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 (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 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 #include <sys/types.h> 33 #include <sys/param.h> 34 #include <sys/fcntl.h> 35 #include <stdio.h> 36 #include <unistd.h> 37 #include <stdarg.h> 38 #include <strings.h> 39 #include <errno.h> 40 41 #include "extern.h" 42 #include "misc.h" 43 #include "msgs.h" 44 #include <sac.h> 45 #include "structs.h" 46 47 static FILE *Lfp; /* log file */ 48 #ifdef DEBUG 49 static FILE *Dfp; /* debug file */ 50 #endif 51 52 53 /* 54 * cons_printf - emit a message to the system console 55 */ 56 57 /*PRINTFLIKE1*/ 58 static void 59 cons_printf(const char *fmt, ...) 60 { 61 char buf[MAXPATHLEN * 2]; /* enough space for msg including a path */ 62 int fd; 63 va_list ap; 64 65 va_start(ap, fmt); 66 (void) vsnprintf(buf, sizeof (buf), fmt, ap); 67 va_end(ap); 68 69 if ((fd = open("/dev/console", O_WRONLY|O_NOCTTY)) != -1) 70 (void) write(fd, buf, strlen(buf) + 1); 71 (void) close(fd); 72 } 73 74 /* 75 * openlog - open log file, sets global file pointer Lfp 76 */ 77 78 void 79 openlog() 80 { 81 if ((Lfp = fopen(LOGFILE, "a+")) == NULL) { 82 cons_printf("SAC: could not open logfile %s: %s\n", 83 LOGFILE, strerror(errno)); 84 exit(1); 85 } 86 87 /* 88 * lock logfile to indicate presence 89 */ 90 if (lockf(fileno(Lfp), F_LOCK, 0) < 0) { 91 cons_printf("SAC: could not lock logfile %s:%s\n", 92 LOGFILE, strerror(errno)); 93 exit(1); 94 } 95 } 96 97 98 /* 99 * log - put a message into the log file 100 * 101 * args: msg - message to be logged 102 */ 103 void 104 log(char *msg) 105 { 106 char *timestamp; /* current time in readable form */ 107 time_t clock; /* current time in seconds */ 108 char buf[SIZE]; /* scratch buffer */ 109 110 (void) time(&clock); 111 timestamp = ctime(&clock); 112 *(strchr(timestamp, '\n')) = '\0'; 113 (void) snprintf(buf, sizeof (buf), "%s; %ld; %s\n", 114 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