1/*-
2 * Copyright (c) 1994-1996 Søren Schmidt
3 * All rights reserved.
4 *
5 * Portions of this software are based in part on the work of
6 * Sascha Wildner <saw@online.de> contributed to The DragonFly Project
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer,
13 *    in this position and unchanged.
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 the author may not be used to endorse or promote products
18 *    derived from this software without specific prior written permission
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
23 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
29 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 *
31 * $DragonFly: src/usr.sbin/vidcontrol/vidcontrol.c,v 1.10 2005/03/02 06:08:29 joerg Exp $
32 */
33
34#ifndef lint
35static const char rcsid[] =
36  "$FreeBSD$";
37#endif /* not lint */
38
39#include <ctype.h>
40#include <err.h>
41#include <limits.h>
42#include <stdio.h>
43#include <stdlib.h>
44#include <string.h>
45#include <unistd.h>
46#include <sys/fbio.h>
47#include <sys/consio.h>
48#include <sys/endian.h>
49#include <sys/errno.h>
50#include <sys/param.h>
51#include <sys/types.h>
52#include <sys/stat.h>
53#include <sys/sysctl.h>
54#include "path.h"
55#include "decode.h"
56
57
58#define	DATASIZE(x)	((x).w * (x).h * 256 / 8)
59
60/* Screen dump modes */
61#define DUMP_FMT_RAW	1
62#define DUMP_FMT_TXT	2
63/* Screen dump options */
64#define DUMP_FBF	0
65#define DUMP_ALL	1
66/* Screen dump file format revision */
67#define DUMP_FMT_REV	1
68
69static const char *legal_colors[16] = {
70	"black", "blue", "green", "cyan",
71	"red", "magenta", "brown", "white",
72	"grey", "lightblue", "lightgreen", "lightcyan",
73	"lightred", "lightmagenta", "yellow", "lightwhite"
74};
75
76static struct {
77	int			active_vty;
78	vid_info_t		console_info;
79	unsigned char		screen_map[256];
80	int			video_mode_number;
81	struct video_info	video_mode_info;
82} cur_info;
83
84struct vt4font_header {
85	uint8_t		magic[8];
86	uint8_t		width;
87	uint8_t		height;
88	uint16_t	pad;
89	uint32_t	glyph_count;
90	uint32_t	map_count[4];
91} __packed;
92
93static int	hex = 0;
94static int	vesa_cols;
95static int	vesa_rows;
96static int	font_height;
97static int	colors_changed;
98static int	video_mode_changed;
99static int	normal_fore_color, normal_back_color;
100static int	revers_fore_color, revers_back_color;
101static int	vt4_mode = 0;
102static struct	vid_info info;
103static struct	video_info new_mode_info;
104
105
106/*
107 * Initialize revert data.
108 *
109 * NOTE: the following parameters are not yet saved/restored:
110 *
111 *   screen saver timeout
112 *   cursor type
113 *   mouse character and mouse show/hide state
114 *   vty switching on/off state
115 *   history buffer size
116 *   history contents
117 *   font maps
118 */
119
120static void
121init(void)
122{
123	if (ioctl(0, VT_GETACTIVE, &cur_info.active_vty) == -1)
124		errc(1, errno, "getting active vty");
125
126	cur_info.console_info.size = sizeof(cur_info.console_info);
127
128	if (ioctl(0, CONS_GETINFO, &cur_info.console_info) == -1)
129		errc(1, errno, "getting console information");
130
131	/* vt(4) use unicode, so no screen mapping required. */
132	if (vt4_mode == 0 &&
133	    ioctl(0, GIO_SCRNMAP, &cur_info.screen_map) == -1)
134		errc(1, errno, "getting screen map");
135
136	if (ioctl(0, CONS_GET, &cur_info.video_mode_number) == -1)
137		errc(1, errno, "getting video mode number");
138
139	cur_info.video_mode_info.vi_mode = cur_info.video_mode_number;
140
141	if (ioctl(0, CONS_MODEINFO, &cur_info.video_mode_info) == -1)
142		errc(1, errno, "getting video mode parameters");
143
144	normal_fore_color = cur_info.console_info.mv_norm.fore;
145	normal_back_color = cur_info.console_info.mv_norm.back;
146	revers_fore_color = cur_info.console_info.mv_rev.fore;
147	revers_back_color = cur_info.console_info.mv_rev.back;
148}
149
150
151/*
152 * If something goes wrong along the way we call revert() to go back to the
153 * console state we came from (which is assumed to be working).
154 *
155 * NOTE: please also read the comments of init().
156 */
157
158static void
159revert(void)
160{
161	int size[3];
162
163	ioctl(0, VT_ACTIVATE, cur_info.active_vty);
164
165	fprintf(stderr, "\033[=%dA", cur_info.console_info.mv_ovscan);
166	fprintf(stderr, "\033[=%dF", cur_info.console_info.mv_norm.fore);
167	fprintf(stderr, "\033[=%dG", cur_info.console_info.mv_norm.back);
168	fprintf(stderr, "\033[=%dH", cur_info.console_info.mv_rev.fore);
169	fprintf(stderr, "\033[=%dI", cur_info.console_info.mv_rev.back);
170
171	if (vt4_mode == 0)
172		ioctl(0, PIO_SCRNMAP, &cur_info.screen_map);
173
174	if (cur_info.video_mode_number >= M_VESA_BASE)
175		ioctl(0, _IO('V', cur_info.video_mode_number - M_VESA_BASE),
176		      NULL);
177	else
178		ioctl(0, _IO('S', cur_info.video_mode_number), NULL);
179
180	if (cur_info.video_mode_info.vi_flags & V_INFO_GRAPHICS) {
181		size[0] = cur_info.video_mode_info.vi_width / 8;
182		size[1] = cur_info.video_mode_info.vi_height /
183			  cur_info.console_info.font_size;
184		size[2] = cur_info.console_info.font_size;
185
186		ioctl(0, KDRASTER, size);
187	}
188}
189
190
191/*
192 * Print a short usage string describing all options, then exit.
193 */
194
195static void
196usage(void)
197{
198	if (vt4_mode)
199		fprintf(stderr, "%s\n%s\n%s\n%s\n%s\n",
200"usage: vidcontrol [-CHPpx] [-b color] [-c appearance] [-f [size] file]",
201"                  [-g geometry] [-h size] [-i adapter | mode]",
202"                  [-M char] [-m on | off] [-r foreground background]",
203"                  [-S on | off] [-s number] [-T xterm | cons25] [-t N | off]",
204"                  [mode] [foreground [background]] [show]");
205	else
206		fprintf(stderr, "%s\n%s\n%s\n%s\n%s\n",
207"usage: vidcontrol [-CdHLPpx] [-b color] [-c appearance] [-f [size] file]",
208"                  [-g geometry] [-h size] [-i adapter | mode] [-l screen_map]",
209"                  [-M char] [-m on | off] [-r foreground background]",
210"                  [-S on | off] [-s number] [-T xterm | cons25] [-t N | off]",
211"                  [mode] [foreground [background]] [show]");
212	exit(1);
213}
214
215/* Detect presence of vt(4). */
216static int
217is_vt4(void)
218{
219	char vty_name[4] = "";
220	size_t len = sizeof(vty_name);
221
222	if (sysctlbyname("kern.vty", vty_name, &len, NULL, 0) != 0)
223		return (0);
224	return (strcmp(vty_name, "vt") == 0);
225}
226
227/*
228 * Retrieve the next argument from the command line (for options that require
229 * more than one argument).
230 */
231
232static char *
233nextarg(int ac, char **av, int *indp, int oc, int strict)
234{
235	if (*indp < ac)
236		return(av[(*indp)++]);
237
238	if (strict != 0) {
239		revert();
240		errx(1, "option requires two arguments -- %c", oc);
241	}
242
243	return(NULL);
244}
245
246
247/*
248 * Guess which file to open. Try to open each combination of a specified set
249 * of file name components.
250 */
251
252static FILE *
253openguess(const char *a[], const char *b[], const char *c[], const char *d[], char **name)
254{
255	FILE *f;
256	int i, j, k, l;
257
258	for (i = 0; a[i] != NULL; i++) {
259		for (j = 0; b[j] != NULL; j++) {
260			for (k = 0; c[k] != NULL; k++) {
261				for (l = 0; d[l] != NULL; l++) {
262					asprintf(name, "%s%s%s%s",
263						 a[i], b[j], c[k], d[l]);
264
265					f = fopen(*name, "r");
266
267					if (f != NULL)
268						return (f);
269
270					free(*name);
271				}
272			}
273		}
274	}
275	return (NULL);
276}
277
278
279/*
280 * Load a screenmap from a file and set it.
281 */
282
283static void
284load_scrnmap(const char *filename)
285{
286	FILE *fd;
287	int size;
288	char *name;
289	scrmap_t scrnmap;
290	const char *a[] = {"", SCRNMAP_PATH, NULL};
291	const char *b[] = {filename, NULL};
292	const char *c[] = {"", ".scm", NULL};
293	const char *d[] = {"", NULL};
294
295	fd = openguess(a, b, c, d, &name);
296
297	if (fd == NULL) {
298		revert();
299		errx(1, "screenmap file not found");
300	}
301
302	size = sizeof(scrnmap);
303
304	if (decode(fd, (char *)&scrnmap, size) != size) {
305		rewind(fd);
306
307		if (fread(&scrnmap, 1, size, fd) != (size_t)size) {
308			warnx("bad screenmap file");
309			fclose(fd);
310			revert();
311			errx(1, "bad screenmap file");
312		}
313	}
314
315	if (ioctl(0, PIO_SCRNMAP, &scrnmap) == -1) {
316		revert();
317		errc(1, errno, "loading screenmap");
318	}
319
320	fclose(fd);
321}
322
323
324/*
325 * Set the default screenmap.
326 */
327
328static void
329load_default_scrnmap(void)
330{
331	scrmap_t scrnmap;
332	int i;
333
334	for (i=0; i<256; i++)
335		*((char*)&scrnmap + i) = i;
336
337	if (ioctl(0, PIO_SCRNMAP, &scrnmap) == -1) {
338		revert();
339		errc(1, errno, "loading default screenmap");
340	}
341}
342
343
344/*
345 * Print the current screenmap to stdout.
346 */
347
348static void
349print_scrnmap(void)
350{
351	unsigned char map[256];
352	size_t i;
353
354	if (ioctl(0, GIO_SCRNMAP, &map) == -1) {
355		revert();
356		errc(1, errno, "getting screenmap");
357	}
358	for (i=0; i<sizeof(map); i++) {
359		if (i != 0 && i % 16 == 0)
360			fprintf(stdout, "\n");
361
362		if (hex != 0)
363			fprintf(stdout, " %02x", map[i]);
364		else
365			fprintf(stdout, " %03d", map[i]);
366	}
367	fprintf(stdout, "\n");
368
369}
370
371
372/*
373 * Determine a file's size.
374 */
375
376static int
377fsize(FILE *file)
378{
379	struct stat sb;
380
381	if (fstat(fileno(file), &sb) == 0)
382		return sb.st_size;
383	else
384		return -1;
385}
386
387static vfnt_map_t *
388load_vt4mappingtable(unsigned int nmappings, FILE *f)
389{
390	vfnt_map_t *t;
391	unsigned int i;
392
393	if (nmappings == 0)
394		return (NULL);
395
396	t = malloc(sizeof *t * nmappings);
397
398	if (fread(t, sizeof *t * nmappings, 1, f) != 1) {
399		perror("mappings");
400		exit(1);
401	}
402
403	for (i = 0; i < nmappings; i++) {
404		t[i].src = be32toh(t[i].src);
405		t[i].dst = be16toh(t[i].dst);
406		t[i].len = be16toh(t[i].len);
407	}
408
409	return (t);
410}
411
412static int
413load_vt4font(FILE *f)
414{
415	struct vt4font_header fh;
416	static vfnt_t vfnt;
417	size_t glyphsize;
418	unsigned int i;
419
420	if (fread(&fh, sizeof fh, 1, f) != 1) {
421		perror("file_header");
422		return (1);
423	}
424
425	if (memcmp(fh.magic, "VFNT0002", 8) != 0) {
426		fprintf(stderr, "Bad magic\n");
427		return (1);
428	}
429
430	for (i = 0; i < VFNT_MAPS; i++)
431		vfnt.map_count[i] = be32toh(fh.map_count[i]);
432	vfnt.glyph_count = be32toh(fh.glyph_count);
433	vfnt.width = fh.width;
434	vfnt.height = fh.height;
435
436	glyphsize = howmany(vfnt.width, 8) * vfnt.height * vfnt.glyph_count;
437	vfnt.glyphs = malloc(glyphsize);
438
439	if (fread(vfnt.glyphs, glyphsize, 1, f) != 1) {
440		perror("glyphs");
441		return (1);
442	}
443
444	for (i = 0; i < VFNT_MAPS; i++)
445		vfnt.map[i] = load_vt4mappingtable(vfnt.map_count[i], f);
446
447	if (ioctl(STDIN_FILENO, PIO_VFONT, &vfnt) == -1) {
448		perror("PIO_VFONT");
449		return (1);
450	}
451	return (0);
452}
453
454/*
455 * Load a font from file and set it.
456 */
457
458static void
459load_font(const char *type, const char *filename)
460{
461	FILE	*fd;
462	int	h, i, size, w;
463	unsigned long io = 0;	/* silence stupid gcc(1) in the Wall mode */
464	char	*name, *fontmap, size_sufx[6];
465	const char	*a[] = {"", FONT_PATH, NULL};
466	const char	*vt4a[] = {"", VT_FONT_PATH, NULL};
467	const char	*b[] = {filename, NULL};
468	const char	*c[] = {"", size_sufx, NULL};
469	const char	*d[] = {"", ".fnt", NULL};
470	vid_info_t _info;
471
472	struct sizeinfo {
473		int w;
474		int h;
475		unsigned long io;
476	} sizes[] = {{8, 16, PIO_FONT8x16},
477		     {8, 14, PIO_FONT8x14},
478		     {8,  8,  PIO_FONT8x8},
479		     {0,  0,            0}};
480
481	if (vt4_mode) {
482		size_sufx[0] = '\0';
483	} else {
484		_info.size = sizeof(_info);
485		if (ioctl(0, CONS_GETINFO, &_info) == -1) {
486			revert();
487			warn("failed to obtain current video mode parameters");
488			return;
489		}
490
491		snprintf(size_sufx, sizeof(size_sufx), "-8x%d", _info.font_size);
492	}
493	fd = openguess((vt4_mode == 0) ? a : vt4a, b, c, d, &name);
494
495	if (fd == NULL) {
496		revert();
497		errx(1, "%s: can't load font file", filename);
498	}
499
500	if (vt4_mode) {
501		if(load_vt4font(fd))
502			warn("failed to load font \"%s\"", filename);
503		fclose(fd);
504		return;
505	}
506
507	if (type != NULL) {
508		size = 0;
509		if (sscanf(type, "%dx%d", &w, &h) == 2) {
510			for (i = 0; sizes[i].w != 0; i++) {
511				if (sizes[i].w == w && sizes[i].h == h) {
512					size = DATASIZE(sizes[i]);
513					io = sizes[i].io;
514					font_height = sizes[i].h;
515				}
516			}
517		}
518		if (size == 0) {
519			fclose(fd);
520			revert();
521			errx(1, "%s: bad font size specification", type);
522		}
523	} else {
524		/* Apply heuristics */
525
526		int j;
527		int dsize[2];
528
529		size = DATASIZE(sizes[0]);
530		fontmap = (char*) malloc(size);
531		dsize[0] = decode(fd, fontmap, size);
532		dsize[1] = fsize(fd);
533		free(fontmap);
534
535		size = 0;
536		for (j = 0; j < 2; j++) {
537			for (i = 0; sizes[i].w != 0; i++) {
538				if (DATASIZE(sizes[i]) == dsize[j]) {
539					size = dsize[j];
540					io = sizes[i].io;
541					font_height = sizes[i].h;
542					j = 2;	/* XXX */
543					break;
544				}
545			}
546		}
547
548		if (size == 0) {
549			fclose(fd);
550			revert();
551			errx(1, "%s: can't guess font size", filename);
552		}
553
554		rewind(fd);
555	}
556
557	fontmap = (char*) malloc(size);
558
559	if (decode(fd, fontmap, size) != size) {
560		rewind(fd);
561		if (fsize(fd) != size ||
562		    fread(fontmap, 1, size, fd) != (size_t)size) {
563			warnx("%s: bad font file", filename);
564			fclose(fd);
565			free(fontmap);
566			revert();
567			errx(1, "%s: bad font file", filename);
568		}
569	}
570
571	if (ioctl(0, io, fontmap) == -1) {
572		revert();
573		errc(1, errno, "loading font");
574	}
575
576	fclose(fd);
577	free(fontmap);
578}
579
580
581/*
582 * Set the timeout for the screensaver.
583 */
584
585static void
586set_screensaver_timeout(char *arg)
587{
588	int nsec;
589
590	if (!strcmp(arg, "off")) {
591		nsec = 0;
592	} else {
593		nsec = atoi(arg);
594
595		if ((*arg == '\0') || (nsec < 1)) {
596			revert();
597			errx(1, "argument must be a positive number");
598		}
599	}
600
601	if (ioctl(0, CONS_BLANKTIME, &nsec) == -1) {
602		revert();
603		errc(1, errno, "setting screensaver period");
604	}
605}
606
607
608/*
609 * Set the cursor's shape/type.
610 */
611
612static void
613set_cursor_type(char *appearance)
614{
615	int type;
616
617	if (!strcmp(appearance, "normal"))
618		type = 0;
619	else if (!strcmp(appearance, "blink"))
620		type = 1;
621	else if (!strcmp(appearance, "destructive"))
622		type = 3;
623	else {
624		revert();
625		errx(1, "argument to -c must be normal, blink or destructive");
626	}
627
628	if (ioctl(0, CONS_CURSORTYPE, &type) == -1) {
629		revert();
630		errc(1, errno, "setting cursor type");
631	}
632}
633
634
635/*
636 * Set the video mode.
637 */
638
639static int
640video_mode(int argc, char **argv, int *mode_index)
641{
642	static struct {
643		const char *name;
644		unsigned long mode;
645		unsigned long mode_num;
646	} modes[] = {
647		{ "80x25",        SW_TEXT_80x25,   M_TEXT_80x25 },
648		{ "80x30",        SW_TEXT_80x30,   M_TEXT_80x30 },
649		{ "80x43",        SW_TEXT_80x43,   M_TEXT_80x43 },
650		{ "80x50",        SW_TEXT_80x50,   M_TEXT_80x50 },
651		{ "80x60",        SW_TEXT_80x60,   M_TEXT_80x60 },
652		{ "132x25",       SW_TEXT_132x25,  M_TEXT_132x25 },
653		{ "132x30",       SW_TEXT_132x30,  M_TEXT_132x30 },
654		{ "132x43",       SW_TEXT_132x43,  M_TEXT_132x43 },
655		{ "132x50",       SW_TEXT_132x50,  M_TEXT_132x50 },
656		{ "132x60",       SW_TEXT_132x60,  M_TEXT_132x60 },
657		{ "VGA_40x25",    SW_VGA_C40x25,   M_VGA_C40x25 },
658		{ "VGA_80x25",    SW_VGA_C80x25,   M_VGA_C80x25 },
659		{ "VGA_80x30",    SW_VGA_C80x30,   M_VGA_C80x30 },
660		{ "VGA_80x50",    SW_VGA_C80x50,   M_VGA_C80x50 },
661		{ "VGA_80x60",    SW_VGA_C80x60,   M_VGA_C80x60 },
662#ifdef SW_VGA_C90x25
663		{ "VGA_90x25",    SW_VGA_C90x25,   M_VGA_C90x25 },
664		{ "VGA_90x30",    SW_VGA_C90x30,   M_VGA_C90x30 },
665		{ "VGA_90x43",    SW_VGA_C90x43,   M_VGA_C90x43 },
666		{ "VGA_90x50",    SW_VGA_C90x50,   M_VGA_C90x50 },
667		{ "VGA_90x60",    SW_VGA_C90x60,   M_VGA_C90x60 },
668#endif
669		{ "VGA_320x200",	SW_VGA_CG320,	M_CG320 },
670		{ "EGA_80x25",		SW_ENH_C80x25,	M_ENH_C80x25 },
671		{ "EGA_80x43",		SW_ENH_C80x43,	M_ENH_C80x43 },
672		{ "VESA_132x25",	SW_VESA_C132x25,M_VESA_C132x25 },
673		{ "VESA_132x43",	SW_VESA_C132x43,M_VESA_C132x43 },
674		{ "VESA_132x50",	SW_VESA_C132x50,M_VESA_C132x50 },
675		{ "VESA_132x60",	SW_VESA_C132x60,M_VESA_C132x60 },
676		{ "VESA_800x600",	SW_VESA_800x600,M_VESA_800x600 },
677		{ NULL, 0, 0 },
678	};
679
680	int new_mode_num = 0;
681	unsigned long mode = 0;
682	int cur_mode;
683	int ioerr;
684	int size[3];
685	int i;
686
687	if (ioctl(0, CONS_GET, &cur_mode) < 0)
688		err(1, "cannot get the current video mode");
689
690	/*
691	 * Parse the video mode argument...
692	 */
693
694	if (*mode_index < argc) {
695		if (!strncmp(argv[*mode_index], "MODE_", 5)) {
696			if (!isdigit(argv[*mode_index][5]))
697				errx(1, "invalid video mode number");
698
699			new_mode_num = atoi(&argv[*mode_index][5]);
700		} else {
701			for (i = 0; modes[i].name != NULL; ++i) {
702				if (!strcmp(argv[*mode_index], modes[i].name)) {
703					mode = modes[i].mode;
704					new_mode_num = modes[i].mode_num;
705					break;
706				}
707			}
708
709			if (modes[i].name == NULL)
710				return EXIT_FAILURE;
711			if (ioctl(0, mode, NULL) < 0) {
712				warn("cannot set videomode");
713				return EXIT_FAILURE;
714			}
715		}
716
717		/*
718		 * Collect enough information about the new video mode...
719		 */
720
721		new_mode_info.vi_mode = new_mode_num;
722
723		if (ioctl(0, CONS_MODEINFO, &new_mode_info) == -1) {
724			revert();
725			errc(1, errno, "obtaining new video mode parameters");
726		}
727
728		if (mode == 0) {
729			if (new_mode_num >= M_VESA_BASE)
730				mode = _IO('V', new_mode_num - M_VESA_BASE);
731			else
732				mode = _IO('S', new_mode_num);
733		}
734
735		/*
736		 * Try setting the new mode.
737		 */
738
739		if (ioctl(0, mode, NULL) == -1) {
740			revert();
741			errc(1, errno, "setting video mode");
742		}
743
744		/*
745		 * For raster modes it's not enough to just set the mode.
746		 * We also need to explicitly set the raster mode.
747		 */
748
749		if (new_mode_info.vi_flags & V_INFO_GRAPHICS) {
750			/* font size */
751
752			if (font_height == 0)
753				font_height = cur_info.console_info.font_size;
754
755			size[2] = font_height;
756
757			/* adjust columns */
758
759			if ((vesa_cols * 8 > new_mode_info.vi_width) ||
760			    (vesa_cols <= 0)) {
761				size[0] = new_mode_info.vi_width / 8;
762			} else {
763				size[0] = vesa_cols;
764			}
765
766			/* adjust rows */
767
768			if ((vesa_rows * font_height > new_mode_info.vi_height) ||
769			    (vesa_rows <= 0)) {
770				size[1] = new_mode_info.vi_height /
771					  font_height;
772			} else {
773				size[1] = vesa_rows;
774			}
775
776			/* set raster mode */
777
778			if (ioctl(0, KDRASTER, size)) {
779				ioerr = errno;
780				if (cur_mode >= M_VESA_BASE)
781					ioctl(0,
782					    _IO('V', cur_mode - M_VESA_BASE),
783					    NULL);
784				else
785					ioctl(0, _IO('S', cur_mode), NULL);
786				revert();
787				warnc(ioerr, "cannot activate raster display");
788				return EXIT_FAILURE;
789			}
790		}
791
792		video_mode_changed = 1;
793
794		(*mode_index)++;
795	}
796	return EXIT_SUCCESS;
797}
798
799
800/*
801 * Return the number for a specified color name.
802 */
803
804static int
805get_color_number(char *color)
806{
807	int i;
808
809	for (i=0; i<16; i++) {
810		if (!strcmp(color, legal_colors[i]))
811			return i;
812	}
813	return -1;
814}
815
816
817/*
818 * Get normal text and background colors.
819 */
820
821static void
822get_normal_colors(int argc, char **argv, int *_index)
823{
824	int color;
825
826	if (*_index < argc && (color = get_color_number(argv[*_index])) != -1) {
827		(*_index)++;
828		fprintf(stderr, "\033[=%dF", color);
829		normal_fore_color=color;
830		colors_changed = 1;
831		if (*_index < argc
832		    && (color = get_color_number(argv[*_index])) != -1
833		    && color < 8) {
834			(*_index)++;
835			fprintf(stderr, "\033[=%dG", color);
836			normal_back_color=color;
837		}
838	}
839}
840
841
842/*
843 * Get reverse text and background colors.
844 */
845
846static void
847get_reverse_colors(int argc, char **argv, int *_index)
848{
849	int color;
850
851	if ((color = get_color_number(argv[*(_index)-1])) != -1) {
852		fprintf(stderr, "\033[=%dH", color);
853		revers_fore_color=color;
854		colors_changed = 1;
855		if (*_index < argc
856		    && (color = get_color_number(argv[*_index])) != -1
857		    && color < 8) {
858			(*_index)++;
859			fprintf(stderr, "\033[=%dI", color);
860			revers_back_color=color;
861		}
862	}
863}
864
865
866/*
867 * Set normal and reverse foreground and background colors.
868 */
869
870static void
871set_colors(void)
872{
873	fprintf(stderr, "\033[=%dF", normal_fore_color);
874	fprintf(stderr, "\033[=%dG", normal_back_color);
875	fprintf(stderr, "\033[=%dH", revers_fore_color);
876	fprintf(stderr, "\033[=%dI", revers_back_color);
877}
878
879
880/*
881 * Switch to virtual terminal #arg.
882 */
883
884static void
885set_console(char *arg)
886{
887	int n;
888
889	if(!arg || strspn(arg,"0123456789") != strlen(arg)) {
890		revert();
891		errx(1, "bad console number");
892	}
893
894	n = atoi(arg);
895
896	if (n < 1 || n > 16) {
897		revert();
898		errx(1, "console number out of range");
899	} else if (ioctl(0, VT_ACTIVATE, n) == -1) {
900		revert();
901		errc(1, errno, "switching vty");
902	}
903}
904
905
906/*
907 * Sets the border color.
908 */
909
910static void
911set_border_color(char *arg)
912{
913	int color;
914
915	if ((color = get_color_number(arg)) != -1) {
916		fprintf(stderr, "\033[=%dA", color);
917	}
918	else
919		usage();
920}
921
922static void
923set_mouse_char(char *arg)
924{
925	struct mouse_info mouse;
926	long l;
927
928	l = strtol(arg, NULL, 0);
929
930	if ((l < 0) || (l > UCHAR_MAX - 3)) {
931		revert();
932		warnx("argument to -M must be 0 through %d", UCHAR_MAX - 3);
933		return;
934	}
935
936	mouse.operation = MOUSE_MOUSECHAR;
937	mouse.u.mouse_char = (int)l;
938
939	if (ioctl(0, CONS_MOUSECTL, &mouse) == -1) {
940		revert();
941		errc(1, errno, "setting mouse character");
942	}
943}
944
945
946/*
947 * Show/hide the mouse.
948 */
949
950static void
951set_mouse(char *arg)
952{
953	struct mouse_info mouse;
954
955	if (!strcmp(arg, "on")) {
956		mouse.operation = MOUSE_SHOW;
957	} else if (!strcmp(arg, "off")) {
958		mouse.operation = MOUSE_HIDE;
959	} else {
960		revert();
961		errx(1, "argument to -m must be either on or off");
962	}
963
964	if (ioctl(0, CONS_MOUSECTL, &mouse) == -1) {
965		revert();
966		errc(1, errno, "%sing the mouse",
967		     mouse.operation == MOUSE_SHOW ? "show" : "hid");
968	}
969}
970
971
972static void
973set_lockswitch(char *arg)
974{
975	int data;
976
977	if (!strcmp(arg, "off")) {
978		data = 0x01;
979	} else if (!strcmp(arg, "on")) {
980		data = 0x02;
981	} else {
982		revert();
983		errx(1, "argument to -S must be either on or off");
984	}
985
986	if (ioctl(0, VT_LOCKSWITCH, &data) == -1) {
987		revert();
988		errc(1, errno, "turning %s vty switching",
989		     data == 0x01 ? "off" : "on");
990	}
991}
992
993
994/*
995 * Return the adapter name for a specified type.
996 */
997
998static const char
999*adapter_name(int type)
1000{
1001    static struct {
1002	int type;
1003	const char *name;
1004    } names[] = {
1005	{ KD_MONO,	"MDA" },
1006	{ KD_HERCULES,	"Hercules" },
1007	{ KD_CGA,	"CGA" },
1008	{ KD_EGA,	"EGA" },
1009	{ KD_VGA,	"VGA" },
1010	{ KD_PC98,	"PC-98xx" },
1011	{ KD_TGA,	"TGA" },
1012	{ -1,		"Unknown" },
1013    };
1014
1015    int i;
1016
1017    for (i = 0; names[i].type != -1; ++i)
1018	if (names[i].type == type)
1019	    break;
1020    return names[i].name;
1021}
1022
1023
1024/*
1025 * Show graphics adapter information.
1026 */
1027
1028static void
1029show_adapter_info(void)
1030{
1031	struct video_adapter_info ad;
1032
1033	ad.va_index = 0;
1034
1035	if (ioctl(0, CONS_ADPINFO, &ad) == -1) {
1036		revert();
1037		errc(1, errno, "obtaining adapter information");
1038	}
1039
1040	printf("fb%d:\n", ad.va_index);
1041	printf("    %.*s%d, type:%s%s (%d), flags:0x%x\n",
1042	       (int)sizeof(ad.va_name), ad.va_name, ad.va_unit,
1043	       (ad.va_flags & V_ADP_VESA) ? "VESA " : "",
1044	       adapter_name(ad.va_type), ad.va_type, ad.va_flags);
1045	printf("    initial mode:%d, current mode:%d, BIOS mode:%d\n",
1046	       ad.va_initial_mode, ad.va_mode, ad.va_initial_bios_mode);
1047	printf("    frame buffer window:0x%zx, buffer size:0x%zx\n",
1048	       ad.va_window, ad.va_buffer_size);
1049	printf("    window size:0x%zx, origin:0x%x\n",
1050	       ad.va_window_size, ad.va_window_orig);
1051	printf("    display start address (%d, %d), scan line width:%d\n",
1052	       ad.va_disp_start.x, ad.va_disp_start.y, ad.va_line_width);
1053	printf("    reserved:0x%zx\n", ad.va_unused0);
1054}
1055
1056
1057/*
1058 * Show video mode information.
1059 */
1060
1061static void
1062show_mode_info(void)
1063{
1064	char buf[80];
1065	struct video_info _info;
1066	int c;
1067	int mm;
1068	int mode;
1069
1070	printf("    mode#     flags   type    size       "
1071	       "font      window      linear buffer\n");
1072	printf("---------------------------------------"
1073	       "---------------------------------------\n");
1074
1075	for (mode = 0; mode <= M_VESA_MODE_MAX; ++mode) {
1076		_info.vi_mode = mode;
1077		if (ioctl(0, CONS_MODEINFO, &_info))
1078			continue;
1079		if (_info.vi_mode != mode)
1080			continue;
1081
1082		printf("%3d (0x%03x)", mode, mode);
1083    		printf(" 0x%08x", _info.vi_flags);
1084		if (_info.vi_flags & V_INFO_GRAPHICS) {
1085			c = 'G';
1086
1087			if (_info.vi_mem_model == V_INFO_MM_PLANAR)
1088				snprintf(buf, sizeof(buf), "%dx%dx%d %d",
1089				    _info.vi_width, _info.vi_height,
1090				    _info.vi_depth, _info.vi_planes);
1091			else {
1092				switch (_info.vi_mem_model) {
1093				case V_INFO_MM_PACKED:
1094					mm = 'P';
1095					break;
1096				case V_INFO_MM_DIRECT:
1097					mm = 'D';
1098					break;
1099				case V_INFO_MM_CGA:
1100					mm = 'C';
1101					break;
1102				case V_INFO_MM_HGC:
1103					mm = 'H';
1104					break;
1105				case V_INFO_MM_VGAX:
1106					mm = 'V';
1107					break;
1108				default:
1109					mm = ' ';
1110					break;
1111				}
1112				snprintf(buf, sizeof(buf), "%dx%dx%d %c",
1113				    _info.vi_width, _info.vi_height,
1114				    _info.vi_depth, mm);
1115			}
1116		} else {
1117			c = 'T';
1118
1119			snprintf(buf, sizeof(buf), "%dx%d",
1120				 _info.vi_width, _info.vi_height);
1121		}
1122
1123		printf(" %c %-15s", c, buf);
1124		snprintf(buf, sizeof(buf), "%dx%d",
1125			 _info.vi_cwidth, _info.vi_cheight);
1126		printf(" %-5s", buf);
1127    		printf(" 0x%05zx %2dk %2dk",
1128		       _info.vi_window, (int)_info.vi_window_size/1024,
1129		       (int)_info.vi_window_gran/1024);
1130    		printf(" 0x%08zx %dk\n",
1131		       _info.vi_buffer, (int)_info.vi_buffer_size/1024);
1132	}
1133}
1134
1135
1136static void
1137show_info(char *arg)
1138{
1139	if (!strcmp(arg, "adapter")) {
1140		show_adapter_info();
1141	} else if (!strcmp(arg, "mode")) {
1142		show_mode_info();
1143	} else {
1144		revert();
1145		errx(1, "argument to -i must be either adapter or mode");
1146	}
1147}
1148
1149
1150static void
1151test_frame(void)
1152{
1153	int i, cur_mode, fore;
1154
1155	fore = 15;
1156
1157	if (ioctl(0, CONS_GET, &cur_mode) < 0)
1158		err(1, "must be on a virtual console");
1159	switch (cur_mode) {
1160	case M_PC98_80x25:
1161	case M_PC98_80x30:
1162		fore = 7;
1163		break;
1164	}
1165
1166	fprintf(stdout, "\033[=0G\n\n");
1167	for (i=0; i<8; i++) {
1168		fprintf(stdout, "\033[=%dF\033[=0G        %2d \033[=%dF%-16s"
1169				"\033[=%dF\033[=0G        %2d \033[=%dF%-16s        "
1170				"\033[=%dF %2d \033[=%dGBACKGROUND\033[=0G\n",
1171			fore, i, i, legal_colors[i],
1172			fore, i+8, i+8, legal_colors[i+8],
1173			fore, i, i);
1174	}
1175	fprintf(stdout, "\033[=%dF\033[=%dG\033[=%dH\033[=%dI\n",
1176		info.mv_norm.fore, info.mv_norm.back,
1177		info.mv_rev.fore, info.mv_rev.back);
1178}
1179
1180
1181/*
1182 * Snapshot the video memory of that terminal, using the CONS_SCRSHOT
1183 * ioctl, and writes the results to stdout either in the special
1184 * binary format (see manual page for details), or in the plain
1185 * text format.
1186 */
1187
1188static void
1189dump_screen(int mode, int opt)
1190{
1191	scrshot_t shot;
1192	vid_info_t _info;
1193
1194	_info.size = sizeof(_info);
1195
1196	if (ioctl(0, CONS_GETINFO, &_info) == -1) {
1197		revert();
1198		errc(1, errno, "obtaining current video mode parameters");
1199		return;
1200	}
1201
1202	shot.x = shot.y = 0;
1203	shot.xsize = _info.mv_csz;
1204	shot.ysize = _info.mv_rsz;
1205	if (opt == DUMP_ALL)
1206		shot.ysize += _info.mv_hsz;
1207
1208	shot.buf = alloca(shot.xsize * shot.ysize * sizeof(u_int16_t));
1209	if (shot.buf == NULL) {
1210		revert();
1211		errx(1, "failed to allocate memory for dump");
1212	}
1213
1214	if (ioctl(0, CONS_SCRSHOT, &shot) == -1) {
1215		revert();
1216		errc(1, errno, "dumping screen");
1217	}
1218
1219	if (mode == DUMP_FMT_RAW) {
1220		printf("SCRSHOT_%c%c%c%c", DUMP_FMT_REV, 2,
1221		       shot.xsize, shot.ysize);
1222
1223		fflush(stdout);
1224
1225		write(STDOUT_FILENO, shot.buf,
1226		      shot.xsize * shot.ysize * sizeof(u_int16_t));
1227	} else {
1228		char *line;
1229		int x, y;
1230		u_int16_t ch;
1231
1232		line = alloca(shot.xsize + 1);
1233
1234		if (line == NULL) {
1235			revert();
1236			errx(1, "failed to allocate memory for line buffer");
1237		}
1238
1239		for (y = 0; y < shot.ysize; y++) {
1240			for (x = 0; x < shot.xsize; x++) {
1241				ch = shot.buf[x + (y * shot.xsize)];
1242				ch &= 0xff;
1243
1244				if (isprint(ch) == 0)
1245					ch = ' ';
1246
1247				line[x] = (char)ch;
1248			}
1249
1250			/* Trim trailing spaces */
1251
1252			do {
1253				line[x--] = '\0';
1254			} while (line[x] == ' ' && x != 0);
1255
1256			puts(line);
1257		}
1258
1259		fflush(stdout);
1260	}
1261}
1262
1263
1264/*
1265 * Set the console history buffer size.
1266 */
1267
1268static void
1269set_history(char *opt)
1270{
1271	int size;
1272
1273	size = atoi(opt);
1274
1275	if ((*opt == '\0') || size < 0) {
1276		revert();
1277		errx(1, "argument must be a positive number");
1278	}
1279
1280	if (ioctl(0, CONS_HISTORY, &size) == -1) {
1281		revert();
1282		errc(1, errno, "setting history buffer size");
1283	}
1284}
1285
1286
1287/*
1288 * Clear the console history buffer.
1289 */
1290
1291static void
1292clear_history(void)
1293{
1294	if (ioctl(0, CONS_CLRHIST) == -1) {
1295		revert();
1296		errc(1, errno, "clearing history buffer");
1297	}
1298}
1299
1300static void
1301set_terminal_mode(char *arg)
1302{
1303
1304	if (strcmp(arg, "xterm") == 0)
1305		fprintf(stderr, "\033[=T");
1306	else if (strcmp(arg, "cons25") == 0)
1307		fprintf(stderr, "\033[=1T");
1308}
1309
1310
1311int
1312main(int argc, char **argv)
1313{
1314	char    *font, *type, *termmode;
1315	const char *opts;
1316	int	dumpmod, dumpopt, opt;
1317	int	reterr;
1318
1319	vt4_mode = is_vt4();
1320
1321	init();
1322
1323	info.size = sizeof(info);
1324
1325	if (ioctl(0, CONS_GETINFO, &info) == -1)
1326		err(1, "must be on a virtual console");
1327	dumpmod = 0;
1328	dumpopt = DUMP_FBF;
1329	termmode = NULL;
1330	if (vt4_mode)
1331		opts = "b:Cc:f:g:h:Hi:M:m:pPr:S:s:T:t:x";
1332	else
1333		opts = "b:Cc:df:g:h:Hi:l:LM:m:pPr:S:s:T:t:x";
1334
1335	while ((opt = getopt(argc, argv, opts)) != -1)
1336		switch(opt) {
1337		case 'b':
1338			set_border_color(optarg);
1339			break;
1340		case 'C':
1341			clear_history();
1342			break;
1343		case 'c':
1344			set_cursor_type(optarg);
1345			break;
1346		case 'd':
1347			if (vt4_mode)
1348				break;
1349			print_scrnmap();
1350			break;
1351		case 'f':
1352			type = optarg;
1353			font = nextarg(argc, argv, &optind, 'f', 0);
1354
1355			if (font == NULL) {
1356				type = NULL;
1357				font = optarg;
1358			}
1359
1360			load_font(type, font);
1361			break;
1362		case 'g':
1363			if (sscanf(optarg, "%dx%d",
1364			    &vesa_cols, &vesa_rows) != 2) {
1365				revert();
1366				warnx("incorrect geometry: %s", optarg);
1367				usage();
1368			}
1369                	break;
1370		case 'h':
1371			set_history(optarg);
1372			break;
1373		case 'H':
1374			dumpopt = DUMP_ALL;
1375			break;
1376		case 'i':
1377			show_info(optarg);
1378			break;
1379		case 'l':
1380			if (vt4_mode)
1381				break;
1382			load_scrnmap(optarg);
1383			break;
1384		case 'L':
1385			if (vt4_mode)
1386				break;
1387			load_default_scrnmap();
1388			break;
1389		case 'M':
1390			set_mouse_char(optarg);
1391			break;
1392		case 'm':
1393			set_mouse(optarg);
1394			break;
1395		case 'p':
1396			dumpmod = DUMP_FMT_RAW;
1397			break;
1398		case 'P':
1399			dumpmod = DUMP_FMT_TXT;
1400			break;
1401		case 'r':
1402			get_reverse_colors(argc, argv, &optind);
1403			break;
1404		case 'S':
1405			set_lockswitch(optarg);
1406			break;
1407		case 's':
1408			set_console(optarg);
1409			break;
1410		case 'T':
1411			if (strcmp(optarg, "xterm") != 0 &&
1412			    strcmp(optarg, "cons25") != 0)
1413				usage();
1414			termmode = optarg;
1415			break;
1416		case 't':
1417			set_screensaver_timeout(optarg);
1418			break;
1419		case 'x':
1420			hex = 1;
1421			break;
1422		default:
1423			usage();
1424		}
1425
1426	if (dumpmod != 0)
1427		dump_screen(dumpmod, dumpopt);
1428	reterr = video_mode(argc, argv, &optind);
1429	get_normal_colors(argc, argv, &optind);
1430
1431	if (optind < argc && !strcmp(argv[optind], "show")) {
1432		test_frame();
1433		optind++;
1434	}
1435
1436	video_mode(argc, argv, &optind);
1437	if (termmode != NULL)
1438		set_terminal_mode(termmode);
1439
1440	get_normal_colors(argc, argv, &optind);
1441
1442	if (colors_changed || video_mode_changed) {
1443		if (!(new_mode_info.vi_flags & V_INFO_GRAPHICS)) {
1444			if ((normal_back_color < 8) && (revers_back_color < 8)) {
1445				set_colors();
1446			} else {
1447				revert();
1448				errx(1, "bg color for text modes must be < 8");
1449			}
1450		} else {
1451			set_colors();
1452		}
1453	}
1454
1455	if ((optind != argc) || (argc == 1))
1456		usage();
1457	return reterr;
1458}
1459
1460