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
spcs_log(const char * product,spcs_s_info_t * status,const char * format,...)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 *
spcstime()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