xref: /netbsd-src/usr.sbin/sysinst/util.c (revision 946379e7b37692fc43f68eb0d1c10daa0a7f3b6c)
1 /*	$NetBSD: util.c,v 1.7 2015/05/11 13:07:57 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 <stdio.h>
38 #include <stdarg.h>
39 #include <string.h>
40 #include <unistd.h>
41 #include <sys/mount.h>
42 #include <sys/disklabel.h>
43 #include <sys/dkio.h>
44 #include <sys/ioctl.h>
45 #include <sys/types.h>
46 #include <sys/param.h>
47 #include <sys/sysctl.h>
48 #include <sys/stat.h>
49 #include <sys/statvfs.h>
50 #include <isofs/cd9660/iso.h>
51 #include <curses.h>
52 #include <err.h>
53 #include <errno.h>
54 #include <dirent.h>
55 #include <util.h>
56 #include "defs.h"
57 #include "md.h"
58 #include "msg_defs.h"
59 #include "menu_defs.h"
60 
61 #ifndef MD_SETS_SELECTED
62 #define MD_SETS_SELECTED SET_KERNEL_1, SET_SYSTEM, SET_X11, SET_MD
63 #endif
64 #ifndef MD_SETS_SELECTED_MINIMAL
65 #define MD_SETS_SELECTED_MINIMAL SET_KERNEL_1, SET_CORE
66 #endif
67 #ifndef MD_SETS_SELECTED_NOX
68 #define MD_SETS_SELECTED_NOX SET_KERNEL_1, SET_SYSTEM, SET_MD
69 #endif
70 #ifndef MD_SETS_VALID
71 #define MD_SETS_VALID SET_KERNEL, SET_SYSTEM, SET_X11, SET_MD, SET_SOURCE, SET_DEBUGGING
72 #endif
73 
74 #define MAX_CD_DEVS	256	/* how many cd drives do we expect to attach */
75 #define ISO_BLKSIZE	ISO_DEFAULT_BLOCK_SIZE
76 
77 static const char *msg_yes, *msg_no, *msg_all, *msg_some, *msg_none;
78 static const char *msg_cur_distsets_row;
79 static int select_menu_width;
80 
81 static uint8_t set_status[SET_GROUP_END];
82 #define SET_VALID	0x01
83 #define SET_SELECTED	0x02
84 #define SET_SKIPPED	0x04
85 #define SET_INSTALLED	0x08
86 
87 struct  tarstats {
88 	int nselected;
89 	int nfound;
90 	int nnotfound;
91 	int nerror;
92 	int nsuccess;
93 	int nskipped;
94 } tarstats;
95 
96 distinfo dist_list[] = {
97 #ifdef SET_KERNEL_1_NAME
98 	{SET_KERNEL_1_NAME,	SET_KERNEL_1,		MSG_set_kernel_1, NULL},
99 #endif
100 #ifdef SET_KERNEL_2_NAME
101 	{SET_KERNEL_2_NAME,	SET_KERNEL_2,		MSG_set_kernel_2, NULL},
102 #endif
103 #ifdef SET_KERNEL_3_NAME
104 	{SET_KERNEL_3_NAME,	SET_KERNEL_3,		MSG_set_kernel_3, NULL},
105 #endif
106 #ifdef SET_KERNEL_4_NAME
107 	{SET_KERNEL_4_NAME,	SET_KERNEL_4,		MSG_set_kernel_4, NULL},
108 #endif
109 #ifdef SET_KERNEL_5_NAME
110 	{SET_KERNEL_5_NAME,	SET_KERNEL_5,		MSG_set_kernel_5, NULL},
111 #endif
112 #ifdef SET_KERNEL_6_NAME
113 	{SET_KERNEL_6_NAME,	SET_KERNEL_6,		MSG_set_kernel_6, NULL},
114 #endif
115 #ifdef SET_KERNEL_7_NAME
116 	{SET_KERNEL_7_NAME,	SET_KERNEL_7,		MSG_set_kernel_7, NULL},
117 #endif
118 #ifdef SET_KERNEL_8_NAME
119 	{SET_KERNEL_8_NAME,	SET_KERNEL_8,		MSG_set_kernel_8, NULL},
120 #endif
121 #ifdef SET_KERNEL_9_NAME
122 	{SET_KERNEL_9_NAME,	SET_KERNEL_9,		MSG_set_kernel_9, NULL},
123 #endif
124 
125 	{"modules",		SET_MODULES,		MSG_set_modules, NULL},
126 	{"base",		SET_BASE,		MSG_set_base, NULL},
127 	{"etc",			SET_ETC,		MSG_set_system, NULL},
128 	{"comp",		SET_COMPILER,		MSG_set_compiler, NULL},
129 	{"games",		SET_GAMES,		MSG_set_games, NULL},
130 	{"man",			SET_MAN_PAGES,		MSG_set_man_pages, NULL},
131 	{"misc",		SET_MISC,		MSG_set_misc, NULL},
132 	{"tests",		SET_TESTS,		MSG_set_tests, NULL},
133 	{"text",		SET_TEXT_TOOLS,		MSG_set_text_tools, NULL},
134 
135 	{NULL,			SET_GROUP,		MSG_set_X11, NULL},
136 	{"xbase",		SET_X11_BASE,		MSG_set_X11_base, NULL},
137 	{"xcomp",		SET_X11_PROG,		MSG_set_X11_prog, NULL},
138 	{"xetc",		SET_X11_ETC,		MSG_set_X11_etc, NULL},
139 	{"xfont",		SET_X11_FONTS,		MSG_set_X11_fonts, NULL},
140 	{"xserver",		SET_X11_SERVERS,	MSG_set_X11_servers, NULL},
141 	{NULL,			SET_GROUP_END,		NULL, NULL},
142 
143 #ifdef SET_MD_1_NAME
144 	{SET_MD_1_NAME,		SET_MD_1,		MSG_set_md_1, NULL},
145 #endif
146 #ifdef SET_MD_2_NAME
147 	{SET_MD_2_NAME,		SET_MD_2,		MSG_set_md_2, NULL},
148 #endif
149 #ifdef SET_MD_3_NAME
150 	{SET_MD_3_NAME,		SET_MD_3,		MSG_set_md_3, NULL},
151 #endif
152 #ifdef SET_MD_4_NAME
153 	{SET_MD_4_NAME,		SET_MD_4,		MSG_set_md_4, NULL},
154 #endif
155 
156 	{NULL,			SET_GROUP,		MSG_set_source, NULL},
157 	{"syssrc",		SET_SYSSRC,		MSG_set_syssrc, NULL},
158 	{"src",			SET_SRC,		MSG_set_src, NULL},
159 	{"sharesrc",		SET_SHARESRC,		MSG_set_sharesrc, NULL},
160 	{"gnusrc",		SET_GNUSRC,		MSG_set_gnusrc, NULL},
161 	{"xsrc",		SET_XSRC,		MSG_set_xsrc, NULL},
162 	{"debug",		SET_DEBUG,		MSG_set_debug, NULL},
163 	{"xdebug",		SET_X11_DEBUG,		MSG_set_xdebug, NULL},
164 	{NULL,			SET_GROUP_END,		NULL, NULL},
165 
166 	{NULL,			SET_LAST,		NULL, NULL},
167 };
168 
169 #define MAX_CD_INFOS	16	/* how many media can be found? */
170 struct cd_info {
171 	char device_name[16];
172 	char menu[100];
173 };
174 static struct cd_info cds[MAX_CD_INFOS];
175 
176 /*
177  * local prototypes
178  */
179 
180 static int check_for(unsigned int mode, const char *pathname);
181 static int get_iso9660_volname(int dev, int sess, char *volname);
182 static int get_available_cds(void);
183 
184 void
185 init_set_status(int flags)
186 {
187 	static const uint8_t sets_valid[] = {MD_SETS_VALID};
188 	static const uint8_t sets_selected_full[] = {MD_SETS_SELECTED};
189 	static const uint8_t sets_selected_minimal[] = {MD_SETS_SELECTED_MINIMAL};
190 	static const uint8_t sets_selected_nox[] = {MD_SETS_SELECTED_NOX};
191 	static const uint8_t *sets_selected;
192 	unsigned int nelem_selected;
193 	unsigned int i, len;
194 	const char *longest;
195 
196 	if (flags & SFLAG_MINIMAL) {
197 		sets_selected = sets_selected_minimal;
198 		nelem_selected = nelem(sets_selected_minimal);
199 	} else if (flags & SFLAG_NOX) {
200 		sets_selected = sets_selected_nox;
201 		nelem_selected = nelem(sets_selected_nox);
202 	} else {
203 		sets_selected = sets_selected_full;
204 		nelem_selected = nelem(sets_selected_full);
205 	}
206 
207 	for (i = 0; i < nelem(sets_valid); i++)
208 		set_status[sets_valid[i]] = SET_VALID;
209 	for (i = 0; i < nelem_selected; i++)
210 		set_status[sets_selected[i]] |= SET_SELECTED;
211 
212 	set_status[SET_GROUP] = SET_VALID;
213 
214 	/* Lookup some strings we need lots of times */
215 	msg_yes = msg_string(MSG_Yes);
216 	msg_no = msg_string(MSG_No);
217 	msg_all = msg_string(MSG_All);
218 	msg_some = msg_string(MSG_Some);
219 	msg_none = msg_string(MSG_None);
220 	msg_cur_distsets_row = msg_string(MSG_cur_distsets_row);
221 
222 	/* Find longest and use it to determine width of selection menu */
223 	len = strlen(msg_no); longest = msg_no;
224 	i = strlen(msg_yes); if (i > len) {len = i; longest = msg_yes; }
225 	i = strlen(msg_all); if (i > len) {len = i; longest = msg_all; }
226 	i = strlen(msg_some); if (i > len) {len = i; longest = msg_some; }
227 	i = strlen(msg_none); if (i > len) {len = i; longest = msg_none; }
228 	select_menu_width = snprintf(NULL, 0, msg_cur_distsets_row, "",longest);
229 
230 	/* Give the md code a chance to choose the right kernel, etc. */
231 	md_init_set_status(flags);
232 }
233 
234 int
235 dir_exists_p(const char *path)
236 {
237 
238 	return file_mode_match(path, S_IFDIR);
239 }
240 
241 int
242 file_exists_p(const char *path)
243 {
244 
245 	return file_mode_match(path, S_IFREG);
246 }
247 
248 int
249 file_mode_match(const char *path, unsigned int mode)
250 {
251 	struct stat st;
252 
253 	return (stat(path, &st) == 0 && (st.st_mode & S_IFMT) == mode);
254 }
255 
256 uint
257 get_ramsize(void)
258 {
259 	uint64_t ramsize;
260 	size_t len = sizeof ramsize;
261 	int mib[2] = {CTL_HW, HW_PHYSMEM64};
262 
263 	sysctl(mib, 2, &ramsize, &len, NULL, 0);
264 
265 	/* Find out how many Megs ... round up. */
266 	return (ramsize + MEG - 1) / MEG;
267 }
268 
269 void
270 run_makedev(void)
271 {
272 	char *owd;
273 
274 	msg_display_add("\n\n");
275 	msg_display_add(MSG_makedev);
276 
277 	owd = getcwd(NULL, 0);
278 
279 	/* make /dev, in case the user  didn't extract it. */
280 	make_target_dir("/dev");
281 	target_chdir_or_die("/dev");
282 	run_program(0, "/bin/sh MAKEDEV all");
283 
284 	chdir(owd);
285 	free(owd);
286 }
287 
288 /*
289  * Performs in-place replacement of a set of patterns in a file that lives
290  * inside the installed system.  The patterns must be separated by a semicolon.
291  * For example:
292  *
293  * replace("/etc/some-file.conf", "s/prop1=NO/prop1=YES/;s/foo/bar/");
294  */
295 void
296 replace(const char *path, const char *patterns, ...)
297 {
298 	char *spatterns;
299 	va_list ap;
300 
301 	va_start(ap, patterns);
302 	vasprintf(&spatterns, patterns, ap);
303 	va_end(ap);
304 	if (spatterns == NULL)
305 		err(1, "vasprintf(&spatterns, \"%s\", ...)", patterns);
306 
307 	run_program(RUN_CHROOT, "sed -an -e '%s;H;$!d;g;w %s' %s", spatterns,
308 	    path, path);
309 
310 	free(spatterns);
311 }
312 
313 static int
314 floppy_fetch(const char *set_name)
315 {
316 	char post[4];
317 	msg errmsg;
318 	int menu;
319 	int status;
320 	const char *write_mode = ">";
321 
322 	strcpy(post, "aa");
323 
324 	errmsg = "";
325 	menu = MENU_fdok;
326 	for (;;) {
327 		umount_mnt2();
328 		msg_display(errmsg);
329 		msg_display_add(MSG_fdmount, set_name, post);
330 		process_menu(menu, &status);
331 		if (status != SET_CONTINUE)
332 			return status;
333 		menu = MENU_fdremount;
334 		errmsg = MSG_fdremount;
335 		if (run_program(0, "/sbin/mount -r -t %s %s /mnt2",
336 							fd_type, fd_dev))
337 			continue;
338 		mnt2_mounted = 1;
339 		errmsg = MSG_fdnotfound;
340 
341 		/* Display this because it might take a while.... */
342 		if (run_program(RUN_DISPLAY,
343 			    "sh -c '/bin/cat /mnt2/%s.%s %s %s/%s/%s%s'",
344 			    set_name, post, write_mode,
345 			    target_prefix(), xfer_dir, set_name, dist_postfix))
346 			/* XXX: a read error will give a corrupt file! */
347 			continue;
348 
349 		/* We got that file, advance to next fragment */
350 		if (post[1] < 'z')
351 			post[1]++;
352 		else
353 			post[1] = 'a', post[0]++;
354 		write_mode = ">>";
355 		errmsg = "";
356 		menu = MENU_fdok;
357 	}
358 }
359 
360 /*
361  * Load files from floppy.  Requires a /mnt2 directory for mounting them.
362  */
363 int
364 get_via_floppy(void)
365 {
366 	int rv = -1;
367 
368 	process_menu(MENU_floppysource, &rv);
369 	if (rv == SET_RETRY)
370 		return SET_RETRY;
371 
372 	fetch_fn = floppy_fetch;
373 
374 	/* Set ext_dir for absolute path. */
375 	snprintf(ext_dir_bin, sizeof ext_dir_bin, "%s/%s", target_prefix(), xfer_dir);
376 	snprintf(ext_dir_src, sizeof ext_dir_src, "%s/%s", target_prefix(), xfer_dir);
377 
378 	return SET_OK;
379 }
380 
381 /*
382  * Get the volume name of a ISO9660 file system
383  */
384 static int
385 get_iso9660_volname(int dev, int sess, char *volname)
386 {
387 	int blkno, error, last;
388 	char buf[ISO_BLKSIZE];
389 	struct iso_volume_descriptor *vd = NULL;
390 	struct iso_primary_descriptor *pd = NULL;
391 
392 	for (blkno = sess+16; blkno < sess+16+100; blkno++) {
393 		error = pread(dev, buf, ISO_BLKSIZE, blkno*ISO_BLKSIZE);
394 		if (error == -1)
395 			return -1;
396 		vd = (struct iso_volume_descriptor *)&buf;
397 		if (memcmp(vd->id, ISO_STANDARD_ID, sizeof(vd->id)) != 0)
398 			return -1;
399 		if (isonum_711((const unsigned char *)&vd->type)
400 		     == ISO_VD_PRIMARY) {
401 			pd = (struct iso_primary_descriptor*)buf;
402 			strncpy(volname, pd->volume_id, sizeof pd->volume_id);
403 			last = sizeof pd->volume_id-1;
404 			while (last >= 0
405 			    && (volname[last] == ' ' || volname[last] == 0))
406 				last--;
407 			volname[last+1] = 0;
408 			return 0;
409 		}
410 	}
411 	return -1;
412 }
413 
414 /*
415  * Get a list of all available CD media (not drives!), return
416  * the number of entries collected.
417  */
418 static int
419 get_available_cds(void)
420 {
421 	char dname[16], volname[80];
422 	struct cd_info *info = cds;
423 	struct disklabel label;
424 	int i, part, dev, error, sess, ready, count = 0;
425 
426 	for (i = 0; i < MAX_CD_DEVS; i++) {
427 		sprintf(dname, "/dev/rcd%d%c", i, 'a'+RAW_PART);
428 		dev = open(dname, O_RDONLY, 0);
429 		if (dev == -1)
430 			break;
431 		ready = 0;
432 		error = ioctl(dev, DIOCTUR, &ready);
433 		if (error != 0 || ready == 0) {
434 			close(dev);
435 			continue;
436 		}
437 		error = ioctl(dev, DIOCGDINFO, &label);
438 		close(dev);
439 		if (error == 0) {
440 			for (part = 0; part < label.d_npartitions; part++) {
441 				if (label.d_partitions[part].p_fstype
442 					== FS_UNUSED
443 				    || label.d_partitions[part].p_size == 0)
444 					continue;
445 				if (label.d_partitions[part].p_fstype
446 				    == FS_ISO9660) {
447 					sess = label.d_partitions[part]
448 					    .p_cdsession;
449 					sprintf(dname, "/dev/rcd%d%c", i,
450 					    'a'+part);
451 					dev = open(dname, O_RDONLY, 0);
452 					if (dev == -1)
453 						continue;
454 					error = get_iso9660_volname(dev, sess,
455 					    volname);
456 					close(dev);
457 					if (error) continue;
458 					sprintf(info->device_name, "cd%d%c",
459 						i, 'a'+part);
460 					sprintf(info->menu, "%s (%s)",
461 						info->device_name,
462 						volname);
463 				} else {
464 					/*
465 					 * All install CDs use partition
466 					 * a for the sets.
467 					 */
468 					if (part > 0)
469 						continue;
470 					sprintf(info->device_name, "cd%d%c",
471 						i, 'a'+part);
472 					strcpy(info->menu, info->device_name);
473 				}
474 				info++;
475 				if (++count >= MAX_CD_INFOS)
476 					break;
477 			}
478 		}
479 	}
480 	return count;
481 }
482 
483 static int
484 cd_has_sets(void)
485 {
486 	/* Mount it */
487 	if (run_program(RUN_SILENT, "/sbin/mount -rt cd9660 /dev/%s /mnt2",
488 	    cdrom_dev) != 0)
489 		return 0;
490 
491 	mnt2_mounted = 1;
492 
493 	snprintf(ext_dir_bin, sizeof ext_dir_bin, "%s/%s", "/mnt2", set_dir_bin);
494 	snprintf(ext_dir_src, sizeof ext_dir_src, "%s/%s", "/mnt2", set_dir_src);
495 	return dir_exists_p(ext_dir_bin);
496 }
497 
498 /*
499  * Check whether we can remove the boot media.
500  * If it is not a local filesystem, return -1.
501  * If we can not decide for sure (can not tell MD content from plain ffs
502  * on hard disk, for example), return 0.
503  * If it is a CD/DVD, return 1.
504  */
505 int
506 boot_media_still_needed(void)
507 {
508 	struct statvfs sb;
509 
510 	if (statvfs("/", &sb) == 0) {
511 		if (!(sb.f_flag & ST_LOCAL))
512 			return -1;
513 		if (strcmp(sb.f_fstypename, MOUNT_CD9660) == 0
514 			   || strcmp(sb.f_fstypename, MOUNT_UDF) == 0)
515 			return 1;
516 	}
517 
518 	return 0;
519 }
520 
521 /*
522  * Get from a CDROM distribution.
523  * Also used on "installation using bootable install media"
524  * as the default option in the "distmedium" menu.
525  */
526 int
527 get_via_cdrom(void)
528 {
529 	menu_ent cd_menu[MAX_CD_INFOS];
530 	struct stat sb;
531 	int rv, num_cds, menu_cd, i, selected_cd = 0;
532 	bool silent = false;
533 	int mib[2];
534 	char rootdev[SSTRSIZE] = "";
535 	size_t varlen;
536 
537 	/* If root is not md(4) and we have set dir, skip this step. */
538 	mib[0] = CTL_KERN;
539 	mib[1] = KERN_ROOT_DEVICE;
540 	varlen = sizeof(rootdev);
541 	(void)sysctl(mib, 2, rootdev, &varlen, NULL, 0);
542 	if (stat(set_dir_bin, &sb) == 0 && S_ISDIR(sb.st_mode) &&
543 	    strncmp("md", rootdev, 2) != 0) {
544 	    	strlcpy(ext_dir_bin, set_dir_bin, sizeof ext_dir_bin);
545 	    	strlcpy(ext_dir_src, set_dir_src, sizeof ext_dir_src);
546 		return SET_OK;
547 	}
548 
549 	num_cds = get_available_cds();
550 	if (num_cds <= 0) {
551 		silent = true;
552 	} else if (num_cds == 1) {
553 		/* single CD found, check for sets on it */
554 		strcpy(cdrom_dev, cds[0].device_name);
555 		if (cd_has_sets())
556 			return SET_OK;
557 	} else {
558 		for (i = 0; i< num_cds; i++) {
559 			cd_menu[i].opt_name = cds[i].menu;
560 			cd_menu[i].opt_menu = OPT_NOMENU;
561 			cd_menu[i].opt_flags = OPT_EXIT;
562 			cd_menu[i].opt_action = set_menu_select;
563 		}
564 		/* create a menu offering available choices */
565 		menu_cd = new_menu(MSG_Available_cds,
566 			cd_menu, num_cds, -1, 4, 0, 0,
567 			MC_SCROLL | MC_NOEXITOPT,
568 			NULL, NULL, NULL, NULL, NULL);
569 		if (menu_cd == -1)
570 			return SET_RETRY;
571 		msg_display(MSG_ask_cd);
572 		process_menu(menu_cd, &selected_cd);
573 		free_menu(menu_cd);
574 		strcpy(cdrom_dev, cds[selected_cd].device_name);
575 		if (cd_has_sets())
576 			return SET_OK;
577 	}
578 
579 	if (silent)
580 		msg_display("");
581 	else {
582 		umount_mnt2();
583 		msg_display(MSG_cd_path_not_found);
584 		process_menu(MENU_ok, NULL);
585 	}
586 
587 	/* ask for paths on the CD */
588 	rv = -1;
589 	process_menu(MENU_cdromsource, &rv);
590 	if (rv == SET_RETRY)
591 		return SET_RETRY;
592 
593 	if (cd_has_sets())
594 		return SET_OK;
595 
596 	return SET_RETRY;
597 }
598 
599 
600 /*
601  * Get from a pathname inside an unmounted local filesystem
602  * (e.g., where sets were preloaded onto a local DOS partition)
603  */
604 int
605 get_via_localfs(void)
606 {
607 	int rv = -1;
608 
609 	/* Get device, filesystem, and filepath */
610 	process_menu (MENU_localfssource, &rv);
611 	if (rv == SET_RETRY)
612 		return SET_RETRY;
613 
614 	/* Mount it */
615 	if (run_program(0, "/sbin/mount -rt %s /dev/%s /mnt2",
616 	    localfs_fs, localfs_dev))
617 		return SET_RETRY;
618 
619 	mnt2_mounted = 1;
620 
621 	snprintf(ext_dir_bin, sizeof ext_dir_bin, "%s/%s/%s",
622 		"/mnt2", localfs_dir, set_dir_bin);
623 	snprintf(ext_dir_src, sizeof ext_dir_src, "%s/%s/%s",
624 		"/mnt2", localfs_dir, set_dir_src);
625 
626 	return SET_OK;
627 }
628 
629 /*
630  * Get from an already-mounted pathname.
631  */
632 
633 int
634 get_via_localdir(void)
635 {
636 	int rv = -1;
637 
638 	/* Get filepath */
639 	process_menu(MENU_localdirsource, &rv);
640 	if (rv == SET_RETRY)
641 		return SET_RETRY;
642 
643 	/*
644 	 * We have to have an absolute path ('cos pax runs in a
645 	 * different directory), make it so.
646 	 */
647 	snprintf(ext_dir_bin, sizeof ext_dir_bin, "/%s/%s", localfs_dir, set_dir_bin);
648 	snprintf(ext_dir_src, sizeof ext_dir_src, "/%s/%s", localfs_dir, set_dir_src);
649 
650 	return SET_OK;
651 }
652 
653 
654 /*
655  * Support for custom distribution fetches / unpacks.
656  */
657 
658 unsigned int
659 set_X11_selected(void)
660 {
661 	int i;
662 
663 	for (i = SET_X11_FIRST; ++i < SET_X11_LAST;)
664 		if (set_status[i] & SET_SELECTED)
665 			return 1;
666 	return 0;
667 }
668 
669 unsigned int
670 get_kernel_set(void)
671 {
672 	int i;
673 
674 	for (i = SET_KERNEL_FIRST; ++i < SET_KERNEL_LAST;)
675 		if (set_status[i] & SET_SELECTED)
676 			return i;
677 	return SET_NONE;
678 }
679 
680 void
681 set_kernel_set(unsigned int kernel_set)
682 {
683 	int i;
684 
685 	/* only one kernel set is allowed */
686 	for (i = SET_KERNEL_FIRST; ++i < SET_KERNEL_LAST;)
687 		set_status[i] &= ~SET_SELECTED;
688 	set_status[kernel_set] |= SET_SELECTED;
689 }
690 
691 static int
692 set_toggle(menudesc *menu, void *arg)
693 {
694 	distinfo **distp = arg;
695 	int set = distp[menu->cursel]->set;
696 
697 	if (set > SET_KERNEL_FIRST && set < SET_KERNEL_LAST &&
698 	    !(set_status[set] & SET_SELECTED))
699 		set_kernel_set(set);
700 	else
701 		set_status[set] ^= SET_SELECTED;
702 	return 0;
703 }
704 
705 static int
706 set_all_none(menudesc *menu, void *arg, int set, int clr)
707 {
708 	distinfo **distp = arg;
709 	distinfo *dist = *distp;
710 	int nested;
711 
712 	for (nested = 0; dist->set != SET_GROUP_END || nested--; dist++) {
713 		if (dist->set == SET_GROUP) {
714 			nested++;
715 			continue;
716 		}
717 		set_status[dist->set] = (set_status[dist->set] & ~clr) | set;
718 	}
719 	return 0;
720 }
721 
722 static int
723 set_all(menudesc *menu, void *arg)
724 {
725 	return set_all_none(menu, arg, SET_SELECTED, 0);
726 }
727 
728 static int
729 set_none(menudesc *menu, void *arg)
730 {
731 	return set_all_none(menu, arg, 0, SET_SELECTED);
732 }
733 
734 static void
735 set_label(menudesc *menu, int opt, void *arg)
736 {
737 	distinfo **distp = arg;
738 	distinfo *dist = distp[opt];
739 	const char *selected;
740 	const char *desc;
741 	int nested;
742 
743 	desc = dist->desc;
744 
745 	if (dist->set != SET_GROUP)
746 		selected = set_status[dist->set] & SET_SELECTED ? msg_yes : msg_no;
747 	else {
748 		/* sub menu - display None/Some/All */
749 		nested = 0;
750 		selected = "unknown";
751 		while ((++dist)->set != SET_GROUP_END || nested--) {
752 			if (dist->set == SET_GROUP) {
753 				nested++;
754 				continue;
755 			}
756 			if (!(set_status[dist->set] & SET_VALID))
757 				continue;
758 			if (set_status[dist->set] & SET_SELECTED) {
759 				if (selected == msg_none) {
760 					selected = msg_some;
761 					break;
762 				}
763 				selected = msg_all;
764 			} else {
765 				if (selected == msg_all) {
766 					selected = msg_some;
767 					break;
768 				}
769 				selected = msg_none;
770 			}
771 		}
772 	}
773 
774 	wprintw(menu->mw, msg_cur_distsets_row, msg_string(desc), selected);
775 }
776 
777 static int set_sublist(menudesc *menu, void *arg);
778 
779 static int
780 initialise_set_menu(distinfo *dist, menu_ent *me, distinfo **de, int all_none)
781 {
782 	int set;
783 	int sets;
784 	int nested;
785 
786 	for (sets = 0; ; dist++) {
787 		set = dist->set;
788 		if (set == SET_LAST || set == SET_GROUP_END)
789 			break;
790 		if (!(set_status[set] & SET_VALID))
791 			continue;
792 		*de = dist;
793 		me->opt_menu = OPT_NOMENU;
794 		me->opt_flags = 0;
795 		me->opt_name = NULL;
796 		if (set != SET_GROUP)
797 			me->opt_action = set_toggle;
798 		else {
799 			/* Collapse sublist */
800 			nested = 0;
801 			while ((++dist)->set != SET_GROUP_END || nested--) {
802 				if (dist->set == SET_GROUP)
803 					nested++;
804 			}
805 			me->opt_action = set_sublist;
806 		}
807 		sets++;
808 		de++;
809 		me++;
810 	}
811 
812 	if (all_none) {
813 		me->opt_menu = OPT_NOMENU;
814 		me->opt_flags = 0;
815 		me->opt_name = MSG_select_all;
816 		me->opt_action = set_all;
817 		me++;
818 		me->opt_menu = OPT_NOMENU;
819 		me->opt_flags = 0;
820 		me->opt_name = MSG_select_none;
821 		me->opt_action = set_none;
822 		sets += 2;
823 	}
824 
825 	return sets;
826 }
827 
828 static int
829 set_sublist(menudesc *menu, void *arg)
830 {
831 	distinfo *de[SET_LAST];
832 	menu_ent me[SET_LAST];
833 	distinfo **dist = arg;
834 	int menu_no;
835 	int sets;
836 
837 	sets = initialise_set_menu(dist[menu->cursel] + 1, me, de, 1);
838 
839 	menu_no = new_menu(NULL, me, sets, 20, 10, 0, select_menu_width,
840 		MC_SUBMENU | MC_SCROLL | MC_DFLTEXIT,
841 		NULL, set_label, NULL, NULL,
842 		MSG_install_selected_sets);
843 
844 	process_menu(menu_no, de);
845 	free_menu(menu_no);
846 
847 	return 0;
848 }
849 
850 void
851 customise_sets(void)
852 {
853 	distinfo *de[SET_LAST];
854 	menu_ent me[SET_LAST];
855 	int sets;
856 	int menu_no;
857 
858 	msg_display(MSG_cur_distsets);
859 	msg_table_add(MSG_cur_distsets_header);
860 
861 	sets = initialise_set_menu(dist_list, me, de, 0);
862 
863 	menu_no = new_menu(NULL, me, sets, 0, 5, 0, select_menu_width,
864 		MC_SCROLL | MC_NOBOX | MC_DFLTEXIT | MC_NOCLEAR,
865 		NULL, set_label, NULL, NULL,
866 		MSG_install_selected_sets);
867 
868 	process_menu(menu_no, de);
869 	free_menu(menu_no);
870 }
871 
872 /*
873  * Extract_file **REQUIRES** an absolute path in ext_dir.  Any code
874  * that sets up xfer_dir for use by extract_file needs to put in the
875  * full path name to the directory.
876  */
877 
878 int
879 extract_file(distinfo *dist, int update)
880 {
881 	char path[STRSIZE];
882 	char *owd;
883 	int   rval;
884 
885 	/* If we might need to tidy up, ensure directory exists */
886 	if (fetch_fn != NULL)
887 		make_target_dir(xfer_dir);
888 
889 	(void)snprintf(path, sizeof path, "%s/%s%s",
890 	    ext_dir_for_set(dist->name), dist->name, dist_postfix);
891 
892 	owd = getcwd(NULL, 0);
893 
894 	/* Do we need to fetch the file now? */
895 	if (fetch_fn != NULL) {
896 		rval = fetch_fn(dist->name);
897 		if (rval != SET_OK)
898 			return rval;
899 	}
900 
901 	/* check tarfile exists */
902 	if (!file_exists_p(path)) {
903 
904 #ifdef SUPPORT_8_3_SOURCE_FILESYSTEM
905 	/*
906 	 * Update path to use dist->name truncated to the first eight
907 	 * characters and check again
908 	 */
909 	(void)snprintf(path, sizeof path, "%s/%.8s%.4s", /* 4 as includes '.' */
910 	    ext_dir_for_set(dist->name), dist->name, dist_postfix);
911 		if (!file_exists_p(path)) {
912 #endif /* SUPPORT_8_3_SOURCE_FILESYSTEM */
913 
914 		tarstats.nnotfound++;
915 
916 		msg_display(MSG_notarfile, path);
917 		process_menu(MENU_ok, NULL);
918 		return SET_RETRY;
919 	}
920 #ifdef SUPPORT_8_3_SOURCE_FILESYSTEM
921 	}
922 #endif /* SUPPORT_8_3_SOURCE_FILESYSTEM */
923 
924 	tarstats.nfound++;
925 	/* cd to the target root. */
926 	if (update && (dist->set == SET_ETC || dist->set == SET_X11_ETC)) {
927 		make_target_dir("/.sysinst");
928 		target_chdir_or_die("/.sysinst");
929 	} else if (dist->set == SET_PKGSRC)
930 		target_chdir_or_die("/usr");
931 	else
932 		target_chdir_or_die("/");
933 
934 	/*
935 	 * /usr/X11R7/lib/X11/xkb/symbols/pc was a directory in 5.0
936 	 * but is a file in 5.1 and beyond, so on upgrades we need to
937 	 * delete it before extracting the xbase set.
938 	 */
939 	if (update && dist->set == SET_X11_BASE)
940 		run_program(0, "rm -rf usr/X11R7/lib/X11/xkb/symbols/pc");
941 
942 	/* now extract set files into "./". */
943 	rval = run_program(RUN_DISPLAY | RUN_PROGRESS,
944 			"progress -zf %s tar --chroot -xhepf -", path);
945 
946 	chdir(owd);
947 	free(owd);
948 
949 	/* Check rval for errors and give warning. */
950 	if (rval != 0) {
951 		tarstats.nerror++;
952 		msg_display(MSG_tarerror, path);
953 		process_menu(MENU_ok, NULL);
954 		return SET_RETRY;
955 	}
956 
957 	if (fetch_fn != NULL && clean_xfer_dir) {
958 		run_program(0, "rm %s", path);
959 		/* Plausibly we should unlink an empty xfer_dir as well */
960 	}
961 
962 	set_status[dist->set] |= SET_INSTALLED;
963 	tarstats.nsuccess++;
964 	return SET_OK;
965 }
966 
967 static void
968 skip_set(distinfo *dist, int skip_type)
969 {
970 	int nested;
971 	int set;
972 
973 	nested = 0;
974 	while ((++dist)->set != SET_GROUP_END || nested--) {
975 		set = dist->set;
976 		if (set == SET_GROUP) {
977 			nested++;
978 			continue;
979 		}
980 		if (set == SET_LAST)
981 			break;
982 		if (set_status[set] == (SET_SELECTED | SET_VALID))
983 			set_status[set] |= SET_SKIPPED;
984 		tarstats.nskipped++;
985 	}
986 }
987 
988 /*
989  * Get and unpack the distribution.
990  * Show success_msg if installation completes.
991  * Otherwise show failure_msg and wait for the user to ack it before continuing.
992  * success_msg and failure_msg must both be 0-adic messages.
993  */
994 int
995 get_and_unpack_sets(int update, msg setupdone_msg, msg success_msg, msg failure_msg)
996 {
997 	distinfo *dist;
998 	int status;
999 	int set;
1000 
1001 	/* Ensure mountpoint for distribution files exists in current root. */
1002 	(void)mkdir("/mnt2", S_IRWXU| S_IRGRP|S_IXGRP | S_IROTH|S_IXOTH);
1003 	if (script)
1004 		(void)fprintf(script, "mkdir -m 755 /mnt2\n");
1005 
1006 	/* reset failure/success counters */
1007 	memset(&tarstats, 0, sizeof(tarstats));
1008 
1009 	/* Find out which files to "get" if we get files. */
1010 
1011 	/* Accurately count selected sets */
1012 	for (dist = dist_list; (set = dist->set) != SET_LAST; dist++) {
1013 		if ((set_status[set] & (SET_VALID | SET_SELECTED))
1014 		    == (SET_VALID | SET_SELECTED))
1015 			tarstats.nselected++;
1016 	}
1017 
1018 	status = SET_RETRY;
1019 	for (dist = dist_list; ; dist++) {
1020 		set = dist->set;
1021 		if (set == SET_LAST)
1022 			break;
1023 		if (dist->name == NULL)
1024 			continue;
1025 		if (set_status[set] != (SET_VALID | SET_SELECTED))
1026 			continue;
1027 
1028 		if (status != SET_OK) {
1029 			/* This might force a redraw.... */
1030 			clearok(curscr, 1);
1031 			touchwin(stdscr);
1032 			wrefresh(stdscr);
1033 			/* Sort out the location of the set files */
1034 			do {
1035 				umount_mnt2();
1036 				msg_display(MSG_distmedium, tarstats.nselected,
1037 				    tarstats.nsuccess + tarstats.nskipped,
1038 				    dist->name);
1039 				fetch_fn = NULL;
1040 				process_menu(MENU_distmedium, &status);
1041 			} while (status == SET_RETRY);
1042 
1043 			if (status == SET_SKIP) {
1044 				set_status[set] |= SET_SKIPPED;
1045 				tarstats.nskipped++;
1046 				continue;
1047 			}
1048 			if (status == SET_SKIP_GROUP) {
1049 				skip_set(dist, status);
1050 				continue;
1051 			}
1052 			if (status != SET_OK) {
1053 				msg_display(failure_msg);
1054 				process_menu(MENU_ok, NULL);
1055 				return 1;
1056 			}
1057 		}
1058 
1059 		/* Try to extract this set */
1060 		status = extract_file(dist, update);
1061 		if (status == SET_RETRY)
1062 			dist--;
1063 	}
1064 
1065 	if (tarstats.nerror == 0 && tarstats.nsuccess == tarstats.nselected) {
1066 		msg_display(MSG_endtarok);
1067 		/* Give user a chance to see the success message */
1068 		sleep(1);
1069 	} else {
1070 		/* We encountered errors. Let the user know. */
1071 		msg_display(MSG_endtar,
1072 		    tarstats.nselected, tarstats.nnotfound, tarstats.nskipped,
1073 		    tarstats.nfound, tarstats.nsuccess, tarstats.nerror);
1074 		process_menu(MENU_ok, NULL);
1075 		msg_clear();
1076 	}
1077 
1078 	/*
1079 	 * postinstall needs to be run after extracting all sets, because
1080 	 * otherwise /var/db/obsolete will only have current information
1081 	 * from the base, comp, and etc sets.
1082 	 */
1083 	if (update && (set_status[SET_ETC] & SET_INSTALLED)) {
1084 		int oldsendmail;
1085 		oldsendmail = run_program(RUN_DISPLAY | RUN_CHROOT |
1086 					  RUN_ERROR_OK | RUN_PROGRESS,
1087 					  "/usr/sbin/postinstall -s /.sysinst -d / check mailerconf");
1088 		if (oldsendmail == 1) {
1089 			msg_display(MSG_oldsendmail);
1090 			if (ask_yesno(NULL)) {
1091 				run_program(RUN_DISPLAY | RUN_CHROOT,
1092 					    "/usr/sbin/postinstall -s /.sysinst -d / fix mailerconf");
1093 			}
1094 		}
1095 		run_program(RUN_DISPLAY | RUN_CHROOT,
1096 			"/usr/sbin/postinstall -s /.sysinst -d / fix");
1097 
1098 		/* Don't discard the system's old entropy if any */
1099 		run_program(RUN_CHROOT | RUN_SILENT,
1100 			    "/etc/rc.d/random_seed start");
1101 	}
1102 
1103 	/* Configure the system */
1104 	if (set_status[SET_BASE] & SET_INSTALLED)
1105 		run_makedev();
1106 
1107 	if (!update) {
1108 		struct stat sb1, sb2;
1109 
1110 		if (stat(target_expand("/"), &sb1) == 0
1111 		    && stat(target_expand("/var"), &sb2) == 0
1112 		    && sb1.st_dev != sb2.st_dev) {
1113 			add_rc_conf("random_file=/etc/entropy-file\n");
1114 			if (target_file_exists_p("/boot.cfg")) {
1115 				run_program(RUN_CHROOT|RUN_FATAL,
1116 					    "sh -c 'sed -e s./var/db/./etc/. "
1117 					    "< /boot.cfg "
1118 					    "> /tmp/boot.cfg.tmp'");
1119 				mv_within_target_or_die("/tmp/boot.cfg.tmp",
1120 							"/boot.cfg");
1121 			}
1122 		}
1123 
1124 		/* Save keyboard type */
1125 		save_kb_encoding();
1126 
1127 		/* Other configuration. */
1128 		mnt_net_config();
1129 	}
1130 
1131 	/* Mounted dist dir? */
1132 	umount_mnt2();
1133 
1134 	/* Save entropy -- on some systems it's ~all we'll ever get */
1135 	run_program(RUN_DISPLAY | RUN_CHROOT | RUN_FATAL | RUN_PROGRESS,
1136 		    "/etc/rc.d/random_seed stop");
1137 	/* Install/Upgrade complete ... reboot or exit to script */
1138 	msg_display(success_msg);
1139 	process_menu(MENU_ok, NULL);
1140 	return 0;
1141 }
1142 
1143 void
1144 umount_mnt2(void)
1145 {
1146 	if (!mnt2_mounted)
1147 		return;
1148 	run_program(RUN_SILENT, "/sbin/umount /mnt2");
1149 	mnt2_mounted = 0;
1150 }
1151 
1152 
1153 /*
1154  * Do a quick sanity check that  the target can reboot.
1155  * return 1 if everything OK, 0 if there is a problem.
1156  * Uses a table of files we expect to find after a base install/upgrade.
1157  */
1158 
1159 /* test flag and pathname to check for after unpacking. */
1160 struct check_table { unsigned int mode; const char *path;} checks[] = {
1161   { S_IFREG, "/netbsd" },
1162   { S_IFDIR, "/etc" },
1163   { S_IFREG, "/etc/fstab" },
1164   { S_IFREG, "/sbin/init" },
1165   { S_IFREG, "/bin/sh" },
1166   { S_IFREG, "/etc/rc" },
1167   { S_IFREG, "/etc/rc.subr" },
1168   { S_IFREG, "/etc/rc.conf" },
1169   { S_IFDIR, "/dev" },
1170   { S_IFCHR, "/dev/console" },
1171 /* XXX check for rootdev in target /dev? */
1172   { S_IFREG, "/sbin/fsck" },
1173   { S_IFREG, "/sbin/fsck_ffs" },
1174   { S_IFREG, "/sbin/mount" },
1175   { S_IFREG, "/sbin/mount_ffs" },
1176   { S_IFREG, "/sbin/mount_nfs" },
1177 #if defined(DEBUG) || defined(DEBUG_CHECK)
1178   { S_IFREG, "/foo/bar" },		/* bad entry to exercise warning */
1179 #endif
1180   { 0, 0 }
1181 
1182 };
1183 
1184 /*
1185  * Check target for a single file.
1186  */
1187 static int
1188 check_for(unsigned int mode, const char *pathname)
1189 {
1190 	int found;
1191 
1192 	found = (target_test(mode, pathname) == 0);
1193 	if (found == 0)
1194 		msg_display(MSG_rootmissing, pathname);
1195 	return found;
1196 }
1197 
1198 /*
1199  * Check that all the files in check_table are present in the
1200  * target root. Warn if not found.
1201  */
1202 int
1203 sanity_check(void)
1204 {
1205 	int target_ok = 1;
1206 	struct check_table *p;
1207 
1208 	for (p = checks; p->path; p++) {
1209 		target_ok = target_ok && check_for(p->mode, p->path);
1210 	}
1211 	if (target_ok)
1212 		return 0;
1213 
1214 	/* Uh, oh. Something's missing. */
1215 	msg_display(MSG_badroot);
1216 	process_menu(MENU_ok, NULL);
1217 	return 1;
1218 }
1219 
1220 /*
1221  * Some globals to pass things back from callbacks
1222  */
1223 static char zoneinfo_dir[STRSIZE];
1224 static int zonerootlen;
1225 static char *tz_selected;	/* timezonename (relative to share/zoneinfo */
1226 const char *tz_default;		/* UTC, or whatever /etc/localtime points to */
1227 static char tz_env[STRSIZE];
1228 static int save_cursel, save_topline;
1229 
1230 /*
1231  * Callback from timezone menu
1232  */
1233 static int
1234 set_tz_select(menudesc *m, void *arg)
1235 {
1236 	time_t t;
1237 	char *new;
1238 	struct tm *tm;
1239 
1240 	if (m && strcmp(tz_selected, m->opts[m->cursel].opt_name) != 0) {
1241 		/* Change the displayed timezone */
1242 		new = strdup(m->opts[m->cursel].opt_name);
1243 		if (new == NULL)
1244 			return 0;
1245 		free(tz_selected);
1246 		tz_selected = new;
1247 		snprintf(tz_env, sizeof tz_env, "%.*s%s",
1248 			 zonerootlen, zoneinfo_dir, tz_selected);
1249 		setenv("TZ", tz_env, 1);
1250 	}
1251 	if (m)
1252 		/* Warp curser to 'Exit' line on menu */
1253 		m->cursel = -1;
1254 
1255 	/* Update displayed time */
1256 	t = time(NULL);
1257 	tm = localtime(&t);
1258 	msg_display(MSG_choose_timezone,
1259 		    tz_default, tz_selected, safectime(&t), tm ? tm->tm_zone :
1260 		    "?");
1261 	return 0;
1262 }
1263 
1264 static int
1265 set_tz_back(menudesc *m, void *arg)
1266 {
1267 
1268 	zoneinfo_dir[zonerootlen] = 0;
1269 	m->cursel = save_cursel;
1270 	m->topline = save_topline;
1271 	return 0;
1272 }
1273 
1274 static int
1275 set_tz_dir(menudesc *m, void *arg)
1276 {
1277 
1278 	strlcpy(zoneinfo_dir + zonerootlen, m->opts[m->cursel].opt_name,
1279 		sizeof zoneinfo_dir - zonerootlen);
1280 	save_cursel = m->cursel;
1281 	save_topline = m->topline;
1282 	m->cursel = 0;
1283 	m->topline = 0;
1284 	return 0;
1285 }
1286 
1287 /*
1288  * Alarm-handler to update example-display
1289  */
1290 static void
1291 /*ARGSUSED*/
1292 timezone_sig(int sig)
1293 {
1294 
1295 	set_tz_select(NULL, NULL);
1296 	alarm(60);
1297 }
1298 
1299 static int
1300 tz_sort(const void *a, const void *b)
1301 {
1302 	return strcmp(((const menu_ent *)a)->opt_name, ((const menu_ent *)b)->opt_name);
1303 }
1304 
1305 static void
1306 tzm_set_names(menudesc *m, void *arg)
1307 {
1308 	DIR *dir;
1309 	struct dirent *dp;
1310 	static int nfiles;
1311 	static int maxfiles = 32;
1312 	static menu_ent *tz_menu;
1313 	static char **tz_names;
1314 	void *p;
1315 	int maxfname;
1316 	char *fp;
1317 	struct stat sb;
1318 
1319 	if (tz_menu == NULL)
1320 		tz_menu = malloc(maxfiles * sizeof *tz_menu);
1321 	if (tz_names == NULL)
1322 		tz_names = malloc(maxfiles * sizeof *tz_names);
1323 	if (tz_menu == NULL || tz_names == NULL)
1324 		return;	/* error - skip timezone setting */
1325 	while (nfiles > 0)
1326 		free(tz_names[--nfiles]);
1327 
1328 	dir = opendir(zoneinfo_dir);
1329 	fp = strchr(zoneinfo_dir, 0);
1330 	if (fp != zoneinfo_dir + zonerootlen) {
1331 		tz_names[0] = 0;
1332 		tz_menu[0].opt_name = msg_string(MSG_tz_back);
1333 		tz_menu[0].opt_menu = OPT_NOMENU;
1334 		tz_menu[0].opt_flags = 0;
1335 		tz_menu[0].opt_action = set_tz_back;
1336 		nfiles = 1;
1337 	}
1338 	maxfname = zoneinfo_dir + sizeof zoneinfo_dir - fp - 1;
1339 	if (dir != NULL) {
1340 		while ((dp = readdir(dir)) != NULL) {
1341 			if (dp->d_namlen > maxfname || dp->d_name[0] == '.')
1342 				continue;
1343 			strlcpy(fp, dp->d_name, maxfname);
1344 			if (stat(zoneinfo_dir, &sb) == -1)
1345 				continue;
1346 			if (nfiles >= maxfiles) {
1347 				p = realloc(tz_menu, 2 * maxfiles * sizeof *tz_menu);
1348 				if (p == NULL)
1349 					break;
1350 				tz_menu = p;
1351 				p = realloc(tz_names, 2 * maxfiles * sizeof *tz_names);
1352 				if (p == NULL)
1353 					break;
1354 				tz_names = p;
1355 				maxfiles *= 2;
1356 			}
1357 			if (S_ISREG(sb.st_mode))
1358 				tz_menu[nfiles].opt_action = set_tz_select;
1359 			else if (S_ISDIR(sb.st_mode)) {
1360 				tz_menu[nfiles].opt_action = set_tz_dir;
1361 				strlcat(fp, "/",
1362 				    sizeof(zoneinfo_dir) - (fp - zoneinfo_dir));
1363 			} else
1364 				continue;
1365 			tz_names[nfiles] = strdup(zoneinfo_dir + zonerootlen);
1366 			tz_menu[nfiles].opt_name = tz_names[nfiles];
1367 			tz_menu[nfiles].opt_menu = OPT_NOMENU;
1368 			tz_menu[nfiles].opt_flags = 0;
1369 			nfiles++;
1370 		}
1371 		closedir(dir);
1372 	}
1373 	*fp = 0;
1374 
1375 	m->opts = tz_menu;
1376 	m->numopts = nfiles;
1377 	qsort(tz_menu, nfiles, sizeof *tz_menu, tz_sort);
1378 }
1379 
1380 void
1381 get_tz_default(void)
1382 {
1383 	char localtime_link[STRSIZE];
1384 	static char localtime_target[STRSIZE];
1385 	int rc;
1386 
1387 	strlcpy(localtime_link, target_expand("/etc/localtime"),
1388 	    sizeof localtime_link);
1389 
1390 	/* Add sanity check that /mnt/usr/share/zoneinfo contains
1391 	 * something useful
1392 	 */
1393 
1394 	rc = readlink(localtime_link, localtime_target,
1395 		      sizeof(localtime_target) - 1);
1396 	if (rc < 0) {
1397 		/* error, default to UTC */
1398 		tz_default = "UTC";
1399 	} else {
1400 		localtime_target[rc] = '\0';
1401 		tz_default = strchr(strstr(localtime_target, "zoneinfo"), '/') + 1;
1402 	}
1403 }
1404 
1405 /*
1406  * Choose from the files in usr/share/zoneinfo and set etc/localtime
1407  */
1408 int
1409 set_timezone(void)
1410 {
1411 	char localtime_link[STRSIZE];
1412 	char localtime_target[STRSIZE];
1413 	time_t t;
1414 	struct tm *tm;
1415 	int menu_no;
1416 
1417 	strlcpy(zoneinfo_dir, target_expand("/usr/share/zoneinfo/"),
1418 	    sizeof zoneinfo_dir - 1);
1419 	zonerootlen = strlen(zoneinfo_dir);
1420 
1421 	get_tz_default();
1422 
1423 	tz_selected = strdup(tz_default);
1424 	snprintf(tz_env, sizeof(tz_env), "%s%s", zoneinfo_dir, tz_selected);
1425 	setenv("TZ", tz_env, 1);
1426 	t = time(NULL);
1427 	tm = localtime(&t);
1428 	msg_display(MSG_choose_timezone,
1429 		    tz_default, tz_selected, safectime(&t), tm ? tm->tm_zone :
1430 		    "?");
1431 
1432 	signal(SIGALRM, timezone_sig);
1433 	alarm(60);
1434 
1435 	menu_no = new_menu(NULL, NULL, 14, 23, 9,
1436 			   12, 32, MC_ALWAYS_SCROLL | MC_NOSHORTCUT,
1437 			   tzm_set_names, NULL, NULL,
1438 			   "\nPlease consult the install documents.", NULL);
1439 	if (menu_no < 0)
1440 		goto done;	/* error - skip timezone setting */
1441 
1442 	process_menu(menu_no, NULL);
1443 
1444 	free_menu(menu_no);
1445 
1446 	signal(SIGALRM, SIG_IGN);
1447 
1448 	snprintf(localtime_target, sizeof(localtime_target),
1449 		 "/usr/share/zoneinfo/%s", tz_selected);
1450 	strlcpy(localtime_link, target_expand("/etc/localtime"),
1451 	    sizeof localtime_link);
1452 	unlink(localtime_link);
1453 	symlink(localtime_target, localtime_link);
1454 
1455 done:
1456 	return 1;
1457 }
1458 
1459 void
1460 scripting_vfprintf(FILE *f, const char *fmt, va_list ap)
1461 {
1462 
1463 	if (f)
1464 		(void)vfprintf(f, fmt, ap);
1465 	if (script)
1466 		(void)vfprintf(script, fmt, ap);
1467 }
1468 
1469 void
1470 scripting_fprintf(FILE *f, const char *fmt, ...)
1471 {
1472 	va_list ap;
1473 
1474 	va_start(ap, fmt);
1475 	scripting_vfprintf(f, fmt, ap);
1476 	va_end(ap);
1477 }
1478 
1479 void
1480 add_rc_conf(const char *fmt, ...)
1481 {
1482 	FILE *f;
1483 	va_list ap;
1484 
1485 	va_start(ap, fmt);
1486 	f = target_fopen("/etc/rc.conf", "a");
1487 	if (f != 0) {
1488 		scripting_fprintf(NULL, "cat <<EOF >>%s/etc/rc.conf\n",
1489 		    target_prefix());
1490 		scripting_vfprintf(f, fmt, ap);
1491 		fclose(f);
1492 		scripting_fprintf(NULL, "EOF\n");
1493 	}
1494 	va_end(ap);
1495 }
1496 
1497 int
1498 del_rc_conf(const char *value)
1499 {
1500 	FILE *fp, *nfp;
1501 	char buf[4096]; /* Ridiculously high, but should be enough in any way */
1502 	char *rcconf, *tempname = NULL, *bakname = NULL;
1503 	char *cp;
1504 	int done = 0;
1505 	int fd;
1506 	int retval = 0;
1507 
1508 	/* The paths might seem strange, but using /tmp would require copy instead
1509 	 * of rename operations. */
1510 	if (asprintf(&rcconf, "%s", target_expand("/etc/rc.conf")) < 0
1511 			|| asprintf(&tempname, "%s", target_expand("/etc/rc.conf.tmp.XXXXXX")) < 0
1512 			|| asprintf(&bakname, "%s", target_expand("/etc/rc.conf.bak.XXXXXX")) < 0) {
1513 		if (rcconf)
1514 			free(rcconf);
1515 		if (tempname)
1516 			free(tempname);
1517 		msg_display(MSG_rcconf_delete_failed, value);
1518 		process_menu(MENU_ok, NULL);
1519 		return -1;
1520 	}
1521 
1522 	if ((fd = mkstemp(bakname)) < 0) {
1523 		msg_display(MSG_rcconf_delete_failed, value);
1524 		process_menu(MENU_ok, NULL);
1525 		return -1;
1526 	}
1527 	close(fd);
1528 
1529 	if (!(fp = fopen(rcconf, "r+")) || (fd = mkstemp(tempname)) < 0) {
1530 		if (fp)
1531 			fclose(fp);
1532 		msg_display(MSG_rcconf_delete_failed, value);
1533 		process_menu(MENU_ok, NULL);
1534 		return -1;
1535 	}
1536 
1537 	nfp = fdopen(fd, "w");
1538 	if (!nfp) {
1539 		fclose(fp);
1540 		close(fd);
1541 		msg_display(MSG_rcconf_delete_failed, value);
1542 		process_menu(MENU_ok, NULL);
1543 		return -1;
1544 	}
1545 
1546 	while (fgets(buf, sizeof buf, fp) != NULL) {
1547 
1548 		cp = buf + strspn(buf, " \t"); /* Skip initial spaces */
1549 		if (strncmp(cp, value, strlen(value)) == 0) {
1550 			cp += strlen(value);
1551 			if (*cp != '=')
1552 				scripting_fprintf(nfp, "%s", buf);
1553 			else
1554 				done = 1;
1555 		} else {
1556 			scripting_fprintf(nfp, "%s", buf);
1557 		}
1558 	}
1559 	fclose(fp);
1560 	fclose(nfp);
1561 
1562 	if (done) {
1563 		if (rename(rcconf, bakname)) {
1564 			msg_display(MSG_rcconf_backup_failed);
1565 			if (!ask_noyes(NULL)) {
1566 				retval = -1;
1567 				goto done;
1568 			}
1569 		}
1570 
1571 		if (rename(tempname, rcconf)) {
1572 			if (rename(bakname, rcconf)) {
1573 				msg_display(MSG_rcconf_restore_failed);
1574 				process_menu(MENU_ok, NULL);
1575 			} else {
1576 				msg_display(MSG_rcconf_delete_failed, value);
1577 				process_menu(MENU_ok, NULL);
1578 			}
1579 		} else {
1580 			(void)unlink(bakname);
1581 		}
1582 	}
1583 
1584 done:
1585 	(void)unlink(tempname);
1586 	free(rcconf);
1587 	free(tempname);
1588 	free(bakname);
1589 	return retval;
1590 }
1591 
1592 void
1593 add_sysctl_conf(const char *fmt, ...)
1594 {
1595 	FILE *f;
1596 	va_list ap;
1597 
1598 	va_start(ap, fmt);
1599 	f = target_fopen("/etc/sysctl.conf", "a");
1600 	if (f != 0) {
1601 		scripting_fprintf(NULL, "cat <<EOF >>%s/etc/sysctl.conf\n",
1602 		    target_prefix());
1603 		scripting_vfprintf(f, fmt, ap);
1604 		fclose(f);
1605 		scripting_fprintf(NULL, "EOF\n");
1606 	}
1607 	va_end(ap);
1608 }
1609 
1610 void
1611 enable_rc_conf(void)
1612 {
1613 
1614 	replace("/etc/rc.conf", "s/^rc_configured=NO/rc_configured=YES/");
1615 }
1616 
1617 int
1618 check_lfs_progs(void)
1619 {
1620 
1621 #ifndef NO_LFS
1622 	return binary_available("fsck_lfs") && binary_available("mount_lfs")
1623 	    && binary_available("newfs_lfs");
1624 #else
1625 	return 0;
1626 #endif
1627 }
1628 
1629 int
1630 set_is_source(const char *set_name) {
1631 	int len = strlen(set_name);
1632 	return len >= 3 && memcmp(set_name + len - 3, "src", 3) == 0;
1633 }
1634 
1635 const char *
1636 set_dir_for_set(const char *set_name) {
1637 	if (strcmp(set_name, "pkgsrc") == 0)
1638 		return pkgsrc_dir;
1639 	return set_is_source(set_name) ? set_dir_src : set_dir_bin;
1640 }
1641 
1642 const char *
1643 ext_dir_for_set(const char *set_name) {
1644 	if (strcmp(set_name, "pkgsrc") == 0)
1645 		return ext_dir_pkgsrc;
1646 	return set_is_source(set_name) ? ext_dir_src : ext_dir_bin;
1647 }
1648 
1649 void
1650 do_coloring(unsigned int fg, unsigned int bg) {
1651 	if (bg > COLOR_WHITE)
1652 		bg = COLOR_BLUE;
1653 	if (fg > COLOR_WHITE)
1654 		fg = COLOR_WHITE;
1655 	if (fg != bg && has_colors()) {
1656 		init_pair(1, fg, bg);
1657 		wbkgd(stdscr, COLOR_PAIR(1));
1658 		wbkgd(mainwin, COLOR_PAIR(1));
1659 		wattrset(stdscr, COLOR_PAIR(1));
1660 		wattrset(mainwin, COLOR_PAIR(1));
1661 	}
1662 	/* redraw screen */
1663 	touchwin(stdscr);
1664 	touchwin(mainwin);
1665 	wrefresh(stdscr);
1666 	wrefresh(mainwin);
1667 	return;
1668 }
1669 
1670 int
1671 set_menu_select(menudesc *m, void *arg)
1672 {
1673 	*(int *)arg = m->cursel;
1674 	return 1;
1675 }
1676 
1677 /*
1678  * check wether a binary is available somewhere in PATH,
1679  * return 1 if found, 0 if not.
1680  */
1681 int
1682 binary_available(const char *prog)
1683 {
1684         char *p, tmp[MAXPATHLEN], *path = getenv("PATH");
1685 
1686         if (path == NULL)
1687                 return access(prog, X_OK) == 0;
1688         path = strdup(path);
1689         if (path == NULL)
1690                 return 0;
1691 
1692         while ((p = strsep(&path, ":")) != NULL) {
1693                 if (strlcpy(tmp, p, MAXPATHLEN) >= MAXPATHLEN)
1694                         continue;
1695                 if (strlcat(tmp, "/", MAXPATHLEN) >= MAXPATHLEN)
1696                         continue;
1697                 if (strlcat(tmp, prog, MAXPATHLEN) >= MAXPATHLEN)
1698                         continue;
1699                 if (access(tmp, X_OK) == 0) {
1700                         free(path);
1701                         return 1;
1702                 }
1703         }
1704         free(path);
1705         return 0;
1706 }
1707 
1708 const char *
1709 safectime(time_t *t)
1710 {
1711 	const char *s = ctime(t);
1712 	if (s != NULL)
1713 		return s;
1714 
1715 	// Debugging.
1716 	fprintf(stderr, "Can't convert to localtime 0x%jx (%s)\n",
1717 	    (intmax_t)*t, strerror(errno));
1718 	      /*123456789012345678901234*/
1719 	return "preposterous clock time\n";
1720 }
1721 
1722 int
1723 ask_yesno(const char* msgtxt)
1724 {
1725 	arg_rv p;
1726 
1727 	p.arg = deconst(msgtxt);
1728 	p.rv = -1;
1729 
1730 	process_menu(MENU_yesno, &p);
1731 	return p.rv;
1732 }
1733 
1734 int
1735 ask_noyes(const char *msgtxt)
1736 {
1737 	arg_rv p;
1738 
1739 	p.arg = deconst(msgtxt);
1740 	p.rv = -1;
1741 
1742 	process_menu(MENU_noyes, &p);
1743 	return p.rv;
1744 }
1745