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Annotation of src/usr.bin/ssh/pty.h, Revision 1.6.2.3

1.1       deraadt     1: /*
1.2       deraadt     2:  * Author: Tatu Ylonen <ylo@cs.hut.fi>
                      3:  * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
                      4:  *                    All rights reserved
                      5:  * Functions for allocating a pseudo-terminal and making it the controlling
                      6:  * tty.
1.6.2.2   jason       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".
1.2       deraadt    13:  */
1.1       deraadt    14:
1.6.2.2   jason      15: /* RCSID("$OpenBSD: pty.h,v 1.8 2000/09/07 20:27:52 deraadt Exp $"); */
1.1       deraadt    16:
                     17: #ifndef PTY_H
                     18: #define PTY_H
                     19:
1.3       markus     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:  */
1.4       deraadt    26: int     pty_allocate(int *ptyfd, int *ttyfd, char *ttyname, int ttynamelen);
1.1       deraadt    27:
1.3       markus     28: /*
                     29:  * Releases the tty.  Its ownership is returned to root, and permissions to
                     30:  * 0666.
                     31:  */
1.2       deraadt    32: void    pty_release(const char *ttyname);
1.1       deraadt    33:
1.3       markus     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:  */
1.2       deraadt    38: void    pty_make_controlling_tty(int *ttyfd, const char *ttyname);
1.1       deraadt    39:
                     40: /* Changes the window size associated with the pty. */
1.6       markus     41: void
1.2       deraadt    42: pty_change_window_size(int ptyfd, int row, int col,
                     43:     int xpixel, int ypixel);
1.5       markus     44:
                     45: void   pty_setowner(struct passwd *pw, const char *ttyname);
1.1       deraadt    46:
1.2       deraadt    47: #endif                         /* PTY_H */