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/*-
* Copyright (c) 2002-2003 Networks Associates Technology, Inc.
* Copyright (c) 2004-2007 Dag-Erling Smørgrav
* All rights reserved.
*
* This software was developed for the FreeBSD Project by ThinkSec AS and
* Network Associates Laboratories, the Security Research Division of
* Network Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035
* ("CBOSS"), as part of the DARPA CHATS research program.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote
* products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: openpam_log.c 408 2007-12-21 11:36:24Z des $
*/
#include <ctype.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <syslog.h>
#include <security/pam_appl.h>
#include "openpam_impl.h"
#ifdef OPENPAM_DEBUG
int _openpam_debug = 1;
#else
int _openpam_debug = 0;
#endif
#if !defined(openpam_log)
/*
* OpenPAM extension
*
* Log a message through syslog
*/
void
openpam_log(int level, const char *fmt, ...)
{
va_list ap;
int priority;
switch (level) {
case PAM_LOG_DEBUG:
if (!_openpam_debug)
return;
priority = LOG_DEBUG;
break;
case PAM_LOG_VERBOSE:
priority = LOG_INFO;
break;
case PAM_LOG_NOTICE:
priority = LOG_NOTICE;
break;
case PAM_LOG_ERROR:
default:
priority = LOG_ERR;
break;
}
va_start(ap, fmt);
vsyslog(priority, fmt, ap);
va_end(ap);
}
#else
void
_openpam_log(int level, const char *func, const char *fmt, ...)
{
va_list ap;
char *format;
int priority;
switch (level) {
case PAM_LOG_DEBUG:
if (!_openpam_debug)
return;
priority = LOG_DEBUG;
break;
case PAM_LOG_VERBOSE:
priority = LOG_INFO;
break;
case PAM_LOG_NOTICE:
priority = LOG_NOTICE;
break;
case PAM_LOG_ERROR:
default:
priority = LOG_ERR;
break;
}
va_start(ap, fmt);
if (asprintf(&format, "in %s(): %s", func, fmt) > 0) {
vsyslog(priority, format, ap);
FREE(format);
} else {
vsyslog(priority, fmt, ap);
}
va_end(ap);
}
#endif
/**
* The =openpam_log function logs messages using =syslog.
* It is primarily intended for internal use by the library and modules.
*
* The =level argument indicates the importance of the message.
* The following levels are defined:
*
* =PAM_LOG_DEBUG:
* Debugging messages.
* These messages are normally not logged unless the global
* integer variable :_openpam_debug is set to a non-zero
* value, in which case they are logged with a =syslog
* priority of =LOG_DEBUG.
* =PAM_LOG_VERBOSE:
* Information about the progress of the authentication
* process, or other non-essential messages.
* These messages are logged with a =syslog priority of
* =LOG_INFO.
* =PAM_LOG_NOTICE:
* Messages relating to non-fatal errors.
* These messages are logged with a =syslog priority of
* =LOG_NOTICE.
* =PAM_LOG_ERROR:
* Messages relating to serious errors.
* These messages are logged with a =syslog priority of
* =LOG_ERR.
*
* The remaining arguments are a =printf format string and the
* corresponding arguments.
*/
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