1 files changed, 18 insertions, 0 deletions
diff --git a/libkeccak_state_unmarshal_skip.c b/libkeccak_state_unmarshal_skip.c
new file mode 100644
index 0000000..df488bf
--- /dev/null
+++ b/libkeccak_state_unmarshal_skip.c
@@ -0,0 +1,18 @@
+/* See LICENSE file for copyright and license details. */
+#include "common.h"
+
+
+/**
+ * Gets the number of bytes the `libkeccak_state_t` stored
+ * at the beginning of `data` occupies
+ * 
+ * @param   data  The data buffer
+ * @return        The byte size of the stored state
+ */
+size_t
+libkeccak_state_unmarshal_skip(const void *restrict data_)
+{
+	const char *restrict data = data_;
+	data += (7 * sizeof(long int) + 26 * sizeof(int64_t)) / sizeof(char);
+	return sizeof(libkeccak_state_t) - sizeof(char *) + *(const size_t *)data * sizeof(char);
+}