unsigned char read_char(int sft_idx, BOOL check_break)
{
unsigned char c;
struct dhdr FAR *dev = sft_to_dev(idx_to_sft(sft_idx));
if (dev)
return (unsigned char)raw_get_char(&dev, check_break);
DosRWSft(sft_idx, 1, &c, XFR_READ);
return c;
}
void handle_break(struct dhdr FAR **pdev, int sft_out)
{
char *buf = "^C\r\n";
CB_FLG &= ~CB_MSK; /* reset the ^Break flag */
con_flush(pdev);
if (sft_out == -1)
cooked_write(pdev, 4, buf);
else
DosRWSft(sft_out, 4, buf, XFR_FORCE_WRITE);
if (!ErrorMode) /* within int21_handler, InDOS is not incremented */
if (InDOS)
--InDOS; /* fail-safe */
spawn_int23(); /* invoke user INT-23 and never come back */
}
/* writes character for disk file or device */
void write_char(int c, int sft_idx)
{
unsigned char ch = (unsigned char)c;
DosRWSft(sft_idx, 1, &ch, XFR_FORCE_WRITE);
}
