On Wed, Jul 10, 2002 at 09:13:18PM -0700, bruno schwander wrote:
> I making a port (not much really) of Irit
> (http://www.cs.technion.ac.il/~irit/) a modelling environment.
>
> I am having some problems with terminal handling, so all termios guru out
> there, please help ! :-)
>
> At stratup, irit does the following
>
> Termio.c_cc[VEOF] = 0; /* MIN = 0, no minimal length to wait for. */
> Termio.c_cc[VEOL] = 1; /* TIME - 1 tenth of a second as time o
>
> which seems wrong, I think it should be
>
> Termio.c_cc[VMIN] = 0; /* MIN = 0, no minimal length to wait for. */
> Termio.c_cc[VTIME] = 1; /* TIME - 1 tenth of a second as time o
VMIN == VEOF and VTIME == VEOL.
> then later:
>
> Termio.c_lflag &= ~ICANON;
take a look at cfmakeraw(3) which is BSD specific, but that's
not important since it's a port *to* BSD :)
more +/cfmakeraw /usr/src/lib/libc/gen/termios.c
cfmakeraw(t)
struct termios *t;
{
t->c_iflag &=
~(IMAXBEL|IXOFF|INPCK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON|IGNPAR);
t->c_iflag |= IGNBRK;
t->c_oflag &= ~OPOST;
t->c_lflag &=
~(ECHO|ECHOE|ECHOK|ECHONL|ICANON|ISIG|IEXTEN|NOFLSH|TOSTOP|PENDIN);
t->c_cflag &= ~(CSIZE|PARENB);
t->c_cflag |= CS8|CREAD;
t->c_cc[VMIN] = 1;
t->c_cc[VTIME] = 0;
}
so, a short answer could be, as Bernd Walter suggested :
int
settty(raw)
int raw;
{
static int init;
static struct termios old;
struct termios buf, *new;
if (!init) {
if (tcgetattr(STDIN_FILENO, &old) < 0) {
printf("tcgetattr failed: %s\n", strerror(errno));
return(1);
}
init++;
}
if (raw) {
if (init < 2) {
cfmakeraw(&buf);
init++;
}
new = buf;
} else
new = old;
if (tcsetattr(STDIN_FILENO, TCSAFLUSH, &new) < 0) {
printf("tcsetattr failed: %s\n", strerror(errno));
return(1);
}
return(0);
}
Cyrille.
--
Cyrille Lefevre mailto:[EMAIL PROTECTED]
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