1 files changed, 102 insertions, 0 deletions
diff --git a/lib/pam_end.c b/lib/pam_end.c
new file mode 100644
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--- /dev/null
+++ b/lib/pam_end.c
@@ -0,0 +1,102 @@
+/*-
+ * 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: pam_end.c 408 2007-12-21 11:36:24Z des $
+ */
+
+#include <stdlib.h>
+
+#include <security/pam_appl.h>
+
+#include "openpam_impl.h"
+
+/*
+ * XSSO 4.2.1
+ * XSSO 6 page 42
+ *
+ * Terminate the PAM transaction
+ */
+
+int
+pam_end(pam_handle_t *pamh,
+	int status)
+{
+	pam_data_t *dp;
+	int i;
+
+	ENTER();
+	if (pamh == NULL)
+		RETURNC(PAM_SYSTEM_ERR);
+
+	/* clear module data */
+	while ((dp = pamh->module_data) != NULL) {
+		if (dp->cleanup)
+			(dp->cleanup)(pamh, dp->data, status);
+		pamh->module_data = dp->next;
+		FREE(dp->name);
+		FREE(dp);
+	}
+
+	/* clear environment */
+	while (pamh->env_count) {
+		--pamh->env_count;
+		FREE(pamh->env[pamh->env_count]);
+	}
+	FREE(pamh->env);
+
+	/* clear chains */
+	openpam_clear_chains(pamh->chains);
+
+	/* clear items */
+	for (i = 0; i < PAM_NUM_ITEMS; ++i)
+		pam_set_item(pamh, i, NULL);
+
+	FREE(pamh);
+
+	RETURNC(PAM_SUCCESS);
+}
+
+/*
+ * Error codes:
+ *
+ *	PAM_SYSTEM_ERR
+ */
+
+/**
+ * The =pam_end function terminates a PAM transaction and destroys the
+ * corresponding PAM context, releasing all resources allocated to it.
+ *
+ * The =status argument should be set to the error code returned by the
+ * last API call before the call to =pam_end.
+ */