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8efc0c15 | 1 | /* |
5260325f | 2 | * Author: Tatu Ylonen <ylo@cs.hut.fi> |
5260325f | 3 | * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland |
4 | * All rights reserved | |
5260325f | 5 | * Functions for allocating a pseudo-terminal and making it the controlling |
6 | * tty. | |
bcbf86ec | 7 | * |
8 | * As far as I am concerned, the code I have written for this software | |
9 | * can be used freely for any purpose. Any derived versions of this | |
10 | * software must be clearly marked as such, and if the derived work is | |
11 | * incompatible with the protocol description in the RFC file, it must be | |
12 | * called by a name other than "ssh" or "Secure Shell". | |
5260325f | 13 | */ |
8efc0c15 | 14 | |
bcbf86ec | 15 | /* RCSID("$OpenBSD: pty.h,v 1.8 2000/09/07 20:27:52 deraadt Exp $"); */ |
8efc0c15 | 16 | |
17 | #ifndef PTY_H | |
18 | #define PTY_H | |
19 | ||
aa3378df | 20 | /* |
21 | * Allocates and opens a pty. Returns 0 if no pty could be allocated, or | |
22 | * nonzero if a pty was successfully allocated. On success, open file | |
23 | * descriptors for the pty and tty sides and the name of the tty side are | |
24 | * returned (the buffer must be able to hold at least 64 characters). | |
25 | */ | |
a408af76 | 26 | int pty_allocate(int *ptyfd, int *ttyfd, char *ttyname, int ttynamelen); |
8efc0c15 | 27 | |
aa3378df | 28 | /* |
29 | * Releases the tty. Its ownership is returned to root, and permissions to | |
30 | * 0666. | |
31 | */ | |
5260325f | 32 | void pty_release(const char *ttyname); |
8efc0c15 | 33 | |
aa3378df | 34 | /* |
35 | * Makes the tty the processes controlling tty and sets it to sane modes. | |
36 | * This may need to reopen the tty to get rid of possible eavesdroppers. | |
37 | */ | |
5260325f | 38 | void pty_make_controlling_tty(int *ttyfd, const char *ttyname); |
8efc0c15 | 39 | |
40 | /* Changes the window size associated with the pty. */ | |
6ae2364d | 41 | void |
5260325f | 42 | pty_change_window_size(int ptyfd, int row, int col, |
43 | int xpixel, int ypixel); | |
8efc0c15 | 44 | |
817175bc | 45 | void pty_setowner(struct passwd *pw, const char *ttyname); |
46 | ||
5260325f | 47 | #endif /* PTY_H */ |