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mirror of https://git.FreeBSD.org/src.git synced 2024-12-23 11:18:54 +00:00
freebsd/include/ttyent.h
Edward Tomasz Napierala 1cde387c83 Improve missing tty handling in init(8). This removes a check that did
nothing - it was checking for ENXIO, which, with devfs, is no longer
returned - and was badly placed anyway, and replaces it with similar
one that works, and is done just before starting getty, instead of being
done when rereading ttys(5).

From the practical point of view, this makes init(8) handle disappearing
terminals (eg /dev/ttyU*) gracefully, without unneccessary getty restarts
and resulting error messages.

Reviewed by:	imp@
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D14307
2018-02-27 10:54:15 +00:00

80 lines
3.0 KiB
C

/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (c) 1989, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)ttyent.h 8.1 (Berkeley) 6/2/93
* $FreeBSD$
*/
#ifndef _TTYENT_H_
#define _TTYENT_H_
#define _PATH_TTYS "/etc/ttys"
#define _TTYS_OFF "off"
#define _TTYS_ON "on"
#define _TTYS_ONIFCONSOLE "onifconsole"
#define _TTYS_ONIFEXISTS "onifexists"
#define _TTYS_SECURE "secure"
#define _TTYS_INSECURE "insecure"
#define _TTYS_WINDOW "window"
#define _TTYS_GROUP "group"
#define _TTYS_NOGROUP "none"
#define _TTYS_DIALUP "dialup"
#define _TTYS_NETWORK "network"
struct ttyent {
char *ty_name; /* terminal device name */
char *ty_getty; /* command to execute, usually getty */
char *ty_type; /* terminal type for termcap */
#define TTY_ON 0x01 /* enable logins (start ty_getty program) */
#define TTY_SECURE 0x02 /* allow uid of 0 to login */
#define TTY_DIALUP 0x04 /* is a dialup tty */
#define TTY_NETWORK 0x08 /* is a network tty */
#define TTY_IFEXISTS 0x10 /* configured as "onifexists" */
#define TTY_IFCONSOLE 0x20 /* configured as "onifconsole" */
int ty_status; /* status flags */
char *ty_window; /* command to start up window manager */
char *ty_comment; /* comment field */
char *ty_group; /* tty group */
};
#include <sys/cdefs.h>
__BEGIN_DECLS
struct ttyent *getttyent(void);
struct ttyent *getttynam(const char *);
int setttyent(void);
int endttyent(void);
int isdialuptty(const char *);
int isnettty(const char *);
__END_DECLS
#endif /* !_TTYENT_H_ */