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 <stdio.h>
  15 #include <ac/string.h>
  16 #include <ac/stdarg.h>
  17 #include <ac/unistd.h>
  18 #include <fcntl.h>
  19 #include <ac/errno.h>
  20
  21 #include <ldap.h>
  22 #include <ldap_config.h>
  23 #include <slap.h>
  24 #include <slapi.h>
  25
  26 #include <ldap_pvt_thread.h>
  27
  28 /* Single threads access to routine */
  29 ldap_pvt_thread_mutex_t slapi_printmessage_mutex;
  30 char                    *slapi_log_file = NULL;
  31 int                     slapi_log_level = SLAPI_LOG_PLUGIN;
  32
  33 int
  34 vLogError(
  35         int             level,
  36         char            *subsystem,
  37         char            *fmt,
  38         va_list         arglist )
  39 {
  40         int             rc = 0;
  41         FILE            *fp = NULL;
  42
  43         char            timeStr[100];
  44         struct tm       *ltm;
  45         time_t          currentTime;
  46
  47         assert( subsystem != NULL );
  48         assert( fmt != NULL );
  49
  50         ldap_pvt_thread_mutex_lock( &slapi_printmessage_mutex ) ;
  51
  52         /* for now, we log all severities */
  53         if ( level <= slapi_log_level ) {
  54                 fp = fopen( slapi_log_file, "a" );
  55                 if ( fp == NULL) {
  56                         rc = -1;
  57                         goto done;
  58                 }
  59
  60                 /*
  61                  * FIXME: could block
  62                  */
  63                 while ( lockf( fileno( fp ), F_LOCK, 0 ) != 0 ) {
  64                         /* DO NOTHING */ ;
  65                 }
  66
  67                 time( &currentTime );
  68                 ltm = localtime( &currentTime );
  69                 strftime( timeStr, sizeof(timeStr), "%x %X", ltm );
  70                 fputs( timeStr, fp );
  71
  72                 fprintf( fp, " %s: ", subsystem );
  73                 vfprintf( fp, fmt, arglist );
  74                 if ( fmt[ strlen( fmt ) - 1 ] != '\n' ) {
  75                         fputs( "\n", fp );
  76                 }
  77                 fflush( fp );
  78
  79                 lockf( fileno( fp ), F_ULOCK, 0 );
  80
  81                 fclose( fp );
  82
  83         } else {
  84                 rc = -1;
  85         }
  86
  87 done:
  88         ldap_pvt_thread_mutex_unlock( &slapi_printmessage_mutex );
  89
  90         return rc;
  91 }