xref: /netbsd-src/usr.sbin/sysinst/util.c (revision 53b02e147d4ed531c0d2a5ca9b3e8026ba3e99b5)
1 /*	$NetBSD: util.c,v 1.62 2021/10/08 15:59:55 martin 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 #ifdef MD_MAY_SWAP_TO
63 #include <sys/drvctlio.h>
64 #endif
65 #ifdef CHECK_ENTROPY
66 #include <sha2.h>
67 #include <paths.h>
68 #endif
69 
70 #define MAX_CD_DEVS	256	/* how many cd drives do we expect to attach */
71 #define ISO_BLKSIZE	ISO_DEFAULT_BLOCK_SIZE
72 
73 static const char *msg_yes, *msg_no, *msg_all, *msg_some, *msg_none;
74 static int select_menu_width;
75 
76 static uint8_t set_status[SET_GROUP_END];
77 #define SET_VALID	0x01
78 #define SET_SELECTED	0x02
79 #define SET_SKIPPED	0x04
80 #define SET_INSTALLED	0x08
81 #define	SET_NO_EXTRACT	0x10
82 
83 struct  tarstats {
84 	int nselected;
85 	int nfound;
86 	int nnotfound;
87 	int nerror;
88 	int nsuccess;
89 	int nskipped;
90 } tarstats;
91 
92 distinfo dist_list[] = {
93 #ifdef SET_KERNEL_1_NAME
94 	{SET_KERNEL_1_NAME,	SET_KERNEL_1,		false, MSG_set_kernel_1, NULL},
95 #endif
96 #ifdef SET_KERNEL_2_NAME
97 	{SET_KERNEL_2_NAME,	SET_KERNEL_2,		false, MSG_set_kernel_2, NULL},
98 #endif
99 #ifdef SET_KERNEL_3_NAME
100 	{SET_KERNEL_3_NAME,	SET_KERNEL_3,		false, MSG_set_kernel_3, NULL},
101 #endif
102 #ifdef SET_KERNEL_4_NAME
103 	{SET_KERNEL_4_NAME,	SET_KERNEL_4,		false, MSG_set_kernel_4, NULL},
104 #endif
105 #ifdef SET_KERNEL_5_NAME
106 	{SET_KERNEL_5_NAME,	SET_KERNEL_5,		false, MSG_set_kernel_5, NULL},
107 #endif
108 #ifdef SET_KERNEL_6_NAME
109 	{SET_KERNEL_6_NAME,	SET_KERNEL_6,		false, MSG_set_kernel_6, NULL},
110 #endif
111 #ifdef SET_KERNEL_7_NAME
112 	{SET_KERNEL_7_NAME,	SET_KERNEL_7,		false, MSG_set_kernel_7, NULL},
113 #endif
114 #ifdef SET_KERNEL_8_NAME
115 	{SET_KERNEL_8_NAME,	SET_KERNEL_8,		false, MSG_set_kernel_8, NULL},
116 #endif
117 #ifdef SET_KERNEL_9_NAME
118 	{SET_KERNEL_9_NAME,	SET_KERNEL_9,		false, MSG_set_kernel_9, NULL},
119 #endif
120 
121 #ifdef HAVE_MODULES
122 	{"modules",		SET_MODULES,		false, MSG_set_modules, NULL},
123 #endif
124 	{"base",		SET_BASE,		false, MSG_set_base, NULL},
125 #ifdef HAVE_DTB
126 	{"dtb",			SET_DTB,		false, MSG_set_dtb, NULL},
127 #endif
128 	{"etc",			SET_ETC,		false, MSG_set_system, NULL},
129 	{"comp",		SET_COMPILER,		false, MSG_set_compiler, NULL},
130 	{"games",		SET_GAMES,		false, MSG_set_games, NULL},
131 	{"gpufw",		SET_GPUFW,		false, MSG_set_gpufw, NULL},
132 	{"man",			SET_MAN_PAGES,		false, MSG_set_man_pages, NULL},
133 	{"misc",		SET_MISC,		false, MSG_set_misc, NULL},
134 	{"rescue",		SET_RESCUE,		false, MSG_set_rescue, NULL},
135 	{"tests",		SET_TESTS,		false, MSG_set_tests, NULL},
136 	{"text",		SET_TEXT_TOOLS,		false, MSG_set_text_tools, NULL},
137 
138 	{NULL,			SET_GROUP,		false, MSG_set_X11, NULL},
139 	{"xbase",		SET_X11_BASE,		false, MSG_set_X11_base, NULL},
140 	{"xcomp",		SET_X11_PROG,		false, MSG_set_X11_prog, NULL},
141 	{"xetc",		SET_X11_ETC,		false, MSG_set_X11_etc, NULL},
142 	{"xfont",		SET_X11_FONTS,		false, MSG_set_X11_fonts, NULL},
143 	{"xserver",		SET_X11_SERVERS,	false, MSG_set_X11_servers, NULL},
144 	{NULL,			SET_GROUP_END,		false, NULL, NULL},
145 
146 #ifdef SET_MD_1_NAME
147 	{SET_MD_1_NAME,		SET_MD_1,		false, MSG_set_md_1, NULL},
148 #endif
149 #ifdef SET_MD_2_NAME
150 	{SET_MD_2_NAME,		SET_MD_2,		false, MSG_set_md_2, NULL},
151 #endif
152 #ifdef SET_MD_3_NAME
153 	{SET_MD_3_NAME,		SET_MD_3,		false, MSG_set_md_3, NULL},
154 #endif
155 #ifdef SET_MD_4_NAME
156 	{SET_MD_4_NAME,		SET_MD_4,		false, MSG_set_md_4, NULL},
157 #endif
158 
159 	{NULL,			SET_GROUP,		true, MSG_set_source, NULL},
160 	{"syssrc",		SET_SYSSRC,		true, MSG_set_syssrc, NULL},
161 	{"src",			SET_SRC,		true, MSG_set_src, NULL},
162 	{"sharesrc",		SET_SHARESRC,		true, MSG_set_sharesrc, NULL},
163 	{"gnusrc",		SET_GNUSRC,		true, MSG_set_gnusrc, NULL},
164 	{"xsrc",		SET_XSRC,		true, MSG_set_xsrc, NULL},
165 	{"debug",		SET_DEBUG,		false, MSG_set_debug, NULL},
166 	{"xdebug",		SET_X11_DEBUG,		false, MSG_set_xdebug, NULL},
167 	{NULL,			SET_GROUP_END,		false, NULL, NULL},
168 
169 	{NULL,			SET_LAST,		false, NULL, NULL},
170 };
171 
172 #define MAX_CD_INFOS	16	/* how many media can be found? */
173 struct cd_info {
174 	char device_name[16];
175 	char menu[100];
176 };
177 static struct cd_info cds[MAX_CD_INFOS];
178 
179 /* flags whether to offer the respective options (depending on helper
180    programs available on install media */
181 int have_raid, have_vnd, have_cgd, have_lvm, have_gpt, have_dk;
182 
183 /*
184  * local prototypes
185  */
186 
187 static int check_for(unsigned int mode, const char *pathname);
188 static int get_iso9660_volname(int dev, int sess, char *volname,
189 		size_t volnamelen);
190 static int get_available_cds(void);
191 static int binary_available(const char *prog);
192 
193 void
194 init_set_status(int flags)
195 {
196 	static const uint8_t sets_valid[] = {MD_SETS_VALID};
197 	static const uint8_t sets_selected_full[] = {MD_SETS_SELECTED};
198 	static const uint8_t sets_selected_minimal[] = {MD_SETS_SELECTED_MINIMAL};
199 	static const uint8_t sets_selected_nox[] = {MD_SETS_SELECTED_NOX};
200 	static const uint8_t *sets_selected;
201 	unsigned int nelem_selected;
202 	unsigned int i, len;
203 	const char *longest;
204 
205 	if (flags & SFLAG_MINIMAL) {
206 		sets_selected = sets_selected_minimal;
207 		nelem_selected = __arraycount(sets_selected_minimal);
208 	} else if (flags & SFLAG_NOX) {
209 		sets_selected = sets_selected_nox;
210 		nelem_selected = __arraycount(sets_selected_nox);
211 	} else {
212 		sets_selected = sets_selected_full;
213 		nelem_selected = __arraycount(sets_selected_full);
214 	}
215 
216 	for (i = 0; i < __arraycount(sets_valid); i++)
217 		set_status[sets_valid[i]] = SET_VALID;
218 	for (i = 0; i < nelem_selected; i++)
219 		set_status[sets_selected[i]] |= SET_SELECTED;
220 
221 	set_status[SET_GROUP] = SET_VALID;
222 
223 	/* Lookup some strings we need lots of times */
224 	msg_yes = msg_string(MSG_Yes);
225 	msg_no = msg_string(MSG_No);
226 	msg_all = msg_string(MSG_All);
227 	msg_some = msg_string(MSG_Some);
228 	msg_none = msg_string(MSG_None);
229 
230 	/* Find longest and use it to determine width of selection menu */
231 	len = strlen(msg_no); longest = msg_no;
232 	i = strlen(msg_yes); if (i > len) {len = i; longest = msg_yes; }
233 	i = strlen(msg_all); if (i > len) {len = i; longest = msg_all; }
234 	i = strlen(msg_some); if (i > len) {len = i; longest = msg_some; }
235 	i = strlen(msg_none); if (i > len) {len = i; longest = msg_none; }
236 	select_menu_width = snprintf(NULL, 0, "%-30s %s", "", longest);
237 
238 	/* Give the md code a chance to choose the right kernel, etc. */
239 	md_init_set_status(flags);
240 }
241 
242 int
243 dir_exists_p(const char *path)
244 {
245 
246 	return file_mode_match(path, S_IFDIR);
247 }
248 
249 int
250 file_exists_p(const char *path)
251 {
252 
253 	return file_mode_match(path, S_IFREG);
254 }
255 
256 int
257 file_mode_match(const char *path, unsigned int mode)
258 {
259 	struct stat st;
260 
261 	return (stat(path, &st) == 0 && (st.st_mode & S_IFMT) == mode);
262 }
263 
264 /* return ram size in MB */
265 uint64_t
266 get_ramsize(void)
267 {
268 	static uint64_t ramsize;
269 
270 	if (ramsize == 0) {
271 		size_t len = sizeof ramsize;
272 		int mib[2] = {CTL_HW, HW_PHYSMEM64};
273 
274 		sysctl(mib, 2, &ramsize, &len, NULL, 0);
275 	}
276 
277 	/* Find out how many Megs ... round up. */
278 	return (ramsize + MEG - 1) / MEG;
279 }
280 
281 void
282 run_makedev(void)
283 {
284 	char *owd;
285 
286 	msg_display_add("\n\n");
287 	msg_display_add(MSG_makedev);
288 
289 	owd = getcwd(NULL, 0);
290 
291 	/* make /dev, in case the user  didn't extract it. */
292 	make_target_dir("/dev");
293 	target_chdir_or_die("/dev");
294 	run_program(0, "/bin/sh MAKEDEV all");
295 
296 	chdir(owd);
297 	free(owd);
298 }
299 
300 /*
301  * Performs in-place replacement of a set of patterns in a file that lives
302  * inside the installed system.  The patterns must be separated by a semicolon.
303  * For example:
304  *
305  * replace("/etc/some-file.conf", "s/prop1=NO/prop1=YES/;s/foo/bar/");
306  */
307 void
308 replace(const char *path, const char *patterns, ...)
309 {
310 	char *spatterns;
311 	va_list ap;
312 
313 	va_start(ap, patterns);
314 	vasprintf(&spatterns, patterns, ap);
315 	va_end(ap);
316 	if (spatterns == NULL)
317 		err(1, "vasprintf(&spatterns, \"%s\", ...)", patterns);
318 
319 	run_program(RUN_CHROOT, "sed -an -e '%s;H;$!d;g;w %s' %s", spatterns,
320 	    path, path);
321 
322 	free(spatterns);
323 }
324 
325 static int
326 floppy_fetch(const char *set_name)
327 {
328 	char post[4];
329 	msg errmsg;
330 	int menu;
331 	int status;
332 	const char *write_mode = ">";
333 
334 	strcpy(post, "aa");
335 
336 	errmsg = "";
337 	menu = MENU_fdok;
338 	for (;;) {
339 		umount_mnt2();
340 		msg_display(errmsg);
341 		msg_fmt_display_add(MSG_fdmount, "%s%s", set_name, post);
342 		process_menu(menu, &status);
343 		if (status != SET_CONTINUE)
344 			return status;
345 		menu = MENU_fdremount;
346 		errmsg = MSG_fdremount;
347 		if (run_program(0, "/sbin/mount -r -t %s %s /mnt2",
348 							fd_type, fd_dev))
349 			continue;
350 		mnt2_mounted = 1;
351 		errmsg = MSG_fdnotfound;
352 
353 		/* Display this because it might take a while.... */
354 		if (run_program(RUN_DISPLAY,
355 			    "sh -c '/bin/cat /mnt2/%s.%s %s %s/%s/%s%s'",
356 			    set_name, post, write_mode,
357 			    target_prefix(), xfer_dir, set_name,
358 			    set_postfix(set_name)))
359 			/* XXX: a read error will give a corrupt file! */
360 			continue;
361 
362 		/* We got that file, advance to next fragment */
363 		if (post[1] < 'z')
364 			post[1]++;
365 		else
366 			post[1] = 'a', post[0]++;
367 		write_mode = ">>";
368 		errmsg = "";
369 		menu = MENU_fdok;
370 	}
371 }
372 
373 /*
374  * Load files from floppy.  Requires a /mnt2 directory for mounting them.
375  */
376 int
377 get_via_floppy(void)
378 {
379 	int rv = -1;
380 
381 	process_menu(MENU_floppysource, &rv);
382 	if (rv == SET_RETRY)
383 		return SET_RETRY;
384 
385 	fetch_fn = floppy_fetch;
386 
387 	/* Set ext_dir for absolute path. */
388 	snprintf(ext_dir_bin, sizeof ext_dir_bin, "%s/%s", target_prefix(), xfer_dir);
389 	snprintf(ext_dir_src, sizeof ext_dir_src, "%s/%s", target_prefix(), xfer_dir);
390 
391 	return SET_OK;
392 }
393 
394 /*
395  * Get the volume name of a ISO9660 file system
396  */
397 static int
398 get_iso9660_volname(int dev, int sess, char *volname, size_t volnamelen)
399 {
400 	int blkno, error, last;
401 	char buf[ISO_BLKSIZE];
402 	struct iso_volume_descriptor *vd = NULL;
403 	struct iso_primary_descriptor *pd = NULL;
404 
405 	for (blkno = sess+16; blkno < sess+16+100; blkno++) {
406 		error = pread(dev, buf, ISO_BLKSIZE, blkno*ISO_BLKSIZE);
407 		if (error == -1)
408 			return -1;
409 		vd = (struct iso_volume_descriptor *)&buf;
410 		if (memcmp(vd->id, ISO_STANDARD_ID, sizeof(vd->id)) != 0)
411 			return -1;
412 		if (isonum_711((const unsigned char *)&vd->type)
413 		     == ISO_VD_PRIMARY) {
414 			pd = (struct iso_primary_descriptor*)buf;
415 			strncpy(volname, pd->volume_id, volnamelen - 1);
416 			volname[volnamelen - 1] = '\0';
417 			last = volnamelen - 1;
418 			while (last >= 0
419 			    && (volname[last] == ' ' || volname[last] == 0))
420 				last--;
421 			volname[last+1] = 0;
422 			return 0;
423 		}
424 	}
425 	return -1;
426 }
427 
428 /*
429  * Local state while iterating CDs and collecting volumes
430  */
431 struct get_available_cds_state {
432 	size_t num_mounted;
433 	struct statvfs *mounted;
434 	struct cd_info *info;
435 	size_t count;
436 };
437 
438 /*
439  * Callback function: if this is a CD, enumerate all volumes on it
440  */
441 static bool
442 get_available_cds_helper(void *arg, const char *device)
443 {
444 	struct get_available_cds_state *state = arg;
445 	char dname[16], tname[16], volname[80], *t;
446 	struct disklabel label;
447 	int part, dev, error, sess, ready, tlen;
448 
449 	if (!is_cdrom_device(device, false))
450 		return true;
451 
452 	sprintf(dname, "/dev/r%s%c", device, 'a'+RAW_PART);
453 	tlen = sprintf(tname, "/dev/%s", device);
454 
455 	/* check if this is mounted already */
456 	for (size_t i = 0; i < state->num_mounted; i++) {
457 		if (strncmp(state->mounted[i].f_mntfromname, tname, tlen)
458 		    == 0) {
459 			t = state->mounted[i].f_mntfromname + tlen;
460 			if (t[0] >= 'a' && t[0] <= 'z' && t[1] == 0)
461 				return true;
462 		}
463 	}
464 
465 	dev = open(dname, O_RDONLY, 0);
466 	if (dev == -1)
467 		return true;
468 
469 	ready = 0;
470 	error = ioctl(dev, DIOCTUR, &ready);
471 	if (error != 0 || ready == 0) {
472 		close(dev);
473 		return true;
474 	}
475 	error = ioctl(dev, DIOCGDINFO, &label);
476 	close(dev);
477 	if (error != 0)
478 		return true;
479 
480 	for (part = 0; part < label.d_npartitions; part++) {
481 
482 		if (label.d_partitions[part].p_fstype == FS_UNUSED
483 		    || label.d_partitions[part].p_size == 0)
484 			continue;
485 
486 		if (label.d_partitions[part].p_fstype == FS_ISO9660) {
487 			sess = label.d_partitions[part].p_cdsession;
488 			sprintf(dname, "/dev/r%s%c", device, 'a'+part);
489 			dev = open(dname, O_RDONLY, 0);
490 			if (dev == -1)
491 				continue;
492 			error = get_iso9660_volname(dev, sess, volname,
493 			    sizeof volname);
494 			close(dev);
495 			if (error)
496 				continue;
497 			sprintf(state->info->device_name,
498 			    "%s%c", device, 'a'+part);
499 			sprintf(state->info->menu, "%s (%s)",
500 			    state->info->device_name, volname);
501 		} else {
502 			/*
503 			 * All install CDs use partition
504 			 * a for the sets.
505 			 */
506 			if (part > 0)
507 				continue;
508 			sprintf(state->info->device_name,
509 			    "%s%c", device, 'a'+part);
510 			strcpy(state->info->menu, state->info->device_name);
511 		}
512 		state->info++;
513 		if (++state->count >= MAX_CD_INFOS)
514 			return false;
515 	}
516 
517 	return true;
518 }
519 
520 /*
521  * Get a list of all available CD media (not drives!), return
522  * the number of entries collected.
523  */
524 static int
525 get_available_cds(void)
526 {
527 	struct get_available_cds_state data;
528 	int n, m;
529 
530 	memset(&data, 0, sizeof data);
531 	data.info = cds;
532 
533 	n = getvfsstat(NULL, 0, ST_NOWAIT);
534 	if (n > 0) {
535 		data.mounted = calloc(n, sizeof(*data.mounted));
536 		m = getvfsstat(data.mounted, n*sizeof(*data.mounted),
537 		    ST_NOWAIT);
538 		assert(m >= 0 && m <= n);
539 		data.num_mounted = m;
540 	}
541 
542 	enumerate_disks(&data, get_available_cds_helper);
543 
544 	free(data.mounted);
545 
546 	return data.count;
547 }
548 
549 static int
550 cd_has_sets(void)
551 {
552 
553 	/* sanity check */
554 	if (cdrom_dev[0] == 0)
555 		return 0;
556 
557 	/* Mount it */
558 	if (run_program(RUN_SILENT, "/sbin/mount -rt cd9660 /dev/%s /mnt2",
559 	    cdrom_dev) != 0)
560 		return 0;
561 
562 	mnt2_mounted = 1;
563 
564 	snprintf(ext_dir_bin, sizeof ext_dir_bin, "%s/%s", "/mnt2", set_dir_bin);
565 	snprintf(ext_dir_src, sizeof ext_dir_src, "%s/%s", "/mnt2", set_dir_src);
566 	return dir_exists_p(ext_dir_bin);
567 }
568 
569 /*
570  * Check whether we can remove the boot media.
571  * If it is not a local filesystem, return -1.
572  * If we can not decide for sure (can not tell MD content from plain ffs
573  * on hard disk, for example), return 0.
574  * If it is a CD/DVD, return 1.
575  */
576 int
577 boot_media_still_needed(void)
578 {
579 	struct statvfs sb;
580 
581 	if (statvfs("/", &sb) == 0) {
582 		if (!(sb.f_flag & ST_LOCAL))
583 			return -1;
584 		if (strcmp(sb.f_fstypename, MOUNT_CD9660) == 0
585 			   || strcmp(sb.f_fstypename, MOUNT_UDF) == 0)
586 			return 1;
587 	}
588 
589 	return 0;
590 }
591 
592 bool
593 root_is_read_only(void)
594 {
595 	struct statvfs sb;
596 
597 	if (statvfs("/", &sb) == 0)
598 		return sb.f_flag & ST_RDONLY;
599 
600 	return false;
601 }
602 
603 /*
604  * Get from a CDROM distribution.
605  * Also used on "installation using bootable install media"
606  * as the default option in the "distmedium" menu.
607  */
608 int
609 get_via_cdrom(void)
610 {
611 	menu_ent cd_menu[MAX_CD_INFOS];
612 	struct stat sb;
613 	int rv, num_cds, menu_cd, i, selected_cd = 0;
614 	int mib[2];
615 	char rootdev[SSTRSIZE] = "";
616 	size_t varlen;
617 
618 	/* If root is not md(4) and we have set dir, skip this step. */
619 	mib[0] = CTL_KERN;
620 	mib[1] = KERN_ROOT_DEVICE;
621 	varlen = sizeof(rootdev);
622 	(void)sysctl(mib, 2, rootdev, &varlen, NULL, 0);
623 	if (stat(set_dir_bin, &sb) == 0 && S_ISDIR(sb.st_mode) &&
624 	    strncmp("md", rootdev, 2) != 0) {
625 	    	strlcpy(ext_dir_bin, set_dir_bin, sizeof ext_dir_bin);
626 	    	strlcpy(ext_dir_src, set_dir_src, sizeof ext_dir_src);
627 		return SET_OK;
628 	}
629 
630 	memset(cd_menu, 0, sizeof(cd_menu));
631 	num_cds = get_available_cds();
632 	if (num_cds <= 0) {
633 		msg_display(MSG_No_cd_found);
634 		cdrom_dev[0] = 0;
635 	} else if (num_cds == 1) {
636 		/* single CD found, check for sets on it */
637 		strcpy(cdrom_dev, cds[0].device_name);
638 		if (cd_has_sets())
639 			return SET_OK;
640 	} else {
641 		for (i = 0; i< num_cds; i++) {
642 			cd_menu[i].opt_name = cds[i].menu;
643 			cd_menu[i].opt_flags = OPT_EXIT;
644 			cd_menu[i].opt_action = set_menu_select;
645 		}
646 		/* create a menu offering available choices */
647 		menu_cd = new_menu(MSG_Available_cds,
648 			cd_menu, num_cds, -1, 4, 0, 0,
649 			MC_SCROLL | MC_NOEXITOPT,
650 			NULL, NULL, NULL, NULL, NULL);
651 		if (menu_cd == -1)
652 			return SET_RETRY;
653 		msg_display(MSG_ask_cd);
654 		process_menu(menu_cd, &selected_cd);
655 		free_menu(menu_cd);
656 		strcpy(cdrom_dev, cds[selected_cd].device_name);
657 		if (cd_has_sets())
658 			return SET_OK;
659 	}
660 
661 	if (num_cds >= 1 && mnt2_mounted) {
662 		umount_mnt2();
663 		hit_enter_to_continue(MSG_cd_path_not_found, NULL);
664 	}
665 
666 	/* ask for paths on the CD */
667 	rv = -1;
668 	process_menu(MENU_cdromsource, &rv);
669 	if (rv == SET_RETRY || rv == SET_ABANDON)
670 		return rv;
671 
672 	if (cd_has_sets())
673 		return SET_OK;
674 
675 	return SET_RETRY;
676 }
677 
678 
679 /*
680  * Get from a pathname inside an unmounted local filesystem
681  * (e.g., where sets were preloaded onto a local DOS partition)
682  */
683 int
684 get_via_localfs(void)
685 {
686 	int rv = -1;
687 
688 	/* Get device, filesystem, and filepath */
689 	process_menu (MENU_localfssource, &rv);
690 	if (rv == SET_RETRY)
691 		return SET_RETRY;
692 
693 	/* Mount it */
694 	if (run_program(0, "/sbin/mount -rt %s /dev/%s /mnt2",
695 	    localfs_fs, localfs_dev))
696 		return SET_RETRY;
697 
698 	mnt2_mounted = 1;
699 
700 	snprintf(ext_dir_bin, sizeof ext_dir_bin, "%s/%s/%s",
701 		"/mnt2", localfs_dir, set_dir_bin);
702 	snprintf(ext_dir_src, sizeof ext_dir_src, "%s/%s/%s",
703 		"/mnt2", localfs_dir, set_dir_src);
704 
705 	return SET_OK;
706 }
707 
708 /*
709  * Get from an already-mounted pathname.
710  */
711 
712 int
713 get_via_localdir(void)
714 {
715 	int rv = -1;
716 
717 	/* Get filepath */
718 	process_menu(MENU_localdirsource, &rv);
719 	if (rv == SET_RETRY)
720 		return SET_RETRY;
721 
722 	/*
723 	 * We have to have an absolute path ('cos pax runs in a
724 	 * different directory), make it so.
725 	 */
726 	snprintf(ext_dir_bin, sizeof ext_dir_bin, "/%s/%s", localfs_dir, set_dir_bin);
727 	snprintf(ext_dir_src, sizeof ext_dir_src, "/%s/%s", localfs_dir, set_dir_src);
728 
729 	return SET_OK;
730 }
731 
732 
733 /*
734  * Support for custom distribution fetches / unpacks.
735  */
736 
737 unsigned int
738 set_X11_selected(void)
739 {
740 	int i;
741 
742 	for (i = SET_X11_FIRST; ++i < SET_X11_LAST;)
743 		if (set_status[i] & SET_SELECTED)
744 			return 1;
745 	return 0;
746 }
747 
748 unsigned int
749 get_kernel_set(void)
750 {
751 	int i;
752 
753 	for (i = SET_KERNEL_FIRST; ++i < SET_KERNEL_LAST;)
754 		if (set_status[i] & SET_SELECTED)
755 			return i;
756 	return SET_NONE;
757 }
758 
759 void
760 set_kernel_set(unsigned int kernel_set)
761 {
762 	int i;
763 
764 	/* only one kernel set is allowed */
765 	for (i = SET_KERNEL_FIRST; ++i < SET_KERNEL_LAST;)
766 		set_status[i] &= ~SET_SELECTED;
767 	set_status[kernel_set] |= SET_SELECTED;
768 }
769 
770 void
771 set_noextract_set(unsigned int set)
772 {
773 
774 	set_status[set] |= SET_NO_EXTRACT;
775 }
776 
777 static int
778 set_toggle(menudesc *menu, void *arg)
779 {
780 	distinfo **distp = arg;
781 	int set = distp[menu->cursel]->set;
782 
783 	if (set > SET_KERNEL_FIRST && set < SET_KERNEL_LAST &&
784 	    !(set_status[set] & SET_SELECTED))
785 		set_kernel_set(set);
786 	else
787 		set_status[set] ^= SET_SELECTED;
788 	return 0;
789 }
790 
791 static int
792 set_all_none(menudesc *menu, void *arg, int set, int clr)
793 {
794 	distinfo **distp = arg;
795 	distinfo *dist = *distp;
796 	int nested;
797 
798 	for (nested = 0; dist->set != SET_GROUP_END || nested--; dist++) {
799 		if (dist->set == SET_GROUP) {
800 			nested++;
801 			continue;
802 		}
803 		set_status[dist->set] = (set_status[dist->set] & ~clr) | set;
804 	}
805 	return 0;
806 }
807 
808 static int
809 set_all(menudesc *menu, void *arg)
810 {
811 	return set_all_none(menu, arg, SET_SELECTED, 0);
812 }
813 
814 static int
815 set_none(menudesc *menu, void *arg)
816 {
817 	return set_all_none(menu, arg, 0, SET_SELECTED);
818 }
819 
820 static void
821 set_label(menudesc *menu, int opt, void *arg)
822 {
823 	distinfo **distp = arg;
824 	distinfo *dist = distp[opt];
825 	const char *selected;
826 	const char *desc;
827 	int nested;
828 
829 	desc = dist->desc;
830 
831 	if (dist->set != SET_GROUP)
832 		selected = set_status[dist->set] & SET_SELECTED ? msg_yes : msg_no;
833 	else {
834 		/* sub menu - display None/Some/All */
835 		nested = 0;
836 		selected = "unknown";
837 		while ((++dist)->set != SET_GROUP_END || nested--) {
838 			if (dist->set == SET_GROUP) {
839 				nested++;
840 				continue;
841 			}
842 			if (!(set_status[dist->set] & SET_VALID))
843 				continue;
844 			if (set_status[dist->set] & SET_SELECTED) {
845 				if (selected == msg_none) {
846 					selected = msg_some;
847 					break;
848 				}
849 				selected = msg_all;
850 			} else {
851 				if (selected == msg_all) {
852 					selected = msg_some;
853 					break;
854 				}
855 				selected = msg_none;
856 			}
857 		}
858 	}
859 
860 	wprintw(menu->mw, "%-30s %s", msg_string(desc), selected);
861 }
862 
863 static int set_sublist(menudesc *menu, void *arg);
864 
865 static int
866 initialise_set_menu(distinfo *dist, menu_ent *me, distinfo **de, int all_none)
867 {
868 	int set;
869 	int sets;
870 	int nested;
871 
872 	for (sets = 0; ; dist++) {
873 		set = dist->set;
874 		if (set == SET_LAST || set == SET_GROUP_END)
875 			break;
876 		if (!(set_status[set] & SET_VALID))
877 			continue;
878 		*de = dist;
879 		memset(me, 0, sizeof(*me));
880 		if (set != SET_GROUP)
881 			me->opt_action = set_toggle;
882 		else {
883 			/* Collapse sublist */
884 			nested = 0;
885 			while ((++dist)->set != SET_GROUP_END || nested--) {
886 				if (dist->set == SET_GROUP)
887 					nested++;
888 			}
889 			me->opt_action = set_sublist;
890 		}
891 		sets++;
892 		de++;
893 		me++;
894 	}
895 
896 	if (all_none) {
897 		me->opt_name = MSG_select_all;
898 		me->opt_action = set_all;
899 		me++;
900 		me->opt_name = MSG_select_none;
901 		me->opt_action = set_none;
902 		sets += 2;
903 	}
904 
905 	return sets;
906 }
907 
908 static int
909 set_sublist(menudesc *menu, void *arg)
910 {
911 	distinfo *de[SET_LAST];
912 	menu_ent me[SET_LAST];
913 	distinfo **dist = arg;
914 	int menu_no;
915 	int sets;
916 
917 	memset(me, 0, sizeof(me));
918 	sets = initialise_set_menu(dist[menu->cursel] + 1, me, de, 1);
919 
920 	menu_no = new_menu(NULL, me, sets, 20, 10, 0, select_menu_width,
921 		MC_SUBMENU | MC_SCROLL | MC_DFLTEXIT,
922 		NULL, set_label, NULL, NULL,
923 		MSG_install_selected_sets);
924 
925 	process_menu(menu_no, de);
926 	free_menu(menu_no);
927 
928 	return 0;
929 }
930 
931 void
932 customise_sets(void)
933 {
934 	distinfo *de[SET_LAST];
935 	menu_ent me[SET_LAST];
936 	int sets;
937 	int menu_no;
938 
939 	msg_display(MSG_cur_distsets);
940 	msg_table_add(MSG_cur_distsets_header);
941 
942 	memset(me, 0, sizeof(me));
943 	sets = initialise_set_menu(dist_list, me, de, 0);
944 
945 	menu_no = new_menu(NULL, me, sets, 0, 5, 0, select_menu_width,
946 		MC_SCROLL | MC_NOBOX | MC_DFLTEXIT | MC_NOCLEAR,
947 		NULL, set_label, NULL, NULL,
948 		MSG_install_selected_sets);
949 
950 	process_menu(menu_no, de);
951 	free_menu(menu_no);
952 }
953 
954 /*
955  * Extract_file **REQUIRES** an absolute path in ext_dir.  Any code
956  * that sets up xfer_dir for use by extract_file needs to put in the
957  * full path name to the directory.
958  */
959 
960 int
961 extract_file(distinfo *dist, int update)
962 {
963 	const char *dest_dir = NULL;
964 
965 	if (update && (dist->set == SET_ETC || dist->set == SET_X11_ETC)) {
966 		dest_dir = "/.sysinst";
967 		make_target_dir(dest_dir);
968 	} else if (dist->set == SET_PKGSRC)
969 		dest_dir = "/usr";
970 	else
971 		dest_dir = "/";
972 
973 	return extract_file_to(dist, update, dest_dir, NULL, true);
974 }
975 
976 int
977 extract_file_to(distinfo *dist, int update, const char *dest_dir,
978     const char *extr_pattern, bool do_stats)
979 {
980 	char path[STRSIZE];
981 	char *owd;
982 	int   rval;
983 
984 	/* If we might need to tidy up, ensure directory exists */
985 	if (fetch_fn != NULL)
986 		make_target_dir(xfer_dir);
987 
988 	(void)snprintf(path, sizeof path, "%s/%s%s",
989 	    ext_dir_for_set(dist->name), dist->name, set_postfix(dist->name));
990 
991 	owd = getcwd(NULL, 0);
992 
993 	/* Do we need to fetch the file now? */
994 	if (fetch_fn != NULL) {
995 		rval = fetch_fn(dist->name);
996 		if (rval != SET_OK)
997 			return rval;
998 	}
999 
1000 	/* check tarfile exists */
1001 	if (!file_exists_p(path)) {
1002 
1003 #ifdef SUPPORT_8_3_SOURCE_FILESYSTEM
1004 		/*
1005 		 * Update path to use dist->name truncated to the first eight
1006 		 * characters and check again
1007 		 */
1008 		(void)snprintf(path, sizeof path,
1009 		    "%s/%.8s%.4s", /* 4 as includes '.' */
1010 		    ext_dir_for_set(dist->name), dist->name,
1011 		    set_postfix(dist->name));
1012 
1013 		if (!file_exists_p(path)) {
1014 #endif /* SUPPORT_8_3_SOURCE_FILESYSTEM */
1015 			if (do_stats)
1016 				tarstats.nnotfound++;
1017 
1018 			char *err = str_arg_subst(msg_string(MSG_notarfile),
1019 			    1, &dist->name);
1020 			hit_enter_to_continue(err, NULL);
1021 			free(err);
1022 			free(owd);
1023 			return SET_RETRY;
1024 		}
1025 #ifdef SUPPORT_8_3_SOURCE_FILESYSTEM
1026 	}
1027 #endif /* SUPPORT_8_3_SOURCE_FILESYSTEM */
1028 
1029 	if (do_stats)
1030 		tarstats.nfound++;
1031 	/* cd to the target root. */
1032 	target_chdir_or_die(dest_dir);
1033 
1034 	/*
1035 	 * /usr/X11R7/lib/X11/xkb/symbols/pc was a directory in 5.0
1036 	 * but is a file in 5.1 and beyond, so on upgrades we need to
1037 	 * delete it before extracting the xbase set.
1038 	 */
1039 	if (update && dist->set == SET_X11_BASE)
1040 		run_program(0, "rm -rf usr/X11R7/lib/X11/xkb/symbols/pc");
1041 
1042 	/* now extract set files into "./". */
1043 	if (extr_pattern != NULL) {
1044 		rval = run_program(RUN_DISPLAY | RUN_PROGRESS,
1045 				"progress -zf %s tar --chroot "
1046 				TAR_EXTRACT_FLAGS " - '%s'",
1047 				path, extr_pattern);
1048 	} else {
1049 		rval = run_program(RUN_DISPLAY | RUN_PROGRESS,
1050 				"progress -zf %s tar --chroot "
1051 				TAR_EXTRACT_FLAGS " -", path);
1052 	}
1053 
1054 	chdir(owd);
1055 	free(owd);
1056 
1057 	/* Check rval for errors and give warning. */
1058 	if (rval != 0) {
1059 		if (do_stats)
1060 			tarstats.nerror++;
1061 		msg_fmt_display(MSG_tarerror, "%s", path);
1062 		hit_enter_to_continue(NULL, NULL);
1063 		return SET_RETRY;
1064 	}
1065 
1066 	if (fetch_fn != NULL && clean_xfer_dir) {
1067 		run_program(0, "rm %s", path);
1068 		/* Plausibly we should unlink an empty xfer_dir as well */
1069 	}
1070 
1071 	set_status[dist->set] |= SET_INSTALLED;
1072 	if (do_stats)
1073 		tarstats.nsuccess++;
1074 	return SET_OK;
1075 }
1076 
1077 static void
1078 skip_set(distinfo *dist, int skip_type)
1079 {
1080 	int nested;
1081 	int set;
1082 
1083 	nested = 0;
1084 	while ((++dist)->set != SET_GROUP_END || nested--) {
1085 		set = dist->set;
1086 		if (set == SET_GROUP) {
1087 			nested++;
1088 			continue;
1089 		}
1090 		if (set == SET_LAST)
1091 			break;
1092 		if (set_status[set] == (SET_SELECTED | SET_VALID))
1093 			set_status[set] |= SET_SKIPPED;
1094 		tarstats.nskipped++;
1095 	}
1096 }
1097 
1098 distinfo*
1099 get_set_distinfo(int opt)
1100 {
1101 	distinfo *dist;
1102 	int set;
1103 
1104 	for (dist = dist_list; (set = dist->set) != SET_LAST; dist++) {
1105 		if (set != opt)
1106 			continue;
1107 		if (dist->name == NULL)
1108 			continue;
1109 		if ((set_status[set] & (SET_VALID | SET_SELECTED))
1110 		    != (SET_VALID | SET_SELECTED))
1111 			continue;
1112 		return dist;
1113 	}
1114 
1115 	return NULL;
1116 }
1117 
1118 #ifdef CHECK_ENTROPY
1119 
1120 char entropy_file[PATH_MAX];
1121 
1122 /*
1123  * Are we short of entropy?
1124  */
1125 size_t
1126 entropy_needed(void)
1127 {
1128 	int needed;
1129 	size_t len;
1130 
1131 	len = sizeof(needed);
1132 	if (sysctlbyname("kern.entropy.needed", &needed, &len, NULL, 0))
1133 		return 0;
1134 
1135 	if (needed < 0)
1136 		return 0;
1137 
1138 	return needed;
1139 }
1140 
1141 static void
1142 entropy_write_to_kernel(const uint8_t *data, size_t len)
1143 {
1144 	int fd;
1145 
1146 	fd = open(_PATH_RANDOM, O_RDWR, 0);
1147 	if (fd >= 0) {
1148 		write(fd, data, len);
1149 		close(fd);
1150 	}
1151 }
1152 
1153 static void
1154 entropy_add_manual(void)
1155 {
1156 	SHA256_CTX ctx;
1157 	char buf[256];
1158 	uint8_t digest[SHA256_DIGEST_LENGTH];
1159 	size_t l;
1160 	int txt_y, maxy, init_y;
1161 	bool ok = false;
1162 
1163 	msg_display(MSG_entropy_enter_manual1);
1164 	msg_printf("\n\n");
1165 	msg_display_add(MSG_entropy_enter_manual2);
1166 	msg_printf("\n\n   dd if=/dev/random bs=32 count=16 | openssl base64\n\n");
1167 	msg_display_add(MSG_entropy_enter_manual3);
1168 	msg_printf("\n\n");
1169 	SHA256_Init(&ctx);
1170 	txt_y = getcury(mainwin);
1171 	maxy = getmaxy(mainwin);
1172 	init_y = txt_y;
1173 
1174 	echo();
1175 	do {
1176 		txt_y++;
1177 		if (txt_y >= maxy) {
1178 			txt_y = init_y;
1179 			wmove(mainwin, txt_y, 0);
1180 			wclrtobot(mainwin);
1181 		} else {
1182 			wmove(mainwin, txt_y, 0);
1183 		}
1184 		msg_fmt_table_add(0, "> ");
1185 		mvwgetnstr(mainwin, txt_y, 2, buf, sizeof buf);
1186 		l = strlen(buf);
1187 		if (l > 0)
1188 			SHA256_Update(&ctx, (const uint8_t*)buf, l);
1189 	} while(l > 0);
1190 	noecho();
1191 	ok = ctx.bitcount >= 256;
1192 	SHA256_Final(digest, &ctx);
1193 
1194 	wmove(mainwin, init_y, 0);
1195 	wclrtobot(mainwin);
1196 	wrefresh(mainwin);
1197 
1198 	if (ok)
1199 		entropy_write_to_kernel(digest, sizeof digest);
1200 	else
1201 		hit_enter_to_continue(NULL, MSG_entropy_manual_not_enough);
1202 }
1203 
1204 /*
1205  * Get a file by some means and return a (potentially only
1206  * temporary valid) path to the local copy.
1207  * If mountpt is nonempty, the caller should unmount that
1208  * directory after processing the file.
1209  * Return success if the file is available, or failure if
1210  * the user cancelled the request or network transfer failed.
1211  */
1212 static bool
1213 entropy_get_file(bool use_netbsd_seed, char *path)
1214 {
1215 	static struct ftpinfo server = { .user = "ftp" };
1216 	char url[STRSIZE], tmpf[PATH_MAX], mountpt[PATH_MAX];
1217 	const char *ftp_opt;
1218 	arg_rv arg;
1219 	int rv = 0;
1220 	const char *file_desc = msg_string(use_netbsd_seed ?
1221 	    MSG_entropy_seed : MSG_entropy_data);
1222 	char *dir;
1223 
1224 	path[0] = 0;
1225 	mountpt[0] = 0;
1226 
1227 	sprintf(tmpf, "/tmp/entr.%06x", getpid());
1228 
1229 	msg_display(use_netbsd_seed ?
1230 	    MSG_entropy_seed_hdr : MSG_entropy_data_hdr);
1231 	msg_printf("\n\n    %s\n\n",
1232 	    use_netbsd_seed ?
1233 	    "rndctl -S /tmp/entropy-file" :
1234 	    "dd if=/dev/random bs=32 count=1 of=/tmp/random.tmp");
1235 	strcpy(entropy_file, use_netbsd_seed ?
1236 	    "entropy-file" : "random.tmp");
1237 	process_menu(MENU_entropy_select_file, &rv);
1238 	switch (rv) {
1239 	case 1:
1240 	case 2:
1241 #ifndef DEBUG
1242 		if (!network_up)
1243 			config_network();
1244 #endif
1245 		server.xfer = rv == 1 ? XFER_HTTP : XFER_FTP;
1246 		arg.arg = &server;
1247 		arg.rv = -1;
1248 		msg_display_add_subst(MSG_entropy_via_download, 1, file_desc);
1249 		msg_printf("\n\n");
1250 		process_menu(MENU_entropy_ftpsource, &arg);
1251 		if (arg.rv == SET_RETRY)
1252 			return false;
1253 		make_url(url, &server, entropy_file);
1254 		if (server.xfer == XFER_FTP &&
1255 		    strcmp("ftp", server.user) == 0 && server.pass[0] == 0) {
1256 			/* do anon ftp */
1257 			ftp_opt = "-a ";
1258 		} else {
1259 			ftp_opt = "";
1260 		}
1261 		rv = run_program(RUN_DISPLAY | RUN_PROGRESS,
1262 		    "/usr/bin/ftp %s -o %s %s",
1263 		    ftp_opt, tmpf, url);
1264 		strcpy(path, tmpf);
1265 		return rv == 0;
1266 	case 3:
1267 #ifndef DEBUG
1268 		if (!network_up)
1269 			config_network();
1270 #endif
1271 		rv = -1;
1272 		msg_display_add_subst(MSG_entropy_via_nfs, 1, file_desc);
1273 		msg_printf("\n\n");
1274 		process_menu(MENU_entropy_nfssource, &rv);
1275 		if (rv == SET_RETRY)
1276 			return false;
1277 		if (nfs_host[0] != 0 && nfs_dir[0] != 0 &&
1278 		    entropy_file[0] != 0) {
1279 			strcpy(mountpt, "/tmp/ent-mnt.XXXXXX");
1280 			dir = mkdtemp(mountpt);
1281 			if (dir == NULL)
1282 				return false;
1283 			sprintf(path, "%s/%s", mountpt, entropy_file);
1284 			if (run_program(RUN_SILENT,
1285 			    "mount -t nfs -r %s:/%s %s",
1286 			    nfs_host, nfs_dir, mountpt) == 0) {
1287 				run_program(RUN_SILENT,
1288 				    "cp %s %s", path, tmpf);
1289 				run_program(RUN_SILENT,
1290 				    "umount %s", mountpt);
1291 				rmdir(mountpt);
1292 				strcpy(path, tmpf);
1293 			}
1294 		}
1295 		break;
1296 	case 4:
1297 		rv = -1;
1298 		/* Get device, filesystem, and filepath */
1299 		process_menu (MENU_entropy_localfs, &rv);
1300 		if (rv == SET_RETRY)
1301 			return false;
1302 		if (localfs_dev[0] != 0 && localfs_fs[0] != 0 &&
1303 		    entropy_file[0] != 0) {
1304 			strcpy(mountpt, "/tmp/ent-mnt.XXXXXX");
1305 			dir = mkdtemp(mountpt);
1306 			if (dir == NULL)
1307 				return false;
1308 			sprintf(path, "%s/%s", mountpt, entropy_file);
1309 			if (run_program(RUN_SILENT,
1310 			    "mount -t %s -r /dev/%s %s",
1311 			    localfs_fs, localfs_dev, mountpt) == 0) {
1312 				run_program(RUN_SILENT,
1313 				    "cp %s %s", path, tmpf);
1314 				run_program(RUN_SILENT,
1315 				    "umount %s", mountpt);
1316 				rmdir(mountpt);
1317 				strcpy(path, tmpf);
1318 			}
1319 		}
1320 		break;
1321 	}
1322 	return path[0] != 0;
1323 }
1324 
1325 static void
1326 entropy_add_bin_file(void)
1327 {
1328 	char fname[PATH_MAX];
1329 
1330 	if (!entropy_get_file(false, fname))
1331 		return;
1332 	if (access(fname, R_OK) == 0)
1333 		run_program(RUN_SILENT, "dd if=%s of=" _PATH_RANDOM,
1334 		    fname);
1335 }
1336 
1337 static void
1338 entropy_add_seed(void)
1339 {
1340 	char fname[PATH_MAX];
1341 
1342 	if (!entropy_get_file(true, fname))
1343 		return;
1344 	if (access(fname, R_OK) == 0)
1345 		run_program(RUN_SILENT, "rndctl -L %s", fname);
1346 }
1347 
1348 /*
1349  * return true if we have enough entropy
1350  */
1351 bool
1352 do_add_entropy(void)
1353 {
1354 	int rv;
1355 
1356 	for (;;) {
1357 		if (entropy_needed() == 0)
1358 			return true;
1359 
1360 		msg_clear();
1361 		rv = 0;
1362 		process_menu(MENU_not_enough_entropy, &rv);
1363 		switch (rv) {
1364 		case 0:
1365 			return false;
1366 		case 1:
1367 			entropy_add_manual();
1368 			break;
1369 		case 2:
1370 			entropy_add_seed();
1371 			break;
1372 		case 3:
1373 			entropy_add_bin_file();
1374 			break;
1375 		default:
1376 			/*
1377 			 * retry after small delay to give a new USB device
1378 			 * a chance to attach and do deliver some
1379 			 * entropy
1380 			 */
1381 			msg_display(".");
1382 			for (size_t i = 0; i < 10; i++) {
1383 				if (entropy_needed() == 0)
1384 					return true;
1385 				sleep(1);
1386 				msg_display_add(".");
1387 			}
1388 		}
1389 	}
1390 }
1391 #endif
1392 
1393 
1394 
1395 /*
1396  * Get and unpack the distribution.
1397  * Show success_msg if installation completes.
1398  * Otherwise show failure_msg and wait for the user to ack it before continuing.
1399  * success_msg and failure_msg must both be 0-adic messages.
1400  */
1401 int
1402 get_and_unpack_sets(int update, msg setupdone_msg, msg success_msg, msg failure_msg)
1403 {
1404 	distinfo *dist;
1405 	int status;
1406 	int set, olderror, oldfound;
1407 	bool entropy_loaded = false;
1408 
1409 	/* Ensure mountpoint for distribution files exists in current root. */
1410 	(void)mkdir("/mnt2", S_IRWXU| S_IRGRP|S_IXGRP | S_IROTH|S_IXOTH);
1411 	if (script)
1412 		(void)fprintf(script, "mkdir -m 755 /mnt2\n");
1413 
1414 	/* reset failure/success counters */
1415 	memset(&tarstats, 0, sizeof(tarstats));
1416 
1417 	/* Find out which files to "get" if we get files. */
1418 
1419 	/* Accurately count selected sets */
1420 	for (dist = dist_list; (set = dist->set) != SET_LAST; dist++) {
1421 		if (dist->name == NULL)
1422 			continue;
1423 		if (set_status[set] & SET_NO_EXTRACT)
1424 			continue;
1425 		if ((set_status[set] & (SET_VALID | SET_SELECTED))
1426 		    == (SET_VALID | SET_SELECTED))
1427 			tarstats.nselected++;
1428 	}
1429 
1430 	status = SET_RETRY;
1431 	for (dist = dist_list; (set = dist->set) != SET_LAST; dist++) {
1432 		if (dist->name == NULL)
1433 			continue;
1434 		if (set_status[set] != (SET_VALID | SET_SELECTED))
1435 			continue;
1436 
1437 		/* save stats, in case we will retry */
1438 		oldfound = tarstats.nfound;
1439 		olderror = tarstats.nerror;
1440 
1441 		if (status != SET_OK) {
1442 			/* This might force a redraw.... */
1443 			clearok(curscr, 1);
1444 			touchwin(stdscr);
1445 			wrefresh(stdscr);
1446 			/* Sort out the location of the set files */
1447 			do {
1448 				umount_mnt2();
1449 				msg_fmt_display(MSG_distmedium, "%d%d%s",
1450 				    tarstats.nselected,
1451 				    tarstats.nsuccess + tarstats.nskipped,
1452 				    dist->name);
1453 				fetch_fn = NULL;
1454 				process_menu(MENU_distmedium, &status);
1455 			} while (status == SET_RETRY);
1456 
1457 			if (status == SET_SKIP) {
1458 				set_status[set] |= SET_SKIPPED;
1459 				tarstats.nskipped++;
1460 				continue;
1461 			}
1462 			if (status == SET_SKIP_GROUP) {
1463 				skip_set(dist, status);
1464 				continue;
1465 			}
1466 			if (status != SET_OK) {
1467 				hit_enter_to_continue(failure_msg, NULL);
1468 				return 1;
1469 			}
1470 		}
1471 
1472 		if (set_status[set] & SET_NO_EXTRACT)
1473 			continue;
1474 
1475 		/* Try to extract this set */
1476 		status = extract_file(dist, update);
1477 		if (status == SET_RETRY) {
1478 			/* do this set again */
1479 			dist--;
1480 			/* and reset statistics to what we had before this
1481 			 * set */
1482 			tarstats.nfound = oldfound;
1483 			tarstats.nerror = olderror;
1484 		}
1485 	}
1486 
1487 #ifdef MD_SET_EXTRACT_FINALIZE
1488 	MD_SET_EXTRACT_FINALIZE(update);
1489 #endif
1490 
1491 	if (tarstats.nerror == 0 && tarstats.nsuccess == tarstats.nselected) {
1492 		msg_display(MSG_endtarok);
1493 		/* Give user a chance to see the success message */
1494 		sleep(1);
1495 	} else {
1496 		/* We encountered errors. Let the user know. */
1497 		msg_fmt_display(MSG_endtar, "%d%d%d%d%d%d",
1498 		    tarstats.nselected, tarstats.nnotfound, tarstats.nskipped,
1499 		    tarstats.nfound, tarstats.nsuccess, tarstats.nerror);
1500 		hit_enter_to_continue(NULL, NULL);
1501 	}
1502 
1503 	/*
1504 	 * postinstall needs to be run after extracting all sets, because
1505 	 * otherwise /var/db/obsolete will only have current information
1506 	 * from the base, comp, and etc sets.
1507 	 */
1508 	if (update && (set_status[SET_ETC] & SET_INSTALLED)) {
1509 		int oldsendmail;
1510 		oldsendmail = run_program(RUN_DISPLAY | RUN_CHROOT |
1511 					  RUN_ERROR_OK | RUN_PROGRESS,
1512 					  "/usr/sbin/postinstall -s /.sysinst -d / check mailerconf");
1513 		if (oldsendmail == 1) {
1514 			msg_display(MSG_oldsendmail);
1515 			if (ask_yesno(NULL)) {
1516 				run_program(RUN_DISPLAY | RUN_CHROOT,
1517 					    "/usr/sbin/postinstall -s /.sysinst -d / fix mailerconf");
1518 			}
1519 		}
1520 		run_program(RUN_DISPLAY | RUN_CHROOT,
1521 			"/usr/sbin/postinstall -s /.sysinst -d / fix");
1522 
1523 		/* Don't discard the system's old entropy if any */
1524 		run_program(RUN_CHROOT | RUN_SILENT,
1525 		    "/etc/rc.d/random_seed start");
1526 		entropy_loaded = true;
1527 	}
1528 
1529 	/* Configure the system */
1530 	if (set_status[SET_BASE] & SET_INSTALLED)
1531 		run_makedev();
1532 
1533 	if (!update) {
1534 		struct stat sb1, sb2;
1535 
1536 		if (stat(target_expand("/"), &sb1) == 0
1537 		    && stat(target_expand("/var"), &sb2) == 0
1538 		    && sb1.st_dev != sb2.st_dev) {
1539 			add_rc_conf("random_file=/etc/entropy-file\n");
1540 			if (target_file_exists_p("/boot.cfg")) {
1541 				run_program(RUN_CHROOT|RUN_FATAL,
1542 					    "sh -c 'sed -e s./var/db/./etc/. "
1543 					    "< /boot.cfg "
1544 					    "> /tmp/boot.cfg.tmp'");
1545 				mv_within_target_or_die("/tmp/boot.cfg.tmp",
1546 							"/boot.cfg");
1547 
1548 			}
1549 		}
1550 
1551 #ifdef MD_BOOT_CFG_FINALIZE
1552 		if (target_file_exists_p("/boot.cfg")) {
1553 			MD_BOOT_CFG_FINALIZE("/boot.cfg");
1554 		}
1555 #endif
1556 
1557 		/* Save keyboard type */
1558 		save_kb_encoding();
1559 
1560 		/* Other configuration. */
1561 		mnt_net_config();
1562 	}
1563 
1564 	/* Mounted dist dir? */
1565 	umount_mnt2();
1566 
1567 #ifdef CHECK_ENTROPY
1568 	entropy_loaded |= entropy_needed() == 0;
1569 #endif
1570 
1571 	/* Save entropy -- on some systems it's ~all we'll ever get */
1572 	if (!update || entropy_loaded)
1573 		run_program(RUN_SILENT | RUN_CHROOT | RUN_ERROR_OK,
1574 		    "/etc/rc.d/random_seed stop");
1575 	/* Install/Upgrade complete ... reboot or exit to script */
1576 	hit_enter_to_continue(success_msg, NULL);
1577 	return 0;
1578 }
1579 
1580 void
1581 umount_mnt2(void)
1582 {
1583 	if (!mnt2_mounted)
1584 		return;
1585 	run_program(RUN_SILENT, "/sbin/umount /mnt2");
1586 	mnt2_mounted = 0;
1587 }
1588 
1589 
1590 /*
1591  * Do a quick sanity check that  the target can reboot.
1592  * return 1 if everything OK, 0 if there is a problem.
1593  * Uses a table of files we expect to find after a base install/upgrade.
1594  */
1595 
1596 /* test flag and pathname to check for after unpacking. */
1597 struct check_table { unsigned int mode; const char *path;} checks[] = {
1598   { S_IFREG, "/netbsd" },
1599   { S_IFDIR, "/etc" },
1600   { S_IFREG, "/etc/fstab" },
1601   { S_IFREG, "/sbin/init" },
1602   { S_IFREG, "/bin/sh" },
1603   { S_IFREG, "/etc/rc" },
1604   { S_IFREG, "/etc/rc.subr" },
1605   { S_IFREG, "/etc/rc.conf" },
1606   { S_IFDIR, "/dev" },
1607   { S_IFCHR, "/dev/console" },
1608 /* XXX check for rootdev in target /dev? */
1609   { S_IFREG, "/sbin/fsck" },
1610   { S_IFREG, "/sbin/fsck_ffs" },
1611   { S_IFREG, "/sbin/mount" },
1612   { S_IFREG, "/sbin/mount_ffs" },
1613   { S_IFREG, "/sbin/mount_nfs" },
1614 #if defined(DEBUG) || defined(DEBUG_CHECK)
1615   { S_IFREG, "/foo/bar" },		/* bad entry to exercise warning */
1616 #endif
1617   { 0, 0 }
1618 
1619 };
1620 
1621 /*
1622  * Check target for a single file.
1623  */
1624 static int
1625 check_for(unsigned int mode, const char *pathname)
1626 {
1627 	int found;
1628 
1629 	found = (target_test(mode, pathname) == 0);
1630 	if (found == 0)
1631 		msg_fmt_display(MSG_rootmissing, "%s", pathname);
1632 	return found;
1633 }
1634 
1635 /*
1636  * Check that all the files in check_table are present in the
1637  * target root. Warn if not found.
1638  */
1639 int
1640 sanity_check(void)
1641 {
1642 	int target_ok = 1;
1643 	struct check_table *p;
1644 
1645 	for (p = checks; p->path; p++) {
1646 		target_ok = target_ok && check_for(p->mode, p->path);
1647 	}
1648 	if (target_ok)
1649 		return 0;
1650 
1651 	/* Uh, oh. Something's missing. */
1652 	hit_enter_to_continue(MSG_badroot, NULL);
1653 	return 1;
1654 }
1655 
1656 /*
1657  * Some globals to pass things back from callbacks
1658  */
1659 static char zoneinfo_dir[STRSIZE];
1660 static int zonerootlen;
1661 static char *tz_selected;	/* timezonename (relative to share/zoneinfo */
1662 const char *tz_default;		/* UTC, or whatever /etc/localtime points to */
1663 static char tz_env[STRSIZE];
1664 static int save_cursel, save_topline;
1665 static int time_menu = -1;
1666 
1667 static void
1668 update_time_display(void)
1669 {
1670 	time_t t;
1671 	struct tm *tm;
1672 	char cur_time[STRSIZE], *p;
1673 
1674 	t = time(NULL);
1675 	tm = localtime(&t);
1676 	strlcpy(cur_time, safectime(&t), sizeof cur_time);
1677 	p = strchr(cur_time, '\n');
1678 	if (p != NULL)
1679 		*p = 0;
1680 
1681 	msg_clear();
1682 	msg_fmt_table_add(MSG_choose_timezone, "%s%s%s%s",
1683 	    tz_default, tz_selected, cur_time, tm ? tm->tm_zone : "?");
1684 }
1685 
1686 /*
1687  * Callback from timezone menu
1688  */
1689 static int
1690 set_tz_select(menudesc *m, void *arg)
1691 {
1692 	char *new;
1693 
1694 	if (m && strcmp(tz_selected, m->opts[m->cursel].opt_name) != 0) {
1695 		/* Change the displayed timezone */
1696 		new = strdup(m->opts[m->cursel].opt_name);
1697 		if (new == NULL)
1698 			return 0;
1699 		free(tz_selected);
1700 		tz_selected = new;
1701 		snprintf(tz_env, sizeof tz_env, "%.*s%s",
1702 			 zonerootlen, zoneinfo_dir, tz_selected);
1703 		setenv("TZ", tz_env, 1);
1704 	}
1705 	if (m)
1706 		/* Warp curser to 'Exit' line on menu */
1707 		m->cursel = -1;
1708 
1709 	update_time_display();
1710 	if (time_menu >= 1) {
1711 		WINDOW *w = get_menudesc(time_menu)->mw;
1712 		if (w != NULL) {
1713 			touchwin(w);
1714 			wrefresh(w);
1715 		}
1716 	}
1717 	return 0;
1718 }
1719 
1720 static int
1721 set_tz_back(menudesc *m, void *arg)
1722 {
1723 
1724 	zoneinfo_dir[zonerootlen] = 0;
1725 	m->cursel = save_cursel;
1726 	m->topline = save_topline;
1727 	return 0;
1728 }
1729 
1730 static int
1731 set_tz_dir(menudesc *m, void *arg)
1732 {
1733 
1734 	strlcpy(zoneinfo_dir + zonerootlen, m->opts[m->cursel].opt_name,
1735 		sizeof zoneinfo_dir - zonerootlen);
1736 	save_cursel = m->cursel;
1737 	save_topline = m->topline;
1738 	m->cursel = 0;
1739 	m->topline = 0;
1740 	return 0;
1741 }
1742 
1743 /*
1744  * Alarm-handler to update example-display
1745  */
1746 static void
1747 /*ARGSUSED*/
1748 timezone_sig(int sig)
1749 {
1750 
1751 	set_tz_select(NULL, NULL);
1752 	alarm(60);
1753 }
1754 
1755 static int
1756 tz_sort(const void *a, const void *b)
1757 {
1758 	return strcmp(((const menu_ent *)a)->opt_name, ((const menu_ent *)b)->opt_name);
1759 }
1760 
1761 static void
1762 tzm_set_names(menudesc *m, void *arg)
1763 {
1764 	DIR *dir;
1765 	struct dirent *dp;
1766 	static int nfiles;
1767 	static int maxfiles = 32;
1768 	static menu_ent *tz_menu;
1769 	static char **tz_names;
1770 	void *p;
1771 	int maxfname;
1772 	char *fp;
1773 	struct stat sb;
1774 
1775 	if (tz_menu == NULL)
1776 		tz_menu = calloc(maxfiles, sizeof *tz_menu);
1777 	if (tz_names == NULL)
1778 		tz_names = malloc(maxfiles * sizeof *tz_names);
1779 	if (tz_menu == NULL || tz_names == NULL)
1780 		return;	/* error - skip timezone setting */
1781 	while (nfiles > 0)
1782 		free(tz_names[--nfiles]);
1783 
1784 	dir = opendir(zoneinfo_dir);
1785 	fp = strchr(zoneinfo_dir, 0);
1786 	if (fp != zoneinfo_dir + zonerootlen) {
1787 		tz_names[0] = 0;
1788 		tz_menu[0].opt_name = msg_string(MSG_tz_back);
1789 		tz_menu[0].opt_action = set_tz_back;
1790 		nfiles = 1;
1791 	}
1792 	maxfname = zoneinfo_dir + sizeof zoneinfo_dir - fp - 1;
1793 	if (dir != NULL) {
1794 		while ((dp = readdir(dir)) != NULL) {
1795 			if (dp->d_namlen > maxfname || dp->d_name[0] == '.')
1796 				continue;
1797 			strlcpy(fp, dp->d_name, maxfname);
1798 			if (stat(zoneinfo_dir, &sb) == -1)
1799 				continue;
1800 			if (nfiles >= maxfiles) {
1801 				p = realloc(tz_menu,
1802 				    2 * maxfiles * sizeof *tz_menu);
1803 				if (p == NULL)
1804 					break;
1805 				tz_menu = p;
1806 				memset(tz_menu + maxfiles, 0,
1807 				    maxfiles * sizeof *tz_menu);
1808 				p = realloc(tz_names,
1809 				    2 * maxfiles * sizeof *tz_names);
1810 				if (p == NULL)
1811 					break;
1812 				tz_names = p;
1813 				memset(tz_names + maxfiles, 0,
1814 				    maxfiles * sizeof *tz_names);
1815 				maxfiles *= 2;
1816 			}
1817 			if (S_ISREG(sb.st_mode))
1818 				tz_menu[nfiles].opt_action = set_tz_select;
1819 			else if (S_ISDIR(sb.st_mode)) {
1820 				tz_menu[nfiles].opt_action = set_tz_dir;
1821 				strlcat(fp, "/",
1822 				    sizeof(zoneinfo_dir) - (fp - zoneinfo_dir));
1823 			} else
1824 				continue;
1825 			tz_names[nfiles] = strdup(zoneinfo_dir + zonerootlen);
1826 			tz_menu[nfiles].opt_name = tz_names[nfiles];
1827 			nfiles++;
1828 		}
1829 		closedir(dir);
1830 	}
1831 	*fp = 0;
1832 
1833 	m->opts = tz_menu;
1834 	m->numopts = nfiles;
1835 	qsort(tz_menu, nfiles, sizeof *tz_menu, tz_sort);
1836 }
1837 
1838 void
1839 get_tz_default(void)
1840 {
1841 	char localtime_link[STRSIZE];
1842 	static char localtime_target[STRSIZE];
1843 	int rc;
1844 
1845 	strlcpy(localtime_link, target_expand("/etc/localtime"),
1846 	    sizeof localtime_link);
1847 
1848 	/* Add sanity check that /mnt/usr/share/zoneinfo contains
1849 	 * something useful
1850 	 */
1851 
1852 	rc = readlink(localtime_link, localtime_target,
1853 		      sizeof(localtime_target) - 1);
1854 	if (rc < 0) {
1855 		/* error, default to UTC */
1856 		tz_default = "UTC";
1857 	} else {
1858 		localtime_target[rc] = '\0';
1859 		tz_default = strchr(strstr(localtime_target, "zoneinfo"), '/') + 1;
1860 	}
1861 }
1862 
1863 /*
1864  * Choose from the files in usr/share/zoneinfo and set etc/localtime
1865  */
1866 int
1867 set_timezone(void)
1868 {
1869 	char localtime_link[STRSIZE];
1870 	char localtime_target[STRSIZE];
1871 	int menu_no;
1872 
1873 	strlcpy(zoneinfo_dir, target_expand("/usr/share/zoneinfo/"),
1874 	    sizeof zoneinfo_dir - 1);
1875 	zonerootlen = strlen(zoneinfo_dir);
1876 
1877 	get_tz_default();
1878 
1879 	tz_selected = strdup(tz_default);
1880 	snprintf(tz_env, sizeof(tz_env), "%s%s", zoneinfo_dir, tz_selected);
1881 	setenv("TZ", tz_env, 1);
1882 	update_time_display();
1883 
1884 	signal(SIGALRM, timezone_sig);
1885 	alarm(60);
1886 
1887 	menu_no = new_menu(NULL, NULL, 14, 23, 9,
1888 			   12, 32, MC_ALWAYS_SCROLL | MC_NOSHORTCUT,
1889 			   tzm_set_names, NULL, NULL,
1890 			   "\nPlease consult the install documents.",
1891 			   MSG_exit_menu_generic);
1892 	if (menu_no >= 0) {
1893 		time_menu = menu_no;
1894 		process_menu(menu_no, NULL);
1895 		time_menu = -1;
1896 
1897 		free_menu(menu_no);
1898 	}
1899 
1900 	alarm(0);
1901 	signal(SIGALRM, SIG_IGN);
1902 
1903 	if (menu_no >= 0) {
1904 		snprintf(localtime_target, sizeof(localtime_target),
1905 			 "/usr/share/zoneinfo/%s", tz_selected);
1906 		strlcpy(localtime_link, target_expand("/etc/localtime"),
1907 		    sizeof localtime_link);
1908 		unlink(localtime_link);
1909 		symlink(localtime_target, localtime_link);
1910 	}
1911 
1912 	return 1;
1913 }
1914 
1915 void
1916 scripting_vfprintf(FILE *f, const char *fmt, va_list ap)
1917 {
1918 	va_list ap2;
1919 
1920 	va_copy(ap2, ap);
1921 	if (f)
1922 		(void)vfprintf(f, fmt, ap);
1923 	if (script)
1924 		(void)vfprintf(script, fmt, ap2);
1925 }
1926 
1927 void
1928 scripting_fprintf(FILE *f, const char *fmt, ...)
1929 {
1930 	va_list ap;
1931 
1932 	va_start(ap, fmt);
1933 	scripting_vfprintf(f, fmt, ap);
1934 	va_end(ap);
1935 }
1936 
1937 void
1938 add_rc_conf(const char *fmt, ...)
1939 {
1940 	FILE *f;
1941 	va_list ap;
1942 
1943 	va_start(ap, fmt);
1944 	f = target_fopen("/etc/rc.conf", "a");
1945 	if (f != 0) {
1946 		scripting_fprintf(NULL, "cat <<EOF >>%s/etc/rc.conf\n",
1947 		    target_prefix());
1948 		scripting_vfprintf(f, fmt, ap);
1949 		fclose(f);
1950 		scripting_fprintf(NULL, "EOF\n");
1951 	}
1952 	va_end(ap);
1953 }
1954 
1955 int
1956 del_rc_conf(const char *value)
1957 {
1958 	FILE *fp, *nfp;
1959 	char buf[4096]; /* Ridiculously high, but should be enough in any way */
1960 	char *rcconf, *tempname = NULL, *bakname = NULL;
1961 	char *cp;
1962 	int done = 0;
1963 	int fd;
1964 	int retval = 0;
1965 
1966 	/* The paths might seem strange, but using /tmp would require copy instead
1967 	 * of rename operations. */
1968 	if (asprintf(&rcconf, "%s", target_expand("/etc/rc.conf")) < 0
1969 			|| asprintf(&tempname, "%s", target_expand("/etc/rc.conf.tmp.XXXXXX")) < 0
1970 			|| asprintf(&bakname, "%s", target_expand("/etc/rc.conf.bak.XXXXXX")) < 0) {
1971 		if (rcconf)
1972 			free(rcconf);
1973 		if (tempname)
1974 			free(tempname);
1975 		msg_fmt_display(MSG_rcconf_delete_failed, "%s", value);
1976 		hit_enter_to_continue(NULL, NULL);
1977 		return -1;
1978 	}
1979 
1980 	if ((fd = mkstemp(bakname)) < 0) {
1981 		msg_fmt_display(MSG_rcconf_delete_failed, "%s", value);
1982 		hit_enter_to_continue(NULL, NULL);
1983 		return -1;
1984 	}
1985 	close(fd);
1986 
1987 	if (!(fp = fopen(rcconf, "r+")) || (fd = mkstemp(tempname)) < 0) {
1988 		if (fp)
1989 			fclose(fp);
1990 		msg_fmt_display(MSG_rcconf_delete_failed, "%s", value);
1991 		hit_enter_to_continue(NULL, NULL);
1992 		return -1;
1993 	}
1994 
1995 	nfp = fdopen(fd, "w");
1996 	if (!nfp) {
1997 		fclose(fp);
1998 		close(fd);
1999 		msg_fmt_display(MSG_rcconf_delete_failed, "%s", value);
2000 		hit_enter_to_continue(NULL, NULL);
2001 		return -1;
2002 	}
2003 
2004 	while (fgets(buf, sizeof buf, fp) != NULL) {
2005 
2006 		cp = buf + strspn(buf, " \t"); /* Skip initial spaces */
2007 		if (strncmp(cp, value, strlen(value)) == 0) {
2008 			cp += strlen(value);
2009 			if (*cp != '=')
2010 				scripting_fprintf(nfp, "%s", buf);
2011 			else
2012 				done = 1;
2013 		} else {
2014 			scripting_fprintf(nfp, "%s", buf);
2015 		}
2016 	}
2017 	fclose(fp);
2018 	fclose(nfp);
2019 
2020 	if (done) {
2021 		if (rename(rcconf, bakname)) {
2022 			msg_display(MSG_rcconf_backup_failed);
2023 			if (!ask_noyes(NULL)) {
2024 				retval = -1;
2025 				goto done;
2026 			}
2027 		}
2028 
2029 		if (rename(tempname, rcconf)) {
2030 			if (rename(bakname, rcconf)) {
2031 				hit_enter_to_continue(MSG_rcconf_restore_failed,
2032 				    NULL);
2033 			} else {
2034 				hit_enter_to_continue(MSG_rcconf_delete_failed,
2035 				    NULL);
2036 			}
2037 		} else {
2038 			(void)unlink(bakname);
2039 		}
2040 	}
2041 
2042 done:
2043 	(void)unlink(tempname);
2044 	free(rcconf);
2045 	free(tempname);
2046 	free(bakname);
2047 	return retval;
2048 }
2049 
2050 void
2051 add_sysctl_conf(const char *fmt, ...)
2052 {
2053 	FILE *f;
2054 	va_list ap;
2055 
2056 	va_start(ap, fmt);
2057 	f = target_fopen("/etc/sysctl.conf", "a");
2058 	if (f != 0) {
2059 		scripting_fprintf(NULL, "cat <<EOF >>%s/etc/sysctl.conf\n",
2060 		    target_prefix());
2061 		scripting_vfprintf(f, fmt, ap);
2062 		fclose(f);
2063 		scripting_fprintf(NULL, "EOF\n");
2064 	}
2065 	va_end(ap);
2066 }
2067 
2068 void
2069 enable_rc_conf(void)
2070 {
2071 
2072 	replace("/etc/rc.conf", "s/^rc_configured=NO/rc_configured=YES/");
2073 }
2074 
2075 int
2076 check_lfs_progs(void)
2077 {
2078 
2079 #ifndef NO_LFS
2080 	return binary_available("fsck_lfs") && binary_available("mount_lfs")
2081 	    && binary_available("newfs_lfs");
2082 #else
2083 	return 0;
2084 #endif
2085 }
2086 
2087 int
2088 set_is_source(const char *set_name) {
2089 	int len = strlen(set_name);
2090 	return len >= 3 && memcmp(set_name + len - 3, "src", 3) == 0;
2091 }
2092 
2093 const char *
2094 set_dir_for_set(const char *set_name) {
2095 	if (strcmp(set_name, "pkgsrc") == 0)
2096 		return pkgsrc_dir;
2097 	return set_is_source(set_name) ? set_dir_src : set_dir_bin;
2098 }
2099 
2100 const char *
2101 ext_dir_for_set(const char *set_name) {
2102 	if (strcmp(set_name, "pkgsrc") == 0)
2103 		return ext_dir_pkgsrc;
2104 	return set_is_source(set_name) ? ext_dir_src : ext_dir_bin;
2105 }
2106 
2107 void
2108 do_coloring(unsigned int fg, unsigned int bg) {
2109 	if (bg > COLOR_WHITE)
2110 		bg = COLOR_BLUE;
2111 	if (fg > COLOR_WHITE)
2112 		fg = COLOR_WHITE;
2113 	if (fg != bg && has_colors()) {
2114 		init_pair(1, fg, bg);
2115 		wbkgd(stdscr, COLOR_PAIR(1));
2116 		wbkgd(mainwin, COLOR_PAIR(1));
2117 		wattrset(stdscr, COLOR_PAIR(1));
2118 		wattrset(mainwin, COLOR_PAIR(1));
2119 	}
2120 	/* redraw screen */
2121 	touchwin(stdscr);
2122 	touchwin(mainwin);
2123 	wrefresh(stdscr);
2124 	wrefresh(mainwin);
2125 	return;
2126 }
2127 
2128 int
2129 set_menu_select(menudesc *m, void *arg)
2130 {
2131 	*(int *)arg = m->cursel;
2132 	return 1;
2133 }
2134 
2135 /*
2136  * check wether a binary is available somewhere in PATH,
2137  * return 1 if found, 0 if not.
2138  */
2139 static int
2140 binary_available(const char *prog)
2141 {
2142         char *p, tmp[MAXPATHLEN], *path = getenv("PATH"), *opath;
2143 
2144         if (path == NULL)
2145                 return access(prog, X_OK) == 0;
2146         path = strdup(path);
2147         if (path == NULL)
2148                 return 0;
2149 
2150 	opath = path;
2151 
2152         while ((p = strsep(&path, ":")) != NULL) {
2153                 if (strlcpy(tmp, p, MAXPATHLEN) >= MAXPATHLEN)
2154                         continue;
2155                 if (strlcat(tmp, "/", MAXPATHLEN) >= MAXPATHLEN)
2156                         continue;
2157                 if (strlcat(tmp, prog, MAXPATHLEN) >= MAXPATHLEN)
2158                         continue;
2159                 if (access(tmp, X_OK) == 0) {
2160                         free(opath);
2161                         return 1;
2162                 }
2163         }
2164         free(opath);
2165         return 0;
2166 }
2167 
2168 const char *
2169 safectime(time_t *t)
2170 {
2171 	const char *s = ctime(t);
2172 	if (s != NULL)
2173 		return s;
2174 
2175 	// Debugging.
2176 	fprintf(stderr, "Can't convert to localtime 0x%jx (%s)\n",
2177 	    (intmax_t)*t, strerror(errno));
2178 	      /*123456789012345678901234*/
2179 	return "preposterous clock time\n";
2180 }
2181 
2182 int
2183 ask_yesno(const char* msgtxt)
2184 {
2185 	arg_rv p;
2186 
2187 	p.arg = __UNCONST(msgtxt);
2188 	p.rv = -1;
2189 
2190 	process_menu(MENU_yesno, &p);
2191 	return p.rv;
2192 }
2193 
2194 int
2195 ask_noyes(const char *msgtxt)
2196 {
2197 	arg_rv p;
2198 
2199 	p.arg = __UNCONST(msgtxt);
2200 	p.rv = -1;
2201 
2202 	process_menu(MENU_noyes, &p);
2203 	return p.rv;
2204 }
2205 
2206 int
2207 ask_reedit(const struct disk_partitions *parts)
2208 {
2209 	const char *args[2];
2210 	arg_rep_int arg;
2211 
2212 	args[0] = msg_string(parts->pscheme->name);
2213 	args[1] = msg_string(parts->pscheme->short_name);
2214 	arg.args.argv = args;
2215 	arg.args.argc = 2;
2216 	arg.rv = 0;
2217 	process_menu(MENU_reedit, &arg);
2218 
2219 	return arg.rv;
2220 }
2221 
2222 bool
2223 use_tgz_for_set(const char *set_name)
2224 {
2225 	const struct distinfo *dist;
2226 
2227 	for (dist = dist_list; dist->set != SET_LAST; dist++) {
2228 		if (dist->name == NULL)
2229 			continue;
2230 		if (strcmp(set_name, dist->name) == 0)
2231 			return dist->force_tgz;
2232 	}
2233 
2234 	return true;
2235 }
2236 
2237 /* Return the postfix used for a given set */
2238 const char *
2239 set_postfix(const char *set_name)
2240 {
2241 	return use_tgz_for_set(set_name) ? dist_tgz_postfix : dist_postfix;
2242 }
2243 
2244 /*
2245  * Replace positional arguments (encoded as $0 .. $N) in the string
2246  * passed by the contents of the passed argument array.
2247  * Caller must free() the result string.
2248  */
2249 char*
2250 str_arg_subst(const char *src, size_t argc, const char **argv)
2251 {
2252 	const char *p, *last;
2253 	char *out, *t;
2254 	size_t len;
2255 
2256 	len = strlen(src);
2257 	for (p = strchr(src, '$'); p; p = strchr(p+1, '$')) {
2258 		char *endp = NULL;
2259 		size_t n;
2260 		int e;
2261 
2262 		/* $ followed by a correct numeric position? */
2263 		n = strtou(p+1, &endp, 10, 0, INT_MAX, &e);
2264 		if ((e == 0 || e == ENOTSUP) && n < argc) {
2265 			len += strlen(argv[n]);
2266 			len -= endp-p;
2267 			p = endp-1;
2268 		}
2269 	}
2270 
2271 	out = malloc(len+1);
2272 	if (out == NULL)
2273 		return NULL;
2274 
2275 	t = out;
2276 	for (last = src, p = strchr(src, '$'); p; p = strchr(p+1, '$')) {
2277 		char *endp = NULL;
2278 		size_t n;
2279 		int e;
2280 
2281 		/* $ followed by a correct numeric position? */
2282 		n = strtou(p+1, &endp, 10, 0, INT_MAX, &e);
2283 		if ((e == 0 || e == ENOTSUP) && n < argc) {
2284 			size_t l = p-last;
2285 			memcpy(t, last, l);
2286 			t += l;
2287 			strcpy(t, argv[n]);
2288 			t += strlen(argv[n]);
2289 			last = endp;
2290 		}
2291 	}
2292 	if (*last) {
2293 		strcpy(t, last);
2294 		t += strlen(last);
2295 	} else {
2296 		*t = 0;
2297 	}
2298 	assert((size_t)(t-out) == len);
2299 
2300 	return out;
2301 }
2302 
2303 /*
2304  * Does this string have any positional args that need expanding?
2305  */
2306 bool
2307 needs_expanding(const char *src, size_t argc)
2308 {
2309 	const char *p;
2310 
2311 	for (p = strchr(src, '$'); p; p = strchr(p+1, '$')) {
2312 		char *endp = NULL;
2313 		size_t n;
2314 		int e;
2315 
2316 		/* $ followed by a correct numeric position? */
2317 		n = strtou(p+1, &endp, 10, 0, INT_MAX, &e);
2318 		if ((e == 0 || e == ENOTSUP) && n < argc)
2319 			return true;
2320 	}
2321 	return false;
2322 }
2323 
2324 /*
2325  * Replace positional arguments (encoded as $0 .. $N) in the
2326  * message by the strings passed as ... and call outfunc
2327  * with the result.
2328  */
2329 static void
2330 msg_display_subst_internal(void (*outfunc)(msg),
2331     const char *master, size_t argc, va_list ap)
2332 {
2333 	const char **args, **arg;
2334 	char *out;
2335 
2336 	args = calloc(argc, sizeof(*args));
2337 	if (args == NULL)
2338 		return;
2339 
2340 	arg = args;
2341 	for (size_t i = 0; i < argc; i++)
2342 		*arg++ = va_arg(ap, const char*);
2343 
2344 	out = str_arg_subst(msg_string(master), argc, args);
2345 	if (out != NULL) {
2346 		outfunc(out);
2347 		free(out);
2348 	}
2349 	free(args);
2350 }
2351 
2352 /*
2353  * Replace positional arguments (encoded as $0 .. $N) in the
2354  * message by the strings passed as ...
2355  */
2356 void
2357 msg_display_subst(const char *master, size_t argc, ...)
2358 {
2359 	va_list ap;
2360 
2361 	va_start(ap, argc);
2362 	msg_display_subst_internal(msg_display, master, argc, ap);
2363 	va_end(ap);
2364 }
2365 
2366 /*
2367  * Same as above, but add to message instead of starting a new one
2368  */
2369 void
2370 msg_display_add_subst(const char *master, size_t argc, ...)
2371 {
2372 	va_list ap;
2373 
2374 	va_start(ap, argc);
2375 	msg_display_subst_internal(msg_display_add, master, argc, ap);
2376 	va_end(ap);
2377 }
2378 
2379 /* initialize have_* variables */
2380 void
2381 check_available_binaries()
2382 {
2383 	static int did_test = false;
2384 
2385 	if (did_test) return;
2386 	did_test = 1;
2387 
2388 	have_raid = binary_available("raidctl");
2389 	have_vnd = binary_available("vndconfig");
2390 	have_cgd = binary_available("cgdconfig");
2391 	have_lvm = binary_available("lvm");
2392 	have_gpt = binary_available("gpt");
2393 	have_dk = binary_available("dkctl");
2394 }
2395 
2396 /*
2397  * Wait for enter and immediately clear the screen after user response
2398  * (in case some longer action follows, so the user has instant feedback)
2399  */
2400 void
2401 hit_enter_to_continue(const char *prompt, const char *title)
2402 {
2403 	if (prompt != NULL)
2404 		msg_display(prompt);
2405         process_menu(MENU_ok, __UNCONST(title));
2406 	msg_clear();
2407 	wrefresh(mainwin);
2408 }
2409 
2410 /*
2411  * On auto pilot:
2412  * convert an existing set of partitions ot a list of part_usage_info
2413  * so that we "want" exactly what is there already.
2414  */
2415 static bool
2416 usage_info_list_from_parts(struct part_usage_info **list, size_t *count,
2417     struct disk_partitions *parts)
2418 {
2419 	struct disk_part_info info;
2420 	part_id pno;
2421 	size_t no, num;
2422 
2423 	num = 0;
2424 	for (pno = 0; pno < parts->num_part; pno++) {
2425 		if (!parts->pscheme->get_part_info(parts, pno, &info))
2426 			continue;
2427 		num++;
2428 	}
2429 
2430 	*list = calloc(num, sizeof(**list));
2431 	if (*list == NULL)
2432 		return false;
2433 
2434 	*count = num;
2435 	for (no = pno = 0; pno < parts->num_part && no < num; pno++) {
2436 		if (!parts->pscheme->get_part_info(parts, pno, &info))
2437 			continue;
2438 		(*list)[no].size = info.size;
2439 		if (info.last_mounted != NULL && *info.last_mounted != 0) {
2440 			strlcpy((*list)[no].mount, info.last_mounted,
2441 			    sizeof((*list)[no].mount));
2442 			(*list)[no].instflags |= PUIINST_MOUNT;
2443 		}
2444 		(*list)[no].parts = parts;
2445 		(*list)[no].cur_part_id = pno;
2446 		(*list)[no].cur_start = info.start;
2447 		(*list)[no].cur_flags = info.flags;
2448 		(*list)[no].type = info.nat_type->generic_ptype;
2449 		if ((*list)[no].type == PT_swap) {
2450 			(*list)[no].fs_type = FS_SWAP;
2451 			(*list)[no].fs_version = 0;
2452 		} else {
2453 			(*list)[no].fs_type = info.fs_type;
2454 			(*list)[no].fs_version = info.fs_sub_type;
2455 		}
2456 		(*list)[no].fs_opt1 = info.fs_opt1;
2457 		(*list)[no].fs_opt2 = info.fs_opt2;
2458 		(*list)[no].fs_opt3 = info.fs_opt3;
2459 		no++;
2460 	}
2461 	return true;
2462 }
2463 
2464 bool
2465 usage_set_from_parts(struct partition_usage_set *wanted,
2466     struct disk_partitions *parts)
2467 {
2468 	memset(wanted, 0, sizeof(*wanted));
2469 	wanted->parts = parts;
2470 
2471 	return usage_info_list_from_parts(&wanted->infos, &wanted->num, parts);
2472 }
2473 
2474 struct disk_partitions *
2475 get_inner_parts(struct disk_partitions *parts)
2476 {
2477 	daddr_t start, size;
2478 	part_id pno;
2479 	struct disk_part_info info;
2480 
2481 	if (parts->pscheme->secondary_scheme == NULL)
2482 		return NULL;
2483 
2484 	start = -1;
2485 	size = -1;
2486 	if (parts->pscheme->guess_install_target == NULL ||
2487 	    !parts->pscheme->guess_install_target(parts, &start, &size)) {
2488 		for (pno = 0; pno < parts->num_part; pno++) {
2489 			if (!parts->pscheme->get_part_info(parts, pno, &info))
2490 				continue;
2491 			if (!(info.flags & PTI_SEC_CONTAINER))
2492 				continue;
2493 			start = info.start;
2494 			size = info.size;
2495 		}
2496 	}
2497 
2498 	if (size > 0)
2499 		return parts->pscheme->secondary_partitions(parts, start,
2500 		    false);
2501 
2502 	return NULL;
2503 }
2504 
2505 bool
2506 install_desc_from_parts(struct install_partition_desc *install,
2507     struct disk_partitions *parts)
2508 {
2509 	struct disk_partitions *inner_parts;
2510 
2511 	memset(install, 0, sizeof(*install));
2512 	inner_parts = get_inner_parts(parts);
2513 	if (inner_parts != NULL)
2514 		parts = inner_parts;
2515 
2516 	return usage_info_list_from_parts(&install->infos, &install->num,
2517 	    parts);
2518 }
2519 
2520 void
2521 free_usage_set(struct partition_usage_set *wanted)
2522 {
2523 	/* XXX - free parts? free clone src? */
2524 	free(wanted->write_back);
2525 	free(wanted->menu_opts);
2526 	free(wanted->infos);
2527 }
2528 
2529 void
2530 free_install_desc(struct install_partition_desc *install)
2531 {
2532 #ifndef NO_CLONES
2533 	size_t i, j;
2534 
2535 	for (i = 0; i < install->num; i++) {
2536 		struct selected_partitions *src = install->infos[i].clone_src;
2537 		if (!(install->infos[i].flags & PUIFLG_CLONE_PARTS) ||
2538 		    src == NULL)
2539 			continue;
2540 		free_selected_partitions(src);
2541 		for (j = i+1; j < install->num; j++)
2542 			if (install->infos[j].clone_src == src)
2543 				install->infos[j].clone_src = NULL;
2544 	}
2545 #endif
2546 	free(install->write_back);
2547 	free(install->infos);
2548 }
2549 
2550 #ifdef MD_MAY_SWAP_TO
2551 bool
2552 may_swap_if_not_sdmmc(const char *disk)
2553 {
2554 	int fd, res;
2555 	prop_dictionary_t command_dict, args_dict, results_dict, data_dict;
2556 	prop_string_t string;
2557 	prop_number_t number;
2558 	const char *parent = "";
2559 
2560 	fd = open(DRVCTLDEV, O_RDONLY, 0);
2561 	if (fd == -1)
2562 		return true;
2563 
2564 	command_dict = prop_dictionary_create();
2565 	args_dict = prop_dictionary_create();
2566 
2567 	string = prop_string_create_nocopy("get-properties");
2568 	prop_dictionary_set(command_dict, "drvctl-command", string);
2569 	prop_object_release(string);
2570 
2571 	string = prop_string_create_copy(disk);
2572 	prop_dictionary_set(args_dict, "device-name", string);
2573 	prop_object_release(string);
2574 
2575 	prop_dictionary_set(command_dict, "drvctl-arguments",
2576 	    args_dict);
2577 	prop_object_release(args_dict);
2578 
2579 	res = prop_dictionary_sendrecv_ioctl(command_dict, fd,
2580 	    DRVCTLCOMMAND, &results_dict);
2581 	prop_object_release(command_dict);
2582 	close(fd);
2583 	if (res)
2584 		return true;
2585 
2586 	number = prop_dictionary_get(results_dict, "drvctl-error");
2587 	if (prop_number_signed_value(number) == 0) {
2588 		data_dict = prop_dictionary_get(results_dict,
2589 		    "drvctl-result-data");
2590 		if (data_dict != NULL) {
2591 			string = prop_dictionary_get(data_dict,
2592 			    "device-parent");
2593 			if (string != NULL)
2594 				parent = prop_string_value(string);
2595 		}
2596 	}
2597 
2598 	prop_object_release(results_dict);
2599 
2600 	if (parent == NULL)
2601 		return true;
2602 
2603 	return strncmp(parent, "sdmmc", 5) != 0;
2604 }
2605 #endif
2606