xref: /openbsd-src/sbin/wsconsctl/util.c (revision c90b30a5565527ce42c1fb5d0db42c180a1a0d89)
1 /*	$OpenBSD: util.c,v 1.66 2018/01/02 17:39:34 anton Exp $ */
2 /*	$NetBSD: util.c,v 1.8 2000/03/14 08:11:53 sato Exp $ */
3 
4 /*-
5  * Copyright (c) 1998 The NetBSD Foundation, Inc.
6  * All rights reserved.
7  *
8  * This code is derived from software contributed to The NetBSD Foundation
9  * by Juergen Hannken-Illjes.
10  *
11  * Redistribution and use in source and binary forms, with or without
12  * modification, are permitted provided that the following conditions
13  * are met:
14  * 1. Redistributions of source code must retain the above copyright
15  *    notice, this list of conditions and the following disclaimer.
16  * 2. Redistributions in binary form must reproduce the above copyright
17  *    notice, this list of conditions and the following disclaimer in the
18  *    documentation and/or other materials provided with the distribution.
19  *
20  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
21  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
22  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
23  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
24  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30  * POSSIBILITY OF SUCH DAMAGE.
31  */
32 
33 #include <sys/ioctl.h>
34 #include <sys/time.h>
35 #include <dev/wscons/wsconsio.h>
36 #include <dev/wscons/wsksymdef.h>
37 #include <err.h>
38 #include <stdlib.h>
39 #include <string.h>
40 #include <stdio.h>
41 #include <unistd.h>
42 #include "wsconsctl.h"
43 #include "mousecfg.h"
44 
45 #define TABLEN(t)		(sizeof(t)/sizeof(t[0]))
46 
47 extern struct wskbd_map_data kbmap;	/* from keyboard.c */
48 extern struct wskbd_map_data newkbmap;	/* from map_parse.y */
49 extern struct wsmouse_calibcoords wmcoords;	/* from mouse.c */
50 
51 struct nameint {
52 	int value;
53 	char *name;
54 };
55 
56 static const struct nameint kbtype_tab[] = {
57 	{ WSKBD_TYPE_LK201,	"lk201" },
58 	{ WSKBD_TYPE_LK401,	"lk401" },
59 	{ WSKBD_TYPE_PC_XT,	"pc-xt" },
60 	{ WSKBD_TYPE_PC_AT,	"pc-at" },
61 	{ WSKBD_TYPE_USB,	"usb" },
62 	{ WSKBD_TYPE_NEXT,	"NeXT" },
63 	{ WSKBD_TYPE_HPC_KBD,	"hpc-kbd" },
64 	{ WSKBD_TYPE_HPC_BTN,	"hpc-btn" },
65 	{ WSKBD_TYPE_ADB,	"adb" },
66 	{ WSKBD_TYPE_SUN,	"sun" },
67 	{ WSKBD_TYPE_SUN5,	"sun5" },
68 	{ WSKBD_TYPE_HIL,	"hil" },
69 	{ WSKBD_TYPE_GSC,	"hp-ps2" },
70 	{ WSKBD_TYPE_LUNA,	"luna" },
71 	{ WSKBD_TYPE_ZAURUS,	"zaurus" },
72 	{ WSKBD_TYPE_DOMAIN,	"domain" },
73 	{ WSKBD_TYPE_BLUETOOTH,	"bluetooth" },
74 	{ WSKBD_TYPE_KPC,	"kpc" },
75 	{ WSKBD_TYPE_SGI,	"sgi" },
76 };
77 
78 static const struct nameint mstype_tab[] = {
79 	{ WSMOUSE_TYPE_VSXXX,	"dec-tc" },
80 	{ WSMOUSE_TYPE_PS2,	"ps2" },
81 	{ WSMOUSE_TYPE_USB,	"usb" },
82 	{ WSMOUSE_TYPE_LMS,	"lms" },
83 	{ WSMOUSE_TYPE_MMS,	"mms" },
84 	{ WSMOUSE_TYPE_TPANEL,	"touch-panel" },
85 	{ WSMOUSE_TYPE_NEXT,	"NeXT" },
86 	{ WSMOUSE_TYPE_ARCHIMEDES, "archimedes" },
87 	{ WSMOUSE_TYPE_ADB,	"adb" },
88 	{ WSMOUSE_TYPE_HIL,	"hil" },
89 	{ WSMOUSE_TYPE_LUNA,	"luna" },
90 	{ WSMOUSE_TYPE_DOMAIN,	"domain" },
91 	{ WSMOUSE_TYPE_BLUETOOTH, "bluetooth" },
92 	{ WSMOUSE_TYPE_SUN,	"sun" },
93 	{ WSMOUSE_TYPE_SYNAPTICS, "synaptics" },
94 	{ WSMOUSE_TYPE_ALPS,	"alps" },
95 	{ WSMOUSE_TYPE_SGI,	"sgi" },
96 	{ WSMOUSE_TYPE_ELANTECH, "elantech" },
97 	{ WSMOUSE_TYPE_SYNAP_SBTN, "synaptics" },
98 };
99 
100 static const struct nameint dpytype_tab[] = {
101 	{ WSDISPLAY_TYPE_UNKNOWN,	"unknown" },
102 	{ WSDISPLAY_TYPE_PM_MONO,	"dec-pm-mono" },
103 	{ WSDISPLAY_TYPE_PM_COLOR,	"dec-pm-color" },
104 	{ WSDISPLAY_TYPE_CFB,		"dec-cfb" },
105 	{ WSDISPLAY_TYPE_XCFB,		"dec-xcfb" },
106 	{ WSDISPLAY_TYPE_MFB,		"dec-mfb" },
107 	{ WSDISPLAY_TYPE_SFB,		"dec-sfb" },
108 	{ WSDISPLAY_TYPE_ISAVGA,	"vga-isa" },
109 	{ WSDISPLAY_TYPE_PCIVGA,	"vga-pci" },
110 	{ WSDISPLAY_TYPE_TGA,		"dec-tga-pci" },
111 	{ WSDISPLAY_TYPE_SFBP,		"dec-sfb+" },
112 	{ WSDISPLAY_TYPE_PCIMISC,	"generic-pci" },
113 	{ WSDISPLAY_TYPE_NEXTMONO,	"next-mono" },
114 	{ WSDISPLAY_TYPE_PX,		"dec-px" },
115 	{ WSDISPLAY_TYPE_PXG,		"dec-pxg" },
116 	{ WSDISPLAY_TYPE_TX,		"dec-tx" },
117 	{ WSDISPLAY_TYPE_HPCFB,		"generic-hpc" },
118 	{ WSDISPLAY_TYPE_VIDC,		"arm-vidc" },
119 	{ WSDISPLAY_TYPE_SPX,		"dec-spx" },
120 	{ WSDISPLAY_TYPE_GPX,		"dec-gpx" },
121 	{ WSDISPLAY_TYPE_LCG,		"dec-lcg" },
122 	{ WSDISPLAY_TYPE_VAX_MONO,	"dec-mono" },
123 	{ WSDISPLAY_TYPE_SB_P9100,	"p9100" },
124 	{ WSDISPLAY_TYPE_EGA,		"ega" },
125 	{ WSDISPLAY_TYPE_DCPVR,		"powervr" },
126 	{ WSDISPLAY_TYPE_SUN24,		"sun24" },
127 	{ WSDISPLAY_TYPE_SUNBW,		"sunbw" },
128 	{ WSDISPLAY_TYPE_STI,		"hp-sti" },
129 	{ WSDISPLAY_TYPE_SUNCG3,	"suncg3" },
130 	{ WSDISPLAY_TYPE_SUNCG6,	"suncg6" },
131 	{ WSDISPLAY_TYPE_SUNFFB,	"sunffb" },
132 	{ WSDISPLAY_TYPE_SUNCG14,	"suncg14" },
133 	{ WSDISPLAY_TYPE_SUNCG2,	"suncg2" },
134 	{ WSDISPLAY_TYPE_SUNCG4,	"suncg4" },
135 	{ WSDISPLAY_TYPE_SUNCG8,	"suncg8" },
136 	{ WSDISPLAY_TYPE_SUNTCX,	"suntcx" },
137 	{ WSDISPLAY_TYPE_AGTEN,		"agten" },
138 	{ WSDISPLAY_TYPE_XVIDEO,	"xvideo" },
139 	{ WSDISPLAY_TYPE_SUNCG12,	"suncg12" },
140 	{ WSDISPLAY_TYPE_MGX,		"mgx" },
141 	{ WSDISPLAY_TYPE_SB_P9000,	"p9000" },
142 	{ WSDISPLAY_TYPE_RFLEX,		"rasterflex" },
143 	{ WSDISPLAY_TYPE_LUNA,		"luna" },
144 	{ WSDISPLAY_TYPE_DVBOX,		"davinci" },
145 	{ WSDISPLAY_TYPE_GBOX,		"gatorbox" },
146 	{ WSDISPLAY_TYPE_RBOX,		"renaissance" },
147 	{ WSDISPLAY_TYPE_HYPERION,	"hyperion" },
148 	{ WSDISPLAY_TYPE_TOPCAT,	"topcat" },
149 	{ WSDISPLAY_TYPE_PXALCD,	"pxalcd" },
150 	{ WSDISPLAY_TYPE_MAC68K,	"mac68k" },
151 	{ WSDISPLAY_TYPE_SUNLEO,	"sunleo" },
152 	{ WSDISPLAY_TYPE_TVRX,		"tvrx" },
153 	{ WSDISPLAY_TYPE_CFXGA,		"cfxga" },
154 	{ WSDISPLAY_TYPE_LCSPX,		"dec-lcspx" },
155 	{ WSDISPLAY_TYPE_GBE,		"gbe" },
156 	{ WSDISPLAY_TYPE_LEGSS,		"dec-legss" },
157 	{ WSDISPLAY_TYPE_IFB,		"ifb" },
158 	{ WSDISPLAY_TYPE_RAPTOR,	"raptor" },
159 	{ WSDISPLAY_TYPE_DL,		"displaylink" },
160 	{ WSDISPLAY_TYPE_MACHFB,	"mach64" },
161 	{ WSDISPLAY_TYPE_GFXP,		"gfxp" },
162 	{ WSDISPLAY_TYPE_RADEONFB,	"radeon" },
163 	{ WSDISPLAY_TYPE_SMFB,		"smfb" },
164 	{ WSDISPLAY_TYPE_SISFB,		"sisfb" },
165 	{ WSDISPLAY_TYPE_ODYSSEY,	"odyssey" },
166 	{ WSDISPLAY_TYPE_IMPACT,	"impact" },
167 	{ WSDISPLAY_TYPE_GRTWO,		"grtwo" },
168 	{ WSDISPLAY_TYPE_NEWPORT,	"newport" },
169 	{ WSDISPLAY_TYPE_LIGHT,		"light" },
170 	{ WSDISPLAY_TYPE_INTELDRM,	"inteldrm" },
171 	{ WSDISPLAY_TYPE_RADEONDRM,	"radeondrm" },
172 	{ WSDISPLAY_TYPE_EFIFB,		"efifb" }
173 };
174 
175 static const struct nameint kbdenc_tab[] = {
176 	KB_ENCTAB
177 };
178 
179 static const struct nameint kbdvar_tab[] = {
180 	KB_VARTAB
181 };
182 
183 char *int2name(int, int, const struct nameint *, int);
184 int name2int(char *, const struct nameint *, int);
185 void print_kmap(struct wskbd_map_data *);
186 void print_emul(struct wsdisplay_emultype *);
187 void print_screen(struct wsdisplay_screentype *);
188 
189 struct field *
190 field_by_name(struct field *field_tab, char *name)
191 {
192 	const char *p = strchr(name, '.');
193 
194 	if (!p++)
195 		errx(1, "%s: illegal variable name", name);
196 
197 	for (; field_tab->name; field_tab++)
198 		if (strcmp(field_tab->name, p) == 0)
199 			return (field_tab);
200 
201 	errx(1, "%s: not found", name);
202 }
203 
204 struct field *
205 field_by_value(struct field *field_tab, void *addr)
206 {
207 	for (; field_tab->name; field_tab++)
208 		if (field_tab->valp == addr)
209 			return (field_tab);
210 
211 	errx(1, "internal error: field_by_value: not found");
212 }
213 
214 char *
215 int2name(int val, int uflag, const struct nameint *tab, int len)
216 {
217 	static char tmp[20];
218 	int i;
219 
220 	for (i = 0; i < len; i++)
221 		if (tab[i].value == val)
222 			return(tab[i].name);
223 
224 	if (uflag) {
225 		snprintf(tmp, sizeof(tmp), "unknown_%d", val);
226 		return(tmp);
227 	} else
228 		return(NULL);
229 }
230 
231 int
232 name2int(char *val, const struct nameint *tab, int len)
233 {
234 	int i;
235 
236 	for (i = 0; i < len; i++)
237 		if (strcmp(tab[i].name, val) == 0)
238 			return(tab[i].value);
239 	return(-1);
240 }
241 
242 void
243 pr_field(const char *pre, struct field *f, const char *sep)
244 {
245 	struct field_pc *pc;
246 	u_int flags;
247 	int i, n;
248 	char *p;
249 
250 	if (sep)
251 		printf("%s.%s%s", pre, f->name, sep);
252 
253 	switch (f->format) {
254 	case FMT_UINT:
255 		printf("%u", *((u_int *) f->valp));
256 		break;
257 	case FMT_INT:
258 		printf("%d", *((int *) f->valp));
259 		break;
260 	case FMT_BOOL:
261 		printf("%s", *((u_int *) f->valp)? "on" : "off");
262 		break;
263 	case FMT_PC:
264 		pc = f->valp;
265 		i = pc->max - pc->min;
266 		n = pc->cur - pc->min;
267 		printf("%u.%02u%%", n * 100 / i, ((n * 100) % i) * 100 / i);
268 		break;
269 	case FMT_KBDTYPE:
270 		p = int2name(*((u_int *) f->valp), 1,
271 			     kbtype_tab, TABLEN(kbtype_tab));
272 		printf("%s", p);
273 		break;
274 	case FMT_MSTYPE:
275 		p = int2name(*((u_int *) f->valp), 1,
276 			     mstype_tab, TABLEN(mstype_tab));
277 		printf("%s", p);
278 		break;
279 	case FMT_DPYTYPE:
280 		p = int2name(*((u_int *) f->valp), 1,
281 			     dpytype_tab, TABLEN(dpytype_tab));
282 		printf("%s", p);
283 		break;
284 	case FMT_KBDENC:
285 		p = int2name(KB_ENCODING(*((u_int *) f->valp)), 1,
286 			     kbdenc_tab, TABLEN(kbdenc_tab));
287 		printf("%s", p);
288 
289 		flags = KB_VARIANT(*((u_int *) f->valp));
290 		for (i = 0; i < 32; i++) {
291 			if (!(flags & (1 << i)))
292 				continue;
293 			p = int2name(flags & (1 << i), 1,
294 				     kbdvar_tab, TABLEN(kbdvar_tab));
295 			printf(".%s", p);
296 		}
297 		break;
298 	case FMT_KBMAP:
299 		print_kmap((struct wskbd_map_data *) f->valp);
300 		break;
301 	case FMT_SCALE:
302 		printf("%d,%d,%d,%d,%d,%d,%d", wmcoords.minx, wmcoords.maxx,
303 		    wmcoords.miny, wmcoords.maxy, wmcoords.swapxy,
304 		    wmcoords.resx, wmcoords.resy);
305 		break;
306 	case FMT_EMUL:
307 		print_emul((struct wsdisplay_emultype *) f->valp);
308 		break;
309 	case FMT_SCREEN:
310 		print_screen((struct wsdisplay_screentype *) f->valp);
311 		break;
312 	case FMT_STRING:
313 		printf("%s", (const char *)f->valp);
314 		break;
315 	case FMT_CFG:
316 		mousecfg_pr_field((struct wsmouse_parameters *) f->valp);
317 		break;
318 	default:
319 		errx(1, "internal error: pr_field: no format %d", f->format);
320 		break;
321 	}
322 
323 	printf("\n");
324 }
325 
326 void
327 rd_field(struct field *f, char *val, int merge)
328 {
329 	struct wscons_keymap *mp;
330 	struct field_pc *pc;
331 	u_int u, r, fr;
332 	char *p;
333 	int i;
334 
335 	switch (f->format) {
336 	case FMT_UINT:
337 		if (sscanf(val, "%u", &u) != 1)
338 			errx(1, "%s: not a number", val);
339 		if (merge)
340 			*((u_int *) f->valp) += u;
341 		else
342 			*((u_int *) f->valp) = u;
343 		break;
344 	case FMT_INT:
345 		if (sscanf(val, "%d", &i) != 1)
346 			errx(1, "%s: not a number", val);
347 		if (merge)
348 			*((int *) f->valp) += i;
349 		else
350 			*((int *) f->valp) = i;
351 		break;
352 	case FMT_BOOL:
353 		if (*val != 'o' || (val[1] != 'n' &&
354 		    (val[1] != 'f' || val[2] != 'f')))
355 			errx(1, "%s: invalid value (on/off)", val);
356 		*((u_int *) f->valp) = val[1] == 'n'? 1 : 0;
357 		break;
358 	case FMT_PC:
359 		fr = 0;
360 		if ((i = sscanf(val, "%u.%u%%", &u, &fr)) != 2 && i != 1)
361 			errx(1, "%s: not a valid number", val);
362 		pc = f->valp;
363 		r = pc->max - pc->min;
364 		i = pc->min + (r * u) / 100 + (r * fr) / 100 / 100;
365 		if (merge == '+')
366 			pc->cur += i;
367 		else if (merge == '-')
368 			pc->cur -= i;
369 		else
370 			pc->cur = i;
371 		if (pc->cur > pc->max)
372 			pc->cur = pc->max;
373 		if (pc->cur < pc->min)
374 			pc->cur = pc->min;
375 		break;
376 	case FMT_KBDENC:
377 		p = strchr(val, '.');
378 		if (p != NULL)
379 			*p++ = '\0';
380 
381 		i = name2int(val, kbdenc_tab, TABLEN(kbdenc_tab));
382 		if (i == -1)
383 			errx(1, "%s: not a valid encoding", val);
384 		*((u_int *) f->valp) = i;
385 
386 		while (p) {
387 			val = p;
388 			p = strchr(p, '.');
389 			if (p != NULL)
390 				*p++ = '\0';
391 			i = name2int(val, kbdvar_tab, TABLEN(kbdvar_tab));
392 			if (i == -1)
393 				errx(1, "%s: not a valid variant", val);
394 			*((u_int *) f->valp) |= i;
395 		}
396 		break;
397 	case FMT_KBMAP:
398 		if (! merge)
399 			kbmap.maplen = 0;
400 		map_scan_setinput(val);
401 		yyparse();
402 		if (merge) {
403 			if (newkbmap.maplen < kbmap.maplen)
404 				newkbmap.maplen = kbmap.maplen;
405 			for (i = 0; i < kbmap.maplen; i++) {
406 				mp = newkbmap.map + i;
407 				if (mp->command == KS_voidSymbol &&
408 				    mp->group1[0] == KS_voidSymbol &&
409 				    mp->group1[1] == KS_voidSymbol &&
410 				    mp->group2[0] == KS_voidSymbol &&
411 				    mp->group2[1] == KS_voidSymbol)
412 					*mp = kbmap.map[i];
413 			}
414 		}
415 		kbmap.maplen = newkbmap.maplen;
416 		bcopy(newkbmap.map, kbmap.map,
417 		      kbmap.maplen*sizeof(struct wscons_keymap));
418 		break;
419 	case FMT_SCALE:
420 	{
421 		const char *errstr = 0;
422 
423 		/* Unspecified values default to 0. */
424 		bzero(&wmcoords, sizeof(wmcoords));
425 		val = (void *)strtok(val, ",");
426 		if (val != NULL) {
427 			wmcoords.minx = (int)strtonum(val,
428 			    -32768, 32767, &errstr);
429 			val = (void *)strtok(NULL, ",");
430 		}
431 		if (!errstr && val != NULL) {
432 			wmcoords.maxx = (int)strtonum(val,
433 			    -32768, 32767, &errstr);
434 			val = (void *)strtok(NULL, ",");
435 		}
436 		if (!errstr && val != NULL) {
437 			wmcoords.miny = (int)strtonum(val,
438 			    -32768, 32767, &errstr);
439 			val = (void *)strtok(NULL, ",");
440 		}
441 		if (!errstr && val != NULL) {
442 			wmcoords.maxy = (int)strtonum(val,
443 			    -32768, 32767, &errstr);
444 			val = (void *)strtok(NULL, ",");
445 		}
446 		if (!errstr && val != NULL) {
447 			wmcoords.swapxy = (int)strtonum(val,
448 			    -32768, 32767, &errstr);
449 			val = (void *)strtok(NULL, ",");
450 		}
451 		if (!errstr && val != NULL) {
452 			wmcoords.resx = (int)strtonum(val,
453 			    0, 32767, &errstr);
454 			val = (void *)strtok(NULL, ",");
455 		}
456 		if (!errstr && val != NULL) {
457 			wmcoords.resy = (int)strtonum(val,
458 			    0, 32767, &errstr);
459 			val = (void *)strtok(NULL, ",");
460 		}
461 		if (errstr)
462 			errx(1, "calibration value is %s", errstr);
463 		if (val != NULL)
464 			errx(1, "too many calibration values");
465 
466 		break;
467 	}
468 	case FMT_STRING:
469 		strlcpy(f->valp, val, WSFONT_NAME_SIZE);
470 		break;
471 	case FMT_CFG:
472 		mousecfg_rd_field((struct wsmouse_parameters *) f->valp, val);
473 		break;
474 	default:
475 		errx(1, "internal error: rd_field: no format %d", f->format);
476 		break;
477 	}
478 }
479 
480 void
481 print_kmap(struct wskbd_map_data *map)
482 {
483 	struct wscons_keymap *mp;
484 	int i;
485 
486 	for (i = 0; i < map->maplen; i++) {
487 		mp = map->map + i;
488 
489 		if (mp->command == KS_voidSymbol &&
490 		    mp->group1[0] == KS_voidSymbol &&
491 		    mp->group1[1] == KS_voidSymbol &&
492 		    mp->group2[0] == KS_voidSymbol &&
493 		    mp->group2[1] == KS_voidSymbol)
494 			continue;
495 		printf("\n");
496 		printf("keycode %u =", i);
497 		if (mp->command != KS_voidSymbol)
498 			printf(" %s", ksym2name(mp->command));
499 		printf(" %s", ksym2name(mp->group1[0]));
500 		if (mp->group1[0] != mp->group1[1] ||
501 		    mp->group1[0] != mp->group2[0] ||
502 		    mp->group1[0] != mp->group2[1]) {
503 			printf(" %s", ksym2name(mp->group1[1]));
504 			if (mp->group1[0] != mp->group2[0] ||
505 			    mp->group1[1] != mp->group2[1]) {
506 				printf(" %s", ksym2name(mp->group2[0]));
507 				printf(" %s", ksym2name(mp->group2[1]));
508 			}
509 		}
510 	}
511 	ksymenc(0);
512 }
513 
514 void
515 print_emul(struct wsdisplay_emultype *emuls)
516 {
517 	struct wsdisplay_emultype e;
518 	int fd,i;
519 	char c='\0';
520 
521 	fd=emuls->idx;
522 	e.idx=0;
523 	i = ioctl(fd, WSDISPLAYIO_GETEMULTYPE, &e);
524 	while(i == 0) {
525 		if (c != '\0')
526 			printf("%c", c);
527 		printf("%s", e.name);
528 		c=',';
529 		e.idx++;
530 		i = ioctl(fd, WSDISPLAYIO_GETEMULTYPE, &e);
531 	}
532 }
533 
534 void
535 print_screen(struct wsdisplay_screentype *screens)
536 {
537 	struct wsdisplay_screentype s;
538 	int fd,i;
539 	char c='\0';
540 
541 	fd=screens->idx;
542 	s.idx=0;
543 	i = ioctl(fd, WSDISPLAYIO_GETSCREENTYPE, &s);
544 	while(i == 0) {
545 		if (c != '\0')
546 			printf("%c", c);
547 		printf("%s", s.name);
548 		c=',';
549 		s.idx++;
550 		i = ioctl(fd, WSDISPLAYIO_GETSCREENTYPE, &s);
551 	}
552 }
553