The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/sys/pty.h

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    1 /*      $NetBSD: pty.h,v 1.11 2014/10/15 15:00:03 christos Exp $        */
    2 
    3 /*-
    4  * Copyright (c) 2004 The NetBSD Foundation, Inc.
    5  * All rights reserved.
    6  *
    7  * This code is derived from software contributed to The NetBSD Foundation
    8  * by Christos Zoulas.
    9  *
   10  * Redistribution and use in source and binary forms, with or without
   11  * modification, are permitted provided that the following conditions
   12  * are met:
   13  * 1. Redistributions of source code must retain the above copyright
   14  *    notice, this list of conditions and the following disclaimer.
   15  * 2. Redistributions in binary form must reproduce the above copyright
   16  *    notice, this list of conditions and the following disclaimer in the
   17  *    documentation and/or other materials provided with the distribution.
   18  *
   19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
   20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
   21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
   23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   29  * POSSIBILITY OF SUCH DAMAGE.
   30  */
   31 #ifndef _SYS_PTY_H_
   32 #define _SYS_PTY_H_
   33 
   34 int pty_isfree(int, int);
   35 int pty_check(int);
   36 
   37 #ifndef NO_DEV_PTM
   38 void ptmattach(int);
   39 int pty_fill_ptmget(struct lwp *, dev_t, int, int, void *, struct mount *);
   40 int pty_grant_slave(struct lwp *, dev_t, struct mount *);
   41 dev_t pty_makedev(char, int);
   42 struct ptm_pty *pty_sethandler(struct ptm_pty *);
   43 int pty_getmp(struct lwp *, struct mount **);
   44 
   45 /*
   46  * Ptm_pty is used for switch ptm{x} driver between BSDPTY, PTYFS.
   47  * Functions' argument (struct mount *) is used only PTYFS,
   48  * in the case BSDPTY can be NULL.
   49  */
   50 struct ptm_pty {
   51         int (*allocvp)(struct mount *, struct lwp *, struct vnode **, dev_t,
   52             char);
   53         int (*makename)(struct mount *, struct lwp *, char *, size_t, dev_t, char);
   54         void (*getvattr)(struct mount *, struct lwp *, struct vattr *);
   55         int (*getmp)(struct lwp *, struct mount **);
   56 };
   57 
   58 #ifdef COMPAT_BSDPTY
   59 extern struct ptm_pty ptm_bsdpty;
   60 #endif
   61 
   62 #endif /* NO_DEV_PTM */
   63 
   64 extern int npty;
   65 
   66 #endif /* _SYS_PTY_H_ */

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