scsh-0.5/scsh/tty1.c

61 lines
1.6 KiB
C

/* To do:
* - Replace explicit 8/24 splits with macros.
*/
/*
* Scheme48/scsh terminal control interface.
* Routines that require custom C support.
* Copyright (c) 1995 by Brian D. Carlstrom
*/
#include <termios.h>
#include <string.h>
int scheme_tcgetattr(int fd, char control_chars[NCCS],
int *iflag_hi8, int *iflag_lo24,
int *oflag_hi8, int *oflag_lo24,
int *cflag_hi8, int *cflag_lo24,
int *lflag_hi8, int *lflag_lo24,
int *ispeed, int *ospeed)
{
struct termios t;
int result = tcgetattr(fd, &t);
if (result != -1) {
memcpy(control_chars, t.c_cc, NCCS);
*iflag_hi8 =t.c_iflag >> 24; *iflag_lo24=t.c_iflag & 0xffffff;
*oflag_hi8 =t.c_oflag >> 24; *oflag_lo24=t.c_oflag & 0xffffff;
*cflag_hi8 =t.c_cflag >> 24; *cflag_lo24=t.c_cflag & 0xffffff;
*lflag_hi8 =t.c_lflag >> 24; *lflag_lo24=t.c_lflag & 0xffffff;
*ispeed=cfgetispeed(&t);
*ospeed=cfgetospeed(&t);
}
return result;
}
int scheme_tcsetattr(int fd, int option,
char *control_chars,
int iflag_hi8, int iflag_lo24,
int oflag_hi8, int oflag_lo24,
int cflag_hi8, int cflag_lo24,
int lflag_hi8, int lflag_lo24,
int ispeed, int ospeed,
int min, int time)
{
struct termios t;
memcpy(t.c_cc, control_chars, NCCS);
t.c_cc[VMIN] = min;
t.c_cc[VTIME] = time;
t.c_iflag = (iflag_hi8 << 24) | iflag_lo24;
t.c_oflag = (oflag_hi8 << 24) | oflag_lo24;
t.c_cflag = (cflag_hi8 << 24) | cflag_lo24;
t.c_lflag = (lflag_hi8 << 24) | lflag_lo24;
cfsetispeed(&t, ispeed);
cfsetospeed(&t, ospeed);
return tcsetattr(fd, option, &t);
}