cdcontrol.c revision 61105 
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 61105 2000-05-31 01:03:26Z msmith $";
24#endif /* not lint */
25
26#include <ctype.h>
27#include <err.h>
28#include <errno.h>
29#include <stdio.h>
30#include <stdlib.h>
31#include <string.h>
32#include <unistd.h>
33#include <sys/file.h>
34#include <sys/cdio.h>
35#include <sys/ioctl.h>
36#include <sys/param.h>
37#include <histedit.h>
38
39#define VERSION "2.0"
40
41#define ASTS_INVALID    0x00  /* Audio status byte not valid */
42#define ASTS_PLAYING    0x11  /* Audio play operation in progress */
43#define ASTS_PAUSED     0x12  /* Audio play operation paused */
44#define ASTS_COMPLETED  0x13  /* Audio play operation successfully completed */
45#define ASTS_ERROR      0x14  /* Audio play operation stopped due to error */
46#define ASTS_VOID       0x15  /* No current audio status to return */
47
48#ifndef DEFAULT_CD_DRIVE
49#  define DEFAULT_CD_DRIVE  "/dev/cd0c"
50#endif
51
52#ifndef DEFAULT_CD_PARTITION
53#  define DEFAULT_CD_PARTITION  "c"
54#endif
55
56#define CMD_DEBUG       1
57#define CMD_EJECT       2
58#define CMD_HELP        3
59#define CMD_INFO        4
60#define CMD_PAUSE       5
61#define CMD_PLAY        6
62#define CMD_QUIT        7
63#define CMD_RESUME      8
64#define CMD_STOP        9
65#define CMD_VOLUME      10
66#define CMD_CLOSE       11
67#define CMD_RESET       12
68#define CMD_SET         13
69#define CMD_STATUS      14
70#define STATUS_AUDIO    0x1
71#define STATUS_MEDIA    0x2
72#define STATUS_VOLUME   0x4
73
74struct cmdtab {
75	int command;
76	char *name;
77	unsigned  min;
78	char *args;
79} cmdtab[] = {
80{ CMD_CLOSE,    "close",        1, "" },
81{ CMD_DEBUG,    "debug",        1, "on | off" },
82{ CMD_EJECT,    "eject",        1, "" },
83{ CMD_HELP,     "?",            1, 0 },
84{ CMD_HELP,     "help",         1, "" },
85{ CMD_INFO,     "info",         1, "" },
86{ CMD_PAUSE,    "pause",        2, "" },
87{ CMD_PLAY,     "play",         1, "min1:sec1[.fram1] [min2:sec2[.fram2]]" },
88{ CMD_PLAY,     "play",         1, "track1[.index1] [track2[.index2]]" },
89{ CMD_PLAY,     "play",         1, "tr1 m1:s1[.f1] [[tr2] [m2:s2[.f2]]]" },
90{ CMD_PLAY,     "play",         1, "[#block [len]]" },
91{ CMD_QUIT,     "quit",         1, "" },
92{ CMD_RESET,    "reset",        4, "" },
93{ CMD_RESUME,   "resume",       1, "" },
94{ CMD_SET,      "set",          2, "msf | lba" },
95{ CMD_STATUS,   "status",       1, "[audio | media | volume]" },
96{ CMD_STOP,     "stop",         3, "" },
97{ CMD_VOLUME,   "volume",       1, "<l> <r> | left | right | mute | mono | stereo" },
98{ 0, }
99};
100
101struct cd_toc_entry     toc_buffer[100];
102
103const char      *cdname;
104int             fd = -1;
105int             verbose = 1;
106int             msf = 1;
107
108int             setvol __P((int, int));
109int             read_toc_entrys __P((int));
110int             play_msf __P((int, int, int, int, int, int));
111int             play_track __P((int, int, int, int));
112int             get_vol __P((int *, int *));
113int             status __P((int *, int *, int *, int *));
114int             open_cd __P((void));
115int             play __P((char *arg));
116int             info __P((char *arg));
117int             pstatus __P((char *arg));
118char            *input __P((int *));
119void            prtrack __P((struct cd_toc_entry *e, int lastflag));
120void            lba2msf __P((unsigned long lba,
121                            u_char *m, u_char *s, u_char *f));
122unsigned int    msf2lba __P((u_char m, u_char s, u_char f));
123int             play_blocks __P((int blk, int len));
124int             run __P((int cmd, char *arg));
125char            *parse __P((char *buf, int *cmd));
126
127void help ()
128{
129	struct cmdtab *c;
130	char *s, n;
131	int i;
132
133	for (c=cmdtab; c->name; ++c) {
134		if (! c->args)
135			continue;
136		printf("\t");
137		for (i = c->min, s = c->name; *s; s++, i--) {
138			if (i > 0)
139				n = toupper(*s);
140			else
141				n = *s;
142			putchar(n);
143		}
144		if (*c->args)
145			printf (" %s", c->args);
146		printf ("\n");
147	}
148	printf ("\n\tThe word \"play\" is not required for the play commands.\n");
149	printf ("\tThe plain target address is taken as a synonym for play.\n");
150}
151
152void usage ()
153{
154	fprintf (stderr, "usage: cdcontrol [-sv] [-f device] [command ...]\n");
155	exit (1);
156}
157
158int main (int argc, char **argv)
159{
160	int cmd;
161	char *arg;
162
163	cdname = getenv ("MUSIC_CD");
164	if (! cdname)
165		cdname = getenv ("CD_DRIVE");
166	if (! cdname)
167		cdname = getenv ("DISC");
168	if (! cdname)
169		cdname = getenv ("CDPLAY");
170
171	for (;;) {
172		switch (getopt (argc, argv, "svhf:")) {
173		case EOF:
174			break;
175		case 's':
176			verbose = 0;
177			continue;
178		case 'v':
179			verbose = 2;
180			continue;
181		case 'f':
182			cdname = optarg;
183			continue;
184		case 'h':
185		default:
186			usage ();
187		}
188		break;
189	}
190	argc -= optind;
191	argv += optind;
192
193	if (argc > 0 && ! strcasecmp (*argv, "help"))
194		usage ();
195
196	if (! cdname) {
197		cdname = DEFAULT_CD_DRIVE;
198		warnx("no CD device name specified, defaulting to %s", cdname);
199	}
200
201	if (argc > 0) {
202		char buf[80], *p;
203		int len;
204
205		for (p=buf; argc-->0; ++argv) {
206			len = strlen (*argv);
207
208			if (p + len >= buf + sizeof (buf) - 1)
209				usage ();
210
211			if (p > buf)
212				*p++ = ' ';
213
214			strcpy (p, *argv);
215			p += len;
216		}
217		*p = 0;
218		arg = parse (buf, &cmd);
219		return (run (cmd, arg));
220	}
221
222	if (verbose == 1)
223		verbose = isatty (0);
224
225	if (verbose) {
226		printf ("Compact Disc Control utility, version %s\n", VERSION);
227		printf ("Type `?' for command list\n\n");
228	}
229
230	for (;;) {
231		arg = input (&cmd);
232		if (run (cmd, arg) < 0) {
233			if (verbose)
234				warn(NULL);
235			close (fd);
236			fd = -1;
237		}
238		fflush (stdout);
239	}
240}
241
242int run (int cmd, char *arg)
243{
244	int l, r, rc;
245
246	if (arg == NULL)
247		return 0;
248	switch (cmd) {
249
250	case CMD_QUIT:
251		exit (0);
252
253	case CMD_INFO:
254		if (fd < 0 && ! open_cd ())
255			return (0);
256
257		return info (arg);
258
259	case CMD_STATUS:
260		if (fd < 0 && ! open_cd ())
261			return (0);
262
263		return pstatus (arg);
264
265	case CMD_PAUSE:
266		if (fd < 0 && ! open_cd ())
267			return (0);
268
269		return ioctl (fd, CDIOCPAUSE);
270
271	case CMD_RESUME:
272		if (fd < 0 && ! open_cd ())
273			return (0);
274
275		return ioctl (fd, CDIOCRESUME);
276
277	case CMD_STOP:
278		if (fd < 0 && ! open_cd ())
279			return (0);
280
281		rc = ioctl (fd, CDIOCSTOP);
282
283		(void) ioctl (fd, CDIOCALLOW);
284
285		return (rc);
286
287	case CMD_RESET:
288		if (fd < 0 && ! open_cd ())
289			return (0);
290
291		rc = ioctl (fd, CDIOCRESET);
292		if (rc < 0)
293			return rc;
294		close(fd);
295		fd = -1;
296		return (0);
297
298	case CMD_DEBUG:
299		if (fd < 0 && ! open_cd ())
300			return (0);
301
302		if (! strcasecmp (arg, "on"))
303			return ioctl (fd, CDIOCSETDEBUG);
304
305		if (! strcasecmp (arg, "off"))
306			return ioctl (fd, CDIOCCLRDEBUG);
307
308		warnx("invalid command arguments");
309
310		return (0);
311
312	case CMD_EJECT:
313		if (fd < 0 && ! open_cd ())
314			return (0);
315
316		(void) ioctl (fd, CDIOCALLOW);
317		rc = ioctl (fd, CDIOCEJECT);
318		if (rc < 0)
319			return (rc);
320		return (0);
321
322	case CMD_CLOSE:
323		if (fd < 0 && ! open_cd ())
324			return (0);
325
326		(void) ioctl (fd, CDIOCALLOW);
327		rc = ioctl (fd, CDIOCCLOSE);
328		if (rc < 0)
329			return (rc);
330		close(fd);
331		fd = -1;
332		return (0);
333
334	case CMD_PLAY:
335		if (fd < 0 && ! open_cd ())
336			return (0);
337
338		while (isspace (*arg))
339			arg++;
340
341		return play (arg);
342
343	case CMD_SET:
344		if (! strcasecmp (arg, "msf"))
345			msf = 1;
346		else if (! strcasecmp (arg, "lba"))
347			msf = 0;
348		else
349			warnx("invalid command arguments");
350		return (0);
351
352	case CMD_VOLUME:
353		if (fd < 0 && !open_cd ())
354			return (0);
355
356		if (! strncasecmp (arg, "left", strlen(arg)))
357			return ioctl (fd, CDIOCSETLEFT);
358
359		if (! strncasecmp (arg, "right", strlen(arg)))
360			return ioctl (fd, CDIOCSETRIGHT);
361
362		if (! strncasecmp (arg, "mono", strlen(arg)))
363			return ioctl (fd, CDIOCSETMONO);
364
365		if (! strncasecmp (arg, "stereo", strlen(arg)))
366			return ioctl (fd, CDIOCSETSTERIO);
367
368		if (! strncasecmp (arg, "mute", strlen(arg)))
369			return ioctl (fd, CDIOCSETMUTE);
370
371		if (2 != sscanf (arg, "%d %d", &l, &r)) {
372			warnx("invalid command arguments");
373			return (0);
374		}
375
376		return setvol (l, r);
377
378	default:
379	case CMD_HELP:
380		help ();
381		return (0);
382
383	}
384}
385
386int play (char *arg)
387{
388	struct ioc_toc_header h;
389	int rc, n, start, end = 0, istart = 1, iend = 1;
390
391	rc = ioctl (fd, CDIOREADTOCHEADER, &h);
392
393	if (rc < 0)
394		return (rc);
395
396	n = h.ending_track - h.starting_track + 1;
397	rc = read_toc_entrys ((n + 1) * sizeof (struct cd_toc_entry));
398
399	if (rc < 0)
400		return (rc);
401
402	if (! arg || ! *arg) {
403		/* Play the whole disc */
404		if (msf)
405			return play_blocks (0, msf2lba (toc_buffer[n].addr.msf.minute,
406							toc_buffer[n].addr.msf.second,
407							toc_buffer[n].addr.msf.frame));
408		else
409			return play_blocks (0, ntohl(toc_buffer[n].addr.lba));
410	}
411
412	if (strchr (arg, '#')) {
413		/* Play block #blk [ len ] */
414		int blk, len = 0;
415
416		if (2 != sscanf (arg, "#%d%d", &blk, &len) &&
417		    1 != sscanf (arg, "#%d", &blk))
418			goto Clean_up;
419
420		if (len == 0) {
421			if (msf)
422				len = msf2lba (toc_buffer[n].addr.msf.minute,
423					       toc_buffer[n].addr.msf.second,
424					       toc_buffer[n].addr.msf.frame) - blk;
425			else
426				len = ntohl(toc_buffer[n].addr.lba) - blk;
427		}
428		return play_blocks (blk, len);
429	}
430
431	if (strchr (arg, ':')) {
432		/*
433		 * Play MSF m1:s1 [ .f1 ] [ m2:s2 [ .f2 ] ]
434		 *
435		 * Will now also undestand timed addresses relative
436		 * to the beginning of a track in the form...
437		 *
438		 *      tr1 m1:s1[.f1] [[tr2] [m2:s2[.f2]]]
439		 */
440		unsigned tr1, tr2;
441		unsigned m1, m2, s1, s2, f1, f2;
442		unsigned char tm, ts, tf;
443
444		tr2 = m2 = s2 = f2 = f1 = 0;
445		if (8 == sscanf (arg, "%d %d:%d.%d %d %d:%d.%d",
446		    &tr1, &m1, &s1, &f1, &tr2, &m2, &s2, &f2))
447			goto Play_Relative_Addresses;
448
449		tr2 = m2 = s2 = f2 = f1 = 0;
450		if (7 == sscanf (arg, "%d %d:%d %d %d:%d.%d",
451		    &tr1, &m1, &s1, &tr2, &m2, &s2, &f2))
452			goto Play_Relative_Addresses;
453
454		tr2 = m2 = s2 = f2 = f1 = 0;
455		if (7 == sscanf (arg, "%d %d:%d.%d %d %d:%d",
456		    &tr1, &m1, &s1, &f1, &tr2, &m2, &s2))
457			goto Play_Relative_Addresses;
458
459		tr2 = m2 = s2 = f2 = f1 = 0;
460		if (7 == sscanf (arg, "%d %d:%d.%d %d:%d.%d",
461		    &tr1, &m1, &s1, &f1, &m2, &s2, &f2))
462			goto Play_Relative_Addresses;
463
464		tr2 = m2 = s2 = f2 = f1 = 0;
465		if (6 == sscanf (arg, "%d %d:%d.%d %d:%d",
466		    &tr1, &m1, &s1, &f1, &m2, &s2))
467			goto Play_Relative_Addresses;
468
469		tr2 = m2 = s2 = f2 = f1 = 0;
470		if (6 == sscanf (arg, "%d %d:%d %d:%d.%d",
471		    &tr1, &m1, &s1, &m2, &s2, &f2))
472			goto Play_Relative_Addresses;
473
474		tr2 = m2 = s2 = f2 = f1 = 0;
475		if (6 == sscanf (arg, "%d %d:%d.%d %d %d",
476		    &tr1, &m1, &s1, &f1, &tr2, &m2))
477			goto Play_Relative_Addresses;
478
479		tr2 = m2 = s2 = f2 = f1 = 0;
480		if (5 == sscanf (arg, "%d %d:%d %d:%d", &tr1, &m1, &s1, &m2, &s2))
481			goto Play_Relative_Addresses;
482
483		tr2 = m2 = s2 = f2 = f1 = 0;
484		if (5 == sscanf (arg, "%d %d:%d %d %d",
485		    &tr1, &m1, &s1, &tr2, &m2))
486			goto Play_Relative_Addresses;
487
488		tr2 = m2 = s2 = f2 = f1 = 0;
489		if (5 == sscanf (arg, "%d %d:%d.%d %d",
490		    &tr1, &m1, &s1, &f1, &tr2))
491			goto Play_Relative_Addresses;
492
493		tr2 = m2 = s2 = f2 = f1 = 0;
494		if (4 == sscanf (arg, "%d %d:%d %d", &tr1, &m1, &s1, &tr2))
495			goto Play_Relative_Addresses;
496
497		tr2 = m2 = s2 = f2 = f1 = 0;
498		if (4 == sscanf (arg, "%d %d:%d.%d", &tr1, &m1, &s1, &f1))
499			goto Play_Relative_Addresses;
500
501		tr2 = m2 = s2 = f2 = f1 = 0;
502		if (3 == sscanf (arg, "%d %d:%d", &tr1, &m1, &s1))
503			goto Play_Relative_Addresses;
504
505		tr2 = m2 = s2 = f2 = f1 = 0;
506		goto Try_Absolute_Timed_Addresses;
507
508Play_Relative_Addresses:
509		if (! tr1)
510			tr1 = 1;
511		else if (tr1 > n)
512			tr1 = n;
513
514		if (msf) {
515			tm = toc_buffer[tr1].addr.msf.minute;
516			ts = toc_buffer[tr1].addr.msf.second;
517			tf = toc_buffer[tr1].addr.msf.frame;
518		} else
519			lba2msf(ntohl(toc_buffer[tr1].addr.lba),
520				&tm, &ts, &tf);
521		if ((m1 > tm)
522		    || ((m1 == tm)
523		    && ((s1 > ts)
524		    || ((s1 == ts)
525		    && (f1 > tf))))) {
526			printf ("Track %d is not that long.\n", tr1);
527			return (0);
528		}
529
530		tr1--;
531
532		f1 += tf;
533		if (f1 >= 75) {
534			s1 += f1 / 75;
535			f1 %= 75;
536		}
537
538		s1 += ts;
539		if (s1 >= 60) {
540			m1 += s1 / 60;
541			s1 %= 60;
542		}
543
544		m1 += tm;
545
546		if (! tr2) {
547			if (m2 || s2 || f2) {
548				tr2 = tr1;
549				f2 += f1;
550				if (f2 >= 75) {
551					s2 += f2 / 75;
552					f2 %= 75;
553				}
554
555				s2 += s1;
556				if (s2 > 60) {
557					m2 += s2 / 60;
558					s2 %= 60;
559				}
560
561				m2 += m1;
562			} else {
563				tr2 = n;
564				if (msf) {
565					m2 = toc_buffer[n].addr.msf.minute;
566					s2 = toc_buffer[n].addr.msf.second;
567					f2 = toc_buffer[n].addr.msf.frame;
568				} else {
569					lba2msf(ntohl(toc_buffer[n].addr.lba),
570						&tm, &ts, &tf);
571					m2 = tm;
572					s2 = ts;
573					f2 = tf;
574				}
575			}
576		} else if (tr2 > n) {
577			tr2 = n;
578			m2 = s2 = f2 = 0;
579		} else {
580			if (m2 || s2 || f2)
581				tr2--;
582			if (msf) {
583				tm = toc_buffer[tr2].addr.msf.minute;
584				ts = toc_buffer[tr2].addr.msf.second;
585				tf = toc_buffer[tr2].addr.msf.frame;
586			} else
587				lba2msf(ntohl(toc_buffer[tr2].addr.lba),
588					&tm, &ts, &tf);
589			f2 += tf;
590			if (f2 >= 75) {
591				s2 += f2 / 75;
592				f2 %= 75;
593			}
594
595			s2 += ts;
596			if (s2 > 60) {
597				m2 += s2 / 60;
598				s2 %= 60;
599			}
600
601			m2 += tm;
602		}
603
604		if (msf) {
605			tm = toc_buffer[n].addr.msf.minute;
606			ts = toc_buffer[n].addr.msf.second;
607			tf = toc_buffer[n].addr.msf.frame;
608		} else
609			lba2msf(ntohl(toc_buffer[n].addr.lba),
610				&tm, &ts, &tf);
611		if ((tr2 < n)
612		    && ((m2 > tm)
613		    || ((m2 == tm)
614		    && ((s2 > ts)
615		    || ((s2 == ts)
616		    && (f2 > tf)))))) {
617			printf ("The playing time of the disc is not that long.\n");
618			return (0);
619		}
620		return (play_msf (m1, s1, f1, m2, s2, f2));
621
622Try_Absolute_Timed_Addresses:
623		if (6 != sscanf (arg, "%d:%d.%d%d:%d.%d",
624			&m1, &s1, &f1, &m2, &s2, &f2) &&
625		    5 != sscanf (arg, "%d:%d.%d%d:%d", &m1, &s1, &f1, &m2, &s2) &&
626		    5 != sscanf (arg, "%d:%d%d:%d.%d", &m1, &s1, &m2, &s2, &f2) &&
627		    3 != sscanf (arg, "%d:%d.%d", &m1, &s1, &f1) &&
628		    4 != sscanf (arg, "%d:%d%d:%d", &m1, &s1, &m2, &s2) &&
629		    2 != sscanf (arg, "%d:%d", &m1, &s1))
630			goto Clean_up;
631
632		if (m2 == 0) {
633			if (msf) {
634				m2 = toc_buffer[n].addr.msf.minute;
635				s2 = toc_buffer[n].addr.msf.second;
636				f2 = toc_buffer[n].addr.msf.frame;
637			} else {
638				lba2msf(ntohl(toc_buffer[n].addr.lba),
639					&tm, &ts, &tf);
640				m2 = tm;
641				s2 = ts;
642				f2 = tf;
643			}
644		}
645		return play_msf (m1, s1, f1, m2, s2, f2);
646	}
647
648	/*
649	 * Play track trk1 [ .idx1 ] [ trk2 [ .idx2 ] ]
650	 */
651	if (4 != sscanf (arg, "%d.%d%d.%d", &start, &istart, &end, &iend) &&
652	    3 != sscanf (arg, "%d.%d%d", &start, &istart, &end) &&
653	    3 != sscanf (arg, "%d%d.%d", &start, &end, &iend) &&
654	    2 != sscanf (arg, "%d.%d", &start, &istart) &&
655	    2 != sscanf (arg, "%d%d", &start, &end) &&
656	    1 != sscanf (arg, "%d", &start))
657		goto Clean_up;
658
659	if (end == 0)
660		end = n;
661	return (play_track (start, istart, end, iend));
662
663Clean_up:
664	warnx("invalid command arguments");
665	return (0);
666}
667
668char *strstatus (int sts)
669{
670	switch (sts) {
671	case ASTS_INVALID:   return ("invalid");
672	case ASTS_PLAYING:   return ("playing");
673	case ASTS_PAUSED:    return ("paused");
674	case ASTS_COMPLETED: return ("completed");
675	case ASTS_ERROR:     return ("error");
676	case ASTS_VOID:      return ("void");
677	default:             return ("??");
678	}
679}
680
681int pstatus (char *arg)
682{
683	struct ioc_vol v;
684	struct ioc_read_subchannel ss;
685	struct cd_sub_channel_info data;
686	int rc, trk, m, s, f;
687	int what = 0;
688	char *p;
689
690	while ((p = strtok(arg, " \t"))) {
691	    arg = 0;
692	    if (!strncasecmp(p, "audio", strlen(p)))
693		what |= STATUS_AUDIO;
694	    else if (!strncasecmp(p, "media", strlen(p)))
695		what |= STATUS_MEDIA;
696	    else if (!strncasecmp(p, "volume", strlen(p)))
697		what |= STATUS_VOLUME;
698	    else {
699		warnx("invalid command arguments");
700		return 0;
701	    }
702	}
703	if (!what)
704	    what = STATUS_AUDIO|STATUS_MEDIA|STATUS_VOLUME;
705	if (what & STATUS_AUDIO) {
706	    rc = status (&trk, &m, &s, &f);
707	    if (rc >= 0)
708		if (verbose)
709		    printf ("Audio status = %d<%s>, current track = %d, current position = %d:%02d.%02d\n",
710			    rc, strstatus (rc), trk, m, s, f);
711		else
712		    printf ("%d %d %d:%02d.%02d\n", rc, trk, m, s, f);
713	    else
714		printf ("No current status info available\n");
715	}
716	if (what & STATUS_MEDIA) {
717	    bzero (&ss, sizeof (ss));
718	    ss.data = &data;
719	    ss.data_len = sizeof (data);
720	    ss.address_format = msf ? CD_MSF_FORMAT : CD_LBA_FORMAT;
721	    ss.data_format = CD_MEDIA_CATALOG;
722	    rc = ioctl (fd, CDIOCREADSUBCHANNEL, (char *) &ss);
723	    if (rc >= 0) {
724		printf("Media catalog is %sactive",
725		       ss.data->what.media_catalog.mc_valid ? "": "in");
726		if (ss.data->what.media_catalog.mc_valid &&
727		    ss.data->what.media_catalog.mc_number[0])
728		    printf(", number \"%.15s\"",
729			   ss.data->what.media_catalog.mc_number);
730		putchar('\n');
731	    } else
732		printf("No media catalog info available\n");
733	}
734	if (what & STATUS_VOLUME) {
735	    rc = ioctl (fd, CDIOCGETVOL, &v);
736	    if (rc >= 0)
737		if (verbose)
738		    printf ("Left volume = %d, right volume = %d\n",
739			    v.vol[0], v.vol[1]);
740		else
741		    printf ("%d %d\n", v.vol[0], v.vol[1]);
742	    else
743		printf ("No volume level info available\n");
744	}
745	return(0);
746}
747
748int info (char *arg)
749{
750	struct ioc_toc_header h;
751	int rc, i, n;
752
753	rc = ioctl (fd, CDIOREADTOCHEADER, &h);
754	if (rc >= 0) {
755		if (verbose)
756			printf ("Starting track = %d, ending track = %d, TOC size = %d bytes\n",
757				h.starting_track, h.ending_track, h.len);
758		else
759			printf ("%d %d %d\n", h.starting_track,
760				h.ending_track, h.len);
761	} else {
762		warn("getting toc header");
763		return (rc);
764	}
765
766	n = h.ending_track - h.starting_track + 1;
767	rc = read_toc_entrys ((n + 1) * sizeof (struct cd_toc_entry));
768	if (rc < 0)
769		return (rc);
770
771	if (verbose) {
772		printf ("track     start  duration   block  length   type\n");
773		printf ("-------------------------------------------------\n");
774	}
775
776	for (i = 0; i < n; i++) {
777		printf ("%5d  ", toc_buffer[i].track);
778		prtrack (toc_buffer + i, 0);
779	}
780	printf ("%5d  ", toc_buffer[n].track);
781	prtrack (toc_buffer + n, 1);
782	return (0);
783}
784
785void lba2msf (unsigned long lba, u_char *m, u_char *s, u_char *f)
786{
787	lba += 150;                     /* block start offset */
788	lba &= 0xffffff;                /* negative lbas use only 24 bits */
789	*m = lba / (60 * 75);
790	lba %= (60 * 75);
791	*s = lba / 75;
792	*f = lba % 75;
793}
794
795unsigned int msf2lba (u_char m, u_char s, u_char f)
796{
797	return (((m * 60) + s) * 75 + f) - 150;
798}
799
800void prtrack (struct cd_toc_entry *e, int lastflag)
801{
802	int block, next, len;
803	u_char m, s, f;
804
805	if (msf) {
806		/* Print track start */
807		printf ("%2d:%02d.%02d  ", e->addr.msf.minute,
808			e->addr.msf.second, e->addr.msf.frame);
809
810		block = msf2lba (e->addr.msf.minute, e->addr.msf.second,
811			e->addr.msf.frame);
812	} else {
813		block = ntohl(e->addr.lba);
814		lba2msf(block, &m, &s, &f);
815		/* Print track start */
816		printf ("%2d:%02d.%02d  ", m, s, f);
817	}
818	if (lastflag) {
819		/* Last track -- print block */
820		printf ("       -  %6d       -      -\n", block);
821		return;
822	}
823
824	if (msf)
825		next = msf2lba (e[1].addr.msf.minute, e[1].addr.msf.second,
826			e[1].addr.msf.frame);
827	else
828		next = ntohl(e[1].addr.lba);
829	len = next - block;
830	lba2msf (len, &m, &s, &f);
831
832	/* Print duration, block, length, type */
833	printf ("%2d:%02d.%02d  %6d  %6d  %5s\n", m, s, f, block, len,
834		(e->control & 4) ? "data" : "audio");
835}
836
837int play_track (int tstart, int istart, int tend, int iend)
838{
839	struct ioc_play_track t;
840
841	t.start_track = tstart;
842	t.start_index = istart;
843	t.end_track = tend;
844	t.end_index = iend;
845
846	return ioctl (fd, CDIOCPLAYTRACKS, &t);
847}
848
849int play_blocks (int blk, int len)
850{
851	struct ioc_play_blocks  t;
852
853	t.blk = blk;
854	t.len = len;
855
856	return ioctl (fd, CDIOCPLAYBLOCKS, &t);
857}
858
859int setvol (int left, int right)
860{
861	struct ioc_vol  v;
862
863	v.vol[0] = left;
864	v.vol[1] = right;
865	v.vol[2] = 0;
866	v.vol[3] = 0;
867
868	return ioctl (fd, CDIOCSETVOL, &v);
869}
870
871int read_toc_entrys (int len)
872{
873	struct ioc_read_toc_entry t;
874
875	t.address_format = msf ? CD_MSF_FORMAT : CD_LBA_FORMAT;
876	t.starting_track = 0;
877	t.data_len = len;
878	t.data = toc_buffer;
879
880	return (ioctl (fd, CDIOREADTOCENTRYS, (char *) &t));
881}
882
883int play_msf (int start_m, int start_s, int start_f,
884	int end_m, int end_s, int end_f)
885{
886	struct ioc_play_msf     a;
887
888	a.start_m = start_m;
889	a.start_s = start_s;
890	a.start_f = start_f;
891	a.end_m = end_m;
892	a.end_s = end_s;
893	a.end_f = end_f;
894
895	return ioctl (fd, CDIOCPLAYMSF, (char *) &a);
896}
897
898int status (int *trk, int *min, int *sec, int *frame)
899{
900	struct ioc_read_subchannel s;
901	struct cd_sub_channel_info data;
902	u_char mm, ss, ff;
903
904	bzero (&s, sizeof (s));
905	s.data = &data;
906	s.data_len = sizeof (data);
907	s.address_format = msf ? CD_MSF_FORMAT : CD_LBA_FORMAT;
908	s.data_format = CD_CURRENT_POSITION;
909
910	if (ioctl (fd, CDIOCREADSUBCHANNEL, (char *) &s) < 0)
911		return -1;
912
913	*trk = s.data->what.position.track_number;
914	if (msf) {
915		*min = s.data->what.position.reladdr.msf.minute;
916		*sec = s.data->what.position.reladdr.msf.second;
917		*frame = s.data->what.position.reladdr.msf.frame;
918	} else {
919		lba2msf(ntohl(s.data->what.position.reladdr.lba),
920			&mm, &ss, &ff);
921		*min = mm;
922		*sec = ss;
923		*frame = ff;
924	}
925
926	return s.data->header.audio_status;
927}
928
929const char *
930cdcontrol_prompt()
931{
932	return ("cdcontrol> ");
933}
934
935char *
936input (int *cmd)
937{
938#define MAXLINE 80
939	static EditLine *el = NULL;
940	static History *hist = NULL;
941	static char buf[MAXLINE];
942	int num = 0;
943	int len;
944	const char *bp = NULL;
945	char *p;
946
947	do {
948		if (verbose) {
949			if (!el) {
950				el = el_init("cdcontrol", stdin, stdout);
951				hist = history_init();
952				history(hist, H_EVENT, 100);
953				el_set(el, EL_HIST, history, hist);
954				el_set(el, EL_EDITOR, "emacs");
955				el_set(el, EL_PROMPT, cdcontrol_prompt);
956				el_set(el, EL_SIGNAL, 1);
957				el_source(el, NULL);
958			}
959			if ((bp = el_gets(el, &num)) == NULL || num == 0)
960				return (0);
961
962			len = (num > MAXLINE) ? MAXLINE : num;
963			memcpy(buf, bp, len);
964			buf[len] = 0;
965			history(hist, H_ENTER, bp);
966#undef MAXLINE
967
968		} else {
969			if (! fgets (buf, sizeof (buf), stdin)) {
970				*cmd = CMD_QUIT;
971				fprintf (stderr, "\r\n");
972				return (0);
973			}
974		}
975		p = parse (buf, cmd);
976	} while (! p);
977	return (p);
978}
979
980char *parse (char *buf, int *cmd)
981{
982	struct cmdtab *c;
983	char *p;
984	int len;
985
986	for (p=buf; isspace (*p); p++)
987		continue;
988
989	if (isdigit (*p) || (p[0] == '#' && isdigit (p[1]))) {
990		*cmd = CMD_PLAY;
991		return (p);
992	}
993
994	for (buf = p; *p && ! isspace (*p); p++)
995		continue;
996
997	len = p - buf;
998	if (! len)
999		return (0);
1000
1001	if (*p) {                       /* It must be a spacing character! */
1002		char *q;
1003
1004		*p++ = 0;
1005		for (q=p; *q && *q != '\n' && *q != '\r'; q++)
1006			continue;
1007		*q = 0;
1008	}
1009
1010	*cmd = -1;
1011	for (c=cmdtab; c->name; ++c) {
1012		/* Is it an exact match? */
1013		if (! strcasecmp (buf, c->name)) {
1014  			*cmd = c->command;
1015  			break;
1016  		}
1017
1018		/* Try short hand forms then... */
1019		if (len >= c->min && ! strncasecmp (buf, c->name, len)) {
1020			if (*cmd != -1 && *cmd != c->command) {
1021				warnx("ambiguous command");
1022				return (0);
1023			}
1024			*cmd = c->command;
1025  		}
1026	}
1027
1028	if (*cmd == -1) {
1029		warnx("invalid command, enter ``help'' for commands");
1030		return (0);
1031	}
1032
1033	while (isspace (*p))
1034		p++;
1035	return p;
1036}
1037
1038int open_cd ()
1039{
1040	char devbuf[MAXPATHLEN];
1041
1042	if (fd > -1)
1043		return (1);
1044
1045	if (*cdname == '/') {
1046		snprintf (devbuf, MAXPATHLEN, "%s", cdname);
1047	} else {
1048		snprintf (devbuf, MAXPATHLEN, "/dev/%s", cdname);
1049	}
1050
1051	fd = open (devbuf, O_RDONLY);
1052
1053	if (fd < 0 && errno == ENOENT) {
1054		strcat (devbuf, DEFAULT_CD_PARTITION);
1055		fd = open (devbuf, O_RDONLY);
1056	}
1057
1058	if (fd < 0) {
1059		if (errno == ENXIO) {
1060			/*  ENXIO has an overloaded meaning here.
1061			 *  The original "Device not configured" should
1062			 *  be interpreted as "No disc in drive %s". */
1063			warnx("no disc in drive %s", devbuf);
1064			return (0);
1065		}
1066		err(1, "%s", devbuf);
1067	}
1068	return (1);
1069}
1070