38 lines
536 B
C
38 lines
536 B
C
/* $Source$
|
|
* $State$
|
|
* $Revision$
|
|
*/
|
|
|
|
#include <stdlib.h>
|
|
#include <errno.h>
|
|
#include <unistd.h>
|
|
#include <cpm.h>
|
|
|
|
int read(int fd, void* buffer, size_t count)
|
|
{
|
|
char i;
|
|
|
|
/* We're only allowed to read from fd 0, 1 or 2. */
|
|
|
|
if ((fd < 0) || (fd > 2))
|
|
{
|
|
errno = EBADF;
|
|
return -1;
|
|
}
|
|
|
|
/* Empty buffer? */
|
|
|
|
if (count == 0)
|
|
return 0;
|
|
|
|
/* Read one byte. */
|
|
|
|
cpm_bc_register = CPM_BDOS_CONSOLE_INPUT;
|
|
cpm_bdos();
|
|
|
|
if (cpm_a_register == '\r')
|
|
cpm_a_register = '\n';
|
|
*(char*)buffer = cpm_a_register;
|
|
|
|
return 1;
|
|
}
|