vidcontrol.c revision 273921 
1/*-
2 * Copyright (c) 1994-1996 S��ren 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: stable/10/usr.sbin/vidcontrol/vidcontrol.c 273921 2014-10-31 23:10:58Z dumbbell $";
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
412/*
413 * Set the default vt font.
414 */
415
416static void
417load_default_vt4font(void)
418{
419	if (ioctl(0, PIO_VFONT_DEFAULT) == -1) {
420		revert();
421		errc(1, errno, "loading default vt font");
422	}
423}
424
425static int
426load_vt4font(FILE *f)
427{
428	struct vt4font_header fh;
429	static vfnt_t vfnt;
430	size_t glyphsize;
431	unsigned int i;
432
433	if (fread(&fh, sizeof fh, 1, f) != 1) {
434		perror("file_header");
435		return (1);
436	}
437
438	if (memcmp(fh.magic, "VFNT0002", 8) != 0) {
439		fprintf(stderr, "Bad magic\n");
440		return (1);
441	}
442
443	for (i = 0; i < VFNT_MAPS; i++)
444		vfnt.map_count[i] = be32toh(fh.map_count[i]);
445	vfnt.glyph_count = be32toh(fh.glyph_count);
446	vfnt.width = fh.width;
447	vfnt.height = fh.height;
448
449	glyphsize = howmany(vfnt.width, 8) * vfnt.height * vfnt.glyph_count;
450	vfnt.glyphs = malloc(glyphsize);
451
452	if (fread(vfnt.glyphs, glyphsize, 1, f) != 1) {
453		perror("glyphs");
454		return (1);
455	}
456
457	for (i = 0; i < VFNT_MAPS; i++)
458		vfnt.map[i] = load_vt4mappingtable(vfnt.map_count[i], f);
459
460	if (ioctl(STDIN_FILENO, PIO_VFONT, &vfnt) == -1) {
461		perror("PIO_VFONT");
462		return (1);
463	}
464	return (0);
465}
466
467/*
468 * Load a font from file and set it.
469 */
470
471static void
472load_font(const char *type, const char *filename)
473{
474	FILE	*fd;
475	int	h, i, size, w;
476	unsigned long io = 0;	/* silence stupid gcc(1) in the Wall mode */
477	char	*name, *fontmap, size_sufx[6];
478	const char	*a[] = {"", FONT_PATH, NULL};
479	const char	*vt4a[] = {"", VT_FONT_PATH, NULL};
480	const char	*b[] = {filename, NULL};
481	const char	*c[] = {"", size_sufx, NULL};
482	const char	*d[] = {"", ".fnt", NULL};
483	vid_info_t _info;
484
485	struct sizeinfo {
486		int w;
487		int h;
488		unsigned long io;
489	} sizes[] = {{8, 16, PIO_FONT8x16},
490		     {8, 14, PIO_FONT8x14},
491		     {8,  8,  PIO_FONT8x8},
492		     {0,  0,            0}};
493
494	if (vt4_mode) {
495		size_sufx[0] = '\0';
496	} else {
497		_info.size = sizeof(_info);
498		if (ioctl(0, CONS_GETINFO, &_info) == -1) {
499			revert();
500			warn("failed to obtain current video mode parameters");
501			return;
502		}
503
504		snprintf(size_sufx, sizeof(size_sufx), "-8x%d", _info.font_size);
505	}
506	fd = openguess((vt4_mode == 0) ? a : vt4a, b, c, d, &name);
507
508	if (fd == NULL) {
509		revert();
510		errx(1, "%s: can't load font file", filename);
511	}
512
513	if (vt4_mode) {
514		if(load_vt4font(fd))
515			warn("failed to load font \"%s\"", filename);
516		fclose(fd);
517		return;
518	}
519
520	if (type != NULL) {
521		size = 0;
522		if (sscanf(type, "%dx%d", &w, &h) == 2) {
523			for (i = 0; sizes[i].w != 0; i++) {
524				if (sizes[i].w == w && sizes[i].h == h) {
525					size = DATASIZE(sizes[i]);
526					io = sizes[i].io;
527					font_height = sizes[i].h;
528				}
529			}
530		}
531		if (size == 0) {
532			fclose(fd);
533			revert();
534			errx(1, "%s: bad font size specification", type);
535		}
536	} else {
537		/* Apply heuristics */
538
539		int j;
540		int dsize[2];
541
542		size = DATASIZE(sizes[0]);
543		fontmap = (char*) malloc(size);
544		dsize[0] = decode(fd, fontmap, size);
545		dsize[1] = fsize(fd);
546		free(fontmap);
547
548		size = 0;
549		for (j = 0; j < 2; j++) {
550			for (i = 0; sizes[i].w != 0; i++) {
551				if (DATASIZE(sizes[i]) == dsize[j]) {
552					size = dsize[j];
553					io = sizes[i].io;
554					font_height = sizes[i].h;
555					j = 2;	/* XXX */
556					break;
557				}
558			}
559		}
560
561		if (size == 0) {
562			fclose(fd);
563			revert();
564			errx(1, "%s: can't guess font size", filename);
565		}
566
567		rewind(fd);
568	}
569
570	fontmap = (char*) malloc(size);
571
572	if (decode(fd, fontmap, size) != size) {
573		rewind(fd);
574		if (fsize(fd) != size ||
575		    fread(fontmap, 1, size, fd) != (size_t)size) {
576			warnx("%s: bad font file", filename);
577			fclose(fd);
578			free(fontmap);
579			revert();
580			errx(1, "%s: bad font file", filename);
581		}
582	}
583
584	if (ioctl(0, io, fontmap) == -1) {
585		revert();
586		errc(1, errno, "loading font");
587	}
588
589	fclose(fd);
590	free(fontmap);
591}
592
593
594/*
595 * Set the timeout for the screensaver.
596 */
597
598static void
599set_screensaver_timeout(char *arg)
600{
601	int nsec;
602
603	if (!strcmp(arg, "off")) {
604		nsec = 0;
605	} else {
606		nsec = atoi(arg);
607
608		if ((*arg == '\0') || (nsec < 1)) {
609			revert();
610			errx(1, "argument must be a positive number");
611		}
612	}
613
614	if (ioctl(0, CONS_BLANKTIME, &nsec) == -1) {
615		revert();
616		errc(1, errno, "setting screensaver period");
617	}
618}
619
620
621/*
622 * Set the cursor's shape/type.
623 */
624
625static void
626set_cursor_type(char *appearance)
627{
628	int type;
629
630	if (!strcmp(appearance, "normal"))
631		type = 0;
632	else if (!strcmp(appearance, "blink"))
633		type = 1;
634	else if (!strcmp(appearance, "destructive"))
635		type = 3;
636	else {
637		revert();
638		errx(1, "argument to -c must be normal, blink or destructive");
639	}
640
641	if (ioctl(0, CONS_CURSORTYPE, &type) == -1) {
642		revert();
643		errc(1, errno, "setting cursor type");
644	}
645}
646
647
648/*
649 * Set the video mode.
650 */
651
652static int
653video_mode(int argc, char **argv, int *mode_index)
654{
655	static struct {
656		const char *name;
657		unsigned long mode;
658		unsigned long mode_num;
659	} modes[] = {
660		{ "80x25",        SW_TEXT_80x25,   M_TEXT_80x25 },
661		{ "80x30",        SW_TEXT_80x30,   M_TEXT_80x30 },
662		{ "80x43",        SW_TEXT_80x43,   M_TEXT_80x43 },
663		{ "80x50",        SW_TEXT_80x50,   M_TEXT_80x50 },
664		{ "80x60",        SW_TEXT_80x60,   M_TEXT_80x60 },
665		{ "132x25",       SW_TEXT_132x25,  M_TEXT_132x25 },
666		{ "132x30",       SW_TEXT_132x30,  M_TEXT_132x30 },
667		{ "132x43",       SW_TEXT_132x43,  M_TEXT_132x43 },
668		{ "132x50",       SW_TEXT_132x50,  M_TEXT_132x50 },
669		{ "132x60",       SW_TEXT_132x60,  M_TEXT_132x60 },
670		{ "VGA_40x25",    SW_VGA_C40x25,   M_VGA_C40x25 },
671		{ "VGA_80x25",    SW_VGA_C80x25,   M_VGA_C80x25 },
672		{ "VGA_80x30",    SW_VGA_C80x30,   M_VGA_C80x30 },
673		{ "VGA_80x50",    SW_VGA_C80x50,   M_VGA_C80x50 },
674		{ "VGA_80x60",    SW_VGA_C80x60,   M_VGA_C80x60 },
675#ifdef SW_VGA_C90x25
676		{ "VGA_90x25",    SW_VGA_C90x25,   M_VGA_C90x25 },
677		{ "VGA_90x30",    SW_VGA_C90x30,   M_VGA_C90x30 },
678		{ "VGA_90x43",    SW_VGA_C90x43,   M_VGA_C90x43 },
679		{ "VGA_90x50",    SW_VGA_C90x50,   M_VGA_C90x50 },
680		{ "VGA_90x60",    SW_VGA_C90x60,   M_VGA_C90x60 },
681#endif
682		{ "VGA_320x200",	SW_VGA_CG320,	M_CG320 },
683		{ "EGA_80x25",		SW_ENH_C80x25,	M_ENH_C80x25 },
684		{ "EGA_80x43",		SW_ENH_C80x43,	M_ENH_C80x43 },
685		{ "VESA_132x25",	SW_VESA_C132x25,M_VESA_C132x25 },
686		{ "VESA_132x43",	SW_VESA_C132x43,M_VESA_C132x43 },
687		{ "VESA_132x50",	SW_VESA_C132x50,M_VESA_C132x50 },
688		{ "VESA_132x60",	SW_VESA_C132x60,M_VESA_C132x60 },
689		{ "VESA_800x600",	SW_VESA_800x600,M_VESA_800x600 },
690		{ NULL, 0, 0 },
691	};
692
693	int new_mode_num = 0;
694	unsigned long mode = 0;
695	int cur_mode;
696	int ioerr;
697	int size[3];
698	int i;
699
700	if (ioctl(0, CONS_GET, &cur_mode) < 0)
701		err(1, "cannot get the current video mode");
702
703	/*
704	 * Parse the video mode argument...
705	 */
706
707	if (*mode_index < argc) {
708		if (!strncmp(argv[*mode_index], "MODE_", 5)) {
709			if (!isdigit(argv[*mode_index][5]))
710				errx(1, "invalid video mode number");
711
712			new_mode_num = atoi(&argv[*mode_index][5]);
713		} else {
714			for (i = 0; modes[i].name != NULL; ++i) {
715				if (!strcmp(argv[*mode_index], modes[i].name)) {
716					mode = modes[i].mode;
717					new_mode_num = modes[i].mode_num;
718					break;
719				}
720			}
721
722			if (modes[i].name == NULL)
723				return EXIT_FAILURE;
724			if (ioctl(0, mode, NULL) < 0) {
725				warn("cannot set videomode");
726				return EXIT_FAILURE;
727			}
728		}
729
730		/*
731		 * Collect enough information about the new video mode...
732		 */
733
734		new_mode_info.vi_mode = new_mode_num;
735
736		if (ioctl(0, CONS_MODEINFO, &new_mode_info) == -1) {
737			revert();
738			errc(1, errno, "obtaining new video mode parameters");
739		}
740
741		if (mode == 0) {
742			if (new_mode_num >= M_VESA_BASE)
743				mode = _IO('V', new_mode_num - M_VESA_BASE);
744			else
745				mode = _IO('S', new_mode_num);
746		}
747
748		/*
749		 * Try setting the new mode.
750		 */
751
752		if (ioctl(0, mode, NULL) == -1) {
753			revert();
754			errc(1, errno, "setting video mode");
755		}
756
757		/*
758		 * For raster modes it's not enough to just set the mode.
759		 * We also need to explicitly set the raster mode.
760		 */
761
762		if (new_mode_info.vi_flags & V_INFO_GRAPHICS) {
763			/* font size */
764
765			if (font_height == 0)
766				font_height = cur_info.console_info.font_size;
767
768			size[2] = font_height;
769
770			/* adjust columns */
771
772			if ((vesa_cols * 8 > new_mode_info.vi_width) ||
773			    (vesa_cols <= 0)) {
774				size[0] = new_mode_info.vi_width / 8;
775			} else {
776				size[0] = vesa_cols;
777			}
778
779			/* adjust rows */
780
781			if ((vesa_rows * font_height > new_mode_info.vi_height) ||
782			    (vesa_rows <= 0)) {
783				size[1] = new_mode_info.vi_height /
784					  font_height;
785			} else {
786				size[1] = vesa_rows;
787			}
788
789			/* set raster mode */
790
791			if (ioctl(0, KDRASTER, size)) {
792				ioerr = errno;
793				if (cur_mode >= M_VESA_BASE)
794					ioctl(0,
795					    _IO('V', cur_mode - M_VESA_BASE),
796					    NULL);
797				else
798					ioctl(0, _IO('S', cur_mode), NULL);
799				revert();
800				warnc(ioerr, "cannot activate raster display");
801				return EXIT_FAILURE;
802			}
803		}
804
805		video_mode_changed = 1;
806
807		(*mode_index)++;
808	}
809	return EXIT_SUCCESS;
810}
811
812
813/*
814 * Return the number for a specified color name.
815 */
816
817static int
818get_color_number(char *color)
819{
820	int i;
821
822	for (i=0; i<16; i++) {
823		if (!strcmp(color, legal_colors[i]))
824			return i;
825	}
826	return -1;
827}
828
829
830/*
831 * Get normal text and background colors.
832 */
833
834static void
835get_normal_colors(int argc, char **argv, int *_index)
836{
837	int color;
838
839	if (*_index < argc && (color = get_color_number(argv[*_index])) != -1) {
840		(*_index)++;
841		fprintf(stderr, "\033[=%dF", color);
842		normal_fore_color=color;
843		colors_changed = 1;
844		if (*_index < argc
845		    && (color = get_color_number(argv[*_index])) != -1
846		    && color < 8) {
847			(*_index)++;
848			fprintf(stderr, "\033[=%dG", color);
849			normal_back_color=color;
850		}
851	}
852}
853
854
855/*
856 * Get reverse text and background colors.
857 */
858
859static void
860get_reverse_colors(int argc, char **argv, int *_index)
861{
862	int color;
863
864	if ((color = get_color_number(argv[*(_index)-1])) != -1) {
865		fprintf(stderr, "\033[=%dH", color);
866		revers_fore_color=color;
867		colors_changed = 1;
868		if (*_index < argc
869		    && (color = get_color_number(argv[*_index])) != -1
870		    && color < 8) {
871			(*_index)++;
872			fprintf(stderr, "\033[=%dI", color);
873			revers_back_color=color;
874		}
875	}
876}
877
878
879/*
880 * Set normal and reverse foreground and background colors.
881 */
882
883static void
884set_colors(void)
885{
886	fprintf(stderr, "\033[=%dF", normal_fore_color);
887	fprintf(stderr, "\033[=%dG", normal_back_color);
888	fprintf(stderr, "\033[=%dH", revers_fore_color);
889	fprintf(stderr, "\033[=%dI", revers_back_color);
890}
891
892
893/*
894 * Switch to virtual terminal #arg.
895 */
896
897static void
898set_console(char *arg)
899{
900	int n;
901
902	if(!arg || strspn(arg,"0123456789") != strlen(arg)) {
903		revert();
904		errx(1, "bad console number");
905	}
906
907	n = atoi(arg);
908
909	if (n < 1 || n > 16) {
910		revert();
911		errx(1, "console number out of range");
912	} else if (ioctl(0, VT_ACTIVATE, n) == -1) {
913		revert();
914		errc(1, errno, "switching vty");
915	}
916}
917
918
919/*
920 * Sets the border color.
921 */
922
923static void
924set_border_color(char *arg)
925{
926	int color;
927
928	if ((color = get_color_number(arg)) != -1) {
929		fprintf(stderr, "\033[=%dA", color);
930	}
931	else
932		usage();
933}
934
935static void
936set_mouse_char(char *arg)
937{
938	struct mouse_info mouse;
939	long l;
940
941	l = strtol(arg, NULL, 0);
942
943	if ((l < 0) || (l > UCHAR_MAX - 3)) {
944		revert();
945		warnx("argument to -M must be 0 through %d", UCHAR_MAX - 3);
946		return;
947	}
948
949	mouse.operation = MOUSE_MOUSECHAR;
950	mouse.u.mouse_char = (int)l;
951
952	if (ioctl(0, CONS_MOUSECTL, &mouse) == -1) {
953		revert();
954		errc(1, errno, "setting mouse character");
955	}
956}
957
958
959/*
960 * Show/hide the mouse.
961 */
962
963static void
964set_mouse(char *arg)
965{
966	struct mouse_info mouse;
967
968	if (!strcmp(arg, "on")) {
969		mouse.operation = MOUSE_SHOW;
970	} else if (!strcmp(arg, "off")) {
971		mouse.operation = MOUSE_HIDE;
972	} else {
973		revert();
974		errx(1, "argument to -m must be either on or off");
975	}
976
977	if (ioctl(0, CONS_MOUSECTL, &mouse) == -1) {
978		revert();
979		errc(1, errno, "%sing the mouse",
980		     mouse.operation == MOUSE_SHOW ? "show" : "hid");
981	}
982}
983
984
985static void
986set_lockswitch(char *arg)
987{
988	int data;
989
990	if (!strcmp(arg, "off")) {
991		data = 0x01;
992	} else if (!strcmp(arg, "on")) {
993		data = 0x02;
994	} else {
995		revert();
996		errx(1, "argument to -S must be either on or off");
997	}
998
999	if (ioctl(0, VT_LOCKSWITCH, &data) == -1) {
1000		revert();
1001		errc(1, errno, "turning %s vty switching",
1002		     data == 0x01 ? "off" : "on");
1003	}
1004}
1005
1006
1007/*
1008 * Return the adapter name for a specified type.
1009 */
1010
1011static const char
1012*adapter_name(int type)
1013{
1014    static struct {
1015	int type;
1016	const char *name;
1017    } names[] = {
1018	{ KD_MONO,	"MDA" },
1019	{ KD_HERCULES,	"Hercules" },
1020	{ KD_CGA,	"CGA" },
1021	{ KD_EGA,	"EGA" },
1022	{ KD_VGA,	"VGA" },
1023	{ KD_PC98,	"PC-98xx" },
1024	{ KD_TGA,	"TGA" },
1025	{ -1,		"Unknown" },
1026    };
1027
1028    int i;
1029
1030    for (i = 0; names[i].type != -1; ++i)
1031	if (names[i].type == type)
1032	    break;
1033    return names[i].name;
1034}
1035
1036
1037/*
1038 * Show graphics adapter information.
1039 */
1040
1041static void
1042show_adapter_info(void)
1043{
1044	struct video_adapter_info ad;
1045
1046	ad.va_index = 0;
1047
1048	if (ioctl(0, CONS_ADPINFO, &ad) == -1) {
1049		revert();
1050		errc(1, errno, "obtaining adapter information");
1051	}
1052
1053	printf("fb%d:\n", ad.va_index);
1054	printf("    %.*s%d, type:%s%s (%d), flags:0x%x\n",
1055	       (int)sizeof(ad.va_name), ad.va_name, ad.va_unit,
1056	       (ad.va_flags & V_ADP_VESA) ? "VESA " : "",
1057	       adapter_name(ad.va_type), ad.va_type, ad.va_flags);
1058	printf("    initial mode:%d, current mode:%d, BIOS mode:%d\n",
1059	       ad.va_initial_mode, ad.va_mode, ad.va_initial_bios_mode);
1060	printf("    frame buffer window:0x%zx, buffer size:0x%zx\n",
1061	       ad.va_window, ad.va_buffer_size);
1062	printf("    window size:0x%zx, origin:0x%x\n",
1063	       ad.va_window_size, ad.va_window_orig);
1064	printf("    display start address (%d, %d), scan line width:%d\n",
1065	       ad.va_disp_start.x, ad.va_disp_start.y, ad.va_line_width);
1066	printf("    reserved:0x%zx\n", ad.va_unused0);
1067}
1068
1069
1070/*
1071 * Show video mode information.
1072 */
1073
1074static void
1075show_mode_info(void)
1076{
1077	char buf[80];
1078	struct video_info _info;
1079	int c;
1080	int mm;
1081	int mode;
1082
1083	printf("    mode#     flags   type    size       "
1084	       "font      window      linear buffer\n");
1085	printf("---------------------------------------"
1086	       "---------------------------------------\n");
1087
1088	for (mode = 0; mode <= M_VESA_MODE_MAX; ++mode) {
1089		_info.vi_mode = mode;
1090		if (ioctl(0, CONS_MODEINFO, &_info))
1091			continue;
1092		if (_info.vi_mode != mode)
1093			continue;
1094
1095		printf("%3d (0x%03x)", mode, mode);
1096    		printf(" 0x%08x", _info.vi_flags);
1097		if (_info.vi_flags & V_INFO_GRAPHICS) {
1098			c = 'G';
1099
1100			if (_info.vi_mem_model == V_INFO_MM_PLANAR)
1101				snprintf(buf, sizeof(buf), "%dx%dx%d %d",
1102				    _info.vi_width, _info.vi_height,
1103				    _info.vi_depth, _info.vi_planes);
1104			else {
1105				switch (_info.vi_mem_model) {
1106				case V_INFO_MM_PACKED:
1107					mm = 'P';
1108					break;
1109				case V_INFO_MM_DIRECT:
1110					mm = 'D';
1111					break;
1112				case V_INFO_MM_CGA:
1113					mm = 'C';
1114					break;
1115				case V_INFO_MM_HGC:
1116					mm = 'H';
1117					break;
1118				case V_INFO_MM_VGAX:
1119					mm = 'V';
1120					break;
1121				default:
1122					mm = ' ';
1123					break;
1124				}
1125				snprintf(buf, sizeof(buf), "%dx%dx%d %c",
1126				    _info.vi_width, _info.vi_height,
1127				    _info.vi_depth, mm);
1128			}
1129		} else {
1130			c = 'T';
1131
1132			snprintf(buf, sizeof(buf), "%dx%d",
1133				 _info.vi_width, _info.vi_height);
1134		}
1135
1136		printf(" %c %-15s", c, buf);
1137		snprintf(buf, sizeof(buf), "%dx%d",
1138			 _info.vi_cwidth, _info.vi_cheight);
1139		printf(" %-5s", buf);
1140    		printf(" 0x%05zx %2dk %2dk",
1141		       _info.vi_window, (int)_info.vi_window_size/1024,
1142		       (int)_info.vi_window_gran/1024);
1143    		printf(" 0x%08zx %dk\n",
1144		       _info.vi_buffer, (int)_info.vi_buffer_size/1024);
1145	}
1146}
1147
1148
1149static void
1150show_info(char *arg)
1151{
1152	if (!strcmp(arg, "adapter")) {
1153		show_adapter_info();
1154	} else if (!strcmp(arg, "mode")) {
1155		show_mode_info();
1156	} else {
1157		revert();
1158		errx(1, "argument to -i must be either adapter or mode");
1159	}
1160}
1161
1162
1163static void
1164test_frame(void)
1165{
1166	int i, cur_mode, fore;
1167
1168	fore = 15;
1169
1170	if (ioctl(0, CONS_GET, &cur_mode) < 0)
1171		err(1, "must be on a virtual console");
1172	switch (cur_mode) {
1173	case M_PC98_80x25:
1174	case M_PC98_80x30:
1175		fore = 7;
1176		break;
1177	}
1178
1179	fprintf(stdout, "\033[=0G\n\n");
1180	for (i=0; i<8; i++) {
1181		fprintf(stdout, "\033[=%dF\033[=0G        %2d \033[=%dF%-16s"
1182				"\033[=%dF\033[=0G        %2d \033[=%dF%-16s        "
1183				"\033[=%dF %2d \033[=%dGBACKGROUND\033[=0G\n",
1184			fore, i, i, legal_colors[i],
1185			fore, i+8, i+8, legal_colors[i+8],
1186			fore, i, i);
1187	}
1188	fprintf(stdout, "\033[=%dF\033[=%dG\033[=%dH\033[=%dI\n",
1189		info.mv_norm.fore, info.mv_norm.back,
1190		info.mv_rev.fore, info.mv_rev.back);
1191}
1192
1193
1194/*
1195 * Snapshot the video memory of that terminal, using the CONS_SCRSHOT
1196 * ioctl, and writes the results to stdout either in the special
1197 * binary format (see manual page for details), or in the plain
1198 * text format.
1199 */
1200
1201static void
1202dump_screen(int mode, int opt)
1203{
1204	scrshot_t shot;
1205	vid_info_t _info;
1206
1207	_info.size = sizeof(_info);
1208
1209	if (ioctl(0, CONS_GETINFO, &_info) == -1) {
1210		revert();
1211		errc(1, errno, "obtaining current video mode parameters");
1212		return;
1213	}
1214
1215	shot.x = shot.y = 0;
1216	shot.xsize = _info.mv_csz;
1217	shot.ysize = _info.mv_rsz;
1218	if (opt == DUMP_ALL)
1219		shot.ysize += _info.mv_hsz;
1220
1221	shot.buf = alloca(shot.xsize * shot.ysize * sizeof(u_int16_t));
1222	if (shot.buf == NULL) {
1223		revert();
1224		errx(1, "failed to allocate memory for dump");
1225	}
1226
1227	if (ioctl(0, CONS_SCRSHOT, &shot) == -1) {
1228		revert();
1229		errc(1, errno, "dumping screen");
1230	}
1231
1232	if (mode == DUMP_FMT_RAW) {
1233		printf("SCRSHOT_%c%c%c%c", DUMP_FMT_REV, 2,
1234		       shot.xsize, shot.ysize);
1235
1236		fflush(stdout);
1237
1238		write(STDOUT_FILENO, shot.buf,
1239		      shot.xsize * shot.ysize * sizeof(u_int16_t));
1240	} else {
1241		char *line;
1242		int x, y;
1243		u_int16_t ch;
1244
1245		line = alloca(shot.xsize + 1);
1246
1247		if (line == NULL) {
1248			revert();
1249			errx(1, "failed to allocate memory for line buffer");
1250		}
1251
1252		for (y = 0; y < shot.ysize; y++) {
1253			for (x = 0; x < shot.xsize; x++) {
1254				ch = shot.buf[x + (y * shot.xsize)];
1255				ch &= 0xff;
1256
1257				if (isprint(ch) == 0)
1258					ch = ' ';
1259
1260				line[x] = (char)ch;
1261			}
1262
1263			/* Trim trailing spaces */
1264
1265			do {
1266				line[x--] = '\0';
1267			} while (line[x] == ' ' && x != 0);
1268
1269			puts(line);
1270		}
1271
1272		fflush(stdout);
1273	}
1274}
1275
1276
1277/*
1278 * Set the console history buffer size.
1279 */
1280
1281static void
1282set_history(char *opt)
1283{
1284	int size;
1285
1286	size = atoi(opt);
1287
1288	if ((*opt == '\0') || size < 0) {
1289		revert();
1290		errx(1, "argument must be a positive number");
1291	}
1292
1293	if (ioctl(0, CONS_HISTORY, &size) == -1) {
1294		revert();
1295		errc(1, errno, "setting history buffer size");
1296	}
1297}
1298
1299
1300/*
1301 * Clear the console history buffer.
1302 */
1303
1304static void
1305clear_history(void)
1306{
1307	if (ioctl(0, CONS_CLRHIST) == -1) {
1308		revert();
1309		errc(1, errno, "clearing history buffer");
1310	}
1311}
1312
1313static void
1314set_terminal_mode(char *arg)
1315{
1316
1317	if (strcmp(arg, "xterm") == 0)
1318		fprintf(stderr, "\033[=T");
1319	else if (strcmp(arg, "cons25") == 0)
1320		fprintf(stderr, "\033[=1T");
1321}
1322
1323
1324int
1325main(int argc, char **argv)
1326{
1327	char    *font, *type, *termmode;
1328	const char *opts;
1329	int	dumpmod, dumpopt, opt;
1330	int	reterr;
1331
1332	vt4_mode = is_vt4();
1333
1334	init();
1335
1336	info.size = sizeof(info);
1337
1338	if (ioctl(0, CONS_GETINFO, &info) == -1)
1339		err(1, "must be on a virtual console");
1340	dumpmod = 0;
1341	dumpopt = DUMP_FBF;
1342	termmode = NULL;
1343	if (vt4_mode)
1344		opts = "b:Cc:fg:h:Hi:M:m:pPr:S:s:T:t:x";
1345	else
1346		opts = "b:Cc:df:g:h:Hi:l:LM:m:pPr:S:s:T:t:x";
1347
1348	while ((opt = getopt(argc, argv, opts)) != -1)
1349		switch(opt) {
1350		case 'b':
1351			set_border_color(optarg);
1352			break;
1353		case 'C':
1354			clear_history();
1355			break;
1356		case 'c':
1357			set_cursor_type(optarg);
1358			break;
1359		case 'd':
1360			if (vt4_mode)
1361				break;
1362			print_scrnmap();
1363			break;
1364		case 'f':
1365			optarg = nextarg(argc, argv, &optind, 'f', 0);
1366			if (optarg != NULL) {
1367				font = nextarg(argc, argv, &optind, 'f', 0);
1368
1369				if (font == NULL) {
1370					type = NULL;
1371					font = optarg;
1372				} else
1373					type = optarg;
1374
1375				load_font(type, font);
1376			} else {
1377				if (!vt4_mode)
1378					usage(); /* Switch syscons to ROM? */
1379
1380				load_default_vt4font();
1381			}
1382			break;
1383		case 'g':
1384			if (sscanf(optarg, "%dx%d",
1385			    &vesa_cols, &vesa_rows) != 2) {
1386				revert();
1387				warnx("incorrect geometry: %s", optarg);
1388				usage();
1389			}
1390                	break;
1391		case 'h':
1392			set_history(optarg);
1393			break;
1394		case 'H':
1395			dumpopt = DUMP_ALL;
1396			break;
1397		case 'i':
1398			show_info(optarg);
1399			break;
1400		case 'l':
1401			if (vt4_mode)
1402				break;
1403			load_scrnmap(optarg);
1404			break;
1405		case 'L':
1406			if (vt4_mode)
1407				break;
1408			load_default_scrnmap();
1409			break;
1410		case 'M':
1411			set_mouse_char(optarg);
1412			break;
1413		case 'm':
1414			set_mouse(optarg);
1415			break;
1416		case 'p':
1417			dumpmod = DUMP_FMT_RAW;
1418			break;
1419		case 'P':
1420			dumpmod = DUMP_FMT_TXT;
1421			break;
1422		case 'r':
1423			get_reverse_colors(argc, argv, &optind);
1424			break;
1425		case 'S':
1426			set_lockswitch(optarg);
1427			break;
1428		case 's':
1429			set_console(optarg);
1430			break;
1431		case 'T':
1432			if (strcmp(optarg, "xterm") != 0 &&
1433			    strcmp(optarg, "cons25") != 0)
1434				usage();
1435			termmode = optarg;
1436			break;
1437		case 't':
1438			set_screensaver_timeout(optarg);
1439			break;
1440		case 'x':
1441			hex = 1;
1442			break;
1443		default:
1444			usage();
1445		}
1446
1447	if (dumpmod != 0)
1448		dump_screen(dumpmod, dumpopt);
1449	reterr = video_mode(argc, argv, &optind);
1450	get_normal_colors(argc, argv, &optind);
1451
1452	if (optind < argc && !strcmp(argv[optind], "show")) {
1453		test_frame();
1454		optind++;
1455	}
1456
1457	video_mode(argc, argv, &optind);
1458	if (termmode != NULL)
1459		set_terminal_mode(termmode);
1460
1461	get_normal_colors(argc, argv, &optind);
1462
1463	if (colors_changed || video_mode_changed) {
1464		if (!(new_mode_info.vi_flags & V_INFO_GRAPHICS)) {
1465			if ((normal_back_color < 8) && (revers_back_color < 8)) {
1466				set_colors();
1467			} else {
1468				revert();
1469				errx(1, "bg color for text modes must be < 8");
1470			}
1471		} else {
1472			set_colors();
1473		}
1474	}
1475
1476	if ((optind != argc) || (argc == 1))
1477		usage();
1478	return reterr;
1479}
1480
1481