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 2005 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 28 /* All Rights Reserved */ 29 30 31 #pragma ident "%Z%%M% %I% %E% SMI" 32 33 #include <sys/types.h> 34 #include <sys/param.h> 35 #include <sys/fcntl.h> 36 #include <stdio.h> 37 #include <unistd.h> 38 #include <stdarg.h> 39 #include <strings.h> 40 #include <errno.h> 41 42 #include "extern.h" 43 #include "misc.h" 44 #include "msgs.h" 45 #include <sac.h> 46 #include "structs.h" 47 48 static FILE *Lfp; /* log file */ 49 #ifdef DEBUG 50 static FILE *Dfp; /* debug file */ 51 #endif 52 53 54 /* 55 * cons_printf - emit a message to the system console 56 */ 57 58 /*PRINTFLIKE1*/ 59 static void 60 cons_printf(const char *fmt, ...) 61 { 62 char buf[MAXPATHLEN * 2]; /* enough space for msg including a path */ 63 int fd; 64 va_list ap; 65 66 va_start(ap, fmt); 67 (void) vsnprintf(buf, sizeof (buf), fmt, ap); 68 va_end(ap); 69 70 if ((fd = open("/dev/console", O_WRONLY|O_NOCTTY)) != -1) 71 (void) write(fd, buf, strlen(buf) + 1); 72 (void) close(fd); 73 } 74 75 /* 76 * openlog - open log file, sets global file pointer Lfp 77 */ 78 79 void 80 openlog() 81 { 82 if ((Lfp = fopen(LOGFILE, "a+")) == NULL) { 83 cons_printf("SAC: could not open logfile %s: %s\n", 84 LOGFILE, strerror(errno)); 85 exit(1); 86 } 87 88 /* 89 * lock logfile to indicate presence 90 */ 91 if (lockf(fileno(Lfp), F_LOCK, 0) < 0) { 92 cons_printf("SAC: could not lock logfile %s:%s\n", 93 LOGFILE, strerror(errno)); 94 exit(1); 95 } 96 } 97 98 99 /* 100 * log - put a message into the log file 101 * 102 * args: msg - message to be logged 103 */ 104 void 105 log(char *msg) 106 { 107 char *timestamp; /* current time in readable form */ 108 time_t clock; /* current time in seconds */ 109 char buf[SIZE]; /* scratch buffer */ 110 111 (void) time(&clock); 112 timestamp = ctime(&clock); 113 *(strchr(timestamp, '\n')) = '\0'; 114 (void) sprintf(buf, "%s; %ld; %s\n", timestamp, getpid(), msg); 115 (void) fprintf(Lfp, buf); 116 (void) fflush(Lfp); 117 } 118 119 120 /* 121 * error - put an error message into the log file and exit if indicated 122 * 123 * args: msgid - id of message to be output 124 * action - action to be taken (EXIT or not) 125 */ 126 127 128 void 129 error(int msgid, int action) 130 { 131 if (msgid < 0 || msgid > N_msgs) 132 return; 133 log(Msgs[msgid].e_str); 134 if (action == EXIT) { 135 log("*** SAC exiting ***"); 136 exit(Msgs[msgid].e_exitcode); 137 } 138 } 139 140 141 #ifdef DEBUG 142 143 /* 144 * opendebug - open debugging file, sets global file pointer Dfp 145 */ 146 147 148 void 149 opendebug() 150 { 151 FILE *fp; /* scratch file pointer for problems */ 152 153 if ((Dfp = fopen(DBGFILE, "a+")) == NULL) { 154 cons_printf("SAC: could not open debugfile %s: %s\n", 155 DBGFILE, strerror(errno)); 156 exit(1); 157 } 158 } 159 160 161 /* 162 * debug - put a message into debug file 163 * 164 * args: msg - message to be output 165 */ 166 167 168 void 169 debug(char *msg) 170 { 171 char *timestamp; /* current time in readable form */ 172 time_t clock; /* current time in seconds */ 173 char buf[SIZE]; /* scratch buffer */ 174 175 (void) time(&clock); 176 timestamp = ctime(&clock); 177 *(strchr(timestamp, '\n')) = '\0'; 178 (void) sprintf(buf, "%s; %ld; %s\n", timestamp, getpid(), msg); 179 (void) fprintf(Dfp, buf); 180 (void) fflush(Dfp); 181 } 182 183 #endif /* DEBUG */ 184