1 files changed, 89 insertions, 0 deletions
diff --git a/lib/audit_help.c b/lib/audit_help.c
new file mode 100644
index 0000000..54109f0
--- /dev/null
+++ b/lib/audit_help.c
@@ -0,0 +1,89 @@
+/*
+ * SPDX-FileCopyrightText: 2005       , Red Hat, Inc.
+ * SPDX-FileCopyrightText: 2005       , Tomasz Kłoczko
+ * SPDX-FileCopyrightText: 2008       , Nicolas François
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+/*
+ *  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 "attr.h"
+#include "prototypes.h"
+#include "shadowlog.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"),
+		              log_get_logfd());
+		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, MAYBE_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, 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 */
+		                        result);
+	}
+}
+
+#else				/* WITH_AUDIT */
+extern int ISO_C_forbids_an_empty_translation_unit;
+#endif				/* WITH_AUDIT */
+