1 files changed, 123 insertions, 0 deletions
diff --git a/libqpol/src/context_query.c b/libqpol/src/context_query.c
new file mode 100644
index 0000000..cd17a21
--- /dev/null
+++ b/libqpol/src/context_query.c
@@ -0,0 +1,123 @@
+/**
+*  @file
+*  Defines the public interface for accessing contexts.
+*
+*  @author Kevin Carr kcarr@tresys.com
+*  @author Jeremy A. Mowery jmowery@tresys.com
+*  @author Jason Tang jtang@tresys.com
+*
+*  Copyright (C) 2006-2007 Tresys Technology, LLC
+*
+*  This library is free software; you can redistribute it and/or
+*  modify it under the terms of the GNU Lesser General Public
+*  License as published by the Free Software Foundation; either
+*  version 2.1 of the License, or (at your option) any later version.
+*
+*  This library is distributed in the hope that it will be useful,
+*  but WITHOUT ANY WARRANTY; without even the implied warranty of
+*  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+*  Lesser General Public License for more details.
+*
+*  You should have received a copy of the GNU Lesser General Public
+*  License along with this library; if not, write to the Free Software
+*  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+#include <stddef.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <qpol/policy.h>
+#include <qpol/context_query.h>
+#include <qpol/user_query.h>
+#include <qpol/role_query.h>
+#include <qpol/type_query.h>
+#include <qpol/mls_query.h>
+#include <sepol/policydb/policydb.h>
+#include <sepol/policydb/context.h>
+#include "qpol_internal.h"
+
+int qpol_context_get_user(const qpol_policy_t * policy, const qpol_context_t * context, const qpol_user_t ** user)
+{
+	policydb_t *db = NULL;
+	context_struct_t *internal_context = NULL;
+
+	if (user != NULL)
+		*user = NULL;
+
+	if (policy == NULL || context == NULL || user == NULL) {
+		ERR(policy, "%s", strerror(EINVAL));
+		errno = EINVAL;
+		return STATUS_ERR;
+	}
+
+	internal_context = (context_struct_t *) context;
+	db = &policy->p->p;
+
+	*user = (qpol_user_t *) db->user_val_to_struct[internal_context->user - 1];
+
+	return STATUS_SUCCESS;
+}
+
+int qpol_context_get_role(const qpol_policy_t * policy, const qpol_context_t * context, const qpol_role_t ** role)
+{
+	policydb_t *db = NULL;
+	context_struct_t *internal_context = NULL;
+
+	if (role != NULL)
+		*role = NULL;
+
+	if (policy == NULL || context == NULL || role == NULL) {
+		ERR(policy, "%s", strerror(EINVAL));
+		errno = EINVAL;
+		return STATUS_ERR;
+	}
+
+	internal_context = (context_struct_t *) context;
+	db = &policy->p->p;
+
+	*role = (qpol_role_t *) db->role_val_to_struct[internal_context->role - 1];
+
+	return STATUS_SUCCESS;
+}
+
+int qpol_context_get_type(const qpol_policy_t * policy, const qpol_context_t * context, const qpol_type_t ** type)
+{
+	policydb_t *db = NULL;
+	context_struct_t *internal_context = NULL;
+
+	if (type != NULL)
+		*type = NULL;
+
+	if (policy == NULL || context == NULL || type == NULL) {
+		ERR(policy, "%s", strerror(EINVAL));
+		errno = EINVAL;
+		return STATUS_ERR;
+	}
+
+	internal_context = (context_struct_t *) context;
+	db = &policy->p->p;
+
+	*type = (qpol_type_t *) db->type_val_to_struct[internal_context->type - 1];
+
+	return STATUS_SUCCESS;
+}
+
+int qpol_context_get_range(const qpol_policy_t * policy, const qpol_context_t * context, const qpol_mls_range_t ** range)
+{
+	context_struct_t *internal_context = NULL;
+
+	if (range != NULL)
+		*range = NULL;
+
+	if (policy == NULL || context == NULL || range == NULL) {
+		ERR(policy, "%s", strerror(EINVAL));
+		errno = EINVAL;
+		return STATUS_ERR;
+	}
+
+	internal_context = (context_struct_t *) context;
+
+	*range = (qpol_mls_range_t *) & internal_context->range;
+
+	return STATUS_SUCCESS;
+}