xref: /freebsd/usr.sbin/moused/moused.c (revision 0640d357f29fb1c0daaaffadd0416c5981413afd)
1 /**
2  ** Copyright (c) 1995 Michael Smith, All rights reserved.
3  **
4  ** Redistribution and use in source and binary forms, with or without
5  ** modification, are permitted provided that the following conditions
6  ** are met:
7  ** 1. Redistributions of source code must retain the above copyright
8  **    notice, this list of conditions and the following disclaimer as
9  **    the first lines of this file unmodified.
10  ** 2. Redistributions in binary form must reproduce the above copyright
11  **    notice, this list of conditions and the following disclaimer in the
12  **    documentation and/or other materials provided with the distribution.
13  ** 3. All advertising materials mentioning features or use of this software
14  **    must display the following acknowledgment:
15  **      This product includes software developed by Michael Smith.
16  ** 4. The name of the author may not be used to endorse or promote products
17  **    derived from this software without specific prior written permission.
18  **
19  **
20  ** THIS SOFTWARE IS PROVIDED BY Michael Smith ``AS IS'' AND ANY
21  ** EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22  ** IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
23  ** PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL Michael Smith BE LIABLE FOR
24  ** 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
27  ** BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
28  ** WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
29  ** OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
30  ** EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31  **
32  **/
33 
34 /**
35  ** MOUSED.C
36  **
37  ** Mouse daemon : listens to a serial port, the bus mouse interface, or
38  ** the PS/2 mouse port for mouse data stream, interprets data and passes
39  ** ioctls off to the console driver.
40  **
41  ** The mouse interface functions are derived closely from the mouse
42  ** handler in the XFree86 X server.  Many thanks to the XFree86 people
43  ** for their great work!
44  **
45  **/
46 
47 #ifndef lint
48 static const char rcsid[] =
49 	"$Id: moused.c,v 1.19 1998/06/14 20:05:27 ahasty Exp $";
50 #endif /* not lint */
51 
52 #include <err.h>
53 #include <errno.h>
54 #include <fcntl.h>
55 #include <limits.h>
56 #include <stdio.h>
57 #include <stdlib.h>
58 #include <stdarg.h>
59 #include <string.h>
60 #include <ctype.h>
61 #include <signal.h>
62 #include <setjmp.h>
63 #include <termios.h>
64 #include <syslog.h>
65 
66 #include <machine/console.h>
67 #include <machine/mouse.h>
68 
69 #include <sys/types.h>
70 #include <sys/time.h>
71 #include <sys/socket.h>
72 #include <sys/un.h>
73 #include <unistd.h>
74 
75 #define MAX_CLICKTHRESHOLD	2000	/* 2 seconds */
76 
77 #define TRUE		1
78 #define FALSE		0
79 
80 #define MOUSE_XAXIS	(-1)
81 #define MOUSE_YAXIS	(-2)
82 
83 #define	ChordMiddle	0x0001
84 #define Emulate3Button	0x0002
85 #define ClearDTR	0x0004
86 #define ClearRTS	0x0008
87 #define NoPnP		0x0010
88 
89 #define ID_NONE		0
90 #define ID_PORT		1
91 #define ID_IF		2
92 #define ID_TYPE 	4
93 #define ID_MODEL	8
94 #define ID_ALL		(ID_PORT | ID_IF | ID_TYPE | ID_MODEL)
95 
96 #define debug(fmt,args...) \
97 	if (debug&&nodaemon) warnx(fmt, ##args)
98 
99 #define logerr(e, fmt, args...) {				\
100 	if (background) {					\
101 	    syslog(LOG_DAEMON | LOG_ERR, fmt ": %m", ##args);	\
102 	    exit(e);						\
103 	} else							\
104 	    err(e, fmt, ##args);				\
105 }
106 
107 #define logerrx(e, fmt, args...) {				\
108 	if (background) {					\
109 	    syslog(LOG_DAEMON | LOG_ERR, fmt, ##args);		\
110 	    exit(e);						\
111 	} else							\
112 	    errx(e, fmt, ##args);				\
113 }
114 
115 #define logwarn(fmt, args...) {					\
116 	if (background)						\
117 	    syslog(LOG_DAEMON | LOG_WARNING, fmt ": %m", ##args); \
118 	else							\
119 	    warn(fmt, ##args);					\
120 }
121 
122 #define logwarnx(fmt, args...) {				\
123 	if (background)						\
124 	    syslog(LOG_DAEMON | LOG_WARNING, fmt, ##args);	\
125 	else							\
126 	    warnx(fmt, ##args);					\
127 }
128 
129 /* structures */
130 
131 /* symbol table entry */
132 typedef struct {
133     char *name;
134     int val;
135     int val2;
136 } symtab_t;
137 
138 /* serial PnP ID string */
139 typedef struct {
140     int revision;	/* PnP revision, 100 for 1.00 */
141     char *eisaid;	/* EISA ID including mfr ID and product ID */
142     char *serial;	/* serial No, optional */
143     char *class;	/* device class, optional */
144     char *compat;	/* list of compatible drivers, optional */
145     char *description;	/* product description, optional */
146     int neisaid;	/* length of the above fields... */
147     int nserial;
148     int nclass;
149     int ncompat;
150     int ndescription;
151 } pnpid_t;
152 
153 /* global variables */
154 
155 int	debug = 0;
156 int	nodaemon = FALSE;
157 int	background = FALSE;
158 int	identify = ID_NONE;
159 int	extioctl = FALSE;
160 char	*pidfile = "/var/run/moused.pid";
161 
162 /* local variables */
163 
164 /* interface (the table must be ordered by MOUSE_IF_XXX in mouse.h) */
165 static symtab_t rifs[] = {
166     { "serial",		MOUSE_IF_SERIAL },
167     { "bus",		MOUSE_IF_BUS },
168     { "inport",		MOUSE_IF_INPORT },
169     { "ps/2",		MOUSE_IF_PS2 },
170     { "sysmouse",	MOUSE_IF_SYSMOUSE },
171     { NULL,		MOUSE_IF_UNKNOWN },
172 };
173 
174 /* types (the table must be ordered by MOUSE_PROTO_XXX in mouse.h) */
175 static char *rnames[] = {
176     "microsoft",
177     "mousesystems",
178     "logitech",
179     "mmseries",
180     "mouseman",
181     "busmouse",
182     "inportmouse",
183     "ps/2",
184     "mmhitab",
185     "glidepoint",
186     "intellimouse",
187     "thinkingmouse",
188     "sysmouse",
189     "x10mouseremote",
190 #if notyet
191     "mariqua",
192 #endif
193     NULL
194 };
195 
196 /* models */
197 static symtab_t	rmodels[] = {
198     { "NetScroll",	MOUSE_MODEL_NETSCROLL },
199     { "NetMouse",	MOUSE_MODEL_NET },
200     { "GlidePoint",	MOUSE_MODEL_GLIDEPOINT },
201     { "ThinkingMouse",	MOUSE_MODEL_THINK },
202     { "IntelliMouse",	MOUSE_MODEL_INTELLI },
203     { "EasyScroll",	MOUSE_MODEL_EASYSCROLL },
204     { "MouseMan+",	MOUSE_MODEL_MOUSEMANPLUS },
205     { "generic",	MOUSE_MODEL_GENERIC },
206     { NULL, 		MOUSE_MODEL_UNKNOWN },
207 };
208 
209 /* PnP EISA/product IDs */
210 static symtab_t pnpprod[] = {
211     /* Kensignton ThinkingMouse */
212     { "KML0001",	MOUSE_PROTO_THINK,	MOUSE_MODEL_THINK },
213     /* MS IntelliMouse */
214     { "MSH0001",	MOUSE_PROTO_INTELLI,	MOUSE_MODEL_INTELLI },
215     /* MS IntelliMouse TrackBall */
216     { "MSH0004",	MOUSE_PROTO_INTELLI,	MOUSE_MODEL_INTELLI },
217     /* Genius PnP Mouse */
218     { "KYE0001",	MOUSE_PROTO_MS,		MOUSE_MODEL_GENERIC },
219     /* Genius NetMouse */
220     { "KYE0003",	MOUSE_PROTO_INTELLI,	MOUSE_MODEL_NET },
221     /* Genius EZScroll */
222     { "KYEEZ00",	MOUSE_PROTO_MS,		MOUSE_MODEL_EASYSCROLL },
223     /* Logitech MouseMan (new 4 button model) */
224     { "LGI800C",	MOUSE_PROTO_INTELLI,	MOUSE_MODEL_MOUSEMANPLUS },
225     /* Logitech MouseMan+ */
226     { "LGI8050",	MOUSE_PROTO_INTELLI,	MOUSE_MODEL_MOUSEMANPLUS },
227     /* Logitech FirstMouse+ */
228     { "LGI8051",	MOUSE_PROTO_INTELLI,	MOUSE_MODEL_MOUSEMANPLUS },
229     /* Logitech serial */
230     { "LGI8001",	MOUSE_PROTO_LOGIMOUSEMAN, MOUSE_MODEL_GENERIC },
231 
232     /* MS bus */
233     { "PNP0F00",	MOUSE_PROTO_BUS,	MOUSE_MODEL_GENERIC },
234     /* MS serial */
235     { "PNP0F01",	MOUSE_PROTO_MS,		MOUSE_MODEL_GENERIC },
236     /* MS InPort */
237     { "PNP0F02",	MOUSE_PROTO_INPORT,	MOUSE_MODEL_GENERIC },
238     /* MS PS/2 */
239     { "PNP0F03",	MOUSE_PROTO_PS2,	MOUSE_MODEL_GENERIC },
240     /*
241      * EzScroll returns PNP0F04 in the compatible device field; but it
242      * doesn't look compatible... XXX
243      */
244     /* MouseSystems */
245     { "PNP0F04",	MOUSE_PROTO_MSC,	MOUSE_MODEL_GENERIC },
246     /* MouseSystems */
247     { "PNP0F05",	MOUSE_PROTO_MSC,	MOUSE_MODEL_GENERIC },
248 #if notyet
249     /* Genius Mouse */
250     { "PNP0F06",	MOUSE_PROTO_???,	MOUSE_MODEL_GENERIC },
251     /* Genius Mouse */
252     { "PNP0F07",	MOUSE_PROTO_???,	MOUSE_MODEL_GENERIC },
253 #endif
254     /* Logitech serial */
255     { "PNP0F08",	MOUSE_PROTO_LOGIMOUSEMAN, MOUSE_MODEL_GENERIC },
256     /* MS BallPoint serial */
257     { "PNP0F09",	MOUSE_PROTO_MS,		MOUSE_MODEL_GENERIC },
258     /* MS PnP serial */
259     { "PNP0F0A",	MOUSE_PROTO_MS,		MOUSE_MODEL_GENERIC },
260     /* MS PnP BallPoint serial */
261     { "PNP0F0B",	MOUSE_PROTO_MS,		MOUSE_MODEL_GENERIC },
262     /* MS serial comatible */
263     { "PNP0F0C",	MOUSE_PROTO_MS,		MOUSE_MODEL_GENERIC },
264     /* MS InPort comatible */
265     { "PNP0F0D",	MOUSE_PROTO_INPORT,	MOUSE_MODEL_GENERIC },
266     /* MS PS/2 comatible */
267     { "PNP0F0E",	MOUSE_PROTO_PS2,	MOUSE_MODEL_GENERIC },
268     /* MS BallPoint comatible */
269     { "PNP0F0F",	MOUSE_PROTO_MS,		MOUSE_MODEL_GENERIC },
270 #if notyet
271     /* TI QuickPort */
272     { "PNP0F10",	MOUSE_PROTO_???,	MOUSE_MODEL_GENERIC },
273 #endif
274     /* MS bus comatible */
275     { "PNP0F11",	MOUSE_PROTO_BUS,	MOUSE_MODEL_GENERIC },
276     /* Logitech PS/2 */
277     { "PNP0F12",	MOUSE_PROTO_PS2,	MOUSE_MODEL_GENERIC },
278     /* PS/2 */
279     { "PNP0F13",	MOUSE_PROTO_PS2,	MOUSE_MODEL_GENERIC },
280 #if notyet
281     /* MS Kids Mouse */
282     { "PNP0F14",	MOUSE_PROTO_???,	MOUSE_MODEL_GENERIC },
283 #endif
284     /* Logitech bus */
285     { "PNP0F15",	MOUSE_PROTO_BUS,	MOUSE_MODEL_GENERIC },
286 #if notyet
287     /* Logitech SWIFT */
288     { "PNP0F16",	MOUSE_PROTO_???,	MOUSE_MODEL_GENERIC },
289 #endif
290     /* Logitech serial compat */
291     { "PNP0F17",	MOUSE_PROTO_LOGIMOUSEMAN, MOUSE_MODEL_GENERIC },
292     /* Logitech bus compatible */
293     { "PNP0F18",	MOUSE_PROTO_BUS,	MOUSE_MODEL_GENERIC },
294     /* Logitech PS/2 compatible */
295     { "PNP0F19",	MOUSE_PROTO_PS2,	MOUSE_MODEL_GENERIC },
296 #if notyet
297     /* Logitech SWIFT compatible */
298     { "PNP0F1A",	MOUSE_PROTO_???,	MOUSE_MODEL_GENERIC },
299     /* HP Omnibook */
300     { "PNP0F1B",	MOUSE_PROTO_???,	MOUSE_MODEL_GENERIC },
301     /* Compaq LTE TrackBall PS/2 */
302     { "PNP0F1C",	MOUSE_PROTO_???,	MOUSE_MODEL_GENERIC },
303     /* Compaq LTE TrackBall serial */
304     { "PNP0F1D",	MOUSE_PROTO_???,	MOUSE_MODEL_GENERIC },
305     /* MS Kidts Trackball */
306     { "PNP0F1E",	MOUSE_PROTO_???,	MOUSE_MODEL_GENERIC },
307 #endif
308 
309     { NULL,		MOUSE_PROTO_UNKNOWN,	MOUSE_MODEL_GENERIC },
310 };
311 
312 /* the table must be ordered by MOUSE_PROTO_XXX in mouse.h */
313 static unsigned short rodentcflags[] =
314 {
315     (CS7	           | CREAD | CLOCAL | HUPCL ),	/* MicroSoft */
316     (CS8 | CSTOPB	   | CREAD | CLOCAL | HUPCL ),	/* MouseSystems */
317     (CS8 | CSTOPB	   | CREAD | CLOCAL | HUPCL ),	/* Logitech */
318     (CS8 | PARENB | PARODD | CREAD | CLOCAL | HUPCL ),	/* MMSeries */
319     (CS7		   | CREAD | CLOCAL | HUPCL ),	/* MouseMan */
320     0,							/* Bus */
321     0,							/* InPort */
322     0,							/* PS/2 */
323     (CS8		   | CREAD | CLOCAL | HUPCL ),	/* MM HitTablet */
324     (CS7	           | CREAD | CLOCAL | HUPCL ),	/* GlidePoint */
325     (CS7                   | CREAD | CLOCAL | HUPCL ),	/* IntelliMouse */
326     (CS7                   | CREAD | CLOCAL | HUPCL ),	/* Thinking Mouse */
327     (CS8 | CSTOPB	   | CREAD | CLOCAL | HUPCL ),	/* sysmouse */
328     (CS7	           | CREAD | CLOCAL | HUPCL ),	/* X10 MouseRemote */
329 #if notyet
330     (CS8 | CSTOPB	   | CREAD | CLOCAL | HUPCL ),	/* Mariqua */
331 #endif
332 };
333 
334 static struct rodentparam {
335     int flags;
336     char *portname;		/* /dev/XXX */
337     int rtype;			/* MOUSE_PROTO_XXX */
338     int level;			/* operation level: 0 or greater */
339     int baudrate;
340     int rate;			/* report rate */
341     int resolution;		/* MOUSE_RES_XXX or a positive number */
342     int zmap;			/* MOUSE_{X|Y}AXIS or a button number */
343     int mfd;			/* mouse file descriptor */
344     int cfd;			/* /dev/consolectl file descriptor */
345     int mremsfd;		/* mouse remote server file descriptor */
346     int mremcfd;		/* mouse remote client file descriptor */
347     long clickthreshold;	/* double click speed in msec */
348     mousehw_t hw;		/* mouse device hardware information */
349     mousemode_t mode;		/* protocol information */
350 } rodent = {
351     flags : 0,
352     portname : NULL,
353     rtype : MOUSE_PROTO_UNKNOWN,
354     level : -1,
355     baudrate : 1200,
356     rate : 0,
357     resolution : MOUSE_RES_UNKNOWN,
358     zmap: 0,
359     mfd : -1,
360     cfd : -1,
361     mremsfd : -1,
362     mremcfd : -1,
363     clickthreshold : 500,	/* 0.5 sec */
364 };
365 
366 /* button status */
367 static struct {
368     int count;		/* 0: up, 1: single click, 2: double click,... */
369     struct timeval tv;	/* timestamp on the last `up' event */
370 } buttonstate[MOUSE_MAXBUTTON];
371 
372 static jmp_buf env;
373 
374 /* function prototypes */
375 
376 static void	moused(void);
377 static void	hup(int sig);
378 static void	cleanup(int sig);
379 static void	usage(void);
380 
381 static int	r_identify(void);
382 static char	*r_if(int type);
383 static char	*r_name(int type);
384 static char	*r_model(int model);
385 static void	r_init(void);
386 static int	r_protocol(u_char b, mousestatus_t *act);
387 static int	r_installmap(char *arg);
388 static void	r_map(mousestatus_t *act1, mousestatus_t *act2);
389 static void	r_click(mousestatus_t *act);
390 static void	setmousespeed(int old, int new, unsigned cflag);
391 
392 static int	pnpwakeup1(void);
393 static int	pnpwakeup2(void);
394 static int	pnpgets(char *buf);
395 static int	pnpparse(pnpid_t *id, char *buf, int len);
396 static symtab_t	*pnpproto(pnpid_t *id);
397 
398 static symtab_t	*gettoken(symtab_t *tab, char *s, int len);
399 static char	*gettokenname(symtab_t *tab, int val);
400 
401 static void	mremote_serversetup();
402 static void	mremote_clientchg(int add);
403 
404 void
405 main(int argc, char *argv[])
406 {
407     int c;
408     int	i;
409 
410     while((c = getopt(argc,argv,"3C:DF:I:PRS:cdfhi:l:m:p:r:st:z:")) != -1)
411 	switch(c) {
412 
413 	case '3':
414 	    rodent.flags |= Emulate3Button;
415 	    break;
416 
417 	case 'c':
418 	    rodent.flags |= ChordMiddle;
419 	    break;
420 
421 	case 'd':
422 	    ++debug;
423 	    break;
424 
425 	case 'f':
426 	    nodaemon = TRUE;
427 	    break;
428 
429 	case 'i':
430 	    if (strcmp(optarg, "all") == 0)
431 	        identify = ID_ALL;
432 	    else if (strcmp(optarg, "port") == 0)
433 	        identify = ID_PORT;
434 	    else if (strcmp(optarg, "if") == 0)
435 	        identify = ID_IF;
436 	    else if (strcmp(optarg, "type") == 0)
437 	        identify = ID_TYPE;
438 	    else if (strcmp(optarg, "model") == 0)
439 	        identify = ID_MODEL;
440 	    else {
441 	        warnx("invalid argument `%s'", optarg);
442 	        usage();
443 	    }
444 	    nodaemon = TRUE;
445 	    break;
446 
447 	case 'l':
448 	    rodent.level = atoi(optarg);
449 	    if ((rodent.level < 0) || (rodent.level > 4)) {
450 	        warnx("invalid argument `%s'", optarg);
451 	        usage();
452 	    }
453 	    break;
454 
455 	case 'm':
456 	    if (!r_installmap(optarg)) {
457 	        warnx("invalid argument `%s'", optarg);
458 	        usage();
459 	    }
460 	    break;
461 
462 	case 'p':
463 	    rodent.portname = optarg;
464 	    break;
465 
466 	case 'r':
467 	    if (strcmp(optarg, "high") == 0)
468 	        rodent.resolution = MOUSE_RES_HIGH;
469 	    else if (strcmp(optarg, "medium-high") == 0)
470 	        rodent.resolution = MOUSE_RES_HIGH;
471 	    else if (strcmp(optarg, "medium-low") == 0)
472 	        rodent.resolution = MOUSE_RES_MEDIUMLOW;
473 	    else if (strcmp(optarg, "low") == 0)
474 	        rodent.resolution = MOUSE_RES_LOW;
475 	    else if (strcmp(optarg, "default") == 0)
476 	        rodent.resolution = MOUSE_RES_DEFAULT;
477 	    else {
478 	        rodent.resolution = atoi(optarg);
479 	        if (rodent.resolution <= 0) {
480 	            warnx("invalid argument `%s'", optarg);
481 	            usage();
482 	        }
483 	    }
484 	    break;
485 
486 	case 's':
487 	    rodent.baudrate = 9600;
488 	    break;
489 
490 	case 'z':
491 	    if (strcmp(optarg, "x") == 0)
492 		rodent.zmap = MOUSE_XAXIS;
493 	    else if (strcmp(optarg, "y") == 0)
494 		rodent.zmap = MOUSE_YAXIS;
495             else {
496 		i = atoi(optarg);
497 		/*
498 		 * Use button i for negative Z axis movement and
499 		 * button (i + 1) for positive Z axis movement.
500 		 */
501 		if ((i <= 0) || (i > MOUSE_MAXBUTTON - 1)) {
502 	            warnx("invalid argument `%s'", optarg);
503 	            usage();
504 		}
505 		rodent.zmap = 1 << (i - 1);
506 	    }
507 	    break;
508 
509 	case 'C':
510 	    rodent.clickthreshold = atoi(optarg);
511 	    if ((rodent.clickthreshold < 0) ||
512 	        (rodent.clickthreshold > MAX_CLICKTHRESHOLD)) {
513 	        warnx("invalid argument `%s'", optarg);
514 	        usage();
515 	    }
516 	    break;
517 
518 	case 'D':
519 	    rodent.flags |= ClearDTR;
520 	    break;
521 
522 	case 'F':
523 	    rodent.rate = atoi(optarg);
524 	    if (rodent.rate <= 0) {
525 	        warnx("invalid argument `%s'", optarg);
526 	        usage();
527 	    }
528 	    break;
529 
530 	case 'I':
531 	    pidfile = optarg;
532 	    break;
533 
534 	case 'P':
535 	    rodent.flags |= NoPnP;
536 	    break;
537 
538 	case 'R':
539 	    rodent.flags |= ClearRTS;
540 	    break;
541 
542 	case 'S':
543 	    rodent.baudrate = atoi(optarg);
544 	    if (rodent.baudrate <= 0) {
545 	        warnx("invalid argument `%s'", optarg);
546 	        usage();
547 	    }
548 	    debug("rodent baudrate %d", rodent.baudrate);
549 	    break;
550 
551 	case 't':
552 	    if (strcmp(optarg, "auto") == 0) {
553 		rodent.rtype = MOUSE_PROTO_UNKNOWN;
554 		rodent.flags &= ~NoPnP;
555 		rodent.level = -1;
556 		break;
557 	    }
558 	    for (i = 0; rnames[i]; i++)
559 		if (strcmp(optarg, rnames[i]) == 0) {
560 		    rodent.rtype = i;
561 		    rodent.flags |= NoPnP;
562 		    rodent.level = (i == MOUSE_PROTO_SYSMOUSE) ? 1 : 0;
563 		    break;
564 		}
565 	    if (rnames[i])
566 		break;
567 	    warnx("no such mouse type `%s'", optarg);
568 	    usage();
569 
570 	case 'h':
571 	case '?':
572 	default:
573 	    usage();
574 	}
575 
576     /* the default port name */
577     switch(rodent.rtype) {
578 
579     case MOUSE_PROTO_INPORT:
580         /* INPORT and BUS are the same... */
581 	rodent.rtype = MOUSE_PROTO_BUS;
582 	/* FALL THROUGH */
583     case MOUSE_PROTO_BUS:
584 	if (!rodent.portname)
585 	    rodent.portname = "/dev/mse0";
586 	break;
587 
588     case MOUSE_PROTO_PS2:
589 	if (!rodent.portname)
590 	    rodent.portname = "/dev/psm0";
591 	break;
592 
593     default:
594 	if (rodent.portname)
595 	    break;
596 	warnx("no port name specified");
597 	usage();
598     }
599 
600     for (;;) {
601 	if (setjmp(env) == 0) {
602 	    signal(SIGHUP, hup);
603 	    signal(SIGINT , cleanup);
604 	    signal(SIGQUIT, cleanup);
605 	    signal(SIGTERM, cleanup);
606             if ((rodent.mfd = open(rodent.portname, O_RDWR | O_NONBLOCK, 0))
607 		== -1)
608 	        logerr(1, "unable to open %s", rodent.portname);
609             if (r_identify() == MOUSE_PROTO_UNKNOWN) {
610 	        logwarnx("cannot determine mouse type on %s", rodent.portname);
611 	        close(rodent.mfd);
612 	        rodent.mfd = -1;
613             }
614 
615 	    /* print some information */
616             if (identify != ID_NONE) {
617 		if (identify == ID_ALL)
618                     printf("%s %s %s %s\n",
619 		        rodent.portname, r_if(rodent.hw.iftype),
620 		        r_name(rodent.rtype), r_model(rodent.hw.model));
621 		else if (identify & ID_PORT)
622 		    printf("%s\n", rodent.portname);
623 		else if (identify & ID_IF)
624 		    printf("%s\n", r_if(rodent.hw.iftype));
625 		else if (identify & ID_TYPE)
626 		    printf("%s\n", r_name(rodent.rtype));
627 		else if (identify & ID_MODEL)
628 		    printf("%s\n", r_model(rodent.hw.model));
629 		exit(0);
630 	    } else {
631                 debug("port: %s  interface: %s  type: %s  model: %s",
632 		    rodent.portname, r_if(rodent.hw.iftype),
633 		    r_name(rodent.rtype), r_model(rodent.hw.model));
634 	    }
635 
636 	    if (rodent.mfd == -1) {
637 	        /*
638 	         * We cannot continue because of error.  Exit if the
639 		 * program has not become a daemon.  Otherwise, block
640 		 * until the the user corrects the problem and issues SIGHUP.
641 	         */
642 	        if (!background)
643 		    exit(1);
644 	        sigpause(0);
645 	    }
646 
647             r_init();			/* call init function */
648 	    moused();
649 	}
650 
651 	if (rodent.mfd != -1)
652 	    close(rodent.mfd);
653 	if (rodent.cfd != -1)
654 	    close(rodent.cfd);
655 	rodent.mfd = rodent.cfd = -1;
656     }
657     /* NOT REACHED */
658 
659     exit(0);
660 }
661 
662 static void
663 moused(void)
664 {
665     struct mouse_info mouse;
666     mousestatus_t action;		/* original mouse action */
667     mousestatus_t action2;		/* mapped action */
668     fd_set fds;
669     u_char b;
670     FILE *fp;
671 
672     if ((rodent.cfd = open("/dev/consolectl", O_RDWR, 0)) == -1)
673 	logerr(1, "cannot open /dev/consolectl", 0);
674 
675     if (!nodaemon && !background)
676 	if (daemon(0, 0)) {
677 	    logerr(1, "failed to become a daemon", 0);
678 	} else {
679 	    background = TRUE;
680 	    fp = fopen(pidfile, "w");
681 	    if (fp != NULL) {
682 		fprintf(fp, "%d\n", getpid());
683 		fclose(fp);
684 	    }
685 	}
686 
687     /* clear mouse data */
688     bzero(&action, sizeof(action));
689     bzero(&action2, sizeof(action2));
690     bzero(&buttonstate, sizeof(buttonstate));
691     bzero(&mouse, sizeof(mouse));
692 
693     /* choose which ioctl command to use */
694     mouse.operation = MOUSE_MOTION_EVENT;
695     extioctl = (ioctl(rodent.cfd, CONS_MOUSECTL, &mouse) == 0);
696 
697     /* process mouse data */
698     for (;;) {
699 
700 	FD_ZERO(&fds);
701 	FD_SET(rodent.mfd, &fds);
702 	if (rodent.mremsfd >= 0)  FD_SET(rodent.mremsfd, &fds);
703 	if (rodent.mremcfd >= 0)  FD_SET(rodent.mremcfd, &fds);
704 
705 	if (select(FD_SETSIZE, &fds, NULL, NULL, NULL) <= 0)
706 	    logwarn("failed to read from mouse", 0);
707 
708 	/*  MouseRemote client connect/disconnect  */
709 	if ((rodent.mremsfd >= 0) && FD_ISSET(rodent.mremsfd, &fds)) {
710 	    mremote_clientchg(TRUE);
711 	    continue;
712 	}
713 
714 	if ((rodent.mremcfd >= 0) && FD_ISSET(rodent.mremcfd, &fds)) {
715 	    mremote_clientchg(FALSE);
716 	    continue;
717 	}
718 
719 	/*  mouse event  */
720 	read(rodent.mfd, &b, 1);
721 	if (r_protocol(b, &action)) {	/* handler detected action */
722 	    r_map(&action, &action2);
723 	    debug("activity : buttons 0x%08x  dx %d  dy %d  dz %d",
724 		action2.button, action2.dx, action2.dy, action2.dz);
725 
726 	    if (extioctl) {
727 	        r_click(&action2);
728 	        if (action2.flags & MOUSE_POSCHANGED) {
729     		    mouse.operation = MOUSE_MOTION_EVENT;
730 	            mouse.u.data.buttons = action2.button;
731 	            mouse.u.data.x = action2.dx;
732 	            mouse.u.data.y = action2.dy;
733 	            mouse.u.data.z = action2.dz;
734 		    if (debug < 2)
735 	                ioctl(rodent.cfd, CONS_MOUSECTL, &mouse);
736 	        }
737 	    } else {
738 	        mouse.operation = MOUSE_ACTION;
739 	        mouse.u.data.buttons = action2.button;
740 	        mouse.u.data.x = action2.dx;
741 	        mouse.u.data.y = action2.dy;
742 	        mouse.u.data.z = action2.dz;
743 		if (debug < 2)
744 	            ioctl(rodent.cfd, CONS_MOUSECTL, &mouse);
745 	    }
746 
747             /*
748 	     * If the Z axis movement is mapped to a imaginary physical
749 	     * button, we need to cook up a corresponding button `up' event
750 	     * after sending a button `down' event.
751 	     */
752             if ((rodent.zmap > 0) && (action.dz != 0)) {
753 		action.obutton = action.button;
754 		action.dx = action.dy = action.dz = 0;
755 	        r_map(&action, &action2);
756 	        debug("activity : buttons 0x%08x  dx %d  dy %d  dz %d",
757 		    action2.button, action2.dx, action2.dy, action2.dz);
758 
759 	        if (extioctl) {
760 	            r_click(&action2);
761 	        } else {
762 	            mouse.operation = MOUSE_ACTION;
763 	            mouse.u.data.buttons = action2.button;
764 		    mouse.u.data.x = mouse.u.data.y = mouse.u.data.z = 0;
765 		    if (debug < 2)
766 	                ioctl(rodent.cfd, CONS_MOUSECTL, &mouse);
767 	        }
768 	    }
769 	}
770     }
771     /* NOT REACHED */
772 }
773 
774 static void
775 hup(int sig)
776 {
777     longjmp(env, 1);
778 }
779 
780 static void
781 cleanup(int sig)
782 {
783     if (rodent.rtype == MOUSE_PROTO_X10MOUSEREM)
784 	unlink(_PATH_MOUSEREMOTE);
785     exit(0);
786 }
787 
788 /**
789  ** usage
790  **
791  ** Complain, and free the CPU for more worthy tasks
792  **/
793 static void
794 usage(void)
795 {
796     fprintf(stderr, "%s\n%s\n%s\n",
797         "usage: moused [-3DRcdfs] [-I file] [-F rate] [-r resolution] [-S baudrate] [-C threshold]",
798         "              [-m N=M] [-z N] [-t <mousetype>] -p <port>",
799 	"       moused [-d] -i -p <port>");
800     exit(1);
801 }
802 
803 /**
804  ** Mouse interface code, courtesy of XFree86 3.1.2.
805  **
806  ** Note: Various bits have been trimmed, and in my shortsighted enthusiasm
807  ** to clean, reformat and rationalise naming, it's quite possible that
808  ** some things in here have been broken.
809  **
810  ** I hope not 8)
811  **
812  ** The following code is derived from a module marked :
813  **/
814 
815 /* $XConsortium: xf86_Mouse.c,v 1.2 94/10/12 20:33:21 kaleb Exp $ */
816 /* $XFree86: xc/programs/Xserver/hw/xfree86/common/xf86_Mouse.c,v 3.2 1995/01/28
817  17:03:40 dawes Exp $ */
818 /*
819  *
820  * Copyright 1990,91 by Thomas Roell, Dinkelscherben, Germany.
821  * Copyright 1993 by David Dawes <dawes@physics.su.oz.au>
822  *
823  * Permission to use, copy, modify, distribute, and sell this software and its
824  * documentation for any purpose is hereby granted without fee, provided that
825  * the above copyright notice appear in all copies and that both that
826  * copyright notice and this permission notice appear in supporting
827  * documentation, and that the names of Thomas Roell and David Dawes not be
828  * used in advertising or publicity pertaining to distribution of the
829  * software without specific, written prior permission.  Thomas Roell
830  * and David Dawes makes no representations about the suitability of this
831  * software for any purpose.  It is provided "as is" without express or
832  * implied warranty.
833  *
834  * THOMAS ROELL AND DAVID DAWES DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
835  * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
836  * FITNESS, IN NO EVENT SHALL THOMAS ROELL OR DAVID DAWES BE LIABLE FOR ANY
837  * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
838  * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
839  * CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
840  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
841  *
842  */
843 
844 /**
845  ** GlidePoint support from XFree86 3.2.
846  ** Derived from the module:
847  **/
848 
849 /* $XFree86: xc/programs/Xserver/hw/xfree86/common/xf86_Mouse.c,v 3.19 1996/10/16 14:40:51 dawes Exp $ */
850 /* $XConsortium: xf86_Mouse.c /main/10 1996/01/30 15:16:12 kaleb $ */
851 
852 /* the following table must be ordered by MOUSE_PROTO_XXX in mouse.h */
853 static unsigned char proto[][7] = {
854     /*  hd_mask hd_id   dp_mask dp_id   bytes b4_mask b4_id */
855     { 	0x40,	0x40,	0x40,	0x00,	3,   ~0x23,  0x00 }, /* MicroSoft */
856     {	0xf8,	0x80,	0x00,	0x00,	5,    0x00,  0xff }, /* MouseSystems */
857     {	0xe0,	0x80,	0x80,	0x00,	3,    0x00,  0xff }, /* Logitech */
858     {	0xe0,	0x80,	0x80,	0x00,	3,    0x00,  0xff }, /* MMSeries */
859     { 	0x40,	0x40,	0x40,	0x00,	3,   ~0x33,  0x00 }, /* MouseMan */
860     {	0xf8,	0x80,	0x00,	0x00,	5,    0x00,  0xff }, /* Bus */
861     {	0xf8,	0x80,	0x00,	0x00,	5,    0x00,  0xff }, /* InPort */
862     {	0xc0,	0x00,	0x00,	0x00,	3,    0x00,  0xff }, /* PS/2 mouse */
863     {	0xe0,	0x80,	0x80,	0x00,	3,    0x00,  0xff }, /* MM HitTablet */
864     { 	0x40,	0x40,	0x40,	0x00,	3,   ~0x33,  0x00 }, /* GlidePoint */
865     { 	0x40,	0x40,	0x40,	0x00,	3,   ~0x3f,  0x00 }, /* IntelliMouse */
866     { 	0x40,	0x40,	0x40,	0x00,	3,   ~0x33,  0x00 }, /* ThinkingMouse */
867     {	0xf8,	0x80,	0x00,	0x00,	5,    0x00,  0xff }, /* sysmouse */
868     { 	0x40,	0x40,	0x40,	0x00,	3,   ~0x23,  0x00 }, /* X10 MouseRem */
869 #if notyet
870     {	0xf8,	0x80,	0x00,	0x00,	5,   ~0x2f,  0x10 }, /* Mariqua */
871 #endif
872 };
873 static unsigned char cur_proto[7];
874 
875 static int
876 r_identify(void)
877 {
878     char pnpbuf[256];	/* PnP identifier string may be up to 256 bytes long */
879     pnpid_t pnpid;
880     symtab_t *t;
881     int level;
882     int len;
883 
884     /* set the driver operation level, if applicable */
885     if (rodent.level < 0)
886 	rodent.level = 1;
887     ioctl(rodent.mfd, MOUSE_SETLEVEL, &rodent.level);
888     rodent.level = (ioctl(rodent.mfd, MOUSE_GETLEVEL, &level) == 0) ? level : 0;
889 
890     /*
891      * Interrogate the driver and get some intelligence on the device...
892      * The following ioctl functions are not always supported by device
893      * drivers.  When the driver doesn't support them, we just trust the
894      * user to supply valid information.
895      */
896     rodent.hw.iftype = MOUSE_IF_UNKNOWN;
897     rodent.hw.model = MOUSE_MODEL_GENERIC;
898     ioctl(rodent.mfd, MOUSE_GETHWINFO, &rodent.hw);
899 
900     if (rodent.rtype != MOUSE_PROTO_UNKNOWN)
901         bcopy(proto[rodent.rtype], cur_proto, sizeof(cur_proto));
902     rodent.mode.protocol = MOUSE_PROTO_UNKNOWN;
903     rodent.mode.rate = -1;
904     rodent.mode.resolution = MOUSE_RES_UNKNOWN;
905     rodent.mode.accelfactor = 0;
906     rodent.mode.level = 0;
907     if (ioctl(rodent.mfd, MOUSE_GETMODE, &rodent.mode) == 0) {
908         if ((rodent.mode.protocol == MOUSE_PROTO_UNKNOWN)
909 	    || (rodent.mode.protocol >= sizeof(proto)/sizeof(proto[0]))) {
910 	    logwarnx("unknown mouse protocol (%d)", rodent.mode.protocol);
911 	    return MOUSE_PROTO_UNKNOWN;
912         } else {
913 	    /* INPORT and BUS are the same... */
914 	    if (rodent.mode.protocol == MOUSE_PROTO_INPORT)
915 	        rodent.mode.protocol = MOUSE_PROTO_BUS;
916 	    if (rodent.mode.protocol != rodent.rtype) {
917 		/* Hmm, the driver doesn't agree with the user... */
918                 if (rodent.rtype != MOUSE_PROTO_UNKNOWN)
919 	            logwarnx("mouse type mismatch (%s != %s), %s is assumed",
920 		        r_name(rodent.mode.protocol), r_name(rodent.rtype),
921 		        r_name(rodent.mode.protocol));
922 	        rodent.rtype = rodent.mode.protocol;
923                 bcopy(proto[rodent.rtype], cur_proto, sizeof(cur_proto));
924 	    }
925         }
926         cur_proto[4] = rodent.mode.packetsize;
927         cur_proto[0] = rodent.mode.syncmask[0];	/* header byte bit mask */
928         cur_proto[1] = rodent.mode.syncmask[1];	/* header bit pattern */
929     }
930 
931     /* maybe this is an PnP mouse... */
932     if (rodent.mode.protocol == MOUSE_PROTO_UNKNOWN) {
933 
934         if (rodent.flags & NoPnP)
935             return rodent.rtype;
936 	if (((len = pnpgets(pnpbuf)) <= 0) || !pnpparse(&pnpid, pnpbuf, len))
937             return rodent.rtype;
938 
939         debug("PnP serial mouse: '%*.*s' '%*.*s' '%*.*s'",
940 	    pnpid.neisaid, pnpid.neisaid, pnpid.eisaid,
941 	    pnpid.ncompat, pnpid.ncompat, pnpid.compat,
942 	    pnpid.ndescription, pnpid.ndescription, pnpid.description);
943 
944 	/* we have a valid PnP serial device ID */
945         rodent.hw.iftype = MOUSE_IF_SERIAL;
946 	t = pnpproto(&pnpid);
947 	if (t != NULL) {
948             rodent.mode.protocol = t->val;
949             rodent.hw.model = t->val2;
950 	} else {
951             rodent.mode.protocol = MOUSE_PROTO_UNKNOWN;
952 	}
953 	if (rodent.mode.protocol == MOUSE_PROTO_INPORT)
954 	    rodent.mode.protocol = MOUSE_PROTO_BUS;
955 
956         /* make final adjustment */
957 	if (rodent.mode.protocol != MOUSE_PROTO_UNKNOWN) {
958 	    if (rodent.mode.protocol != rodent.rtype) {
959 		/* Hmm, the device doesn't agree with the user... */
960                 if (rodent.rtype != MOUSE_PROTO_UNKNOWN)
961 	            logwarnx("mouse type mismatch (%s != %s), %s is assumed",
962 		        r_name(rodent.mode.protocol), r_name(rodent.rtype),
963 		        r_name(rodent.mode.protocol));
964 	        rodent.rtype = rodent.mode.protocol;
965                 bcopy(proto[rodent.rtype], cur_proto, sizeof(cur_proto));
966 	    }
967 	}
968     }
969 
970     debug("proto params: %02x %02x %02x %02x %d %02x %02x",
971 	cur_proto[0], cur_proto[1], cur_proto[2], cur_proto[3],
972 	cur_proto[4], cur_proto[5], cur_proto[6]);
973 
974     return rodent.rtype;
975 }
976 
977 static char *
978 r_if(int iftype)
979 {
980     char *s;
981 
982     s = gettokenname(rifs, iftype);
983     return (s == NULL) ? "unknown" : s;
984 }
985 
986 static char *
987 r_name(int type)
988 {
989     return ((type == MOUSE_PROTO_UNKNOWN)
990 	|| (type > sizeof(rnames)/sizeof(rnames[0]) - 1))
991 	? "unknown" : rnames[type];
992 }
993 
994 static char *
995 r_model(int model)
996 {
997     char *s;
998 
999     s = gettokenname(rmodels, model);
1000     return (s == NULL) ? "unknown" : s;
1001 }
1002 
1003 static void
1004 r_init(void)
1005 {
1006     fd_set fds;
1007     char *s;
1008     char c;
1009     int i;
1010 
1011     /**
1012      ** This comment is a little out of context here, but it contains
1013      ** some useful information...
1014      ********************************************************************
1015      **
1016      ** The following lines take care of the Logitech MouseMan protocols.
1017      **
1018      ** NOTE: There are different versions of both MouseMan and TrackMan!
1019      **       Hence I add another protocol P_LOGIMAN, which the user can
1020      **       specify as MouseMan in his XF86Config file. This entry was
1021      **       formerly handled as a special case of P_MS. However, people
1022      **       who don't have the middle button problem, can still specify
1023      **       Microsoft and use P_MS.
1024      **
1025      ** By default, these mice should use a 3 byte Microsoft protocol
1026      ** plus a 4th byte for the middle button. However, the mouse might
1027      ** have switched to a different protocol before we use it, so I send
1028      ** the proper sequence just in case.
1029      **
1030      ** NOTE: - all commands to (at least the European) MouseMan have to
1031      **         be sent at 1200 Baud.
1032      **       - each command starts with a '*'.
1033      **       - whenever the MouseMan receives a '*', it will switch back
1034      **	 to 1200 Baud. Hence I have to select the desired protocol
1035      **	 first, then select the baud rate.
1036      **
1037      ** The protocols supported by the (European) MouseMan are:
1038      **   -  5 byte packed binary protocol, as with the Mouse Systems
1039      **      mouse. Selected by sequence "*U".
1040      **   -  2 button 3 byte MicroSoft compatible protocol. Selected
1041      **      by sequence "*V".
1042      **   -  3 button 3+1 byte MicroSoft compatible protocol (default).
1043      **      Selected by sequence "*X".
1044      **
1045      ** The following baud rates are supported:
1046      **   -  1200 Baud (default). Selected by sequence "*n".
1047      **   -  9600 Baud. Selected by sequence "*q".
1048      **
1049      ** Selecting a sample rate is no longer supported with the MouseMan!
1050      ** Some additional lines in xf86Config.c take care of ill configured
1051      ** baud rates and sample rates. (The user will get an error.)
1052      */
1053 
1054     switch (rodent.rtype) {
1055 
1056     case MOUSE_PROTO_LOGI:
1057 	/*
1058 	 * The baud rate selection command must be sent at the current
1059 	 * baud rate; try all likely settings
1060 	 */
1061 	setmousespeed(9600, rodent.baudrate, rodentcflags[rodent.rtype]);
1062 	setmousespeed(4800, rodent.baudrate, rodentcflags[rodent.rtype]);
1063 	setmousespeed(2400, rodent.baudrate, rodentcflags[rodent.rtype]);
1064 	setmousespeed(1200, rodent.baudrate, rodentcflags[rodent.rtype]);
1065 	/* select MM series data format */
1066 	write(rodent.mfd, "S", 1);
1067 	setmousespeed(rodent.baudrate, rodent.baudrate,
1068 		      rodentcflags[MOUSE_PROTO_MM]);
1069 	/* select report rate/frequency */
1070 	if      (rodent.rate <= 0)   write(rodent.mfd, "O", 1);
1071 	else if (rodent.rate <= 15)  write(rodent.mfd, "J", 1);
1072 	else if (rodent.rate <= 27)  write(rodent.mfd, "K", 1);
1073 	else if (rodent.rate <= 42)  write(rodent.mfd, "L", 1);
1074 	else if (rodent.rate <= 60)  write(rodent.mfd, "R", 1);
1075 	else if (rodent.rate <= 85)  write(rodent.mfd, "M", 1);
1076 	else if (rodent.rate <= 125) write(rodent.mfd, "Q", 1);
1077 	else			     write(rodent.mfd, "N", 1);
1078 	break;
1079 
1080     case MOUSE_PROTO_LOGIMOUSEMAN:
1081 	/* The command must always be sent at 1200 baud */
1082 	setmousespeed(1200, 1200, rodentcflags[rodent.rtype]);
1083 	write(rodent.mfd, "*X", 2);
1084 	setmousespeed(1200, rodent.baudrate, rodentcflags[rodent.rtype]);
1085 	break;
1086 
1087     case MOUSE_PROTO_HITTAB:
1088 	setmousespeed(1200, rodent.baudrate, rodentcflags[rodent.rtype]);
1089 
1090 	/*
1091 	 * Initialize Hitachi PUMA Plus - Model 1212E to desired settings.
1092 	 * The tablet must be configured to be in MM mode, NO parity,
1093 	 * Binary Format.  xf86Info.sampleRate controls the sensativity
1094 	 * of the tablet.  We only use this tablet for it's 4-button puck
1095 	 * so we don't run in "Absolute Mode"
1096 	 */
1097 	write(rodent.mfd, "z8", 2);	/* Set Parity = "NONE" */
1098 	usleep(50000);
1099 	write(rodent.mfd, "zb", 2);	/* Set Format = "Binary" */
1100 	usleep(50000);
1101 	write(rodent.mfd, "@", 1);	/* Set Report Mode = "Stream" */
1102 	usleep(50000);
1103 	write(rodent.mfd, "R", 1);	/* Set Output Rate = "45 rps" */
1104 	usleep(50000);
1105 	write(rodent.mfd, "I\x20", 2);	/* Set Incrememtal Mode "20" */
1106 	usleep(50000);
1107 	write(rodent.mfd, "E", 1);	/* Set Data Type = "Relative */
1108 	usleep(50000);
1109 
1110 	/* Resolution is in 'lines per inch' on the Hitachi tablet */
1111 	if      (rodent.resolution == MOUSE_RES_LOW) 		c = 'g';
1112 	else if (rodent.resolution == MOUSE_RES_MEDIUMLOW)	c = 'e';
1113 	else if (rodent.resolution == MOUSE_RES_MEDIUMHIGH)	c = 'h';
1114 	else if (rodent.resolution == MOUSE_RES_HIGH)		c = 'd';
1115 	else if (rodent.resolution <=   40) 			c = 'g';
1116 	else if (rodent.resolution <=  100) 			c = 'd';
1117 	else if (rodent.resolution <=  200) 			c = 'e';
1118 	else if (rodent.resolution <=  500) 			c = 'h';
1119 	else if (rodent.resolution <= 1000) 			c = 'j';
1120 	else                                			c = 'd';
1121 	write(rodent.mfd, &c, 1);
1122 	usleep(50000);
1123 
1124 	write(rodent.mfd, "\021", 1);	/* Resume DATA output */
1125 	break;
1126 
1127     case MOUSE_PROTO_THINK:
1128 	setmousespeed(1200, rodent.baudrate, rodentcflags[rodent.rtype]);
1129 	/* the PnP ID string may be sent again, discard it */
1130 	usleep(200000);
1131 	i = FREAD;
1132 	ioctl(rodent.mfd, TIOCFLUSH, &i);
1133 	/* send the command to initialize the beast */
1134 	for (s = "E5E5"; *s; ++s) {
1135 	    write(rodent.mfd, s, 1);
1136 	    FD_ZERO(&fds);
1137 	    FD_SET(rodent.mfd, &fds);
1138 	    if (select(FD_SETSIZE, &fds, NULL, NULL, NULL) <= 0)
1139 		break;
1140 	    read(rodent.mfd, &c, 1);
1141 	    debug("%c", c);
1142 	    if (c != *s)
1143 	        break;
1144 	}
1145 	break;
1146 
1147     case MOUSE_PROTO_MSC:
1148 	setmousespeed(1200, rodent.baudrate, rodentcflags[rodent.rtype]);
1149 	if (rodent.flags & ClearDTR) {
1150 	   i = TIOCM_DTR;
1151 	   ioctl(rodent.mfd, TIOCMBIC, &i);
1152         }
1153         if (rodent.flags & ClearRTS) {
1154 	   i = TIOCM_RTS;
1155 	   ioctl(rodent.mfd, TIOCMBIC, &i);
1156         }
1157 	break;
1158 
1159     case MOUSE_PROTO_SYSMOUSE:
1160 	if (rodent.hw.iftype == MOUSE_IF_SYSMOUSE)
1161 	    setmousespeed(1200, rodent.baudrate, rodentcflags[rodent.rtype]);
1162 	/* fall through */
1163 
1164     case MOUSE_PROTO_BUS:
1165     case MOUSE_PROTO_INPORT:
1166     case MOUSE_PROTO_PS2:
1167 	if (rodent.rate >= 0)
1168 	    rodent.mode.rate = rodent.rate;
1169 	if (rodent.resolution != MOUSE_RES_UNKNOWN)
1170 	    rodent.mode.resolution = rodent.resolution;
1171 	ioctl(rodent.mfd, MOUSE_SETMODE, &rodent.mode);
1172 	break;
1173 
1174     case MOUSE_PROTO_X10MOUSEREM:
1175 	mremote_serversetup();
1176 	setmousespeed(1200, rodent.baudrate, rodentcflags[rodent.rtype]);
1177 	break;
1178 
1179 
1180     default:
1181 	setmousespeed(1200, rodent.baudrate, rodentcflags[rodent.rtype]);
1182 	break;
1183     }
1184 }
1185 
1186 static int
1187 r_protocol(u_char rBuf, mousestatus_t *act)
1188 {
1189     /* MOUSE_MSS_BUTTON?DOWN -> MOUSE_BUTTON?DOWN */
1190     static int butmapmss[4] = {	/* Microsoft, MouseMan, GlidePoint,
1191 				   IntelliMouse, Thinking Mouse */
1192 	0,
1193 	MOUSE_BUTTON3DOWN,
1194 	MOUSE_BUTTON1DOWN,
1195 	MOUSE_BUTTON1DOWN | MOUSE_BUTTON3DOWN,
1196     };
1197     static int butmapmss2[4] = { /* Microsoft, MouseMan, GlidePoint,
1198 				    Thinking Mouse */
1199 	0,
1200 	MOUSE_BUTTON4DOWN,
1201 	MOUSE_BUTTON2DOWN,
1202 	MOUSE_BUTTON2DOWN | MOUSE_BUTTON4DOWN,
1203     };
1204     /* MOUSE_INTELLI_BUTTON?DOWN -> MOUSE_BUTTON?DOWN */
1205     static int butmapintelli[4] = { /* IntelliMouse, NetMouse, Mie Mouse,
1206 				       MouseMan+ */
1207 	0,
1208 	MOUSE_BUTTON2DOWN,
1209 	MOUSE_BUTTON4DOWN,
1210 	MOUSE_BUTTON2DOWN | MOUSE_BUTTON4DOWN,
1211     };
1212     /* MOUSE_MSC_BUTTON?UP -> MOUSE_BUTTON?DOWN */
1213     static int butmapmsc[8] = {	/* MouseSystems, MMSeries, Logitech,
1214 				   Bus, sysmouse */
1215 	0,
1216 	MOUSE_BUTTON3DOWN,
1217 	MOUSE_BUTTON2DOWN,
1218 	MOUSE_BUTTON2DOWN | MOUSE_BUTTON3DOWN,
1219 	MOUSE_BUTTON1DOWN,
1220 	MOUSE_BUTTON1DOWN | MOUSE_BUTTON3DOWN,
1221 	MOUSE_BUTTON1DOWN | MOUSE_BUTTON2DOWN,
1222 	MOUSE_BUTTON1DOWN | MOUSE_BUTTON2DOWN | MOUSE_BUTTON3DOWN
1223     };
1224     /* MOUSE_PS2_BUTTON?DOWN -> MOUSE_BUTTON?DOWN */
1225     static int butmapps2[8] = {	/* PS/2 */
1226 	0,
1227 	MOUSE_BUTTON1DOWN,
1228 	MOUSE_BUTTON3DOWN,
1229 	MOUSE_BUTTON1DOWN | MOUSE_BUTTON3DOWN,
1230 	MOUSE_BUTTON2DOWN,
1231 	MOUSE_BUTTON1DOWN | MOUSE_BUTTON2DOWN,
1232 	MOUSE_BUTTON2DOWN | MOUSE_BUTTON3DOWN,
1233 	MOUSE_BUTTON1DOWN | MOUSE_BUTTON2DOWN | MOUSE_BUTTON3DOWN
1234     };
1235     /* for Hitachi tablet */
1236     static int butmaphit[8] = {	/* MM HitTablet */
1237 	0,
1238 	MOUSE_BUTTON3DOWN,
1239 	MOUSE_BUTTON2DOWN,
1240 	MOUSE_BUTTON1DOWN,
1241 	MOUSE_BUTTON4DOWN,
1242 	MOUSE_BUTTON5DOWN,
1243 	MOUSE_BUTTON6DOWN,
1244 	MOUSE_BUTTON7DOWN,
1245     };
1246     static int           pBufP = 0;
1247     static unsigned char pBuf[8];
1248 
1249     debug("received char 0x%x",(int)rBuf);
1250 
1251     /*
1252      * Hack for resyncing: We check here for a package that is:
1253      *  a) illegal (detected by wrong data-package header)
1254      *  b) invalid (0x80 == -128 and that might be wrong for MouseSystems)
1255      *  c) bad header-package
1256      *
1257      * NOTE: b) is a voilation of the MouseSystems-Protocol, since values of
1258      *       -128 are allowed, but since they are very seldom we can easily
1259      *       use them as package-header with no button pressed.
1260      * NOTE/2: On a PS/2 mouse any byte is valid as a data byte. Furthermore,
1261      *         0x80 is not valid as a header byte. For a PS/2 mouse we skip
1262      *         checking data bytes.
1263      *         For resyncing a PS/2 mouse we require the two most significant
1264      *         bits in the header byte to be 0. These are the overflow bits,
1265      *         and in case of an overflow we actually lose sync. Overflows
1266      *         are very rare, however, and we quickly gain sync again after
1267      *         an overflow condition. This is the best we can do. (Actually,
1268      *         we could use bit 0x08 in the header byte for resyncing, since
1269      *         that bit is supposed to be always on, but nobody told
1270      *         Microsoft...)
1271      */
1272 
1273     if (pBufP != 0 && rodent.rtype != MOUSE_PROTO_PS2 &&
1274 	((rBuf & cur_proto[2]) != cur_proto[3] || rBuf == 0x80))
1275     {
1276 	pBufP = 0;		/* skip package */
1277     }
1278 
1279     if (pBufP == 0 && (rBuf & cur_proto[0]) != cur_proto[1])
1280 	return 0;
1281 
1282     /* is there an extra data byte? */
1283     if (pBufP >= cur_proto[4] && (rBuf & cur_proto[0]) != cur_proto[1])
1284     {
1285 	/*
1286 	 * Hack for Logitech MouseMan Mouse - Middle button
1287 	 *
1288 	 * Unfortunately this mouse has variable length packets: the standard
1289 	 * Microsoft 3 byte packet plus an optional 4th byte whenever the
1290 	 * middle button status changes.
1291 	 *
1292 	 * We have already processed the standard packet with the movement
1293 	 * and button info.  Now post an event message with the old status
1294 	 * of the left and right buttons and the updated middle button.
1295 	 */
1296 
1297 	/*
1298 	 * Even worse, different MouseMen and TrackMen differ in the 4th
1299 	 * byte: some will send 0x00/0x20, others 0x01/0x21, or even
1300 	 * 0x02/0x22, so I have to strip off the lower bits.
1301          *
1302          * [JCH-96/01/21]
1303          * HACK for ALPS "fourth button". (It's bit 0x10 of the "fourth byte"
1304          * and it is activated by tapping the glidepad with the finger! 8^)
1305          * We map it to bit bit3, and the reverse map in xf86Events just has
1306          * to be extended so that it is identified as Button 4. The lower
1307          * half of the reverse-map may remain unchanged.
1308 	 */
1309 
1310         /*
1311 	 * [KY-97/08/03]
1312 	 * Receive the fourth byte only when preceeding three bytes have
1313 	 * been detected (pBufP >= cur_proto[4]).  In the previous
1314 	 * versions, the test was pBufP == 0; thus, we may have mistakingly
1315 	 * received a byte even if we didn't see anything preceeding
1316 	 * the byte.
1317 	 */
1318 
1319 	if ((rBuf & cur_proto[5]) != cur_proto[6]) {
1320             pBufP = 0;
1321 	    return 0;
1322 	}
1323 
1324 	switch (rodent.rtype) {
1325 #if notyet
1326 	case MOUSE_PROTO_MARIQUA:
1327 	    /*
1328 	     * This mouse has 16! buttons in addition to the standard
1329 	     * three of them.  They return 0x10 though 0x1f in the
1330 	     * so-called `ten key' mode and 0x30 though 0x3f in the
1331 	     * `function key' mode.  As there are only 31 bits for
1332 	     * button state (including the standard three), we ignore
1333 	     * the bit 0x20 and don't distinguish the two modes.
1334 	     */
1335 	    act->dx = act->dy = act->dz = 0;
1336 	    act->obutton = act->button;
1337 	    rBuf &= 0x1f;
1338 	    act->button = (1 << (rBuf - 13))
1339                 | (act->obutton & (MOUSE_BUTTON1DOWN | MOUSE_BUTTON3DOWN));
1340 	    /*
1341 	     * FIXME: this is a button "down" event. There needs to be
1342 	     * a corresponding button "up" event... XXX
1343 	     */
1344 	    break;
1345 #endif /* notyet */
1346 
1347 	/*
1348 	 * IntelliMouse, NetMouse (including NetMouse Pro) and Mie Mouse
1349 	 * always send the fourth byte, whereas the fourth byte is
1350 	 * optional for GlidePoint and ThinkingMouse. The fourth byte
1351 	 * is also optional for MouseMan+ and FirstMouse+ in their
1352 	 * native mode. It is always sent if they are in the IntelliMouse
1353 	 * compatible mode.
1354 	 */
1355 	case MOUSE_PROTO_INTELLI:	/* IntelliMouse, NetMouse, Mie Mouse,
1356 					   MouseMan+ */
1357 	    act->dx = act->dy = 0;
1358 	    act->dz = (rBuf & 0x08) ? (rBuf & 0x0f) - 16 : (rBuf & 0x0f);
1359 	    act->obutton = act->button;
1360 	    act->button = butmapintelli[(rBuf & MOUSE_MSS_BUTTONS) >> 4]
1361 		| (act->obutton & (MOUSE_BUTTON1DOWN | MOUSE_BUTTON3DOWN));
1362 	    break;
1363 
1364 	default:
1365 	    act->dx = act->dy = act->dz = 0;
1366 	    act->obutton = act->button;
1367 	    act->button = butmapmss2[(rBuf & MOUSE_MSS_BUTTONS) >> 4]
1368 		| (act->obutton & (MOUSE_BUTTON1DOWN | MOUSE_BUTTON3DOWN));
1369 	    break;
1370 	}
1371 
1372 	act->flags = ((act->dx || act->dy || act->dz) ? MOUSE_POSCHANGED : 0)
1373 	    | (act->obutton ^ act->button);
1374         pBufP = 0;
1375 	return act->flags;
1376     }
1377 
1378     if (pBufP >= cur_proto[4])
1379 	pBufP = 0;
1380     pBuf[pBufP++] = rBuf;
1381     if (pBufP != cur_proto[4])
1382 	return 0;
1383 
1384     /*
1385      * assembly full package
1386      */
1387 
1388     debug("assembled full packet (len %d) %x,%x,%x,%x,%x,%x,%x,%x",
1389 	cur_proto[4],
1390 	pBuf[0], pBuf[1], pBuf[2], pBuf[3],
1391 	pBuf[4], pBuf[5], pBuf[6], pBuf[7]);
1392 
1393     act->dz = 0;
1394     act->obutton = act->button;
1395     switch (rodent.rtype)
1396     {
1397     case MOUSE_PROTO_MS:		/* Microsoft */
1398     case MOUSE_PROTO_LOGIMOUSEMAN:	/* MouseMan/TrackMan */
1399     case MOUSE_PROTO_X10MOUSEREM:	/* X10 MouseRemote */
1400 	act->button = act->obutton & MOUSE_BUTTON4DOWN;
1401 	if (rodent.flags & ChordMiddle)
1402 	    act->button |= ((pBuf[0] & MOUSE_MSS_BUTTONS) == MOUSE_MSS_BUTTONS)
1403 		? MOUSE_BUTTON2DOWN
1404 		: butmapmss[(pBuf[0] & MOUSE_MSS_BUTTONS) >> 4];
1405 	else
1406 	    act->button |= (act->obutton & MOUSE_BUTTON2DOWN)
1407 		| butmapmss[(pBuf[0] & MOUSE_MSS_BUTTONS) >> 4];
1408 
1409 	/* Send X10 btn events to remote client (ensure -128-+127 range) */
1410 	if ((rodent.rtype == MOUSE_PROTO_X10MOUSEREM) &&
1411 	    ((pBuf[0] & 0xFC) == 0x44) && (pBuf[2] == 0x3F)) {
1412 	    if (rodent.mremcfd >= 0) {
1413 		unsigned char key = (signed char)(((pBuf[0] & 0x03) << 6) |
1414 						  (pBuf[1] & 0x3F));
1415 		write( rodent.mremcfd, &key, 1 );
1416 	    }
1417 	    return 0;
1418 	}
1419 
1420 	act->dx = (char)(((pBuf[0] & 0x03) << 6) | (pBuf[1] & 0x3F));
1421 	act->dy = (char)(((pBuf[0] & 0x0C) << 4) | (pBuf[2] & 0x3F));
1422 	break;
1423 
1424     case MOUSE_PROTO_GLIDEPOINT:	/* GlidePoint */
1425     case MOUSE_PROTO_THINK:		/* ThinkingMouse */
1426     case MOUSE_PROTO_INTELLI:		/* IntelliMouse, NetMouse, Mie Mouse,
1427 					   MouseMan+ */
1428 	act->button = (act->obutton & (MOUSE_BUTTON2DOWN | MOUSE_BUTTON4DOWN))
1429             | butmapmss[(pBuf[0] & MOUSE_MSS_BUTTONS) >> 4];
1430 	act->dx = (char)(((pBuf[0] & 0x03) << 6) | (pBuf[1] & 0x3F));
1431 	act->dy = (char)(((pBuf[0] & 0x0C) << 4) | (pBuf[2] & 0x3F));
1432 	break;
1433 
1434     case MOUSE_PROTO_MSC:		/* MouseSystems Corp */
1435 #if notyet
1436     case MOUSE_PROTO_MARIQUA:		/* Mariqua */
1437 #endif
1438 	act->button = butmapmsc[(~pBuf[0]) & MOUSE_MSC_BUTTONS];
1439 	act->dx =    (char)(pBuf[1]) + (char)(pBuf[3]);
1440 	act->dy = - ((char)(pBuf[2]) + (char)(pBuf[4]));
1441 	break;
1442 
1443     case MOUSE_PROTO_HITTAB:		/* MM HitTablet */
1444 	act->button = butmaphit[pBuf[0] & 0x07];
1445 	act->dx = (pBuf[0] & MOUSE_MM_XPOSITIVE) ?   pBuf[1] : - pBuf[1];
1446 	act->dy = (pBuf[0] & MOUSE_MM_YPOSITIVE) ? - pBuf[2] :   pBuf[2];
1447 	break;
1448 
1449     case MOUSE_PROTO_MM:		/* MM Series */
1450     case MOUSE_PROTO_LOGI:		/* Logitech Mice */
1451 	act->button = butmapmsc[pBuf[0] & MOUSE_MSC_BUTTONS];
1452 	act->dx = (pBuf[0] & MOUSE_MM_XPOSITIVE) ?   pBuf[1] : - pBuf[1];
1453 	act->dy = (pBuf[0] & MOUSE_MM_YPOSITIVE) ? - pBuf[2] :   pBuf[2];
1454 	break;
1455 
1456     case MOUSE_PROTO_BUS:		/* Bus */
1457     case MOUSE_PROTO_INPORT:		/* InPort */
1458 	act->button = butmapmsc[(~pBuf[0]) & MOUSE_MSC_BUTTONS];
1459 	act->dx =   (char)pBuf[1];
1460 	act->dy = - (char)pBuf[2];
1461 	break;
1462 
1463     case MOUSE_PROTO_PS2:		/* PS/2 */
1464 	act->button = butmapps2[pBuf[0] & MOUSE_PS2_BUTTONS];
1465 	act->dx = (pBuf[0] & MOUSE_PS2_XNEG) ?    pBuf[1] - 256  :  pBuf[1];
1466 	act->dy = (pBuf[0] & MOUSE_PS2_YNEG) ?  -(pBuf[2] - 256) : -pBuf[2];
1467 	/*
1468 	 * Moused usually operates the psm driver at the operation level 1
1469 	 * which sends mouse data in MOUSE_PROTO_SYSMOUSE protocol.
1470 	 * The following code takes effect only when the user explicitly
1471 	 * requets the level 2 at which wheel movement and additional button
1472 	 * actions are encoded in model-dependent formats. At the level 0
1473 	 * the following code is no-op because the psm driver says the model
1474 	 * is MOUSE_MODEL_GENERIC.
1475 	 */
1476 	switch (rodent.hw.model) {
1477 	case MOUSE_MODEL_INTELLI:
1478 	case MOUSE_MODEL_NET:
1479 	    /* wheel data is in the fourth byte */
1480 	    act->dz = (char)pBuf[3];
1481 	    break;
1482 	case MOUSE_MODEL_MOUSEMANPLUS:
1483 	    if ((pBuf[0] & ~MOUSE_PS2_BUTTONS) == 0xc8) {
1484 		/* the extended data packet encodes button and wheel events */
1485 		act->dx = act->dy = 0;
1486 		act->dz = (pBuf[1] & MOUSE_PS2PLUS_ZNEG)
1487 		    ? (pBuf[2] & 0x0f) - 16 : (pBuf[2] & 0x0f);
1488 		act->button |= ((pBuf[2] & MOUSE_PS2PLUS_BUTTON4DOWN)
1489 		    ? MOUSE_BUTTON4DOWN : 0);
1490 	    } else {
1491 		/* preserve button states */
1492 		act->button |= act->obutton & MOUSE_EXTBUTTONS;
1493 	    }
1494 	    break;
1495 	case MOUSE_MODEL_GLIDEPOINT:
1496 	    /* `tapping' action */
1497 	    act->button |= ((pBuf[0] & MOUSE_PS2_TAP)) ? 0 : MOUSE_BUTTON4DOWN;
1498 	    break;
1499 	case MOUSE_MODEL_NETSCROLL:
1500 	    /* three addtional bytes encode button and wheel events */
1501 	    act->button |= (pBuf[3] & MOUSE_PS2_BUTTON3DOWN)
1502 		? MOUSE_BUTTON4DOWN : 0;
1503 	    act->dz = (pBuf[3] & MOUSE_PS2_XNEG) ? pBuf[4] - 256 : pBuf[4];
1504 	    break;
1505 	case MOUSE_MODEL_THINK:
1506 	    /* the fourth button state in the first byte */
1507 	    act->button |= (pBuf[0] & MOUSE_PS2_TAP) ? MOUSE_BUTTON4DOWN : 0;
1508 	    break;
1509 	case MOUSE_MODEL_GENERIC:
1510 	default:
1511 	    break;
1512 	}
1513 	break;
1514 
1515     case MOUSE_PROTO_SYSMOUSE:		/* sysmouse */
1516 	act->button = butmapmsc[(~pBuf[0]) & MOUSE_SYS_STDBUTTONS];
1517 	act->dx =    (char)(pBuf[1]) + (char)(pBuf[3]);
1518 	act->dy = - ((char)(pBuf[2]) + (char)(pBuf[4]));
1519 	if (rodent.level == 1) {
1520 	    act->dz = ((char)(pBuf[5] << 1) + (char)(pBuf[6] << 1))/2;
1521 	    act->button |= ((~pBuf[7] & MOUSE_SYS_EXTBUTTONS) << 3);
1522 	}
1523 	break;
1524 
1525     default:
1526 	return 0;
1527     }
1528     /*
1529      * We don't reset pBufP here yet, as there may be an additional data
1530      * byte in some protocols. See above.
1531      */
1532 
1533     /* has something changed? */
1534     act->flags = ((act->dx || act->dy || act->dz) ? MOUSE_POSCHANGED : 0)
1535 	| (act->obutton ^ act->button);
1536 
1537     if (rodent.flags & Emulate3Button) {
1538 	if (((act->flags & (MOUSE_BUTTON1DOWN | MOUSE_BUTTON3DOWN))
1539 	        == (MOUSE_BUTTON1DOWN | MOUSE_BUTTON3DOWN))
1540 	    && ((act->button & (MOUSE_BUTTON1DOWN | MOUSE_BUTTON3DOWN))
1541 	        == (MOUSE_BUTTON1DOWN | MOUSE_BUTTON3DOWN))) {
1542 	    act->button &= ~(MOUSE_BUTTON1DOWN | MOUSE_BUTTON3DOWN);
1543 	    act->button |= MOUSE_BUTTON2DOWN;
1544 	} else if ((act->obutton & MOUSE_BUTTON2DOWN)
1545 	    && ((act->button & (MOUSE_BUTTON1DOWN | MOUSE_BUTTON3DOWN))
1546 	        != (MOUSE_BUTTON1DOWN | MOUSE_BUTTON3DOWN))) {
1547 	    act->button &= ~(MOUSE_BUTTON1DOWN | MOUSE_BUTTON2DOWN
1548 			       | MOUSE_BUTTON3DOWN);
1549 	}
1550 	act->flags &= MOUSE_POSCHANGED;
1551 	act->flags |= act->obutton ^ act->button;
1552     }
1553 
1554     return act->flags;
1555 }
1556 
1557 /* phisical to logical button mapping */
1558 static int p2l[MOUSE_MAXBUTTON] = {
1559     MOUSE_BUTTON1DOWN, MOUSE_BUTTON2DOWN, MOUSE_BUTTON3DOWN, MOUSE_BUTTON4DOWN,
1560     MOUSE_BUTTON5DOWN, MOUSE_BUTTON6DOWN, MOUSE_BUTTON7DOWN, MOUSE_BUTTON8DOWN,
1561     0x00000100,        0x00000200,        0x00000400,        0x00000800,
1562     0x00001000,        0x00002000,        0x00004000,        0x00008000,
1563     0x00010000,        0x00020000,        0x00040000,        0x00080000,
1564     0x00100000,        0x00200000,        0x00400000,        0x00800000,
1565     0x01000000,        0x02000000,        0x04000000,        0x08000000,
1566     0x10000000,        0x20000000,        0x40000000,
1567 };
1568 
1569 static char *
1570 skipspace(char *s)
1571 {
1572     while(isspace(*s))
1573 	++s;
1574     return s;
1575 }
1576 
1577 static int
1578 r_installmap(char *arg)
1579 {
1580     int pbutton;
1581     int lbutton;
1582     char *s;
1583 
1584     while (*arg) {
1585 	arg = skipspace(arg);
1586 	s = arg;
1587 	while (isdigit(*arg))
1588 	    ++arg;
1589 	arg = skipspace(arg);
1590 	if ((arg <= s) || (*arg != '='))
1591 	    return FALSE;
1592 	lbutton = atoi(s);
1593 
1594 	arg = skipspace(++arg);
1595 	s = arg;
1596 	while (isdigit(*arg))
1597 	    ++arg;
1598 	if ((arg <= s) || (!isspace(*arg) && (*arg != '\0')))
1599 	    return FALSE;
1600 	pbutton = atoi(s);
1601 
1602 	if ((lbutton <= 0) || (lbutton > MOUSE_MAXBUTTON))
1603 	    return FALSE;
1604 	if ((pbutton <= 0) || (pbutton > MOUSE_MAXBUTTON))
1605 	    return FALSE;
1606 	p2l[pbutton - 1] = 1 << (lbutton - 1);
1607     }
1608 
1609     return TRUE;
1610 }
1611 
1612 static void
1613 r_map(mousestatus_t *act1, mousestatus_t *act2)
1614 {
1615     register int pb;
1616     register int pbuttons;
1617     int lbuttons;
1618 
1619     pbuttons = act1->button;
1620     lbuttons = 0;
1621 
1622     act2->obutton = act2->button;
1623     act2->dx = act1->dx;
1624     act2->dy = act1->dy;
1625     act2->dz = act1->dz;
1626 
1627     switch (rodent.zmap) {
1628     case 0:	/* do nothing */
1629 	break;
1630     case MOUSE_XAXIS:
1631 	if (act1->dz != 0) {
1632 	    act2->dx = act1->dz;
1633 	    act2->dz = 0;
1634 	}
1635 	break;
1636     case MOUSE_YAXIS:
1637 	if (act1->dz != 0) {
1638 	    act2->dy = act1->dz;
1639 	    act2->dz = 0;
1640 	}
1641 	break;
1642     default:	/* buttons */
1643 	pbuttons &= ~(rodent.zmap | (rodent.zmap << 1));
1644 	if (act1->dz < 0)
1645 	    pbuttons |= rodent.zmap;
1646 	else if (act1->dz > 0)
1647 	    pbuttons |= (rodent.zmap << 1);
1648 	act2->dz = 0;
1649 	break;
1650     }
1651 
1652     for (pb = 0; (pb < MOUSE_MAXBUTTON) && (pbuttons != 0); ++pb) {
1653 	lbuttons |= (pbuttons & 1) ? p2l[pb] : 0;
1654 	pbuttons >>= 1;
1655     }
1656     act2->button = lbuttons;
1657 
1658     act2->flags = ((act2->dx || act2->dy || act2->dz) ? MOUSE_POSCHANGED : 0)
1659 	| (act2->obutton ^ act2->button);
1660 }
1661 
1662 static void
1663 r_click(mousestatus_t *act)
1664 {
1665     struct mouse_info mouse;
1666     struct timeval tv;
1667     struct timeval tv1;
1668     struct timeval tv2;
1669     struct timezone tz;
1670     int button;
1671     int mask;
1672     int i;
1673 
1674     mask = act->flags & MOUSE_BUTTONS;
1675     if (mask == 0)
1676 	return;
1677 
1678     gettimeofday(&tv1, &tz);
1679     tv2.tv_sec = rodent.clickthreshold/1000;
1680     tv2.tv_usec = (rodent.clickthreshold%1000)*1000;
1681     timersub(&tv1, &tv2, &tv);
1682     debug("tv:  %ld %ld", tv.tv_sec, tv.tv_usec);
1683     button = MOUSE_BUTTON1DOWN;
1684     for (i = 0; (i < MOUSE_MAXBUTTON) && (mask != 0); ++i) {
1685         if (mask & 1) {
1686             if (act->button & button) {
1687                 /* the button is down */
1688     		debug("  :  %ld %ld",
1689 		    buttonstate[i].tv.tv_sec, buttonstate[i].tv.tv_usec);
1690 		if (timercmp(&tv, &buttonstate[i].tv, >)) {
1691                     buttonstate[i].tv.tv_sec = 0;
1692                     buttonstate[i].tv.tv_usec = 0;
1693                     buttonstate[i].count = 1;
1694                 } else {
1695                     ++buttonstate[i].count;
1696                 }
1697 	        mouse.u.event.value = buttonstate[i].count;
1698             } else {
1699                 /* the button is up */
1700                 buttonstate[i].tv = tv1;
1701 	        mouse.u.event.value = 0;
1702             }
1703 	    mouse.operation = MOUSE_BUTTON_EVENT;
1704 	    mouse.u.event.id = button;
1705 	    if (debug < 2)
1706 	        ioctl(rodent.cfd, CONS_MOUSECTL, &mouse);
1707 	    debug("button %d  count %d", i + 1, mouse.u.event.value);
1708         }
1709 	button <<= 1;
1710 	mask >>= 1;
1711     }
1712 }
1713 
1714 /* $XConsortium: posix_tty.c,v 1.3 95/01/05 20:42:55 kaleb Exp $ */
1715 /* $XFree86: xc/programs/Xserver/hw/xfree86/os-support/shared/posix_tty.c,v 3.4 1995/01/28 17:05:03 dawes Exp $ */
1716 /*
1717  * Copyright 1993 by David Dawes <dawes@physics.su.oz.au>
1718  *
1719  * Permission to use, copy, modify, distribute, and sell this software and its
1720  * documentation for any purpose is hereby granted without fee, provided that
1721  * the above copyright notice appear in all copies and that both that
1722  * copyright notice and this permission notice appear in supporting
1723  * documentation, and that the name of David Dawes
1724  * not be used in advertising or publicity pertaining to distribution of
1725  * the software without specific, written prior permission.
1726  * David Dawes makes no representations about the suitability of this
1727  * software for any purpose.  It is provided "as is" without express or
1728  * implied warranty.
1729  *
1730  * DAVID DAWES DISCLAIMS ALL WARRANTIES WITH REGARD TO
1731  * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
1732  * FITNESS, IN NO EVENT SHALL DAVID DAWES BE LIABLE FOR
1733  * ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
1734  * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
1735  * CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
1736  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1737  *
1738  */
1739 
1740 
1741 static void
1742 setmousespeed(int old, int new, unsigned cflag)
1743 {
1744 	struct termios tty;
1745 	char *c;
1746 
1747 	if (tcgetattr(rodent.mfd, &tty) < 0)
1748 	{
1749 		logwarn("unable to get status of mouse fd", 0);
1750 		return;
1751 	}
1752 
1753 	tty.c_iflag = IGNBRK | IGNPAR;
1754 	tty.c_oflag = 0;
1755 	tty.c_lflag = 0;
1756 	tty.c_cflag = (tcflag_t)cflag;
1757 	tty.c_cc[VTIME] = 0;
1758 	tty.c_cc[VMIN] = 1;
1759 
1760 	switch (old)
1761 	{
1762 	case 9600:
1763 		cfsetispeed(&tty, B9600);
1764 		cfsetospeed(&tty, B9600);
1765 		break;
1766 	case 4800:
1767 		cfsetispeed(&tty, B4800);
1768 		cfsetospeed(&tty, B4800);
1769 		break;
1770 	case 2400:
1771 		cfsetispeed(&tty, B2400);
1772 		cfsetospeed(&tty, B2400);
1773 		break;
1774 	case 1200:
1775 	default:
1776 		cfsetispeed(&tty, B1200);
1777 		cfsetospeed(&tty, B1200);
1778 	}
1779 
1780 	if (tcsetattr(rodent.mfd, TCSADRAIN, &tty) < 0)
1781 	{
1782 		logwarn("unable to set status of mouse fd", 0);
1783 		return;
1784 	}
1785 
1786 	switch (new)
1787 	{
1788 	case 9600:
1789 		c = "*q";
1790 		cfsetispeed(&tty, B9600);
1791 		cfsetospeed(&tty, B9600);
1792 		break;
1793 	case 4800:
1794 		c = "*p";
1795 		cfsetispeed(&tty, B4800);
1796 		cfsetospeed(&tty, B4800);
1797 		break;
1798 	case 2400:
1799 		c = "*o";
1800 		cfsetispeed(&tty, B2400);
1801 		cfsetospeed(&tty, B2400);
1802 		break;
1803 	case 1200:
1804 	default:
1805 		c = "*n";
1806 		cfsetispeed(&tty, B1200);
1807 		cfsetospeed(&tty, B1200);
1808 	}
1809 
1810 	if (rodent.rtype == MOUSE_PROTO_LOGIMOUSEMAN
1811 	    || rodent.rtype == MOUSE_PROTO_LOGI)
1812 	{
1813 		if (write(rodent.mfd, c, 2) != 2)
1814 		{
1815 			logwarn("unable to write to mouse fd", 0);
1816 			return;
1817 		}
1818 	}
1819 	usleep(100000);
1820 
1821 	if (tcsetattr(rodent.mfd, TCSADRAIN, &tty) < 0)
1822 		logwarn("unable to set status of mouse fd", 0);
1823 }
1824 
1825 /*
1826  * PnP COM device support
1827  *
1828  * It's a simplistic implementation, but it works :-)
1829  * KY, 31/7/97.
1830  */
1831 
1832 /*
1833  * Try to elicit a PnP ID as described in
1834  * Microsoft, Hayes: "Plug and Play External COM Device Specification,
1835  * rev 1.00", 1995.
1836  *
1837  * The routine does not fully implement the COM Enumerator as par Section
1838  * 2.1 of the document.  In particular, we don't have idle state in which
1839  * the driver software monitors the com port for dynamic connection or
1840  * removal of a device at the port, because `moused' simply quits if no
1841  * device is found.
1842  *
1843  * In addition, as PnP COM device enumeration procedure slightly has
1844  * changed since its first publication, devices which follow earlier
1845  * revisions of the above spec. may fail to respond if the rev 1.0
1846  * procedure is used. XXX
1847  */
1848 static int
1849 pnpwakeup1(void)
1850 {
1851     struct timeval timeout;
1852     fd_set fds;
1853     int i;
1854 
1855     /*
1856      * This is the procedure described in rev 1.0 of PnP COM device spec.
1857      * Unfortunately, some devices which comform to earlier revisions of
1858      * the spec gets confused and do not return the ID string...
1859      */
1860     debug("PnP COM device rev 1.0 probe...");
1861 
1862     /* port initialization (2.1.2) */
1863     ioctl(rodent.mfd, TIOCMGET, &i);
1864     i |= TIOCM_DTR;		/* DTR = 1 */
1865     i &= ~TIOCM_RTS;		/* RTS = 0 */
1866     ioctl(rodent.mfd, TIOCMSET, &i);
1867     usleep(240000);
1868 
1869     /*
1870      * The PnP COM device spec. dictates that the mouse must set DSR
1871      * in response to DTR (by hardware or by software) and that if DSR is
1872      * not asserted, the host computer should think that there is no device
1873      * at this serial port.  But there are some mice just don't do that...
1874      */
1875     ioctl(rodent.mfd, TIOCMGET, &i);
1876     debug("modem status 0%o", i);
1877     if ((i & TIOCM_DSR) == 0)
1878 	return FALSE;
1879 
1880     /* port setup, 1st phase (2.1.3) */
1881     setmousespeed(1200, 1200, (CS7 | CREAD | CLOCAL | HUPCL));
1882     i = TIOCM_DTR | TIOCM_RTS;	/* DTR = 0, RTS = 0 */
1883     ioctl(rodent.mfd, TIOCMBIC, &i);
1884     usleep(240000);
1885     i = TIOCM_DTR;		/* DTR = 1, RTS = 0 */
1886     ioctl(rodent.mfd, TIOCMBIS, &i);
1887     usleep(240000);
1888 
1889     /* wait for response, 1st phase (2.1.4) */
1890     i = FREAD;
1891     ioctl(rodent.mfd, TIOCFLUSH, &i);
1892     i = TIOCM_RTS;		/* DTR = 1, RTS = 1 */
1893     ioctl(rodent.mfd, TIOCMBIS, &i);
1894 
1895     /* try to read something */
1896     FD_ZERO(&fds);
1897     FD_SET(rodent.mfd, &fds);
1898     timeout.tv_sec = 0;
1899     timeout.tv_usec = 240000;
1900     if (select(FD_SETSIZE, &fds, NULL, NULL, &timeout) > 0) {
1901 	debug("pnpwakeup1(): valid response in first phase.");
1902 	return TRUE;
1903     } else {
1904 
1905 	/* port setup, 2nd phase (2.1.5) */
1906         i = TIOCM_DTR | TIOCM_RTS;	/* DTR = 0, RTS = 0 */
1907         ioctl(rodent.mfd, TIOCMBIC, &i);
1908         usleep(240000);
1909 
1910 	/* wait for respose, 2nd phase (2.1.6) */
1911         i = FREAD;
1912         ioctl(rodent.mfd, TIOCFLUSH, &i);
1913         i = TIOCM_DTR | TIOCM_RTS;	/* DTR = 1, RTS = 1 */
1914         ioctl(rodent.mfd, TIOCMBIS, &i);
1915 
1916         /* try to read something */
1917         FD_ZERO(&fds);
1918         FD_SET(rodent.mfd, &fds);
1919         timeout.tv_sec = 0;
1920         timeout.tv_usec = 240000;
1921         if (select(FD_SETSIZE, &fds, NULL, NULL, &timeout) > 0) {
1922 	    debug("pnpwakeup1(): valid response in second phase.");
1923 	    return TRUE;
1924 	}
1925     }
1926     return FALSE;
1927 }
1928 
1929 static int
1930 pnpwakeup2(void)
1931 {
1932     struct timeval timeout;
1933     fd_set fds;
1934     int i;
1935 
1936     /*
1937      * This is a simplified procedure; it simply toggles RTS.
1938      */
1939     debug("PnP COM device rev 0.9 probe...");
1940 
1941     ioctl(rodent.mfd, TIOCMGET, &i);
1942     i |= TIOCM_DTR;		/* DTR = 1 */
1943     i &= ~TIOCM_RTS;		/* RTS = 0 */
1944     ioctl(rodent.mfd, TIOCMSET, &i);
1945     usleep(240000);
1946 
1947     setmousespeed(1200, 1200, (CS7 | CREAD | CLOCAL | HUPCL));
1948 
1949     /* wait for respose */
1950     i = FREAD;
1951     ioctl(rodent.mfd, TIOCFLUSH, &i);
1952     i = TIOCM_DTR | TIOCM_RTS;	/* DTR = 1, RTS = 1 */
1953     ioctl(rodent.mfd, TIOCMBIS, &i);
1954 
1955     /* try to read something */
1956     FD_ZERO(&fds);
1957     FD_SET(rodent.mfd, &fds);
1958     timeout.tv_sec = 0;
1959     timeout.tv_usec = 240000;
1960     if (select(FD_SETSIZE, &fds, NULL, NULL, &timeout) > 0) {
1961 	debug("pnpwakeup2(): valid response.");
1962 	return TRUE;
1963     }
1964     return FALSE;
1965 }
1966 
1967 static int
1968 pnpgets(char *buf)
1969 {
1970     struct timeval timeout;
1971     fd_set fds;
1972     int begin;
1973     int i;
1974     char c;
1975 
1976     if (!pnpwakeup1() && !pnpwakeup2()) {
1977 	/*
1978 	 * According to PnP spec, we should set DTR = 1 and RTS = 0 while
1979 	 * in idle state.  But, `moused' shall set DTR = RTS = 1 and proceed,
1980 	 * assuming there is something at the port even if it didn't
1981 	 * respond to the PnP enumeration procedure.
1982 	 */
1983 disconnect_idle:
1984 	i = TIOCM_DTR | TIOCM_RTS;		/* DTR = 1, RTS = 1 */
1985 	ioctl(rodent.mfd, TIOCMBIS, &i);
1986 	return 0;
1987     }
1988 
1989     /* collect PnP COM device ID (2.1.7) */
1990     begin = -1;
1991     i = 0;
1992     usleep(240000);	/* the mouse must send `Begin ID' within 200msec */
1993     while (read(rodent.mfd, &c, 1) == 1) {
1994 	/* we may see "M", or "M3..." before `Begin ID' */
1995 	buf[i++] = c;
1996         if ((c == 0x08) || (c == 0x28)) {	/* Begin ID */
1997 	    debug("begin-id %02x", c);
1998 	    begin = i - 1;
1999 	    break;
2000         }
2001         debug("%c %02x", c, c);
2002 	if (i >= 256)
2003 	    break;
2004     }
2005     if (begin < 0) {
2006 	/* we haven't seen `Begin ID' in time... */
2007 	goto connect_idle;
2008     }
2009 
2010     ++c;			/* make it `End ID' */
2011     for (;;) {
2012         FD_ZERO(&fds);
2013         FD_SET(rodent.mfd, &fds);
2014         timeout.tv_sec = 0;
2015         timeout.tv_usec = 240000;
2016         if (select(FD_SETSIZE, &fds, NULL, NULL, &timeout) <= 0)
2017 	    break;
2018 
2019 	read(rodent.mfd, &buf[i], 1);
2020         if (buf[i++] == c)	/* End ID */
2021 	    break;
2022 	if (i >= 256)
2023 	    break;
2024     }
2025     if (begin > 0) {
2026 	i -= begin;
2027 	bcopy(&buf[begin], &buf[0], i);
2028     }
2029     /* string may not be human readable... */
2030     debug("len:%d, '%-*.*s'", i, i, i, buf);
2031 
2032     if (buf[i - 1] == c)
2033 	return i;		/* a valid PnP string */
2034 
2035     /*
2036      * According to PnP spec, we should set DTR = 1 and RTS = 0 while
2037      * in idle state.  But, `moused' shall leave the modem control lines
2038      * as they are. See above.
2039      */
2040 connect_idle:
2041 
2042     /* we may still have something in the buffer */
2043     return ((i > 0) ? i : 0);
2044 }
2045 
2046 static int
2047 pnpparse(pnpid_t *id, char *buf, int len)
2048 {
2049     char s[3];
2050     int offset;
2051     int sum = 0;
2052     int i, j;
2053 
2054     id->revision = 0;
2055     id->eisaid = NULL;
2056     id->serial = NULL;
2057     id->class = NULL;
2058     id->compat = NULL;
2059     id->description = NULL;
2060     id->neisaid = 0;
2061     id->nserial = 0;
2062     id->nclass = 0;
2063     id->ncompat = 0;
2064     id->ndescription = 0;
2065 
2066     if ((buf[0] != 0x28) && (buf[0] != 0x08)) {
2067 	/* non-PnP mice */
2068 	switch(buf[0]) {
2069 	default:
2070 	    return FALSE;
2071 	case 'M': /* Microsoft */
2072 	    id->eisaid = "PNP0F01";
2073 	    break;
2074 	case 'H': /* MouseSystems */
2075 	    id->eisaid = "PNP0F04";
2076 	    break;
2077 	}
2078 	id->neisaid = strlen(id->eisaid);
2079 	id->class = "MOUSE";
2080 	id->nclass = strlen(id->class);
2081 	debug("non-PnP mouse '%c'", buf[0]);
2082 	return TRUE;
2083     }
2084 
2085     /* PnP mice */
2086     offset = 0x28 - buf[0];
2087 
2088     /* calculate checksum */
2089     for (i = 0; i < len - 3; ++i) {
2090 	sum += buf[i];
2091 	buf[i] += offset;
2092     }
2093     sum += buf[len - 1];
2094     for (; i < len; ++i)
2095 	buf[i] += offset;
2096     debug("PnP ID string: '%*.*s'", len, len, buf);
2097 
2098     /* revision */
2099     buf[1] -= offset;
2100     buf[2] -= offset;
2101     id->revision = ((buf[1] & 0x3f) << 6) | (buf[2] & 0x3f);
2102     debug("PnP rev %d.%02d", id->revision / 100, id->revision % 100);
2103 
2104     /* EISA vender and product ID */
2105     id->eisaid = &buf[3];
2106     id->neisaid = 7;
2107 
2108     /* option strings */
2109     i = 10;
2110     if (buf[i] == '\\') {
2111         /* device serial # */
2112         for (j = ++i; i < len; ++i) {
2113             if (buf[i] == '\\')
2114 		break;
2115         }
2116 	if (i >= len)
2117 	    i -= 3;
2118 	if (i - j == 8) {
2119             id->serial = &buf[j];
2120             id->nserial = 8;
2121 	}
2122     }
2123     if (buf[i] == '\\') {
2124         /* PnP class */
2125         for (j = ++i; i < len; ++i) {
2126             if (buf[i] == '\\')
2127 		break;
2128         }
2129 	if (i >= len)
2130 	    i -= 3;
2131 	if (i > j + 1) {
2132             id->class = &buf[j];
2133             id->nclass = i - j;
2134         }
2135     }
2136     if (buf[i] == '\\') {
2137 	/* compatible driver */
2138         for (j = ++i; i < len; ++i) {
2139             if (buf[i] == '\\')
2140 		break;
2141         }
2142 	/*
2143 	 * PnP COM spec prior to v0.96 allowed '*' in this field,
2144 	 * it's not allowed now; just igore it.
2145 	 */
2146 	if (buf[j] == '*')
2147 	    ++j;
2148 	if (i >= len)
2149 	    i -= 3;
2150 	if (i > j + 1) {
2151             id->compat = &buf[j];
2152             id->ncompat = i - j;
2153         }
2154     }
2155     if (buf[i] == '\\') {
2156 	/* product description */
2157         for (j = ++i; i < len; ++i) {
2158             if (buf[i] == ';')
2159 		break;
2160         }
2161 	if (i >= len)
2162 	    i -= 3;
2163 	if (i > j + 1) {
2164             id->description = &buf[j];
2165             id->ndescription = i - j;
2166         }
2167     }
2168 
2169     /* checksum exists if there are any optional fields */
2170     if ((id->nserial > 0) || (id->nclass > 0)
2171 	|| (id->ncompat > 0) || (id->ndescription > 0)) {
2172         debug("PnP checksum: 0x%X", sum);
2173         sprintf(s, "%02X", sum & 0x0ff);
2174         if (strncmp(s, &buf[len - 3], 2) != 0) {
2175 #if 0
2176             /*
2177 	     * I found some mice do not comply with the PnP COM device
2178 	     * spec regarding checksum... XXX
2179 	     */
2180             logwarnx("PnP checksum error", 0);
2181 	    return FALSE;
2182 #endif
2183         }
2184     }
2185 
2186     return TRUE;
2187 }
2188 
2189 static symtab_t *
2190 pnpproto(pnpid_t *id)
2191 {
2192     symtab_t *t;
2193     int i, j;
2194 
2195     if (id->nclass > 0)
2196 	if (strncmp(id->class, "MOUSE", id->nclass) != 0)
2197 	    /* this is not a mouse! */
2198 	    return NULL;
2199 
2200     if (id->neisaid > 0) {
2201         t = gettoken(pnpprod, id->eisaid, id->neisaid);
2202 	if (t->val != MOUSE_PROTO_UNKNOWN)
2203             return t;
2204     }
2205 
2206     /*
2207      * The 'Compatible drivers' field may contain more than one
2208      * ID separated by ','.
2209      */
2210     if (id->ncompat <= 0)
2211 	return NULL;
2212     for (i = 0; i < id->ncompat; ++i) {
2213         for (j = i; id->compat[i] != ','; ++i)
2214             if (i >= id->ncompat)
2215 		break;
2216         if (i > j) {
2217             t = gettoken(pnpprod, id->compat + j, i - j);
2218 	    if (t->val != MOUSE_PROTO_UNKNOWN)
2219                 return t;
2220 	}
2221     }
2222 
2223     return NULL;
2224 }
2225 
2226 /* name/val mapping */
2227 
2228 static symtab_t *
2229 gettoken(symtab_t *tab, char *s, int len)
2230 {
2231     int i;
2232 
2233     for (i = 0; tab[i].name != NULL; ++i) {
2234 	if (strncmp(tab[i].name, s, len) == 0)
2235 	    break;
2236     }
2237     return &tab[i];
2238 }
2239 
2240 static char *
2241 gettokenname(symtab_t *tab, int val)
2242 {
2243     int i;
2244 
2245     for (i = 0; tab[i].name != NULL; ++i) {
2246 	if (tab[i].val == val)
2247 	    return tab[i].name;
2248     }
2249     return NULL;
2250 }
2251 
2252 static void
2253 mremote_serversetup()
2254 {
2255     struct sockaddr_un ad;
2256 
2257     /* Open a UNIX domain stream socket to listen for mouse remote clients */
2258     unlink(_PATH_MOUSEREMOTE);
2259 
2260     if ( (rodent.mremsfd = socket(AF_UNIX, SOCK_STREAM, 0)) < 0)
2261 	logerrx(1, "unable to create unix domain socket %s",_PATH_MOUSEREMOTE);
2262 
2263     umask(0111);
2264 
2265     bzero(&ad, sizeof(ad));
2266     ad.sun_family = AF_UNIX;
2267     strcpy(ad.sun_path, _PATH_MOUSEREMOTE);
2268 #ifndef SUN_LEN
2269 #define SUN_LEN(unp) ( ((char *)(unp)->sun_path - (char *)(unp)) + \
2270                        strlen((unp)->path) )
2271 #endif
2272     if (bind(rodent.mremsfd, (struct sockaddr *) &ad, SUN_LEN(&ad)) < 0)
2273 	logerrx(1, "unable to bind unix domain socket %s", _PATH_MOUSEREMOTE);
2274 
2275     listen(rodent.mremsfd, 1);
2276 }
2277 
2278 static void
2279 mremote_clientchg(int add)
2280 {
2281     struct sockaddr_un ad;
2282     int ad_len, fd;
2283 
2284     if (rodent.rtype != MOUSE_PROTO_X10MOUSEREM)
2285 	return;
2286 
2287     if ( add ) {
2288 	/*  Accept client connection, if we don't already have one  */
2289 	ad_len = sizeof(ad);
2290 	fd = accept(rodent.mremsfd, (struct sockaddr *) &ad, &ad_len);
2291 	if (fd < 0)
2292 	    logwarnx("failed accept on mouse remote socket");
2293 
2294 	if ( rodent.mremcfd < 0 ) {
2295 	    rodent.mremcfd = fd;
2296 	    debug("remote client connect...accepted");
2297 	}
2298 	else {
2299 	    close(fd);
2300 	    debug("another remote client connect...disconnected");
2301 	}
2302     }
2303     else {
2304 	/* Client disconnected */
2305 	debug("remote client disconnected");
2306 	close( rodent.mremcfd );
2307 	rodent.mremcfd = -1;
2308     }
2309 }
2310 
2311 
2312