48 lines
1.6 KiB
C
48 lines
1.6 KiB
C
/*
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* Author: Tatu Ylonen <ylo@cs.hut.fi>
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* Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
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* All rights reserved
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* Functions for allocating a pseudo-terminal and making it the controlling
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* tty.
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*
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* As far as I am concerned, the code I have written for this software
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* can be used freely for any purpose. Any derived versions of this
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* software must be clearly marked as such, and if the derived work is
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* incompatible with the protocol description in the RFC file, it must be
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* called by a name other than "ssh" or "Secure Shell".
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*/
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/* RCSID("$OpenBSD: pty.h,v 1.8 2000/09/07 20:27:52 deraadt Exp $"); */
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#ifndef PTY_H
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#define PTY_H
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/*
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* Allocates and opens a pty. Returns 0 if no pty could be allocated, or
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* nonzero if a pty was successfully allocated. On success, open file
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* descriptors for the pty and tty sides and the name of the tty side are
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* returned (the buffer must be able to hold at least 64 characters).
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*/
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int pty_allocate(int *ptyfd, int *ttyfd, char *ttyname, int ttynamelen);
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/*
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* Releases the tty. Its ownership is returned to root, and permissions to
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* 0666.
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*/
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void pty_release(const char *ttyname);
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/*
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* Makes the tty the processes controlling tty and sets it to sane modes.
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* This may need to reopen the tty to get rid of possible eavesdroppers.
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*/
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void pty_make_controlling_tty(int *ttyfd, const char *ttyname);
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/* Changes the window size associated with the pty. */
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void
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pty_change_window_size(int ptyfd, int row, int col,
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int xpixel, int ypixel);
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void pty_setowner(struct passwd *pw, const char *ttyname);
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#endif /* PTY_H */
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