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+/*
+ * Copyright (c) 2005 , Red Hat, Inc.
+ * Copyright (c) 2005 , Tomasz Kłoczko
+ * Copyright (c) 2008 , Nicolas François
+ * All rights reserved.
+ *
+ * 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 copyright holders or contributors may not be used to
+ * endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT
+ * HOLDERS 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.
+ */
+
+/*
+ * Audit helper functions used throughout shadow
+ *
+ */
+
+#include <config.h>
+
+#ifdef WITH_AUDIT
+
+#include <stdlib.h>
+#include <syslog.h>
+#include <stdarg.h>
+#include <libaudit.h>
+#include <errno.h>
+#include <stdio.h>
+#include "prototypes.h"
+int audit_fd;
+
+void audit_help_open (void)
+{
+ audit_fd = audit_open ();
+ if (audit_fd < 0) {
+ /* You get these only when the kernel doesn't have
+ * audit compiled in. */
+ if ( (errno == EINVAL)
+ || (errno == EPROTONOSUPPORT)
+ || (errno == EAFNOSUPPORT)) {
+ return;
+ }
+ (void) fputs (_("Cannot open audit interface - aborting.\n"),
+ stderr);
+ exit (EXIT_FAILURE);
+ }
+}
+
+/*
+ * This function will log a message to the audit system using a predefined
+ * message format. Parameter usage is as follows:
+ *
+ * type - type of message: AUDIT_USER_CHAUTHTOK for changing any account
+ * attributes.
+ * pgname - program's name
+ * op - operation. "adding user", "changing finger info", "deleting group"
+ * name - user's account or group name. If not available use NULL.
+ * id - uid or gid that the operation is being performed on. This is used
+ * only when user is NULL.
+ */
+void audit_logger (int type, unused const char *pgname, const char *op,
+ const char *name, unsigned int id,
+ shadow_audit_result result)
+{
+ if (audit_fd < 0) {
+ return;
+ } else {
+ audit_log_acct_message (audit_fd, type, NULL, op, name, id,
+ NULL, NULL, NULL, (int) result);
+ }
+}
+
+void audit_logger_message (const char *message, shadow_audit_result result)
+{
+ if (audit_fd < 0) {
+ return;
+ } else {
+ audit_log_user_message (audit_fd,
+ AUDIT_USYS_CONFIG,
+ message,
+ NULL, /* hostname */
+ NULL, /* addr */
+ NULL, /* tty */
+ (int) result);
+ }
+}
+
+#else /* WITH_AUDIT */
+extern int errno; /* warning: ANSI C forbids an empty source file */
+#endif /* WITH_AUDIT */
+