1 /*
2 * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
3 * Use is subject to license terms.
4 */
5
6 #pragma ident "%Z%%M% %I% %E% SMI"
7
8 #include <stdio.h>
9 #include <stdlib.h>
10 #include <sys/types.h>
11 #include <sys/stat.h>
12 #include <nl_types.h>
13 #include <limits.h>
14 #include <stdarg.h>
15 #include <string.h>
16
17 #include <syslog.h>
18 #include <portable.h>
19 /* #include <lthread.h> */
20 #include <pthread.h>
21 #include <thread.h>
22
23 #include "log.h"
24
25 #define LDAP_DEBUG_ANY 0xffff
26
27 static pthread_mutex_t log_mutex;
28 static char logfile[PATH_MAX] =
29 "/var/opt/SUNWconn/ldap/log/slapd.log";
30 static int logsize = 512000;
31 static int logtime = 1;
32 static FILE *logfd = NULL;
33 static int syslogopen = 0;
34 pthread_mutex_t systime_mutex;
35 nl_catd sundscat;
36 static int log_debug = LDAP_DEBUG_STATS;
37
38 typedef struct _logctx {
39 char *logfile;
40 int syslogopen;
41 int logsize;
42 pthread_mutex_t log_mutex;
43 int log_debug;
44 int log_syslog;
45
46 } LogCtx;
47
48 void
ldaplogconfig(char * logf,int size)49 ldaplogconfig(char *logf, int size)
50 {
51 strcpy(logfile, logf);
52 logsize = size * 1024;
53 }
54
55 void
ldaplogconfigf(FILE * fd)56 ldaplogconfigf(FILE *fd)
57 {
58 logfd = fd;
59 logsize = 0;
60 }
61
62 void
ldaploginit(char * name,int facility)63 ldaploginit(char *name, int facility)
64 {
65 openlog(name, OPENLOG_OPTIONS, facility);
66 syslogopen = 1;
67 pthread_mutex_init(&log_mutex, NULL);
68 }
69
70 void
ldaploginitlevel(char * name,int facility,int level)71 ldaploginitlevel(char *name, int facility, int level)
72 {
73 ldaploginit(name, facility);
74 log_debug = level;
75 }
76
77 LogCtx *
sundsloginit(char * name,int facility,int debug_level,int syslog_level)78 sundsloginit(char *name, int facility, int debug_level, int syslog_level)
79 {
80 LogCtx *returnCtx = NULL;
81
82 if ((returnCtx = (LogCtx *)malloc(sizeof (LogCtx))) == NULL)
83 return (NULL);
84 if ((returnCtx->logfile = strdup(name)) == NULL) {
85 free(returnCtx);
86 return (NULL);
87 }
88 openlog(returnCtx->logfile, OPENLOG_OPTIONS, facility);
89 returnCtx->syslogopen = 1;
90 pthread_mutex_init(&(returnCtx->log_mutex), NULL);
91 returnCtx->log_debug = debug_level;
92 returnCtx->log_syslog = syslog_level;
93 return (returnCtx);
94 }
95
96 static char timestr[128];
97 static time_t timelast = 0;
98
99 /*VARARGS*/
100 void
ldaplog(int level,char * fmt,...)101 ldaplog(int level, char *fmt, ...)
102 {
103 va_list ap;
104 struct stat statbuf = {0};
105 char newlog1[PATH_MAX];
106 char newlog2[PATH_MAX];
107 time_t now;
108 int i;
109
110 if (!(log_debug & level))
111 return;
112
113 va_start(ap, fmt);
114
115 if (level == LDAP_DEBUG_ANY) {
116 /*
117 * this message is probably an error message, send it to syslog
118 */
119 if (syslogopen) {
120 vsyslog(LOG_ERR, fmt, ap);
121 } /* end if */
122 /* and sent it also on stderr */
123 vfprintf(stderr, fmt, ap);
124 } /* end if */
125
126 /*
127 * check that the log file is not already too big
128 */
129 pthread_mutex_lock(&log_mutex);
130 if ((logsize > 0) && (stat(logfile, &statbuf) == 0 &&
131 statbuf.st_size > logsize)) {
132 for (i = 9; i > 1; i--) {
133 (void) sprintf(newlog1, "%s.%d", logfile, i-1);
134 (void) sprintf(newlog2, "%s.%d", logfile, i);
135 (void) rename(newlog1, newlog2);
136 } /* end for */
137 if (logfd) {
138 fclose(logfd);
139 logfd = NULL;
140 } /* end if */
141 (void) rename(logfile, newlog1);
142 } /* end if */
143 /*
144 * send the message into a regular log file
145 */
146 if (!logfd) {
147 logfd = fopen(logfile, "aF");
148 } /* end if */
149 /*
150 * finally write the message into the log file
151 */
152 if (logfd) {
153 if (logtime) {
154 time(&now);
155 if (now-timelast > 60) {
156 pthread_mutex_lock(&systime_mutex);
157 timelast = now;
158 ctime_r(&now, timestr, 128);
159 pthread_mutex_unlock(&systime_mutex);
160 } /* end if */
161 fprintf(logfd, "%.16s : ", timestr);
162 } /* end if */
163 vfprintf(logfd, fmt, ap);
164 fflush(logfd);
165 } /* end if */
166 pthread_mutex_unlock(&log_mutex);
167 va_end(ap);
168 }
169