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Annotation of src/usr.bin/ssh/sshpty.h, Revision 1.1.2.1

1.1       djm         1: /*
                      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.
                      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".
                     13:  */
                     14:
1.1.2.1 ! jason      15: /* RCSID("$OpenBSD: sshpty.h,v 1.1 2001/03/04 01:46:30 djm Exp $"); */
1.1       djm        16:
                     17: #ifndef SSHPTY_H
                     18: #define SSHPTY_H
                     19:
                     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:  */
                     26: int     pty_allocate(int *ptyfd, int *ttyfd, char *ttyname, int ttynamelen);
                     27:
                     28: /*
                     29:  * Releases the tty.  Its ownership is returned to root, and permissions to
                     30:  * 0666.
                     31:  */
                     32: void    pty_release(const char *ttyname);
                     33:
                     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:  */
                     38: void    pty_make_controlling_tty(int *ttyfd, const char *ttyname);
                     39:
                     40: /* Changes the window size associated with the pty. */
                     41: void
                     42: pty_change_window_size(int ptyfd, int row, int col,
                     43:     int xpixel, int ypixel);
                     44:
                     45: void   pty_setowner(struct passwd *pw, const char *ttyname);
                     46:
                     47: #endif                         /* SSHPTY_H */