OpenSolaris_b135/cmd/ttymon/tmglobal.c

/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */
/*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
/*	  All Rights Reserved  	*/

#include <stdio.h>
#include <poll.h>
#include <signal.h>
#include <sys/resource.h>
#include <sac.h>
#include "tmstruct.h"
#include "ttymon.h"

/*
 *	global fd and fp
 */
FILE	*Logfp = NULL;		/* for log file			*/
int	Lckfd;			/* for pid file			*/
int	Sfd, Pfd;		/* for sacpipe and pmpipe 	*/
int	PCpipe[2];		/* pipe between Parent & Children */
#ifdef	DEBUG
FILE	*Debugfp = NULL;	/* for debug file		*/
#endif

char	State = PM_STARTING;	/* current state			*/
char	*Istate;		/* initial state			*/
char	*Tag;			/* port monitor tag			*/
int	Maxfiles;		/* Max number of open files		*/
int	Maxfds;			/* Max no of devices ttymon can monitor */

int	Reread_flag = FALSE;	/* reread pmtab flag			*/

int	Retry;			/* retry open_device flag		*/

struct  pmtab *PMtab = NULL;	/* head pointer to pmtab linked list 	*/
int	Nentries = 0;		/* # of entries in pmtab linked list	*/

struct  Gdef Gdef[MAXDEFS];	/* array to hold entries in /etc/ttydefs */
int	Ndefs = 0;		/* highest index to Gdef that was used   */
long	Mtime = 0;		/* last modification time of ttydefs	 */

struct pollfd *Pollp;		/* ptr to an array of poll struct	*/
int	Npollfd;		/* size of the pollfd array		 */

struct Gdef DEFAULT = {		/* default terminal settings	*/
	"default",
	"9600",
	"9600 sane",
	0,
	/*
	 * next label is set to 4800 so we can start searching ttydefs.
	 * if 4800 is not in ttydefs, we will loop back to use DEFAULT
	 */
	"4800"
};

uid_t	Uucp_uid = 5;		/* owner's uid for bi-directional ports	*/
gid_t	Tty_gid = 7;		/* group id for all tty devices		*/

/*
 * Nlocked - 	number of ports that are either locked or have active
 *		sessions not under this ttymon.
 */
int	Nlocked = 0;

/* original rlimit value */
struct	rlimit	Rlimit;

/*
 * places to remember original signal dispositions and masks
 */

sigset_t	Origmask;		/* original signal mask */
struct	sigaction	Sigalrm;	/* SIGALRM */
struct	sigaction	Sigcld;		/* SIGCLD */
struct	sigaction	Sigint;		/* SIGINT */
struct	sigaction	Sigpoll;	/* SIGPOLL */
struct	sigaction	Sigquit;	/* SIGQUIT */
struct	sigaction	Sigterm;	/* SIGTERM */
#ifdef	DEBUG
struct	sigaction	Sigusr1;	/* SIGUSR1 */
struct	sigaction	Sigusr2;	/* SIGUSR2 */
#endif

struct strbuf *peek_ptr;

int Logmaxsz = 1000000; /* Log Max Size */

int Splflag = 0; /* serialize Log file manipulation */