michael@0: /*
michael@0:  * err.c
michael@0:  *
michael@0:  * error status reporting functions
michael@0:  *
michael@0:  * David A. McGrew
michael@0:  * Cisco Systems, Inc.
michael@0:  */
michael@0: /*
michael@0:  *	
michael@0:  * Copyright(c) 2001-2006 Cisco Systems, Inc.
michael@0:  * All rights reserved.
michael@0:  * 
michael@0:  * Redistribution and use in source and binary forms, with or without
michael@0:  * modification, are permitted provided that the following conditions
michael@0:  * are met:
michael@0:  * 
michael@0:  *   Redistributions of source code must retain the above copyright
michael@0:  *   notice, this list of conditions and the following disclaimer.
michael@0:  * 
michael@0:  *   Redistributions in binary form must reproduce the above
michael@0:  *   copyright notice, this list of conditions and the following
michael@0:  *   disclaimer in the documentation and/or other materials provided
michael@0:  *   with the distribution.
michael@0:  * 
michael@0:  *   Neither the name of the Cisco Systems, Inc. nor the names of its
michael@0:  *   contributors may be used to endorse or promote products derived
michael@0:  *   from this software without specific prior written permission.
michael@0:  * 
michael@0:  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
michael@0:  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
michael@0:  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
michael@0:  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
michael@0:  * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
michael@0:  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
michael@0:  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
michael@0:  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
michael@0:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
michael@0:  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
michael@0:  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
michael@0:  * OF THE POSSIBILITY OF SUCH DAMAGE.
michael@0:  *
michael@0:  */
michael@0: 
michael@0: #include "err.h"
michael@0: 
michael@0: #ifdef ERR_REPORTING_SYSLOG
michael@0: # ifdef HAVE_SYSLOG_H
michael@0: #  include <syslog.h>
michael@0: # endif
michael@0: #endif
michael@0: 
michael@0: 
michael@0: /*  err_level reflects the level of errors that are reported  */
michael@0: 
michael@0: err_reporting_level_t err_level = err_level_none;
michael@0: 
michael@0: #ifdef SRTP_KERNEL_LINUX
michael@0: err_status_t
michael@0: err_reporting_init(char *ident) {
michael@0: 
michael@0:   return err_status_ok;
michael@0: }
michael@0: 
michael@0: #else /* SRTP_KERNEL_LINUX */	
michael@0: 
michael@0: /* err_file is the FILE to which errors are reported */
michael@0: 
michael@0: static FILE *err_file = NULL;
michael@0: 
michael@0: err_status_t
michael@0: err_reporting_init(char *ident) {
michael@0: #ifdef ERR_REPORTING_SYSLOG
michael@0:   openlog(ident, LOG_PID, LOG_AUTHPRIV);
michael@0: #endif
michael@0:   
michael@0:   /*
michael@0:    * Believe it or not, openlog doesn't return an error on failure.
michael@0:    * But then, neither does the syslog() call...
michael@0:    */
michael@0: 
michael@0: #ifdef ERR_REPORTING_STDOUT
michael@0:   err_file = stdout;
michael@0: #elif defined(USE_ERR_REPORTING_FILE)
michael@0:   /* open file for error reporting */
michael@0:   err_file = fopen(ERR_REPORTING_FILE, "w");
michael@0:   if (err_file == NULL)
michael@0:     return err_status_init_fail;
michael@0: #endif
michael@0: 
michael@0:   return err_status_ok;
michael@0: }
michael@0: 
michael@0: void
michael@0: err_report(int priority, char *format, ...) {
michael@0:   va_list args;
michael@0: 
michael@0:   if ((err_reporting_level_t)priority <= err_level) {
michael@0: 
michael@0:     va_start(args, format);
michael@0:     if (err_file != NULL) {
michael@0:       vfprintf(err_file, format, args);
michael@0: 	  /*      fprintf(err_file, "\n"); */
michael@0:     }
michael@0: #ifdef ERR_REPORTING_SYSLOG
michael@0:     if (1) { /* FIXME: Make this a runtime option. */
michael@0:       int syslogpri;
michael@0: 
michael@0:       switch (priority) {
michael@0:       case err_level_emergency:
michael@0: 	syslogpri = LOG_EMERG;
michael@0: 	break;
michael@0:       case err_level_alert:
michael@0: 	syslogpri = LOG_ALERT;
michael@0: 	break;
michael@0:       case err_level_critical:
michael@0: 	syslogpri = LOG_CRIT;
michael@0: 	break;
michael@0:       case err_level_error:
michael@0: 	syslogpri = LOG_ERR;
michael@0: 	break;
michael@0:       case err_level_warning:
michael@0: 	syslogpri = LOG_WARNING;
michael@0: 	break;
michael@0:       case err_level_notice:
michael@0: 	syslogpri = LOG_NOTICE;
michael@0: 	break;
michael@0:       case err_level_info:
michael@0: 	syslogpri = LOG_INFO;
michael@0: 	break;
michael@0:       case err_level_debug:
michael@0:       case err_level_none:
michael@0:       default:
michael@0: 	syslogpri = LOG_DEBUG;
michael@0: 	break;
michael@0:       }
michael@0: 
michael@0:       vsyslog(syslogpri, format, args);
michael@0: #endif
michael@0:     va_end(args);
michael@0:   }
michael@0: }
michael@0: #endif /* SRTP_KERNEL_LINUX */	
michael@0: 
michael@0: void
michael@0: err_reporting_set_level(err_reporting_level_t lvl) { 
michael@0:   err_level = lvl;
michael@0: }