#include <stdlib.h>
#include <fcntl.h>
#include <unistd.h>
#include <pty.h>
#include <stdio.h>
/* Nonstandard, but vastly superior to the standard functions */
int openpty(int *pm, int *ps, char *name, const struct termios *tio, const struct winsize *ws)
{
int m, s, n=0;
char buf[20];
m = open("/dev/ptmx", O_RDWR|O_NOCTTY);
if (m < 0) return -1;
if (ioctl(m, TIOCSPTLCK, &n) || ioctl (m, TIOCGPTN, &n)) {
close(m);
return -1;
}
if (!name) name = buf;
snprintf(name, sizeof buf, "/dev/pts/%d", n);
if ((s = open(name, O_RDWR|O_NOCTTY)) < 0) {
close(m);
return -1;
}
if (tio) tcsetattr(s, TCSANOW, tio);
if (ws) ioctl(s, TIOCSWINSZ, ws);
*pm = m;
*ps = s;
return 0;
}