1 files changed, 49 insertions, 0 deletions
diff --git a/src/helper.c b/src/helper.c
new file mode 100644
index 0000000..c746749
--- /dev/null
+++ b/src/helper.c
@@ -0,0 +1,49 @@
+/**
+ * Helper functions for libseccomp
+ *
+ * Copyright (c) 2017 Red Hat <pmoore@redhat.com>
+ * Author: Paul Moore <paul@paul-moore.com>
+ */
+
+/*
+ * This library is free software; you can redistribute it and/or modify it
+ * under the terms of version 2.1 of the GNU Lesser General Public License as
+ * published by the Free Software Foundation.
+ *
+ * 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, see <http://www.gnu.org/licenses>.
+ */
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "helper.h"
+
+/**
+ * Allocate memory
+ * @param size the size of the buffer to allocate
+ *
+ * This function allocates a buffer of the given size, initializes it to zero,
+ * and returns a pointer to buffer on success.  NULL is returned on failure.
+ *
+ */
+void *zmalloc(size_t size)
+{
+	void *ptr;
+
+	/* NOTE: unlike malloc() zero size allocations always return NULL */
+	if (size == 0)
+		return NULL;
+
+	ptr = malloc(size);
+	if (!ptr)
+		return NULL;
+	memset(ptr, 0, size);
+
+	return ptr;
+}