1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 27 /* All Rights Reserved */ 28 29 30 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 33 34 #include <stdio.h> 35 #include <poll.h> 36 #include <signal.h> 37 #include <sys/resource.h> 38 #include <sac.h> 39 #include "tmstruct.h" 40 #include "ttymon.h" 41 42 /* 43 * global fd and fp 44 */ 45 FILE *Logfp = NULL; /* for log file */ 46 int Lckfd; /* for pid file */ 47 int Sfd, Pfd; /* for sacpipe and pmpipe */ 48 int PCpipe[2]; /* pipe between Parent & Children */ 49 #ifdef DEBUG 50 FILE *Debugfp = NULL; /* for debug file */ 51 #endif 52 53 char State = PM_STARTING; /* current state */ 54 char *Istate; /* initial state */ 55 char *Tag; /* port monitor tag */ 56 int Maxfiles; /* Max number of open files */ 57 int Maxfds; /* Max no of devices ttymon can monitor */ 58 59 int Reread_flag = FALSE; /* reread pmtab flag */ 60 61 int Retry; /* retry open_device flag */ 62 63 struct pmtab *PMtab = NULL; /* head pointer to pmtab linked list */ 64 int Nentries = 0; /* # of entries in pmtab linked list */ 65 66 struct Gdef Gdef[MAXDEFS]; /* array to hold entries in /etc/ttydefs */ 67 int Ndefs = 0; /* highest index to Gdef that was used */ 68 long Mtime = 0; /* last modification time of ttydefs */ 69 70 struct pollfd *Pollp; /* ptr to an array of poll struct */ 71 int Npollfd; /* size of the pollfd array */ 72 73 struct Gdef DEFAULT = { /* default terminal settings */ 74 "default", 75 "9600", 76 "9600 sane", 77 0, 78 /* 79 * next label is set to 4800 so we can start searching ttydefs. 80 * if 4800 is not in ttydefs, we will loop back to use DEFAULT 81 */ 82 "4800" 83 }; 84 85 uid_t Uucp_uid = 5; /* owner's uid for bi-directional ports */ 86 gid_t Tty_gid = 7; /* group id for all tty devices */ 87 88 /* 89 * Nlocked - number of ports that are either locked or have active 90 * sessions not under this ttymon. 91 */ 92 int Nlocked = 0; 93 94 /* original rlimit value */ 95 struct rlimit Rlimit; 96 97 /* 98 * places to remember original signal dispositions and masks 99 */ 100 101 sigset_t Origmask; /* original signal mask */ 102 struct sigaction Sigalrm; /* SIGALRM */ 103 struct sigaction Sigcld; /* SIGCLD */ 104 struct sigaction Sigint; /* SIGINT */ 105 struct sigaction Sigpoll; /* SIGPOLL */ 106 struct sigaction Sigterm; /* SIGTERM */ 107 #ifdef DEBUG 108 struct sigaction Sigusr1; /* SIGUSR1 */ 109 struct sigaction Sigusr2; /* SIGUSR2 */ 110 #endif 111 112 struct strbuf *peek_ptr; 113 114 int Logmaxsz = 1000000; /* Log Max Size */ 115 116 int Splflag = 0; /* serialize Log file manipulation */ 117