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 2008 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #include <sys/types.h> 27 #include <sys/time.h> 28 #include <errno.h> 29 #include <stdio.h> 30 #include <string.h> 31 #include <fcntl.h> 32 #include <stdlib.h> 33 #include <unistd.h> 34 #include <values.h> 35 #include <locale.h> 36 #include <sys/stat.h> 37 #include <strings.h> 38 #include <stdarg.h> 39 #include <sys/param.h> 40 #include <sys/nsctl/nsctl.h> 41 42 #include <sys/unistat/spcs_s.h> 43 #include <sys/unistat/spcs_s_u.h> 44 #include <sys/unistat/spcs_errors.h> 45 46 #define MAX_SESSION_LOG (10 * 1024 * 1024) /* allowable log file size */ 47 48 static char sessionlog[] = "/var/adm/ds.log"; 49 static char sessionlog_bak[] = "/var/adm/ds.log.bak"; 50 51 static char *spcstime(); 52 53 void 54 spcs_log(const char *product, spcs_s_info_t *status, const char *format, ...) 55 { 56 struct stat st; 57 FILE *fp = NULL; 58 struct flock lk; 59 va_list ap; 60 61 bzero(&lk, sizeof (lk)); 62 63 /* 64 * check the file size, if > than MAX_SESSION_LOG bytes make a .bak 65 * and truncate 66 */ 67 if (stat(sessionlog, &st) == 0) { 68 if (st.st_size > MAX_SESSION_LOG) { 69 rename(sessionlog, sessionlog_bak); 70 } 71 } 72 73 va_start(ap, format); 74 if ((fp = fopen(sessionlog, "a")) == (FILE *)NULL) 75 goto fail; 76 lk.l_type = F_WRLCK; 77 lk.l_whence = SEEK_SET; 78 lk.l_start = (off_t)0; 79 lk.l_len = (off_t)0; 80 81 if (fcntl(fileno(fp), F_SETLKW, &lk) < 0) 82 goto fail; 83 84 85 fprintf(fp, "%s %s: ", spcstime(), product); 86 (void) vfprintf(fp, format, ap); 87 fputs("\n", fp); 88 if (status) 89 spcs_s_report(*status, fp); 90 91 fflush(fp); 92 93 lk.l_type = F_UNLCK; 94 95 (void) fcntl(fileno(fp), F_SETLKW, &lk); 96 97 fail: 98 if (fp) 99 fclose(fp); 100 va_end(ap); 101 } 102 103 /* 104 * spcstime(): gets current time 105 */ 106 static char * 107 spcstime() 108 { 109 static char timeptr[20]; 110 time_t tnow; 111 112 tnow = time((time_t *)0); 113 cftime(timeptr, "%b %d %T", &tnow); 114 return (timeptr); 115 } 116