| #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 *m, int *s, char *name, const struct termios *tio, const struct winsize *ws) |
| { |
| int n=0; |
| char buf[20]; |
| |
| *m = open("/dev/ptmx", O_RDWR|O_NOCTTY); |
| if (!*m) 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); |
| |
| return 0; |
| } |