diff options
Diffstat (limited to 'lib/openpam_log.c')
| -rw-r--r-- | lib/openpam_log.c | 158 |
1 files changed, 158 insertions, 0 deletions
diff --git a/lib/openpam_log.c b/lib/openpam_log.c new file mode 100644 index 0000000..e492294 --- /dev/null +++ b/lib/openpam_log.c @@ -0,0 +1,158 @@ +/*- + * 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. + */ |
