int
main(int argc, char **argv)
{
const char *arg;
int percent;
int i;
bell_setting = 0;
if (argc < 2)
usage();
for (i = 1; i < argc; ) {
arg = argv[i++];
if (strcmp(arg, "-b") == 0) {
/* turn off bell */
set_bell_vol(0);
} else if (strcmp(arg, "b") == 0) {
/* set bell to default */
percent = DEFAULT;
if (i >= argc) {
/* set bell to default */
set_bell_vol(percent);
/* set pitch to default */
set_bell_pitch(percent);
/* set duration to default */
set_bell_dur(percent);
break;
}
arg = nextarg(i, argv);
if (strcmp(arg, "on") == 0) {
/*
* let it stay that way
*/
/* set bell on */
set_bell_vol(BELL_VOLUME);
/* set pitch to default */
set_bell_pitch(BELL_PITCH);
/* set duration to default */
set_bell_dur(BELL_DURATION);
i++;
} else if (strcmp(arg, "off") == 0) {
/* turn the bell off */
percent = 0;
set_bell_vol(percent);
i++;
} else if (is_number(arg, MAXBVOLUME)) {
/*
* If volume is given
*/
/* set bell appropriately */
percent = atoi(arg);
set_bell_vol(percent);
i++;
arg = nextarg(i, argv);
/* if pitch is given */
if (is_number(arg, MAXBPITCH)) {
/* set the bell */
set_bell_pitch(atoi(arg));
i++;
arg = nextarg(i, argv);
/* If duration is given */
if (is_number(arg, MAXBTIME)) {
/* set the bell */
set_bell_dur(atoi(arg));
i++;
}
}
} else {
/* set bell to default */
set_bell_vol(BELL_VOLUME);
}
} else if (strcmp(arg, "v") == 0) {
/*
* set voice parameter
*/
if (i >= argc) {
arg = "default";
} else {
arg = nextarg(i, argv);
}
set_voice_param(arg, 1);
i++;
} else if (strcmp(arg, "-v") == 0) {
/*
* set voice parameter
*/
if (i >= argc) {
warnx("Missing -v argument");
usage();
}
arg = nextarg(i, argv);
set_voice_param(arg, 0);
i++;
} else {
warnx("Unknown option %s", arg);
usage();
}
}
if (bell_setting)
set_bell_param();
exit(0);
}
static int
is_number(const char *arg, int maximum)
{
const char *p;
if (arg[0] == '-' && arg[1] == '1' && arg[2] == '\0')
return 1;
for (p = arg; isdigit((unsigned char)*p); p++)
;
if (*p || atoi(arg) > maximum)
return 0;
static void
set_voice_param(const char *path, int flag)
{
int fd;
if (flag) {
memcpy(&voice, &bell_voice, sizeof(bell_voice));
} else {
if ((fd = open(path, 0)) >= 0) {
if (read(fd, &voice, sizeof(voice)) != sizeof(voice))
err(1, "cannot read voice parameter");
close(fd);
} else {
err(1, "cannot open voice parameter");
}
}
if ((fd = open("/dev/bell", O_RDWR)) < 0)
err(1, "cannot open /dev/bell");
if (ioctl(fd, BELLIOCSVOICE, &voice))
err(1, "ioctl BELLIOCSVOICE failed");
close(fd);
}
static void
set_bell_param(void)
{
int fd;
struct bell_info param;
if ((fd = open("/dev/bell", O_RDWR)) < 0)
err(1, "cannot open /dev/bell");
if (ioctl(fd, BELLIOCGPARAM, ¶m))
err(1, "ioctl BELLIOCGPARAM failed");
if (values.volume == DEFAULT)
values.volume = param.volume;
if (values.pitch == DEFAULT)
values.pitch = param.pitch;
if (values.msec == DEFAULT)
values.msec = param.msec;
if (ioctl(fd, BELLIOCSPARAM, &values))
err(1, "ioctl BELLIOCSPARAM failed");
close(fd);
}
static void
usage(void)
{
fprintf(stderr, "Usage: %s option ...\n", getprogname());
fprintf(stderr, " To turn bell off:\n");
fprintf(stderr, "\t-b b off"
" b 0\n");
fprintf(stderr, " To set bell volume, pitch and duration:\n");
fprintf(stderr, "\t b [vol [pitch [dur]]] b on\n");
fprintf(stderr, " To restore default voice parameter:\n");
fprintf(stderr, "\t v default\n");
fprintf(stderr, " To set voice parameter:\n");
fprintf(stderr, "\t-v voicefile\n");
exit(0);
}