git.sur5r.net Git - openldap/blob - servers/slapd/slapi/printmsg.c

   1 /*
   2  * Copyright 1998-2003 The OpenLDAP Foundation, All Rights Reserved.
   3  * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
   4  */
   5 /*
   6  * (C) Copyright IBM Corp. 1997,2002
   7  * Redistribution and use in source and binary forms are permitted
   8  * provided that this notice is preserved and that due credit is
   9  * given to IBM Corporation. This software is provided ``as is''
  10  * without express or implied warranty.
  11  */
  12
  13 #include <portable.h>
  14 #include <slapi_common.h>
  15 #include <stdio.h>
  16 #include <string.h>
  17 #include <stdarg.h>
  18 #include <unistd.h>
  19 #include <fcntl.h>
  20 #include <errno.h>
  21
  22 #include <ldap.h>
  23 #include <ldap_config.h>
  24 #include <slap.h>
  25 #include <slapi.h>
  26
  27 #include <ldap_pvt_thread.h>
  28
  29 /* Single threads access to routine */
  30 ldap_pvt_thread_mutex_t slapi_printmessage_mutex;
  31 char                    *slapi_log_file = NULL;
  32 int                     slapi_log_level = SLAPI_LOG_PLUGIN;
  33
  34 int
  35 vLogError(
  36         int             level,
  37         char            *subsystem,
  38         char            *fmt,
  39         va_list         arglist )
  40 {
  41         int             rc = 0;
  42         FILE            *fp = NULL;
  43
  44         char            timeStr[100];
  45         struct tm       *ltm;
  46         time_t          currentTime;
  47
  48         assert( subsystem != NULL );
  49         assert( fmt != NULL );
  50
  51         ldap_pvt_thread_mutex_lock( &slapi_printmessage_mutex ) ;
  52
  53         /* for now, we log all severities */
  54         if ( level <= slapi_log_level ) {
  55                 fp = fopen( slapi_log_file, "a" );
  56                 if ( fp == NULL) {
  57                         rc = -1;
  58                         goto done;
  59                 }
  60
  61                 /*
  62                  * FIXME: could block
  63                  */
  64                 while ( lockf( fileno( fp ), F_LOCK, 0 ) != 0 ) {
  65                         /* DO NOTHING */ ;
  66                 }
  67
  68                 time( &currentTime );
  69                 ltm = localtime( &currentTime );
  70                 strftime( timeStr, sizeof(timeStr), "%x %X", ltm );
  71                 fputs( timeStr, fp );
  72
  73                 fprintf( fp, " %s: ", subsystem );
  74                 vfprintf( fp, fmt, arglist );
  75                 if ( fmt[ strlen( fmt ) - 1 ] != '\n' ) {
  76                         fputs( "\n", fp );
  77                 }
  78                 fflush( fp );
  79
  80                 lockf( fileno( fp ), F_ULOCK, 0 );
  81
  82                 fclose( fp );
  83
  84         } else {
  85                 rc = -1;
  86         }
  87
  88 done:
  89         ldap_pvt_thread_mutex_unlock( &slapi_printmessage_mutex );
  90
  91         return rc;
  92 }