xref: /netbsd-src/usr.sbin/sysinst/util.c (revision 7330f729ccf0bd976a06f95fad452fe774fc7fd1)
1 /*	$NetBSD: util.c,v 1.34 2019/10/04 21:36:02 mrg Exp $	*/
2 
3 /*
4  * Copyright 1997 Piermont Information Systems Inc.
5  * All rights reserved.
6  *
7  * Written by Philip A. Nelson for Piermont Information Systems Inc.
8  *
9  * Redistribution and use in source and binary forms, with or without
10  * modification, are permitted provided that the following conditions
11  * are met:
12  * 1. Redistributions of source code must retain the above copyright
13  *    notice, this list of conditions and the following disclaimer.
14  * 2. Redistributions in binary form must reproduce the above copyright
15  *    notice, this list of conditions and the following disclaimer in the
16  *    documentation and/or other materials provided with the distribution.
17  * 3. The name of Piermont Information Systems Inc. may not be used to endorse
18  *    or promote products derived from this software without specific prior
19  *    written permission.
20  *
21  * THIS SOFTWARE IS PROVIDED BY PIERMONT INFORMATION SYSTEMS INC. ``AS IS''
22  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24  * ARE DISCLAIMED. IN NO EVENT SHALL PIERMONT INFORMATION SYSTEMS INC. BE
25  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
31  * THE POSSIBILITY OF SUCH DAMAGE.
32  *
33  */
34 
35 /* util.c -- routines that don't really fit anywhere else... */
36 
37 #include <assert.h>
38 #include <inttypes.h>
39 #include <stdio.h>
40 #include <stdarg.h>
41 #include <string.h>
42 #include <unistd.h>
43 #include <sys/mount.h>
44 #include <sys/dkio.h>
45 #include <sys/ioctl.h>
46 #include <sys/types.h>
47 #include <sys/param.h>
48 #include <sys/sysctl.h>
49 #include <sys/stat.h>
50 #include <sys/statvfs.h>
51 #include <isofs/cd9660/iso.h>
52 #include <curses.h>
53 #include <err.h>
54 #include <errno.h>
55 #include <dirent.h>
56 #include <util.h>
57 #include "defs.h"
58 #include "md.h"
59 #include "defsizes.h"
60 #include "msg_defs.h"
61 #include "menu_defs.h"
62 
63 #define MAX_CD_DEVS	256	/* how many cd drives do we expect to attach */
64 #define ISO_BLKSIZE	ISO_DEFAULT_BLOCK_SIZE
65 
66 static const char *msg_yes, *msg_no, *msg_all, *msg_some, *msg_none;
67 static int select_menu_width;
68 
69 static uint8_t set_status[SET_GROUP_END];
70 #define SET_VALID	0x01
71 #define SET_SELECTED	0x02
72 #define SET_SKIPPED	0x04
73 #define SET_INSTALLED	0x08
74 
75 struct  tarstats {
76 	int nselected;
77 	int nfound;
78 	int nnotfound;
79 	int nerror;
80 	int nsuccess;
81 	int nskipped;
82 } tarstats;
83 
84 distinfo dist_list[] = {
85 #ifdef SET_KERNEL_1_NAME
86 	{SET_KERNEL_1_NAME,	SET_KERNEL_1,		false, MSG_set_kernel_1, NULL},
87 #endif
88 #ifdef SET_KERNEL_2_NAME
89 	{SET_KERNEL_2_NAME,	SET_KERNEL_2,		false, MSG_set_kernel_2, NULL},
90 #endif
91 #ifdef SET_KERNEL_3_NAME
92 	{SET_KERNEL_3_NAME,	SET_KERNEL_3,		false, MSG_set_kernel_3, NULL},
93 #endif
94 #ifdef SET_KERNEL_4_NAME
95 	{SET_KERNEL_4_NAME,	SET_KERNEL_4,		false, MSG_set_kernel_4, NULL},
96 #endif
97 #ifdef SET_KERNEL_5_NAME
98 	{SET_KERNEL_5_NAME,	SET_KERNEL_5,		false, MSG_set_kernel_5, NULL},
99 #endif
100 #ifdef SET_KERNEL_6_NAME
101 	{SET_KERNEL_6_NAME,	SET_KERNEL_6,		false, MSG_set_kernel_6, NULL},
102 #endif
103 #ifdef SET_KERNEL_7_NAME
104 	{SET_KERNEL_7_NAME,	SET_KERNEL_7,		false, MSG_set_kernel_7, NULL},
105 #endif
106 #ifdef SET_KERNEL_8_NAME
107 	{SET_KERNEL_8_NAME,	SET_KERNEL_8,		false, MSG_set_kernel_8, NULL},
108 #endif
109 #ifdef SET_KERNEL_9_NAME
110 	{SET_KERNEL_9_NAME,	SET_KERNEL_9,		false, MSG_set_kernel_9, NULL},
111 #endif
112 
113 	{"modules",		SET_MODULES,		false, MSG_set_modules, NULL},
114 	{"base",		SET_BASE,		false, MSG_set_base, NULL},
115 	{"etc",			SET_ETC,		false, MSG_set_system, NULL},
116 	{"comp",		SET_COMPILER,		false, MSG_set_compiler, NULL},
117 	{"games",		SET_GAMES,		false, MSG_set_games, NULL},
118 	{"man",			SET_MAN_PAGES,		false, MSG_set_man_pages, NULL},
119 	{"misc",		SET_MISC,		false, MSG_set_misc, NULL},
120 	{"rescue",		SET_RESCUE,		false, MSG_set_rescue, NULL},
121 	{"tests",		SET_TESTS,		false, MSG_set_tests, NULL},
122 	{"text",		SET_TEXT_TOOLS,		false, MSG_set_text_tools, NULL},
123 
124 	{NULL,			SET_GROUP,		false, MSG_set_X11, NULL},
125 	{"xbase",		SET_X11_BASE,		false, MSG_set_X11_base, NULL},
126 	{"xcomp",		SET_X11_PROG,		false, MSG_set_X11_prog, NULL},
127 	{"xetc",		SET_X11_ETC,		false, MSG_set_X11_etc, NULL},
128 	{"xfont",		SET_X11_FONTS,		false, MSG_set_X11_fonts, NULL},
129 	{"xserver",		SET_X11_SERVERS,	false, MSG_set_X11_servers, NULL},
130 	{NULL,			SET_GROUP_END,		false, NULL, NULL},
131 
132 #ifdef SET_MD_1_NAME
133 	{SET_MD_1_NAME,		SET_MD_1,		false, MSG_set_md_1, NULL},
134 #endif
135 #ifdef SET_MD_2_NAME
136 	{SET_MD_2_NAME,		SET_MD_2,		false, MSG_set_md_2, NULL},
137 #endif
138 #ifdef SET_MD_3_NAME
139 	{SET_MD_3_NAME,		SET_MD_3,		false, MSG_set_md_3, NULL},
140 #endif
141 #ifdef SET_MD_4_NAME
142 	{SET_MD_4_NAME,		SET_MD_4,		false, MSG_set_md_4, NULL},
143 #endif
144 
145 	{NULL,			SET_GROUP,		true, MSG_set_source, NULL},
146 	{"syssrc",		SET_SYSSRC,		true, MSG_set_syssrc, NULL},
147 	{"src",			SET_SRC,		true, MSG_set_src, NULL},
148 	{"sharesrc",		SET_SHARESRC,		true, MSG_set_sharesrc, NULL},
149 	{"gnusrc",		SET_GNUSRC,		true, MSG_set_gnusrc, NULL},
150 	{"xsrc",		SET_XSRC,		true, MSG_set_xsrc, NULL},
151 	{"debug",		SET_DEBUG,		false, MSG_set_debug, NULL},
152 	{"xdebug",		SET_X11_DEBUG,		false, MSG_set_xdebug, NULL},
153 	{NULL,			SET_GROUP_END,		false, NULL, NULL},
154 
155 	{NULL,			SET_LAST,		false, NULL, NULL},
156 };
157 
158 #define MAX_CD_INFOS	16	/* how many media can be found? */
159 struct cd_info {
160 	char device_name[16];
161 	char menu[100];
162 };
163 static struct cd_info cds[MAX_CD_INFOS];
164 
165 /* flags whether to offer the respective options (depending on helper
166    programs available on install media */
167 int have_raid, have_vnd, have_cgd, have_lvm, have_gpt, have_dk;
168 
169 /*
170  * local prototypes
171  */
172 
173 static int check_for(unsigned int mode, const char *pathname);
174 static int get_iso9660_volname(int dev, int sess, char *volname,
175 		size_t volnamelen);
176 static int get_available_cds(void);
177 static int binary_available(const char *prog);
178 
179 void
180 init_set_status(int flags)
181 {
182 	static const uint8_t sets_valid[] = {MD_SETS_VALID};
183 	static const uint8_t sets_selected_full[] = {MD_SETS_SELECTED};
184 	static const uint8_t sets_selected_minimal[] = {MD_SETS_SELECTED_MINIMAL};
185 	static const uint8_t sets_selected_nox[] = {MD_SETS_SELECTED_NOX};
186 	static const uint8_t *sets_selected;
187 	unsigned int nelem_selected;
188 	unsigned int i, len;
189 	const char *longest;
190 
191 	if (flags & SFLAG_MINIMAL) {
192 		sets_selected = sets_selected_minimal;
193 		nelem_selected = __arraycount(sets_selected_minimal);
194 	} else if (flags & SFLAG_NOX) {
195 		sets_selected = sets_selected_nox;
196 		nelem_selected = __arraycount(sets_selected_nox);
197 	} else {
198 		sets_selected = sets_selected_full;
199 		nelem_selected = __arraycount(sets_selected_full);
200 	}
201 
202 	for (i = 0; i < __arraycount(sets_valid); i++)
203 		set_status[sets_valid[i]] = SET_VALID;
204 	for (i = 0; i < nelem_selected; i++)
205 		set_status[sets_selected[i]] |= SET_SELECTED;
206 
207 	set_status[SET_GROUP] = SET_VALID;
208 
209 	/* Lookup some strings we need lots of times */
210 	msg_yes = msg_string(MSG_Yes);
211 	msg_no = msg_string(MSG_No);
212 	msg_all = msg_string(MSG_All);
213 	msg_some = msg_string(MSG_Some);
214 	msg_none = msg_string(MSG_None);
215 
216 	/* Find longest and use it to determine width of selection menu */
217 	len = strlen(msg_no); longest = msg_no;
218 	i = strlen(msg_yes); if (i > len) {len = i; longest = msg_yes; }
219 	i = strlen(msg_all); if (i > len) {len = i; longest = msg_all; }
220 	i = strlen(msg_some); if (i > len) {len = i; longest = msg_some; }
221 	i = strlen(msg_none); if (i > len) {len = i; longest = msg_none; }
222 	select_menu_width = snprintf(NULL, 0, "%-30s %s", "", longest);
223 
224 	/* Give the md code a chance to choose the right kernel, etc. */
225 	md_init_set_status(flags);
226 }
227 
228 int
229 dir_exists_p(const char *path)
230 {
231 
232 	return file_mode_match(path, S_IFDIR);
233 }
234 
235 int
236 file_exists_p(const char *path)
237 {
238 
239 	return file_mode_match(path, S_IFREG);
240 }
241 
242 int
243 file_mode_match(const char *path, unsigned int mode)
244 {
245 	struct stat st;
246 
247 	return (stat(path, &st) == 0 && (st.st_mode & S_IFMT) == mode);
248 }
249 
250 /* return ram size in MB */
251 uint64_t
252 get_ramsize(void)
253 {
254 	uint64_t ramsize;
255 	size_t len = sizeof ramsize;
256 	int mib[2] = {CTL_HW, HW_PHYSMEM64};
257 
258 	sysctl(mib, 2, &ramsize, &len, NULL, 0);
259 
260 	/* Find out how many Megs ... round up. */
261 	return (ramsize + MEG - 1) / MEG;
262 }
263 
264 void
265 run_makedev(void)
266 {
267 	char *owd;
268 
269 	msg_display_add("\n\n");
270 	msg_display_add(MSG_makedev);
271 
272 	owd = getcwd(NULL, 0);
273 
274 	/* make /dev, in case the user  didn't extract it. */
275 	make_target_dir("/dev");
276 	target_chdir_or_die("/dev");
277 	run_program(0, "/bin/sh MAKEDEV all");
278 
279 	chdir(owd);
280 	free(owd);
281 }
282 
283 /*
284  * Performs in-place replacement of a set of patterns in a file that lives
285  * inside the installed system.  The patterns must be separated by a semicolon.
286  * For example:
287  *
288  * replace("/etc/some-file.conf", "s/prop1=NO/prop1=YES/;s/foo/bar/");
289  */
290 void
291 replace(const char *path, const char *patterns, ...)
292 {
293 	char *spatterns;
294 	va_list ap;
295 
296 	va_start(ap, patterns);
297 	vasprintf(&spatterns, patterns, ap);
298 	va_end(ap);
299 	if (spatterns == NULL)
300 		err(1, "vasprintf(&spatterns, \"%s\", ...)", patterns);
301 
302 	run_program(RUN_CHROOT, "sed -an -e '%s;H;$!d;g;w %s' %s", spatterns,
303 	    path, path);
304 
305 	free(spatterns);
306 }
307 
308 static int
309 floppy_fetch(const char *set_name)
310 {
311 	char post[4];
312 	msg errmsg;
313 	int menu;
314 	int status;
315 	const char *write_mode = ">";
316 
317 	strcpy(post, "aa");
318 
319 	errmsg = "";
320 	menu = MENU_fdok;
321 	for (;;) {
322 		umount_mnt2();
323 		msg_display(errmsg);
324 		msg_fmt_display_add(MSG_fdmount, "%s%s", set_name, post);
325 		process_menu(menu, &status);
326 		if (status != SET_CONTINUE)
327 			return status;
328 		menu = MENU_fdremount;
329 		errmsg = MSG_fdremount;
330 		if (run_program(0, "/sbin/mount -r -t %s %s /mnt2",
331 							fd_type, fd_dev))
332 			continue;
333 		mnt2_mounted = 1;
334 		errmsg = MSG_fdnotfound;
335 
336 		/* Display this because it might take a while.... */
337 		if (run_program(RUN_DISPLAY,
338 			    "sh -c '/bin/cat /mnt2/%s.%s %s %s/%s/%s%s'",
339 			    set_name, post, write_mode,
340 			    target_prefix(), xfer_dir, set_name,
341 			    set_postfix(set_name)))
342 			/* XXX: a read error will give a corrupt file! */
343 			continue;
344 
345 		/* We got that file, advance to next fragment */
346 		if (post[1] < 'z')
347 			post[1]++;
348 		else
349 			post[1] = 'a', post[0]++;
350 		write_mode = ">>";
351 		errmsg = "";
352 		menu = MENU_fdok;
353 	}
354 }
355 
356 /*
357  * Load files from floppy.  Requires a /mnt2 directory for mounting them.
358  */
359 int
360 get_via_floppy(void)
361 {
362 	int rv = -1;
363 
364 	process_menu(MENU_floppysource, &rv);
365 	if (rv == SET_RETRY)
366 		return SET_RETRY;
367 
368 	fetch_fn = floppy_fetch;
369 
370 	/* Set ext_dir for absolute path. */
371 	snprintf(ext_dir_bin, sizeof ext_dir_bin, "%s/%s", target_prefix(), xfer_dir);
372 	snprintf(ext_dir_src, sizeof ext_dir_src, "%s/%s", target_prefix(), xfer_dir);
373 
374 	return SET_OK;
375 }
376 
377 /*
378  * Get the volume name of a ISO9660 file system
379  */
380 static int
381 get_iso9660_volname(int dev, int sess, char *volname, size_t volnamelen)
382 {
383 	int blkno, error, last;
384 	char buf[ISO_BLKSIZE];
385 	struct iso_volume_descriptor *vd = NULL;
386 	struct iso_primary_descriptor *pd = NULL;
387 
388 	for (blkno = sess+16; blkno < sess+16+100; blkno++) {
389 		error = pread(dev, buf, ISO_BLKSIZE, blkno*ISO_BLKSIZE);
390 		if (error == -1)
391 			return -1;
392 		vd = (struct iso_volume_descriptor *)&buf;
393 		if (memcmp(vd->id, ISO_STANDARD_ID, sizeof(vd->id)) != 0)
394 			return -1;
395 		if (isonum_711((const unsigned char *)&vd->type)
396 		     == ISO_VD_PRIMARY) {
397 			pd = (struct iso_primary_descriptor*)buf;
398 			strncpy(volname, pd->volume_id, volnamelen - 1);
399 			volname[volnamelen - 1] = '\0';
400 			last = volnamelen - 1;
401 			while (last >= 0
402 			    && (volname[last] == ' ' || volname[last] == 0))
403 				last--;
404 			volname[last+1] = 0;
405 			return 0;
406 		}
407 	}
408 	return -1;
409 }
410 
411 /*
412  * Local state while iterating CDs and collecting volumes
413  */
414 struct get_available_cds_state {
415 	struct cd_info *info;
416 	size_t count;
417 };
418 
419 /*
420  * Callback function: if this is a CD, enumerate all volumes on it
421  */
422 static bool
423 get_available_cds_helper(void *arg, const char *device)
424 {
425 	struct get_available_cds_state *state = arg;
426 	char dname[16], volname[80];
427 	struct disklabel label;
428 	int part, dev, error, sess, ready;
429 
430 	if (!is_cdrom_device(device, false))
431 		return true;
432 
433 	sprintf(dname, "/dev/r%s%c", device, 'a'+RAW_PART);
434 	dev = open(dname, O_RDONLY, 0);
435 	if (dev == -1)
436 		return true;
437 
438 	ready = 0;
439 	error = ioctl(dev, DIOCTUR, &ready);
440 	if (error != 0 || ready == 0) {
441 		close(dev);
442 		return true;
443 	}
444 	error = ioctl(dev, DIOCGDINFO, &label);
445 	close(dev);
446 	if (error != 0)
447 		return true;
448 
449 	for (part = 0; part < label.d_npartitions; part++) {
450 
451 		if (label.d_partitions[part].p_fstype == FS_UNUSED
452 		    || label.d_partitions[part].p_size == 0)
453 			continue;
454 
455 		if (label.d_partitions[part].p_fstype == FS_ISO9660) {
456 			sess = label.d_partitions[part].p_cdsession;
457 			sprintf(dname, "/dev/r%s%c", device, 'a'+part);
458 			dev = open(dname, O_RDONLY, 0);
459 			if (dev == -1)
460 				continue;
461 			error = get_iso9660_volname(dev, sess, volname,
462 			    sizeof volname);
463 			close(dev);
464 			if (error)
465 				continue;
466 			sprintf(state->info->device_name,
467 			    "%s%c", device, 'a'+part);
468 			sprintf(state->info->menu, "%s (%s)",
469 			    state->info->device_name, volname);
470 		} else {
471 			/*
472 			 * All install CDs use partition
473 			 * a for the sets.
474 			 */
475 			if (part > 0)
476 				continue;
477 			sprintf(state->info->device_name,
478 			    "%s%c", device, 'a'+part);
479 			strcpy(state->info->menu, state->info->device_name);
480 		}
481 		state->info++;
482 		if (++state->count >= MAX_CD_INFOS)
483 			return false;
484 	}
485 
486 	return true;
487 }
488 
489 /*
490  * Get a list of all available CD media (not drives!), return
491  * the number of entries collected.
492  */
493 static int
494 get_available_cds(void)
495 {
496 	struct get_available_cds_state data;
497 
498 	data.info = cds;
499 	data.count = 0;
500 
501 	enumerate_disks(&data, get_available_cds_helper);
502 
503 	return data.count;
504 }
505 
506 static int
507 cd_has_sets(void)
508 {
509 	/* Mount it */
510 	if (run_program(RUN_SILENT, "/sbin/mount -rt cd9660 /dev/%s /mnt2",
511 	    cdrom_dev) != 0)
512 		return 0;
513 
514 	mnt2_mounted = 1;
515 
516 	snprintf(ext_dir_bin, sizeof ext_dir_bin, "%s/%s", "/mnt2", set_dir_bin);
517 	snprintf(ext_dir_src, sizeof ext_dir_src, "%s/%s", "/mnt2", set_dir_src);
518 	return dir_exists_p(ext_dir_bin);
519 }
520 
521 /*
522  * Check whether we can remove the boot media.
523  * If it is not a local filesystem, return -1.
524  * If we can not decide for sure (can not tell MD content from plain ffs
525  * on hard disk, for example), return 0.
526  * If it is a CD/DVD, return 1.
527  */
528 int
529 boot_media_still_needed(void)
530 {
531 	struct statvfs sb;
532 
533 	if (statvfs("/", &sb) == 0) {
534 		if (!(sb.f_flag & ST_LOCAL))
535 			return -1;
536 		if (strcmp(sb.f_fstypename, MOUNT_CD9660) == 0
537 			   || strcmp(sb.f_fstypename, MOUNT_UDF) == 0)
538 			return 1;
539 	}
540 
541 	return 0;
542 }
543 
544 bool
545 root_is_read_only(void)
546 {
547 	struct statvfs sb;
548 
549 	if (statvfs("/", &sb) == 0)
550 		return sb.f_flag & ST_RDONLY;
551 
552 	return false;
553 }
554 
555 /*
556  * Get from a CDROM distribution.
557  * Also used on "installation using bootable install media"
558  * as the default option in the "distmedium" menu.
559  */
560 int
561 get_via_cdrom(void)
562 {
563 	menu_ent cd_menu[MAX_CD_INFOS];
564 	struct stat sb;
565 	int rv, num_cds, menu_cd, i, selected_cd = 0;
566 	bool silent = false;
567 	int mib[2];
568 	char rootdev[SSTRSIZE] = "";
569 	size_t varlen;
570 
571 	/* If root is not md(4) and we have set dir, skip this step. */
572 	mib[0] = CTL_KERN;
573 	mib[1] = KERN_ROOT_DEVICE;
574 	varlen = sizeof(rootdev);
575 	(void)sysctl(mib, 2, rootdev, &varlen, NULL, 0);
576 	if (stat(set_dir_bin, &sb) == 0 && S_ISDIR(sb.st_mode) &&
577 	    strncmp("md", rootdev, 2) != 0) {
578 	    	strlcpy(ext_dir_bin, set_dir_bin, sizeof ext_dir_bin);
579 	    	strlcpy(ext_dir_src, set_dir_src, sizeof ext_dir_src);
580 		return SET_OK;
581 	}
582 
583 	memset(cd_menu, 0, sizeof(cd_menu));
584 	num_cds = get_available_cds();
585 	if (num_cds <= 0) {
586 		silent = true;
587 	} else if (num_cds == 1) {
588 		/* single CD found, check for sets on it */
589 		strcpy(cdrom_dev, cds[0].device_name);
590 		if (cd_has_sets())
591 			return SET_OK;
592 	} else {
593 		for (i = 0; i< num_cds; i++) {
594 			cd_menu[i].opt_name = cds[i].menu;
595 			cd_menu[i].opt_flags = OPT_EXIT;
596 			cd_menu[i].opt_action = set_menu_select;
597 		}
598 		/* create a menu offering available choices */
599 		menu_cd = new_menu(MSG_Available_cds,
600 			cd_menu, num_cds, -1, 4, 0, 0,
601 			MC_SCROLL | MC_NOEXITOPT,
602 			NULL, NULL, NULL, NULL, NULL);
603 		if (menu_cd == -1)
604 			return SET_RETRY;
605 		msg_display(MSG_ask_cd);
606 		process_menu(menu_cd, &selected_cd);
607 		free_menu(menu_cd);
608 		strcpy(cdrom_dev, cds[selected_cd].device_name);
609 		if (cd_has_sets())
610 			return SET_OK;
611 	}
612 
613 	if (silent)
614 		msg_display("");
615 	else {
616 		umount_mnt2();
617 		hit_enter_to_continue(MSG_cd_path_not_found, NULL);
618 	}
619 
620 	/* ask for paths on the CD */
621 	rv = -1;
622 	process_menu(MENU_cdromsource, &rv);
623 	if (rv == SET_RETRY)
624 		return SET_RETRY;
625 
626 	if (cd_has_sets())
627 		return SET_OK;
628 
629 	return SET_RETRY;
630 }
631 
632 
633 /*
634  * Get from a pathname inside an unmounted local filesystem
635  * (e.g., where sets were preloaded onto a local DOS partition)
636  */
637 int
638 get_via_localfs(void)
639 {
640 	int rv = -1;
641 
642 	/* Get device, filesystem, and filepath */
643 	process_menu (MENU_localfssource, &rv);
644 	if (rv == SET_RETRY)
645 		return SET_RETRY;
646 
647 	/* Mount it */
648 	if (run_program(0, "/sbin/mount -rt %s /dev/%s /mnt2",
649 	    localfs_fs, localfs_dev))
650 		return SET_RETRY;
651 
652 	mnt2_mounted = 1;
653 
654 	snprintf(ext_dir_bin, sizeof ext_dir_bin, "%s/%s/%s",
655 		"/mnt2", localfs_dir, set_dir_bin);
656 	snprintf(ext_dir_src, sizeof ext_dir_src, "%s/%s/%s",
657 		"/mnt2", localfs_dir, set_dir_src);
658 
659 	return SET_OK;
660 }
661 
662 /*
663  * Get from an already-mounted pathname.
664  */
665 
666 int
667 get_via_localdir(void)
668 {
669 	int rv = -1;
670 
671 	/* Get filepath */
672 	process_menu(MENU_localdirsource, &rv);
673 	if (rv == SET_RETRY)
674 		return SET_RETRY;
675 
676 	/*
677 	 * We have to have an absolute path ('cos pax runs in a
678 	 * different directory), make it so.
679 	 */
680 	snprintf(ext_dir_bin, sizeof ext_dir_bin, "/%s/%s", localfs_dir, set_dir_bin);
681 	snprintf(ext_dir_src, sizeof ext_dir_src, "/%s/%s", localfs_dir, set_dir_src);
682 
683 	return SET_OK;
684 }
685 
686 
687 /*
688  * Support for custom distribution fetches / unpacks.
689  */
690 
691 unsigned int
692 set_X11_selected(void)
693 {
694 	int i;
695 
696 	for (i = SET_X11_FIRST; ++i < SET_X11_LAST;)
697 		if (set_status[i] & SET_SELECTED)
698 			return 1;
699 	return 0;
700 }
701 
702 unsigned int
703 get_kernel_set(void)
704 {
705 	int i;
706 
707 	for (i = SET_KERNEL_FIRST; ++i < SET_KERNEL_LAST;)
708 		if (set_status[i] & SET_SELECTED)
709 			return i;
710 	return SET_NONE;
711 }
712 
713 void
714 set_kernel_set(unsigned int kernel_set)
715 {
716 	int i;
717 
718 	/* only one kernel set is allowed */
719 	for (i = SET_KERNEL_FIRST; ++i < SET_KERNEL_LAST;)
720 		set_status[i] &= ~SET_SELECTED;
721 	set_status[kernel_set] |= SET_SELECTED;
722 }
723 
724 static int
725 set_toggle(menudesc *menu, void *arg)
726 {
727 	distinfo **distp = arg;
728 	int set = distp[menu->cursel]->set;
729 
730 	if (set > SET_KERNEL_FIRST && set < SET_KERNEL_LAST &&
731 	    !(set_status[set] & SET_SELECTED))
732 		set_kernel_set(set);
733 	else
734 		set_status[set] ^= SET_SELECTED;
735 	return 0;
736 }
737 
738 static int
739 set_all_none(menudesc *menu, void *arg, int set, int clr)
740 {
741 	distinfo **distp = arg;
742 	distinfo *dist = *distp;
743 	int nested;
744 
745 	for (nested = 0; dist->set != SET_GROUP_END || nested--; dist++) {
746 		if (dist->set == SET_GROUP) {
747 			nested++;
748 			continue;
749 		}
750 		set_status[dist->set] = (set_status[dist->set] & ~clr) | set;
751 	}
752 	return 0;
753 }
754 
755 static int
756 set_all(menudesc *menu, void *arg)
757 {
758 	return set_all_none(menu, arg, SET_SELECTED, 0);
759 }
760 
761 static int
762 set_none(menudesc *menu, void *arg)
763 {
764 	return set_all_none(menu, arg, 0, SET_SELECTED);
765 }
766 
767 static void
768 set_label(menudesc *menu, int opt, void *arg)
769 {
770 	distinfo **distp = arg;
771 	distinfo *dist = distp[opt];
772 	const char *selected;
773 	const char *desc;
774 	int nested;
775 
776 	desc = dist->desc;
777 
778 	if (dist->set != SET_GROUP)
779 		selected = set_status[dist->set] & SET_SELECTED ? msg_yes : msg_no;
780 	else {
781 		/* sub menu - display None/Some/All */
782 		nested = 0;
783 		selected = "unknown";
784 		while ((++dist)->set != SET_GROUP_END || nested--) {
785 			if (dist->set == SET_GROUP) {
786 				nested++;
787 				continue;
788 			}
789 			if (!(set_status[dist->set] & SET_VALID))
790 				continue;
791 			if (set_status[dist->set] & SET_SELECTED) {
792 				if (selected == msg_none) {
793 					selected = msg_some;
794 					break;
795 				}
796 				selected = msg_all;
797 			} else {
798 				if (selected == msg_all) {
799 					selected = msg_some;
800 					break;
801 				}
802 				selected = msg_none;
803 			}
804 		}
805 	}
806 
807 	wprintw(menu->mw, "%-30s %s", msg_string(desc), selected);
808 }
809 
810 static int set_sublist(menudesc *menu, void *arg);
811 
812 static int
813 initialise_set_menu(distinfo *dist, menu_ent *me, distinfo **de, int all_none)
814 {
815 	int set;
816 	int sets;
817 	int nested;
818 
819 	for (sets = 0; ; dist++) {
820 		set = dist->set;
821 		if (set == SET_LAST || set == SET_GROUP_END)
822 			break;
823 		if (!(set_status[set] & SET_VALID))
824 			continue;
825 		*de = dist;
826 		memset(me, 0, sizeof(*me));
827 		if (set != SET_GROUP)
828 			me->opt_action = set_toggle;
829 		else {
830 			/* Collapse sublist */
831 			nested = 0;
832 			while ((++dist)->set != SET_GROUP_END || nested--) {
833 				if (dist->set == SET_GROUP)
834 					nested++;
835 			}
836 			me->opt_action = set_sublist;
837 		}
838 		sets++;
839 		de++;
840 		me++;
841 	}
842 
843 	if (all_none) {
844 		me->opt_name = MSG_select_all;
845 		me->opt_action = set_all;
846 		me++;
847 		me->opt_name = MSG_select_none;
848 		me->opt_action = set_none;
849 		sets += 2;
850 	}
851 
852 	return sets;
853 }
854 
855 static int
856 set_sublist(menudesc *menu, void *arg)
857 {
858 	distinfo *de[SET_LAST];
859 	menu_ent me[SET_LAST];
860 	distinfo **dist = arg;
861 	int menu_no;
862 	int sets;
863 
864 	memset(me, 0, sizeof(me));
865 	sets = initialise_set_menu(dist[menu->cursel] + 1, me, de, 1);
866 
867 	menu_no = new_menu(NULL, me, sets, 20, 10, 0, select_menu_width,
868 		MC_SUBMENU | MC_SCROLL | MC_DFLTEXIT,
869 		NULL, set_label, NULL, NULL,
870 		MSG_install_selected_sets);
871 
872 	process_menu(menu_no, de);
873 	free_menu(menu_no);
874 
875 	return 0;
876 }
877 
878 void
879 customise_sets(void)
880 {
881 	distinfo *de[SET_LAST];
882 	menu_ent me[SET_LAST];
883 	int sets;
884 	int menu_no;
885 
886 	msg_display(MSG_cur_distsets);
887 	msg_table_add(MSG_cur_distsets_header);
888 
889 	memset(me, 0, sizeof(me));
890 	sets = initialise_set_menu(dist_list, me, de, 0);
891 
892 	menu_no = new_menu(NULL, me, sets, 0, 5, 0, select_menu_width,
893 		MC_SCROLL | MC_NOBOX | MC_DFLTEXIT | MC_NOCLEAR,
894 		NULL, set_label, NULL, NULL,
895 		MSG_install_selected_sets);
896 
897 	process_menu(menu_no, de);
898 	free_menu(menu_no);
899 }
900 
901 /*
902  * Extract_file **REQUIRES** an absolute path in ext_dir.  Any code
903  * that sets up xfer_dir for use by extract_file needs to put in the
904  * full path name to the directory.
905  */
906 
907 int
908 extract_file(distinfo *dist, int update)
909 {
910 	char path[STRSIZE];
911 	char *owd;
912 	int   rval;
913 
914 	/* If we might need to tidy up, ensure directory exists */
915 	if (fetch_fn != NULL)
916 		make_target_dir(xfer_dir);
917 
918 	(void)snprintf(path, sizeof path, "%s/%s%s",
919 	    ext_dir_for_set(dist->name), dist->name, set_postfix(dist->name));
920 
921 	owd = getcwd(NULL, 0);
922 
923 	/* Do we need to fetch the file now? */
924 	if (fetch_fn != NULL) {
925 		rval = fetch_fn(dist->name);
926 		if (rval != SET_OK)
927 			return rval;
928 	}
929 
930 	/* check tarfile exists */
931 	if (!file_exists_p(path)) {
932 
933 #ifdef SUPPORT_8_3_SOURCE_FILESYSTEM
934 		/*
935 		 * Update path to use dist->name truncated to the first eight
936 		 * characters and check again
937 		 */
938 		(void)snprintf(path, sizeof path,
939 		    "%s/%.8s%.4s", /* 4 as includes '.' */
940 		    ext_dir_for_set(dist->name), dist->name,
941 		    set_postfix(dist->name));
942 
943 		if (!file_exists_p(path)) {
944 #endif /* SUPPORT_8_3_SOURCE_FILESYSTEM */
945 			tarstats.nnotfound++;
946 
947 			char *err = str_arg_subst(msg_string(MSG_notarfile),
948 			    1, &dist->name);
949 			hit_enter_to_continue(err, NULL);
950 			free(err);
951 			free(owd);
952 			return SET_RETRY;
953 		}
954 #ifdef SUPPORT_8_3_SOURCE_FILESYSTEM
955 	}
956 #endif /* SUPPORT_8_3_SOURCE_FILESYSTEM */
957 
958 	tarstats.nfound++;
959 	/* cd to the target root. */
960 	if (update && (dist->set == SET_ETC || dist->set == SET_X11_ETC)) {
961 		make_target_dir("/.sysinst");
962 		target_chdir_or_die("/.sysinst");
963 	} else if (dist->set == SET_PKGSRC)
964 		target_chdir_or_die("/usr");
965 	else
966 		target_chdir_or_die("/");
967 
968 	/*
969 	 * /usr/X11R7/lib/X11/xkb/symbols/pc was a directory in 5.0
970 	 * but is a file in 5.1 and beyond, so on upgrades we need to
971 	 * delete it before extracting the xbase set.
972 	 */
973 	if (update && dist->set == SET_X11_BASE)
974 		run_program(0, "rm -rf usr/X11R7/lib/X11/xkb/symbols/pc");
975 
976 	/* now extract set files into "./". */
977 	rval = run_program(RUN_DISPLAY | RUN_PROGRESS,
978 			"progress -zf %s tar --chroot -xpf -", path);
979 
980 	chdir(owd);
981 	free(owd);
982 
983 	/* Check rval for errors and give warning. */
984 	if (rval != 0) {
985 		tarstats.nerror++;
986 		msg_fmt_display(MSG_tarerror, "%s", path);
987 		hit_enter_to_continue(NULL, NULL);
988 		return SET_RETRY;
989 	}
990 
991 	if (fetch_fn != NULL && clean_xfer_dir) {
992 		run_program(0, "rm %s", path);
993 		/* Plausibly we should unlink an empty xfer_dir as well */
994 	}
995 
996 	set_status[dist->set] |= SET_INSTALLED;
997 	tarstats.nsuccess++;
998 	return SET_OK;
999 }
1000 
1001 static void
1002 skip_set(distinfo *dist, int skip_type)
1003 {
1004 	int nested;
1005 	int set;
1006 
1007 	nested = 0;
1008 	while ((++dist)->set != SET_GROUP_END || nested--) {
1009 		set = dist->set;
1010 		if (set == SET_GROUP) {
1011 			nested++;
1012 			continue;
1013 		}
1014 		if (set == SET_LAST)
1015 			break;
1016 		if (set_status[set] == (SET_SELECTED | SET_VALID))
1017 			set_status[set] |= SET_SKIPPED;
1018 		tarstats.nskipped++;
1019 	}
1020 }
1021 
1022 /*
1023  * Get and unpack the distribution.
1024  * Show success_msg if installation completes.
1025  * Otherwise show failure_msg and wait for the user to ack it before continuing.
1026  * success_msg and failure_msg must both be 0-adic messages.
1027  */
1028 int
1029 get_and_unpack_sets(int update, msg setupdone_msg, msg success_msg, msg failure_msg)
1030 {
1031 	distinfo *dist;
1032 	int status;
1033 	int set;
1034 
1035 	/* Ensure mountpoint for distribution files exists in current root. */
1036 	(void)mkdir("/mnt2", S_IRWXU| S_IRGRP|S_IXGRP | S_IROTH|S_IXOTH);
1037 	if (script)
1038 		(void)fprintf(script, "mkdir -m 755 /mnt2\n");
1039 
1040 	/* reset failure/success counters */
1041 	memset(&tarstats, 0, sizeof(tarstats));
1042 
1043 	/* Find out which files to "get" if we get files. */
1044 
1045 	/* Accurately count selected sets */
1046 	for (dist = dist_list; (set = dist->set) != SET_LAST; dist++) {
1047 		if (dist->name == NULL)
1048 			continue;
1049 		if ((set_status[set] & (SET_VALID | SET_SELECTED))
1050 		    == (SET_VALID | SET_SELECTED))
1051 			tarstats.nselected++;
1052 	}
1053 
1054 	status = SET_RETRY;
1055 	for (dist = dist_list; (set = dist->set) != SET_LAST; dist++) {
1056 		if (dist->name == NULL)
1057 			continue;
1058 		if (set_status[set] != (SET_VALID | SET_SELECTED))
1059 			continue;
1060 
1061 		if (status != SET_OK) {
1062 			/* This might force a redraw.... */
1063 			clearok(curscr, 1);
1064 			touchwin(stdscr);
1065 			wrefresh(stdscr);
1066 			/* Sort out the location of the set files */
1067 			do {
1068 				umount_mnt2();
1069 				msg_fmt_display(MSG_distmedium, "%d%d%s",
1070 				    tarstats.nselected,
1071 				    tarstats.nsuccess + tarstats.nskipped,
1072 				    dist->name);
1073 				fetch_fn = NULL;
1074 				process_menu(MENU_distmedium, &status);
1075 			} while (status == SET_RETRY);
1076 
1077 			if (status == SET_SKIP) {
1078 				set_status[set] |= SET_SKIPPED;
1079 				tarstats.nskipped++;
1080 				continue;
1081 			}
1082 			if (status == SET_SKIP_GROUP) {
1083 				skip_set(dist, status);
1084 				continue;
1085 			}
1086 			if (status != SET_OK) {
1087 				hit_enter_to_continue(failure_msg, NULL);
1088 				return 1;
1089 			}
1090 		}
1091 
1092 		/* Try to extract this set */
1093 		status = extract_file(dist, update);
1094 		if (status == SET_RETRY)
1095 			dist--;
1096 	}
1097 
1098 	if (tarstats.nerror == 0 && tarstats.nsuccess == tarstats.nselected) {
1099 		msg_display(MSG_endtarok);
1100 		/* Give user a chance to see the success message */
1101 		sleep(1);
1102 	} else {
1103 		/* We encountered errors. Let the user know. */
1104 		msg_fmt_display(MSG_endtar, "%d%d%d%d%d%d",
1105 		    tarstats.nselected, tarstats.nnotfound, tarstats.nskipped,
1106 		    tarstats.nfound, tarstats.nsuccess, tarstats.nerror);
1107 		hit_enter_to_continue(NULL, NULL);
1108 	}
1109 
1110 	/*
1111 	 * postinstall needs to be run after extracting all sets, because
1112 	 * otherwise /var/db/obsolete will only have current information
1113 	 * from the base, comp, and etc sets.
1114 	 */
1115 	if (update && (set_status[SET_ETC] & SET_INSTALLED)) {
1116 		int oldsendmail;
1117 		oldsendmail = run_program(RUN_DISPLAY | RUN_CHROOT |
1118 					  RUN_ERROR_OK | RUN_PROGRESS,
1119 					  "/usr/sbin/postinstall -s /.sysinst -d / check mailerconf");
1120 		if (oldsendmail == 1) {
1121 			msg_display(MSG_oldsendmail);
1122 			if (ask_yesno(NULL)) {
1123 				run_program(RUN_DISPLAY | RUN_CHROOT,
1124 					    "/usr/sbin/postinstall -s /.sysinst -d / fix mailerconf");
1125 			}
1126 		}
1127 		run_program(RUN_DISPLAY | RUN_CHROOT,
1128 			"/usr/sbin/postinstall -s /.sysinst -d / fix");
1129 
1130 		/* Don't discard the system's old entropy if any */
1131 		run_program(RUN_CHROOT | RUN_SILENT,
1132 			    "/etc/rc.d/random_seed start");
1133 	}
1134 
1135 	/* Configure the system */
1136 	if (set_status[SET_BASE] & SET_INSTALLED)
1137 		run_makedev();
1138 
1139 	if (!update) {
1140 		struct stat sb1, sb2;
1141 
1142 		if (stat(target_expand("/"), &sb1) == 0
1143 		    && stat(target_expand("/var"), &sb2) == 0
1144 		    && sb1.st_dev != sb2.st_dev) {
1145 			add_rc_conf("random_file=/etc/entropy-file\n");
1146 			if (target_file_exists_p("/boot.cfg")) {
1147 				run_program(RUN_CHROOT|RUN_FATAL,
1148 					    "sh -c 'sed -e s./var/db/./etc/. "
1149 					    "< /boot.cfg "
1150 					    "> /tmp/boot.cfg.tmp'");
1151 				mv_within_target_or_die("/tmp/boot.cfg.tmp",
1152 							"/boot.cfg");
1153 			}
1154 		}
1155 
1156 		/* Save keyboard type */
1157 		save_kb_encoding();
1158 
1159 		/* Other configuration. */
1160 		mnt_net_config();
1161 	}
1162 
1163 	/* Mounted dist dir? */
1164 	umount_mnt2();
1165 
1166 	/* Save entropy -- on some systems it's ~all we'll ever get */
1167 	run_program(RUN_DISPLAY | RUN_CHROOT | RUN_FATAL | RUN_PROGRESS,
1168 		    "/etc/rc.d/random_seed stop");
1169 	/* Install/Upgrade complete ... reboot or exit to script */
1170 	hit_enter_to_continue(success_msg, NULL);
1171 	return 0;
1172 }
1173 
1174 void
1175 umount_mnt2(void)
1176 {
1177 	if (!mnt2_mounted)
1178 		return;
1179 	run_program(RUN_SILENT, "/sbin/umount /mnt2");
1180 	mnt2_mounted = 0;
1181 }
1182 
1183 
1184 /*
1185  * Do a quick sanity check that  the target can reboot.
1186  * return 1 if everything OK, 0 if there is a problem.
1187  * Uses a table of files we expect to find after a base install/upgrade.
1188  */
1189 
1190 /* test flag and pathname to check for after unpacking. */
1191 struct check_table { unsigned int mode; const char *path;} checks[] = {
1192   { S_IFREG, "/netbsd" },
1193   { S_IFDIR, "/etc" },
1194   { S_IFREG, "/etc/fstab" },
1195   { S_IFREG, "/sbin/init" },
1196   { S_IFREG, "/bin/sh" },
1197   { S_IFREG, "/etc/rc" },
1198   { S_IFREG, "/etc/rc.subr" },
1199   { S_IFREG, "/etc/rc.conf" },
1200   { S_IFDIR, "/dev" },
1201   { S_IFCHR, "/dev/console" },
1202 /* XXX check for rootdev in target /dev? */
1203   { S_IFREG, "/sbin/fsck" },
1204   { S_IFREG, "/sbin/fsck_ffs" },
1205   { S_IFREG, "/sbin/mount" },
1206   { S_IFREG, "/sbin/mount_ffs" },
1207   { S_IFREG, "/sbin/mount_nfs" },
1208 #if defined(DEBUG) || defined(DEBUG_CHECK)
1209   { S_IFREG, "/foo/bar" },		/* bad entry to exercise warning */
1210 #endif
1211   { 0, 0 }
1212 
1213 };
1214 
1215 /*
1216  * Check target for a single file.
1217  */
1218 static int
1219 check_for(unsigned int mode, const char *pathname)
1220 {
1221 	int found;
1222 
1223 	found = (target_test(mode, pathname) == 0);
1224 	if (found == 0)
1225 		msg_fmt_display(MSG_rootmissing, "%s", pathname);
1226 	return found;
1227 }
1228 
1229 /*
1230  * Check that all the files in check_table are present in the
1231  * target root. Warn if not found.
1232  */
1233 int
1234 sanity_check(void)
1235 {
1236 	int target_ok = 1;
1237 	struct check_table *p;
1238 
1239 	for (p = checks; p->path; p++) {
1240 		target_ok = target_ok && check_for(p->mode, p->path);
1241 	}
1242 	if (target_ok)
1243 		return 0;
1244 
1245 	/* Uh, oh. Something's missing. */
1246 	hit_enter_to_continue(MSG_badroot, NULL);
1247 	return 1;
1248 }
1249 
1250 /*
1251  * Some globals to pass things back from callbacks
1252  */
1253 static char zoneinfo_dir[STRSIZE];
1254 static int zonerootlen;
1255 static char *tz_selected;	/* timezonename (relative to share/zoneinfo */
1256 const char *tz_default;		/* UTC, or whatever /etc/localtime points to */
1257 static char tz_env[STRSIZE];
1258 static int save_cursel, save_topline;
1259 
1260 /*
1261  * Callback from timezone menu
1262  */
1263 static int
1264 set_tz_select(menudesc *m, void *arg)
1265 {
1266 	time_t t;
1267 	char *new;
1268 	struct tm *tm;
1269 
1270 	if (m && strcmp(tz_selected, m->opts[m->cursel].opt_name) != 0) {
1271 		/* Change the displayed timezone */
1272 		new = strdup(m->opts[m->cursel].opt_name);
1273 		if (new == NULL)
1274 			return 0;
1275 		free(tz_selected);
1276 		tz_selected = new;
1277 		snprintf(tz_env, sizeof tz_env, "%.*s%s",
1278 			 zonerootlen, zoneinfo_dir, tz_selected);
1279 		setenv("TZ", tz_env, 1);
1280 	}
1281 	if (m)
1282 		/* Warp curser to 'Exit' line on menu */
1283 		m->cursel = -1;
1284 
1285 	/* Update displayed time */
1286 	t = time(NULL);
1287 	tm = localtime(&t);
1288 	msg_fmt_display(MSG_choose_timezone, "%s%s%s%s",
1289 		    tz_default, tz_selected, safectime(&t), tm ? tm->tm_zone :
1290 		    "?");
1291 	return 0;
1292 }
1293 
1294 static int
1295 set_tz_back(menudesc *m, void *arg)
1296 {
1297 
1298 	zoneinfo_dir[zonerootlen] = 0;
1299 	m->cursel = save_cursel;
1300 	m->topline = save_topline;
1301 	return 0;
1302 }
1303 
1304 static int
1305 set_tz_dir(menudesc *m, void *arg)
1306 {
1307 
1308 	strlcpy(zoneinfo_dir + zonerootlen, m->opts[m->cursel].opt_name,
1309 		sizeof zoneinfo_dir - zonerootlen);
1310 	save_cursel = m->cursel;
1311 	save_topline = m->topline;
1312 	m->cursel = 0;
1313 	m->topline = 0;
1314 	return 0;
1315 }
1316 
1317 /*
1318  * Alarm-handler to update example-display
1319  */
1320 static void
1321 /*ARGSUSED*/
1322 timezone_sig(int sig)
1323 {
1324 
1325 	set_tz_select(NULL, NULL);
1326 	alarm(60);
1327 }
1328 
1329 static int
1330 tz_sort(const void *a, const void *b)
1331 {
1332 	return strcmp(((const menu_ent *)a)->opt_name, ((const menu_ent *)b)->opt_name);
1333 }
1334 
1335 static void
1336 tzm_set_names(menudesc *m, void *arg)
1337 {
1338 	DIR *dir;
1339 	struct dirent *dp;
1340 	static int nfiles;
1341 	static int maxfiles = 32;
1342 	static menu_ent *tz_menu;
1343 	static char **tz_names;
1344 	void *p;
1345 	int maxfname;
1346 	char *fp;
1347 	struct stat sb;
1348 
1349 	if (tz_menu == NULL)
1350 		tz_menu = calloc(maxfiles, sizeof *tz_menu);
1351 	if (tz_names == NULL)
1352 		tz_names = malloc(maxfiles * sizeof *tz_names);
1353 	if (tz_menu == NULL || tz_names == NULL)
1354 		return;	/* error - skip timezone setting */
1355 	while (nfiles > 0)
1356 		free(tz_names[--nfiles]);
1357 
1358 	dir = opendir(zoneinfo_dir);
1359 	fp = strchr(zoneinfo_dir, 0);
1360 	if (fp != zoneinfo_dir + zonerootlen) {
1361 		tz_names[0] = 0;
1362 		tz_menu[0].opt_name = msg_string(MSG_tz_back);
1363 		tz_menu[0].opt_action = set_tz_back;
1364 		nfiles = 1;
1365 	}
1366 	maxfname = zoneinfo_dir + sizeof zoneinfo_dir - fp - 1;
1367 	if (dir != NULL) {
1368 		while ((dp = readdir(dir)) != NULL) {
1369 			if (dp->d_namlen > maxfname || dp->d_name[0] == '.')
1370 				continue;
1371 			strlcpy(fp, dp->d_name, maxfname);
1372 			if (stat(zoneinfo_dir, &sb) == -1)
1373 				continue;
1374 			if (nfiles >= maxfiles) {
1375 				p = realloc(tz_menu,
1376 				    2 * maxfiles * sizeof *tz_menu);
1377 				if (p == NULL)
1378 					break;
1379 				tz_menu = p;
1380 				memset(tz_menu + maxfiles, 0,
1381 				    maxfiles * sizeof *tz_menu);
1382 				p = realloc(tz_names,
1383 				    2 * maxfiles * sizeof *tz_names);
1384 				if (p == NULL)
1385 					break;
1386 				tz_names = p;
1387 				memset(tz_names + maxfiles, 0,
1388 				    maxfiles * sizeof *tz_names);
1389 				maxfiles *= 2;
1390 			}
1391 			if (S_ISREG(sb.st_mode))
1392 				tz_menu[nfiles].opt_action = set_tz_select;
1393 			else if (S_ISDIR(sb.st_mode)) {
1394 				tz_menu[nfiles].opt_action = set_tz_dir;
1395 				strlcat(fp, "/",
1396 				    sizeof(zoneinfo_dir) - (fp - zoneinfo_dir));
1397 			} else
1398 				continue;
1399 			tz_names[nfiles] = strdup(zoneinfo_dir + zonerootlen);
1400 			tz_menu[nfiles].opt_name = tz_names[nfiles];
1401 			nfiles++;
1402 		}
1403 		closedir(dir);
1404 	}
1405 	*fp = 0;
1406 
1407 	m->opts = tz_menu;
1408 	m->numopts = nfiles;
1409 	qsort(tz_menu, nfiles, sizeof *tz_menu, tz_sort);
1410 }
1411 
1412 void
1413 get_tz_default(void)
1414 {
1415 	char localtime_link[STRSIZE];
1416 	static char localtime_target[STRSIZE];
1417 	int rc;
1418 
1419 	strlcpy(localtime_link, target_expand("/etc/localtime"),
1420 	    sizeof localtime_link);
1421 
1422 	/* Add sanity check that /mnt/usr/share/zoneinfo contains
1423 	 * something useful
1424 	 */
1425 
1426 	rc = readlink(localtime_link, localtime_target,
1427 		      sizeof(localtime_target) - 1);
1428 	if (rc < 0) {
1429 		/* error, default to UTC */
1430 		tz_default = "UTC";
1431 	} else {
1432 		localtime_target[rc] = '\0';
1433 		tz_default = strchr(strstr(localtime_target, "zoneinfo"), '/') + 1;
1434 	}
1435 }
1436 
1437 /*
1438  * Choose from the files in usr/share/zoneinfo and set etc/localtime
1439  */
1440 int
1441 set_timezone(void)
1442 {
1443 	char localtime_link[STRSIZE];
1444 	char localtime_target[STRSIZE];
1445 	time_t t;
1446 	struct tm *tm;
1447 	int menu_no;
1448 
1449 	strlcpy(zoneinfo_dir, target_expand("/usr/share/zoneinfo/"),
1450 	    sizeof zoneinfo_dir - 1);
1451 	zonerootlen = strlen(zoneinfo_dir);
1452 
1453 	get_tz_default();
1454 
1455 	tz_selected = strdup(tz_default);
1456 	snprintf(tz_env, sizeof(tz_env), "%s%s", zoneinfo_dir, tz_selected);
1457 	setenv("TZ", tz_env, 1);
1458 	t = time(NULL);
1459 	tm = localtime(&t);
1460 	msg_fmt_display(MSG_choose_timezone, "%s%s%s%s",
1461 	    tz_default, tz_selected, safectime(&t), tm ? tm->tm_zone : "?");
1462 
1463 	signal(SIGALRM, timezone_sig);
1464 	alarm(60);
1465 
1466 	menu_no = new_menu(NULL, NULL, 14, 23, 9,
1467 			   12, 32, MC_ALWAYS_SCROLL | MC_NOSHORTCUT,
1468 			   tzm_set_names, NULL, NULL,
1469 			   "\nPlease consult the install documents.", NULL);
1470 	if (menu_no < 0)
1471 		goto done;	/* error - skip timezone setting */
1472 
1473 	process_menu(menu_no, NULL);
1474 
1475 	free_menu(menu_no);
1476 
1477 	signal(SIGALRM, SIG_IGN);
1478 
1479 	snprintf(localtime_target, sizeof(localtime_target),
1480 		 "/usr/share/zoneinfo/%s", tz_selected);
1481 	strlcpy(localtime_link, target_expand("/etc/localtime"),
1482 	    sizeof localtime_link);
1483 	unlink(localtime_link);
1484 	symlink(localtime_target, localtime_link);
1485 
1486 done:
1487 	return 1;
1488 }
1489 
1490 void
1491 scripting_vfprintf(FILE *f, const char *fmt, va_list ap)
1492 {
1493 	va_list ap2;
1494 
1495 	va_copy(ap2, ap);
1496 	if (f)
1497 		(void)vfprintf(f, fmt, ap);
1498 	if (script)
1499 		(void)vfprintf(script, fmt, ap2);
1500 }
1501 
1502 void
1503 scripting_fprintf(FILE *f, const char *fmt, ...)
1504 {
1505 	va_list ap;
1506 
1507 	va_start(ap, fmt);
1508 	scripting_vfprintf(f, fmt, ap);
1509 	va_end(ap);
1510 }
1511 
1512 void
1513 add_rc_conf(const char *fmt, ...)
1514 {
1515 	FILE *f;
1516 	va_list ap;
1517 
1518 	va_start(ap, fmt);
1519 	f = target_fopen("/etc/rc.conf", "a");
1520 	if (f != 0) {
1521 		scripting_fprintf(NULL, "cat <<EOF >>%s/etc/rc.conf\n",
1522 		    target_prefix());
1523 		scripting_vfprintf(f, fmt, ap);
1524 		fclose(f);
1525 		scripting_fprintf(NULL, "EOF\n");
1526 	}
1527 	va_end(ap);
1528 }
1529 
1530 int
1531 del_rc_conf(const char *value)
1532 {
1533 	FILE *fp, *nfp;
1534 	char buf[4096]; /* Ridiculously high, but should be enough in any way */
1535 	char *rcconf, *tempname = NULL, *bakname = NULL;
1536 	char *cp;
1537 	int done = 0;
1538 	int fd;
1539 	int retval = 0;
1540 
1541 	/* The paths might seem strange, but using /tmp would require copy instead
1542 	 * of rename operations. */
1543 	if (asprintf(&rcconf, "%s", target_expand("/etc/rc.conf")) < 0
1544 			|| asprintf(&tempname, "%s", target_expand("/etc/rc.conf.tmp.XXXXXX")) < 0
1545 			|| asprintf(&bakname, "%s", target_expand("/etc/rc.conf.bak.XXXXXX")) < 0) {
1546 		if (rcconf)
1547 			free(rcconf);
1548 		if (tempname)
1549 			free(tempname);
1550 		msg_fmt_display(MSG_rcconf_delete_failed, "%s", value);
1551 		hit_enter_to_continue(NULL, NULL);
1552 		return -1;
1553 	}
1554 
1555 	if ((fd = mkstemp(bakname)) < 0) {
1556 		msg_fmt_display(MSG_rcconf_delete_failed, "%s", value);
1557 		hit_enter_to_continue(NULL, NULL);
1558 		return -1;
1559 	}
1560 	close(fd);
1561 
1562 	if (!(fp = fopen(rcconf, "r+")) || (fd = mkstemp(tempname)) < 0) {
1563 		if (fp)
1564 			fclose(fp);
1565 		msg_fmt_display(MSG_rcconf_delete_failed, "%s", value);
1566 		hit_enter_to_continue(NULL, NULL);
1567 		return -1;
1568 	}
1569 
1570 	nfp = fdopen(fd, "w");
1571 	if (!nfp) {
1572 		fclose(fp);
1573 		close(fd);
1574 		msg_fmt_display(MSG_rcconf_delete_failed, "%s", value);
1575 		hit_enter_to_continue(NULL, NULL);
1576 		return -1;
1577 	}
1578 
1579 	while (fgets(buf, sizeof buf, fp) != NULL) {
1580 
1581 		cp = buf + strspn(buf, " \t"); /* Skip initial spaces */
1582 		if (strncmp(cp, value, strlen(value)) == 0) {
1583 			cp += strlen(value);
1584 			if (*cp != '=')
1585 				scripting_fprintf(nfp, "%s", buf);
1586 			else
1587 				done = 1;
1588 		} else {
1589 			scripting_fprintf(nfp, "%s", buf);
1590 		}
1591 	}
1592 	fclose(fp);
1593 	fclose(nfp);
1594 
1595 	if (done) {
1596 		if (rename(rcconf, bakname)) {
1597 			msg_display(MSG_rcconf_backup_failed);
1598 			if (!ask_noyes(NULL)) {
1599 				retval = -1;
1600 				goto done;
1601 			}
1602 		}
1603 
1604 		if (rename(tempname, rcconf)) {
1605 			if (rename(bakname, rcconf)) {
1606 				hit_enter_to_continue(MSG_rcconf_restore_failed,
1607 				    NULL);
1608 			} else {
1609 				hit_enter_to_continue(MSG_rcconf_delete_failed,
1610 				    NULL);
1611 			}
1612 		} else {
1613 			(void)unlink(bakname);
1614 		}
1615 	}
1616 
1617 done:
1618 	(void)unlink(tempname);
1619 	free(rcconf);
1620 	free(tempname);
1621 	free(bakname);
1622 	return retval;
1623 }
1624 
1625 void
1626 add_sysctl_conf(const char *fmt, ...)
1627 {
1628 	FILE *f;
1629 	va_list ap;
1630 
1631 	va_start(ap, fmt);
1632 	f = target_fopen("/etc/sysctl.conf", "a");
1633 	if (f != 0) {
1634 		scripting_fprintf(NULL, "cat <<EOF >>%s/etc/sysctl.conf\n",
1635 		    target_prefix());
1636 		scripting_vfprintf(f, fmt, ap);
1637 		fclose(f);
1638 		scripting_fprintf(NULL, "EOF\n");
1639 	}
1640 	va_end(ap);
1641 }
1642 
1643 void
1644 enable_rc_conf(void)
1645 {
1646 
1647 	replace("/etc/rc.conf", "s/^rc_configured=NO/rc_configured=YES/");
1648 }
1649 
1650 int
1651 check_lfs_progs(void)
1652 {
1653 
1654 #ifndef NO_LFS
1655 	return binary_available("fsck_lfs") && binary_available("mount_lfs")
1656 	    && binary_available("newfs_lfs");
1657 #else
1658 	return 0;
1659 #endif
1660 }
1661 
1662 int
1663 set_is_source(const char *set_name) {
1664 	int len = strlen(set_name);
1665 	return len >= 3 && memcmp(set_name + len - 3, "src", 3) == 0;
1666 }
1667 
1668 const char *
1669 set_dir_for_set(const char *set_name) {
1670 	if (strcmp(set_name, "pkgsrc") == 0)
1671 		return pkgsrc_dir;
1672 	return set_is_source(set_name) ? set_dir_src : set_dir_bin;
1673 }
1674 
1675 const char *
1676 ext_dir_for_set(const char *set_name) {
1677 	if (strcmp(set_name, "pkgsrc") == 0)
1678 		return ext_dir_pkgsrc;
1679 	return set_is_source(set_name) ? ext_dir_src : ext_dir_bin;
1680 }
1681 
1682 void
1683 do_coloring(unsigned int fg, unsigned int bg) {
1684 	if (bg > COLOR_WHITE)
1685 		bg = COLOR_BLUE;
1686 	if (fg > COLOR_WHITE)
1687 		fg = COLOR_WHITE;
1688 	if (fg != bg && has_colors()) {
1689 		init_pair(1, fg, bg);
1690 		wbkgd(stdscr, COLOR_PAIR(1));
1691 		wbkgd(mainwin, COLOR_PAIR(1));
1692 		wattrset(stdscr, COLOR_PAIR(1));
1693 		wattrset(mainwin, COLOR_PAIR(1));
1694 	}
1695 	/* redraw screen */
1696 	touchwin(stdscr);
1697 	touchwin(mainwin);
1698 	wrefresh(stdscr);
1699 	wrefresh(mainwin);
1700 	return;
1701 }
1702 
1703 int
1704 set_menu_select(menudesc *m, void *arg)
1705 {
1706 	*(int *)arg = m->cursel;
1707 	return 1;
1708 }
1709 
1710 /*
1711  * check wether a binary is available somewhere in PATH,
1712  * return 1 if found, 0 if not.
1713  */
1714 static int
1715 binary_available(const char *prog)
1716 {
1717         char *p, tmp[MAXPATHLEN], *path = getenv("PATH"), *opath;
1718 
1719         if (path == NULL)
1720                 return access(prog, X_OK) == 0;
1721         path = strdup(path);
1722         if (path == NULL)
1723                 return 0;
1724 
1725 	opath = path;
1726 
1727         while ((p = strsep(&path, ":")) != NULL) {
1728                 if (strlcpy(tmp, p, MAXPATHLEN) >= MAXPATHLEN)
1729                         continue;
1730                 if (strlcat(tmp, "/", MAXPATHLEN) >= MAXPATHLEN)
1731                         continue;
1732                 if (strlcat(tmp, prog, MAXPATHLEN) >= MAXPATHLEN)
1733                         continue;
1734                 if (access(tmp, X_OK) == 0) {
1735                         free(opath);
1736                         return 1;
1737                 }
1738         }
1739         free(opath);
1740         return 0;
1741 }
1742 
1743 const char *
1744 safectime(time_t *t)
1745 {
1746 	const char *s = ctime(t);
1747 	if (s != NULL)
1748 		return s;
1749 
1750 	// Debugging.
1751 	fprintf(stderr, "Can't convert to localtime 0x%jx (%s)\n",
1752 	    (intmax_t)*t, strerror(errno));
1753 	      /*123456789012345678901234*/
1754 	return "preposterous clock time\n";
1755 }
1756 
1757 int
1758 ask_yesno(const char* msgtxt)
1759 {
1760 	arg_rv p;
1761 
1762 	p.arg = __UNCONST(msgtxt);
1763 	p.rv = -1;
1764 
1765 	process_menu(MENU_yesno, &p);
1766 	return p.rv;
1767 }
1768 
1769 int
1770 ask_noyes(const char *msgtxt)
1771 {
1772 	arg_rv p;
1773 
1774 	p.arg = __UNCONST(msgtxt);
1775 	p.rv = -1;
1776 
1777 	process_menu(MENU_noyes, &p);
1778 	return p.rv;
1779 }
1780 
1781 int
1782 ask_reedit(const struct disk_partitions *parts)
1783 {
1784 	const char *args[2];
1785 	arg_rep_int arg;
1786 
1787 	args[0] = msg_string(parts->pscheme->name);
1788 	args[1] = msg_string(parts->pscheme->short_name);
1789 	arg.args.argv = args;
1790 	arg.args.argc = 2;
1791 	arg.rv = 0;
1792 	process_menu(MENU_reedit, &arg);
1793 
1794 	return arg.rv;
1795 }
1796 
1797 bool
1798 use_tgz_for_set(const char *set_name)
1799 {
1800 	const struct distinfo *dist;
1801 
1802 	for (dist = dist_list; dist->set != SET_LAST; dist++) {
1803 		if (dist->name == NULL)
1804 			continue;
1805 		if (strcmp(set_name, dist->name) == 0)
1806 			return dist->force_tgz;
1807 	}
1808 
1809 	return true;
1810 }
1811 
1812 /* Return the postfix used for a given set */
1813 const char *
1814 set_postfix(const char *set_name)
1815 {
1816 	return use_tgz_for_set(set_name) ? dist_tgz_postfix : dist_postfix;
1817 }
1818 
1819 /*
1820  * Replace positional arguments (encoded as $0 .. $N) in the string
1821  * passed by the contents of the passed argument array.
1822  * Caller must free() the result string.
1823  */
1824 char*
1825 str_arg_subst(const char *src, size_t argc, const char **argv)
1826 {
1827 	const char *p, *last;
1828 	char *out, *t;
1829 	size_t len;
1830 
1831 	len = strlen(src);
1832 	for (p = strchr(src, '$'); p; p = strchr(p+1, '$')) {
1833 		char *endp = NULL;
1834 		size_t n;
1835 		int e;
1836 
1837 		/* $ followed by a correct numeric position? */
1838 		n = strtou(p+1, &endp, 10, 0, INT_MAX, &e);
1839 		if ((e == 0 || e == ENOTSUP) && n < argc) {
1840 			len += strlen(argv[n]);
1841 			len -= endp-p;
1842 			p = endp-1;
1843 		}
1844 	}
1845 
1846 	out = malloc(len+1);
1847 	if (out == NULL)
1848 		return NULL;
1849 
1850 	t = out;
1851 	for (last = src, p = strchr(src, '$'); p; p = strchr(p+1, '$')) {
1852 		char *endp = NULL;
1853 		size_t n;
1854 		int e;
1855 
1856 		/* $ followed by a correct numeric position? */
1857 		n = strtou(p+1, &endp, 10, 0, INT_MAX, &e);
1858 		if ((e == 0 || e == ENOTSUP) && n < argc) {
1859 			size_t l = p-last;
1860 			memcpy(t, last, l);
1861 			t += l;
1862 			strcpy(t, argv[n]);
1863 			t += strlen(argv[n]);
1864 			last = endp;
1865 		}
1866 	}
1867 	if (*last) {
1868 		strcpy(t, last);
1869 		t += strlen(last);
1870 	} else {
1871 		*t = 0;
1872 	}
1873 	assert((size_t)(t-out) == len);
1874 
1875 	return out;
1876 }
1877 
1878 /*
1879  * Does this string have any positional args that need expanding?
1880  */
1881 bool
1882 needs_expanding(const char *src, size_t argc)
1883 {
1884 	const char *p;
1885 
1886 	for (p = strchr(src, '$'); p; p = strchr(p+1, '$')) {
1887 		char *endp = NULL;
1888 		size_t n;
1889 		int e;
1890 
1891 		/* $ followed by a correct numeric position? */
1892 		n = strtou(p+1, &endp, 10, 0, INT_MAX, &e);
1893 		if ((e == 0 || e == ENOTSUP) && n < argc)
1894 			return true;
1895 	}
1896 	return false;
1897 }
1898 
1899 /*
1900  * Replace positional arguments (encoded as $0 .. $N) in the
1901  * message by the strings passed as ... and call outfunc
1902  * with the result.
1903  */
1904 static void
1905 msg_display_subst_internal(void (*outfunc)(msg),
1906     const char *master, size_t argc, va_list ap)
1907 {
1908 	const char **args, **arg;
1909 	char *out;
1910 
1911 	args = calloc(argc, sizeof(*args));
1912 	if (args == NULL)
1913 		return;
1914 
1915 	arg = args;
1916 	for (size_t i = 0; i < argc; i++)
1917 		*arg++ = va_arg(ap, const char*);
1918 
1919 	out = str_arg_subst(msg_string(master), argc, args);
1920 	if (out != NULL) {
1921 		outfunc(out);
1922 		free(out);
1923 	}
1924 	free(args);
1925 }
1926 
1927 /*
1928  * Replace positional arguments (encoded as $0 .. $N) in the
1929  * message by the strings passed as ...
1930  */
1931 void
1932 msg_display_subst(const char *master, size_t argc, ...)
1933 {
1934 	va_list ap;
1935 
1936 	va_start(ap, argc);
1937 	msg_display_subst_internal(msg_display, master, argc, ap);
1938 	va_end(ap);
1939 }
1940 
1941 /*
1942  * Same as above, but add to message instead of starting a new one
1943  */
1944 void
1945 msg_display_add_subst(const char *master, size_t argc, ...)
1946 {
1947 	va_list ap;
1948 
1949 	va_start(ap, argc);
1950 	msg_display_subst_internal(msg_display_add, master, argc, ap);
1951 	va_end(ap);
1952 }
1953 
1954 /* initialize have_* variables */
1955 void
1956 check_available_binaries()
1957 {
1958 	static int did_test = false;
1959 
1960 	if (did_test) return;
1961 	did_test = 1;
1962 
1963 	have_raid = binary_available("raidctl");
1964 	have_vnd = binary_available("vndconfig");
1965 	have_cgd = binary_available("cgdconfig");
1966 	have_lvm = binary_available("lvm");
1967 	have_gpt = binary_available("gpt");
1968 	have_dk = binary_available("dkctl");
1969 }
1970 
1971 /*
1972  * Wait for enter and immediately clear the screen after user response
1973  * (in case some longer action follows, so the user has instant feedback)
1974  */
1975 void
1976 hit_enter_to_continue(const char *prompt, const char *title)
1977 {
1978 	if (prompt != NULL)
1979 		msg_display(prompt);
1980         process_menu(MENU_ok, __UNCONST(title));
1981 	msg_clear();
1982 	wrefresh(mainwin);
1983 }
1984 
1985 /*
1986  * On auto pilot:
1987  * convert an existing set of partitions ot a list of part_usage_info
1988  * so that we "want" exactly what is there already.
1989  */
1990 static bool
1991 usage_info_list_from_parts(struct part_usage_info **list, size_t *count,
1992     struct disk_partitions *parts)
1993 {
1994 	struct disk_part_info info;
1995 	part_id pno;
1996 	size_t no, num;
1997 
1998 	num = 0;
1999 	for (pno = 0; pno < parts->num_part; pno++) {
2000 		if (!parts->pscheme->get_part_info(parts, pno, &info))
2001 			continue;
2002 		num++;
2003 	}
2004 
2005 	*list = calloc(num, sizeof(**list));
2006 	if (*list == NULL)
2007 		return false;
2008 
2009 	*count = num;
2010 	for (no = pno = 0; pno < parts->num_part && no < num; pno++) {
2011 		if (!parts->pscheme->get_part_info(parts, pno, &info))
2012 			continue;
2013 		(*list)[no].size = info.size;
2014 		if (info.last_mounted != NULL && *info.last_mounted != 0) {
2015 			strlcpy((*list)[no].mount, info.last_mounted,
2016 			    sizeof((*list)[no].mount));
2017 			(*list)[no].instflags |= PUIINST_MOUNT;
2018 		}
2019 		(*list)[no].parts = parts;
2020 		(*list)[no].cur_part_id = pno;
2021 		(*list)[no].cur_start = info.start;
2022 		(*list)[no].cur_flags = info.flags;
2023 		(*list)[no].type = info.nat_type->generic_ptype;
2024 		if ((*list)[no].type == PT_swap) {
2025 			(*list)[no].fs_type = FS_SWAP;
2026 			(*list)[no].fs_version = 0;
2027 		} else {
2028 			(*list)[no].fs_type = info.fs_type;
2029 			(*list)[no].fs_version = info.fs_sub_type;
2030 		}
2031 		no++;
2032 	}
2033 	return true;
2034 }
2035 
2036 bool
2037 usage_set_from_parts(struct partition_usage_set *wanted,
2038     struct disk_partitions *parts)
2039 {
2040 	memset(wanted, 0, sizeof(*wanted));
2041 	wanted->parts = parts;
2042 
2043 	return usage_info_list_from_parts(&wanted->infos, &wanted->num, parts);
2044 }
2045 
2046 bool
2047 install_desc_from_parts(struct install_partition_desc *install,
2048     struct disk_partitions *parts)
2049 {
2050 	struct disk_partitions *inner_parts;
2051 	daddr_t start, size;
2052 	part_id pno;
2053 	struct disk_part_info info;
2054 
2055 	memset(install, 0, sizeof(*install));
2056 
2057 	if (parts->pscheme->secondary_scheme != NULL) {
2058 		start = -1;
2059 		size = -1;
2060 		if (parts->pscheme->guess_install_target != NULL &&
2061 		    parts->pscheme->guess_install_target(parts,
2062 			&start, &size)) {
2063 		} else {
2064 			for (pno = 0; pno < parts->num_part; pno++) {
2065 				if (!parts->pscheme->get_part_info(parts, pno,
2066 				    &info))
2067 					continue;
2068 				if (!(info.flags & PTI_SEC_CONTAINER))
2069 					continue;
2070 				start = info.start;
2071 				size = info.size;
2072 			}
2073 		}
2074 		if (size > 0) {
2075 			inner_parts = parts->pscheme->secondary_partitions(
2076 			    parts, start, false);
2077 			if (inner_parts != NULL)
2078 				parts = inner_parts;
2079 		}
2080 	}
2081 
2082 	return usage_info_list_from_parts(&install->infos, &install->num,
2083 	    parts);
2084 }
2085 
2086 void
2087 free_usage_set(struct partition_usage_set *wanted)
2088 {
2089 	free(wanted->menu_opts);
2090 	free(wanted->infos);
2091 }
2092 
2093 void
2094 free_install_desc(struct install_partition_desc *install)
2095 {
2096 	free(install->infos);
2097 }
2098 
2099