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NetBSD/usr.bin/cdplay/cdplay.c
rillig 7315869338 cdplay: remove redundant parentheses around return value 
Purely cosmetic change.  The generated code stays exactly the same.
2020-10-18 21:58:32 +00:00

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/* $NetBSD: cdplay.c,v 1.50 2020/10/18 21:58:32 rillig Exp $ */
/*
* Copyright (c) 1999, 2000, 2001 Andrew Doran.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*/
/*
* Compact Disc Control Utility, originally by Serge V. Vakulenko
* <vak@cronyx.ru>. First appeared in FreeBSD under the guise of
* cdcontrol(1). Based on the non-X based CD player by Jean-Marc
* Zucconi and Andrey A. Chernov. Fixed and further modified on
* by Jukka Ukkonen <jau@funet.fi>. Lots of fixes and improvements
* made subsequently by The NetBSD Project.
*
* from FreeBSD: cdcontrol.c,v 1.17.2.1 1999/01/31 15:36:01 billf Exp
*/
#include <sys/cdefs.h>
#ifndef lint
__RCSID("$NetBSD: cdplay.c,v 1.50 2020/10/18 21:58:32 rillig Exp $");
#endif /* not lint */
#include <sys/types.h>
#include <sys/endian.h>
#include <sys/ioctl.h>
#include <sys/file.h>
#include <sys/cdio.h>
#include <sys/time.h>
#include <sys/audioio.h>
#include <sys/scsiio.h>
#include <assert.h>
#include <ctype.h>
#include <err.h>
#include <errno.h>
#include <histedit.h>
#include <limits.h>
#include <sched.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <util.h>
enum cmd {
CMD_ANALOG,
CMD_CLOSE,
CMD_DIGITAL,
CMD_EJECT,
CMD_HELP,
CMD_INFO,
CMD_NEXT,
CMD_PAUSE,
CMD_PLAY,
CMD_PREV,
CMD_QUIT,
CMD_RESET,
CMD_RESUME,
CMD_SET,
CMD_SHUFFLE,
CMD_SINGLE,
CMD_SKIP,
CMD_STATUS,
CMD_STOP,
CMD_VOLUME,
};
static struct cmdtab {
enum cmd command;
const char *name;
u_int min;
const char *args;
} const cmdtab[] = {
{ CMD_ANALOG, "analog", 1, NULL },
{ CMD_CLOSE, "close", 1, NULL },
{ CMD_DIGITAL, "digital", 1, "fpw" },
{ CMD_EJECT, "eject", 1, NULL },
{ CMD_HELP, "?", 1, 0 },
{ CMD_HELP, "help", 1, NULL },
{ CMD_INFO, "info", 1, NULL },
{ CMD_NEXT, "next", 1, NULL },
{ CMD_PAUSE, "pause", 2, NULL },
{ CMD_PLAY, "play", 1, "[#block [len]]" },
{ CMD_PLAY, "play", 1, "min1:sec1[.fram1] [min2:sec2[.fram2]]" },
{ CMD_PLAY, "play", 1, "tr1 m1:s1[.f1] [[tr2] [m2:s2[.f2]]]" },
{ CMD_PLAY, "play", 1, "track1[.index1] [track2[.index2]]" },
{ CMD_PREV, "prev", 2, NULL },
{ CMD_QUIT, "quit", 1, NULL },
{ CMD_RESET, "reset", 4, NULL },
{ CMD_RESUME, "resume", 4, NULL },
{ CMD_SET, "set", 2, "msf | lba" },
{ CMD_SHUFFLE, "shuffle", 2, NULL },
{ CMD_SINGLE, "single", 2, "[<track>]" },
{ CMD_SKIP, "skip", 2, NULL },
{ CMD_STATUS, "status", 3, NULL },
{ CMD_STOP, "stop", 3, NULL },
{ CMD_VOLUME, "volume", 1, "<l> <r>|left|right|mute|mono|stereo" },
};
#define IOCTL_SIMPLE(fd, ctl) \
do { \
if (ioctl((fd), (ctl)) >= 0) { \
close(fd); \
fd = -1; \
} else \
warn("ioctl(" #ctl ")");\
} while (/* CONSTCOND */ 0)
#define CDDA_SIZE 2352
#define CD_MAX_TRACK 99 /* largest 2 digit BCD number */
static struct cd_toc_entry toc_buffer[CD_MAX_TRACK + 1];
static const char *cdname;
static int fd = -1;
static int msf = 1;
static int shuffle;
static int interactive = 1;
static int digital = 0;
static int tbvalid = 0;
static struct itimerval itv_timer;
static struct {
const char *auname;
u_char *audata, *aubuf;
int afd;
int fpw;
int lba_start, lba_end, lba_current;
int lowat, hiwat, readseek, playseek;
int playing, changed;
int read_errors;
} da;
static History *hist;
static HistEvent he;
static EditLine *elptr;
static int get_status(int *, int *, int *, int *, int *);
static void help(void);
static int info(void);
static void lba2msf(u_long, u_int *, u_int *, u_int *);
static u_int msf2lba(u_int, u_int, u_int);
static int opencd(void);
static int openaudio(void);
static const char *parse(char *, int *);
static int play(const char *, int);
static int play_blocks(int, int);
static int play_digital(u_int, u_int);
static int play_msf(u_int, u_int, u_int, u_int, u_int, u_int);
static int play_track(int, int, int, int);
static int print_status(void);
static void print_track(struct cd_toc_entry *);
static const char *prompt(void);
static int readaudio(int, int, int, u_char *);
static int read_toc_entries(size_t);
static int run(int, const char *);
static int start_analog(void);
static int start_digital(const char *);
static int setvol(int, int);
static void sig_timer(int);
static int skip(int, int);
static const char *strstatus(int);
__dead static void usage(void);
static void toc2msf(u_int, u_int *, u_int *, u_int *);
static int toc2lba(u_int);
static void addmsf(u_int *, u_int *, u_int *, u_int, u_int, u_int);
int
main(int argc, char **argv)
{
const char *arg;
char buf[80], *p;
static char defdev[16];
int cmd, c;
size_t len;
char *line;
const char *elline;
int scratch;
struct sigaction sa_timer;
const char *use_digital = NULL; /* historical default */
cdname = getenv("MUSIC_CD");
if (cdname == NULL)
cdname = getenv("CD_DRIVE");
if (cdname == NULL)
cdname = getenv("DISC");
if (cdname == NULL)
cdname = getenv("CDPLAY");
da.auname = getenv("AUDIODEV");
if (!da.auname)
da.auname = getenv("SPEAKER");
if (!da.auname)
da.auname = "/dev/sound";
use_digital = getenv("CDPLAY_DIGITAL");
while ((c = getopt(argc, argv, "a:f:h")) != -1)
switch (c) {
case 'a':
da.auname = optarg;
if (!use_digital)
use_digital = "";
continue;
case 'f':
cdname = optarg;
continue;
case 'h':
default:
usage();
/* NOTREACHED */
}
argc -= optind;
argv += optind;
if (argc > 0 && strcasecmp(*argv, "help") == 0)
usage();
if (cdname == NULL) {
snprintf(defdev, sizeof(defdev), "cd0%c",
'a' + getrawpartition());
cdname = defdev;
}
opencd();
da.afd = -1;
sigemptyset(&sa_timer.sa_mask);
sa_timer.sa_handler = sig_timer;
sa_timer.sa_flags = SA_RESTART;
if (sigaction(SIGALRM, &sa_timer, NULL) < 0)
err(EXIT_FAILURE, "sigaction()");
if (use_digital)
start_digital(use_digital);
if (argc > 0) {
interactive = 0;
for (p = buf; argc-- > 0; argv++) {
len = strlen(*argv);
if (p + len >= buf + sizeof(buf) - 1)
usage();
if (p > buf)
*p++ = ' ';
strlcpy(p, *argv, sizeof(buf) - (p - buf));
p += len;
}
*p = '\0';
arg = parse(buf, &cmd);
return run(cmd, arg);
}
setbuf(stdout, NULL);
printf("Type `?' for command list\n\n");
hist = history_init();
history(hist, &he, H_SETSIZE, 100); /* 100 elt history buffer */
elptr = el_init(getprogname(), stdin, stdout, stderr);
el_set(elptr, EL_EDITOR, "emacs");
el_set(elptr, EL_PROMPT, prompt);
el_set(elptr, EL_HIST, history, hist);
el_set(elptr, EL_SIGNAL, 1);
el_source(elptr, NULL);
for (;;) {
line = NULL;
arg = NULL;
do {
if (((elline = el_gets(elptr, &scratch)) != NULL)
&& (scratch != 0)){
history(hist, &he, H_ENTER, elline);
line = strdup(elline);
if (line != NULL) {
arg = parse(line, &cmd);
free(line);
}
} else {
cmd = CMD_QUIT;
fprintf(stderr, "\r\n");
arg = NULL;
break;
}
} while (arg == NULL);
if (run(cmd, arg) < 0) {
if (fd != -1)
close(fd);
fd = -1;
}
}
/*NOTREACHED*/
el_end(elptr);
history_end(hist);
exit(EXIT_SUCCESS);
}
static void
usage(void)
{
fprintf(stderr, "Usage: %s [-a audio_device] [-f cd_device] [command ...]\n", getprogname());
exit(EXIT_FAILURE);
/* NOTREACHED */
}
static void
help(void)
{
const struct cmdtab *c, *mc;
const char *s;
int i, n;
mc = cmdtab + sizeof(cmdtab) / sizeof(cmdtab[0]);
for (c = cmdtab; c < mc; c++) {
for (i = c->min, s = c->name; *s != '\0'; s++, i--) {
n = (i > 0 ? toupper((unsigned char)*s) : *s);
putchar(n);
}
if (c->args != NULL)
printf(" %s", c->args);
putchar('\n');
}
printf(
"\nThe word \"play\" is not required for the play commands.\n"
"The plain target address is taken as a synonym for play.\n");
}
static int
start_digital(const char *arg)
{
int fpw, intv_usecs, hz_usecs, rv;
fpw = atoi(arg);
if (fpw > 0)
da.fpw = fpw;
else
da.fpw = 5;
da.read_errors = 0;
/* real rate: 75 frames per second */
intv_usecs = 13333 * da.fpw;
/*
* interrupt earlier for safety, by a value which
* doesn't hurt interactive response if we block
* in the signal handler
*/
intv_usecs -= 50000;
hz_usecs = (int)(1000000 / sysconf(_SC_CLK_TCK));
if (intv_usecs < hz_usecs) {
/* can't have a shorter interval, increase
buffer size to compensate */
da.fpw += (hz_usecs - intv_usecs) / 13333;
intv_usecs = hz_usecs;
}
da.aubuf = malloc(da.fpw * CDDA_SIZE);
if (da.aubuf == NULL) {
warn("Not enough memory for audio buffers");
return 1;
}
if (da.afd == -1 && !openaudio()) {
warn("Cannot open audio device");
return 1;
}
itv_timer.it_interval.tv_sec = itv_timer.it_value.tv_sec =
intv_usecs / 1000000;
itv_timer.it_interval.tv_usec = itv_timer.it_value.tv_usec =
intv_usecs % 1000000;
rv = setitimer(ITIMER_REAL, &itv_timer, NULL);
if (rv == 0)
digital = 1;
else
warn("setitimer in CMD_DIGITAL");
msf = 0;
tbvalid = 0;
return rv;
}
static int
start_analog(void)
{
int rv;
if (shuffle == 1)
itv_timer.it_interval.tv_sec = itv_timer.it_value.tv_sec = 1;
else
itv_timer.it_interval.tv_sec = itv_timer.it_value.tv_sec = 0;
itv_timer.it_interval.tv_usec = itv_timer.it_value.tv_usec = 0;
digital = 0;
rv = setitimer(ITIMER_REAL, &itv_timer, NULL);
free(da.audata);
close(da.afd);
da.afd = -1;
return rv;
}
static int
run(int cmd, const char *arg)
{
int l, r, rv;
rv = 0;
if (cmd == CMD_QUIT) {
close(fd);
exit(EXIT_SUCCESS);
/* NOTREACHED */
}
if (fd < 0 && !opencd())
return 0;
switch (cmd) {
case CMD_INFO:
rv = info();
break;
case CMD_STATUS:
rv = print_status();
break;
case CMD_PAUSE:
if (digital) {
da.playing = 0;
return 0;
} else if ((rv = ioctl(fd, CDIOCPAUSE)) < 0)
warn("ioctl(CDIOCPAUSE)");
break;
case CMD_RESUME:
if (digital) {
da.playing = 1;
return 0;
} else if ((rv = ioctl(fd, CDIOCRESUME)) < 0)
warn("ioctl(CDIOCRESUME)");
break;
case CMD_STOP:
if (digital) {
da.playing = 0;
return 0;
} else {
if ((rv = ioctl(fd, CDIOCSTOP)) < 0)
warn("ioctl(CDIOCSTOP)");
if (ioctl(fd, CDIOCALLOW) < 0)
warn("ioctl(CDIOCALLOW)");
}
break;
case CMD_RESET:
tbvalid = 0;
IOCTL_SIMPLE(fd, CDIOCRESET);
return 0;
case CMD_EJECT:
tbvalid = 0;
if (digital)
da.playing = 0;
if (shuffle)
rv = run(CMD_SHUFFLE, NULL);
if (ioctl(fd, CDIOCALLOW) < 0)
warn("ioctl(CDIOCALLOW)");
IOCTL_SIMPLE(fd, CDIOCEJECT);
break;
case CMD_CLOSE:
if (ioctl(fd, CDIOCALLOW) < 0)
warn("ioctl(CDIOCALLOW)");
IOCTL_SIMPLE(fd, CDIOCCLOSE);
if (interactive && fd == -1)
opencd();
break;
case CMD_PLAY:
while (isspace((unsigned char)*arg))
arg++;
rv = play(arg, 1);
break;
case CMD_PREV:
rv = skip(-1, 1);
break;
case CMD_NEXT:
rv = skip(1, 1);
break;
case CMD_SINGLE:
if (interactive == 0)
errx(EXIT_FAILURE,
"'single' valid only in interactive mode");
/*FALLTHROUGH*/
case CMD_SHUFFLE:
if (interactive == 0)
errx(EXIT_FAILURE,
"`shuffle' valid only in interactive mode");
if (shuffle == 0) {
if (digital == 0) {
itv_timer.it_interval.tv_sec = 1;
itv_timer.it_interval.tv_usec = 0;
itv_timer.it_value.tv_sec = 1;
itv_timer.it_value.tv_usec = 0;
if (setitimer(ITIMER_REAL, &itv_timer, NULL) == 0) {
if (cmd == CMD_SHUFFLE) {
shuffle = 1;
} else {
while (isspace((unsigned char)*arg))
arg++;
shuffle = -atoi(arg);
}
}
} else
shuffle = cmd == CMD_SINGLE ? -atoi(arg) : 1;
/*
if (shuffle)
rv = skip(0, 1);
*/
} else {
if (digital == 0) {
itv_timer.it_interval.tv_sec = 0;
itv_timer.it_interval.tv_usec = 0;
itv_timer.it_value.tv_sec = 0;
itv_timer.it_value.tv_usec = 0;
setitimer(ITIMER_REAL, &itv_timer, NULL);
}
shuffle = 0;
}
if (shuffle < 0)
printf("single track:\t%d\n", -shuffle);
else
printf("shuffle play:\t%s\n", (shuffle != 0) ? "on" : "off");
rv = 0;
break;
case CMD_DIGITAL:
if (digital == 0)
rv = start_digital(arg);
else {
warnx("Already in digital mode");
rv = 1;
}
break;
case CMD_ANALOG:
if (digital == 1)
rv = start_analog();
else {
warnx("Already in analog mode");
rv = 1;
}
break;
case CMD_SKIP:
if (!interactive)
errx(EXIT_FAILURE,
"`skip' valid only in interactive mode");
if (!shuffle)
warnx("`skip' valid only in shuffle mode");
else
rv = skip(0, 1);
break;
case CMD_SET:
tbvalid = 0;
if (strcasecmp(arg, "msf") == 0)
msf = 1;
else if (strcasecmp(arg, "lba") == 0)
msf = 0;
else
warnx("invalid command arguments");
break;
case CMD_VOLUME:
if (digital) {
rv = 0;
warnx("`volume' is ignored while in digital xfer mode");
} else if (strncasecmp(arg, "left", strlen(arg)) == 0)
rv = ioctl(fd, CDIOCSETLEFT);
else if (strncasecmp(arg, "right", strlen(arg)) == 0)
rv = ioctl(fd, CDIOCSETRIGHT);
else if (strncasecmp(arg, "mono", strlen(arg)) == 0)
rv = ioctl(fd, CDIOCSETMONO);
else if (strncasecmp(arg, "stereo", strlen(arg)) == 0)
rv = ioctl(fd, CDIOCSETSTEREO);
else if (strncasecmp(arg, "mute", strlen(arg)) == 0)
rv = ioctl(fd, CDIOCSETMUTE);
else {
rv = 0;
if (sscanf(arg, "%d %d", &l, &r) != 2) {
if (sscanf(arg, "%d", &l) == 1)
r = l;
else {
warnx("invalid command arguments");
break;
}
}
rv = setvol(l, r);
}
break;
case CMD_HELP:
default:
help();
rv = 0;
break;
}
return rv;
}
static int
play(const char *arg, int fromuser)
{
int start, end, istart, iend, blk, len, relend;
ssize_t rv;
u_int n, tr1, tr2, m1, m2, s1, s2, f1, f2, tm, ts, tf;
struct ioc_toc_header h;
if (shuffle && fromuser) {
warnx("`play' not valid in shuffle mode");
return 0;
}
if ((rv = ioctl(fd, CDIOREADTOCHEADER, &h)) < 0) {
warn("ioctl(CDIOREADTOCHEADER)");
return (int)rv;
}
end = 0;
istart = iend = 1;
n = h.ending_track - h.starting_track + 1;
rv = read_toc_entries((n + 1) * sizeof(struct cd_toc_entry));
if (rv < 0)
return (int)rv;
if (arg == NULL || *arg == '\0') {
/* Play the whole disc */
return play_track(h.starting_track, 1, h.ending_track, 99);
}
if (strchr(arg, '#') != NULL) {
/* Play block #blk [ len ] */
len = 0;
if (2 != sscanf(arg, "#%d%d", &blk, &len) &&
1 != sscanf(arg, "#%d", &blk))
goto Clean_up;
if (len == 0) {
len = toc2lba(n);
}
return play_blocks(blk, len);
}
if (strchr(arg, ':') != NULL) {
/*
* Play MSF m1:s1 [ .f1 ] [ m2:s2 [ .f2 ] ]
*
* Will now also understand timed addresses relative
* to the beginning of a track in the form...
*
* tr1 m1:s1[.f1] [[tr2] [m2:s2[.f2]]]
*/
relend = 1;
tr2 = m2 = s2 = f2 = f1 = 0;
if (8 == sscanf(arg, "%u %u:%u.%u %u %u:%u.%u", &tr1, &m1,
&s1, &f1, &tr2, &m2, &s2, &f2))
goto Play_Relative_Addresses;
tr2 = m2 = s2 = f2 = f1 = 0;
if (7 == sscanf(arg, "%u %u:%u %u %u:%u.%u", &tr1, &m1, &s1,
&tr2, &m2, &s2, &f2))
goto Play_Relative_Addresses;
tr2 = m2 = s2 = f2 = f1 = 0;
if (7 == sscanf(arg, "%u %u:%u.%u %u %u:%u", &tr1, &m1, &s1,
&f1, &tr2, &m2, &s2))
goto Play_Relative_Addresses;
tr2 = m2 = s2 = f2 = f1 = 0;
if (7 == sscanf(arg, "%u %u:%u.%u %u:%u.%u", &tr1, &m1, &s1,
&f1, &m2, &s2, &f2))
goto Play_Relative_Addresses;
tr2 = m2 = s2 = f2 = f1 = 0;
if (6 == sscanf(arg, "%u %u:%u.%u %u:%u", &tr1, &m1, &s1, &f1,
&m2, &s2))
goto Play_Relative_Addresses;
tr2 = m2 = s2 = f2 = f1 = 0;
if (6 == sscanf(arg, "%u %u:%u %u:%u.%u", &tr1, &m1, &s1, &m2,
&s2, &f2))
goto Play_Relative_Addresses;
tr2 = m2 = s2 = f2 = f1 = 0;
if (6 == sscanf(arg, "%u %u:%u.%u %u %u", &tr1, &m1, &s1, &f1,
&tr2, &m2))
goto Play_Relative_Addresses;
tr2 = m2 = s2 = f2 = f1 = 0;
if (6 == sscanf(arg, "%u %u:%u %u %u:%u", &tr1, &m1, &s1, &tr2,
&m2, &s2))
goto Play_Relative_Addresses;
tr2 = m2 = s2 = f2 = f1 = 0;
if (5 == sscanf(arg, "%u %u:%u %u:%u", &tr1, &m1, &s1, &m2,
&s2))
goto Play_Relative_Addresses;
tr2 = m2 = s2 = f2 = f1 = 0;
if (5 == sscanf(arg, "%u %u:%u %u %u", &tr1, &m1, &s1, &tr2,
&m2))
goto Play_Relative_Addresses;
relend=0;
tr2 = m2 = s2 = f2 = f1 = 0;
if (5 == sscanf(arg, "%u %u:%u.%u %u", &tr1, &m1, &s1, &f1,
&tr2))
goto Play_Relative_Addresses;
tr2 = m2 = s2 = f2 = f1 = 0;
if (4 == sscanf(arg, "%u %u:%u %u", &tr1, &m1, &s1, &tr2))
goto Play_Relative_Addresses;
tr2 = m2 = s2 = f2 = f1 = 0;
if (4 == sscanf(arg, "%u %u:%u.%u", &tr1, &m1, &s1, &f1))
goto Play_Relative_Addresses;
tr2 = m2 = s2 = f2 = f1 = 0;
if (3 == sscanf(arg, "%u %u:%u", &tr1, &m1, &s1))
goto Play_Relative_Addresses;
tr2 = m2 = s2 = f2 = f1 = 0;
goto Try_Absolute_Timed_Addresses;
Play_Relative_Addresses:
if (!tr1)
tr1 = 1;
else if (tr1 > n)
tr1 = n;
toc2msf(tr1-1, &tm, &ts, &tf);
addmsf(&m1, &s1, &f1, tm, ts, tf);
toc2msf(tr1, &tm, &ts, &tf);
if ((m1 > tm) || ((m1 == tm) && ((s1 > ts) || ((s1 == ts) &&
(f1 > tf))))) {
warnx("Track %d is not that long.", tr1);
return 0;
}
tr1--; /* XXXXX ???? */
if (!tr2) {
if (relend) {
tr2 = tr1;
addmsf(&m2, &s2, &f2, m1, s1, f1);
} else {
tr2 = n;
toc2msf(n, &m2, &s2, &f2);
}
} else {
if (tr2 > n) {
tr2 = n;
m2 = s2 = f2 = 0;
} else {
if (relend)
tr2--;
toc2msf(tr2, &tm, &ts, &tf);
addmsf(&m2, &s2, &f2, tm, ts, tf);
}
}
toc2msf(n, &tm, &ts, &tf);
if ((tr2 < n) && ((m2 > tm) || ((m2 == tm) && ((s2 > ts) ||
((s2 == ts) && (f2 > tf)))))) {
warnx("The playing time of the disc is not that long.");
return 0;
}
return play_msf(m1, s1, f1, m2, s2, f2);
Try_Absolute_Timed_Addresses:
m2 = UINT_MAX;
if (6 != sscanf(arg, "%d:%d.%d%d:%d.%d",
&m1, &s1, &f1, &m2, &s2, &f2) &&
5 != sscanf(arg, "%d:%d.%d%d:%d", &m1, &s1, &f1, &m2, &s2) &&
5 != sscanf(arg, "%d:%d%d:%d.%d", &m1, &s1, &m2, &s2, &f2) &&
3 != sscanf(arg, "%d:%d.%d", &m1, &s1, &f1) &&
4 != sscanf(arg, "%d:%d%d:%d", &m1, &s1, &m2, &s2) &&
2 != sscanf(arg, "%d:%d", &m1, &s1))
goto Clean_up;
if (m2 == UINT_MAX) {
if (msf) {
m2 = toc_buffer[n].addr.msf.minute;
s2 = toc_buffer[n].addr.msf.second;
f2 = toc_buffer[n].addr.msf.frame;
} else {
lba2msf(toc_buffer[n].addr.lba, &tm, &ts, &tf);
m2 = tm;
s2 = ts;
f2 = tf;
}
}
return play_msf(m1, s1, f1, m2, s2, f2);
}
/*
* Play track trk1 [ .idx1 ] [ trk2 [ .idx2 ] ]
*/
if (4 != sscanf(arg, "%d.%d%d.%d", &start, &istart, &end, &iend) &&
3 != sscanf(arg, "%d.%d%d", &start, &istart, &end) &&
3 != sscanf(arg, "%d%d.%d", &start, &end, &iend) &&
2 != sscanf(arg, "%d.%d", &start, &istart) &&
2 != sscanf(arg, "%d%d", &start, &end) &&
1 != sscanf(arg, "%d", &start))
goto Clean_up;
if (end == 0)
end = n;
return play_track(start, istart, end, iend);
Clean_up:
warnx("invalid command arguments");
return 0;
}
static void
/*ARGSUSED*/
sig_timer(int sig)
{
int aulen, fpw;
sigset_t anymore;
sigpending(&anymore);
if (sigismember(&anymore, SIGALRM))
return;
if (digital) {
if (!da.playing)
return;
if (da.changed) {
da.lba_current = da.lba_start;
da.changed = 0;
}
/* read frames into circular buffer */
fpw = da.lba_end - da.lba_current + 1;
if (fpw > da.fpw)
fpw = da.fpw;
if (fpw > 0) {
aulen = readaudio(fd, da.lba_current, fpw, da.aubuf);
if (aulen > 0) {
(void)write(da.afd, da.aubuf, aulen);
da.lba_current += fpw;
}
}
if (da.lba_current > da.lba_end)
da.playing = 0;
}
if (shuffle)
skip(0, 0);
#if 0
sched_yield();
#endif
setitimer(ITIMER_REAL, &itv_timer, NULL);
}
static int
skip(int dir, int fromuser)
{
char str[16];
int rv, trk, idx, m, s, f;
struct ioc_toc_header h;
if ((rv = ioctl(fd, CDIOREADTOCHEADER, &h)) < 0) {
warn("ioctl(CDIOREADTOCHEADER)");
return rv;
}
if ((rv = get_status(&trk, &idx, &m, &s, &f)) < 0)
return rv;
if (dir == 0 || shuffle != 0) {
if (fromuser || (rv != CD_AS_PLAY_IN_PROGRESS &&
rv != CD_AS_PLAY_PAUSED))
trk = shuffle < 0 ? (-shuffle) :
(int)((h.starting_track +
arc4random() % (h.ending_track - h.starting_track + 1)));
else
return 0;
} else {
trk += dir;
if (trk > h.ending_track)
trk = h.starting_track;
else if(trk < h.starting_track)
trk = h.ending_track;
}
if (shuffle)
snprintf(str, sizeof(str), "%d %d", trk, trk);
else
snprintf(str, sizeof(str), "%d", trk);
return play(str, 0);
}
static const char *
strstatus(int sts)
{
const char *str;
switch (sts) {
case CD_AS_AUDIO_INVALID:
str = "invalid";
break;
case CD_AS_PLAY_IN_PROGRESS:
str = "playing";
break;
case CD_AS_PLAY_PAUSED:
str = "paused";
break;
case CD_AS_PLAY_COMPLETED:
str = "completed";
break;
case CD_AS_PLAY_ERROR:
str = "error";
break;
case CD_AS_NO_STATUS:
str = "not playing";
break;
default:
str = "<unknown>";
break;
}
return str;
}
static int
print_status(void)
{
struct cd_sub_channel_info data;
struct ioc_read_subchannel ss;
int rv, trk, idx, m, s, f;
struct ioc_vol v;
if ((rv = get_status(&trk, &idx, &m, &s, &f)) >= 0) {
printf("audio status:\t%s\n", strstatus(rv));
printf("current track:\t%d\n", trk);
if (!digital)
printf("current index:\t%d\n", idx);
printf("position:\t%d:%02d.%02d\n", m, s, f);
} else
printf("audio status:\tno info available\n");
if (shuffle < 0)
printf("single track:\t%d\n", -shuffle);
else
printf("shuffle play:\t%s\n", (shuffle != 0) ? "on" : "off");
if (digital)
printf("digital xfer:\tto %s "
"(%d frames per wakeup, %lld.%06lds period)\n",
da.auname, da.fpw,
(long long)itv_timer.it_interval.tv_sec,
(long)itv_timer.it_interval.tv_usec);
else
printf("digital xfer:\toff\n");
bzero(&ss, sizeof(ss));
ss.data = &data;
ss.data_len = sizeof(data);
ss.address_format = msf ? CD_MSF_FORMAT : CD_LBA_FORMAT;
ss.data_format = CD_MEDIA_CATALOG;
if (!digital && ioctl(fd, CDIOCREADSUBCHANNEL, &ss) >= 0) {
printf("media catalog:\t%sactive",
ss.data->what.media_catalog.mc_valid ? "" : "in");
if (ss.data->what.media_catalog.mc_valid &&
ss.data->what.media_catalog.mc_number[0])
printf(" (%.15s)",
ss.data->what.media_catalog.mc_number);
putchar('\n');
} else
printf("media catalog:\tnone\n");
if (digital)
return 0;
if (ioctl(fd, CDIOCGETVOL, &v) >= 0) {
printf("left volume:\t%d\n", v.vol[0]);
printf("right volume:\t%d\n", v.vol[1]);
} else {
printf("left volume:\tnot available\n");
printf("right volume:\tnot available\n");
}
return 0;
}
static int
info(void)
{
struct ioc_toc_header h;
int rc, i, n;
if ((rc = ioctl(fd, CDIOREADTOCHEADER, &h)) < 0) {
warn("ioctl(CDIOREADTOCHEADER)");
return rc;
}
n = h.ending_track - h.starting_track + 1;
rc = read_toc_entries((n + 1) * sizeof(struct cd_toc_entry));
if (rc < 0)
return rc;
printf("track start duration block length type\n");
printf("--------------------------------------------------\n");
for (i = 0; i < n; i++) {
printf("%5d ", toc_buffer[i].track);
print_track(toc_buffer + i);
}
printf(" - "); /* Lead-out area */
print_track(toc_buffer + n);
return 0;
}
static void
lba2msf(u_long lba, u_int *m, u_int *s, u_int *f)
{
lba += 150; /* block start offset */
lba &= 0xffffff; /* negative lbas use only 24 bits */
*m = (u_int)(lba / (60 * 75));
lba %= (60 * 75);
*s = (u_int)(lba / 75);
*f = (u_int)(lba % 75);
}
static u_int
msf2lba(u_int m, u_int s, u_int f)
{
return (((m * 60) + s) * 75 + f) - 150;
}
static void
print_track(struct cd_toc_entry *e)
{
int block, next, len;
u_int m, s, f;
if (msf) {
/* Print track start */
printf("%2d:%02d.%02d ", e->addr.msf.minute,
e->addr.msf.second, e->addr.msf.frame);
block = msf2lba((u_int)e->addr.msf.minute,
(u_int)e->addr.msf.second, (u_int)e->addr.msf.frame);
} else {
block = e->addr.lba;
lba2msf(block, &m, &s, &f);
/* Print track start */
printf("%2d:%02d.%02d ", m, s, f);
}
if (e->track > CD_MAX_TRACK) {
/* lead-out area -- print block */
printf(" - %6d - lead-out\n", block);
return;
}
if (msf)
next = msf2lba((u_int)e[1].addr.msf.minute,
(u_int)e[1].addr.msf.second, (u_int)e[1].addr.msf.frame);
else
next = e[1].addr.lba;
len = next - block;
/* XXX: take into account the 150 frame start offset time */
/* XXX: this is a mis-use of lba2msf() because 'len' is a */
/* XXX: length in frames and not a LBA! */
lba2msf(len - 150, &m, &s, &f);
/* Print duration, block, length, type */
printf("%2d:%02d.%02d %6d %6d %8s\n", m, s, f, block, len,
(e->control & 4) ? "data" : "audio");
}
static int
play_track(int tstart, int istart, int tend, int iend)
{
struct ioc_play_track t;
int rv;
if (digital) {
tstart--;
if (msf) {
return play_msf(
(u_int)toc_buffer[tstart].addr.msf.minute,
(u_int)toc_buffer[tstart].addr.msf.second,
(u_int)toc_buffer[tstart].addr.msf.frame,
(u_int)toc_buffer[tend].addr.msf.minute,
(u_int)toc_buffer[tend].addr.msf.second,
(u_int)toc_buffer[tend].addr.msf.frame);
} else
return play_digital(toc_buffer[tstart].addr.lba,
toc_buffer[tend].addr.lba);
}
t.start_track = tstart;
t.start_index = istart;
t.end_track = tend;
t.end_index = iend;
if ((rv = ioctl(fd, CDIOCPLAYTRACKS, &t)) < 0) {
int oerrno = errno;
if (errno == EINVAL && start_digital("") == 0)
return play_track(tstart, istart, tend, iend);
errno = oerrno;
warn("ioctl(CDIOCPLAYTRACKS)");
}
return rv;
}
static int
play_blocks(int blk, int len)
{
struct ioc_play_blocks t;
int rv;
t.blk = blk;
t.len = len;
if ((rv = ioctl(fd, CDIOCPLAYBLOCKS, &t)) < 0)
warn("ioctl(CDIOCPLAYBLOCKS");
return rv;
}
static int
play_digital(u_int start, u_int end)
{
da.lba_start = start;
da.lba_end = --end;
da.changed = da.playing = 1;
if (!interactive)
while (da.playing)
sleep(1);
return 0;
}
static int
setvol(int left, int right)
{
struct ioc_vol v;
int rv;
v.vol[0] = left;
v.vol[1] = right;
v.vol[2] = 0;
v.vol[3] = 0;
if ((rv = ioctl(fd, CDIOCSETVOL, &v)) < 0)
warn("ioctl(CDIOCSETVOL)");
return rv;
}
static int
read_toc_entries(size_t len)
{
struct ioc_read_toc_entry t;
int rv;
t.address_format = msf ? CD_MSF_FORMAT : CD_LBA_FORMAT;
t.starting_track = 0;
t.data_len = (int)len;
t.data = toc_buffer;
if ((rv = ioctl(fd, CDIOREADTOCENTRYS, &t)) < 0)
warn("ioctl(CDIOREADTOCENTRYS)");
tbvalid = 1;
return rv;
}
static int
play_msf(u_int start_m, u_int start_s, u_int start_f, u_int end_m, u_int end_s,
u_int end_f)
{
struct ioc_play_msf a;
int rv;
if (digital)
return play_digital(msf2lba(start_m, start_s, start_f),
msf2lba(end_m, end_s, end_f));
a.start_m = start_m;
a.start_s = start_s;
a.start_f = start_f;
a.end_m = end_m;
a.end_s = end_s;
a.end_f = end_f;
if ((rv = ioctl(fd, CDIOCPLAYMSF, &a)) < 0)
warn("ioctl(CDIOCPLAYMSF)");
return rv;
}
static int
get_status(int *trk, int *idx, int *min, int *sec, int *frame)
{
struct ioc_read_subchannel s;
struct cd_sub_channel_info data;
struct ioc_toc_header h;
u_int mm, ss, ff;
int rv;
int i, n, rc;
uint32_t lba;
if (!tbvalid) {
if ((rc = ioctl(fd, CDIOREADTOCHEADER, &h)) < 0) {
warn("ioctl(CDIOREADTOCHEADER)");
return rc;
}
n = h.ending_track - h.starting_track + 1;
rc = read_toc_entries((n + 1) * sizeof(struct cd_toc_entry));
if (rc < 0)
return rc;
}
#define SWAPLBA(x) (msf?be32toh(x):(x))
if (digital && da.playing) {
lba = da.lba_current + 150;
for (i = 1; i < 99; i++) {
if (lba < SWAPLBA(toc_buffer[i].addr.lba)) {
lba -= SWAPLBA(toc_buffer[i - 1].addr.lba);
*trk = i;
break;
}
}
lba2msf(lba - 150, &mm, &ss, &ff);
*min = mm;
*sec = ss;
*frame = ff;
*idx = 0;
return CD_AS_PLAY_IN_PROGRESS;
}
bzero(&s, sizeof(s));
s.data = &data;
s.data_len = sizeof(data);
s.address_format = msf ? CD_MSF_FORMAT : CD_LBA_FORMAT;
s.data_format = CD_CURRENT_POSITION;
if ((rv = ioctl(fd, CDIOCREADSUBCHANNEL, &s)) < 0) {
warn("ioctl(CDIOCREADSUBCHANNEL)");
return rv;
}
*trk = s.data->what.position.track_number;
*idx = s.data->what.position.index_number;
if (msf) {
*min = s.data->what.position.reladdr.msf.minute;
*sec = s.data->what.position.reladdr.msf.second;
*frame = s.data->what.position.reladdr.msf.frame;
} else {
lba2msf(s.data->what.position.reladdr.lba, &mm,
&ss, &ff);
*min = mm;
*sec = ss;
*frame = ff;
}
return s.data->header.audio_status;
}
static const char *
prompt(void)
{
return "cdplay> ";
}
static const char *
parse(char *buf, int *cmd)
{
const struct cmdtab *c, *mc;
char *p, *q;
size_t len;
for (p = buf; isspace((unsigned char)*p); p++)
continue;
if (isdigit((unsigned char)*p) || (p[0] == '#' && isdigit((unsigned char)p[1]))) {
*cmd = CMD_PLAY;
return p;
}
for (buf = p; *p != '\0' && !isspace((unsigned char)*p); p++)
continue;
if ((len = p - buf) == 0)
return NULL;
if (*p != '\0') { /* It must be a spacing character! */
*p++ = 0;
for (q = p; *q != '\0' && *q != '\n' && *q != '\r'; q++)
continue;
*q = 0;
}
*cmd = -1;
mc = cmdtab + sizeof(cmdtab) / sizeof(cmdtab[0]);
for (c = cmdtab; c < mc; c++) {
/* Is it an exact match? */
if (strcasecmp(buf, c->name) == 0) {
*cmd = c->command;
break;
}
/* Try short hand forms then... */
if (len >= c->min && strncasecmp(buf, c->name, len) == 0) {
if (*cmd != -1 && *cmd != (int)c->command) {
warnx("ambiguous command");
return NULL;
}
*cmd = c->command;
}
}
if (*cmd == -1) {
warnx("invalid command, enter ``help'' for commands");
return NULL;
}
while (isspace((unsigned char)*p))
p++;
return p;
}
static int
opencd(void)
{
char devbuf[80];
if (fd > -1)
return 1;
fd = opendisk(cdname, O_RDONLY, devbuf, sizeof(devbuf), 0);
if (fd < 0) {
if (errno == ENXIO) {
/*
* ENXIO has an overloaded meaning here. The
* original "Device not configured" should be
* interpreted as "No disc in drive %s".
*/
warnx("no disc in drive %s", devbuf);
return 0;
}
err(EXIT_FAILURE, "%s", devbuf);
}
return 1;
}
static int
openaudio(void)
{
audio_info_t ai;
audio_encoding_t ae;
int rc, aei;
if (da.afd > -1)
return 1;
da.afd = open(da.auname, O_WRONLY);
if (da.afd < 0) {
warn("openaudio");
return 0;
}
AUDIO_INITINFO(&ai);
ae.index = 0;
aei = -1;
rc = ioctl(da.afd, AUDIO_GETENC, &ae);
do {
if (ae.encoding == AUDIO_ENCODING_SLINEAR_LE && ae.precision == 16)
aei = ae.index;
ae.index++;
rc = ioctl(da.afd, AUDIO_GETENC, &ae);
} while (rc == 0);
if (aei == -1) {
warn("No suitable audio encoding found!");
close(da.afd);
da.afd = -1;
return 0;
}
ai.mode = AUMODE_PLAY_ALL;
ai.play.sample_rate = 44100;
ai.play.channels = 2;
ai.play.precision = 16;
ai.play.encoding = AUDIO_ENCODING_SLINEAR_LE;
ai.blocksize = 0;
rc = ioctl(da.afd, AUDIO_SETINFO, &ai);
if (rc < 0) {
warn("AUDIO_SETINFO");
close(da.afd);
da.afd = -1;
return 0;
}
return 1;
}
static int
readaudio(int afd, int lba, int blocks, u_char *data)
{
struct scsireq sc;
int rc;
memset(&sc, 0, sizeof(sc));
sc.cmd[0] = 0xBE;
sc.cmd[1] = 1 << 2;
sc.cmd[2] = ((u_int)lba >> 24) & 0xff;
sc.cmd[3] = ((u_int)lba >> 16) & 0xff;
sc.cmd[4] = ((u_int)lba >> 8) & 0xff;
sc.cmd[5] = lba & 0xff;
sc.cmd[6] = ((u_int)blocks >> 16) & 0xff;
sc.cmd[7] = ((u_int)blocks >> 8) & 0xff;
sc.cmd[8] = blocks & 0xff;
sc.cmd[9] = 1 << 4;
sc.cmd[10] = 0;
sc.cmdlen = 12;
sc.databuf = (caddr_t) data;
sc.datalen = CDDA_SIZE * blocks;
sc.senselen = sizeof(sc.sense);
sc.flags = SCCMD_READ;
sc.timeout = 10000; /* 10s */
rc = ioctl(afd, SCIOCCOMMAND, &sc);
if (rc < 0 || sc.retsts != SCCMD_OK) {
if (da.read_errors < 10) {
warnx("scsi cmd failed: retsts %d status %d",
sc.retsts, sc.status);
}
da.read_errors++;
return -1;
}
return CDDA_SIZE * blocks;
}
static void
toc2msf(u_int i, u_int *m, u_int *s, u_int *f)
{
struct cd_toc_entry *ctep;
assert(i <= CD_MAX_TRACK);
ctep = &toc_buffer[i];
if (msf) {
*m = ctep->addr.msf.minute;
*s = ctep->addr.msf.second;
*f = ctep->addr.msf.frame;
} else {
lba2msf(ctep->addr.lba, m, s, f);
}
}
static int
toc2lba(u_int i)
{
struct cd_toc_entry *ctep;
assert(i > 0);
assert(i <= CD_MAX_TRACK);
ctep = &toc_buffer[i-1];
if (msf) {
return msf2lba(
(u_int)ctep->addr.msf.minute,
(u_int)ctep->addr.msf.second,
(u_int)ctep->addr.msf.frame);
} else {
return ctep->addr.lba;
}
}
static void
addmsf(u_int *m, u_int *s, u_int *f, u_int m2, u_int s2, u_int f2)
{
*f += f2;
if (*f > 75) {
*s += *f / 75;
*f %= 75;
}
*s += s2;
if (*s > 60) {
*m += *s / 60;
*s %= 60;
}
*m += m2;
}
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