external/bsd/openldap/dist/servers/slapd/slapi/printmsg.c

   1 /* $OpenLDAP: pkg/ldap/servers/slapd/slapi/printmsg.c,v 1.15.2.3 2008/02/11 23:26:49 kurt Exp $ */
   2 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   3  *
   4  * Copyright 2002-2008 The OpenLDAP Foundation.
   5  * Portions Copyright 1997,2002-2003 IBM Corporation.
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted only as authorized by the OpenLDAP
  10  * Public License.
  11  *
  12  * A copy of this license is available in the file LICENSE in the
  13  * top-level directory of the distribution or, alternatively, at
  14  * <http://www.OpenLDAP.org/license.html>.
  15  */
  16 /* ACKNOWLEDGEMENTS:
  17  * This work was initially developed by IBM Corporation for use in
  18  * IBM products and subsequently ported to OpenLDAP Software by
  19  * Steve Omrani.
  20  */
  21
  22 #include <portable.h>
  23 #include <stdio.h>
  24 #include <ac/string.h>
  25 #include <ac/stdarg.h>
  26 #include <ac/unistd.h>
  27 #include <fcntl.h>
  28 #include <ac/errno.h>
  29
  30 #include <ldap.h>
  31 #include <ldap_config.h>
  32 #include <slap.h>
  33 #include <slapi.h>
  34
  35 #include <ldap_pvt_thread.h>
  36
  37 /* Single threads access to routine */
  38 ldap_pvt_thread_mutex_t slapi_printmessage_mutex;
  39 char                    *slapi_log_file = NULL;
  40 int                     slapi_log_level = SLAPI_LOG_PLUGIN;
  41
  42 int
  43 slapi_int_log_error(
  44         int             level,
  45         char            *subsystem,
  46         char            *fmt,
  47         va_list         arglist )
  48 {
  49         int             rc = 0;
  50         FILE            *fp = NULL;
  51
  52         char            timeStr[100];
  53         struct tm       *ltm;
  54         time_t          currentTime;
  55
  56         assert( subsystem != NULL );
  57         assert( fmt != NULL );
  58
  59         ldap_pvt_thread_mutex_lock( &slapi_printmessage_mutex ) ;
  60
  61         /* for now, we log all severities */
  62         if ( level <= slapi_log_level ) {
  63                 fp = fopen( slapi_log_file, "a" );
  64                 if ( fp == NULL) {
  65                         rc = -1;
  66                         goto done;
  67                 }
  68
  69                 /*
  70                  * FIXME: could block
  71                  */
  72                 while ( lockf( fileno( fp ), F_LOCK, 0 ) != 0 ) {
  73                         /* DO NOTHING */ ;
  74                 }
  75
  76                 time( &currentTime );
  77                 ltm = localtime( &currentTime );
  78                 strftime( timeStr, sizeof(timeStr), "%x %X", ltm );
  79                 fputs( timeStr, fp );
  80
  81                 fprintf( fp, " %s: ", subsystem );
  82                 vfprintf( fp, fmt, arglist );
  83                 if ( fmt[ strlen( fmt ) - 1 ] != '\n' ) {
  84                         fputs( "\n", fp );
  85                 }
  86                 fflush( fp );
  87
  88                 lockf( fileno( fp ), F_ULOCK, 0 );
  89
  90                 fclose( fp );
  91
  92         } else {
  93                 rc = -1;
  94         }
  95
  96 done:
  97         ldap_pvt_thread_mutex_unlock( &slapi_printmessage_mutex );
  98
  99         return rc;
 100 }