int setfont_main(int argc UNUSED_PARAM, char **argv)
{
size_t len;
struct psf_header *psfhdr;
char *mapfilename;
int fd;
opt_complementary = "=1";
getopt32(argv, "m:", &mapfilename);
argv += optind;
// load font
len = 32*1024; // can't be larger
psfhdr = (struct psf_header *) xmalloc_open_zipped_read_close(*argv, &len);
fd = get_console_fd_or_die();
do_load(fd, psfhdr, len);
// load the screen map, if any
if (option_mask32 & 1) { // -m
void *map = xmalloc_open_zipped_read_close(mapfilename, &len);
if (len == E_TABSZ || len == 2*E_TABSZ) {
xioctl(fd, (len == 2*E_TABSZ) ? PIO_UNISCRNMAP : PIO_SCRNMAP, map);
}
}
return EXIT_SUCCESS;
}
int deallocvt_main(int argc UNUSED_PARAM, char **argv)
{
/* num = 0 deallocate all unused consoles */
int num = 0;
if (argv[1]) {
if (argv[2])
bb_show_usage();
num = xatou_range(argv[1], 1, 63);
}
/* double cast suppresses "cast to ptr from int of different size" */
xioctl(get_console_fd_or_die(), VT_DISALLOCATE, (void *)(ptrdiff_t)num);
return EXIT_SUCCESS;
}
int loadfont_main(int argc UNUSED_PARAM, char **argv)
{
size_t len;
unsigned char *buffer;
// no arguments allowed!
opt_complementary = "=0";
getopt32(argv, "");
/*
* We used to look at the length of the input file
* with stat(); now that we accept compressed files,
* just read the entire file.
*/
len = 32*1024; // can't be larger
buffer = xmalloc_read(STDIN_FILENO, &len);
// xmalloc_open_zipped_read_close(filename, &len);
if (!buffer)
bb_perror_msg_and_die("error reading input font");
do_load(get_console_fd_or_die(), buffer, len);
return EXIT_SUCCESS;
}
int beep_main(int argc, char **argv)
{
int speaker = get_console_fd_or_die();
unsigned tickrate_div_freq = tickrate_div_freq; /* for compiler */
unsigned length = length;
unsigned delay = delay;
unsigned rep = rep;
int c;
c = 'n';
while (c != -1) {
if (c == 'n') {
tickrate_div_freq = CLOCK_TICK_RATE / FREQ;
length = LENGTH;
delay = DELAY;
rep = REPETITIONS;
}
c = getopt(argc, argv, "f:l:d:r:n");
/* TODO: -s, -c:
* pipe stdin to stdout, but also beep after each line (-s) or char (-c)
*/
switch (c) {
case 'f':
/* TODO: what "-f 0" should do? */
tickrate_div_freq = (unsigned)CLOCK_TICK_RATE / xatou(optarg);
continue;
case 'l':
length = xatou(optarg);
continue;
case 'd':
/* TODO:
* -d N, -D N
* specify a delay of N milliseconds between repetitions.
* -d specifies that this delay should only occur between beeps,
* that is, it should not occur after the last repetition.
* -D indicates that the delay should occur after every repetition
*/
delay = xatou(optarg);
continue;
case 'r':
rep = xatou(optarg);
continue;
case 'n':
case -1:
break;
default:
bb_show_usage();
}
while (rep) {
//bb_info_msg("rep[%d] freq=%d, length=%d, delay=%d", rep, freq, length, delay);
xioctl(speaker, KIOCSOUND, (void*)(long)tickrate_div_freq);
usleep(1000 * length);
ioctl(speaker, KIOCSOUND, (void*)0);
if (--rep)
usleep(delay);
}
}
if (ENABLE_FEATURE_CLEAN_UP)
close(speaker);
return EXIT_SUCCESS;
}
