502
503		if (data.res < 0)
504			goto err;
505	} else {
506		data.res = 0;
507	}
508
509	/* find selected offset from data.res and insert clones there */
510	align = parts->pscheme->get_part_alignment(parts);
511	offset = -1;
512	if (data.res > 0) {
513		for (cid = 0; cid < (size_t)data.res; cid++) {
514			if (!parts->pscheme->get_part_info(parts, cid, &sinfo))
515			continue;
516			offset = sinfo.start + sinfo.size;
517		}
518	} else {
519		offset = 0;
520	}
521
522	new_clones->clone_ids = calloc(selected.num_sel,
523	    sizeof(*new_clones->clone_ids));
524	if (new_clones->clone_ids == NULL)
525		goto err;
526	for (s = 0; s < selected.num_sel; s++) {
527		csrc = selected.selection[s].parts;
528		cid = selected.selection[s].id;
529		csrc->pscheme->get_part_info(csrc, cid, &sinfo);
530		if (!parts->pscheme->adapt_foreign_part_info(
531		    parts, &cinfo, csrc->pscheme, &sinfo))
532			continue;
533		size_t cnt = parts->pscheme->get_free_spaces(
534		    parts, &space, 1, cinfo.size-align, align,
535		    offset, -1);
536		if (cnt == 0)
537			continue;
538		cinfo.start = space.start;
539		cid = parts->pscheme->add_partition(
540		    parts, &cinfo, NULL);
541		new_clones->clone_ids[s] = cid;
542		if (cid == NO_PART)
543			continue;
544		parts->pscheme->get_part_info(parts, cid, &cinfo);
545		offset = rounddown(cinfo.start+cinfo.size+align, align);
546	}
547
548	/* reload menu and start again */
549	menu_opts_reload(menu, parts);
550	menu->cursel = parts->num_part+1;
551	if (parts->num_part == 0)
552		menu->cursel++;
553	return -1;
554
555err:
556	free_selected_partitions(&selected);
557	return -1;
558}
559#endif
560
561static int
562add_part_entry(menudesc *m, void *arg)
563{
564	struct outer_parts_data *pdata = arg;
565	struct part_edit_info data = { .parts = pdata->av.arg,
566	    .first_custom_opt = PTN_OPTS_COMMON };
567	int ptn_menu;
568	daddr_t ptn_alignment, start;
569	menu_ent *opts;
570	size_t num_opts;
571	struct disk_part_free_space space;
572	const char *err;
573
574	opts = fill_part_edit_menu_opts(data.parts, false, ptn_add_opts,
575	    __arraycount(ptn_add_opts), &num_opts);
576	if (opts == NULL)
577		return 1;
578
579	ptn_alignment = data.parts->pscheme->get_part_alignment(data.parts);
580	start = pm->ptstart > 0 ? pm->ptstart : -1;
581	data.cur_id = NO_PART;
582	memset(&data.cur, 0, sizeof(data.cur));
583	data.cur.nat_type = data.parts->pscheme->
584	    get_generic_part_type(PT_root);
585	if (data.parts->pscheme->get_free_spaces(data.parts, &space, 1,
586	    max(sizemult, ptn_alignment), ptn_alignment, start, -1) > 0) {
587		data.cur.start = space.start;
588		data.cur.size = space.size;
589	} else {
590		return 0;
591	}
592
593	ptn_menu = new_menu(NULL, opts, num_opts,
594		15, -1, 0, 54,
595		MC_SUBMENU | MC_SCROLL | MC_NOCLEAR,
596		draw_outer_ptn_header, draw_outer_ptn_line, NULL,
597		NULL, MSG_Partition_OK);
598	if (ptn_menu == -1) {
599		free(opts);
600		return 1;
601	}
602
603	process_menu(ptn_menu, &data);
604	free_menu(ptn_menu);
605	free(opts);
606
607	if (!data.cancelled &&
608	    data.parts->pscheme->add_partition(data.parts, &data.cur, &err)
609	    == NO_PART)
610		err_msg_win(err);
611
612	menu_opts_reload(m, data.parts);
613	m->cursel = data.parts->num_part+1;
614	if (data.parts->num_part == 0)
615		m->cursel++;
616	return -1;
617}
618
619static void
620draw_outer_ptn_line(menudesc *m, int line, void *arg)
621{
622	struct part_edit_info *marg = arg;
623	char value[STRSIZE];
624	static int col_width;
625	static const char *yes, *no, *ptn_type, *ptn_start, *ptn_size,
626	    *ptn_end, *ptn_install;
627
628	if (yes == NULL) {
629		int i;
630
631#define CHECK(str)	i = strlen(str); if (i > col_width) col_width = i;
632
633		col_width = 0;
634		yes = msg_string(MSG_Yes); CHECK(yes);
635		no = msg_string(MSG_No); CHECK(no);
636		ptn_type = msg_string(MSG_ptn_type); CHECK(ptn_type);
637		ptn_start = msg_string(MSG_ptn_start); CHECK(ptn_start);
638		ptn_size = msg_string(MSG_ptn_size); CHECK(ptn_size);
639		ptn_end = msg_string(MSG_ptn_end); CHECK(ptn_end);
640		ptn_install = msg_string(MSG_ptn_install); CHECK(ptn_install);
641
642#undef CHECK
643
644		for (size_t n = 0;
645		    n < marg->parts->pscheme->custom_attribute_count; n++) {
646			i = strlen(msg_string(
647			    marg->parts->pscheme->custom_attributes[n].label));
648			if (i > col_width)
649				col_width = i;
650		}
651		col_width += 3;
652	}
653
654	if (line >= marg->first_custom_opt) {
655		size_t attr_no = line-marg->first_custom_opt;
656		marg->parts->pscheme->format_custom_attribute(
657		    marg->parts, marg->cur_id, attr_no, &marg->cur,
658		    value, sizeof(value));
659		wprintw(m->mw, "%*s : %s", col_width,
660		    msg_string(
661		    marg->parts->pscheme->custom_attributes[attr_no].label),
662		    value);
663		return;
664	}
665
666	switch (line) {
667	case PTN_OPT_TYPE:
668		wprintw(m->mw, "%*s : %s", col_width, ptn_type,
669		    marg->cur.nat_type != NULL
670		    ? marg->cur.nat_type->description
671		    : "-");
672		break;
673	case PTN_OPT_START:
674		wprintw(m->mw, "%*s : %" PRIu64 " %s", col_width, ptn_start,
675		    marg->cur.start / (daddr_t)sizemult, multname);
676		break;
677	case PTN_OPT_SIZE:
678		wprintw(m->mw, "%*s : %" PRIu64 " %s", col_width, ptn_size,
679		    marg->cur.size / (daddr_t)sizemult, multname);
680		break;
681	case PTN_OPT_END:
682		wprintw(m->mw, "%*s : %" PRIu64 " %s", col_width, ptn_end,
683		    (marg->cur.start + marg->cur.size - 1) / (daddr_t)sizemult,
684		    multname);
685		break;
686	case PTN_OPT_INSTALL:
687		wprintw(m->mw, "%*s : %s", col_width, ptn_install,
688		    (marg->cur.nat_type->generic_ptype == PT_root &&
689		    (marg->cur.flags & PTI_INSTALL_TARGET)) ? yes : no);
690		break;
691	}
692
693}
694
695static void
696draw_outer_ptn_header(menudesc *m, void *arg)
697{
698	struct part_edit_info *marg = arg;
699	size_t attr_no;
700	bool may_change_type;
701
702#define DISABLE(opt,cond) \
703	if (cond) \
704		m->opts[opt].opt_flags |= OPT_IGNORE; \
705	else \
706		m->opts[opt].opt_flags &= ~OPT_IGNORE;
707
708	/* e.g. MBR extended partitions can only change if empty */
709	may_change_type = marg->cur_id == NO_PART
710	     || marg->parts->pscheme->part_type_can_change == NULL
711	     || marg->parts->pscheme->part_type_can_change(
712		    marg->parts, marg->cur_id);
713
714	DISABLE(PTN_OPT_TYPE, !may_change_type);
715	if (!may_change_type && m->cursel == PTN_OPT_TYPE)
716		m->cursel++;
717	if (marg->cur_id != NO_PART) {
718		for (int i = 0; i < m->numopts; i++) {
719			if (m->opts[i].opt_action == delete_part) {
720				DISABLE(i, !may_change_type);
721			}
722		}
723	}
724
725	/* Can only install into NetBSD partition */
726	if (marg->cur_id != NO_PART) {
727		DISABLE(PTN_OPT_INSTALL, marg->cur.nat_type == NULL
728		    || marg->cur.nat_type->generic_ptype != PT_root);
729	}
730
731	if (marg->cur_id == NO_PART)
732		return;
733
734	for (attr_no = 0; attr_no <
735	    marg->parts->pscheme->custom_attribute_count; attr_no++) {
736		bool writable =
737		    marg->parts->pscheme->custom_attribute_writable(
738			marg->parts, marg->cur_id, attr_no);
739		DISABLE(attr_no+marg->first_custom_opt, !writable);
740	}
741}
742
743static void
744draw_outer_part_line(menudesc *m, int opt, void *arg)
745{
746	struct outer_parts_data *pdata = arg;
747	struct disk_partitions *parts = pdata->av.arg;
748	int len;
749	part_id pno = opt;
750	struct disk_part_info info;
751	char buf[SSTRSIZE], *astr, colval[STRSIZE], line[STRSIZE];
752	size_t astr_avail, x;
753	static char install_flag = 0;
754
755#define PART_ROW_USED_FMT	"%13" PRIu64 " %13" PRIu64 " %-4s"
756
757	len = snprintf(0, 0, PART_ROW_USED_FMT, (daddr_t)0, (daddr_t)0, "");
758
759	if (pno >= parts->num_part ||
760	    !parts->pscheme->get_part_info(parts, pno, &info)) {
761		wprintw(m->mw, "%*s", len, "");
762		// XXX
763		return;
764	}
765
766	if ((info.flags & PTI_INSTALL_TARGET) &&
767	    info.nat_type->generic_ptype == PT_root) {
768		if (install_flag == 0)
769			install_flag = msg_string(MSG_install_flag)[0];
770		astr_avail = sizeof(buf)-1;
771		buf[0] = install_flag;
772		buf[1] = 0;
773		astr = buf+1;
774	} else {
775		buf[0] = 0;
776		astr = buf;
777		astr_avail = sizeof(buf);
778	}
779	if (parts->pscheme->get_part_attr_str != NULL)
780		parts->pscheme->get_part_attr_str(parts, pno, astr,
781		    astr_avail);
782
783	daddr_t start = info.start / sizemult;
784	daddr_t size = info.size / sizemult;
785	wprintw(m->mw, PART_ROW_USED_FMT,
786	    start, size, buf);
787
788	line[0] = 0; x = 0;
789	for (size_t col = 0; col < parts->pscheme->edit_columns_count; col++) {
790		if (parts->pscheme->format_partition_table_str(parts, pno,
791		    col, colval, sizeof(colval)) && colval[0] != 0
792		    && x < sizeof(line)-2) {
793			for (size_t i = strlen(line); i < x; i++)
794				line[i] = ' ';
795			line[x] = ' ';
796			strlcpy(line+x+1, colval, sizeof(line)-x-1);
797		}
798		x += parts->pscheme->edit_columns[col].width + 1;
799	}
800	wprintw(m->mw, "%s", line);
801}
802
803static int
804part_edit_abort(menudesc *m, void *arg)
805{
806	struct outer_parts_data *pdata = arg;
807
808	pdata->av.rv = -1;
809	return 0;
810}
811
812static menu_ent *
813outer_fill_part_menu_opts(const struct disk_partitions *parts, size_t *cnt)
814{
815	menu_ent *opts, *op;
816	size_t num_opts;
817	size_t i;
818	bool may_add;
819
820	may_add = parts->pscheme->can_add_partition(parts);
821	num_opts = 3 + parts->num_part;
822#ifndef NO_CLONES
823	num_opts++;
824#endif
825	if (parts->num_part == 0)
826		num_opts++;
827	if (may_add)
828		num_opts++;
829	opts = calloc(num_opts, sizeof *opts);
830	if (opts == NULL) {
831		*cnt = 0;
832		return NULL;
833	}
834
835	/* add all exisiting partitions */
836	for (op = opts, i = 0; i < parts->num_part && i < (num_opts-2);
837	    op++, i++) {
838		op->opt_flags = OPT_SUB;
839		op->opt_action = edit_part_entry;
840	}
841
842	/* if empty, hint that partitions are missing */
843	if (parts->num_part == 0) {
844		op->opt_name = MSG_nopart;
845		op->opt_flags = OPT_IGNORE|OPT_NOSHORT;
846		op++;
847	}
848
849	/* separator line between partitions and actions */
850	op->opt_name = outer_part_sep_line;
851	op->opt_flags = OPT_IGNORE|OPT_NOSHORT;
852	op++;
853
854	/* followed by new partition adder */
855	if (may_add) {
856		op->opt_name = MSG_addpart;
857		op->opt_flags = OPT_SUB;
858		op->opt_action = add_part_entry;
859		op++;
860	}
861
862#ifndef NO_CLONES
863	/* and a partition cloner */
864	op->opt_name = MSG_clone_from_elsewhere;
865	op->opt_action = add_part_clone;
866	op++;
867#endif
868
869	/* and unit changer */
870	op->opt_name = MSG_askunits;
871	op->opt_menu = MENU_sizechoice;
872	op->opt_flags = OPT_SUB;
873	op->opt_action = NULL;
874	op++;
875
876	/* and abort option */
877	op->opt_name = MSG_cancel;
878	op->opt_flags = OPT_EXIT;
879	op->opt_action = part_edit_abort;
880	op++;
881
882	/* counts are consistent? */
883	assert((op - opts) >= 0 && (size_t)(op - opts) == num_opts);
884
885	*cnt = num_opts;
886	return opts;
887}
888
889static void
890draw_outer_part_header(menudesc *m, void *arg)
891{
892	struct outer_parts_data *pdata = arg;
893	struct disk_partitions *parts = pdata->av.arg;
894	char start[SSTRSIZE], size[SSTRSIZE], col[SSTRSIZE],
895	    *disk_info, total[SSTRSIZE], avail[SSTRSIZE];
896	size_t sep;
897	const char *args[3];
898
899	msg_display_subst(MSG_editparttable, 4,
900	    parts->disk,
901	    msg_string(parts->pscheme->name),
902	    msg_string(parts->pscheme->short_name),
903	    parts->pscheme->part_flag_desc ?
904		msg_string(parts->pscheme->part_flag_desc)
905		: "");
906
907	snprintf(total, sizeof(total), "%" PRIu64 " %s",
908	    parts->disk_size / sizemult, multname);
909	snprintf(avail, sizeof(total), "%" PRIu64 " %s",
910	    parts->free_space / sizemult, multname);
911	args[0] = parts->disk;
912	args[1] = total;
913	args[2] = avail;
914	disk_info = str_arg_subst(msg_string(MSG_part_header), 3, args);
915	msg_table_add(disk_info);
916	free(disk_info);
917
918
919	strcpy(outer_part_sep_line, "------------- ------------- ----");
920	sep = strlen(outer_part_sep_line);
921	snprintf(start, sizeof(start), "%s(%s)",
922	    msg_string(MSG_part_header_col_start), multname);
923	snprintf(size, sizeof(size), "%s(%s)",
924	    msg_string(MSG_part_header_col_size), multname);
925	snprintf(outer_part_title, sizeof(outer_part_title),
926	    "   %13s %13s %-4s", start, size,
927	    msg_string(MSG_part_header_col_flag));
928
929	for (size_t i = 0; i < parts->pscheme->edit_columns_count; i++) {
930		char *np = outer_part_sep_line+sep;
931		unsigned int w = parts->pscheme->edit_columns[i].width;
932		snprintf(col, sizeof(col), " %*s", -w,
933		    msg_string(parts->pscheme->edit_columns[i].title));
934		strlcat(outer_part_title, col, sizeof(outer_part_title));
935		if (sep < sizeof(outer_part_sep_line)-1) {
936			*np++ = ' ';
937			sep++;
938		}
939		for (unsigned int p = 0; p < w &&
940		    sep < sizeof(outer_part_sep_line)-1; p++)
941			*np++ = '-', sep++;
942		*np = 0;
943	}
944
945	strlcat(outer_part_title, "\n   ", sizeof(outer_part_title));
946	strlcat(outer_part_title, outer_part_sep_line,
947	    sizeof(outer_part_title));
948
949	msg_table_add("\n\n");
950}
951
952/*
953 * Use the whole disk for NetBSD, but (if any) create required helper
954 * partitions (usually for booting and stuff).
955 */
956bool
957parts_use_wholedisk(struct disk_partitions *parts,
958    size_t add_ext_parts, const struct disk_part_info *ext_parts)
959{
960	part_id nbsd;
961	struct disk_part_info info;
962	struct disk_part_free_space space;
963	daddr_t align, start;
964	size_t i;
965
966	parts->pscheme->delete_all_partitions(parts);
967	align = parts->pscheme->get_part_alignment(parts);
968	start = pm->ptstart > 0 ? pm->ptstart : -1;
969
970	if (ext_parts != NULL) {
971		for (i = 0; i < add_ext_parts; i++) {
972			info = ext_parts[i];
973			if (parts->pscheme->get_free_spaces(parts, &space,
974			    1, info.size, align, start, -1) != 1)
975				return false;
976			info.start = space.start;
977			if (info.nat_type == NULL)
978				info.nat_type = parts->pscheme->
979				    get_fs_part_type(PT_undef, info.fs_type,
980				    info.fs_sub_type);
981			if (parts->pscheme->add_partition(parts, &info, NULL)
982			    == NO_PART)
983				return false;
984		}
985	}
986
987	if (parts->pscheme->get_free_spaces(parts, &space, 1, 3*align,
988	    align, start, -1) != 1)
989		return false;
990
991	memset(&info, 0, sizeof(info));
992	info.start = space.start;
993	info.size = space.size;
994	info.nat_type = parts->pscheme->get_generic_part_type(PT_root);
995	nbsd = parts->pscheme->add_partition(parts, &info, NULL);
996
997	if (nbsd == NO_PART)
998		return false;
999
1000	if (!parts->pscheme->get_part_info(parts, nbsd, &info))
1001		return false;
1002
1003	if (parts->pscheme->secondary_scheme != NULL) {
1004		/* force empty secondary partitions */
1005		parts->pscheme->secondary_partitions(parts, info.start, true);
1006	}
1007
1008	return true;
1009}
1010
1011static int
1012set_keep_existing(menudesc *m, void *arg)
1013{
1014	((arg_rep_int*)arg)->rv = LY_KEEPEXISTING;
1015	return 0;
1016}
1017
1018static int
1019set_use_only_part(menudesc *m, void *arg)
1020{
1021	((arg_rep_int*)arg)->rv = LY_SETSIZES;
1022	return 0;
1023}
1024
1025static int
1026set_use_entire_disk(menudesc *m, void *arg)
1027{
1028	((arg_rep_int*)arg)->rv = LY_USEFULL;
1029	return 0;
1030}
1031
1032static enum layout_type
1033ask_fullpart(struct disk_partitions *parts)
1034{
1035	arg_rep_int ai;
1036	const char *args[2];
1037	int menu;
1038	size_t num_opts;
1039	menu_ent options[3], *opt;
1040	daddr_t start, size;
1041
1042	args[0] = msg_string(pm->parts->pscheme->name);
1043	args[1] = msg_string(pm->parts->pscheme->short_name);
1044	ai.args.argv = args;
1045	ai.args.argc = 2;
1046	ai.rv = LY_SETSIZES;
1047
1048	memset(options, 0, sizeof(options));
1049	num_opts = 0;
1050	opt = &options[0];
1051	if (parts->pscheme->guess_install_target != NULL &&
1052	    parts->pscheme->guess_install_target(parts, &start, &size)) {
1053		opt->opt_name = MSG_Keep_existing_partitions;
1054		opt->opt_flags = OPT_EXIT;
1055		opt->opt_action = set_keep_existing;
1056		opt++;
1057		num_opts++;
1058	}
1059	opt->opt_name = MSG_Use_only_part_of_the_disk;
1060	opt->opt_flags = OPT_EXIT;
1061	opt->opt_action = set_use_only_part;
1062	opt++;
1063	num_opts++;
1064
1065	opt->opt_name = MSG_Use_the_entire_disk;
1066	opt->opt_flags = OPT_EXIT;
1067	opt->opt_action = set_use_entire_disk;
1068	opt++;
1069	num_opts++;
1070
1071	menu = new_menu(MSG_Select_your_choice, options, num_opts,
1072	    -1, -10, 0, 0, MC_NOEXITOPT, NULL, NULL, NULL, NULL, NULL);
1073	if (menu != -1) {
1074		get_menudesc(menu)->expand_act = expand_all_option_texts;
1075		process_menu(menu, &ai);
1076		free_menu(menu);
1077	}
1078
1079	return ai.rv;
1080}
1081
1082/*
1083 * return (see post_edit_verify):
1084 *  0 -> abort
1085 *  1 -> re-edit
1086 *  2 -> continue installation
1087 */
1088static int
1089verify_outer_parts(struct disk_partitions *parts, bool quiet)
1090{
1091	part_id i;
1092	int num_bsdparts;
1093	daddr_t first_bsdstart, first_bsdsize, inst_start, inst_size;
1094
1095	first_bsdstart = inst_start = -1;
1096	first_bsdsize = inst_size = 0;
1097	num_bsdparts = 0;
1098	for (i = 0; i < parts->num_part; i++) {
1099		struct disk_part_info info;
1100		if (!parts->pscheme->get_part_info(parts, i, &info))
1101			continue;
1102		if (!(info.flags & PTI_SEC_CONTAINER))
1103			continue;
1104		if (info.nat_type->generic_ptype != PT_root)
1105			continue;
1106		num_bsdparts++;
1107
1108		if (first_bsdstart < 0) {
1109			first_bsdstart = info.start;
1110			first_bsdsize = info.size;
1111		}
1112		if (inst_start<  0 && (info.flags & PTI_INSTALL_TARGET)) {
1113			inst_start = info.start;
1114			inst_size = info.size;
1115		}
1116	}
1117
1118	if (num_bsdparts == 0 ||
1119	    (num_bsdparts > 1 && inst_start < 0)) {
1120		if (quiet && num_bsdparts == 0)
1121			return 0;
1122		if (quiet && parts->pscheme->guess_install_target &&
1123		    parts->pscheme->guess_install_target(parts,
1124		    &inst_start, &inst_size)) {
1125			pm->ptstart = inst_start;
1126			pm->ptsize = inst_size;
1127		} else {
1128			if (num_bsdparts == 0)
1129				msg_display_subst(MSG_nobsdpart, 2,
1130				    msg_string(parts->pscheme->name),
1131				    msg_string(parts->pscheme->short_name));
1132			else
1133				msg_display_subst(MSG_multbsdpart, 2,
1134				    msg_string(parts->pscheme->name),
1135				    msg_string(parts->pscheme->short_name));
1136
1137			return ask_reedit(parts);
1138		}
1139	}
1140
1141	if (pm->ptstart == 0) {
1142		if (inst_start > 0) {
1143			pm->ptstart = inst_start;
1144			pm->ptsize = inst_size;
1145		} else if (first_bsdstart > 0) {
1146			pm->ptstart = first_bsdstart;
1147			pm->ptsize = first_bsdsize;
1148		} else if (parts->pscheme->guess_install_target &&
1149			   parts->pscheme->guess_install_target(
1150			   parts, &inst_start, &inst_size)) {
1151			pm->ptstart = inst_start;
1152			pm->ptsize = inst_size;
1153		}
1154	}
1155
1156	/*
1157	 * post_edit_verify returns:
1158	 *  0 -> abort
1159	 *  1 -> re-edit
1160	 *  2 -> continue installation
1161	 */
1162	if (parts->pscheme->post_edit_verify)
1163		return parts->pscheme->post_edit_verify(parts, quiet);
1164
1165	return 2;
1166}
1167
1168static bool
1169ask_outer_partsizes(struct disk_partitions *parts)
1170{
1171	int j;
1172	int part_menu;
1173	size_t num_opts;
1174#ifndef NO_CLONES
1175	size_t i, ci;
1176#endif
1177	struct outer_parts_data data;
1178
1179	part_menu_opts = outer_fill_part_menu_opts(parts, &num_opts);
1180	part_menu = new_menu(outer_part_title, part_menu_opts, num_opts,
1181			0, -1, 15, 70,
1182			MC_NOBOX|MC_ALWAYS_SCROLL|MC_NOCLEAR|MC_CONTINUOUS,
1183			draw_outer_part_header, draw_outer_part_line, NULL,
1184			NULL, MSG_Partition_table_ok);
1185	if (part_menu == -1) {
1186		free(part_menu_opts);
1187		return false;
1188	}
1189
1190	/* Default to MB, and use bios geometry for cylinder size */
1191	set_default_sizemult(parts->disk, MEG, parts->bytes_per_sector);
1192	if (pm->current_cylsize == 0)
1193		pm->current_cylsize = 16065;	/* noone cares nowadays */
1194	memset(&data, 0, sizeof data);
1195	data.av.arg = parts;
1196
1197	for (;;) {
1198		data.av.rv = 0;
1199		process_menu(part_menu, &data);
1200		if (data.av.rv < 0)
1201			break;
1202
1203		j = verify_outer_parts(parts, false);
1204		if (j == 0) {
1205			data.av.rv = -1;
1206			return false;
1207		} else if (j == 1) {
1208			continue;
1209		}
1210		break;
1211	}
1212
1213#ifndef NO_CLONES
1214	/* handle cloned partitions content copies now */
1215	for (i = 0; i < data.num_clone_entries; i++) {
1216		for (ci = 0; ci < data.clones[i].clone_src.num_sel; ci++) {
1217			if (data.clones[i].clone_src.with_data)
1218				clone_partition_data(parts,
1219				    data.clones[i].clone_ids[ci],
1220				    data.clones[i].clone_src.selection[ci].
1221				    parts,
1222				    data.clones[i].clone_src.selection[ci].id);
1223		}
1224	}
1225
1226	/* free clone data */
1227	if (data.clones) {
1228		for (i = 0; i < data.num_clone_entries; i++)
1229			free_selected_partitions(&data.clones[i].clone_src);
1230		free(data.clones);
1231	}
1232#endif
1233
1234	free_menu(part_menu);
1235	free(part_menu_opts);
1236
1237	return data.av.rv == 0;
1238}
1239
1240bool
1241edit_outer_parts(struct disk_partitions *parts)
1242{
1243	part_id i;
1244	enum layout_type layout;
1245	int num_foreign_parts;
1246
1247	/* If targeting a wedge, do not ask for further partitioning */
1248	if (pm && (pm->no_part || pm->no_mbr))
1249		return true;
1250
1251	/* Make sure parts has been properly initialized */
1252	assert(parts && parts->pscheme);
1253
1254	if (parts->pscheme->secondary_scheme == NULL)
1255		return true;	/* no outer parts */
1256
1257	if (partman_go) {
1258		layout = LY_SETSIZES;
1259	} else {
1260		/* Ask full/part */
1261		const struct disk_partitioning_scheme *sec =
1262		    parts->pscheme->secondary_scheme;
1263
1264		uint64_t m_size =
1265		    DEFROOTSIZE + DEFSWAPSIZE + DEFUSRSIZE + XNEEDMB;
1266		char min_size[5], build_size[5];
1267		const char
1268		    *prim_name = msg_string(parts->pscheme->name),
1269		    *prim_short = msg_string(parts->pscheme->short_name),
1270		    *sec_name = msg_string(sec->name),
1271		    *sec_short = msg_string(sec->short_name);
1272
1273		humanize_number(min_size, sizeof(min_size),
1274		    m_size * MEG,
1275		    "", HN_AUTOSCALE, HN_B | HN_NOSPACE | HN_DECIMAL);
1276		humanize_number(build_size, sizeof(build_size),
1277		     SYSTEM_BUILD_SIZE * MEG, "", HN_AUTOSCALE,
1278		     HN_B | HN_NOSPACE | HN_DECIMAL);
1279
1280		msg_display_subst(MSG_fullpart, 7,
1281		    pm->diskdev,
1282		    prim_name, sec_name,
1283		    prim_short, sec_short,
1284		    min_size, build_size);
1285		msg_display_add("\n\n");
1286
1287		layout = ask_fullpart(parts);
1288	}
1289
1290	if (layout == LY_USEFULL) {
1291		struct disk_part_info info;
1292
1293		/* Count nonempty, non-BSD partitions. */
1294		num_foreign_parts = 0;
1295		for (i = 0; i < parts->num_part; i++) {
1296			if (!parts->pscheme->get_part_info(parts, i, &info))
1297				continue;
1298			if (info.size == 0)
1299				continue;
1300			if (info.flags & (PTI_PSCHEME_INTERNAL|PTI_RAW_PART))
1301				continue;
1302			if (info.nat_type != NULL
1303			    && info.nat_type->generic_ptype != PT_root
1304			    && info.nat_type->generic_ptype != PT_swap)
1305				num_foreign_parts++;
1306		}
1307
1308		/* Ask if we really want to blow away non-NetBSD stuff */
1309		if (num_foreign_parts > 0) {
1310			msg_display(MSG_ovrwrite);
1311			if (!ask_noyes(NULL)) {
1312				if (logfp)
1313					(void)fprintf(logfp,
1314					    "User answered no to destroy "
1315					    "other data, aborting.\n");
1316				return false;
1317			}
1318		}
1319		if (!md_parts_use_wholedisk(parts)) {
1320			hit_enter_to_continue(MSG_No_free_space, NULL);
1321			return false;
1322		}
1323		if (parts->pscheme->post_edit_verify) {
1324			return
1325			    parts->pscheme->post_edit_verify(parts, true) == 2;
1326		}
1327		return true;
1328	} else if (layout == LY_SETSIZES) {
1329		return ask_outer_partsizes(parts);
1330	} else {
1331		return verify_outer_parts(parts, true) == 2;
1332	}
1333}
1334
1335static int
1336set_part_scheme(menudesc *m, void *arg)
1337{
1338	size_t *res = arg;
1339
1340	*res = (size_t)m->cursel;
1341	return 1;
1342}
1343
1344const struct disk_partitioning_scheme *
1345select_part_scheme(
1346	struct pm_devs *dev,
1347	const struct disk_partitioning_scheme *skip,
1348	bool bootable,
1349	const char *hdr)
1350{
1351	int ps_menu = -1;
1352	menu_ent *opt;
1353	char **str, *ms = NULL;
1354	const struct disk_partitioning_scheme **options, *res;
1355	const char *title;
1356	size_t ndx, selected = ~0U, used;
1357	const struct disk_partitioning_scheme *p;
1358	bool showing_limit = false;
1359
1360	if (hdr == NULL)
1361		hdr = MSG_select_part_scheme;
1362
1363	opt = calloc(num_available_part_schemes, sizeof *opt);
1364	if (!opt)
1365		return NULL;
1366	str = calloc(num_available_part_schemes, sizeof *str);
1367	if (!str) {
1368		free(opt);
1369		return NULL;
1370	}
1371	options = calloc(num_available_part_schemes, sizeof *options);
1372	if (!options) {
1373		free(str);
1374		free(opt);
1375		return NULL;
1376	}
1377
1378	for (used = 0, ndx = 0; ndx < num_available_part_schemes; ndx++) {
1379		p = available_part_schemes[ndx];
1380		/*
1381		 * Do not match exactly, we want to skip all lookalikes
1382		 * too (only_disklabel_parts vs. disklabel_parts)
1383		 */
1384		if (skip != NULL &&
1385		    p->create_new_for_disk == skip->create_new_for_disk)
1386			continue;
1387		if (bootable && p->have_boot_support != NULL &&
1388		    !p->have_boot_support(dev->diskdev))
1389			continue;
1390#ifdef HAVE_MBR
1391		if (dev->no_mbr && p->name == MSG_parttype_mbr)
1392			continue;
1393#endif
1394		if (p->size_limit && dev->dlsize*(dev->sectorsize/512) >
1395		    p->size_limit) {
1396			char buf[255], hum_lim[5];
1397
1398			humanize_number(hum_lim, sizeof(hum_lim),
1399			    (uint64_t)p->size_limit*512UL,
1400			    "", HN_AUTOSCALE, HN_B | HN_NOSPACE | HN_DECIMAL);
1401			sprintf(buf, "%s [%s %s]", msg_string(p->name),
1402			    msg_string(MSG_size_limit), hum_lim);
1403			str[used] = strdup(buf);
1404			showing_limit = true;
1405		} else {
1406			str[used] = strdup(msg_string(p->name));
1407		}
1408		if (!str[used])
1409			goto out;
1410
1411		opt[used].opt_name = str[used];
1412		opt[used].opt_action = set_part_scheme;
1413		options[used] = p;
1414		used++;
1415	}
1416
1417	/* do not bother to ask if there are no options */
1418	if (used <= 1) {
1419		selected = (used == 1) ? 0 : ~0U;
1420		goto out;
1421	}
1422
1423	if (showing_limit) {
1424		char hum_lim[5], *tmp;
1425		size_t total;
1426
1427		const char *p1 = msg_string(hdr);
1428		const char *p2 = msg_string(MSG_select_part_limit);
1429
1430		humanize_number(hum_lim, sizeof(hum_lim),
1431		    (uint64_t)dev->dlsize*dev->sectorsize, "",
1432		    HN_AUTOSCALE, HN_B | HN_NOSPACE | HN_DECIMAL);
1433
1434		const char *args[] = { dev->diskdev, hum_lim };
1435		char *p3 = str_arg_subst(msg_string(MSG_part_limit_disksize),
1436		    __arraycount(args), args);
1437
1438		total = strlen(p1) + strlen(p2) + strlen(p3)
1439		    + sizeof(hum_lim) + 5;
1440		ms = tmp = malloc(total);
1441		title = tmp;
1442		strcpy(tmp, p1); tmp += strlen(p1);
1443		*tmp++ = '\n'; *tmp++ = '\n';
1444		strcpy(tmp, p2); tmp += strlen(p2);
1445		*tmp++ = '\n'; *tmp++ = '\n';
1446		strcpy(tmp, p3);
1447		free(p3);
1448		assert(strlen(ms) < total);
1449	} else {
1450		title = msg_string(hdr);
1451	}
1452	ps_menu = new_menu(title, opt, used,
1453	    5, 5, 0, 0, 0, NULL, NULL, NULL, NULL, MSG_exit_menu_generic);
1454	if (ps_menu != -1)
1455		process_menu(ps_menu, &selected);
1456out:
1457	res = selected >= used ? NULL : options[selected];
1458	for (ndx = 0; ndx < used; ndx++)
1459		free(str[ndx]);
1460	if (showing_limit && ms)
1461		free(ms);
1462	free(str);
1463	free(opt);
1464	free(options);
1465	if (ps_menu != -1)
1466		free_menu(ps_menu);
1467
1468	return res;
1469}
1470