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cdplay.c revision 1.8
      1 /* 	$NetBSD: cdplay.c,v 1.8 2000/06/15 21:07:37 msaitoh Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1999 Andrew Doran.
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     26  * SUCH DAMAGE.
     27  *
     28  */
     29 
     30 /*
     31  * Compact Disc Control Utility by Serge V. Vakulenko <vak (at) cronyx.ru>.
     32  * Based on the non-X based CD player by Jean-Marc Zucconi and
     33  * Andrey A. Chernov.
     34  *
     35  * Fixed and further modified on 5-Sep-1995 by Jukka Ukkonen <jau (at) funet.fi>.
     36  *
     37  * 11-Sep-1995: Jukka A. Ukkonen <jau (at) funet.fi>
     38  *              A couple of further fixes to my own earlier "fixes".
     39  *
     40  * 18-Sep-1995: Jukka A. Ukkonen <jau (at) funet.fi>
     41  *              Added an ability to specify addresses relative to the
     42  *              beginning of a track. This is in fact a variation of
     43  *              doing the simple play_msf() call.
     44  *
     45  * 11-Oct-1995: Serge V.Vakulenko <vak (at) cronyx.ru>
     46  *              New eject algorithm.
     47  *              Some code style reformatting.
     48  *
     49  * from FreeBSD: cdcontrol.c,v 1.17.2.1 1999/01/31 15:36:01 billf Exp
     50  */
     51 
     52 /*
     53  * XXX there are too many oppertunities to trash the stack from the command
     54  * line - ad
     55  */
     56 
     57 #include <sys/cdefs.h>
     58 #ifndef lint
     59 __RCSID("$NetBSD: cdplay.c,v 1.8 2000/06/15 21:07:37 msaitoh Exp $");
     60 #endif /* not lint */
     61 
     62 #include <sys/endian.h>
     63 #include <sys/ioctl.h>
     64 #include <sys/file.h>
     65 #include <sys/cdio.h>
     66 
     67 #include <ctype.h>
     68 #include <err.h>
     69 #include <errno.h>
     70 #include <histedit.h>
     71 #include <stdio.h>
     72 #include <stdlib.h>
     73 #include <string.h>
     74 #include <unistd.h>
     75 
     76 #include <machine/disklabel.h>
     77 
     78 #define ASTS_INVALID    0x00	/* Audio status byte not valid */
     79 #define ASTS_PLAYING    0x11	/* Audio play operation in progress */
     80 #define ASTS_PAUSED     0x12	/* Audio play operation paused */
     81 #define ASTS_COMPLETED  0x13	/* Audio play operation successfully completed */
     82 #define ASTS_ERROR      0x14	/* Audio play operation stopped due to error */
     83 #define ASTS_VOID       0x15	/* No current audio status to return */
     84 
     85 #define CMD_DEBUG       1
     86 #define CMD_EJECT       2
     87 #define CMD_HELP        3
     88 #define CMD_INFO        4
     89 #define CMD_PAUSE       5
     90 #define CMD_PLAY        6
     91 #define CMD_QUIT        7
     92 #define CMD_RESUME      8
     93 #define CMD_STOP        9
     94 #define CMD_VOLUME      10
     95 #define CMD_CLOSE       11
     96 #define CMD_RESET       12
     97 #define CMD_SET         13
     98 #define CMD_STATUS      14
     99 #define STATUS_AUDIO    0x1
    100 #define STATUS_MEDIA    0x2
    101 #define STATUS_VOLUME   0x4
    102 
    103 struct cmdtab {
    104 	int command;
    105 	char *name;
    106 	unsigned  min;
    107 	char *args;
    108 } cmdtab[] = {
    109 { CMD_CLOSE,    "close",        1, "" },
    110 { CMD_EJECT,    "eject",        1, "" },
    111 { CMD_HELP,     "?",            1, 0 },
    112 { CMD_HELP,     "help",         1, "" },
    113 { CMD_INFO,     "info",         1, "" },
    114 { CMD_PAUSE,    "pause",        2, "" },
    115 { CMD_PLAY,     "play",         1, "min1:sec1[.fram1] [min2:sec2[.fram2]]" },
    116 { CMD_PLAY,     "play",         1, "track1[.index1] [track2[.index2]]" },
    117 { CMD_PLAY,     "play",         1, "tr1 m1:s1[.f1] [[tr2] [m2:s2[.f2]]]" },
    118 { CMD_PLAY,     "play",         1, "[#block [len]]" },
    119 { CMD_QUIT,     "quit",         1, "" },
    120 { CMD_RESET,    "reset",        4, "" },
    121 { CMD_RESUME,   "resume",       1, "" },
    122 { CMD_SET,      "set",          2, "msf | lba" },
    123 { CMD_STATUS,   "status",       1, "[audio | media | volume]" },
    124 { CMD_STOP,     "stop",         3, "" },
    125 { CMD_VOLUME,   "volume",       1, "<l> <r> | left | right | mute | mono | stereo" },
    126 { 0, }
    127 };
    128 
    129 struct cd_toc_entry toc_buffer[100];
    130 
    131 const char *cdname;
    132 int     fd = -1;
    133 int     msf = 1;
    134 
    135 /* for histedit */
    136 extern char *__progname;	/* from crt0.o */
    137 History *hist;
    138 HistEvent he;
    139 EditLine *elptr;
    140 
    141 int	setvol __P((int, int));
    142 int	read_toc_entrys __P((int));
    143 int	play_msf __P((int, int, int, int, int, int));
    144 int	play_track __P((int, int, int, int));
    145 int	get_vol __P((int *, int *));
    146 int	status __P((int *, int *, int *, int *));
    147 int	opencd __P((void));
    148 int	play __P((char *));
    149 int	info __P((char *));
    150 int	pstatus __P((char *));
    151 char	*prompt __P((void));
    152 void	prtrack __P((struct cd_toc_entry *, int));
    153 void	lba2msf __P((u_long, u_char *, u_char *, u_char *));
    154 u_int	msf2lba __P((u_char, u_char, u_char));
    155 int	play_blocks __P((int, int));
    156 int	run __P((int, char *));
    157 char   *parse __P((char *, int *));
    158 void	help __P((void));
    159 void 	usage __P((void));
    160 char   *strstatus __P((int));
    161 int 	main __P((int, char **));
    162 
    163 void
    164 help()
    165 {
    166 	struct cmdtab *c;
    167 	char *s, n;
    168 	int i;
    169 
    170 	for (c = cmdtab; c->name; ++c) {
    171 		if (!c->args)
    172 			continue;
    173 		printf("\t");
    174 		for (i = c->min, s = c->name; *s; s++, i--) {
    175 			if (i > 0)
    176 				n = toupper(*s);
    177 			else
    178 				n = *s;
    179 			putchar(n);
    180 		}
    181 		if (*c->args)
    182 			printf(" %s", c->args);
    183 		printf("\n");
    184 	}
    185 	printf("\n\tThe word \"play\" is not required for the play commands.\n");
    186 	printf("\tThe plain target address is taken as a synonym for play.\n");
    187 }
    188 
    189 void
    190 usage()
    191 {
    192 
    193 	fprintf(stderr, "usage: cdplay [-f device] [command ...]\n");
    194 	exit(1);
    195 }
    196 
    197 int
    198 main(argc, argv)
    199 	int argc;
    200 	char **argv;
    201 {
    202 	char *arg, *p, buf[80];
    203 	static char defdev[16];
    204 	int cmd, len;
    205 	char *line;
    206 	const char *elline;
    207 	int scratch;
    208 
    209 	cdname = getenv("MUSIC_CD");
    210 	if (!cdname)
    211 		cdname = getenv("CD_DRIVE");
    212 	if (!cdname)
    213 		cdname = getenv("DISC");
    214 	if (!cdname)
    215 		cdname = getenv("CDPLAY");
    216 
    217 	for (;;) {
    218 		switch (getopt(argc, argv, "svhf:")) {
    219 		case EOF:
    220 			break;
    221 		case 'f':
    222 			cdname = optarg;
    223 			continue;
    224 		case 'h':
    225 		default:
    226 			usage();
    227 		}
    228 		break;
    229 	}
    230 	argc -= optind;
    231 	argv += optind;
    232 
    233 	if (argc > 0 && !strcasecmp(*argv, "help"))
    234 		usage();
    235 
    236 	if (!cdname) {
    237 		sprintf(defdev, "cd0%c", 'a' + RAW_PART);
    238 		cdname = defdev;
    239 	}
    240 
    241 	opencd();
    242 
    243 	if (argc > 0) {
    244 		for (p = buf; argc-- > 0; ++argv) {
    245 			len = strlen(*argv);
    246 
    247 			if (p + len >= buf + sizeof(buf) - 1)
    248 				usage();
    249 
    250 			if (p > buf)
    251 				*p++ = ' ';
    252 
    253 			strcpy(p, *argv);
    254 			p += len;
    255 		}
    256 		*p = 0;
    257 		arg = parse(buf, &cmd);
    258 		return (run(cmd, arg));
    259 	}
    260 
    261 	printf("Type `?' for command list\n\n");
    262 
    263 	hist = history_init();
    264 	history(hist, &he, H_SETSIZE, 100);	/* 100 elt history buffer */
    265 	elptr = el_init(__progname, stdin, stdout, stderr);
    266 	el_set(elptr, EL_EDITOR, "emacs");
    267 	el_set(elptr, EL_PROMPT, prompt);
    268 	el_set(elptr, EL_HIST, history, hist);
    269 	el_source(elptr, NULL);
    270 
    271 	for (;;) {
    272 		line = NULL;
    273 		do {
    274 			if (((elline = el_gets(elptr, &scratch)) != NULL)
    275 			    && (scratch != 0)){
    276 				history(hist, &he, H_ENTER, elline);
    277 				line = strdup(elline);
    278 				arg = parse(line, &cmd);
    279 			} else {
    280 				cmd = CMD_QUIT;
    281 				fprintf(stderr, "\r\n");
    282 				arg = 0;
    283 				break;
    284 			}
    285 		} while (!arg);
    286 
    287 		if (run(cmd, arg) < 0) {
    288 			/* XXX damned -Wall */
    289 			char   *null = NULL;
    290 			warn(null);
    291 			close(fd);
    292 			fd = -1;
    293 		}
    294 		fflush(stdout);
    295 		if (line != NULL)
    296 			free(line);
    297 	}
    298 	el_end(elptr);
    299 	history_end(hist);
    300 }
    301 
    302 int
    303 run(cmd, arg)
    304 	int cmd;
    305 	char *arg;
    306 {
    307 	int l, r, rc;
    308 
    309 	switch (cmd) {
    310 	case CMD_QUIT:
    311 		exit(0);
    312 
    313 	case CMD_CLOSE:
    314 		if (fd >= 0) {
    315 			ioctl(fd, CDIOCALLOW);
    316 			if ((rc = ioctl(fd, CDIOCCLOSE)) < 0)
    317 				return (rc);
    318 			close(fd);
    319 			fd = -1;
    320 			return (0);
    321 		}
    322 		break;
    323 	}
    324 
    325 	if (fd < 0 && !opencd())
    326 		return (0);
    327 
    328 	switch (cmd) {
    329 	case CMD_INFO:
    330 		return (info(arg));
    331 
    332 	case CMD_STATUS:
    333 		return (pstatus(arg));
    334 
    335 	case CMD_PAUSE:
    336 		return (ioctl(fd, CDIOCPAUSE));
    337 
    338 	case CMD_RESUME:
    339 		return (ioctl(fd, CDIOCRESUME));
    340 
    341 	case CMD_STOP:
    342 		rc = ioctl(fd, CDIOCSTOP);
    343 		ioctl(fd, CDIOCALLOW);
    344 		return (rc);
    345 
    346 	case CMD_RESET:
    347 		if ((rc = ioctl(fd, CDIOCRESET)) < 0)
    348 			return (rc);
    349 		close(fd);
    350 		fd = -1;
    351 		return (0);
    352 
    353 	case CMD_EJECT:
    354 		ioctl(fd, CDIOCALLOW);
    355 		if ((rc = ioctl(fd, CDIOCEJECT)) < 0)
    356 			return (rc);
    357 		return (0);
    358 
    359 	case CMD_CLOSE:
    360 		ioctl(fd, CDIOCALLOW);
    361 		if ((rc = ioctl(fd, CDIOCCLOSE)) < 0)
    362 			return (rc);
    363 		close(fd);
    364 		fd = -1;
    365 		return (0);
    366 
    367 	case CMD_PLAY:
    368 		while (isspace(*arg))
    369 			arg++;
    370 		return (play(arg));
    371 
    372 	case CMD_SET:
    373 		if (!strcasecmp(arg, "msf"))
    374 			msf = 1;
    375 		else if (!strcasecmp(arg, "lba"))
    376 			msf = 0;
    377 		else
    378 			warnx("invalid command arguments");
    379 		return (0);
    380 
    381 	case CMD_VOLUME:
    382 		if (!strncasecmp(arg, "left", strlen(arg)))
    383 			return (ioctl(fd, CDIOCSETLEFT));
    384 
    385 		if (!strncasecmp(arg, "right", strlen(arg)))
    386 			return (ioctl(fd, CDIOCSETRIGHT));
    387 
    388 		if (!strncasecmp(arg, "mono", strlen(arg)))
    389 			return (ioctl(fd, CDIOCSETMONO));
    390 
    391 		if (!strncasecmp(arg, "stereo", strlen(arg)))
    392 			return (ioctl(fd, CDIOCSETSTEREO));
    393 
    394 		if (!strncasecmp(arg, "mute", strlen(arg)))
    395 			return (ioctl(fd, CDIOCSETMUTE));
    396 
    397 		if (sscanf(arg, "%d %d", &l, &r) != 2) {
    398 			warnx("invalid command arguments");
    399 			return (0);
    400 		}
    401 		return (setvol(l, r));
    402 
    403 	case CMD_HELP:
    404 	default:
    405 		help();
    406 		return (0);
    407 
    408 	}
    409 }
    410 
    411 int
    412 play(arg)
    413 	char *arg;
    414 {
    415 	int rc, n, start, end, istart, iend, blk, len;
    416 	struct ioc_toc_header h;
    417 
    418 	if ((rc = ioctl(fd, CDIOREADTOCHEADER, &h)) <  0)
    419 		return (rc);
    420 
    421 	end = 0;
    422 	istart = iend = 1;
    423 	n = h.ending_track - h.starting_track + 1;
    424 	rc = read_toc_entrys((n + 1) * sizeof(struct cd_toc_entry));
    425 
    426 	if (rc < 0)
    427 		return (rc);
    428 
    429 	if (!arg || !*arg) {
    430 		/* Play the whole disc */
    431 		return (play_track(h.starting_track, 1, h.ending_track, 1));
    432 	}
    433 
    434 	if (strchr(arg, '#')) {
    435 		/* Play block #blk [ len ] */
    436 		len = 0;
    437 
    438 		if (2 != sscanf(arg, "#%d%d", &blk, &len) &&
    439 		    1 != sscanf(arg, "#%d", &blk))
    440 			goto Clean_up;
    441 
    442 		if (len == 0) {
    443 			if (msf)
    444 				len = msf2lba(toc_buffer[n].addr.msf.minute,
    445 				    toc_buffer[n].addr.msf.second,
    446 				    toc_buffer[n].addr.msf.frame) - blk;
    447 			else
    448 				len = be32toh(toc_buffer[n].addr.lba) - blk;
    449 		}
    450 		return (play_blocks(blk, len));
    451 	}
    452 
    453 	if (strchr(arg, ':')) {
    454 		/*
    455 		 * Play MSF m1:s1 [ .f1 ] [ m2:s2 [ .f2 ] ]
    456 		 *
    457 		 * Will now also undestand timed addresses relative
    458 		 * to the beginning of a track in the form...
    459 		 *
    460 		 *      tr1 m1:s1[.f1] [[tr2] [m2:s2[.f2]]]
    461 		 */
    462 		unsigned tr1, tr2;
    463 		unsigned m1, m2, s1, s2, f1, f2;
    464 		unsigned char tm, ts, tf;
    465 
    466 		tr2 = m2 = s2 = f2 = f1 = 0;
    467 		if (8 == sscanf(arg, "%d %d:%d.%d %d %d:%d.%d", &tr1, &m1,
    468 		    &s1, &f1, &tr2, &m2, &s2, &f2))
    469 			goto Play_Relative_Addresses;
    470 
    471 		tr2 = m2 = s2 = f2 = f1 = 0;
    472 		if (7 == sscanf(arg, "%d %d:%d %d %d:%d.%d", &tr1, &m1, &s1,
    473 		    &tr2, &m2, &s2, &f2))
    474 			goto Play_Relative_Addresses;
    475 
    476 		tr2 = m2 = s2 = f2 = f1 = 0;
    477 		if (7 == sscanf(arg, "%d %d:%d.%d %d %d:%d", &tr1, &m1, &s1,
    478 		    &f1, &tr2, &m2, &s2))
    479 			goto Play_Relative_Addresses;
    480 
    481 		tr2 = m2 = s2 = f2 = f1 = 0;
    482 		if (7 == sscanf(arg, "%d %d:%d.%d %d:%d.%d", &tr1, &m1, &s1,
    483 		    &f1, &m2, &s2, &f2))
    484 			goto Play_Relative_Addresses;
    485 
    486 		tr2 = m2 = s2 = f2 = f1 = 0;
    487 		if (6 == sscanf(arg, "%d %d:%d.%d %d:%d", &tr1, &m1, &s1, &f1,
    488 		    &m2, &s2))
    489 			goto Play_Relative_Addresses;
    490 
    491 		tr2 = m2 = s2 = f2 = f1 = 0;
    492 		if (6 == sscanf(arg, "%d %d:%d %d:%d.%d", &tr1, &m1, &s1, &m2,
    493 		    &s2, &f2))
    494 			goto Play_Relative_Addresses;
    495 
    496 		tr2 = m2 = s2 = f2 = f1 = 0;
    497 		if (6 == sscanf(arg, "%d %d:%d.%d %d %d", &tr1, &m1, &s1, &f1,
    498 		    &tr2, &m2))
    499 			goto Play_Relative_Addresses;
    500 
    501 		tr2 = m2 = s2 = f2 = f1 = 0;
    502 		if (5 == sscanf(arg, "%d %d:%d %d:%d", &tr1, &m1, &s1, &m2,
    503 		    &s2))
    504 			goto Play_Relative_Addresses;
    505 
    506 		tr2 = m2 = s2 = f2 = f1 = 0;
    507 		if (5 == sscanf(arg, "%d %d:%d %d %d", &tr1, &m1, &s1, &tr2,
    508 		    &m2))
    509 			goto Play_Relative_Addresses;
    510 
    511 		tr2 = m2 = s2 = f2 = f1 = 0;
    512 		if (5 == sscanf(arg, "%d %d:%d.%d %d", &tr1, &m1, &s1, &f1,
    513 		    &tr2))
    514 			goto Play_Relative_Addresses;
    515 
    516 		tr2 = m2 = s2 = f2 = f1 = 0;
    517 		if (4 == sscanf(arg, "%d %d:%d %d", &tr1, &m1, &s1, &tr2))
    518 			goto Play_Relative_Addresses;
    519 
    520 		tr2 = m2 = s2 = f2 = f1 = 0;
    521 		if (4 == sscanf(arg, "%d %d:%d.%d", &tr1, &m1, &s1, &f1))
    522 			goto Play_Relative_Addresses;
    523 
    524 		tr2 = m2 = s2 = f2 = f1 = 0;
    525 		if (3 == sscanf(arg, "%d %d:%d", &tr1, &m1, &s1))
    526 			goto Play_Relative_Addresses;
    527 
    528 		tr2 = m2 = s2 = f2 = f1 = 0;
    529 		goto Try_Absolute_Timed_Addresses;
    530 
    531 Play_Relative_Addresses:
    532 		if (!tr1)
    533 			tr1 = 1;
    534 		else if (tr1 > n)
    535 			tr1 = n;
    536 
    537 		if (msf) {
    538 			tm = toc_buffer[tr1].addr.msf.minute;
    539 			ts = toc_buffer[tr1].addr.msf.second;
    540 			tf = toc_buffer[tr1].addr.msf.frame;
    541 		} else
    542 			lba2msf(be32toh(toc_buffer[tr1].addr.lba), &tm, &ts, &tf);
    543 		if ((m1 > tm) || ((m1 == tm) && ((s1 > ts) || ((s1 == ts) &&
    544 		    (f1 > tf))))) {
    545 			printf("Track %d is not that long.\n", tr1);
    546 			return (0);
    547 		}
    548 		tr1--;
    549 
    550 		f1 += tf;
    551 		if (f1 >= 75) {
    552 			s1 += f1 / 75;
    553 			f1 %= 75;
    554 		}
    555 		s1 += ts;
    556 		if (s1 >= 60) {
    557 			m1 += s1 / 60;
    558 			s1 %= 60;
    559 		}
    560 		m1 += tm;
    561 
    562 		if (!tr2) {
    563 			if (m2 || s2 || f2) {
    564 				tr2 = tr1;
    565 				f2 += f1;
    566 				if (f2 >= 75) {
    567 					s2 += f2 / 75;
    568 					f2 %= 75;
    569 				}
    570 				s2 += s1;
    571 				if (s2 > 60) {
    572 					m2 += s2 / 60;
    573 					s2 %= 60;
    574 				}
    575 				m2 += m1;
    576 			} else {
    577 				tr2 = n;
    578 				if (msf) {
    579 					m2 = toc_buffer[n].addr.msf.minute;
    580 					s2 = toc_buffer[n].addr.msf.second;
    581 					f2 = toc_buffer[n].addr.msf.frame;
    582 				} else {
    583 					lba2msf(be32toh(toc_buffer[n].addr.lba),
    584 					    &tm, &ts, &tf);
    585 					m2 = tm;
    586 					s2 = ts;
    587 					f2 = tf;
    588 				}
    589 			}
    590 		} else {
    591 			if (tr2 > n) {
    592 				tr2 = n;
    593 				m2 = s2 = f2 = 0;
    594 			} else {
    595 				if (m2 || s2 || f2)
    596 					tr2--;
    597 				if (msf) {
    598 					tm = toc_buffer[tr2].addr.msf.minute;
    599 					ts = toc_buffer[tr2].addr.msf.second;
    600 					tf = toc_buffer[tr2].addr.msf.frame;
    601 				} else
    602 					lba2msf(be32toh(toc_buffer[tr2].addr.lba),
    603 					    &tm, &ts, &tf);
    604 				f2 += tf;
    605 				if (f2 >= 75) {
    606 					s2 += f2 / 75;
    607 					f2 %= 75;
    608 				}
    609 				s2 += ts;
    610 				if (s2 > 60) {
    611 					m2 += s2 / 60;
    612 					s2 %= 60;
    613 				}
    614 				m2 += tm;
    615 			}
    616 		}
    617 
    618 		if (msf) {
    619 			tm = toc_buffer[n].addr.msf.minute;
    620 			ts = toc_buffer[n].addr.msf.second;
    621 			tf = toc_buffer[n].addr.msf.frame;
    622 		} else
    623 			lba2msf(be32toh(toc_buffer[n].addr.lba), &tm, &ts, &tf);
    624 
    625 		if ((tr2 < n) && ((m2 > tm) || ((m2 == tm) && ((s2 > ts) ||
    626 		    ((s2 == ts) && (f2 > tf)))))) {
    627 			printf("The playing time of the disc is not that long.\n");
    628 			return (0);
    629 		}
    630 
    631 		return (play_msf(m1, s1, f1, m2, s2, f2));
    632 
    633 Try_Absolute_Timed_Addresses:
    634 		if (6 != sscanf(arg, "%d:%d.%d%d:%d.%d",
    635 			&m1, &s1, &f1, &m2, &s2, &f2) &&
    636 		    5 != sscanf(arg, "%d:%d.%d%d:%d", &m1, &s1, &f1, &m2, &s2) &&
    637 		    5 != sscanf(arg, "%d:%d%d:%d.%d", &m1, &s1, &m2, &s2, &f2) &&
    638 		    3 != sscanf(arg, "%d:%d.%d", &m1, &s1, &f1) &&
    639 		    4 != sscanf(arg, "%d:%d%d:%d", &m1, &s1, &m2, &s2) &&
    640 		    2 != sscanf(arg, "%d:%d", &m1, &s1))
    641 			goto Clean_up;
    642 
    643 		if (m2 == 0) {
    644 			if (msf) {
    645 				m2 = toc_buffer[n].addr.msf.minute;
    646 				s2 = toc_buffer[n].addr.msf.second;
    647 				f2 = toc_buffer[n].addr.msf.frame;
    648 			} else {
    649 				lba2msf(be32toh(toc_buffer[n].addr.lba),
    650 				    &tm, &ts, &tf);
    651 				m2 = tm;
    652 				s2 = ts;
    653 				f2 = tf;
    654 			}
    655 		}
    656 		return (play_msf(m1, s1, f1, m2, s2, f2));
    657 	}
    658 	/*
    659 	 * Play track trk1 [ .idx1 ] [ trk2 [ .idx2 ] ]
    660 	 */
    661 	if (4 != sscanf(arg, "%d.%d%d.%d", &start, &istart, &end, &iend) &&
    662 	    3 != sscanf(arg, "%d.%d%d", &start, &istart, &end) &&
    663 	    3 != sscanf(arg, "%d%d.%d", &start, &end, &iend) &&
    664 	    2 != sscanf(arg, "%d.%d", &start, &istart) &&
    665 	    2 != sscanf(arg, "%d%d", &start, &end) &&
    666 	    1 != sscanf(arg, "%d", &start))
    667 		goto Clean_up;
    668 
    669 	if (end == 0)
    670 		end = n;
    671 	return (play_track(start, istart, end, iend));
    672 
    673 Clean_up:
    674 	warnx("invalid command arguments");
    675 	return (0);
    676 }
    677 
    678 char *
    679 strstatus(sts)
    680 	int sts;
    681 {
    682 
    683 	switch (sts) {
    684 	case ASTS_INVALID:
    685 		return ("invalid");
    686 	case ASTS_PLAYING:
    687 		return ("playing");
    688 	case ASTS_PAUSED:
    689 		return ("paused");
    690 	case ASTS_COMPLETED:
    691 		return ("completed");
    692 	case ASTS_ERROR:
    693 		return ("error");
    694 	case ASTS_VOID:
    695 		return ("not playing");
    696 	default:
    697 		return ("??");
    698 	}
    699 }
    700 
    701 int
    702 pstatus(arg)
    703 	char *arg;
    704 {
    705 	struct cd_sub_channel_info data;
    706 	struct ioc_read_subchannel ss;
    707 	int rc, trk, m, s, f;
    708 	struct ioc_vol v;
    709 	int what = 0;
    710 	char *p;
    711 
    712 	while ((p = strtok(arg, " \t"))) {
    713 		arg = 0;
    714 		if (!strncasecmp(p, "audio", strlen(p)))
    715 			what |= STATUS_AUDIO;
    716 		else {
    717 			if (!strncasecmp(p, "media", strlen(p)))
    718 				what |= STATUS_MEDIA;
    719 			else {
    720 				if (!strncasecmp(p, "volume", strlen(p)))
    721 					what |= STATUS_VOLUME;
    722 				else {
    723 					warnx("invalid command arguments");
    724 					return 0;
    725 				}
    726 			}
    727 		}
    728 	}
    729 	if (!what)
    730 		what = STATUS_AUDIO | STATUS_MEDIA | STATUS_VOLUME;
    731 	if (what & STATUS_AUDIO) {
    732 		rc = status(&trk, &m, &s, &f);
    733 		if (rc >= 0) {
    734 			printf("Audio status:\t%s\n", strstatus(rc));
    735 			printf("Current track:\t%d\n", trk);
    736 			printf("Position:\t%d:%02d.%02d\n", m, s, f);
    737 		} else
    738 			printf("Audio status:\tno info available\n");
    739 	}
    740 	if (what & STATUS_MEDIA) {
    741 		bzero(&ss, sizeof(ss));
    742 		ss.data = &data;
    743 		ss.data_len = sizeof(data);
    744 		ss.address_format = msf ? CD_MSF_FORMAT : CD_LBA_FORMAT;
    745 		ss.data_format = CD_MEDIA_CATALOG;
    746 		rc = ioctl(fd, CDIOCREADSUBCHANNEL, (char *) &ss);
    747 		if (rc >= 0) {
    748 			printf("Media catalog:\t%sactive",
    749 			    ss.data->what.media_catalog.mc_valid ? "" : "in");
    750 			if (ss.data->what.media_catalog.mc_valid &&
    751 			    ss.data->what.media_catalog.mc_number[0])
    752 				printf(" (%.15s)",
    753 				    ss.data->what.media_catalog.mc_number);
    754 			putchar('\n');
    755 		} else
    756 			printf("Media catalog:\tnone\n");
    757 	}
    758 	if (what & STATUS_VOLUME) {
    759 		rc = ioctl(fd, CDIOCGETVOL, &v);
    760 		if (rc >= 0) {
    761 				printf("Left volume:\t%d\n", v.vol[0]);
    762 				printf("Right volume:\t%d\n", v.vol[1]);
    763 		} else {
    764 			printf("Left volume:\tnot available\n");
    765 			printf("Right volume:\tnot available\n");
    766 		}
    767 	}
    768 	return (0);
    769 }
    770 
    771 int
    772 info(arg)
    773 	char *arg;
    774 {
    775 	struct ioc_toc_header h;
    776 	int rc, i, n;
    777 
    778 	if ((rc = ioctl(fd, CDIOREADTOCHEADER, &h)) < 0) {
    779 		warn("getting toc header");
    780 		return (rc);
    781 	}
    782 
    783 	n = h.ending_track - h.starting_track + 1;
    784 	rc = read_toc_entrys((n + 1) * sizeof(struct cd_toc_entry));
    785 	if (rc < 0)
    786 		return (rc);
    787 
    788 	printf("track     start  duration   block  length   type\n");
    789 	printf("-------------------------------------------------\n");
    790 
    791 	for (i = 0; i < n; i++) {
    792 		printf("%5d  ", toc_buffer[i].track);
    793 		prtrack(toc_buffer + i, 0);
    794 	}
    795 	printf("%5d  ", toc_buffer[n].track);
    796 	prtrack(toc_buffer + n, 1);
    797 	return (0);
    798 }
    799 
    800 void
    801 lba2msf(lba, m, s, f)
    802 	u_long lba;
    803 	u_char *m, *s, *f;
    804 {
    805 
    806 	lba += 150;		/* block start offset */
    807 	lba &= 0xffffff;	/* negative lbas use only 24 bits */
    808 	*m = lba / (60 * 75);
    809 	lba %= (60 * 75);
    810 	*s = lba / 75;
    811 	*f = lba % 75;
    812 }
    813 
    814 u_int
    815 msf2lba(m, s, f)
    816 	u_char m, s, f;
    817 {
    818 
    819 	return (((m * 60) + s) * 75 + f) - 150;
    820 }
    821 
    822 void
    823 prtrack(e, lastflag)
    824 	struct cd_toc_entry *e;
    825 	int lastflag;
    826 {
    827 	int block, next, len;
    828 	u_char m, s, f;
    829 
    830 	if (msf) {
    831 		/* Print track start */
    832 		printf("%2d:%02d.%02d  ", e->addr.msf.minute,
    833 		    e->addr.msf.second, e->addr.msf.frame);
    834 
    835 		block = msf2lba(e->addr.msf.minute, e->addr.msf.second,
    836 		    e->addr.msf.frame);
    837 	} else {
    838 		block = e->addr.lba;
    839 		lba2msf(block, &m, &s, &f);
    840 		/* Print track start */
    841 		printf("%2d:%02d.%02d  ", m, s, f);
    842 	}
    843 	if (lastflag) {
    844 		/* Last track -- print block */
    845 		printf("       -  %6d       -      -\n", block);
    846 		return;
    847 	}
    848 	if (msf)
    849 		next = msf2lba(e[1].addr.msf.minute, e[1].addr.msf.second,
    850 		    e[1].addr.msf.frame);
    851 	else
    852 		next = e[1].addr.lba;
    853 	len = next - block;
    854 	lba2msf(len, &m, &s, &f);
    855 
    856 	/* Print duration, block, length, type */
    857 	printf("%2d:%02d.%02d  %6d  %6d  %5s\n", m, s, f, block, len,
    858 	    (e->control & 4) ? "data" : "audio");
    859 }
    860 
    861 int
    862 play_track(tstart, istart, tend, iend)
    863 	int tstart, istart, tend, iend;
    864 {
    865 	struct ioc_play_track t;
    866 
    867 	t.start_track = tstart;
    868 	t.start_index = istart;
    869 	t.end_track = tend;
    870 	t.end_index = iend;
    871 
    872 	return (ioctl(fd, CDIOCPLAYTRACKS, &t));
    873 }
    874 
    875 int
    876 play_blocks(blk, len)
    877 	int blk, len;
    878 {
    879 	struct ioc_play_blocks t;
    880 
    881 	t.blk = blk;
    882 	t.len = len;
    883 
    884 	return (ioctl(fd, CDIOCPLAYBLOCKS, &t));
    885 }
    886 
    887 int
    888 setvol(left, right)
    889 	int left, right;
    890 {
    891 	struct ioc_vol v;
    892 
    893 	v.vol[0] = left;
    894 	v.vol[1] = right;
    895 	v.vol[2] = 0;
    896 	v.vol[3] = 0;
    897 
    898 	return (ioctl(fd, CDIOCSETVOL, &v));
    899 }
    900 
    901 int
    902 read_toc_entrys(len)
    903 	int len;
    904 {
    905 	struct ioc_read_toc_entry t;
    906 
    907 	t.address_format = msf ? CD_MSF_FORMAT : CD_LBA_FORMAT;
    908 	t.starting_track = 0;
    909 	t.data_len = len;
    910 	t.data = toc_buffer;
    911 
    912 	return (ioctl(fd, CDIOREADTOCENTRYS, (char *)&t));
    913 }
    914 
    915 int
    916 play_msf(start_m, start_s, start_f, end_m, end_s, end_f)
    917 	int start_m, start_s, start_f, end_m, end_s, end_f;
    918 {
    919 	struct ioc_play_msf a;
    920 
    921 	a.start_m = start_m;
    922 	a.start_s = start_s;
    923 	a.start_f = start_f;
    924 	a.end_m = end_m;
    925 	a.end_s = end_s;
    926 	a.end_f = end_f;
    927 
    928 	return (ioctl(fd, CDIOCPLAYMSF, (char *) &a));
    929 }
    930 
    931 int
    932 status(trk, min, sec, frame)
    933 	int *trk, *min, *sec, *frame;
    934 {
    935 	struct ioc_read_subchannel s;
    936 	struct cd_sub_channel_info data;
    937 	u_char mm, ss, ff;
    938 
    939 	bzero(&s, sizeof(s));
    940 	s.data = &data;
    941 	s.data_len = sizeof(data);
    942 	s.address_format = msf ? CD_MSF_FORMAT : CD_LBA_FORMAT;
    943 	s.data_format = CD_CURRENT_POSITION;
    944 
    945 	if (ioctl(fd, CDIOCREADSUBCHANNEL, (char *) &s) < 0)
    946 		return -1;
    947 
    948 	*trk = s.data->what.position.track_number;
    949 	if (msf) {
    950 		*min = s.data->what.position.reladdr.msf.minute;
    951 		*sec = s.data->what.position.reladdr.msf.second;
    952 		*frame = s.data->what.position.reladdr.msf.frame;
    953 	} else {
    954 		lba2msf(be32toh(s.data->what.position.reladdr.lba), &mm, &ss, &ff);
    955 		*min = mm;
    956 		*sec = ss;
    957 		*frame = ff;
    958 	}
    959 
    960 	return (s.data->header.audio_status);
    961 }
    962 
    963 char *
    964 prompt()
    965 {
    966 	return ("cdplay> ");
    967 }
    968 
    969 char *
    970 parse(buf, cmd)
    971 	char *buf;
    972 	int *cmd;
    973 {
    974 	struct cmdtab *c;
    975 	char *p, *q;
    976 	int len;
    977 
    978 	for (p = buf; isspace(*p); p++)
    979 		continue;
    980 
    981 	if (isdigit(*p) || (p[0] == '#' && isdigit(p[1]))) {
    982 		*cmd = CMD_PLAY;
    983 		return (p);
    984 	}
    985 
    986 	for (buf = p; *p && !isspace(*p); p++)
    987 		continue;
    988 
    989 	len = p - buf;
    990 	if (!len)
    991 		return (0);
    992 
    993 	if (*p) {		/* It must be a spacing character! */
    994 		*p++ = 0;
    995 		for (q = p; *q && *q != '\n' && *q != '\r'; q++)
    996 			continue;
    997 		*q = 0;
    998 	}
    999 
   1000 	*cmd = -1;
   1001 
   1002 	for (c = cmdtab; c->name; ++c) {
   1003 		/* Is it an exact match? */
   1004 		if (!strcasecmp(buf, c->name)) {
   1005 			*cmd = c->command;
   1006 			break;
   1007 		}
   1008 		/* Try short hand forms then... */
   1009 		if (len >= c->min && !strncasecmp(buf, c->name, len)) {
   1010 			if (*cmd != -1 && *cmd != c->command) {
   1011 				warnx("ambiguous command");
   1012 				return (0);
   1013 			}
   1014 			*cmd = c->command;
   1015 		}
   1016 	}
   1017 
   1018 	if (*cmd == -1) {
   1019 		warnx("invalid command, enter ``help'' for commands");
   1020 		return (0);
   1021 	}
   1022 
   1023 	while (isspace(*p))
   1024 		p++;
   1025 
   1026 	return (p);
   1027 }
   1028 
   1029 int
   1030 opencd()
   1031 {
   1032 	char devbuf[80];
   1033 	size_t len;
   1034 
   1035 	if (fd > -1)
   1036 		return (1);
   1037 
   1038 	if (*cdname == '/')
   1039 		strcpy(devbuf, cdname);
   1040 	else
   1041 		if (*cdname == 'r')
   1042 			len = sprintf(devbuf, "/dev/%s", cdname);
   1043 		else
   1044 			len = sprintf(devbuf, "/dev/r%s", cdname);
   1045 
   1046 	fd = open(devbuf, O_RDONLY);
   1047 
   1048 	if (fd < 0 && errno == ENOENT) {
   1049 		devbuf[len] = 'a' + RAW_PART;
   1050 		devbuf[len + 1] = '\0';
   1051 		fd = open(devbuf, O_RDONLY);
   1052 	}
   1053 
   1054 	if (fd < 0) {
   1055 		if (errno == ENXIO) {
   1056 			/* ENXIO has an overloaded meaning here. The original
   1057 			 * "Device not configured" should be interpreted as
   1058 			 * "No disc in drive %s". */
   1059 			warnx("no disc in drive %s", devbuf);
   1060 			return (0);
   1061 		}
   1062 		err(1, "%s", devbuf);
   1063 	}
   1064 
   1065 	return (1);
   1066 }
   1067