| /* |
| * Author: Tatu Ylonen <ylo@cs.hut.fi> |
| * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland |
| * All rights reserved |
| * Functions for allocating a pseudo-terminal and making it the controlling |
| * tty. |
| * |
| * As far as I am concerned, the code I have written for this software |
| * can be used freely for any purpose. Any derived versions of this |
| * software must be clearly marked as such, and if the derived work is |
| * incompatible with the protocol description in the RFC file, it must be |
| * called by a name other than "ssh" or "Secure Shell". |
| */ |
| |
| /* RCSID("$OpenBSD: sshpty.h,v 1.1 2001/03/04 01:46:30 djm Exp $"); */ |
| |
| #ifndef PTY_H |
| #define PTY_H |
| |
| /* |
| * Allocates and opens a pty. Returns 0 if no pty could be allocated, or |
| * nonzero if a pty was successfully allocated. On success, open file |
| * descriptors for the pty and tty sides and the name of the tty side are |
| * returned (the buffer must be able to hold at least 64 characters). |
| */ |
| int pty_allocate(int *ptyfd, int *ttyfd, char *ttyname, int ttynamelen); |
| |
| /* |
| * Releases the tty. Its ownership is returned to root, and permissions to |
| * 0666. |
| */ |
| void pty_release(const char *ttyname); |
| |
| /* |
| * Makes the tty the processes controlling tty and sets it to sane modes. |
| * This may need to reopen the tty to get rid of possible eavesdroppers. |
| */ |
| void pty_make_controlling_tty(int *ttyfd, const char *ttyname); |
| |
| /* Changes the window size associated with the pty. */ |
| void |
| pty_change_window_size(int ptyfd, int row, int col, |
| int xpixel, int ypixel); |
| |
| void pty_setowner(struct passwd *pw, const char *ttyname); |
| |
| #endif /* PTY_H */ |
