cdcontrol.c revision 84261 
1/*
2 * Compact Disc Control Utility by Serge V. Vakulenko <vak@cronyx.ru>.
3 * Based on the non-X based CD player by Jean-Marc Zucconi and
4 * Andrey A. Chernov.
5 *
6 * Fixed and further modified on 5-Sep-1995 by Jukka Ukkonen <jau@funet.fi>.
7 *
8 * 11-Sep-1995: Jukka A. Ukkonen <jau@funet.fi>
9 *              A couple of further fixes to my own earlier "fixes".
10 *
11 * 18-Sep-1995: Jukka A. Ukkonen <jau@funet.fi>
12 *              Added an ability to specify addresses relative to the
13 *              beginning of a track. This is in fact a variation of
14 *              doing the simple play_msf() call.
15 *
16 * 11-Oct-1995: Serge V.Vakulenko <vak@cronyx.ru>
17 *              New eject algorithm.
18 *              Some code style reformatting.
19 */
20
21#ifndef lint
22static const char rcsid[] =
23  "$FreeBSD: head/usr.sbin/cdcontrol/cdcontrol.c 84261 2001-10-01 08:43:58Z obrien $";
24#endif /* not lint */
25
26#include <sys/cdio.h>
27#include <sys/file.h>
28#include <sys/ioctl.h>
29#include <sys/param.h>
30#include <ctype.h>
31#include <err.h>
32#include <errno.h>
33#include <histedit.h>
34#include <paths.h>
35#include <stdio.h>
36#include <stdlib.h>
37#include <string.h>
38#include <unistd.h>
39#include <vis.h>
40
41#define VERSION "2.0"
42
43#define ASTS_INVALID    0x00  /* Audio status byte not valid */
44#define ASTS_PLAYING    0x11  /* Audio play operation in progress */
45#define ASTS_PAUSED     0x12  /* Audio play operation paused */
46#define ASTS_COMPLETED  0x13  /* Audio play operation successfully completed */
47#define ASTS_ERROR      0x14  /* Audio play operation stopped due to error */
48#define ASTS_VOID       0x15  /* No current audio status to return */
49
50#ifndef DEFAULT_CD_DRIVE
51#  define DEFAULT_CD_DRIVE  "/dev/cd0c"
52#endif
53
54#ifndef DEFAULT_CD_PARTITION
55#  define DEFAULT_CD_PARTITION  "c"
56#endif
57
58#define CMD_DEBUG       1
59#define CMD_EJECT       2
60#define CMD_HELP        3
61#define CMD_INFO        4
62#define CMD_PAUSE       5
63#define CMD_PLAY        6
64#define CMD_QUIT        7
65#define CMD_RESUME      8
66#define CMD_STOP        9
67#define CMD_VOLUME      10
68#define CMD_CLOSE       11
69#define CMD_RESET       12
70#define CMD_SET         13
71#define CMD_STATUS      14
72#define CMD_CDID        15
73#define CMD_NEXT        16
74#define CMD_PREVIOUS    17
75#define STATUS_AUDIO    0x1
76#define STATUS_MEDIA    0x2
77#define STATUS_VOLUME   0x4
78
79struct cmdtab {
80	int command;
81	char *name;
82	unsigned  min;
83	char *args;
84} cmdtab[] = {
85{ CMD_CLOSE,    "close",        1, "" },
86{ CMD_DEBUG,    "debug",        1, "on | off" },
87{ CMD_EJECT,    "eject",        1, "" },
88{ CMD_HELP,     "?",            1, 0 },
89{ CMD_HELP,     "help",         1, "" },
90{ CMD_INFO,     "info",         1, "" },
91{ CMD_NEXT,     "next",         1, "" },
92{ CMD_PAUSE,    "pause",        2, "" },
93{ CMD_PLAY,     "play",         1, "min1:sec1[.fram1] [min2:sec2[.fram2]]" },
94{ CMD_PLAY,     "play",         1, "track1[.index1] [track2[.index2]]" },
95{ CMD_PLAY,     "play",         1, "tr1 m1:s1[.f1] [[tr2] [m2:s2[.f2]]]" },
96{ CMD_PLAY,     "play",         1, "[#block [len]]" },
97{ CMD_PREVIOUS, "previous",     2, "" },
98{ CMD_QUIT,     "quit",         1, "" },
99{ CMD_RESET,    "reset",        4, "" },
100{ CMD_RESUME,   "resume",       1, "" },
101{ CMD_SET,      "set",          2, "msf | lba" },
102{ CMD_STATUS,   "status",       1, "[audio | media | volume]" },
103{ CMD_STOP,     "stop",         3, "" },
104{ CMD_VOLUME,   "volume",       1, "<l> <r> | left | right | mute | mono | stereo" },
105{ CMD_CDID,     "cdid",         2, "" },
106{ 0, }
107};
108
109struct cd_toc_entry     toc_buffer[100];
110
111const char      *cdname;
112int             fd = -1;
113int             verbose = 1;
114int             msf = 1;
115
116int             setvol __P((int, int));
117int             read_toc_entrys __P((int));
118int             play_msf __P((int, int, int, int, int, int));
119int             play_track __P((int, int, int, int));
120int             get_vol __P((int *, int *));
121int             status __P((int *, int *, int *, int *));
122int             open_cd __P((void));
123int             next_prev __P((char *arg, int));
124int             play __P((char *arg));
125int             info __P((char *arg));
126int             cdid __P((void));
127int             pstatus __P((char *arg));
128char            *input __P((int *));
129void            prtrack __P((struct cd_toc_entry *e, int lastflag));
130void            lba2msf __P((unsigned long lba,
131                            u_char *m, u_char *s, u_char *f));
132unsigned int    msf2lba __P((u_char m, u_char s, u_char f));
133int             play_blocks __P((int blk, int len));
134int             run __P((int cmd, char *arg));
135char            *parse __P((char *buf, int *cmd));
136
137void help ()
138{
139	struct cmdtab *c;
140	char *s, n;
141	int i;
142
143	for (c=cmdtab; c->name; ++c) {
144		if (! c->args)
145			continue;
146		printf("\t");
147		for (i = c->min, s = c->name; *s; s++, i--) {
148			if (i > 0)
149				n = toupper(*s);
150			else
151				n = *s;
152			putchar(n);
153		}
154		if (*c->args)
155			printf (" %s", c->args);
156		printf ("\n");
157	}
158	printf ("\n\tThe word \"play\" is not required for the play commands.\n");
159	printf ("\tThe plain target address is taken as a synonym for play.\n");
160}
161
162void usage ()
163{
164	fprintf (stderr, "usage: cdcontrol [-sv] [-f device] [command ...]\n");
165	exit (1);
166}
167
168char *use_cdrom_instead(char *old_envvar)
169{
170	char *device;
171
172	device = getenv(old_envvar);
173	if (device)
174		warnx("%s environment variable deprecated, "
175		    "please use CDROM in the future.", old_envvar);
176	return device;
177}
178
179
180int main (int argc, char **argv)
181{
182	int cmd;
183	char *arg;
184
185	for (;;) {
186		switch (getopt (argc, argv, "svhf:")) {
187		case EOF:
188			break;
189		case 's':
190			verbose = 0;
191			continue;
192		case 'v':
193			verbose = 2;
194			continue;
195		case 'f':
196			cdname = optarg;
197			continue;
198		case 'h':
199		default:
200			usage ();
201		}
202		break;
203	}
204	argc -= optind;
205	argv += optind;
206
207	if (argc > 0 && ! strcasecmp (*argv, "help"))
208		usage ();
209
210	if (! cdname) {
211		cdname = getenv("CDROM");
212	}
213
214	if (! cdname)
215		cdname = use_cdrom_instead("MUSIC_CD");
216	if (! cdname)
217		cdname = use_cdrom_instead("CD_DRIVE");
218	if (! cdname)
219		cdname = use_cdrom_instead("DISC");
220	if (! cdname)
221		cdname = use_cdrom_instead("CDPLAY");
222
223	if (! cdname) {
224		cdname = DEFAULT_CD_DRIVE;
225		warnx("no CD device name specified, defaulting to %s", cdname);
226	}
227
228	if (argc > 0) {
229		char buf[80], *p;
230		int len;
231
232		for (p=buf; argc-->0; ++argv) {
233			len = strlen (*argv);
234
235			if (p + len >= buf + sizeof (buf) - 1)
236				usage ();
237
238			if (p > buf)
239				*p++ = ' ';
240
241			strcpy (p, *argv);
242			p += len;
243		}
244		*p = 0;
245		arg = parse (buf, &cmd);
246		return (run (cmd, arg));
247	}
248
249	if (verbose == 1)
250		verbose = isatty (0);
251
252	if (verbose) {
253		printf ("Compact Disc Control utility, version %s\n", VERSION);
254		printf ("Type `?' for command list\n\n");
255	}
256
257	for (;;) {
258		arg = input (&cmd);
259		if (run (cmd, arg) < 0) {
260			if (verbose)
261				warn(NULL);
262			close (fd);
263			fd = -1;
264		}
265		fflush (stdout);
266	}
267}
268
269int run (int cmd, char *arg)
270{
271	int l, r, rc;
272
273	switch (cmd) {
274
275	case CMD_QUIT:
276		exit (0);
277
278	case CMD_INFO:
279		if (fd < 0 && ! open_cd ())
280			return (0);
281
282		return info (arg);
283
284	case CMD_CDID:
285		if (fd < 0 && ! open_cd ())
286			return (0);
287
288		return cdid ();
289
290	case CMD_STATUS:
291		if (fd < 0 && ! open_cd ())
292			return (0);
293
294		return pstatus (arg);
295
296	case CMD_NEXT:
297	case CMD_PREVIOUS:
298		if (fd < 0 && ! open_cd ())
299			return (0);
300
301		while (isspace (*arg))
302			arg++;
303
304		return next_prev (arg, cmd);
305
306	case CMD_PAUSE:
307		if (fd < 0 && ! open_cd ())
308			return (0);
309
310		return ioctl (fd, CDIOCPAUSE);
311
312	case CMD_RESUME:
313		if (fd < 0 && ! open_cd ())
314			return (0);
315
316		return ioctl (fd, CDIOCRESUME);
317
318	case CMD_STOP:
319		if (fd < 0 && ! open_cd ())
320			return (0);
321
322		rc = ioctl (fd, CDIOCSTOP);
323
324		(void) ioctl (fd, CDIOCALLOW);
325
326		return (rc);
327
328	case CMD_RESET:
329		if (fd < 0 && ! open_cd ())
330			return (0);
331
332		rc = ioctl (fd, CDIOCRESET);
333		if (rc < 0)
334			return rc;
335		close(fd);
336		fd = -1;
337		return (0);
338
339	case CMD_DEBUG:
340		if (fd < 0 && ! open_cd ())
341			return (0);
342
343		if (! strcasecmp (arg, "on"))
344			return ioctl (fd, CDIOCSETDEBUG);
345
346		if (! strcasecmp (arg, "off"))
347			return ioctl (fd, CDIOCCLRDEBUG);
348
349		warnx("invalid command arguments");
350
351		return (0);
352
353	case CMD_EJECT:
354		if (fd < 0 && ! open_cd ())
355			return (0);
356
357		(void) ioctl (fd, CDIOCALLOW);
358		rc = ioctl (fd, CDIOCEJECT);
359		if (rc < 0)
360			return (rc);
361		return (0);
362
363	case CMD_CLOSE:
364		if (fd < 0 && ! open_cd ())
365			return (0);
366
367		(void) ioctl (fd, CDIOCALLOW);
368		rc = ioctl (fd, CDIOCCLOSE);
369		if (rc < 0)
370			return (rc);
371		close(fd);
372		fd = -1;
373		return (0);
374
375	case CMD_PLAY:
376		if (fd < 0 && ! open_cd ())
377			return (0);
378
379		while (isspace (*arg))
380			arg++;
381
382		return play (arg);
383
384	case CMD_SET:
385		if (! strcasecmp (arg, "msf"))
386			msf = 1;
387		else if (! strcasecmp (arg, "lba"))
388			msf = 0;
389		else
390			warnx("invalid command arguments");
391		return (0);
392
393	case CMD_VOLUME:
394		if (fd < 0 && !open_cd ())
395			return (0);
396
397		if (! strncasecmp (arg, "left", strlen(arg)))
398			return ioctl (fd, CDIOCSETLEFT);
399
400		if (! strncasecmp (arg, "right", strlen(arg)))
401			return ioctl (fd, CDIOCSETRIGHT);
402
403		if (! strncasecmp (arg, "mono", strlen(arg)))
404			return ioctl (fd, CDIOCSETMONO);
405
406		if (! strncasecmp (arg, "stereo", strlen(arg)))
407			return ioctl (fd, CDIOCSETSTERIO);
408
409		if (! strncasecmp (arg, "mute", strlen(arg)))
410			return ioctl (fd, CDIOCSETMUTE);
411
412		if (2 != sscanf (arg, "%d %d", &l, &r)) {
413			warnx("invalid command arguments");
414			return (0);
415		}
416
417		return setvol (l, r);
418
419	default:
420	case CMD_HELP:
421		help ();
422		return (0);
423
424	}
425}
426
427int play (char *arg)
428{
429	struct ioc_toc_header h;
430	int rc, n, start, end = 0, istart = 1, iend = 1;
431
432	rc = ioctl (fd, CDIOREADTOCHEADER, &h);
433
434	if (rc < 0)
435		return (rc);
436
437	n = h.ending_track - h.starting_track + 1;
438	rc = read_toc_entrys ((n + 1) * sizeof (struct cd_toc_entry));
439
440	if (rc < 0)
441		return (rc);
442
443	if (! arg || ! *arg) {
444		/* Play the whole disc */
445		if (msf)
446			return play_blocks (0, msf2lba (toc_buffer[n].addr.msf.minute,
447							toc_buffer[n].addr.msf.second,
448							toc_buffer[n].addr.msf.frame));
449		else
450			return play_blocks (0, ntohl(toc_buffer[n].addr.lba));
451	}
452
453	if (strchr (arg, '#')) {
454		/* Play block #blk [ len ] */
455		int blk, len = 0;
456
457		if (2 != sscanf (arg, "#%d%d", &blk, &len) &&
458		    1 != sscanf (arg, "#%d", &blk))
459			goto Clean_up;
460
461		if (len == 0) {
462			if (msf)
463				len = msf2lba (toc_buffer[n].addr.msf.minute,
464					       toc_buffer[n].addr.msf.second,
465					       toc_buffer[n].addr.msf.frame) - blk;
466			else
467				len = ntohl(toc_buffer[n].addr.lba) - blk;
468		}
469		return play_blocks (blk, len);
470	}
471
472	if (strchr (arg, ':')) {
473		/*
474		 * Play MSF m1:s1 [ .f1 ] [ m2:s2 [ .f2 ] ]
475		 *
476		 * Will now also undestand timed addresses relative
477		 * to the beginning of a track in the form...
478		 *
479		 *      tr1 m1:s1[.f1] [[tr2] [m2:s2[.f2]]]
480		 */
481		unsigned tr1, tr2;
482		unsigned m1, m2, s1, s2, f1, f2;
483		unsigned char tm, ts, tf;
484
485		tr2 = m2 = s2 = f2 = f1 = 0;
486		if (8 == sscanf (arg, "%d %d:%d.%d %d %d:%d.%d",
487		    &tr1, &m1, &s1, &f1, &tr2, &m2, &s2, &f2))
488			goto Play_Relative_Addresses;
489
490		tr2 = m2 = s2 = f2 = f1 = 0;
491		if (7 == sscanf (arg, "%d %d:%d %d %d:%d.%d",
492		    &tr1, &m1, &s1, &tr2, &m2, &s2, &f2))
493			goto Play_Relative_Addresses;
494
495		tr2 = m2 = s2 = f2 = f1 = 0;
496		if (7 == sscanf (arg, "%d %d:%d.%d %d %d:%d",
497		    &tr1, &m1, &s1, &f1, &tr2, &m2, &s2))
498			goto Play_Relative_Addresses;
499
500		tr2 = m2 = s2 = f2 = f1 = 0;
501		if (7 == sscanf (arg, "%d %d:%d.%d %d:%d.%d",
502		    &tr1, &m1, &s1, &f1, &m2, &s2, &f2))
503			goto Play_Relative_Addresses;
504
505		tr2 = m2 = s2 = f2 = f1 = 0;
506		if (6 == sscanf (arg, "%d %d:%d.%d %d:%d",
507		    &tr1, &m1, &s1, &f1, &m2, &s2))
508			goto Play_Relative_Addresses;
509
510		tr2 = m2 = s2 = f2 = f1 = 0;
511		if (6 == sscanf (arg, "%d %d:%d %d:%d.%d",
512		    &tr1, &m1, &s1, &m2, &s2, &f2))
513			goto Play_Relative_Addresses;
514
515		tr2 = m2 = s2 = f2 = f1 = 0;
516		if (6 == sscanf (arg, "%d %d:%d.%d %d %d",
517		    &tr1, &m1, &s1, &f1, &tr2, &m2))
518			goto Play_Relative_Addresses;
519
520		tr2 = m2 = s2 = f2 = f1 = 0;
521		if (5 == sscanf (arg, "%d %d:%d %d:%d", &tr1, &m1, &s1, &m2, &s2))
522			goto Play_Relative_Addresses;
523
524		tr2 = m2 = s2 = f2 = f1 = 0;
525		if (5 == sscanf (arg, "%d %d:%d %d %d",
526		    &tr1, &m1, &s1, &tr2, &m2))
527			goto Play_Relative_Addresses;
528
529		tr2 = m2 = s2 = f2 = f1 = 0;
530		if (5 == sscanf (arg, "%d %d:%d.%d %d",
531		    &tr1, &m1, &s1, &f1, &tr2))
532			goto Play_Relative_Addresses;
533
534		tr2 = m2 = s2 = f2 = f1 = 0;
535		if (4 == sscanf (arg, "%d %d:%d %d", &tr1, &m1, &s1, &tr2))
536			goto Play_Relative_Addresses;
537
538		tr2 = m2 = s2 = f2 = f1 = 0;
539		if (4 == sscanf (arg, "%d %d:%d.%d", &tr1, &m1, &s1, &f1))
540			goto Play_Relative_Addresses;
541
542		tr2 = m2 = s2 = f2 = f1 = 0;
543		if (3 == sscanf (arg, "%d %d:%d", &tr1, &m1, &s1))
544			goto Play_Relative_Addresses;
545
546		tr2 = m2 = s2 = f2 = f1 = 0;
547		goto Try_Absolute_Timed_Addresses;
548
549Play_Relative_Addresses:
550		if (! tr1)
551			tr1 = 1;
552		else if (tr1 > n)
553			tr1 = n;
554
555		if (msf) {
556			tm = toc_buffer[tr1].addr.msf.minute;
557			ts = toc_buffer[tr1].addr.msf.second;
558			tf = toc_buffer[tr1].addr.msf.frame;
559		} else
560			lba2msf(ntohl(toc_buffer[tr1].addr.lba),
561				&tm, &ts, &tf);
562		if ((m1 > tm)
563		    || ((m1 == tm)
564		    && ((s1 > ts)
565		    || ((s1 == ts)
566		    && (f1 > tf))))) {
567			printf ("Track %d is not that long.\n", tr1);
568			return (0);
569		}
570
571		tr1--;
572
573		f1 += tf;
574		if (f1 >= 75) {
575			s1 += f1 / 75;
576			f1 %= 75;
577		}
578
579		s1 += ts;
580		if (s1 >= 60) {
581			m1 += s1 / 60;
582			s1 %= 60;
583		}
584
585		m1 += tm;
586
587		if (! tr2) {
588			if (m2 || s2 || f2) {
589				tr2 = tr1;
590				f2 += f1;
591				if (f2 >= 75) {
592					s2 += f2 / 75;
593					f2 %= 75;
594				}
595
596				s2 += s1;
597				if (s2 > 60) {
598					m2 += s2 / 60;
599					s2 %= 60;
600				}
601
602				m2 += m1;
603			} else {
604				tr2 = n;
605				if (msf) {
606					m2 = toc_buffer[n].addr.msf.minute;
607					s2 = toc_buffer[n].addr.msf.second;
608					f2 = toc_buffer[n].addr.msf.frame;
609				} else {
610					lba2msf(ntohl(toc_buffer[n].addr.lba),
611						&tm, &ts, &tf);
612					m2 = tm;
613					s2 = ts;
614					f2 = tf;
615				}
616			}
617		} else if (tr2 > n) {
618			tr2 = n;
619			m2 = s2 = f2 = 0;
620		} else {
621			if (m2 || s2 || f2)
622				tr2--;
623			if (msf) {
624				tm = toc_buffer[tr2].addr.msf.minute;
625				ts = toc_buffer[tr2].addr.msf.second;
626				tf = toc_buffer[tr2].addr.msf.frame;
627			} else
628				lba2msf(ntohl(toc_buffer[tr2].addr.lba),
629					&tm, &ts, &tf);
630			f2 += tf;
631			if (f2 >= 75) {
632				s2 += f2 / 75;
633				f2 %= 75;
634			}
635
636			s2 += ts;
637			if (s2 > 60) {
638				m2 += s2 / 60;
639				s2 %= 60;
640			}
641
642			m2 += tm;
643		}
644
645		if (msf) {
646			tm = toc_buffer[n].addr.msf.minute;
647			ts = toc_buffer[n].addr.msf.second;
648			tf = toc_buffer[n].addr.msf.frame;
649		} else
650			lba2msf(ntohl(toc_buffer[n].addr.lba),
651				&tm, &ts, &tf);
652		if ((tr2 < n)
653		    && ((m2 > tm)
654		    || ((m2 == tm)
655		    && ((s2 > ts)
656		    || ((s2 == ts)
657		    && (f2 > tf)))))) {
658			printf ("The playing time of the disc is not that long.\n");
659			return (0);
660		}
661		return (play_msf (m1, s1, f1, m2, s2, f2));
662
663Try_Absolute_Timed_Addresses:
664		if (6 != sscanf (arg, "%d:%d.%d%d:%d.%d",
665			&m1, &s1, &f1, &m2, &s2, &f2) &&
666		    5 != sscanf (arg, "%d:%d.%d%d:%d", &m1, &s1, &f1, &m2, &s2) &&
667		    5 != sscanf (arg, "%d:%d%d:%d.%d", &m1, &s1, &m2, &s2, &f2) &&
668		    3 != sscanf (arg, "%d:%d.%d", &m1, &s1, &f1) &&
669		    4 != sscanf (arg, "%d:%d%d:%d", &m1, &s1, &m2, &s2) &&
670		    2 != sscanf (arg, "%d:%d", &m1, &s1))
671			goto Clean_up;
672
673		if (m2 == 0) {
674			if (msf) {
675				m2 = toc_buffer[n].addr.msf.minute;
676				s2 = toc_buffer[n].addr.msf.second;
677				f2 = toc_buffer[n].addr.msf.frame;
678			} else {
679				lba2msf(ntohl(toc_buffer[n].addr.lba),
680					&tm, &ts, &tf);
681				m2 = tm;
682				s2 = ts;
683				f2 = tf;
684			}
685		}
686		return play_msf (m1, s1, f1, m2, s2, f2);
687	}
688
689	/*
690	 * Play track trk1 [ .idx1 ] [ trk2 [ .idx2 ] ]
691	 */
692	if (4 != sscanf (arg, "%d.%d%d.%d", &start, &istart, &end, &iend) &&
693	    3 != sscanf (arg, "%d.%d%d", &start, &istart, &end) &&
694	    3 != sscanf (arg, "%d%d.%d", &start, &end, &iend) &&
695	    2 != sscanf (arg, "%d.%d", &start, &istart) &&
696	    2 != sscanf (arg, "%d%d", &start, &end) &&
697	    1 != sscanf (arg, "%d", &start))
698		goto Clean_up;
699
700	if (end == 0)
701		end = n;
702	return (play_track (start, istart, end, iend));
703
704Clean_up:
705	warnx("invalid command arguments");
706	return (0);
707}
708
709int next_prev (char *arg, int cmd)
710{
711	struct ioc_toc_header h;
712	int dir, junk, n, off, rc, trk;
713
714	dir = (cmd == CMD_NEXT) ? 1 : -1;
715	rc = ioctl (fd, CDIOREADTOCHEADER, &h);
716	if (rc < 0)
717		return (rc);
718
719	n = h.ending_track - h.starting_track + 1;
720	rc = status (&trk, &junk, &junk, &junk);
721	if (rc < 0)
722		return (-1);
723
724	if (arg && *arg) {
725		if (sscanf (arg, "%u", &off) != 1) {
726		    warnx("invalid command argument");
727		    return (0);
728		} else
729		    trk += off * dir;
730	} else
731		trk += dir;
732
733	if (trk > h.ending_track)
734		trk = 1;
735
736	return (play_track (trk, 1, n, 1));
737}
738
739char *strstatus (int sts)
740{
741	switch (sts) {
742	case ASTS_INVALID:   return ("invalid");
743	case ASTS_PLAYING:   return ("playing");
744	case ASTS_PAUSED:    return ("paused");
745	case ASTS_COMPLETED: return ("completed");
746	case ASTS_ERROR:     return ("error");
747	case ASTS_VOID:      return ("void");
748	default:             return ("??");
749	}
750}
751
752int pstatus (char *arg)
753{
754	struct ioc_vol v;
755	struct ioc_read_subchannel ss;
756	struct cd_sub_channel_info data;
757	int rc, trk, m, s, f;
758	int what = 0;
759	char *p, vmcn[(4 * 15) + 1];
760
761	while ((p = strtok(arg, " \t"))) {
762	    arg = 0;
763	    if (!strncasecmp(p, "audio", strlen(p)))
764		what |= STATUS_AUDIO;
765	    else if (!strncasecmp(p, "media", strlen(p)))
766		what |= STATUS_MEDIA;
767	    else if (!strncasecmp(p, "volume", strlen(p)))
768		what |= STATUS_VOLUME;
769	    else {
770		warnx("invalid command arguments");
771		return 0;
772	    }
773	}
774	if (!what)
775	    what = STATUS_AUDIO|STATUS_MEDIA|STATUS_VOLUME;
776	if (what & STATUS_AUDIO) {
777	    rc = status (&trk, &m, &s, &f);
778	    if (rc >= 0)
779		if (verbose)
780		    printf ("Audio status = %d<%s>, current track = %d, current position = %d:%02d.%02d\n",
781			    rc, strstatus (rc), trk, m, s, f);
782		else
783		    printf ("%d %d %d:%02d.%02d\n", rc, trk, m, s, f);
784	    else
785		printf ("No current status info available\n");
786	}
787	if (what & STATUS_MEDIA) {
788	    bzero (&ss, sizeof (ss));
789	    ss.data = &data;
790	    ss.data_len = sizeof (data);
791	    ss.address_format = msf ? CD_MSF_FORMAT : CD_LBA_FORMAT;
792	    ss.data_format = CD_MEDIA_CATALOG;
793	    rc = ioctl (fd, CDIOCREADSUBCHANNEL, (char *) &ss);
794	    if (rc >= 0) {
795		printf("Media catalog is %sactive",
796		       ss.data->what.media_catalog.mc_valid ? "": "in");
797		if (ss.data->what.media_catalog.mc_valid &&
798		    ss.data->what.media_catalog.mc_number[0])
799		{
800		    strvisx (vmcn, ss.data->what.media_catalog.mc_number,
801			    (sizeof (vmcn) - 1) / 4, VIS_OCTAL | VIS_NL);
802		    printf(", number \"%.*s\"", (int)sizeof (vmcn), vmcn);
803		}
804		putchar('\n');
805	    } else
806		printf("No media catalog info available\n");
807	}
808	if (what & STATUS_VOLUME) {
809	    rc = ioctl (fd, CDIOCGETVOL, &v);
810	    if (rc >= 0)
811		if (verbose)
812		    printf ("Left volume = %d, right volume = %d\n",
813			    v.vol[0], v.vol[1]);
814		else
815		    printf ("%d %d\n", v.vol[0], v.vol[1]);
816	    else
817		printf ("No volume level info available\n");
818	}
819	return(0);
820}
821
822/*
823 * dbprog_sum
824 *	Convert an integer to its text string representation, and
825 *	compute its checksum.  Used by dbprog_discid to derive the
826 *	disc ID.
827 *
828 * Args:
829 *	n - The integer value.
830 *
831 * Return:
832 *	The integer checksum.
833 */
834static int
835dbprog_sum(int n)
836{
837	char	buf[12],
838		*p;
839	int	ret = 0;
840
841	/* For backward compatibility this algorithm must not change */
842	sprintf(buf, "%u", n);
843	for (p = buf; *p != '\0'; p++)
844		ret += (*p - '0');
845
846	return(ret);
847}
848
849
850/*
851 * dbprog_discid
852 *	Compute a magic disc ID based on the number of tracks,
853 *	the length of each track, and a checksum of the string
854 *	that represents the offset of each track.
855 *
856 * Args:
857 *	s - Pointer to the curstat_t structure.
858 *
859 * Return:
860 *	The integer disc ID.
861 */
862static u_int
863dbprog_discid()
864{
865	struct	ioc_toc_header h;
866	int	rc;
867	int	i, ntr,
868		t = 0,
869		n = 0;
870
871	rc = ioctl (fd, CDIOREADTOCHEADER, &h);
872	if (rc < 0)
873		return 0;
874	ntr = h.ending_track - h.starting_track + 1;
875	i = msf;
876	msf = 1;
877	rc = read_toc_entrys ((ntr + 1) * sizeof (struct cd_toc_entry));
878	msf = i;
879	if (rc < 0)
880		return 0;
881	/* For backward compatibility this algorithm must not change */
882	for (i = 0; i < ntr; i++) {
883#define TC_MM(a) toc_buffer[a].addr.msf.minute
884#define TC_SS(a) toc_buffer[a].addr.msf.second
885		n += dbprog_sum((TC_MM(i) * 60) + TC_SS(i));
886
887		t += ((TC_MM(i+1) * 60) + TC_SS(i+1)) -
888		     ((TC_MM(i) * 60) + TC_SS(i));
889	}
890
891	return((n % 0xff) << 24 | t << 8 | ntr);
892}
893
894int cdid ()
895{
896	u_int	id;
897
898	id = dbprog_discid();
899	if (id)
900	{
901		if (verbose)
902			printf ("CDID=");
903		printf ("%08x\n",id);
904	}
905	return id ? 0 : 1;
906}
907
908int info (char *arg)
909{
910	struct ioc_toc_header h;
911	int rc, i, n;
912
913	rc = ioctl (fd, CDIOREADTOCHEADER, &h);
914	if (rc >= 0) {
915		if (verbose)
916			printf ("Starting track = %d, ending track = %d, TOC size = %d bytes\n",
917				h.starting_track, h.ending_track, h.len);
918		else
919			printf ("%d %d %d\n", h.starting_track,
920				h.ending_track, h.len);
921	} else {
922		warn("getting toc header");
923		return (rc);
924	}
925
926	n = h.ending_track - h.starting_track + 1;
927	rc = read_toc_entrys ((n + 1) * sizeof (struct cd_toc_entry));
928	if (rc < 0)
929		return (rc);
930
931	if (verbose) {
932		printf ("track     start  duration   block  length   type\n");
933		printf ("-------------------------------------------------\n");
934	}
935
936	for (i = 0; i < n; i++) {
937		printf ("%5d  ", toc_buffer[i].track);
938		prtrack (toc_buffer + i, 0);
939	}
940	printf ("%5d  ", toc_buffer[n].track);
941	prtrack (toc_buffer + n, 1);
942	return (0);
943}
944
945void lba2msf (unsigned long lba, u_char *m, u_char *s, u_char *f)
946{
947	lba += 150;                     /* block start offset */
948	lba &= 0xffffff;                /* negative lbas use only 24 bits */
949	*m = lba / (60 * 75);
950	lba %= (60 * 75);
951	*s = lba / 75;
952	*f = lba % 75;
953}
954
955unsigned int msf2lba (u_char m, u_char s, u_char f)
956{
957	return (((m * 60) + s) * 75 + f) - 150;
958}
959
960void prtrack (struct cd_toc_entry *e, int lastflag)
961{
962	int block, next, len;
963	u_char m, s, f;
964
965	if (msf) {
966		/* Print track start */
967		printf ("%2d:%02d.%02d  ", e->addr.msf.minute,
968			e->addr.msf.second, e->addr.msf.frame);
969
970		block = msf2lba (e->addr.msf.minute, e->addr.msf.second,
971			e->addr.msf.frame);
972	} else {
973		block = ntohl(e->addr.lba);
974		lba2msf(block, &m, &s, &f);
975		/* Print track start */
976		printf ("%2d:%02d.%02d  ", m, s, f);
977	}
978	if (lastflag) {
979		/* Last track -- print block */
980		printf ("       -  %6d       -      -\n", block);
981		return;
982	}
983
984	if (msf)
985		next = msf2lba (e[1].addr.msf.minute, e[1].addr.msf.second,
986			e[1].addr.msf.frame);
987	else
988		next = ntohl(e[1].addr.lba);
989	len = next - block;
990	lba2msf (len, &m, &s, &f);
991
992	/* Print duration, block, length, type */
993	printf ("%2d:%02d.%02d  %6d  %6d  %5s\n", m, s, f, block, len,
994		(e->control & 4) ? "data" : "audio");
995}
996
997int play_track (int tstart, int istart, int tend, int iend)
998{
999	struct ioc_play_track t;
1000
1001	t.start_track = tstart;
1002	t.start_index = istart;
1003	t.end_track = tend;
1004	t.end_index = iend;
1005
1006	return ioctl (fd, CDIOCPLAYTRACKS, &t);
1007}
1008
1009int play_blocks (int blk, int len)
1010{
1011	struct ioc_play_blocks  t;
1012
1013	t.blk = blk;
1014	t.len = len;
1015
1016	return ioctl (fd, CDIOCPLAYBLOCKS, &t);
1017}
1018
1019int setvol (int left, int right)
1020{
1021	struct ioc_vol  v;
1022
1023	v.vol[0] = left;
1024	v.vol[1] = right;
1025	v.vol[2] = 0;
1026	v.vol[3] = 0;
1027
1028	return ioctl (fd, CDIOCSETVOL, &v);
1029}
1030
1031int read_toc_entrys (int len)
1032{
1033	struct ioc_read_toc_entry t;
1034
1035	t.address_format = msf ? CD_MSF_FORMAT : CD_LBA_FORMAT;
1036	t.starting_track = 0;
1037	t.data_len = len;
1038	t.data = toc_buffer;
1039
1040	return (ioctl (fd, CDIOREADTOCENTRYS, (char *) &t));
1041}
1042
1043int play_msf (int start_m, int start_s, int start_f,
1044	int end_m, int end_s, int end_f)
1045{
1046	struct ioc_play_msf     a;
1047
1048	a.start_m = start_m;
1049	a.start_s = start_s;
1050	a.start_f = start_f;
1051	a.end_m = end_m;
1052	a.end_s = end_s;
1053	a.end_f = end_f;
1054
1055	return ioctl (fd, CDIOCPLAYMSF, (char *) &a);
1056}
1057
1058int status (int *trk, int *min, int *sec, int *frame)
1059{
1060	struct ioc_read_subchannel s;
1061	struct cd_sub_channel_info data;
1062	u_char mm, ss, ff;
1063
1064	bzero (&s, sizeof (s));
1065	s.data = &data;
1066	s.data_len = sizeof (data);
1067	s.address_format = msf ? CD_MSF_FORMAT : CD_LBA_FORMAT;
1068	s.data_format = CD_CURRENT_POSITION;
1069
1070	if (ioctl (fd, CDIOCREADSUBCHANNEL, (char *) &s) < 0)
1071		return -1;
1072
1073	*trk = s.data->what.position.track_number;
1074	if (msf) {
1075		*min = s.data->what.position.reladdr.msf.minute;
1076		*sec = s.data->what.position.reladdr.msf.second;
1077		*frame = s.data->what.position.reladdr.msf.frame;
1078	} else {
1079		lba2msf(ntohl(s.data->what.position.reladdr.lba),
1080			&mm, &ss, &ff);
1081		*min = mm;
1082		*sec = ss;
1083		*frame = ff;
1084	}
1085
1086	return s.data->header.audio_status;
1087}
1088
1089const char *
1090cdcontrol_prompt()
1091{
1092	return ("cdcontrol> ");
1093}
1094
1095char *
1096input (int *cmd)
1097{
1098#define MAXLINE 80
1099	static EditLine *el = NULL;
1100	static History *hist = NULL;
1101	HistEvent he;
1102	static char buf[MAXLINE];
1103	int num = 0;
1104	int len;
1105	const char *bp = NULL;
1106	char *p;
1107
1108	do {
1109		if (verbose) {
1110			if (!el) {
1111				el = el_init("cdcontrol", stdin, stdout,
1112				    stderr);
1113				hist = history_init();
1114				history(hist, &he, H_EVENT, 100);
1115				el_set(el, EL_HIST, history, hist);
1116				el_set(el, EL_EDITOR, "emacs");
1117				el_set(el, EL_PROMPT, cdcontrol_prompt);
1118				el_set(el, EL_SIGNAL, 1);
1119				el_source(el, NULL);
1120			}
1121			if ((bp = el_gets(el, &num)) == NULL || num == 0) {
1122				*cmd = CMD_QUIT;
1123				fprintf (stderr, "\r\n");
1124				return (0);
1125			}
1126
1127			len = (num > MAXLINE) ? MAXLINE : num;
1128			memcpy(buf, bp, len);
1129			buf[len] = 0;
1130			history(hist, &he, H_ENTER, bp);
1131#undef MAXLINE
1132
1133		} else {
1134			if (! fgets (buf, sizeof (buf), stdin)) {
1135				*cmd = CMD_QUIT;
1136				fprintf (stderr, "\r\n");
1137				return (0);
1138			}
1139		}
1140		p = parse (buf, cmd);
1141	} while (! p);
1142	return (p);
1143}
1144
1145char *parse (char *buf, int *cmd)
1146{
1147	struct cmdtab *c;
1148	char *p;
1149	int len;
1150
1151	for (p=buf; isspace (*p); p++)
1152		continue;
1153
1154	if (isdigit (*p) || (p[0] == '#' && isdigit (p[1]))) {
1155		*cmd = CMD_PLAY;
1156		return (p);
1157	} else if (*p == '+') {
1158		*cmd = CMD_NEXT;
1159		return (p + 1);
1160	} else if (*p == '-') {
1161		*cmd = CMD_PREVIOUS;
1162		return (p + 1);
1163	}
1164
1165	for (buf = p; *p && ! isspace (*p); p++)
1166		continue;
1167
1168	len = p - buf;
1169	if (! len)
1170		return (0);
1171
1172	if (*p) {                       /* It must be a spacing character! */
1173		char *q;
1174
1175		*p++ = 0;
1176		for (q=p; *q && *q != '\n' && *q != '\r'; q++)
1177			continue;
1178		*q = 0;
1179	}
1180
1181	*cmd = -1;
1182	for (c=cmdtab; c->name; ++c) {
1183		/* Is it an exact match? */
1184		if (! strcasecmp (buf, c->name)) {
1185  			*cmd = c->command;
1186  			break;
1187  		}
1188
1189		/* Try short hand forms then... */
1190		if (len >= c->min && ! strncasecmp (buf, c->name, len)) {
1191			if (*cmd != -1 && *cmd != c->command) {
1192				warnx("ambiguous command");
1193				return (0);
1194			}
1195			*cmd = c->command;
1196  		}
1197	}
1198
1199	if (*cmd == -1) {
1200		warnx("invalid command, enter ``help'' for commands");
1201		return (0);
1202	}
1203
1204	while (isspace (*p))
1205		p++;
1206	return p;
1207}
1208
1209int open_cd ()
1210{
1211	char devbuf[MAXPATHLEN];
1212
1213	if (fd > -1)
1214		return (1);
1215
1216	if (*cdname == '/') {
1217		snprintf (devbuf, MAXPATHLEN, "%s", cdname);
1218	} else {
1219		snprintf (devbuf, MAXPATHLEN, "%s%s", _PATH_DEV, cdname);
1220	}
1221
1222	fd = open (devbuf, O_RDONLY);
1223
1224	if (fd < 0 && errno == ENOENT) {
1225		strcat (devbuf, DEFAULT_CD_PARTITION);
1226		fd = open (devbuf, O_RDONLY);
1227	}
1228
1229	if (fd < 0) {
1230		if (errno == ENXIO) {
1231			/*  ENXIO has an overloaded meaning here.
1232			 *  The original "Device not configured" should
1233			 *  be interpreted as "No disc in drive %s". */
1234			warnx("no disc in drive %s", devbuf);
1235			return (0);
1236		}
1237		err(1, "%s", devbuf);
1238	}
1239	return (1);
1240}
1241